The space vector PWM has the character of wide linear range, little higher harmonic and easy digital
realization. The FOC theory and SVPWM technique make the PMSM can achieve the performance as well as
DC motor. The mathematical model of PMSM is analyzed and the system model of FOC vector control has
been established. The control system has been also simulated by MATLAB/Simulink. The simulation results
accord with the real motor’s performance and provide the theory basis for the designing of real system.
Permanent Magnet Synchronous motor (PMSM) or Permanent Magnet AC motor:
Introduction to PMSM motor.
Types of PMSM Motor.
Mathematical modelling of PMSM motor.
Advantages and dis Advantages of PMSM motor
This ppt shows the modelling and simulation of permanent magnet synchronous motor by using torque control method.
And this is the most advanced and soffestigated method to control the pmsm motors.
Speed Control of DC Motor using PID FUZZY Controller.Binod kafle
speed control of separately excited dc motor using fuzzy PID controller(FLC).In this research, speed of separately excited DC motor is controlled at 1500 RPM using two approaches i.e. PSO PID and fuzzy logic based PID controller. A mathematical model of system is needed for PSO PID while knowledge based rules obtained via experiment required for fuzzy PID controller . The conventional PID controller parameters are obtained using PSO optimization technique. The simulation is performed using the in-built toolbox from MATLAB and output response are analyzed. The tuning of fuzzy PID uses simple approach based on the rules proposed and membership function of the fuzzy variables. Design specification of fuzzy logic controller (FLC) requires fuzzification, rule list and defuzzification process. The FLC has two input and three output. Inputs are the speed error and rate of change in speed error. The corresponding outputs are Kp, Ki and Kd. There are 25 fuzzy based rule list. FLC uses mamdani system which employs fuzzy sets in consequent part. The obtained result is compared on the basis of rise time, peak time, settling time, overshoot and steady state error. PSO PID controller has fast response but slightly greater overshoot whereas fuzzy PID controller has sluggish response but low overshoot. The selection can be done on the basis of system properties and working environment conditions. PSO PID can be used where the response desired is fast like robotics where as fuzzy PID can be used where desired operation is smooth like industries.
Permanent Magnet Synchronous motor (PMSM) or Permanent Magnet AC motor:
Introduction to PMSM motor.
Types of PMSM Motor.
Mathematical modelling of PMSM motor.
Advantages and dis Advantages of PMSM motor
This ppt shows the modelling and simulation of permanent magnet synchronous motor by using torque control method.
And this is the most advanced and soffestigated method to control the pmsm motors.
Speed Control of DC Motor using PID FUZZY Controller.Binod kafle
speed control of separately excited dc motor using fuzzy PID controller(FLC).In this research, speed of separately excited DC motor is controlled at 1500 RPM using two approaches i.e. PSO PID and fuzzy logic based PID controller. A mathematical model of system is needed for PSO PID while knowledge based rules obtained via experiment required for fuzzy PID controller . The conventional PID controller parameters are obtained using PSO optimization technique. The simulation is performed using the in-built toolbox from MATLAB and output response are analyzed. The tuning of fuzzy PID uses simple approach based on the rules proposed and membership function of the fuzzy variables. Design specification of fuzzy logic controller (FLC) requires fuzzification, rule list and defuzzification process. The FLC has two input and three output. Inputs are the speed error and rate of change in speed error. The corresponding outputs are Kp, Ki and Kd. There are 25 fuzzy based rule list. FLC uses mamdani system which employs fuzzy sets in consequent part. The obtained result is compared on the basis of rise time, peak time, settling time, overshoot and steady state error. PSO PID controller has fast response but slightly greater overshoot whereas fuzzy PID controller has sluggish response but low overshoot. The selection can be done on the basis of system properties and working environment conditions. PSO PID can be used where the response desired is fast like robotics where as fuzzy PID can be used where desired operation is smooth like industries.
