Simulation of Three-Phase Motor Rotor Flux Oriented Control System Based on SVPWM

2013 ◽  
Vol 345 ◽  
pp. 89-93
Author(s):  
Ying Zhan Hu ◽  
Shuo Feng
Keyword(s):  
Pulse Width Modulation ◽  
Asynchronous Motor ◽  
Control Performance ◽  
Excitation Current ◽  
Voltage Space Vector ◽  
Stator Current ◽  
Voltage Vector ◽  
Three Phase ◽  
Rotor Flux ◽  
Application Requirements

In order to improve the control result of three-phase motor with power supplied by battery, it uses voltage vector control technology to control the three-phase motor excitation current and the torque current respectively. At the same time, according to the principle of rotor flux oriented, it get the aim of measuring and controlling the vector of three-phase motor stator current. The research on the way of achieving the algorithm of the voltage space vector pulse width modulation is detailed introduced. By building the simulating model of three-phase asynchronous motor, it simulates the algorithm. As a result, it shows that the algorithm is reasonable, the control performance is better and application requirements of control for three-phase asynchronous motor with power supplied by battery is satisfied.

The Simulation Research and Modeling of Asynchronous Motor's Vector Control

2013 ◽  
Vol 336-338 ◽  
pp. 484-488 ◽  
Author(s):  
Yu Fang Gong ◽  
Yu Gong ◽  
Xin Ying Li
Keyword(s):  
Control System ◽  
Vector Control ◽  
Pulse Width Modulation ◽  
Asynchronous Motor ◽  
Simulation Research ◽  
Asynchronous Motors ◽  
Three Phase ◽  
Rotor Flux ◽  
Vector Control System ◽  
The Mathematical Model

Based on the analysis of the mathematical model of the three-phase asynchronous motor and sine pulse width modulation principle, According to the theory of asynchronous motors vector control , software is building simulation model of asynchronous motors vector control system according to the rotor flux in Matlab/Simulink, analysis dynamic characteristics of rotational speed, torque and stator current ,provided the simulation results of the control system, verify the vector control is effective and feasible.

scholarly journals Opposite Triangle Carrier with SVPWM for Common-Mode Voltage Reduction in Dual Three Phase Motor Drives

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 282
Author(s):  
Seon-Ik Hwang ◽  
Jang-Mok Kim
Keyword(s):  
Electromagnetic Interference ◽  
Pulse Width Modulation ◽  
Motor Drives ◽  
Common Mode ◽  
Pwm Inverter ◽  
Common Mode Voltage ◽  
Voltage Vector ◽  
Three Phase ◽  
The Common ◽  
Zero Voltage

The common-mode voltage (CMV) generated by the switching operation of the pulse width modulation (PWM) inverter leads to bearing failure and electromagnetic interference (EMI) noises. To reduce the CMV, it is necessary to reduce the magnitude of dv/dt and change the frequency of the CMV. In this paper, the range of the CMV is reduced by using opposite triangle carrier for ABC and XYZ winding group, and the change in frequency in the CMV is reduced by equalizing the dwell time of the zero voltage vector on ABC and XYZ winding group of dual three phase motor.

Speed control of asynchronous motor based on improved deadbeat predictive algorithm

2020 ◽  
Vol 234 (9) ◽  
pp. 1037-1049
Author(s):  
Tao Wang ◽  
Jikun Li ◽  
Qiang Hou
Keyword(s):  
Predictive Control ◽  
Asynchronous Motor ◽  
Experimental Program ◽  
Control Algorithms ◽  
Control Performance ◽  
Flux Linkage ◽  
Load Torque ◽  
Predictive Algorithm ◽  
Three Phase ◽  
Torque Observer

In this article, the three-phase asynchronous motor is taken as the research object, and the deadbeat predictive control is the control core, and its control performance is studied. Considering the overshoot of flux linkage and speed response in deadbeat predictive control, an improved deadbeat predictive control algorithm based on synergy theory is proposed. Different from deadbeat predictive control, improved deadbeat predictive control can control the flux linkage and speed independently through two adjustment parameters, which are achieved through the manifold of synergy theory. To accurately obtain the feedback flux linkage and load torque in the control, a flux observer and a load torque observer are designed. Based on these, a simulation platform is built, and the control performance of the two control algorithms is compared. The robustness of the two control algorithms is further verified by changing parameters. Finally, the experimental platform of three-phase asynchronous motor is built in this article. The experimental program based on deadbeat predictive control is designed. The no-load experiment and loading experiment are carried out, respectively. The feasibility of the algorithm is verified by experimental data.

