Precise Characteristics Analysis of Series/Series-Parallel Compensated Contactless Resonant Converter
Precise Characteristics Analysis of Series/Series-Parallel Compensated Contactless Resonant Converter
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DOI：
10.1109/jestpe.2014.2320524
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发表时间：
2015-03
影响因子：
5.5
通讯作者：
J. Hou;Qianhong Chen;X. Ren;X. Ruan;Siu‐Chung Wong;C. Tse
中科院分区：
文献类型：
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作者：
J. Hou;Qianhong Chen;X. Ren;X. Ruan;Siu‐Chung Wong;C. Tse
串联/串并联（S/SP）补偿的非接触谐振转换器具有对包括Transformer的耦合系数的参数的变化不敏感的期望特征。然而，使用基波近似所产生的误差是显着的，从而使设计过程复杂化，影响控制的有效性。本文对S/SP变换器进行了精确的特性分析。推导了S/SP谐振回路的广义等效电路，揭示了波形畸变的原因。然后，给出了谐振回路的关键变量和输出电压增益的更精确的表达式。最后，一个1.5千瓦的无接触谐振变换器与S/SP补偿。实验结果与计算结果吻合较好。
The series/series-parallel (S/SP) compensated contactless resonant converter has a desirable feature of being insensitive to variation of parameters including the transformer's coupling coefficient. However, the error resulting from the use of fundamental harmonic approximation is significant, thus complicating the design procedure and affecting the effectiveness of the control. In this paper, a precise characteristics analysis of the S/SP converter is presented. A generalized equivalent circuit of the S/SP resonant tank is derived, and the cause of the waveform distortion is revealed. Then, more accurate expressions for the key variables of the resonant tank and the output voltage gain are given. Finally, a 1.5 kW contactless resonant converter with S/SP compensation is constructed. Experimental results are in good agreement with the calculated results.