Interior Permanent Magnet (IPM) motor driveanusheel nahar
IPM is an interior Permanent magnet with self sensing and gets efficiency comparable to PMSM at much lower cost. Sensorless Vector control of IPM ensures better performance at low speeds, smoother operation, and position control possible.
BLDC motors are used widely due to various advantages.
This slide includes construction, working, modes of operation and braking, and applications. We also compare it with Brushed DC motor and Induction Motor.
Stepper Motor Types, Advantages And Applicationselprocus
A stepper motor is an electromechanical device which converts electrical pulses into discrete mechanical movements. The shaft or spindle of a stepper motor rotates in discrete step increments when electrical command pulses are
applied to it in the proper sequence. The motors rotation has several direct relationships to these applied input pulses. The sequence of the applied pulses is directly related to the direction of motor shafts rotation. The speed of the
motor shafts rotation is directly related to the frequency of the input pulses and the length of rotation is directly related to the number of input pulses applied.
DC motor and open loop speed control.
Closed loop speed control of DC drives.
Closed loop speed control with inner loop current control
Closed loop field control
Closed loop armature control.
Design and Analysis of PID and Fuzzy-PID Controller for Voltage Control of DC...Francisco Gonzalez-Longatt
DC microgrids are desired to provide the electricity for the remote areas which are far from the main grid. The microgrid creates the open horizontal environment to interconnect the distributed generation especially photovoltaic (PV). The stochastic nature of the PV output power introduces the large fluctuations of the power and voltage in the microgrid and forced to introduce the controller for voltage stability. There are many control strategies to control the voltage of a DC microgrid in the literature. In this paper the proportional-integral-derivative (PID) and fuzzy logic PID (FL-PID) controller has been designed and compared in term of performance. Performance measures like maximum overshoot and settling time of FL-PID compared with the PID proved that the former is better controller. The controllers are designed and simulated in the MATLAB programming environment. The controllers has been tested for the real time data obtained from Pecan Street Project, University of Texas at Austin USA.
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.
Interior Permanent Magnet (IPM) motor driveanusheel nahar
IPM is an interior Permanent magnet with self sensing and gets efficiency comparable to PMSM at much lower cost. Sensorless Vector control of IPM ensures better performance at low speeds, smoother operation, and position control possible.
BLDC motors are used widely due to various advantages.
This slide includes construction, working, modes of operation and braking, and applications. We also compare it with Brushed DC motor and Induction Motor.
Stepper Motor Types, Advantages And Applicationselprocus
A stepper motor is an electromechanical device which converts electrical pulses into discrete mechanical movements. The shaft or spindle of a stepper motor rotates in discrete step increments when electrical command pulses are
applied to it in the proper sequence. The motors rotation has several direct relationships to these applied input pulses. The sequence of the applied pulses is directly related to the direction of motor shafts rotation. The speed of the
motor shafts rotation is directly related to the frequency of the input pulses and the length of rotation is directly related to the number of input pulses applied.
DC motor and open loop speed control.
Closed loop speed control of DC drives.
Closed loop speed control with inner loop current control
Closed loop field control
Closed loop armature control.
Design and Analysis of PID and Fuzzy-PID Controller for Voltage Control of DC...Francisco Gonzalez-Longatt
DC microgrids are desired to provide the electricity for the remote areas which are far from the main grid. The microgrid creates the open horizontal environment to interconnect the distributed generation especially photovoltaic (PV). The stochastic nature of the PV output power introduces the large fluctuations of the power and voltage in the microgrid and forced to introduce the controller for voltage stability. There are many control strategies to control the voltage of a DC microgrid in the literature. In this paper the proportional-integral-derivative (PID) and fuzzy logic PID (FL-PID) controller has been designed and compared in term of performance. Performance measures like maximum overshoot and settling time of FL-PID compared with the PID proved that the former is better controller. The controllers are designed and simulated in the MATLAB programming environment. The controllers has been tested for the real time data obtained from Pecan Street Project, University of Texas at Austin USA.
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.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
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.
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.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
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.
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.
