Comparative Study of Various Methods of Gain Selection of Adaptive Proportional Observer Taking into Consideration Dynamic Properties in Generation Mode of Induction Motor

摘要

The paper presents problems related to the stability of adaptive proportional observer used in sensorless field oriented induction motor drive, operating in generation mode. The gain matrix of the observer was determined by pole placement method using two different pole placement principles. The dynamic properties of the observer for both principles were compared. The paper presents selected results of laboratory tests performed for many dynamic states of sensorless control system.