Rotor Flux and Speed Observers for Induction Motors
نویسندگان
چکیده
Abstract— The objective of this paper is to investigate the use of observers in the sensorless control of induction motor drives. First, three recently proposed rotor flux and speed observers for induction motors are analyzed and compared using a unified notation. Unresolved issues for each method are noted. Then, an alternative rotor flux and speed observer architecture is described, which is simulated and tested experimentally. The conclusion of our study is that observers can perform well estimating the rotor speed and the estimates can be used in a control strategy instead of speed values obtained by the sensors.
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