Comparative Study of the Success of PI and PI-Fuzzy Controller for Induction ...inventionjournals
Asynchronous motors have a wide range of applications in the industry.Therefore, speed control of asynchronous motors is of great importance.Speed control of asynchronous motors based on vector control techniques to achieve high performance.The vector control technique, motor flux and moment variables can be controlled independently of each other.Because of the nonlinear and complex model of asynchronous motors, the speed control applications of these motors are not provided with great efficiency by classical control methods.Fuzzy logic controllers (FLC), which were successful in many areas, present great performance in speed control of an asynchronous motor.In this study, a simulation study regarding speed control of a threephase squirrel cage asynchronous motor was carried out with a PI-Fuzzy type FLC and a conventional PI type controller.The data obtained by simulation are evaluated and the performances of the control methods are compared.
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.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
This paper presents new modified space vector pulse width modulation techniques (Phase disposition-Space vector pulse width modulation, Alternative Phase Opposition disposition- Space vector pulse width modulation and Phase Opposition disposition-Space vector pulse width modulation) are analyzed for three-phase cascaded multi-level inverter fed induction motor from the point of view of the Phase voltages, line voltage, stator current,speed,torque and Total harmonic distortion.in the proposed modified technique the reference signals are generated by adding offset voltage to the reference phase voltages.This modified SVPWM technique does not involve region indentification,sector identification for switching vector determination as are required in the conventional multi level SVPWM technique,it is also reduces the computation time compared to the conventional space vector PWM technique.The necessary calculations for generation of new modified SVPWM for the modulation strategies have presented in detail. It is observed that the modified SVPWM modulation ensures excellent, close to optimized pulse distribution results and THD is compared to for five-level, seven-level, nine-level and eleven-level Cascaded H-Bride Multi-level Inverter fed to Induction motor. Theoretical investigations were confirmed by the digital simulations using MATLAB/SIMULINK software.
International Journal of Engineering Research and Applications (IJERA) aims to cover the latest outstanding developments in the field of all Engineering Technologies & science.
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.
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About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
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Field-Oriented Control of PMSM Drive Based on SVPWM Using MATLAB
1. Naresh Gujjula Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 4, Issue 7( Version 5), July 2014, pp.95-99
www.ijera.com 95 | P a g e
Field-Oriented Control of PMSM Drive Based on SVPWM Using
MATLAB
Naresh Gujjula, G. Laxminarayana
M.Tech scholar at Aurora’s engineering college, Bhongir,nalgonda district ,Telangana,India
Assistant Professor, Dept. of EEE, Aurora's Engineering College, Bhongir, India.
Abstract: The space vector PWM has the character of wide linear range, little higher harmonic and easy digital
realization. The FOC theory and SVPWM technique make the PMSM can achieve the performance as well as
DC motor. The mathematical model of PMSM is analyzed and the system model of FOC vector control has
been established. The control system has been also simulated by MATLAB/Simulink. The simulation results
accord with the real motor’s performance and provide the theory basis for the designing of real system.
Keywords: space vector PWM (SVPWM), permanent magnetic synchronous motor(PMSM), field-oriented
control(FOC)
I. THE MATHEMATICAL MODEL
OF PMSM
The following assumptions are made before
establishing the mathematical model of PMSM:
Neglects the saturation of the electric motor
ferrite core.
Neglects turbulent flow and hysteresis loss in
electric motor.
The current in electric motor is symmetrical
three-phase sinusoidal current.
A. d-q reference coordinate system
There are two kinds of coordinate system in
FOC. One is fixed on the stator, which is a static
coordinate system relative to us; the other is fixed on
the rotor, which is a revolving coordinate system.
Both the three -phase stator A-B-C coordinate system
based on three-phase winding of three-phase stator
and the two-phase stator α-β coordinate system are
the static coordinate system. The two-phase stator α-β
coordinate system is composed of α axis fixed on A
axis and β axis that is vertical to α axis. While d-q
coordinate system with d axis fixed on the rotor spool
thread is revolving[1]. Figure 1 shows the relationship
of α-β coordinate system and d-q coordinate system.
is the angle between d and α axis which is also phase
A. Equation (1) gives the transforms from A-B-C to
d-q coordinate system. While Equation (2) gives the
transforms from d-q to α-β coordinate system.
