This paper proposes a new approach of design and implementation of 3 phase to 3 phase conversion using
matrix converter. It includes the design, modeling and implementation. The entire matrix converter circuits are
developed by mathematical model so as to reduce computational time and performances of the converter are
evaluated using MATLAB/SIMULINK for RL Load. The mathematical expressions relating the input and
output of the three phase matrix converter are implemented by using simulink block set. The duty cycles of the
matrix converter bidirectional switches are calculated using modified venturini algorithm for maximum (0.866)
and minimum (0.5) voltage transfer ratio.
International Refereed Journal of Engineering and Science (IRJES)irjes
a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications.
Convergence analysis of the triangular-based power flow method for AC distribu...IJECEIAES
This paper addresses the convergence analysis of the triangular-based power flow (PF) method in alternating current radial distribution networks. The PF formulation is made via upper-triangular matrices, which enables finding a general iterative PF formula that does not require admittance matrix calculations. The convergence analysis of this iterative formula is carried out by applying the Banach fixed-point theorem (BFPT), which allows demonstrating that under an adequate voltage profile the triangular-based PF always converges. Numerical validations are made, on the well-known 33 and 69 distribution networks test systems. Gauss-seidel, newton-raphson, and backward/forward PF methods are considered for the sake of comparison. All the simulations are carried out in MATLAB software.
Wind Energy Conversion Based On Matrix ConverterIAES-IJPEDS
In recent years renewable sources such as solar, wave and wind are used for the generation of electricity. Wind is one of the major renewable sources. The amount of energy from a Wind Energy Conversion System (WECS) depends not only on the wind at the site, but also on the control strategy used for the WECS. In assistance to get the appropriate wind energy from the conversion system, wind turbine generator will be run in variable speed mode. The variable speed capability is achieved through the use of an advanced power electronic converter. Fixed speed wind turbines and induction generators are often used in wind farms. But the limitations of such generators are low efficiency and poor power quality which necessitates the variable speed wind turbine generators such as Doubly Fed Induction Generator (DFIG) and Permanent Magnet Synchronous Generator (PMSG). A high-performance configuration can be obtained by using a PMSG and a converter in combination AC-DC-AC connect between stator & rotor points for providing the required variable speed operation.
MATHEMATICAL MODEL OF WIND TURBINE IN GRID-OFF SYSTEM Mellah Hacene
Abstract
This paper deals with the construction of a mathematical model of a wind turbine, which is one of the sources in the Grid-Off
system.
Keywords: mathematical model, wind turbine, Grid-Off system, electric generator, wind conditions.
1 Introduction
As one of the power sources of the Grid-Off system is a wind turbine. It is advantageous to work with a
mathematical model for the need of experimental research. In Fig. 1 is a schematic connection of a wind turbine
to a container, which is a Grid-Off system. [1-4]
Enhancement of upfc performance with matrix converter using advanced direct p...eSAT Journals
Abstract In this paper presents a direct power control (DPC) for three-phase matrix converters operating as unified power flow controllers (UPFCs). Matrix converters (MCs) allow the direct ac/ac power conversion without dc energy storage links; therefore, the MC-based UPFC (MC-UPFC) has reduced size and cost, reduced capacitor power losses, together with higher reliability. Theoretical principles of direct power control (DPC) based on sliding mode control methods are established for an MC-UPFC dynamic model including the input filter. As a result, line active and reactive power, together with ac supply reactive power, can be directly controlled by selecting an appropriate matrix converter switching state assuring good steady-state and dynamic responses. Experimental results of DPC controllers for MC-UPFC show decoupled active and reactive power control, zero steady-state tracking error, and fast response times. Compared to an MC-UPFC using active and reactive power linear controllers based on a modified Venturini high-frequency PWM modulator, the experimental results of the advanced DPC-MC guarantee faster responses without overshoot and no steady-state error, presenting no cross-coupling in dynamic and steady-state responses. Keywords: Ac/ac conversion advanced direct power controller, matrix converter, unified power flow controller.
Passivity Based Control for PV Applications by Using a Buck Power Converter
The use of power converters for everyday applications is becoming more and more important. Current technological applications simultaneously demand a high level of precision and performance, so DC-DC converters have a very important role in systems requiring energy level conversion and adaptation. As part of the work of this paper, we are interested in an analysis of modeling and control law synthesis approaches to ensure stability and a certain level of performance in the entire operating domain. The objective of our research work is therefore to propose a control law whose synthesis is based on a formalized (modeling & control) approach with a view to obtaining a control law adapted to the operating point. The principles used are based on the control and observation by the theory of passivity for the synthesis of control law of buck power converter for PV Applications.
International Refereed Journal of Engineering and Science (IRJES)irjes
a leading international journal for publication of new ideas, the state of the art research results and fundamental advances in all aspects of Engineering and Science. IRJES is a open access, peer reviewed international journal with a primary objective to provide the academic community and industry for the submission of half of original research and applications.
Convergence analysis of the triangular-based power flow method for AC distribu...IJECEIAES
This paper addresses the convergence analysis of the triangular-based power flow (PF) method in alternating current radial distribution networks. The PF formulation is made via upper-triangular matrices, which enables finding a general iterative PF formula that does not require admittance matrix calculations. The convergence analysis of this iterative formula is carried out by applying the Banach fixed-point theorem (BFPT), which allows demonstrating that under an adequate voltage profile the triangular-based PF always converges. Numerical validations are made, on the well-known 33 and 69 distribution networks test systems. Gauss-seidel, newton-raphson, and backward/forward PF methods are considered for the sake of comparison. All the simulations are carried out in MATLAB software.
Wind Energy Conversion Based On Matrix ConverterIAES-IJPEDS
In recent years renewable sources such as solar, wave and wind are used for the generation of electricity. Wind is one of the major renewable sources. The amount of energy from a Wind Energy Conversion System (WECS) depends not only on the wind at the site, but also on the control strategy used for the WECS. In assistance to get the appropriate wind energy from the conversion system, wind turbine generator will be run in variable speed mode. The variable speed capability is achieved through the use of an advanced power electronic converter. Fixed speed wind turbines and induction generators are often used in wind farms. But the limitations of such generators are low efficiency and poor power quality which necessitates the variable speed wind turbine generators such as Doubly Fed Induction Generator (DFIG) and Permanent Magnet Synchronous Generator (PMSG). A high-performance configuration can be obtained by using a PMSG and a converter in combination AC-DC-AC connect between stator & rotor points for providing the required variable speed operation.
MATHEMATICAL MODEL OF WIND TURBINE IN GRID-OFF SYSTEM Mellah Hacene
Abstract
This paper deals with the construction of a mathematical model of a wind turbine, which is one of the sources in the Grid-Off
system.
Keywords: mathematical model, wind turbine, Grid-Off system, electric generator, wind conditions.
1 Introduction
As one of the power sources of the Grid-Off system is a wind turbine. It is advantageous to work with a
mathematical model for the need of experimental research. In Fig. 1 is a schematic connection of a wind turbine
to a container, which is a Grid-Off system. [1-4]
Enhancement of upfc performance with matrix converter using advanced direct p...eSAT Journals
Abstract In this paper presents a direct power control (DPC) for three-phase matrix converters operating as unified power flow controllers (UPFCs). Matrix converters (MCs) allow the direct ac/ac power conversion without dc energy storage links; therefore, the MC-based UPFC (MC-UPFC) has reduced size and cost, reduced capacitor power losses, together with higher reliability. Theoretical principles of direct power control (DPC) based on sliding mode control methods are established for an MC-UPFC dynamic model including the input filter. As a result, line active and reactive power, together with ac supply reactive power, can be directly controlled by selecting an appropriate matrix converter switching state assuring good steady-state and dynamic responses. Experimental results of DPC controllers for MC-UPFC show decoupled active and reactive power control, zero steady-state tracking error, and fast response times. Compared to an MC-UPFC using active and reactive power linear controllers based on a modified Venturini high-frequency PWM modulator, the experimental results of the advanced DPC-MC guarantee faster responses without overshoot and no steady-state error, presenting no cross-coupling in dynamic and steady-state responses. Keywords: Ac/ac conversion advanced direct power controller, matrix converter, unified power flow controller.
