電気学会論文誌D(産業応用部門誌)
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
論文
空間高調波を利用した自励式磁石フリーモータの回転子補極によるトルク特性改善
青山 真大野口 季彦
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ジャーナル フリー

2016 年 136 巻 2 号 p. 169-181

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抄録
In this paper, a synchronous motor is described in which space harmonic power is utilized for field magnetization instead of permanent magnets. The stator has a concentrated winding structure, and the rotor has two different types of winding, i.e., an induction pole (I-pole) winding that primarily retrieves the second space harmonic and an excitation pole (E-pole) winding for the field magnetization. The two coils are connected via a center-tapped full-bridge diode rectifying circuit. The effects of the rotor electromangetomotive force distribution on the d- and q-axis are theoretically discussed. Then, the effect of the auxiliary poles is experimentally verified using a prototype motor in terms of the adjustable speed drive characteristics and the efficiency map. In addition, it is experimentally clarified that the rotor self-inductance and the rotor winding resistance significantly affect the conduction period of the rotor induced current.
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