Modeling and analysis of oil frictional loss in wet-type permanent magnet synchronous motor for aerospace electro-hydrostatic actuator

作     者：Jinquan XU Wenbo JIN Hong GUO Tian YU Wenhu FAN Zongxia JIAO Jinquan XU;Wenbo JIN;Hong GUO;Tian YU;Wenhu FAN;Zongxia JIAO

作者机构：School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100191China Ningbo Institute of TechnologyBeihang UniversityNingbo 315800China Research Institute for Frontier ScienceBeihang UniversityBeijing 100191China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2023年第36卷第11期

页      面：328-341页

核心收录：

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：This work was supported in part by National Natural Science Foundation of China(Nos.52177028 and U2141226) in part by Major Program of the National Natural Science Foundation of China(No.51890882) in part by Aeronautical Science Foundation of China(No.201907051002) 

主　　题：Electro-hydrostatic actuator Motor dimensions Oil frictional loss Taylor vortex Wet-type permanent magnet synchronous motor 

摘      要：To improve the power density and simplify the seal structure,the Wet-Type Permanent Magnet Synchronous Motor(WTPMSM)technique has been applied to aerospace Electro-Hydrostatic Actuators(EHA).In a WTPMSM,the stator and the rotor are both immersed in the aviation hydraulic *** the heat dissipation performance of the WTPMSM can be enhanced,the aviation hydraulic oil will cost an extra oil frictional loss in the narrow airgap of the *** paper proposes an accurate oil frictional loss model for the WTPMSM,in which the wide speed range(0–20 kr/min)and the narrowness of the airgap(0.5–1.5 mm)are its ***,the mechanism of the oil frictional loss in the airgap of the WTPMSM is *** an accurate oil frictional loss model is proposed considering the nonlinear influence caused by the Taylor ***,the influence of motor dimensions on oil frictional loss is ***,the proposed oil frictional loss model is verified by experiments,which provides a guideline for engineers to follow in the WTPMSM design.