Small Speed Asymptotic Stability Study of an Induction Motor Sensorless Speed Control System with Extended Gopinath Observer

Advances in Electrical and Computer Engineering

PANA, T. ; STOICUTA, O..

关键词: extended Gopinath observer;    induction motor;    vector control system;    direct rotor flux orientation method;    asymptotic stability;    sensorless;   

DOI  :  10.4316/AECE.2011.02003

学科分类：计算机科学（综合）

来源: Universitatea "Stefan cel Mare" din Suceava

【 摘 要 】

The paper presents a synthesis of an extended Gopinath observer (EGO) and analyzes the asymptotic stability of a squirrel-cage induction motor vector control system with an EGO in its loop. The considered control system is based on the direct rotor flux orientation method (DFOC) and the study of stability is based upon the linearization theorem applied around the equilibrium points of the control system, emphasizing the estimated variation domain of the rotor resistance for which the control system remains asymptotically stable.

【 授权许可】

Unknown