Passivity Based Control for PV Applications by Using a Buck Power Converter
The use of power converters for everyday applications is becoming more and more important. Current technological applications simultaneously demand a high level of precision and performance, so DC-DC converters have a very important role in systems requiring energy level conversion and adaptation. As part of the work of this paper, we are interested in an analysis of modeling and control law synthesis approaches to ensure stability and a certain level of performance in the entire operating domain. The objective of our research work is therefore to propose a control law whose synthesis is based on a formalized (modeling & control) approach with a view to obtaining a control law adapted to the operating point. The principles used are based on the control and observation by the theory of passivity for the synthesis of control law of buck power converter for PV Applications.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
1 ijaems oct-2015-3-design and development of novel matrix converter performanceINFOGAIN PUBLICATION
Matrix converter is a direct AC-AC converter topology that directly converts energy from an AC source to an AC load without the need of a bulky and limited lifetime energy storage element. Due to the significant advantages offered by matrix converter, such as adjustable power factor, capability of regeneration and high quality sinusoidal input/output waveforms. Matrix converter has been one of the AC–AC topologies that hasreceived extensive research attention for being an alternative to replace traditional AC-DC-AC converters in the variable voltage and variable frequency AC drive applications. In the present paper an indirect space vector modulated matrix converter is proposed. The basic idea of an indirect modulation scheme is to separately apply SVM to the rectification and inversion stages, before combining their switching states to produce the final gating signals. The paper encompasses development of a laboratory prototype of 230V, 250VA three phase to three phase DSP controlled matrix converter fed induction motor drive. The observations and real time testings have been carried out to evaluate and improve the stability of system under various typical abnormal input voltage conditions
Parametric estimation in photovoltaic modules using the crow search algorithmIJECEIAES
The problem of parametric estimation in photovoltaic (PV) modules considering man- ufacturer information is addressed in this research from the perspective of combinatorial optimization. With the data sheet provided by the PV manufacturer, a non-linear non-convex optimization problem is formulated that contains information regarding maximum power, open-circuit, and short-circuit points. To estimate the three parameters of the PV model (i.e., the ideality diode factor (a) and the parallel and series resistances (R p and R )), the crow search algorithm (CSA) is employed, which is a metaheuristic optimization technique inspired by the behavior of the crows searching food deposits. The CSA allows the exploration and exploitation of the solution space through a simple evolution rule derived from the classical PSO method. Numerical simulations reveal the effectiveness and robustness of the CSA to estimate these parameters with objective function values lower than 1 10 s 28 and processing times less than 2 s. All the numerical simulations were developed in MATLAB 2020a and compared with the sine-cosine and vortex search algorithms recently reported in the literature.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Renewable energy sources are increasingly being used today and solar energy is the most readily and abundantly available energy source. Boost converters are an integral part of any solar energy system. In order to obtain maximum possible energy from the solar system multi-phase interleaved boost converters are used. This paper presents the small-signal ac modelling and closed loop control of three-phase interleaved boost converter. State–space modelling methodology has been adopted to have linearized equivalent model of the boost converter. The interleaved three-phase boost converter is averaged over its one switching period and perturbed with small ac variations and finally linearized around its quiescent point to have a small signal ac model. Type III compensator is employed to improve the frequency response and closed loop control of three-phase boost converter. The controller design procedure is discussed in detail. The effect of right-half plane zero in non-minimum phase system and the appropriate pole-zero placements to overcome the maximum phase lag in such system is discussed. The compensated closed loop system is tested for load variations to observe the transient response.
A REVIEW ON EVALUATION OF PV MODELS BASED ON AN INTEGRATION USING A NEW CONFI...ijiert bestjournal
The effect of linear imbalances and nonlinear loads on the voltage balance of the neutral-point- clamped converters is described in this paper. The Neutral-Point-Clamped inverters are used in the multilevel inverters for high power application s. In this paper a three level NPC inverter that couple accommodate with solar photovoltaic (PV) and battery storage in grid connected system. The three level space vector modulation technique (SVPWM) is proposed. The SVPWM correct the ac voltage under unbalance dc voltage condition .SV-PWM strategy makes it possible to control the neutral point voltage by optimum choice of switch sequence for any position and length of output voltage vector. The control scheme has capability to control the power delivery between the solar PV,battery,and grid,it simulta neously provides maximum power point tracking (MPPT) operation for the solar PV. The res ults of matlab modeling of the system detail the comparative operation of inverter topologies wh ich are the conventional two level inverters and multilevel inverter topology to reduce total ha rmonic distortions in grid voltage and electromagnetic interference. Three-level NPC volta ge source inverter that can integrate both renewable energy and battery storage on the dc side of the inverter has been presented. The effectiveness of the proposed methodology is invest igated by the simulation of several scenarios,including battery charging and discharging with dif ferent levels of solar irradiation.
Multiphase Transformer Modelling using Finite Element MethodIAES-IJPEDS
In the year of 1970 saw the starting invention of the five-phase motor as the milestone in advanced electric motor. Through the years, there are many researchers, which passionately worked towards developing for multiphase drive system. They developed a static transformation system to obtain a multiphase supply from the available three-phase supply. This idea gives an influence for further development in electric machines as an example; an efficient solution for bulk power transfer. This paper highlighted the detail descriptions that lead to five-phase supply with fixed voltage and frequency by using Finite-Element Method (FEM). Identifying of specification on a real transformer had been done before applied into software modeling. Therefore, Finite-Element Method provides clearly understandable in terms of visualize the geometry modeling, connection scheme and output waveform.
A Comparison Between Two Average Modelling Techniques of AC-AC Power ConvertersIAES-IJPEDS
In this paper, a comparative evaluation of two modelling tools for switching AC-AC power converters is presented. Both of them are based on average modelling techniques. The first approach is based on the circuit averaging technique and consists in the topological manipulations, applied to a converter states. The second approach makes use of a state-space averaged model of the converter and is based on analytical manipulations using the different state representations of a converter. The two modelling techniques are applied to a same AC-AC called matrix-reactance frequency converter based on buck-boost topology. These techniques are compared on the basis of their rapidity, quantity of calculations and transformations and its limitations.
Modified T-type topology of three-phase multi-level inverter for photovoltaic...IJECEIAES
In this article, a three-phase multilevel neutral-point-clamped inverter with a modified t-type structure of switches is proposed. A pulse width modulation (PWM) scheme of the proposed inverter is also developed. The proposed topology of the multilevel inverter has the advantage of being simple, on the one hand since it does contain only semiconductors in reduced number (corresponding to the number of required voltage levels), and no other components such as switching or flying capacitors, and on the other hand, the control scheme is much simpler and more suitable for variable frequency and voltage control. The performances of this inverter are analyzed through simulations carried out in the MATLAB/Simulink environment on a threephase inverter with 9 levels. In all simulations, the proposed topology is connected with R-load or RL-load without any output filter.
In recent years, studies have been investigated the effectiveness of UPFC and TCSC in increasing power transfer capability. However, the effectiveness of these FACTS devices in increasing power transfer capability when the load is non-linear has not been established in a comparative study yet. This paper will explore the steady-state performance of the UPFC and TCSC as impedance compensation models. The effectiveness of both FACTS devices are investigated when they are installed in multi-machine systems with different non-linear load models. Simulation results demonstrate that, upon installing UPFC, more active and reactive powers are received at the sending end bus for different types of non-linear load models. In addition, both active and reactive powers are more sensitive in changing the modulation index of the converters. Furthermore, both the active and reactive powers are less sensitive to the non-linearity of the load model type. However, active and reactive powers in case of installing TCSC are only sensitive in changing the firing angle (α) when it is between 90º to 110º. Therefore, results from this study clearly encourage the effectiveness of UPFC in comparison to TSCS in terms of increasing power transfer capability applied to non-linear load models.
