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Prediction of starting performance of PM motors by DC decay testing method

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4 Author(s)
Yamamoto, S. ; Dept. of Electr. Eng., Polytech.. Univ., Kanagawa, Japan ; Ara, T. ; Oda, S. ; Matsuse, K.

This paper presents a method to predict the direct- and quadrature-axes operational impedances and starting performance of permanent-magnet (PM) motors by a simple standstill response testing method using a small-capacity DC power supply unit. In this method, not only the starting performance but also the direct- and quadrature-axes synchronous machine constants (synchronous, transient, and subtransient reactances) and equivalent circuit constants are calculated. This proposed strategy, tentatively named the DC decay testing method, is carried out on a 3.7-kW 200-V 22. A 100-Hz four-pole interior PM motor with a damper winding. The results measured by on-load tests and those predicted by the proposed method on starting performance demonstrate the validity and usefulness of the proposed method

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Industry Applications, IEEE Transactions on  (Volume:36 ,  Issue: 4 )