Open AccessSmall Speed Asymptotic Stability Study of an Induction Motor Sensorless Speed Control System with Extended Gopinath Observer
Author(s) -
Teodor Pana,
Olimpiu Stoicuţa
Publication year - 2011
Publication title -
advances in electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 23
eISSN - 1844-7600
pISSN - 1582-7445
DOI - 10.4316/aece.2011.02003
Subject(s) - control theory (sociology) , observer (physics) , induction motor , electronic speed control , computer science , stability (learning theory) , mathematics , control (management) , engineering , physics , artificial intelligence , electrical engineering , quantum mechanics , voltage , machine learning
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