Compensation of dead-time effect of speed sensorless vector control system

2011 ◽  
Vol 17 (5) ◽  
pp. 351-355 ◽  
Author(s):  
Chaoying Xia ◽  
Jing Zhang
Keyword(s):  
Control System ◽  
Vector Control ◽  
Dead Time ◽  
Time Effect ◽  
Speed Sensorless ◽  
Sensorless Vector Control ◽  
Vector Control System

scholarly journals Research on Speed Sensorless Vector Control System of Asynchronous Motor Based on MRAS

2018 ◽  
Vol 160 ◽  
pp. 02006
Author(s):  
Zili Liao ◽  
Qijin Zhao ◽  
Xinxi Zhang ◽  
Luming Chen
Keyword(s):  
Control System ◽  
Vector Control ◽  
Asynchronous Motor ◽  
Speed Sensorless ◽  
Speed Sensor ◽  
Sensorless Vector Control ◽  
Static Performance ◽  
Vector Control System ◽  
Hysteresis Control ◽  
Model Reference Adaptive

This paper analysed the basic principle of speed sensorless vector control system. Based on speed and current closed loop vector control, combined with a simple and feasible current hysteresis control strategy, the whole speed sensorless system of asynchronous motor is simulated in MATLAB/Simulink. The method uses the Model Reference Adaptive System (MRAS). The observation and analysis of waveform shows that the system has good static performance and robustness. The control effects are also as similar as the vector control system which contains speed sensor.

Speed Sensorless Vector Control System of Induction Motor

2012 ◽  
Vol 516-517 ◽  
pp. 1664-1667 ◽  
Author(s):  
Hong Yu Wang ◽  
Wen Long Cai ◽  
Cheng Wei Hou
Keyword(s):  
Control System ◽  
Vector Control ◽  
Induction Motor ◽  
Estimation Method ◽  
Identification System ◽  
Rotor Speed ◽  
Motor Speed ◽  
Speed Sensorless ◽  
Sensorless Vector Control ◽  
Vector Control System

This paper introduces a vector control system for speed sensorless induction motor drive, which we have recently developed. In the introduce vector control system, one induction motor’s rotor speed estimation method based on model reference adaptive identification theory is proposed. The induction motor speed identification system based on the proposed method can estimate the rotor speed of the induction motor. The speed sensorless vector control system based on proposed method in this paper was built with Simulink blocks in Matlab platform. The simulation results indicate that the proposed method could operate stably in whole range of speed with preferable identification precision of rotor speed.

Simulation Research of Vector Control System Based on the Improved MRAS Speed Sensorless

2013 ◽  
Vol 273 ◽  
pp. 419-423 ◽  
Author(s):  
Ling Xiao Yang ◽  
Jing Zhang
Keyword(s):  
Control System ◽  
Vector Control ◽  
Asynchronous Motor ◽  
Estimation Method ◽  
Identification Algorithm ◽  
Speed Sensorless ◽  
Simulation Research ◽  
Sensorless Vector Control ◽  
Vector Control System ◽  
Speed Identification

According to the basic principle of vector control for the asynchronous motor, a speed sensorless vector control system of asynchronous motor is bulit which based on the Model Reference Adaptive System (MRAS) theory. The traditional MRAS speed identification algorithm is vulnerable to the effects of stator resistance, an improved method of MRAS speed identification is put forward. A simulation model of the speed sensorless vector control system based on MRAS is bulit in Matlab/simulink, the simulation results show that the speed estimation method can accurately calculate the speed of motor.

Regulator Design of Vector Control System

2011 ◽  
Vol 383-390 ◽  
pp. 7082-7089
Author(s):  
Ying Yang ◽  
Jing Yuan ◽  
Hu Zhang
Keyword(s):  
Control System ◽  
Vector Control ◽  
Design Method ◽  
Current Loop ◽  
Speed Sensorless ◽  
Decoupling Method ◽  
Pi Regulator ◽  
Sensorless Vector Control ◽  
Voltage Compensation ◽  
Vector Control System

A Decoupling method based on feedforward voltage compensation is adopted to eliminate completely the coupling between exciting current and torque current. Based on conventional design methods of single-variable linear system , the paper analyses and designs detailedly the flux loop, speed loop and current loop. A design method based on double closed-loop PI regulator for speed sensorless vector control system is proposed. Through experimental results, we demonstrate its good performance.

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