The document summarizes sensorless field oriented control (FOC) for a permanent magnet synchronous motor (PMSM) using a PLL estimator and field weakening. It describes a control scheme using a PLL type estimator to estimate the rotor position and speed without position sensors. The estimator uses the fact that the d-component of the back EMF should be zero to estimate the rotor speed and position. It then provides field weakening capabilities to achieve higher speeds than the base speed by using the flux generating stator current to weaken the air gap field. However, field weakening is limited for the surface PMSM described due to its large air gap.
A3918 low voltage dc motor driver allegro datasheet[1]putchi56
The A3918 is a low voltage DC motor driver capable of output currents up to 1.5A and operating voltages from 2.5V to 9V. It uses internal PWM current control and synchronous rectification for reduced power dissipation. It has features such as undervoltage lockout, low RDS(on) outputs, brake mode for DC motors, and thermal shutdown protection. The A3918 is provided in a 16-pin QFN package and is suitable for applications such as digital cameras and battery/USB powered devices.
The document discusses a symposium on preventing road accidents held in Novi Sad, Serbia on October 11-12, 2012. It lists the organizers and presenters which include professors and researchers from Russia and Serbia. The document then outlines several key issues in transport planning and management that will be addressed at the symposium, including past approaches that were not fully effective, the need for a comprehensive modeling approach, and the proposed use of a data and simulation system to help optimize the transport network, recommend infrastructure changes, and reduce accidents.
Here are the key steps to stabilize the boost converter control loop:
1. Select a crossover frequency fc lower than the maximum stable frequency.
2. Inject an AC signal and measure the open-loop gain without compensation.
3. Select compensator values R1, R2, C1, C2, C3 to provide sufficient phase margin at fc.
4. Simulate the closed-loop response and verify stability over operating conditions. Adjust compensator as needed.
The compensator provides poles and zeros to shape the open-loop response for stability. Proper selection of fc and compensator component values based on the plant transfer function H(s) is critical for robust performance.
The document discusses PSpice simulations of lithium-ion battery circuits and applications. It provides specifications for a 65Wh lithium-ion battery pack, including capacity, rated current, input/output voltages, and charging time. It shows discharge curves from simulations at different discharge rates (0.2C, 0.5C, 1C) compared to measurement data. It also simulates the charge characteristics of the battery pack over time at a charge rate of 0.2C.
This paper proposes a model for city-scale EV infrastructures. Recent advances both in EV battery technology and alternative battery ownership formulations have created favorable conditions for houses where EVs are used not only for commuting but also as one of the main power supplies. Power supplied by EVs is a natural complement for solar panels, where the former is the only choice at night when solar panels cannot function by definition. The proposed model is based on a system of practical considerations with the main objective to build simulations as close to reality as possible. The model is applicable to a wide range of simulations including EV infrastructures, distributed power microgrids, smart cities, etc.
HEV-Inverter Li-Ion Battery Simulation using PSpiceTsuyoshi Horigome
This document describes a PSpice simulation of an HEV inverter and lithium-ion battery. The simulation circuit includes 6 battery modules connected in series to provide power to an AC motor load through an inverter. The simulation settings define the battery state of charge as 100%, the load current as 100A rms, and the number of battery segments as 25. The results plot speed, state of charge, battery voltage and inverter voltage over time.
This document discusses the energy requirements and powertrain design for a plug-in hybrid electric vehicle (PHEV). It first estimates the energy needed at the wheels by simulating the vehicle's performance on various drive cycles. It then sizes the engine and electric motor based on these energy needs. For the engine, it selects a 100kW gasoline engine similar to that in the 2010 Toyota Prius. It models the Prius powertrain configuration and calculates performance metrics like acceleration and top speed. Finally, it evaluates the vehicle's emissions and fuel economy on the drive cycles to validate that it meets targets.
Device Modeling and Simulation of DC Motor using LTspiceTsuyoshi Horigome
This document describes the simulation of a DC motor control circuit using LTspice. It includes models of a DC motor, timer IC, and specific Mabuchi motor. It details the manufacturer specifications, calculations to determine torque and back EMF constants, and transient simulations at no load and various load conditions. Simulation results are compared to measurement data to validate the motor model.
