Development of Adaptive Speed Observers for Induction Machine System Stabilization

Download or read book Development of Adaptive Speed Observers for Induction Machine System Stabilization written by Ahmed A. Zaki Diab and published by Springer Nature. This book was released on 2020-01-03 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of an adaptive state observer using a mathematical model to achieve high performance for sensorless induction motor drives. This involves first deriving an expression for a modified gain rotor flux observer with a parameter adaptive scheme to estimate the motor speed accurately and improve the stability and performance of sensorless vector-controlled induction motor drives. This scheme is then applied to the controls of a photovoltaic-motor water-pumping system, which results in improved dynamic performance under different operating conditions. The book also presents a robust speed controller design for a sensorless vector-controlled induction motor drive system based on H∞ theory, which overcomes the problems of the classical controller.