Magnetic Equivalent Circuit Modeling of Partitioned Stator Doubly Salient Permanent Magnet Machines

In this paper, the magnetic equivalent circuit (MEC) modeling of partitioned stator doubly salient permanent magnet machines (PS-DSPM) is presented. An analytical methodology is proposed to model the air-gap flux in piecewise intervals, and the stator and rotor steel are modeled as fixed permeances. The MEC model is then implemented and executed in a time-stepped simulation. The magnetic flux characteristics and phase EMF of an example PS-DSPM are compared with finite element analysis (FEA). Especially, the two sizes of PS-DSPM machine are investigated to compare the MEC and FEM. The results obtained by MEC and FEA are in good agreement. The modeling MEC of PS-DSPM machines can be utilized for designing the same machine.