A3918 low voltage dc motor driver allegro datasheet[1]putchi56
The A3918 is a low voltage DC motor driver capable of output currents up to 1.5A and operating voltages from 2.5V to 9V. It uses internal PWM current control and synchronous rectification for reduced power dissipation. It has features such as undervoltage lockout, low RDS(on) outputs, brake mode for DC motors, and thermal shutdown protection. The A3918 is provided in a 16-pin QFN package and is suitable for applications such as digital cameras and battery/USB powered devices.
The document discusses a symposium on preventing road accidents held in Novi Sad, Serbia on October 11-12, 2012. It lists the organizers and presenters which include professors and researchers from Russia and Serbia. The document then outlines several key issues in transport planning and management that will be addressed at the symposium, including past approaches that were not fully effective, the need for a comprehensive modeling approach, and the proposed use of a data and simulation system to help optimize the transport network, recommend infrastructure changes, and reduce accidents.
Here are the key steps to stabilize the boost converter control loop:
1. Select a crossover frequency fc lower than the maximum stable frequency.
2. Inject an AC signal and measure the open-loop gain without compensation.
3. Select compensator values R1, R2, C1, C2, C3 to provide sufficient phase margin at fc.
4. Simulate the closed-loop response and verify stability over operating conditions. Adjust compensator as needed.
The compensator provides poles and zeros to shape the open-loop response for stability. Proper selection of fc and compensator component values based on the plant transfer function H(s) is critical for robust performance.
The document discusses PSpice simulations of lithium-ion battery circuits and applications. It provides specifications for a 65Wh lithium-ion battery pack, including capacity, rated current, input/output voltages, and charging time. It shows discharge curves from simulations at different discharge rates (0.2C, 0.5C, 1C) compared to measurement data. It also simulates the charge characteristics of the battery pack over time at a charge rate of 0.2C.
This paper proposes a model for city-scale EV infrastructures. Recent advances both in EV battery technology and alternative battery ownership formulations have created favorable conditions for houses where EVs are used not only for commuting but also as one of the main power supplies. Power supplied by EVs is a natural complement for solar panels, where the former is the only choice at night when solar panels cannot function by definition. The proposed model is based on a system of practical considerations with the main objective to build simulations as close to reality as possible. The model is applicable to a wide range of simulations including EV infrastructures, distributed power microgrids, smart cities, etc.
HEV-Inverter Li-Ion Battery Simulation using PSpiceTsuyoshi Horigome
This document describes a PSpice simulation of an HEV inverter and lithium-ion battery. The simulation circuit includes 6 battery modules connected in series to provide power to an AC motor load through an inverter. The simulation settings define the battery state of charge as 100%, the load current as 100A rms, and the number of battery segments as 25. The results plot speed, state of charge, battery voltage and inverter voltage over time.
This document discusses the energy requirements and powertrain design for a plug-in hybrid electric vehicle (PHEV). It first estimates the energy needed at the wheels by simulating the vehicle's performance on various drive cycles. It then sizes the engine and electric motor based on these energy needs. For the engine, it selects a 100kW gasoline engine similar to that in the 2010 Toyota Prius. It models the Prius powertrain configuration and calculates performance metrics like acceleration and top speed. Finally, it evaluates the vehicle's emissions and fuel economy on the drive cycles to validate that it meets targets.
Device Modeling and Simulation of DC Motor using LTspiceTsuyoshi Horigome
This document describes the simulation of a DC motor control circuit using LTspice. It includes models of a DC motor, timer IC, and specific Mabuchi motor. It details the manufacturer specifications, calculations to determine torque and back EMF constants, and transient simulations at no load and various load conditions. Simulation results are compared to measurement data to validate the motor model.
This document presents a dynamic model of a permanent magnet synchronous motor. It derives a two-phase d-q model from the three-phase model by transforming the stator variables from the stationary a-b-c frame to the rotating d-q frame. It discusses obtaining the complete set of model parameters from simple laboratory tests, as some parameters are not directly measurable and vary with operating conditions. The model is primarily for interior permanent magnet synchronous motors but can also apply to surface permanent magnet motors.
Advanced Automotive Batteries Europe 2016David Mello
Leading European event where automakers and energy storage system developers discuss the most recent progress in advanced battery technology in automotive, industrial, and specialty applications, as well as the latest developments in EC capacitors.