The two five-phase Induction Motor (IM) drive system that is serially connected is available in literature. The power supply of such system is considered as a matrix converter (a direct AC to AC converter system) by three and five-phases outputs. The main benefit from the drive topology is the sinusoidal source as a side current with a controllable input side power factor. The decoupled control is achieved similarly to the inverter based drive system. In this paper; the decoupled control of two five-phase induction machines serially connected and powered by a five-phase matrix converter as well as analytical and simulation results are presented.
A Novel Control Strategy of Indirect Matrix Converter Using Space Vector Modu...IJPEDS-IAES
This paper introduces a control scheme of Indirect Matrix Converter which includes space vector modulation to stabilize the frequency variations. The terminal voltage and frequency of any synchronous machine can be controlled easily with this scheme. Further the control strategy is proposed and implemented in Matlab/Simulink Embedded system which gives significant better performance compared to conventional control technique like better Total Harmonic Distortion (THD), more output voltage with same Modulation Index, less switching stress and less switching loss. This method might prove effective for wind energy conversion system using DFIG as the DFIG speed is close to synchronous speed. The complete control strategy is verified using MATLAB/Simulink.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
A hybrid algorithm for voltage stability enhancement of distribution systems IJECEIAES
This paper presents a hybrid algorithm by applying a hybrid firefly and particle swarm optimization algorithm (HFPSO) to determine the optimal sizing of distributed generation (DG) and distribution static compensator (D-STATCOM) device. A multi-objective function is employed to enhance the voltage stability, voltage profile, and minimize the total power loss of the radial distribution system (RDS). Firstly, the voltage stability index (VSI) is applied to locate the optimal location of DG and D-STATCOM respectively. Secondly, to overcome the sup-optimal operation of existing algorithms, the HFPSO algorithm is utilized to determine the optimal size of both DG and D-STATCOM. Verification of the proposed algorithm has achieved on the standard IEEE 33-bus and Iraqi 65-bus radial distribution systems through simulation using MATLAB. Comprehensive simulation results of four different cases show that the proposed HFPSO demonstrates significant improvements over other existing algorithms in supporting voltage stability and loss reduction in distribution networks. Furthermore, comparisons have achieved to demonstrate the superiority of HFPSO algorithms over other techniques due to its ability to determine the global optimum solution by easy way and speed converge feature.
State space vector based advanced direct power control of matrix converter as...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
1 ijaems oct-2015-3-design and development of novel matrix converter performanceINFOGAIN PUBLICATION
Matrix converter is a direct AC-AC converter topology that directly converts energy from an AC source to an AC load without the need of a bulky and limited lifetime energy storage element. Due to the significant advantages offered by matrix converter, such as adjustable power factor, capability of regeneration and high quality sinusoidal input/output waveforms. Matrix converter has been one of the AC–AC topologies that hasreceived extensive research attention for being an alternative to replace traditional AC-DC-AC converters in the variable voltage and variable frequency AC drive applications. In the present paper an indirect space vector modulated matrix converter is proposed. The basic idea of an indirect modulation scheme is to separately apply SVM to the rectification and inversion stages, before combining their switching states to produce the final gating signals. The paper encompasses development of a laboratory prototype of 230V, 250VA three phase to three phase DSP controlled matrix converter fed induction motor drive. The observations and real time testings have been carried out to evaluate and improve the stability of system under various typical abnormal input voltage conditions
Parametric estimation in photovoltaic modules using the crow search algorithmIJECEIAES
The problem of parametric estimation in photovoltaic (PV) modules considering man- ufacturer information is addressed in this research from the perspective of combinatorial optimization. With the data sheet provided by the PV manufacturer, a non-linear non-convex optimization problem is formulated that contains information regarding maximum power, open-circuit, and short-circuit points. To estimate the three parameters of the PV model (i.e., the ideality diode factor (a) and the parallel and series resistances (R p and R )), the crow search algorithm (CSA) is employed, which is a metaheuristic optimization technique inspired by the behavior of the crows searching food deposits. The CSA allows the exploration and exploitation of the solution space through a simple evolution rule derived from the classical PSO method. Numerical simulations reveal the effectiveness and robustness of the CSA to estimate these parameters with objective function values lower than 1 10 s 28 and processing times less than 2 s. All the numerical simulations were developed in MATLAB 2020a and compared with the sine-cosine and vortex search algorithms recently reported in the literature.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Renewable energy sources are increasingly being used today and solar energy is the most readily and abundantly available energy source. Boost converters are an integral part of any solar energy system. In order to obtain maximum possible energy from the solar system multi-phase interleaved boost converters are used. This paper presents the small-signal ac modelling and closed loop control of three-phase interleaved boost converter. State–space modelling methodology has been adopted to have linearized equivalent model of the boost converter. The interleaved three-phase boost converter is averaged over its one switching period and perturbed with small ac variations and finally linearized around its quiescent point to have a small signal ac model. Type III compensator is employed to improve the frequency response and closed loop control of three-phase boost converter. The controller design procedure is discussed in detail. The effect of right-half plane zero in non-minimum phase system and the appropriate pole-zero placements to overcome the maximum phase lag in such system is discussed. The compensated closed loop system is tested for load variations to observe the transient response.
A REVIEW ON EVALUATION OF PV MODELS BASED ON AN INTEGRATION USING A NEW CONFI...ijiert bestjournal
The effect of linear imbalances and nonlinear loads on the voltage balance of the neutral-point- clamped converters is described in this paper. The Neutral-Point-Clamped inverters are used in the multilevel inverters for high power application s. In this paper a three level NPC inverter that couple accommodate with solar photovoltaic (PV) and battery storage in grid connected system. The three level space vector modulation technique (SVPWM) is proposed. The SVPWM correct the ac voltage under unbalance dc voltage condition .SV-PWM strategy makes it possible to control the neutral point voltage by optimum choice of switch sequence for any position and length of output voltage vector. The control scheme has capability to control the power delivery between the solar PV,battery,and grid,it simulta neously provides maximum power point tracking (MPPT) operation for the solar PV. The res ults of matlab modeling of the system detail the comparative operation of inverter topologies wh ich are the conventional two level inverters and multilevel inverter topology to reduce total ha rmonic distortions in grid voltage and electromagnetic interference. Three-level NPC volta ge source inverter that can integrate both renewable energy and battery storage on the dc side of the inverter has been presented. The effectiveness of the proposed methodology is invest igated by the simulation of several scenarios,including battery charging and discharging with dif ferent levels of solar irradiation.
Multiphase Transformer Modelling using Finite Element MethodIAES-IJPEDS
In the year of 1970 saw the starting invention of the five-phase motor as the milestone in advanced electric motor. Through the years, there are many researchers, which passionately worked towards developing for multiphase drive system. They developed a static transformation system to obtain a multiphase supply from the available three-phase supply. This idea gives an influence for further development in electric machines as an example; an efficient solution for bulk power transfer. This paper highlighted the detail descriptions that lead to five-phase supply with fixed voltage and frequency by using Finite-Element Method (FEM). Identifying of specification on a real transformer had been done before applied into software modeling. Therefore, Finite-Element Method provides clearly understandable in terms of visualize the geometry modeling, connection scheme and output waveform.
A Comparison Between Two Average Modelling Techniques of AC-AC Power ConvertersIAES-IJPEDS
In this paper, a comparative evaluation of two modelling tools for switching AC-AC power converters is presented. Both of them are based on average modelling techniques. The first approach is based on the circuit averaging technique and consists in the topological manipulations, applied to a converter states. The second approach makes use of a state-space averaged model of the converter and is based on analytical manipulations using the different state representations of a converter. The two modelling techniques are applied to a same AC-AC called matrix-reactance frequency converter based on buck-boost topology. These techniques are compared on the basis of their rapidity, quantity of calculations and transformations and its limitations.
