Design and Analysis of a Novel Mechanical Variable Flux Interior Permanent Magnet Synchronous Motor

Abstract

In this paper, a novel mechanical variable flux interior permanent magnet synchronous motor (MVF-IPMSM) is proposed. Based on the basic topology and operating principle of MVF-IPMSM, the effect of the special PMs structure in the new rotor topology on the air gap magnetic field and the design of the mechanical magnetic adjustment device of the proposed motor are analyzed, in which the finite element analysis (FEA) method is adopted. The electromagnetic characteristics of the MVF-IPMSM are analyzed including internal magnetic field distribution, air gap flux density, and torque characteristics. Furthermore, the ability of magnetic field regulation is also analyzed which can be reflected by the torque-speed and power-speed envelopes. Finally, a prototype is manufactured and tested. The measured results are compared with the FEA results, and the prototype experiments verify the effectiveness and feasibility of the design of the proposed MVF-IPMSM.

Review of Development of High Power and High Torque Density Motor

“…(1) Background With the rapid development of our country's economy and the continuous improvement of people's living standards, the market demand for household appliances, as daily necessities, is increasing year by year [1]. As the core component of household appliances, the performance of motors directly affects the overall performance of household appliances [2].…”

Multi‐objective hierarchical optimisation design and experimental verification of an alterable‐magnetic‐circuit variable‐flux memory machine

“…In the series type VFMMs, the low‐ H C PM is easy to be magnetised via magnetising pulse current, resulting in a higher and more stable working point of low‐ H C PM and stronger TPC. However, the flux regulation capability (FRC) of the machine is limited [12, 13].…”