Modelling and dynamic simulation of a mobile hybrid power systemPrivate Consultants
The document describes modeling and dynamic simulation of a hybrid power system for a mobile medical clinic. The system includes a high-output alternator, variable-speed diesel generator, roof-mounted photovoltaic panels, lead-acid battery bank, and power conditioning electronics. A simulation was created in MATLAB/SIMULINK to analyze the system design. Individual component models account for performance data and environmental factors. The simulation allows testing operational strategies to minimize fuel use and maximize battery life.
Este documento describe la aplicación de motores síncronos de imanes permanentes (PMSM) en vehículos híbridos eléctricos, enfocándose en el Toyota Prius. Explica que los vehículos híbridos combinan un motor de combustión interna con uno o más motores eléctricos para reducir el consumo de combustible. Luego, analiza el sistema híbrido del Prius y sus motores eléctricos MG1 y MG2 a través de los años, notando mejoras en la potencia, eficiencia y tamaño del MG
The document provides specifications and simulation results for a photovoltaic lead-acid battery system. It includes specifications for lead-acid batteries and solar cells, as well as simulation circuits and results for charging the batteries from the solar cells under different weather conditions over 24 hours. Key components are lead-acid batteries from GS YUASA, solar panels from BP Solar, and circuits to regulate charging and prevent overvoltage. Simulations examine effects of solar irradiance on charging time.
This document describes a simplified SPICE behavioral model for a permanent magnet synchronous motor (PMSM) in PSpice. It includes details on parameter settings, the implementation of the motor model functions, how to use the terminal connections, and an example of vector control simulation with current and speed sensing. The example shows simulation results for zero torque, positive torque, and negative torque applied to the motor, zooming in on the waveform responses in each case.
Permanent Magnet Synchronous Motor (PMSM)Simplified SPICE Behavioral ModelTsuyoshi Horigome
This document describes a simplified SPICE behavioral model for a permanent magnet synchronous motor (PMSM) in LTspice. It includes descriptions of parameter settings, the implementation of functions for the motor model, how to connect terminals, and an example of vector control simulation with current and speed sensing. Simulation results are shown for different torque conditions applied to the motor model.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Concept Kit 3-Phase AC Motor Drive Circuit Simulation (LTspice Version)Tsuyoshi Horigome
This document provides a model and simulation of a 3-phase AC motor. It includes specifications for a Motenergy ME0913 motor and defines the torque, back-EMF, and equivalent circuit model. Simulation results show characteristics of phase current, back-EMF, speed and torque under varying load conditions. The model and simulation analyze motor operation powered by alternating voltage variations.
Concept Kit 3-Phase AC Motor Drive Simulation (PSpice Version)Tsuyoshi Horigome
This document provides an overview of modeling a 3-phase AC motor for electric drive system simulation in PSpice. It includes the motor specifications, modeling of torque and back-EMF, a simplified 3-phase AC motor model, the equivalent circuit model, and appendices describing simulation settings and evaluation. The modeling aims to simulate phase current, back-EMF, speed, torque, power output and efficiency characteristics of the 3-phase AC motor under different load conditions.
Hirschmann: Automotive SPICE Requirements for development process and tools Intland Software GmbH
The document discusses requirements for development processes and tools based on Automotive SPICE standards. It describes how an automotive company uses various tools like Doors, Trackers, CMDB categories, Wikis and document management to establish bidirectional traceability between requirements, designs, code and tests. URLs and hyperlinks are used to link related artifacts across different tools while maintaining the information in the original tools.
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.
• Sensorless speed and position estimation of a PMSM (Master´s Thesis)Cesar Hernaez Ojeda
Field Oriented Control (FOC) was chosen to control the motor. A Voltage Switch Inverter (VSI) controls the machine currents using Space Vector Modulation (SVM). Back-EMF method was used to estimate the position and a Phase Locked Loop to estimate the speed. The project was tested experimentally in the laboratory using a Danfoss power converter and dSpace.
1) The document discusses models for permanent magnet motor drives, specifically the permanent magnet synchronous motor (PMSM) and brushless DC motor (BDCM).
2) It explains that the PMSM has a sinusoidal back EMF and requires sinusoidal currents, while the BDCM has a trapezoidal back EMF and requires rectangular currents.
3) The paper argues that a d-q axis model is suitable for modeling the PMSM, while an ABC phase variable model should be used for the BDCM due to its non-sinusoidal inductances.