Modified T-type topology of three-phase multi-level inverter for photovoltaic...IJECEIAES
In this article, a three-phase multilevel neutral-point-clamped inverter with a modified t-type structure of switches is proposed. A pulse width modulation (PWM) scheme of the proposed inverter is also developed. The proposed topology of the multilevel inverter has the advantage of being simple, on the one hand since it does contain only semiconductors in reduced number (corresponding to the number of required voltage levels), and no other components such as switching or flying capacitors, and on the other hand, the control scheme is much simpler and more suitable for variable frequency and voltage control. The performances of this inverter are analyzed through simulations carried out in the MATLAB/Simulink environment on a threephase inverter with 9 levels. In all simulations, the proposed topology is connected with R-load or RL-load without any output filter.
In recent years, studies have been investigated the effectiveness of UPFC and TCSC in increasing power transfer capability. However, the effectiveness of these FACTS devices in increasing power transfer capability when the load is non-linear has not been established in a comparative study yet. This paper will explore the steady-state performance of the UPFC and TCSC as impedance compensation models. The effectiveness of both FACTS devices are investigated when they are installed in multi-machine systems with different non-linear load models. Simulation results demonstrate that, upon installing UPFC, more active and reactive powers are received at the sending end bus for different types of non-linear load models. In addition, both active and reactive powers are more sensitive in changing the modulation index of the converters. Furthermore, both the active and reactive powers are less sensitive to the non-linearity of the load model type. However, active and reactive powers in case of installing TCSC are only sensitive in changing the firing angle (α) when it is between 90º to 110º. Therefore, results from this study clearly encourage the effectiveness of UPFC in comparison to TSCS in terms of increasing power transfer capability applied to non-linear load models.
The two five-phase Induction Motor (IM) drive system that is serially connected is available in literature. The power supply of such system is considered as a matrix converter (a direct AC to AC converter system) by three and five-phases outputs. The main benefit from the drive topology is the sinusoidal source as a side current with a controllable input side power factor. The decoupled control is achieved similarly to the inverter based drive system. In this paper; the decoupled control of two five-phase induction machines serially connected and powered by a five-phase matrix converter as well as analytical and simulation results are presented.
A Novel Control Strategy of Indirect Matrix Converter Using Space Vector Modu...IJPEDS-IAES
This paper introduces a control scheme of Indirect Matrix Converter which includes space vector modulation to stabilize the frequency variations. The terminal voltage and frequency of any synchronous machine can be controlled easily with this scheme. Further the control strategy is proposed and implemented in Matlab/Simulink Embedded system which gives significant better performance compared to conventional control technique like better Total Harmonic Distortion (THD), more output voltage with same Modulation Index, less switching stress and less switching loss. This method might prove effective for wind energy conversion system using DFIG as the DFIG speed is close to synchronous speed. The complete control strategy is verified using MATLAB/Simulink.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
A hybrid algorithm for voltage stability enhancement of distribution systems IJECEIAES
This paper presents a hybrid algorithm by applying a hybrid firefly and particle swarm optimization algorithm (HFPSO) to determine the optimal sizing of distributed generation (DG) and distribution static compensator (D-STATCOM) device. A multi-objective function is employed to enhance the voltage stability, voltage profile, and minimize the total power loss of the radial distribution system (RDS). Firstly, the voltage stability index (VSI) is applied to locate the optimal location of DG and D-STATCOM respectively. Secondly, to overcome the sup-optimal operation of existing algorithms, the HFPSO algorithm is utilized to determine the optimal size of both DG and D-STATCOM. Verification of the proposed algorithm has achieved on the standard IEEE 33-bus and Iraqi 65-bus radial distribution systems through simulation using MATLAB. Comprehensive simulation results of four different cases show that the proposed HFPSO demonstrates significant improvements over other existing algorithms in supporting voltage stability and loss reduction in distribution networks. Furthermore, comparisons have achieved to demonstrate the superiority of HFPSO algorithms over other techniques due to its ability to determine the global optimum solution by easy way and speed converge feature.
State space vector based advanced direct power control of matrix converter as...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Matrix Converter based Direct Torque Control of Induction MotorNeehar NLN
This topic falls under the area of speed control of induction motor. The using of advanced power electronic converters provides better response. In this case, a AC/AC converter is used to control the induction motor.
Simulation of 3-phase matrix converter using space vector modulationIJECEIAES
This paper illustrates the simulation of 3-phase matrix converter using Space Vector Modulation (SVM). Variable AC output voltage engendered using matrix converter with bidirectional power switches controlled by appropriate switching pulse. The conventional PWM converter engenders switching common mode voltage across the load system terminals, which cause to common mode current and its leads to bearing failure in load drive. These problems can be rectified using SVM and which minimize the effect on the harmonic fluctuation in AC output voltage and stress on the power switch is reduced using bidirectional switch for proposed 3-phase matrix converter. The simulation results have been presented to validate the proposed system using matlab / simulink.
IOSR Journal of Electrical and Electronics Engineering(IOSR-JEEE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of electrical and electronics engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electrical and electronics engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
The paper describes the single stage AC-AC converter. This converter is a good alternative to quasi direct back to back converter. This single stage converter is called Matrix Converter. Matrix converter is an array of controlled semiconductor switches that connects three phase source to the three phase load. This converter provides bidirectional power flow, sinusoidal input and output waveforms and they have no dc link storage elements. Simulation model and results presented showing Venturini control method of matrix converter.
A Review of Matrix Converter and Novel Control Method of DC-AC Matrix Converteridescitation
For the past three decades, research work in matrix
converter has increased much. This paper presents a new
topology of DC-AC matrix converter, starting with a brief
historical review of different modulation and control strategies
which was developed recently. The purpose of the Paper is to
generate a multilevel output voltage equal to multilevel
inverter with reduced switches. An important part of the paper
is to design a dedicated DC-AC matrix converter and some
new arrays of bidirectional switches in a single module are
also presented. To find the performance of the module the
entire module is designed with MATLAB simulation and tested
with three phase induction motor.
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Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
In the proposed approach,instead of a conventional 3- Phase inverter a component minimized single pha se inverter is utilized which reduces the cost of the inverter,th e switching losses,and the complexity of interface circuits to generate logic signals. A performance comparison of the prop osed inverter fed drive with a conventional 3Phase inverter fed drive is also mode in terms of speed response and t otal harmonic distortion (THD) of the stator curren t. The proposed inverter fed IM drive is found acceptable consideri ng its cost reduction and other advantageous featur es. A general pulse width modulation (PWM) method for c ontrol of 1-phase inverters is presented. The vecto r PWM offers a simple method to select three or four vectors tha t effectively synthesize the desired output voltage,even in presence of voltage oscillations across the two dc-link capacit ors. The influence of different switching patterns on output voltage symmetry,current waveform,switching frequency and common mode voltage can be examined. The paper als o discusses how the use of the wye and delta connecti ons of the motor windings affects the implementatio n of the pulse width modulator.
Space Vector Modulation Based Direct Matrix Converter for Stand-Alone systemIJPEDS-IAES
In this paper Permanent Magnet Synchronous Generator (PMSG) is used for wind power generation in standalone system due to their feature of high efficiency and low maintenance cost, which was fed with smart direct matrix converter for direct AC-AC conversion, It provides sinusoidal output waveforms with minimal higher order harmonics and no sub harmonics and also it eliminate the usage of dc-link and other passive elements. Space vector modulation (SVM) controlled technique is used for matrix converter switching which can eliminate the switching loses by selected switching states. Proposed work is often seen as a future concept for variable speed drives technology. The proposed model for RL load was analysed and verified by varying the resistor and inductance value and analysed using MATLAB simulation.
This paper presents the verification of soft switching condition for three-phase AC to DC current injection hybrid resonant converter (CIHRC) with wireless power transfer (WPT) function. Details on the operation of current injection technique with the lossless zero voltage switching (ZVS) condition on shaping the high power factor of supply current waveforms are presented. With a suitable high switching frequency operation, the proposed resonant converter is capable to operate with ZVS conditions, thus, allowing reduction in the size of inductive and magnetic components. Selected results are also presented to verify the lossless ZVS condition for three-phase AC-DC CIHRC with WPT function.
