volume | PIER Journals

Abstract

This paper proposes a novel equivalent thermal network (ETN) model for permanent magnet vernier (PMV) machines, featuring a detailed in-slot mesh to address the challenges in analyzing the temperature distribution within the slot. The key innovation is the equivalent analytical mesh, which is the equivalent mesh derived through analytical methods. Firstly, a systematic in-slot mesh partitioning method is presented to solve the temperature distribution in the slot. The method includes detailed mathematical derivation and implementation processes. The novel mesh provides high computational accuracy while maintaining uniform modeling requirements. Secondly, an accelerated solution framework combining a lumped parameter thermal network (LPTN) with the ETN topology is introduced. This hybrid approach significantly reduces both computational time and modeling complexity for temperature field analysis. Finally, thermal testing was conducted on the PMV machine prototype. The accuracy of the proposed ETN model is validated compared to both computational fluid dynamics (CFD) simulations and experimental measurements.

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Mr. Yuxiao Wang

Dr. Zhengmeng Liu

Dr. Hao Ke

Dr. Qian Chen

Dr. Guohai Liu