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Power loss analysis and comparison of two full-bridge converters with auxiliary networks

机译:两个带辅助网络的全桥转换器的功率损耗分析和比较

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摘要

A passive auxiliary network consisting of capacitors and inductors can be added to the conventional phase-shifted full-bridge (FB) converter to achieve zero-voltage switching for all primary switches in the whole load range. Meanwhile, accurate loss analysis facilitates the proposal of novel methods to reduce losses, optimisation of converter topology and improvement of the efficiency. In this study, the detailed loss analysis of FB converters with auxiliary networks is performed, and a novel simplified loss analysis model is given. Based on the loss model, the losses of FB converter with p-type auxiliary network and Y-type auxiliary network are studied and compared thoroughly. Finally, the analytical research is verified experimentally.
机译:可以将由电容器和电感器组成的无源辅助网络添加到传统的移相全桥(FB)转换器中,以实现整个负载范围内所有初级开关的零电压开关。同时,精确的损耗分析有助于提出减少损耗,优化转换器拓扑结构和提高效率的新方法。在这项研究中,对带有辅助网络的FB转换器进行了详细的损耗分析,并给出了一种新颖的简化损耗分析模型。基于损耗模型,对具有p型辅助网络和Y型辅助网络的FB变换器的损耗进行了研究和比较。最后,对分析研究进行了实验验证。

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  • 来源
    《Power Electronics, IET》 |2012年第9期|p.1934-1943|共10页
  • 作者

    Chen Z.; Liu S.; Shi L.; Ji F.;

  • 作者单位

    Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics and Astronautics, No. 29 Yudao Street, Nanjing 210016 Jiangsu Province, People's Republic of China;

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  • 正文语种 eng
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