This document provides an abstract for a thesis on direct torque control of permanent magnet synchronous machines. The thesis analyzes applying direct torque control to permanent magnet synchronous motors (PMSMs). It presents methods for estimating stator flux linkage, initial rotor angle, and selecting optimal flux linkage references. It also analyzes selecting motor parameters and estimating the parameters of the motor model. The thesis was submitted in fulfillment of requirements for a degree at Lappeenranta University of Technology in 2000.
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.
Comparison Between Two Different Speed Controls Of The Permanent Magnets Sync...Attou
This paper presents a comparison between two control strategies, field oriented control (FOC) and sliding mode control (SMC). The first study has been done on controlling the
Permanent Magnets Synchronous Machine (PMSM) by using field oriented control technique using a speed sensor to detect the rotor position of the motor. After we present the theory of sliding mode control .We can see from the simulation results that the second proposed control system (SMC), is a robust nonlinear
time optimal controller, that's will be more explained in the appendix.
This document describes two digital-to-analog conversion techniques for generating sine and DTMF waveforms using a PIC microcontroller: pulse width modulation (PWM) and R-2R resistor ladders. PWM involves generating a series of pulses at a fixed frequency and duty cycle to produce an analog output voltage after passing through a low-pass filter. R-2R ladders use a resistor network driven by digital outputs to directly produce an analog output. Source code examples are provided to generate a 60Hz sine wave using PWM and all 12 DTMF tones using an R-2R ladder. The techniques require few external components and can be used to generate complex analog signals for applications like motor control and telephone dialing.
This document presents a dynamic model of a permanent magnet synchronous motor. It derives a two-phase d-q model from the three-phase model by transforming the stator variables from the stationary a-b-c frame to the rotating d-q frame. It discusses obtaining the complete set of model parameters from simple laboratory tests, as some parameters are not directly measurable and vary with operating conditions. The model is primarily for interior permanent magnet synchronous motors but can also apply to surface permanent magnet motors.
Advanced Automotive Batteries Europe 2016David Mello
Leading European event where automakers and energy storage system developers discuss the most recent progress in advanced battery technology in automotive, industrial, and specialty applications, as well as the latest developments in EC capacitors.
Modelling and dynamic simulation of a mobile hybrid power systemPrivate Consultants
The document describes modeling and dynamic simulation of a hybrid power system for a mobile medical clinic. The system includes a high-output alternator, variable-speed diesel generator, roof-mounted photovoltaic panels, lead-acid battery bank, and power conditioning electronics. A simulation was created in MATLAB/SIMULINK to analyze the system design. Individual component models account for performance data and environmental factors. The simulation allows testing operational strategies to minimize fuel use and maximize battery life.
Este documento describe la aplicación de motores síncronos de imanes permanentes (PMSM) en vehículos híbridos eléctricos, enfocándose en el Toyota Prius. Explica que los vehículos híbridos combinan un motor de combustión interna con uno o más motores eléctricos para reducir el consumo de combustible. Luego, analiza el sistema híbrido del Prius y sus motores eléctricos MG1 y MG2 a través de los años, notando mejoras en la potencia, eficiencia y tamaño del MG
The document provides specifications and simulation results for a photovoltaic lead-acid battery system. It includes specifications for lead-acid batteries and solar cells, as well as simulation circuits and results for charging the batteries from the solar cells under different weather conditions over 24 hours. Key components are lead-acid batteries from GS YUASA, solar panels from BP Solar, and circuits to regulate charging and prevent overvoltage. Simulations examine effects of solar irradiance on charging time.
This document describes a simplified SPICE behavioral model for a permanent magnet synchronous motor (PMSM) in PSpice. It includes details on parameter settings, the implementation of the motor model functions, how to use the terminal connections, and an example of vector control simulation with current and speed sensing. The example shows simulation results for zero torque, positive torque, and negative torque applied to the motor, zooming in on the waveform responses in each case.
Permanent Magnet Synchronous Motor (PMSM)Simplified SPICE Behavioral ModelTsuyoshi Horigome
This document describes a simplified SPICE behavioral model for a permanent magnet synchronous motor (PMSM) in LTspice. It includes descriptions of parameter settings, the implementation of functions for the motor model, how to connect terminals, and an example of vector control simulation with current and speed sensing. Simulation results are shown for different torque conditions applied to the motor model.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Concept Kit 3-Phase AC Motor Drive Circuit Simulation (LTspice Version)Tsuyoshi Horigome
This document provides a model and simulation of a 3-phase AC motor. It includes specifications for a Motenergy ME0913 motor and defines the torque, back-EMF, and equivalent circuit model. Simulation results show characteristics of phase current, back-EMF, speed and torque under varying load conditions. The model and simulation analyze motor operation powered by alternating voltage variations.