Figure 1. Relationship of the α-β and d-q coordinate
system
B. The mathematical model of PMSM based on d-q
coordinate system
The most common method in analyzing electric
control PMSM is d-q axis mathematical model,
which can be used in analyzing the stable state
performance of PMSM as well as in studying the
transient state performance. The mathematical model
of PMSM is usually composed of the voltage
equation, the stator flux linkage equation, the
electromagnetism torque equation, the mechanical
movement equation. The equations under d-q
coordinate system can be expressed as follows:
The voltage equation:
RESEARCH ARTICLE OPEN ACCESS
2. Naresh Gujjula Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 4, Issue 7( Version 5), July 2014, pp.95-99
www.ijera.com 96 | P a g e
The stator flux linkage equation:
The electromagnetism torque equation
(5) The mechanical movement equation:
(6) Where: ud 、uq ——Applied d-q-axis control voltage id 、iq ——Stator d-q-axis current ψ q 、ψ d ——d-q-axis flux linkage Lq 、 Ld ——d-q-axis inductance Rs ——Armature resistance ψ r ——Permanent magnet flux linkage Te ——Electromagnetic torque TL ——Load torque J ——Moment of Inertia p ——Pole-pair numbers of the motor ω ——Electrical angular speed
II. THE PRINCIPLE OF ROTOR FIELD-ORIENTED VECTOR CONTROL SYSTEM
The figure 2 shows the block diagram of Rotor field- oriented vector control system [2]:
Figure 2. FOC system structure
In this control system, stator current iA, iB outputted by the inverter is measured using electric current sensor, and iC is calculate with the formula iC=-(iA+iB). Transform the electric current iA,, iB, iC into the direct component isq, isd in the revolving coordinate system through the Clarke and the Park transform. Then isq, isd can be used as the negative feedback quantity of the electric current loop. The deviation between the given speed and the feedback speed n is regulated through the speed PI regulator. The output is q axis reference component isqref to control the torque .The deviations between isqref, isdref and current feedback quantity isq, isd go through the electric current PI regulator, and the respectively output phase voltage Vsqref and Vsdref on the d-q revolving coordinate system. Vsqref and Vsdref are transformed into the stator phase voltage vector component Vsαref and Vsβ ref under α-β coordinate system through inverse Park transform. If the stator phase voltage vector Vsqref, Vsdref and its sector number is known, we can use the voltage space vector PWM technique to produce PWM signal to control the inverter, so as to achieve closed-loop control of the PMSM. If we take the algorithm of id=0(isdref =0) for a sufaced-mounted PMSM (SPM),the current vector trajectory as the Maximum Torque-per-Amp trajectory. On this condition, torque per current ampere becomes maximal, the copper loss decreased and the efficiency increased. That’s why most SPM take the algorithm of id=0. In this paper, we also take SPM as the simulation motor model.
III. THE ESTABLISHMENT OF THE FOC SIMULATION MODEL
After analyzing the mathematical model of PMSM and the principle of Rotor field-oriented vector control system, the simulation model of field- oriented control system is established. The simulation model is under the environment of MATLAB7.0/Simulinkusing, due to its rich module libraries.
The system structure is shown as figure 3, and the main simulation modules are introduced as follows:
Figure 3. FOC system structure diagram of the PMSM based on SVPWM
3. Naresh Gujjula Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 4, Issue 7( Version 5), July 2014, pp.95-99
www.ijera.com 97 | P a g e
A. The transform module from d-q to α-β coordinate system The transform from d-q to α-β coordinate system is realized mainly according to equation (2) and the position angle of the rotor, namely the in figure 1. The specific interior simulation diagram is shown in figure 4.