Wavelet Transform for Starting Characteristics of Three-Phase Cage Asynchronous Motor

2011 ◽  
Vol 347-353 ◽  
pp. 2987-2990
Author(s):  
Yuan Yuan Li ◽  
Qi Zhong Liu ◽  
Chao Gang Yu
Keyword(s):  
Wavelet Transform ◽  
Performance Test ◽  
Harmonic Wave ◽  
Asynchronous Motor ◽  
Time Frequency ◽  
First Order ◽  
Stator Current ◽  
Electric Machinery ◽  
Three Phase ◽  
Starting Characteristics

In electric machinery performance test, tooth harmonic time-frequency characters of first order of three-phase cage asynchronous motor are most important. The MATLAB software is used to make model and simulate the starting characteristic of asynchronous motor in this article, while the stator current signal of starting motor is de noised by wavelet transform. Through decomposition and reconstruction of wavelet transform, the amplitude of fundamental and harmonic wave in de noising stator current can be reduced, and then the tooth harmonic of first order of starting rotor is extracted. Using the excellent time-frequency analyzing characters of wavelet package transform, the tooth harmonic time-frequency curve is fitted.

Diagnostics of Stator Winding Faults in a Three-Phase Asynchronous Motor Using Park’s Vector Analysis

Vestnik MEI ◽  
2021 ◽  
pp. 69-74
Author(s):  
Muhammad Deeb ◽  
◽  
Gassan Ibragim ◽  
Talal Assaf ◽  
◽  
...  
Keyword(s):  
Induction Motor ◽  
Short Circuit ◽  
Asynchronous Motor ◽  
Vector Model ◽  
Stator Winding ◽  
Stator Windings ◽  
Stator Current ◽  
Experimental Part ◽  
Three Phase ◽  
Short Circuit Fault

The study addresses the problem of detecting a short circuit fault in the three-phase induction motor winding by monitoring the stator current Park vector (Lissajous curves). Park's vector model is implemented using the Matlab software package. The experimental part of the study was carried out on an 11 kW three-phase induction motor. The Lissajous curves obtained for a healthy motor and a motor with short-circuited turns under various load conditions were compared with each other. The obtained results have demonstrated the effectiveness of the proposed method for detecting interturn short circuit faults in the three-phase stator windings of induction motors.

Research of PMSM Stator Current Collection System Design Based on C8051F500 and AD7865

2013 ◽  
Vol 433-435 ◽  
pp. 1458-1462
Author(s):  
Gong Ding Bai ◽  
Jun Hua Liu ◽  
Wei Gang Shan ◽  
Bo Zhao ◽  
Xue Mei Zhang ◽  
...  
Keyword(s):  
System Design ◽  
Permanent Magnet ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Permanent Magnet Synchronous Motor ◽  
Hybrid Vehicle ◽  
Collection System ◽  
Current Collection ◽  
Stator Current ◽  
Three Phase

Permanent magnet synchronous motor (PMSM) now is widely used in hybrid vehicle drive area. When the space vector pulse width modulation (SVPWM) is used in PMSM control, the stator three phase currents must be collected for its control calculation. In this paper, a PMSM stator current collection system based on C8051F500 and AD7865 is designed, and proved to be effective with experiments.

scholarly journals A Method for the Simultaneous Suppression of DC Capacitor Fluctuations and Common-Mode Voltage in a Five-Level NPC/H Bridge Inverter

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 779 ◽  
Author(s):  
Ming Wu ◽  
Zhenhao Song ◽  
Zhipeng Lv ◽  
Kai Zhou ◽  
Qi Cui
Keyword(s):  
Pulse Width Modulation ◽  
Neutral Point ◽  
Common Mode ◽  
Mapping Algorithm ◽  
Common Mode Voltage ◽  
Point Potential ◽  
Voltage Vector ◽  
Three Phase ◽  
Simulation And Experiment ◽  
The Common

To suppress the direct current (DC) capacitor voltage fluctuations and the common-mode voltage (CMV) in a three-phase, five-level, neutral-point-clamped (NPC)/H-bridge inverter, this paper analyzes the influence of all voltage vectors on the neutral point potential of each phase under different pulse mappings in detail with an explanation of the CMV distribution. Then, based on the traditional space vector pulse width modulation (SVPWM) algorithm, a dual-pulse-mapping algorithm is proposed to suppress the DC capacitor fluctuations and the CMV simultaneously. In the algorithm, the reference voltage synthesis selects the voltage vector that has the smallest CMV value as the priority. In addition, the two kinds of pulse mappings that have opposite effects on the neutral point potential are switched to output. At the same time, regulating factors are introduced to adjust the working time of each voltage vector under the two pulse mappings; then, the capacitor voltages can be balanced. Both the simulation and experiment demonstrate the algorithm’s effectiveness.

