An Approximate High Gain Observer for Speed-sensorless Estimation of Induction Motors

作     者：Yebin Wang Lei Zhou Scott A.Bortoff Akira Satake Shinichi Furutani 

作者机构：IEEE Mitsubishi Electric Research Laboratories the Department of Mechanical EngineeringMassachusetts Institute of Technology the Advanced Technology R&D CenterMitsubishi Electric Corporation 

出 版 物：《IEEE/CAA Journal of Automatica Sinica》 (自动化学报（英文版）)

年 卷 期：2019年第6卷第1期

页      面：53-63页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

主　　题：Induction motor industrial applications nonlinear state estimation speed-sensorless motor drive 

摘      要：Rotor speed estimation for induction motors is a key problem in speed-sensorless motor drives. This paper performs nonlinear high gain observer design based on the full-order model of the induction motor. Such an effort appears nontrivial due to the fact that the full-model at best admits locally a non-triangular observable form(NTOF), and its analytical representation in the NTOF can not be obtained. This paper proposes an approximate high gain estimation algorithm, which enjoys a constructive design, ease of tuning, and improved speed estimation and tracking performance. Experiments demonstrate the effectiveness of the proposed algorithm.