Overview of Cooling Technologies for Aviation Permanent Magnet Propulsion Motors

ZHANG Zhuoran; XUE Han; GAO Huamin; LIN Qiuyu; HUA Yuxi

doi:10.13334/j.0258-8013.pcsee.251335

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Overview of Cooling Technologies for Aviation Permanent Magnet Propulsion Motors

更新时间：2026-10-10

- Overview of Cooling Technologies for Aviation Permanent Magnet Propulsion Motors
- Vol. 46, Issue 15, Pages: 6506-6527(2026)
- 作者机构：
  
  多电飞机电气系统工信部重点实验室(南京航空航天大学),江苏省,南京市,211106
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.251335
  CLC：
- Published：2026
- 稿件说明：
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ZHANG Zhuoran, XUE Han, GAO Huamin, et al. Overview of Cooling Technologies for Aviation Permanent Magnet Propulsion Motors[J]. 2026, 46(15): 6506-6527.
DOI：

ZHANG Zhuoran, XUE Han, GAO Huamin, et al. Overview of Cooling Technologies for Aviation Permanent Magnet Propulsion Motors[J]. 2026, 46(15): 6506-6527. DOI： 10.13334/j.0258-8013.pcsee.251335.

摘要

永磁推进电机是航空电推进系统的核心动力装置，其高效冷却技术对推进电机的性能提升和可靠运行至关重要。与地面电机和传统航空电机相比，航空永磁推进电机的冷却技术面临着更加严峻且特殊的要求和挑战，亟待进一步研究与突破。该文首先从多个维度归纳了推进电机冷却技术的特征、要求与分类。由航空推进电机及其冷却系统的特殊性出发，系统讨论高功率/转矩密度永磁推进电机传导传热技术、对流传热技术及相变传热技术的作用机理、研究现状以及在不同航空电推进系统中的适用性；在此基础上，对推进电机新型冷却技术、推进电机及逆变器集成化冷却技术及推进电机与桨扇动力装置综合热管理技术发展趋势进行系统展望。

Abstract

The permanent magnet (PM) propulsion motor is a critical power component in aviation electric propulsion systems

where efficient cooling technology is essential for enhancing motor performance and ensuring reliable operation. Compared with ground-based motors and conventional aviation motors

the cooling technologies for aviation PM propulsion motors face more stringent and specialized requirements and challenges

necessitating further research and breakthroughs. This paper first summarizes the characteristics

requirements

and classifications of cooling technologies from multiple dimensions. Considering the unique characteristics of aviation propulsion motors and their cooling systems

it systematically discusses the mechanisms

current research progress

applicability of thermal conduction

convective heat transfer

and phase-change heat transfer technologies for high power/torque density PM propulsion motors across various types of aviation electric propulsion systems. On this basis

the development trends of new cooling technologies for propulsion motors

integrated cooling of propulsion motors and inverters

and comprehensive thermal management for propulsion motors and propulsor units are systematically reviewed.

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