电力系统保护与控制2024，Vol.52Issue(8)：178-187,10.DOI:10.19783/j.cnki.pspc.231216
基于改进混合模型转子磁链观测器的异步电机无速度传感器控制
Speed-sensorless control of an asynchronous motor based on an improved hybrid model rotor flux observer
摘要
Abstract
There is a problem of poor control accuracy of speed-sensorless control of an asynchronous motor due to inaccurate estimation of rotor flux.Thus an improved hybrid model rotor flux observer design method is proposed.First,the conventional flux observation method of an asynchronous motor is introduced,and the main problems of the conventional Gopinath rotor flux observer are analyzed in detail using the complex vector model and characteristic function of asynchronous motor.Secondly,an improved characteristic function design method is proposed to solve the drawbacks of the conventional rotor flux observer,and then an improved hybrid model flux observer is obtained.Thirdly,the parameter sensitivity of the conventional Gopinath rotor flux observer and the improved hybrid model rotor flux observer are further compared based on the characteristic and frequency response functions.Finally,the speed-sensorless control of the asynchronous motor is realized using the flux observation results of the proposed hybrid model rotor flux observer and the phase-locked loop.The comparative experimental results based on StarSim and YXSPACE-SP2000 experimental platforms verify the parameter robustness of the hybrid model rotor flux observer proposed,as well as the effectiveness of the proposed speed-sensorless control strategy.关键词
异步电机/混合模型磁链观测器/特征函数/参数灵敏性/无速度传感器Key words
asynchronous motor/hybrid model flux observer/characteristic function/parameter sensitivity/speed-sensorless引用本文复制引用
郭磊磊,靳雪妍,朱虹,李琰琰,王帅,金楠..基于改进混合模型转子磁链观测器的异步电机无速度传感器控制[J].电力系统保护与控制,2024,52(8):178-187,10.基金项目
This work is supported by the Science and Technology Key Project of Henan Province(No.232102241026). 河南省科技攻关项目资助(232102241026) （No.232102241026）
河南省优秀青年科学基金项目资助(242300421074) （242300421074）
