Hybrid Excited Permanent Magnet Motor: Analytical Sizing, Finite Element Analysis and Tests

This article deals with a full procedure to design a Hybrid Excitation Permanent Magnet (HEPM) synchronous motor. At first the analytical initial sizing is described. It is followed by a more comprehensive two-dimensional finite element analysis. Then, the estimated motor capability is confirmed through experimental measurements on a HEPM motor prototype. The article gives information on the motor geometry, magnetic circuit, parameter determination, and motor alignment. The procedures for analyzing the motor under no-load and on-load conditions are described. At last, the predicted results are compared to measurements on a test bench.