Wind Energy Conversion System Using PMSG with T-Source Three Phase Matrix Con...IJTET Journal
This paper presents an analysis of a PMSG wind power system using T-Sourcethree phase matrix converter. PMSG using T-Source three phase matrix converterhas advantages that it can provide any desired AC output voltage regardless of DC input with regulation in shoot-through time. In this control system T-Source capacitor voltage can be kept stable with variations in the shoot-through time, maximum power from the wind turbine to be delivered. Inaddition, of a new future, the converter employs a safe-commutation strategy toconduct along a continuous current flow, which results in theelimination of voltage spikes on switches without the need for a snubber circuit. With the use of matrix converter the surely need forrectifier circuit and passive components to store energy arereduced. The MATLAB/Simulinkmodel of the overall system is carried out and theoretical wind energy conversion output load voltage calculations are madeand feasibility of the new topology has been verified and that theconverter can produce an output voltage and output current. This proposed method has greater efficiency and lower cost.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
In present days of electrical industries, adjustable speed controlled induction
motor drives are very common due to its versatile features. For the speed control of induction
motor, variable frequency sources are the heart of such drives. To attain variable frequency
and variable voltage supply a power electronics device; single phase matrix converter is
proposed.
In this paper, the single phase matrix converter is modeled in MATLAB Simulink
environment; controlled with sinusoidal pulse width modulation technique, control scheme is
implemented in a Xilinx system generator environment and interfaced with power circuit in
MATLAB Simulink. Analyses this SPMC with different type of loads in both frequency step
up and step down modes. Based on simulation results, this converter is suitable for variable
frequency power supplies, varying load conditions and variable speed electrical drives.
FPGA control is best suitable for controlling a circuit like SPMC, consists of more
controlled elements to attain fast operation.
New Dead-Time Compensation Method of Power Inverter Using Carrier Based Sinus...IJECEIAES
A new dead-time compensation method of power inverter circuits is suggested and presented in this paper. The proposed method utilizes carrier based sinusoidal pulse width modulation technique to produce driving signals of the inverter power switches with dead-time correction capability. The proposed method able to eliminate dead-time effects such as reducing the waveform distortion of the inverter output current, and increasing the fundamental component amplitude of output current. An analysis of the proposed method is presented. Some computer simulations were carried out to investigate the principle operation, and to test performance of the new method. The developed method was validated through experimental test of H-bridge voltage source inverter circuits. The data obtained from the computer simulation and prototype experiments have confirmed that that the proposed method worked well compensating the dead-time in the voltage source power inverter circuits.
Design of Three Phase Matrix Converter AC-AC Utility Power Supply using SPWM ...IJERA Editor
This paper describes the control analysis and design of an three phase matrix AC-AC utility power supply .The
SPWM modulation techniques is used to control the desired output voltage and gives the control output voltage
and reduced input harmonic distortions .In this Matrix converter Input is directly connected to output no DC
link components is required. Simulation had been done using mat lab simulink and Simulated results are
observed
Analysis of symmetrical & asymmetrical pwm based three phase ac to ac con...eSAT Journals
Abstract
A Three phase bidirectional AC to AC buck converter circuit using power MOSFET operating in high frequency chopping mode is simulated and analyzed for electrical parameters such as output phase voltage, input line current, input power factor, harmonic profile and efficiency using MATLAB/simulink software package. The various PWM techniques such as symmetrical ramp-DC PWM (SRDPWM), asymmetrical ramp-triangular PWM (ARTPWM), asymmetrical sinusoidal PWM type-1 [ASPWM1] and asymmetrical sinusoidal PWM type-2 [ASPWM2] techniques are adopted to analyze the harmonic profile, input power factor and efficiency of the converter. The rms value of the output phase voltage, output line current and source current can be significantly increased by varying the duty ratio K in case of symmetrical PWM control strategy and modulation index MI in case of asymmetrical PWM control strategies independent of variation in switching frequency. It is observed from the simulation results that the ASPWM1 switching strategy gives more output phase voltage, input power factor, efficiency by increasing modulation index MI and reduced low order harmonics of output voltage and source current by increasing the number of pulses per half cycle P compared to other PWM techniques rendering easy and economical filteration.
Keywords: Three phase AC chopper, symmetrical ramp-DC PWM, asymmetrical ramp-triangular PWM, asymmetrical sinusoidal PWM technique, harmonic profile, power factor, efficiency
Analysis of symmetrical & asymmetrical pwm based three phase ac to ac con...eSAT Journals
Abstract
A Three phase bidirectional AC to AC buck converter circuit using power MOSFET operating in high frequency chopping mode is simulated and analyzed for electrical parameters such as output phase voltage, input line current, input power factor, harmonic profile and efficiency using MATLAB/simulink software package. The various PWM techniques such as symmetrical ramp-DC PWM (SRDPWM), asymmetrical ramp-triangular PWM (ARTPWM), asymmetrical sinusoidal PWM type-1 [ASPWM1] and asymmetrical sinusoidal PWM type-2 [ASPWM2] techniques are adopted to analyze the harmonic profile, input power factor and efficiency of the converter. The rms value of the output phase voltage, output line current and source current can be significantly increased by varying the duty ratio K in case of symmetrical PWM control strategy and modulation index MI in case of asymmetrical PWM control strategies independent of variation in switching frequency. It is observed from the simulation results that the ASPWM1 switching strategy gives more output phase voltage, input power factor, efficiency by increasing modulation index MI and reduced low order harmonics of output voltage and source current by increasing the number of pulses per half cycle P compared to other PWM techniques rendering easy and economical filteration.
Keywords: Three phase AC chopper, symmetrical ramp-DC PWM, asymmetrical ramp-triangular PWM, asymmetrical sinusoidal PWM technique, harmonic profile, power factor, efficiency
Voltage and frequency control of microgrid in presence of micro-turbine inter...IJECEIAES
The active and reactive load changes have a significant impact on voltage
and frequency. In this paper, in order to stabilize the microgrid (MG) against
load variations in islanding mode, the active and reactive power of all
distributed generators (DGs), including energy storage (battery), diesel
generator, and micro-turbine, are controlled. The micro-turbine generator is
connected to MG through a three-phase to three-phase matrix converter, and
the droop control method is applied for controlling the voltage and
frequency of MG. In addition, a method is introduced for voltage and
frequency control of micro-turbines in the transition state from gridconnected mode to islanding mode. A novel switching strategy of the matrix
converter is used for converting the high-frequency output voltage of the
micro-turbine to the grid-side frequency of the utility system. Moreover,
using the switching strategy, the low-order harmonics in the output current
and voltage are not produced, and consequently, the size of the output filter
would be reduced. In fact, the suggested control strategy is load-independent
and has no frequency conversion restrictions. The proposed approach for
voltage and frequency regulation demonstrates exceptional performance and
favorable response across various load alteration scenarios. The suggested
strategy is examined in several scenarios in the MG test systems, and the
simulation results are addressed.
A Review on Performance Analysis of Matrix Converter Fed AC Motor DriveIAES-IJPEDS
This paper presents a review on the analysis of characteristics that determines
the performance of the Matrix Converter (MC) fed AC motor drive. Review
is made based on the analysis of the different characteristics achieved in the
literature. Different characteristic parameters considered in this paper are
total harmonic distortion, common mode voltage, voltage transfer ratio and
efficiency. Comparison and analysis of these characteristic parameters is
done based on various semi conductor switches, topology, and control and modulation techniques.
