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基于复形法的LLC谐振变换器最优设计方法及其实现

Keywords: LLC~谐振变换器,复形法,最优设计

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Abstract:

以效率为优化目标,以品质因数~$Q$、励磁电感与谐振电感的比值~$h$~以及磁性元件的工作磁通~$B_{\rmmax}$~为优化变量,详细给出了实现最优设计的各个步骤,包括损耗建模、边界条件的推导以及最优解的求解流程.最后制作了一台~100kHz、300W~的样机.给出了最优设计与可行设计的理论与实验对比结果.实验结果证明了该最优设计方法的有效性和准确性.

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