电磁式双凸极电机电磁特性的理论分析

 对电磁式双凸极电机(DSEM) 的电磁特性进行理论分析。首先给出了定转子齿重叠角与转子位置角的关系式,从理论上验证了DSEM 所有极下定转子齿重叠角之和为常数。然后推导出电感和转矩的表达式,重点分析了DSEM 的电感和转矩特性,最后给出了仿真实例。理论分析与仿真结果均表明:DSEM 的电磁特性在许多方面不同于DSPM。本文将为DSEM 的进一步研究打下理论基础。

Theoretical Analysis on the Electro-Magnetic Characteristics for Doubly Salient Electro-Magnetic Machines

The doubly salient electro magnetic machine(DSEM) is a new type of brushless electrical machine, which offers an excellent balance between cost, reliability, power density, and high speed capability. Therefore, there is an excellent potential for the use of DSEM in airplanes. This paper is devoted to investigating the electro magnetic characteristics of DSEM. The relation between overlapped angles of poles and rotor position is described for DSEM, and it is validated theoretically that the sum of all overlapped angles of poles is constant. In particular, the inductance and torque characteristics are discussed in detail, and simulation results are given to show the validity of the researches in this paper. Finally, the comparison is made between DSEM and the doubly salient permanent magnet machine(DSPM)in their electro magnetic characteristics. The research results presented by the paper are useful in studying the new DSEM.