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Sensorless control of direct-field-oriented induction motor operating at high efficiency using adaptive rotor flux observer

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3 Author(s)
Yamada, T. ; Dept. of Electr. Eng., Meiji Univ., Kawasaki, Japan ; Matsuse, K. ; Sasagawa, K.

The speed sensorless control of direct-field-oriented induction motors using an adaptive rotor flux observer was developed recently. This method drives the induction motor using a constant-rated rotor flux in order to estimate rotor speed without loss of accuracy and to prevent degeneration of dynamic response. However, the driving efficiency of the field-oriented induction motor must be maximized for applications such as electric vehicles which have a limited power supply. The authors apply rotor flux control which enables high-efficiency sensorless direct-field-oriented induction motor systems to be developed. Using experimental and simulation results, this paper shows the advantages of sensorless direct-field-oriented induction motor control using an adaptive rotor flux observer

Published in:

Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on  (Volume:2 )

Date of Conference:

5-10 Aug 1996