Flux Control Range Broadening and Torque Ripple Minimization of a Double Excitation Synchronous Motor

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Hoang, Trung-Kien | Vido, L. | Gabsi, M. | Gillon, F.

Edité par HAL CCSD ; Institute of Electrical and Electronics Engineers

International audience. This paper presents performance improvements of a double excitation synchronous motor by using a reluctance network (RN). The distinguishing feature of the double excitation principle is to use permanent magnets with high energy, while air-gap flux is flexibly controlled by field windings. Therefore, the first contribution of this paper focuses on maximizing air-gap flux range control. Second, an approach for torque ripple reduction is proposed by directly modifying air-gap flux according to the instantaneous torque profile. The achieved resultant torque stays almost constant for a case study. The validity of the RN method is examined by comparisons with 3-D finite element and experimental results for several machines.

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