Design and analysis of a novel hybrid cooling method of high-speed high-power permanent magnet assisted synchronous reluctance starter/generator in aviation applications  

作　　者：Hong GUO Xu HE Jinquan XU Wei TIAN Xiaofeng DING Laicai JU Dehong LI 

机构地区：[1]School of Automation Science and Electrical Engineering,Beihang University,Beijing 100083,China [2]Science and Technology on Aircraft Control Laboratory,Beihang University,Beijing 100083,China [3]Ningbo Innovation Research Institute,Ningbo 315800,China [4]School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China [5]Beijing Shuguang Aviation Electric Co.LTD,Beijing 101300,China [6]Aviation Industry Helicopter Design and Research Institute,Jingdezhen 333001,China

出　　处：《Chinese Journal of Aeronautics》2023年第3期285-302,共18页中国航空学报（英文版）

基　　金：co-supported by the National Natural Science Foundation of China(No.52177028);in part by the Aeronautical Science Foundation of China(No.201907051002)。

摘　　要：To improve the heat dissipation performance,this paper proposes a novel hybrid cooling method for high-speed high-power Permanent Magnet assisted Synchronous Reluctance Starter/Generator(PMa Syn R S/G)in aerospace applications.The hybrid cooling structure with oil circulation in the housing,oil spray at winding ends and rotor end surface is firstly proposed for the PMa Syn R S/G.Then the accurate loss calculation of the PMa Syn R S/G is proposed,which includes air gap friction loss under oil spray cooling,copper loss,stator and rotor core loss,permanent magnet eddy current loss and bearing loss.The parameter sensitivity analysis of the hybrid cooling structure is proposed,while the equivalent thermal network model of the PMa Syn R S/G is established considering the uneven spraying at the winding ends.Finally,the effectiveness of the proposed hybrid cooling method is demonstrated on a 40 k W/24000 r/min PMa Syn R S/G experimental platform.

关 键 词：Air gap friction loss Oil spray cooling Permanent magnet assisted synchronous reluctance starter/generator Thermal analysis Thermal network model 

分 类 号：V242[航空宇航科学与技术—飞行器设计]