Concept Kit 3-Phase AC Motor Drive Simulation (PSpice Version)Tsuyoshi Horigome
This document provides an overview of modeling a 3-phase AC motor for electric drive system simulation in PSpice. It includes the motor specifications, modeling of torque and back-EMF, a simplified 3-phase AC motor model, the equivalent circuit model, and appendices describing simulation settings and evaluation. The modeling aims to simulate phase current, back-EMF, speed, torque, power output and efficiency characteristics of the 3-phase AC motor under different load conditions.
Hirschmann: Automotive SPICE Requirements for development process and tools Intland Software GmbH
The document discusses requirements for development processes and tools based on Automotive SPICE standards. It describes how an automotive company uses various tools like Doors, Trackers, CMDB categories, Wikis and document management to establish bidirectional traceability between requirements, designs, code and tests. URLs and hyperlinks are used to link related artifacts across different tools while maintaining the information in the original tools.
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.
• Sensorless speed and position estimation of a PMSM (Master´s Thesis)Cesar Hernaez Ojeda
Field Oriented Control (FOC) was chosen to control the motor. A Voltage Switch Inverter (VSI) controls the machine currents using Space Vector Modulation (SVM). Back-EMF method was used to estimate the position and a Phase Locked Loop to estimate the speed. The project was tested experimentally in the laboratory using a Danfoss power converter and dSpace.
1) The document discusses models for permanent magnet motor drives, specifically the permanent magnet synchronous motor (PMSM) and brushless DC motor (BDCM).
2) It explains that the PMSM has a sinusoidal back EMF and requires sinusoidal currents, while the BDCM has a trapezoidal back EMF and requires rectangular currents.
3) The paper argues that a d-q axis model is suitable for modeling the PMSM, while an ABC phase variable model should be used for the BDCM due to its non-sinusoidal inductances.
This document provides an abstract for a thesis on direct torque control of permanent magnet synchronous machines. The thesis analyzes applying direct torque control to permanent magnet synchronous motors (PMSMs). It presents methods for estimating stator flux linkage, initial rotor angle, and selecting optimal flux linkage references. It also analyzes selecting motor parameters and estimating the parameters of the motor model. The thesis was submitted in fulfillment of requirements for a degree at Lappeenranta University of Technology in 2000.
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.
Comparison Between Two Different Speed Controls Of The Permanent Magnets Sync...Attou
This paper presents a comparison between two control strategies, field oriented control (FOC) and sliding mode control (SMC). The first study has been done on controlling the
Permanent Magnets Synchronous Machine (PMSM) by using field oriented control technique using a speed sensor to detect the rotor position of the motor. After we present the theory of sliding mode control .We can see from the simulation results that the second proposed control system (SMC), is a robust nonlinear
time optimal controller, that's will be more explained in the appendix.
This document describes two digital-to-analog conversion techniques for generating sine and DTMF waveforms using a PIC microcontroller: pulse width modulation (PWM) and R-2R resistor ladders. PWM involves generating a series of pulses at a fixed frequency and duty cycle to produce an analog output voltage after passing through a low-pass filter. R-2R ladders use a resistor network driven by digital outputs to directly produce an analog output. Source code examples are provided to generate a 60Hz sine wave using PWM and all 12 DTMF tones using an R-2R ladder. The techniques require few external components and can be used to generate complex analog signals for applications like motor control and telephone dialing.
Speed and Torque Control Challenge of PMSMIJMTST Journal
This paper presents modeling and implementation Challenge of speed toqrue rotor field oriented control of
permanent magnet synchronous machine (PMSM)drive. An experimental setup consisting of IGBT inverters
and a -TMS320LF240 DSP based digital controller is developed in the laboratory in IIT Kharagpur to
implement the control algorithms. A voltage model based flux observer is used for estimating the speed and
position of PMSM. In order to get good starting characteristics a rotor initial position algorithm is also
implemented in the control algorithm. For control purpose PMSM is consider like dc motor. The torque and
speed in the dc motor can be controlled independently by controlling armature current and field current
respectively ensures that dc motor has good dynamic performance.