Research on the Method of Variable-Frequency Hysteresis SVPWM Current Control for Three-Phase PWM Rectifier

2014 ◽  
Vol 678 ◽  
pp. 392-398 ◽  
Author(s):  
Xu Chen ◽  
Shou Qi Wei
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Current Control ◽  
Voltage Source ◽  
Variable Frequency ◽  
Pwm Rectifier ◽  
Hysteresis Current Control ◽  
Voltage Vector ◽  
Three Phase ◽  
Space Voltage Vector

Aiming at the shortcomings of the method of conventional hysteresis current control for three-phase PWM rectifier, this paper proposes a new method, which combines Variable-frequency hysteresis current control with Space Vector Pulse-width Modulation (SVPWM) strategy. With this method, the error current can be limited in a given hysteresis loop by switching the space voltage vector of the voltage source PWM rectifier (VSR) in real time. And it can get a faster response for the current, while the frequency of the switches can be reduced. So, this method can obtain a high quality for the current control of PWM rectifier.

scholarly journals Impact of asymmetrical phenomena on asynchronous three-phase motors in operation mode

2020 ◽  
Vol 61 (3) ◽  
pp. 68-74
Author(s):  
Y Nhu Do ◽  
Thanh Xuan Le ◽  
Ninh Bao Nguyen ◽  
Tuan Thanh Ngo ◽  
Keyword(s):  
Asynchronous Motor ◽  
Operation Mode ◽  
Electric Machines ◽  
Normal Operation ◽  
Electrical System ◽  
Stator Current ◽  
Three Phase ◽  
Effective Operation ◽  
Starting Torque ◽  
Normal Operation Mode

The general theory of three-phase motors is often built based on the assumption that the three phases voltage is symmetrical. However, in practice, this operation mode of the motor cannot be achieved due to a number of reasons such as the structure of the motor is not symmetrical, the load in the electrical system is not balanced. The asymmetry of threephase voltage greatly affects the operation mode of a three-phase asynchronous motor. The most serious affections are: decrease the starting torque, increase stator current and rotor current, vibration inside the motor. This affection will reduce the effective operation of the motor. The paper investigates the effect of asymmetry voltage on the normal operation mode of a three-phase asynchronous motor based on the electromagnetic transforming method of electric machines and simulating on Matlab-Simulink.

scholarly journals Optimized Modulation Method for Common-Mode Voltage Reduction in H7 Inverter

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6409
Author(s):  
Belete Belayneh Negesse ◽  
Chang-Hwan Park ◽  
Seung-Hwan Lee ◽  
Seon-Woong Hwang ◽  
Jang-Mok Kim
Keyword(s):  
Dwell Time ◽  
Pulse Width Modulation ◽  
Modulation Method ◽  
Limited Area ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Offset Voltage ◽  
Voltage Vector ◽  
Three Phase ◽  
Zero Voltage

The three-phase H7 inverter topology installs an additional power semiconductor switch to the positive or negative node of the DC-link for reducing the common-mode voltage (CMV) by disconnecting the inverter from the DC source during the zero-voltage vectors. The conventional CMV reduction method for the three-phase H7 inverter uses modified discontinuous pulse width modulation (MDPWM) and generates a switching signal for the additional switch using logical operations. However, the conventional method is unable to eliminate the CMV for the entire dwell time of the zero-voltage vectors. It only has the effect of reducing the CMV in a limited area of the space vector where the V7 zero voltage vector is applied. Therefore, this paper proposes an optimized modulation method that can reduce the CMV during the entire dwell time of zero-voltage vectors. The proposed method moves the switching patterns by adding an offset voltage to guarantee that only one kind of zero-voltage vector, V7, is applied in the system. It then turns off the seventh switch only during the zero-voltage vector to disconnect the inverter from the DC source. As a result, the CMV and the leakage current are attenuated for the entire dwell time of the zero-voltage vector. Simulation and experimental results confirm the validity of the proposed method.

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