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5. A Linear-Rotary Permanent Magnet Actuator with Partitioned Stator

Author

Shuhua Fang, Hui Yang, Ni Haimiao, and Heyun Lin

Subjects
010302 applied physics, Engineering, Electropermanent magnet, business.industry, Magnetic reluctance, Stator, 020208 electrical & electronic engineering, Torque density, 02 engineering and technology, Permanent magnet synchronous generator, Structural engineering, 01 natural sciences, law.invention, Magnetic circuit, Magnetic core, Control theory, law, Magnet, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, business
Abstract

This paper proposes a novel partitioned- stator liner-rotary permanent magnet actuator (PS- LRPMA) which separates the stator into an inner one and an outer one. Compared with current LRPMA, the magnetic reluctance of the PS-LRPMA is decreased and the flux leakage is reduced by shortening the magnetic circuit, which flows through the iron core of the rotor. Three-dimensional finite element method (FEM) is used to analyze the magnet field distribution, the static and dynamic performance. The simulated results show that the PS-LRPMA has excellent electromagnetic performance, such as higher thrust and higher torque density.

Published
2016
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