Abstract: A novel interior permanent magnet hybrid excitation synchronous machine (IPM-HESM) is proposed, its configuration characteristic and operation principle are discussed. According to the radial/axial distribution of magnetic field, equivalent magnetic circuit model is developed. Magnetic flux, flux density and induced voltage under different electrical excitation are obtained by calculating the nonlinear magnetic circuit equation. Influence of axial magnetic field on radial magnetic field is studied by 3D finite element method, and the analysis results of 3D-FEM are well-agreed with calculation of magnetic circuit model. The results indicate that flux density in air gap of IPM-HESM is famously high and magnetic field in air gap can be successfully adjusted. Equivalent magnetic circuit model and 3D finite element method developed in this paper are helpful to the more study on optimizing design and full-load characteristic of IPM-HESM.
张卓然 严仰光 苏凯程. 切向磁钢混合励磁同步电机空载磁路计算及三维场分析[J]. 中国电机工程学报, .
ZHANG Zhuo-ran YAN Yang-guang SU Kai-cheng. Magnetic Circuit Calculation and 3-Dimensional Field Analysis of IPM Hybrid Excitation Synchronous Machine Under No-load Condition. Proceeding of the CSEE, 2008, 28(30): 84-89 .