Similar to Simulation of 3 Phase to 3 Phase Power Conversion Using Matrix Converter with Maximum and Minimum Voltage Transfer Ratio (20)
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
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COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
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Simulation of 3 Phase to 3 Phase Power Conversion Using Matrix Converter with Maximum and Minimum Voltage Transfer Ratio
1. B.Muthuvel Int. Journal of Engineering Research and Applications www.ijera.com
ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
www.ijera.com 96 | P a g e
Simulation of 3 Phase to 3 Phase Power Conversion Using Matrix
Converter with Maximum and Minimum Voltage Transfer Ratio
B. Muthuvel*, T. S. Anandhi**, P.Sivagnanam***, K.Ramash kumar
*(Department of EEE, AKT Memorial College of Engineering and Technology, Kallakurichi)
**(Department of Electronics and Instrumentation Engineering, Annamalai University, Chidambaram.)
***(Principal, Krishnasamy College of Engineering and Technology, Kumarapuram, Cuddalore)
****(Department of EEE, Dr.S.J.S.Paul Memorial College of Engineering and Technology, Puducherry)
ABSTRACT
This paper proposes a new approach of design and implementation of 3 phase to 3 phase conversion using
matrix converter. It includes the design, modeling and implementation. The entire matrix converter circuits are
developed by mathematical model so as to reduce computational time and performances of the converter are
evaluated using MATLAB/SIMULINK for RL Load. The mathematical expressions relating the input and
output of the three phase matrix converter are implemented by using simulink block set. The duty cycles of the
matrix converter bidirectional switches are calculated using modified venturini algorithm for maximum (0.866)
and minimum (0.5) voltage transfer ratio.
Keywords - 3 phase to 3 phase converter, AC to AC converter, Matrix converter, Multi-phase converter, Power
converter.
I. INTRODUCTION
A matrix converter is an ac/ac converter that can
directly convert an ac power supply voltage into an
ac voltage of variable amplitude and frequency. It
has high power quality and it is fully regenerative.
Due to the increasing importance of power quality
and energy efficiency issues, the Matrix converter
technology has recently attracted the power
electronics industry. Direct ac/ac converters have
been studied in an attempt to realize high efficiencies,
long lifetime, size reduction, and unity power factors.
The benefits of using direct ac/ac converters are even
greater for medium voltage converters as direct ac/ac
converters do not require electrolytic capacitors,
which account for most of the volume and cost of
medium-voltage converters.
Due to the absence of energy storage elements,
Matrix converter has higher power density than
PWM inverter drives. However, for the same reason,
the ac line side disturbances can degrade its
performance and reliability. Therefore the matrix
converter drive performance under abnormal input
voltage conditions were introduced [1].Timing errors
in the switching between the series-connected
switches cause a voltage imbalance in the snubber
circuit and increase voltage stress. A new
bidirectional switch with regenerative snubber to
realize simple series connection for matrix converters
was proposed [2]. Forced commutations of the high
number of semiconductors cause switching losses
that reduce the efficiency of the system and imply the
use of large heat sinks. Hence a predictive approach
to increase efficiency and reduce switching losses on
matrix converter was presented [3].Classical
modulation techniques are not applicable because of
the needed high output frequencies. Hence
Bidirectional switch commutation for a Matrix
converter supplying a series resonant load was
developed [4]. New investigations to develop
appropriate digital carrier modulation schemes for
controlling conventional and indirect matrix
converter with minimized semiconductor
commutation count [5].
A single-phase Z-source Buck-Boost matrix
converter which can buck and boost with step-
changed frequency, and both the frequency and
voltage can be stepped up or stepped down was
developed [6]. A matrix converter has the potential to
offer improved operational performance by
evaluating its design and potential operating
performance in a marine electric propulsion system
[7]. A fault-tolerant matrix converter with
reconfigurable and modified switch control schemes,
along with a fault diagnosis technique for open-
circuited switch failure were proposed [8]. A new
control method for a matrix converter based
induction machine drive ware introduced. A discrete
model of the converter, Motor, and input filter is to
predictive the behavior of torque, flux, and input
power to the drive [9].
For various industrial adjustable speed ac drives
and applications, various analysis and mathematical
model is introduced in matrix converter. By varying
the Modulation Index (MI), the outputs of the matrix
converter are controlled and in ac drives, speeds of
the drive were controlled. To reduce the
RESEARCH ARTICLE OPEN ACCESS
2. B.Muthuvel Int. Journal of Engineering Research and Applications www.ijera.com
ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
www.ijera.com 97 | P a g e
computational time and low memory requirement, a
mathematical model has been developed [10]-[16].
In this paper, the converter are designed and
implemented for the 3 phase to 3 phase matrix
converter in open loop configuration and the power
circuit in open loop are implemented by the
mathematical modeling. The duty cycle calculation is
taken into account for Maximum (0.866) and
minimum (0.5) voltage transfer ratios and the
mathematical model is realized with the RL load. The
entire power circuit is modeled with
MATLAB/SIMULINK. Implementation of converter
in mathematical modeling includes the modeling of
power circuit, Control algorithm, and load. Merits of
Mathematical model over conventional power circuit
are less computation time and low memory
requirement. The proposed model is very simple,
flexible and can be accommodated with any type of
load. Fig. 1 refers the Basic block diagram of the
proposed 3pase to 3 phase Matrix converter.
Fig.1. Basic block diagram of 3pase to 3 phase
Matrix converter.
II. MATRIX CONVERTER
The Matrix converter (MC) is a single stage
direct ac to ac converter, which has an array of m x n
bi-directional switches that can directly connect m
phase voltage source into n phase load. A 3 phase
matrix converter consists of 3x3 switches arranged in
matrix form. The arrangement of bi-directional
switches is such that any of the input phases R,Y,B is
connected to any of the output phases r,y,b at any
instant. The average output voltage with desired
frequency and amplitude can be controlled by the bi-
directional switches. The bi-directional 3x3 switches
(29
) gives 512 combinations of the switching states.
But only 27 switching combinations are allowed to
produce the output line voltages and input phase
currents. The desirable characteristics of a Matrix
converter are as follows:
Sinusoidal input and output waveforms with
minimal higher order harmonics and no
subharmonics;
Minimal energy storage requirements
Controllable input power factor
Bidirectional energy flow capability
Compact design
Long life due to absence of a bulky electrolytic
capacitor
Unity input power factor at the power supply
side
Fig.2. circuit scheme of 3 phase to 3 phase matrix
converter
Limitations of Matrix converter are
The voltage transfer ratio limitation has a
maximum value of 0.866
Sensitive to the power source distortion due to
the direct connection between input and output
sides.
Input filter is needed in order to eliminate the
harmonic components of the input current and reduce
the input voltage distortion supplied to the Matrix
Converter as shown in fig.2.
III. CONTROL ALGORITHM
When 3 phase to 3 phase converter operated
with9 bi-directional switches, the following two basic
rules have to be satisfied [10].
Two or three input lines should not be
connected to the same output line – to avoid
short circuit
At least one of the switches in each phase
should be connected to the output – to avoid
open circuit.
The switching function of single switch as
SKj = {
1, switch SKj closed
0, switch SKj opened
(1)
Where, K = {r, y, b), j = {R, Y, B}
The above constraints can be expressed by
Srj + Syj + Sbj = 1, j = {R, Y, B} (2)
With these restrictions, the 3 x 3 matrix converter has
27 possible switching states.
