Advances in Thermal Management Technologies of Electrical Machines

Qingsong Wang, Yu Wu, Shuangxia Niu and Xing Zhao
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Qingsong Wang: Department of Electrical Engineering, École de Technologie Supérieure, Montreal, QC H3C 1K3, Canada
Yu Wu: State Grid Jiangxi Power Supply Service Management Center, Nanchang 330032, China
Shuangxia Niu: Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China
Xing Zhao: Department of Electronics, University of York, York YO10 5DD, UK

Energies, 2022, vol. 15, issue 9, 1-17

Abstract: Given the fact that the operation of electrical machines generates various loss components that finally become heat, developing advanced thermal management technologies is essential to control temperature increases and to guarantee safe operations. Meanwhile, the armature winding can stand larger currents when the machines are equipped with advanced cooling systems, which directly improves torque/power densities. This paper aims to provide a systematic review of the latest developments of advanced thermal management technologies of electrical machines. According to different heat dissipation mechanisms, the cooling systems studied in this paper are categorized into five major types: enclosed housing cooling, enhanced conductive cooling, embedded heat pipe cooling, direct oil cooling, and enhanced rotor cooling. The advantages and disadvantages of these cooling systems are researched and compared comprehensively. This study contributes to the revelation of insights on the thermal management of electrical machines and offers good guidance for the thermal management of electrical machines.

Keywords: conductive cooling; direct oil cooling; electrical machine; jacket cooling; thermal management; torque density (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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