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论文类型：期刊论文

发表时间：2011-05-01

发表刊物：Journal of Control Theory and Applications

收录刊物：EI

卷号：9

期号：2

页面范围：203-209

摘要：This paper addresses the problem of wide speed range sensorless control of induction motor. The proposed method is based on model reference adaptive system (MRAS), in which the current model serves as the adjustable model, and a novel hybrid model integrating the modified voltage model (MVM) and high-frequency signal injection method (HFSIM) are established to serve as the reference model. The HFSIM works together with MVM to improve the performance of the rotor speed and rotor flux position estimation at low speed, whereas at high speed, the MVM acts alone. In addition, a rotor resistance online estimation scheme is proposed to update the rotor resistance contained in the adjustable model and to ensure the estimation accuracy further. Experimental results show that the proposed MRAS method is very effective from low to high speed range, including zero speed. © 2011 South China University of Technology, Academy of Mathematics and Systems Science, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.