The input or source voltage vector of the 3 phase to 3
phase Matrix converter is
Vi =
𝑉𝑅
𝑉𝑌
𝑉𝐵
=
𝑉𝑖𝑚 cos(𝜔𝑖 𝑡)
𝑉𝑖𝑚 cos(𝜔𝑖 𝑡 +
2𝜋
3
)
𝑉𝑖𝑚 cos(𝜔𝑖 𝑡 +
4𝜋
3
)
(3)
3 Phase
Input
Power
Circuit of
Matrix
ConverterSwitching or
control
Algorithm
Load
3. B.Muthuvel Int. Journal of Engineering Research and Applications www.ijera.com
ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
www.ijera.com 98 | P a g e
The output voltage vector of the 3 phase to 3 phase
Matrix converter is
Vo =
𝑉𝑟
𝑉𝑦
𝑉𝑏
=
𝑉𝑜𝑚 cos(𝜔𝑜 𝑡)
𝑉𝑜𝑚 cos(𝜔𝑜 𝑡 +
2𝜋
3
)
𝑉𝑜𝑚 cos(𝜔𝑜 𝑡 +
4𝜋
3
)
(4)
The input or source current vector of the 3 phase to 3
phase Matrix converter is
Ii =
𝐼 𝑅
𝐼𝑌
𝐼 𝐵
=
𝐼𝑖𝑚 cos(𝜔𝑖 𝑡)
𝐼𝑖𝑚 cos(𝜔𝑖 𝑡 +
2𝜋
3
)
𝐼𝑖𝑚 cos(𝜔𝑖 𝑡 +
4𝜋
3
)
(5)
The output current vector of the 3 phase to 3 phase
Matrix converter is
Io =
𝐼𝑟
𝐼𝑦
𝐼𝑏
=
𝐼𝑜𝑚 cos(𝜔𝑜 𝑡)
𝐼𝑜𝑚 cos(𝜔𝑜 𝑡 +
2𝜋
3
)
𝐼𝑜𝑚 cos(𝜔𝑜 𝑡 +
4𝜋
3
)
(6)
Where, 𝜔𝑖 - frequency of input voltage and
𝜔𝑜 - frequency of output voltage
The relationship between output and input voltage is
given as
𝑉𝑜 (t) = M (t). 𝑉𝑖(t) (7)
Where 𝑀𝑡 is the transfer Matrix and is given by
M (t) =
𝑀 𝑅𝑟 𝑀 𝑌𝑟 𝑀 𝐵𝑟
𝑀 𝑅𝑦 𝑀 𝑌𝑦 𝑀 𝐵𝑦
𝑀 𝑅𝑏 𝑀 𝑌𝑏 𝑀 𝐵𝑏
(8)
where, MRr = tRr / Ts, duty cycle switch SRr, Ts is the
sampling period. The input current is given by
I in = MT
Io (9)
Duty cycle must satisfy the following condition in
order to avoid short circuit on the input side.
𝑀 𝑅𝑟 + 𝑀 𝑌𝑟 + 𝑀 𝐵𝑟 = 1 (10)
𝑀 𝑅𝑦 + 𝑀 𝑌𝑦 + 𝑀 𝐵𝑦 = 1 (11)
𝑀 𝑅𝑏 + 𝑀 𝑌𝑏 + 𝑀 𝐵𝑏 = 1 (12)
The above condition is fulfilled by calculation of
duty cycle using modified venturini algorithm.
In venturini switching algorithm, the maximum
voltage transfer ratio is restricted to 0.5.This limit can
be overcome by using modified venturini algorithm
[16]. The maximum possible output voltage can be
achieved by injecting third harmonics of the input
and output frequencies into the output waveform
[11]. This will increase the available output voltage
range to 0.75 of the input when third harmonics has a
peak value of Vi/4. Further increasing of the transfer
ratio can be achieved by subtracting a third harmonic
at the output frequency from all target output
voltages. Hence the maximum transfer ratio of
0.75/0.866 = 0.866 of Vi when this third harmonic
has a peak value of Vo/6.Therefore the output voltage
becomes
𝑉𝑜𝛾 =𝑞𝑉𝑖𝑚 𝑐𝑜𝑠(𝜔𝑜 𝑡 + 𝜓𝛾 )–
𝑞
6
𝑉𝑖𝑚 𝑐𝑜𝑠(3𝜔𝑜 𝑡)+
1
4𝑞 𝑚
𝑉𝑖𝑚 (3𝜔𝑖 𝑡) (13)
Where, 𝜓𝛾 = 0, 2π/3, 4π/3 corresponding to the output
phase r, y, b [11], [15], [16].
IV. DESIGNING OF MATRIX
CONVERTER
The actual MATLAB/SIMULINK model of 3
phase to 3 phase Matrix converter is shown in fig.3. it
comprises normally 3 sections.
4.1 Designing of Control Algorithm
Fig.3. Mathematical Designing of 3 phase to 3 phase
Matrix converter.
The required voltage transfer ratio (q), output
frequency (fo) and switching frequency (fs) are the
inputs required for calculation of duty cycle matrix
M. the duty cycle calculations for voltage transfer
ratio of 0.5 and 0.866 are realized in the form of m-
file in Matlab.
Duty cycles for 0.5 & 0.866 voltage transfer ratio are;
𝑀 𝑅𝑟 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃)) (14)
𝑀 𝑌𝑟 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃 −
2𝜋
3
)) (15)
𝑀 𝐵𝑟 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃 −
4𝜋
3
)) (16)
𝑀 𝑅𝑦 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃 −
4𝜋
3
)) (17)
𝑀 𝑌𝑦 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃)) (18)
𝑀 𝐵𝑦 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃 −
2𝜋
3
)) (19)
𝑀 𝑅𝑏 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃 −
2𝜋
3
)) (20)
𝑀 𝑌𝑏 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃 −
4𝜋
3
)) (21)
𝑀 𝐵𝑏 =
1
3
(1 + 2𝑞 𝑐𝑜𝑠(𝜔 𝑚 𝑡 + 𝜃)) (22)
Where, 𝜔 𝑚 = 𝜔𝑜 − 𝜔𝑖 = modulation frequency
θ = relative phase of output, q =voltage transfer ratio
Switching time for voltage transfer ratio of 0.866 are;
4. B.Muthuvel Int. Journal of Engineering Research and Applications www.ijera.com
ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
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𝑇𝛽𝛾 =
𝑇𝑠
3
1 +
2𝑉𝑜 𝛾 𝑉 𝑖𝛽
𝑉𝑖𝑚
2 +
2 𝑞
3𝑞 𝑚
sin 𝜔𝑖 𝑡 + 𝜓 𝛽 sin(3𝜔𝑖 𝑡)
(23)
where, 𝜓 𝛽 = 0, 2π/3, 4π/3 corresponding to the input
phases R,Y,B, 𝑞 𝑚 = maximum voltage transfer ratio,
q = required voltage ratio, 𝑉𝑖𝑚 =input voltage vector
magnitude, 𝑇𝑠 = sampling period.
4.2 Designing of power circuit
The modeling of power circuit is derived from
basic output voltage equations [17], [18].
𝑉𝑟 (t) = 𝑀 𝑅𝑟 𝑉𝑅(t) + 𝑀 𝑌𝑟 𝑉𝑌(t) + 𝑀 𝐵𝑟 𝑉𝐵(t) (24)
𝑉𝑦 (t) = 𝑀 𝑅𝑦 𝑉𝑅(t) + 𝑀 𝑌𝑦 𝑉𝑌(t) + 𝑀 𝐵𝑦 𝑉𝐵(t) (25)
𝑉𝑏 (t) = 𝑀 𝑅𝑏 𝑉𝑅(t) + 𝑀 𝑌𝑏 𝑉𝑌(t) + 𝑀 𝐵𝑏 𝑉𝐵(t) (26)
Fig.4 shows the realization of modeling block of
power circuit of „r‟ phase in 3 phase to 3 phase
Matrix converter. The switching pulses for the bi-
directional switches are realized by comparing the
duty cycles with a saw tooth waveform having very
high switching frequency
Fig.4. Designing block of power circuit of „r‟ phase
in 3 phase to 3 phase Matrix converter.
4.3 Designing of Load
The transfer function of mathematical modeling
of RL load is
𝐼(𝑆)
𝑉(𝑆)
=
1
𝐿𝑠+𝑅
(27)
V. SIMULATION RESULTS AND
DISCUSSION
The simulation of 3 phase to 3 phase Matrix
converter for open loop are carried out using
simulink blockset.
5.1. Simulation output of 3 phase to 3 phase
Matrix converter for Maximum Modulation Index
(0.866)
Simulations are performed for maximum voltage
transfer ratio „q‟ = 0.0.866 (Duty cycle), Amplitude
=325.26V and time limit is 0.1 m.Sec. The output is
realized with 3 phase passive RL load for R= 10 Ω
and L= 20 mH. Fig 9-11 shows the results of control
waveform for all the 9 Bi-directional Switches from
„SRr‟ to „SBb
‟
(MRr to MBb) with the maximum voltage
transfer ratio „q‟ =0.866. Fig.12. shows the Input
waveform for „q‟=0.866 and Amplitude =325.26V
related to „r‟ Phase. The Output Voltage and current
waveforms in „r‟ Phase for „q‟=0.866 as shown in
Fig.13&14. The Output Voltage and current
waveforms in „y‟ Phase for „q‟=0.866 as shown in
Fig.15&16. The Output Voltage and current
waveforms in „b‟ Phase for „q‟=0.866 as shown in
Fig.17&18. Fig.19 shows the Simulation waveform
for Voltage Transfer ratio of „q‟=0.866. Fig.20.
shows the Simulation waveform for „THD‟ in „r‟
Phase. Fig.21. shows the Average Output Voltage
waveform for 3 phase to 3 phase Matrix converter
(for „r‟, „y‟, „b‟ Phases). Similarly, Fig.22 shows the
Output Current waveform for 3 phase to 3 phase
Matrix converter (for „r‟, „y‟, „b‟ Phases). The
average output voltage is =325.26V and the average
output current is 24.8 Amps.