FPGA-Based Implementation Nonlinear Backstepping Control of a PMSM DriveIJPEDS-IAES
In this paper, we present a new contribution of FPGAs (Field-Programmable Gate Array) for control of electrical machines. The adaptative Backstepping control approach for a permanent magnet synchronous motor drive is discussed and analyzed. We present a Matlab&Simulink simulation and experimental results from a benchmark based on FPGA. The Backstepping technique provides a systematic method to address this type of problem. It combines the notion of Lyapunov function and a controller procedure recursively. First, the adaptative and no adaptative Backstepping control approach is utilized to obtain the robustness for mismatched parameter uncertainties. The overall stability of the system is shown using Lyapunov technique. The simulation results clearly show that the proposed scheme can track the speed reference. Secondly, some experimental results are demonstrated to validate the proposed controllers. The experimental results carried from a prototyping platform are given to illustrate the efficiency and the benefits of the proposed approach and the various stages of implementation of this structure in FPGA.
Analysis & Performance of Operational Transconductance Amplifier at 180nm Tec...IRJET Journal
This document summarizes the design and simulation of a two-stage CMOS operational transconductance amplifier (OTA) in 180nm technology. The OTA was designed and simulated using Eldo simulator. DC analysis showed all transistors operating in saturation. AC analysis yielded a gain of 75dB, phase margin of 53.8 degrees, and unity gain bandwidth of 30.5MHz. Transient analysis showed a slew rate of 0.37V/us and settling time of 472ns. The OTA consumes 536.5uW of power under a 1.8V supply. Scaling the supply voltage to 1.5V and 1.2V achieved power savings of 18% and 35% with minor compromises to
IRJET - Vector Control of Permenant Magnet Synchronous MotorIRJET Journal
This document discusses vector control techniques for permanent magnet synchronous motors (PMSM). It describes field oriented control, direct torque control, voltage vector control, and passivity based control. It then discusses the components of a PMSM drive system, including the motor, inverter, and PID speed controller. It presents the mathematical model and torque equation for vector control of PMSM. Finally, it discusses simulating the PMSM drive system in MATLAB/Simulink using reverse Park transformations, hysteresis current control, and testing in the constant torque region of operation.
This document presents a practical implementation of direct torque control (DTC) for an induction motor drive using a digital signal processor (DSP). It describes the modeling and control system configuration for DTC, including the selection of state variables for flux and torque control. A sliding mode controller is designed for direct flux and torque control. Simulation and experimental results validate the DTC method and show reduced torque pulsations and constant switching frequency, demonstrating high performance of the control system.
IJCER (www.ijceronline.com) International Journal of computational Engineerin...ijceronline
This document summarizes a research paper that proposes a generalized pulse width modulation (GPWM) algorithm for direct torque controlled induction motor drives. The proposed GPWM algorithm uses only sampled phase voltages, reducing complexity compared to existing space vector PWM algorithms. By varying a constant value between 0 and 1, the GPWM algorithm can generate various PWM algorithms including SVPWM and discontinuous PWM algorithms. Simulation results show the GPWM algorithm provides fast dynamic response while reducing torque, flux and current ripples compared to direct torque control. The algorithm also achieves constant switching frequency operation of the inverter.
2.a neuro fuzzy based svpwm technique for pmsm (2)EditorJST
In the present scenario, static frequency converter based variable speed synchronous motors has
become very familiar and advantage to other drive system, especially low speed and high power applications.
Unlike the induction motor, the synchronous motor can be operated at variable power factor (leading, lagging
or unity) as desired. So, there is an increasing use of synchronous motors as adjustable speed drives. The PWM
technique is very useful to VSI drive for achieving efficient and smooth operation and free from torque
pulsations and cogging, lower volume and weight and provides a higher frequency range compared to CSI
drives. Even for voltage source inverter, the commutation circuit is not needed, if the self-extinguishing
switching devices are used. This paper proposes a concept of Neuro-fuzzy based control strategy which is used
for controlling the PMSM. The total work mainly concentrates on optimum control of PMSM with maximum
voltage utilization with less switching losses.
