Title :
Improved speed regulation of an excitation controlled induction motor
Author :
Islam, Syed Mofizul ; Somuah, Clement B. ; Ahmed, Mohammed Shahgir ; Abdel-Magid, Youssef L.
Author_Institution :
Dept. of Electr. Eng., Sultan Qaboos Univ., Muscat, Oman
Abstract :
Recent trends in variable speed AC motor drives are toward achieving high performance and high efficiency. Speed regulation of a voltage-decoupled induction motor that provides optimal efficiency and quick response is discussed. Although present-day motor drive applications demand robust and faster control techniques, there are only few applications of modern control theory to AC drives. A robust first-order model reference adaptive control (MRAC)-based speed controller whose stability has been proved via Lyapunov´s second method is proposed. Computer application to a 100 hp induction motor shows the capability of the proposed controller by investigating the transient response and robustness of the drive system
Keywords :
Lyapunov methods; control system analysis; controllers; digital control; exciters; induction motors; machine control; machine theory; model reference adaptive control systems; optimal control; stability; transient response; variable speed drives; velocity control; 100 hp; Lyapunov methods; controller; digital control; efficiency; excitation; induction motor; machine control; model reference adaptive control; performance; robustness; speed control; stability; transient response; variable speed AC motor drives; AC motors; Adaptive control; Application software; Computer applications; Control theory; Induction motors; Motor drives; Robust control; Robust stability; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
