Analysis of Underwater Integrated Motor Propulsor Through Multi-field Coupled Method

摘要

A kind of integrated motor propulsor which can be used in underwater propulsion is designed in this paper, and the rotor of its propelling motor employs the Halbach structure. This paper considers the characteristics of integrated motor propulsor, and coupling model of the motor is established. Timestepping finite element method is used to analyze the field-circuit coupling problem, and research in the aspect of electromagnetism-thermal coupling is developed. The back emf and temperature are measured through experiments, and the comparison between calculation and tests results suggests that the method to solve multi-field coupling problem proposed in this paper is exact and effective.