Comparitive Analysis of Speed and Position Control of BLDC Motor via Field Or...IRJET Journal
This document presents a comparative analysis of speed and position control of a brushless DC motor using field oriented control with two different pulse width modulation schemes: sinusoidal PWM (SPWM) and space vector PWM (SVPWM). Field oriented control is commonly used for high-performance motor control. The document models the BLDC motor and describes field oriented control, which represents stator currents in a rotating dq reference frame to separately control flux and torque. SPWM and SVPWM are two commonly used PWM techniques for motor control inverters. The analysis is carried out in Simulink to compare the performance of SPWM and SVPWM based field oriented control under different loading conditions. Preliminary results show similar performance under light loads
Fuzzy Controlled Permanent Magnet Synchronous Motor Drive by Space Vector Pul...IRJET Journal
This document proposes a fuzzy logic speed controller for a permanent magnet synchronous motor (PMSM) drive using space vector pulse width modulation. It compares the performance of a proportional-integral (PI) speed controller to the proposed fuzzy logic controller. The fuzzy controller is able to compensate for parameter variations and external disturbances using a disturbance voltage observer. Simulation results show the fuzzy logic controller provides improved dynamic response over the PI controller under different test conditions with disturbances.
Speed Tracking of Field Oriented Control Permanent Magnet Synchronous Motor U...IJPEDS-IAES
The field oriented control theory and space vector pulse width modulation technique make a permanent magnet synchronous motor can achieve the performance as well as a DC motor. However, due to the nonlinearity of the permanent magnet synchronous motor drive characteristics, it is difficult to control by using conventional proportional-integral-derivative controller. By this reason in this paper an online neural network controller for the permanent magnet synchronous motor is proposed. The controller is designed to tracks variations of speed references and also during load disturbance. The effectiveness of the proposed method is verified by develop simulation model in MATLAB-simulink program. The simulation results show that the proposed controller can reduce the overshoot, settling time and rise time. It can be concluded that the performance of the controller is improved.
Webinar: Controle de motores BLDC e de indução trifásicoEmbarcados
Pensando nas aplicações que necessitam de controle de motor e na complexidade envolvida, a Microchip tem desenvolvido diversos componentes, algoritmos e ferramentas para ajudar no desenvolvimento para o produto ir para o mercado em perfeito funcionamento e com menor tempo de desenvolvimento. Nesse webinar apresentaremos como você pode desenvolver facilmente aplicações para controle de motores BLCD e de indução trifásico usando os algoritmos FOC, Zero-Speed/Maximum-Torque Control, six step e v/f, com os softwares e hardware da Microchip.
Assista a gravação em: https://embarcados.com.br/webinar-controle-de-motores-bldc-e-de-inducao-trifasico/
Industrial motor c ontrol part 2 not sure if got use or not freescalewarluck88
This document discusses AC induction motors and permanent magnet synchronous motors (PMSMs). It introduces asynchronous versus synchronous motors, describes AC induction motors and common control techniques, and explains PMSMs and brushless DC motors. The document also outlines field oriented control principles and a sensorless FOC demonstration for PMSM control using Freescale motor control libraries.
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
The Journal of MC Square Scientific Research is published by MC Square Publication on the monthly basis. It aims to publish original research papers devoted to wide areas in various disciplines of science and engineering and their applications in industry. This journal is basically devoted to interdisciplinary research in Science, Engineering and Technology, which can improve the technology being used in industry. The real-life problems involve multi-disciplinary knowledge, and thus strong inter-disciplinary approach is the need of the research.
Motor_Control_Library_IITMRP_presentation.pdfMani Kandan K
Motor Control SDK v5.x provides software for controlling 3-phase PMSM motors using field oriented control (FOC). The SDK includes motor control libraries, examples, and tools like the motor profiler. It supports various current and position sensing methods and STM32 microcontrollers from value line to high performance models. The SDK addresses motor control needs from design to production with solutions like reference designs, evaluation boards, and development tools.
Building a multi protocol broker for the internet of things using nodejsMatteo Collina
Have you ever wondered how to interconnect your apps with physical things? Have you ever felt that the request/response pattern of HTTP is not enough? What about a binary protocol? In this talk you will discover the internal of the open source QEST broker, a Node.js-based broker for the Internet of Things that implements a classic publish/subscribe pattern, while making it accessible from HTTP and MQTT, an ultra-fast binary protocol.
