基于计算流体力学的非晶合金轴向磁通永磁电机冷却系统设计

doi:10.19595/j.cnki.1000-6753.tces.160137

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Abstract

In this paper, a new type of material amorphous alloy is used as the stator of axial flux permanent magnet (AFPM) motor. The stator core of amorphous alloy and silicon steel sheet are developed, and their loss characteristics are compared. The test data show the iron core using amorphous alloy instead of silicon steel can decrease the loss of motor．However, due to the selection of high frequency, the loss in the rotor increases. In order to further improve the cooling efficiency of amorphous alloy AFPM motor and optimize the motor design to ensure the safe operation of the motor, the cooling system is designed in this paper. Four kinds of cooling structures are studied. The corresponding mathematical and physical models of 3D fluid field are established based on computational fluid dynamics (CFD). Under the same calculation and meshing conditions, the thermal and flow characteristics of these four kinds of cooling structures are studied by the finite volume method. The spiral structure is optimized and the specific size parameters are designed. Finally, the temperature rise tests of the parallel and spiral structure are carried out. The results show that, the cooling efficiencies of spiral structure in windings and rotor are increased 33.1% and 26.5% respectively, much higher than those of parallel structure. It provides guidance for using this new material to design cooling structure and optimize electromagnetic scheme of permanent magnet motors.

Key words： Amorphous alloy axial flux permanent magnet (AFPM) motor cooling structure finite volume method temperature field

Received: 22 January 2016 Published: 30 October 2017

PACS:

TM315

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	Han Xueyan
	Zhang Huawei
	Xu Xin
	Lan Yuhua

Cite this article:

Han Xueyan,Zhang Huawei,Xu Xin等. Design of Cooling System for Amorphous Alloy Axial Flux Permanent Magnet Motor Based on Computational Fluid Dynamics[J]. Transactions of China Electrotechnical Society, 2017, 32(20): 189-197.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160137 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I20/189

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