Online-Tuning of the Rotortime Constant for Three-Phase Asynchron Motors

The rotor flux oriented control is a state-of-the-art control scheme for asynchron motors. As a crucial parameter in this control scheme the rotor time constant is important for correct decoupling of the asynchronous maschine. This parameter however may change due to working conditions and therefore have a negative impact on the control accuracy. In literature one can find many adaption methods for online identification of the rotor time constant. The different methods have been classified and their properties compared. Some were implemented on a test bench to verify the simulations. not assigned KP: Partner aus der Industrie (anonym)