Fig.9. Duty cycle „q‟=0.866 for MRr, MYr, MBr Phase.
Fig.10. Duty cycle „q‟=0.866 for MYy,MRy,MBy Phase.
Fig.11. Duty cycle „q‟=0.866 for MRb,MYb,MBb Phase.
Fig.12. Input waveform for „q‟=0.866 and Amplitude
=325.26V in „r‟ Phase
Fig.13. Output Voltage waveform for „q‟=0.866 in „r‟
Phase.
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MRr
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MYr
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MBr
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MRy
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MYy
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MBy
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MRb
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MYb
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
Time in m.Sec
AmplitudeinVolts
MBb
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-300
-200
-100
0
100
200
300
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-300
-200
-100
0
100
200
300
400
Time in m.Sec
AmplitudeinVolts
5. B.Muthuvel Int. Journal of Engineering Research and Applications www.ijera.com
ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
www.ijera.com 100 | P a g e
Fig.14. Output current waveform for „q‟=0.866 in „r‟
Phase.
Fig.15. Output Voltage waveform for „q‟=0.866 in
„y‟ Phase.
Fig.16. Output current waveform for „q‟=0.866 in „y‟
Phase
Fig.17. Output Voltage waveform for „q‟=0.866 in
„b‟ Phase.
Fig.18. Output current waveform for „q‟=0.866 in „b‟
Phase.
Fig.19. Simulation waveform for Voltage Transfer
ratio „q‟=0.866.
Fig.20. Simulation waveform for „THD‟ in „r‟ Phase.
Fig.21. Output Voltage waveform for 3 phase to 3
phase Matrix converter („r‟, „y‟, „b‟ Phases)
Fig.22. Output Current waveform for 3 phase to 3
phase Matrix converter („r‟, „y‟, „b‟ Phases)
5.2. Simulation output of 3 phase to 3 phase
Matrix converter for Minimum Modulation Index
(0.5)
Simulations are performed for minimum voltage
transfer ratio „q‟ = 0.5 (Duty cycle), Amplitude
=325.26V and time limit is 0.1 m.Sec. The output is
realized with 3 phase passive RL load for R= 10 Ω
and L= 20 mH. Fig 23-25 shows the results of control
waveform for all the 9 Bi-directional Switches from
„SRr‟ to „SBb
‟
(MRr to MBb) with the minimum voltage
transfer ratio „q‟ =0.5. Fig.126. shows the Input
waveform for „q‟=0.5 and Amplitude =325.26V
related to „r‟ Phase. The Output Voltage and current
waveforms in „r‟ Phase for „q‟=0.5 as shown in
Fig.27&28. The Output Voltage and current
waveforms in „y‟ Phase for „q‟=0.5 as shown in
Fig.29&30. The Output Voltage and current
waveforms in „b‟ Phase for „q‟=0.5 as shown in
Fig.31&32. Fig.33 shows the Simulation waveform
for Voltage Transfer ratio of „q‟=0.5. Fig.34. shows
the Simulation waveform for „THD‟ in „r‟ Phase.
Fig.35. shows the Average Output Voltage waveform
for 3 phase to 3 phase Matrix converter (for „r‟, „y‟,
„b‟ Phases). Similarly, Fig.36 shows the Output
Current waveform for 3 phase to 3 phase Matrix
converter (for „r‟, „y‟, „b‟ Phases). The average
output voltage is =325.26V and the average output
current is 7.955 Amps.
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-30
-20
-10
0
10
20
30
Time in m.Sec
CurrentinAmps
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-300
-200
-100
0
100
200
300
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-30
-20
-10
0
10
20
30
Time in m.Sec
CurrentinAmps
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-300
-200
-100
0
100
200
300
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-30
-20
-10
0
10
20
30
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.5
0
0.5
1
1.5
2
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5
x 10
15
Time in m.Sec
MagnitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-300
-200
-100
0
100
200
300
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-40
-30
-20
-10
0
10
20
30
Time in m.Sec
CurrentinAmps
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ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
www.ijera.com 101 | P a g e
Fig.23. Duty cycle „q‟=0.5 for MRr, MYr, MBr Phase
Fig.24. Duty cycle „q‟=0.5 for MYy, MRy, MByPhase
Fig.25. Duty cycle „q‟=0.5 for MRb, MYb, MBb Phase.
Fig.26. Input waveform for „q‟=0.5and Amplitude
=325.26 V in „r‟ Phase
Fig.27. Output Voltage waveform for „q‟=0.5 in „r‟
Phase.
Fig.28. Output current waveform for „q‟=0.5 in „r‟
Phase
Fig.29. Output Voltage waveform for „q‟=0.5 in „y‟
Phase.
Fig.30. Output current waveform for „q‟=0.5 in „y‟
Phase
Fig.31. Output Voltage waveform for „q‟=0.5 in „b‟
Phase
Fig.32. Output current waveform for „q‟=0.5 in „b‟
Phase.
Fig.33. Simulation waveform for Voltage Transfer
ratio „q‟=0.5
Fig.34. Simulation waveform for „THD‟ in „r‟ Phase
Fig.35. Output Voltage waveform for 3 phase to 3
phase Matrix converter („r‟, „y‟, „b‟ Phases)
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.2
0
0.2
0.4
0.6
0.8
Timeinm.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-300
-200
-100
0
100
200
300
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-200
0
200
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-30
-20
-10
0
10
20
Time in m.Sec
CurrentinAmps
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-200
0
200
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-30
-20
-10
0
10
20
Time in m.Sec
CurrentinAmps
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-200
0
200
400
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-30
-20
-10
0
10
20
30
Time in m.Sec
CurrentinAmps
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-0.5
0
0.5
1
1.5
Time in m.Sec
AmplitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-2
-1
0
1
2
3
4
5
x 10
16
Time in m.Sec
MagnitudeinVolts
0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1
-400
-200
0
200
400
Time in m.Sec
AmplitudeinVolts
7. B.Muthuvel Int. Journal of Engineering Research and Applications www.ijera.com
ISSN: 2248-9622, Vol. 5, Issue 11, (Part - 2) November 2015, pp.96-103
www.ijera.com 102 | P a g e
Fig.36. Output Current waveform for 3 phase to 3
phase Matrix converter („r‟, „y‟, „b‟ Phases)
TABLE-1 Output current for different MI
Modulation
Index MI (q)
Average
Output
Current
Average
Output
Voltage
Type
of
Load
0.50 7.955 325.26
RL
Load
0.575 12.03 325.26
0.65 17.79 325.26
0.70 19.64 325.26
0.75 21.65 325.26
0.80 23.17 325.26
0.866 24.80 325.26
As a result, by increasing Modulation Index will
increases the average output current without change
in average output voltage as shown in TABLE-1.
Also the average output current will increases by
increasing the value of load resistance. Similarly, the
output current increases by decreasing the value of
load Inductance
VI. CONCLUSION
A simulation design and implementation of 3
phase to 3 phase Matrix converter has been presented
in this paper. A mathematical model is developed for
open loop Matrix converter using
MATLAB/Simulink so as to achieve less
computational time. The output was realized by RL
load and the simulation results are taken for
maximum and minimum voltage transfer ratio. The
simulation output results are satisfactory and the
future extension of this paper is possible for closed
loop configuration with various controllers and three
phase to „n‟ phase Matrix converter with various
passive loads and different voltage transfer ratio.
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