Performance Evaluation of Novel Segmental Rotor Switch Reluctance Motor with Magnetic Bridge

The segmented rotor switched reluctance motor (SSRM) has the characteristics of a short magnetic circuit, high torque density, low wind resistance, and high efficiency compared to the traditional switched reluctance motor (SRM). However, the complex manufacturing process of SSRM acts against their use. In this paper, a new type of segmented rotor switched reluctance motor with a rotor magnetic bridge (SSRMMB) is proposed, which connects the rotor blocks into a whole. The static inductance characteristics of the SSRM and SSRMMB are investigated through electromagnetic simulation. The performance of the two motors is then comparatively analyzed under angle position control (APC) and unipolar sinusoidal excitation control (USC), with a further analysis of the reasons for any differences. The simulation results show that there is little difference in the performance of the two motors during normal operation.