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Design, Analysis, and Control of DC-Excited Memory Motors

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2 Author(s)
Chuang Yu ; Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China ; Chau, K.T.

In this paper, a new type of memory motors, namely the dc-excited memory motor, is proposed and implemented. The concept of dc-excited memory is due to the nature that the magnetization level of permanent magnets (PMs) in the motor can be regulated by a temporary dc current pulse and be automatically memorized. Based on an outer-rotor doubly salient motor structure, the proposed dc-excited memory motor can offer effective and efficient online air-gap flux control. Hence, it possesses the advantages of mechanical robustness, high efficiency, and wide constant power operation region. Both simulation and experimentation are carried out to verify the validity of the proposed motor.

Published in:

Energy Conversion, IEEE Transactions on  (Volume:26 ,  Issue: 2 )