中南大学学报（自然科学版）2009，Vol.40Issue(5)：1318-1322,5.
基于无功功率模型的异步电机矢量控制系统转子时间常数辨识
Identification of rotor time constant based on reactive power model in vector control system of induction motor
摘要
Abstract
According to the fact that performance of vector control (VC) system is greatly affected by the change of motor parameters, model reference adaptive system (MRAS) was applied to identify rotor time constant on-line. According to rotor flux model, reactive power model was built to establish MRAS, and Popov's hyperstability theory was applied to design adaptive rule. The method of identifying rotor time constant based on reactive power model was proposed in order to improve robustness against stator resistance and identification accuracy, which reduces the influence of change of stator resistance. The method was applied in VC system of induction motor, and simulation results prove that it improves the performance of VC system effectively. The rotor flux depression and current harmonious decomposition are reduced remarkably, the observation error of rotor flux is reduced sharply to 2.87% and the error of torque is rippled greatly to 2.09%.关键词
异步电机/矢量控制/模型参考自适应/转子时间常数Key words
induction motor/ vector control/ model reference adaptive/ rotor time constant分类
信息技术与安全科学引用本文复制引用
喻寿益,张艳存,高金生,桂卫华..基于无功功率模型的异步电机矢量控制系统转子时间常数辨识[J].中南大学学报（自然科学版）,2009,40(5):1318-1322,5.基金项目
国家自然科学基金资助项目(60574030) （60574030）
