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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Improved Thermal Management and Analysis for Stator End-Windings of Electrical Machines
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Improved Thermal Management and Analysis for Stator End-Windings of Electrical Machines

机译：电机定子绕组的改进的热管理和分析

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摘要

In an electrical machine design, thermal management plays a key role in improving the performance and reducing size. End-windings are commonly identified as the machine hot-spot. Hence, lowering and predicting end-windings temperature are crucial tasks in thermal management of electrical machines. This paper proposes and investigates a noninvasive but effective cooling method that aims for a uniform cooling of a machine's winding by implementing direct cooling on its end-windings. Modeling and experimental results show that a 25% hot-spot temperature reduction on a particular application can be achieved. To analyze the proposed technique in detail, an accurate but computationally economic lumped parameter thermal network is developed. Comparison between a "standard" thermal network and its simplified equivalent (with less nodes) is presented where the models are developed and fine-tuned based on experimental data. All the above is used to investigate the potential of the proposed end-winding cooling method with different configurations of the methodology.
机译：在电机设计中，热管理在提高性能和减小尺寸方面起着关键作用。绕组末端通常被认为是机器的热点。因此，降低和预测绕组的温度是电机热管理中的关键任务。本文提出并研究了一种非侵入性但有效的冷却方法，该方法旨在通过对机器的端部绕组实施直接冷却来均匀冷却机器的绕组。建模和实验结果表明，可以在特定应用上将热点温度降低25％。为了详细分析所提出的技术，开发了一种精确但计算经济的集总参数热网络。提出了“标准”热网络与其简化的等效网络（节点较少）之间的比较，其中根据实验数据对模型进行了开发和微调。以上所有内容均用于研究所提出的采用不同方法配置的端部绕组冷却方法的潜力。

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