IRJET- dsPIC based Implementation of Sinusoidal Pulse Width Modulation Techni...IRJET Journal
This document discusses the implementation of sinusoidal pulse width modulation (SPWM) techniques for controlling multilevel inverters using a microcontroller. It begins by introducing multilevel inverters and some of their advantages over traditional two-level inverters. It then discusses different SPWM techniques like phase disposition PWM and how they have traditionally been implemented using analog circuits. However, implementing these techniques digitally using a microcontroller presents challenges due to limitations in the number of PWM modules and input/output pins. The document proposes a method for digitally implementing phase disposition and other SPWM techniques by sampling the reference sinusoidal waveform and comparing it to a single carrier waveform generated by the microcontroller in different regions to emulate the behavior of the
IRJET- dsPIC based Implementation of Sinusoidal Pulse Width Modulation Techni...IRJET Journal
This document discusses the digital implementation of sinusoidal pulse width modulation (SPWM) techniques for controlling multilevel inverters using a microcontroller. It presents four SPWM techniques - phase disposition, phase opposition disposition, alternate phase opposition disposition, and inverted phase disposition - and how they can be realized digitally by fragmenting and shifting a reference sinusoidal wave in the microcontroller. Simulation and experimental results validating a five-level cascaded H-bridge inverter controlled by these SPWM techniques using a dsPIC microcontroller are also presented, including the total harmonic distortion achieved with each method.
Sensorless vector control of psms drives wquipped with inverter output filterwarluck88
This document presents a sensorless vector control method for a permanent magnet synchronous motor (PMSM) drive equipped with an LC filter between the inverter and motor. The control method accounts for the dynamics of the LC filter in its design. It uses cascaded controllers for the inverter current, stator voltage, and stator current. An adaptive full-order observer estimates the stator voltage, current, rotor speed, and position using only measurements of the inverter output current and DC link voltage. Simulation and experimental results demonstrate the functionality of the proposed control method.
Micro chip an1292 sensorless foc pmsm using pll estimator and field weakeningwarluck88
The document summarizes sensorless field oriented control (FOC) for a permanent magnet synchronous motor (PMSM) using a PLL estimator and field weakening. It describes a control scheme using a PLL type estimator to estimate the rotor position and speed without position sensors. The estimator uses the fact that the d-component of the back EMF should be zero to estimate the rotor speed and position. It then discusses considerations for implementing FOC and field weakening on a surface mounted PMSM. The summary provides the key details of the control scheme and estimator in 3 sentences or less.
Adaption of motor paramenters in sensorless pmsm driverwarluck88
The document proposes an online method for estimating the stator resistance and permanent magnet flux in sensorless permanent magnet synchronous motor drives. An adaptive observer augmented with high-frequency signal injection is used. Excess information in the observer is used to adapt the motor parameters. At low speeds, stator resistance is estimated from a speed correction term. At medium and high speeds, permanent magnet flux is estimated from d-axis current estimation error. Steady-state and small-signal analyses investigate parameter estimation sensitivity. Adaptation laws are designed for parameter convergence shown via simulation and experiment. Stator resistance adaptation works down to zero speed in sensorless control.
This document presents a dynamic model of a permanent magnet synchronous motor using a two-phase d-q model. It derives the two-phase model equations from the three-phase model equations. It discusses how the inductances and flux linkages vary with rotor position and defines the d-axis and q-axis components. It presents the two-phase equivalent circuit model and discusses how torque is produced from both the permanent magnet flux and reluctance torque. It also discusses how to obtain the two-phase model parameters from physical measurements of the motor.
This document is a thesis submitted by Salih Baris Ozturk to Texas A&M University in partial fulfillment of the requirements for a Master of Science degree in Electrical Engineering. The thesis focuses on developing a novel direct torque control scheme for permanent magnet synchronous motors using cost-effective Hall-effect sensors. It presents the basic theory, mathematical model, and simulation results of the proposed direct torque control topology. The mathematical model can simulate steady-state and dynamic responses, including under heavy load conditions. The proposed drive is then applied to the agitation part of a laundry washing machine for speed performance comparison with current control techniques.
Position sensorless vector control of pmsm for electrical household applicanceswarluck88
This document proposes a position sensorless vector control method for permanent magnet synchronous motors (PMSMs) suitable for electrical household appliance motor drives. It presents a simple position estimation equation and describes its derivation. It also proposes a simplified vector control method that does not require an automatic speed or current regulator but can achieve similar drive performance to conventional vector control under steady state conditions. Simulation and experimental results on a battery-driven cordless vacuum cleaner motor demonstrate the effectiveness of the proposed high-speed sensorless drive system using a typical low-cost microcontroller.