考虑低速稳定性的感应电机转子磁场定向校正策略  

A Rotor Field Orientation Correction Strategy of Induction Motor Considering Low-speed Stability

作　　者：杨其林 钟志宏[2] 方晓春[2] 马法运 张佳波 YANG Qilin;ZHONG Zhihong;FANG Xiaochun;MA Fayun;ZHANG Jiabo(CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd., Qingdao Shandong 266031,China;Beijing Jiaotong University,Beijing 100044, China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031 [2]北京交通大学电气工程学院,北京100044

出　　处：《微电机》2021年第3期78-82,共5页Micromotors

摘　　要：感应电机的转子磁场定向控制中,磁场定向角的准确性影响着电机的转矩输出性能。在速度测量准确的场合,转子定向角主要受转子电阻误差的影响,而转子电阻校正又受到定子电阻误差的影响。目前,较少的论文对转子电阻和定子电阻同时进行补偿,且同时补偿下的稳定性问题也鲜有研究。该文提供了一种新型的基于MRAS的转子电阻和定子电阻补偿策略,经李雅普诺夫稳定性理论验证,该策略可以保证系统在低速下的稳定性。经5.5 kW试验平台验证,该策略可以有效提升转子磁场定向控制在低速下的转矩输出性能。In the rotor field orientation control of induction motor,the accuracy of the field orientation angle affects the torque output performance of the motor.In the case of accurate speed measurement,the rotor orientation angle is mainly affected by the rotor resistance error,and the rotor resistance correction is affected by the stator resistance error.At present,there are few papers to compensate for rotor resistance and stator resistance at the same time,and the stability problem under simultaneous compensation is rarely studied.This article provided a new MRAS-based rotor resistance and stator resistance compensation strategy,which had been verified by Lyapunov's stability theory.Verified by the 5.5kW motor platform,this strategy can effectively improve the torque output performance of rotor field-oriented control at low speed.

关 键 词：低速 转子磁场定向 转子电阻 定子电阻 稳定性 

分 类 号：TM346[电气工程—电机]