基于轻量化需求的大功率中频变压器优化设计

Optimal Design of High Power Medium Frequency Transformer Based on Channel Lightweight Requirement

分析了大功率中频变压器绕组高频损耗与铁心高频损耗的解析计算方法,建立了其优化设计流程。采用自由参数扫描法,对一台面向电力机车轻量化应用的300 k W中频变压器进行了优化设计。通过建立评价系数公式,最优方案兼顾了变压器的损耗与重量。利用电磁有限元仿真计算软件Ansoft Maxwell,分别在二维涡流场与瞬态场中,对其中6组设计方案的绕组损耗与铁心损耗进行了仿真验证。对比解析设计与有限元仿真计算结果,两者误差在可接受范围内,验证了优化设计方法的正确性与有效性。

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