Speed Control of Complementary and Modular Linear Flux-Switching Permanent-Magnet Motor

Abstract

To overcome the drawbacks of conventional linear flux-switching permanent-magnet (FSPM) motors split directly from the rotary FSPM motor, the topology, operation principle, and static thrust performances of a new series of complementary and modular linear FSPM (CMLFSPM) motors with different mover/stator pole pitch ratio have been investigated. However, the existing researches mainly focus on the principle and static performance of this MLFSPM motor. In this paper, the closed-loop speed control performance of this kind of motor based on primary flux-oriented control is investigated. First, the research status of linear FSPM motor is introduced. Second, the mathematical model in the dq coordinate and the control scheme of a CMLFSPM motor are presented. Then, the proposed control strategies of the CMLFSPM motor are verified by using MATLAB/Simulink. Finally, the experiments on a prototype of the proposed motor are carried out to validate the study of closed-loop speed control.