Figure 4. Block diagram of d-q to α-β transformation B. The module of SVPWM production The SVPWM uses two neighboring effective vectors and null vectors of the eight basis space voltage vector and their different act time to obtain the equivalent space voltage vector that the motor needs, as shown in figure 5 [3].
Figure 5. Basic voltage vectors and reference vector
1) The judgment of the sector
According to figure 5, when Vout is given in the form of the component Voutα、Voutβ on α-β coordinate system, we can use equation (2) to calculate B0、B1、B2.
(7) The value of equation P can be given by
(8) where sign(x) is sign function. Then the sector number can be given by looking up table 1.
The sector judgment module is shown as figure 6.
Figure 6. Simulation model of sector judgment 2) The calculation of the basic voltage vector act time The relationship between the act time of the basic voltage vectors t1、t2 and X、Y、Z, and sector N is shown as follows:
X、Y、Z can be given by equation (9).
(9) The module diagram is shown as figure 7.
Figure 7. Simulation model of acting time of basic voltage vector 3) The calculation of switching time Firstly, Ta、Tb、Tc can be given by
The switch time is shown as the following table, where taon、tbon、tcon means the turned-on time of the three-phase bridge arm power component respectively[4][5].
4. Naresh Gujjula Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 4, Issue 7( Version 5), July 2014, pp.95-99
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TABLE III. THE TIME SCHEDULE OF A、B、C THREE-PHASE SWITCH
The simulation diagram is shown in figure 8.
Figure 8. The simulation model of the inverter at the switch time 4) The production of PWM signal Comparing the obtained , and with the isosceles triangle, we can get symmetric space vector PWM signal. Making PWM1,PWM3,PWM5 reverse ,We can get PWM2,PWM4 and PWM6. The overall simulation structure diagram of SVPWM as shown in figure 9[6]:
Figure 9. SVPWM simulation model 5) The model of inverter and electrical motor Both the inverter module and the PMSM mentioned in simulation are provided by MATLAB/Simulink. The machine parameters listed in Table IV are used for the simulations. The measurement module may be used for examining the outputs physical quantity of the motor, and as feedback parameter to constitute closed-loop control system.
TABLE IV MACHINE PARAMETERS FOR SIMULATIONS
IV. THE RESULT OF THE SIMULATION
Set the motor speed at 500 rad/s, PWM cycle T=0.001S. At time 0s, the electrical motor no-load start up, at time 0.03s, the load increases to3 Nm. Simulation time is 0.06s, and then the simulation waveform shows as follows:
Figure 10. The current and speed response when load is increased
Figure 11. The torque response when load is increased
Simulation results are in accord with the performance characteristic of PMSM, which proves
5. Naresh Gujjula Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 4, Issue 7( Version 5), July 2014, pp.95-99
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the accuracy of the SVPWM algorithm and the control model, and provides theory basis for actual design of the control sy. REFERENCES
[1] XU Jun-Feng, FENG Jiang-Hua, XU Jian- Hua. Control policy of permanent magnetism synchronous motor summery .The electrical trasimissionof Locomotive, 2005, pp.7-11.
[2] CHENG Min-Jun. Research of high performance magnetism synchronous motor vector velocity modulation system.The mster’s degree paper in Zhe Jiang Industrial university, 2006, pp.65-67.
[3] Li Chuan-Fang, Li Feng , QU Ji-Sheng and so on. Thechnology characteristic and optional method of the space vector polse- duration modulation(SVPWM) .Shan Dong university Journal, 2005, pp.27-31.
[4] SUN Ye-Shu, ZHOU Xin-Yun, LI Zheng- Ming. SIMULINK simulation of space vector PWM .Farm machinery reseach, 2003, pp.105-106.
[5] TEAXS INSTRUMENTS, Space-Vector PWM with TMS320C24x Using Hardware & Software Determined Switching Patternts, 2000, pp.29-36.
[6] Ke Song, Wei guo Liu. Permanent Magnet Synchronous Motor Field Oriented Control and HIL Simulation. IEEE Vehicle Power and Propulsion Conference, Harbin, 2008, pp.4-6.