|
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 in this paper. 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 in this paper. 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., |
