| 交错并联双向直流变换器的一种新型相频控制策略 |
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| 引用本文： | 杨玉岗,江威,苗闯,张书淇.交错并联双向直流变换器的一种新型相频控制策略[J].电源学报,2018,16(5):25-30. |
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| 作者姓名： | 杨玉岗 江威 苗闯 张书淇 |
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| 作者单位： | 辽宁工程技术大学电气与控制工程学院 |
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| 基金项目： | 国家自然科学基金委员会-山西省人民政府煤基低碳联合基金资助项目（U1510128）；辽宁省教育厅重点实验室基础研究资助项目（LZ2015045） |
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| 摘 要： | 为解决多相DC/DC变换器轻载工作效率低的问题,提出了一种用于多相交错并联DC/DC变换器的相频结合的控制方式,该控制方式能够有效提高变换器的中轻载效率。多相交错并联DC/DC变换器采取减少工作相数的方式降低开关管损耗,提高一定负载范围内的效率。在PFM频率控制技术的基础上,通过多频控制技术,提高变换器的轻载效率。而针对更轻负载变换器采取PSM频率控制技术,提高变换器的能量传输效率。相频控制的结合应用能够拓宽变换器的高效运行区间,提高变换器全负载范围内的效率。最后,通过实验验证了理论推导的正确性。
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| 关 键 词： | 相频控制 多相交错并联 轻载效率 |
| 收稿时间： | 2016/11/29 0:00:00 |
| 修稿时间： | 2018/3/21 0:00:00 |
Novel Phase-frequency Control Strategy for Interleaved Parallel Bidirectional DC/DC Converter |
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| YANG Yugang,JIANG Wei,MIAO Chuang and ZHANG Shuqi.Novel Phase-frequency Control Strategy for Interleaved Parallel Bidirectional DC/DC Converter[J].Journal of power supply,2018,16(5):25-30. |
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| Authors: | YANG Yugang JIANG Wei MIAO Chuang and ZHANG Shuqi |
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| Affiliation: | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China,Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China,Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China and Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China |
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| Abstract: | To solve the problem of low efficiency of a multi-phase DC/DC converter in light-load status, a phase-frequency control method is proposed for a multi-phase interleaved parallel DC/DC converter, which can effectively improve the efficiency of the converter in middle- and light-load statuses. The number of working phases is reduced to lower the switch tube loss, and thus improve the efficiency of the multi-phase interleaved parallel DC/DC converter in a certain load range. On the basis of PFM frequency control technology, multi-frequency control technology is used to improve the efficiency of the converter in light-load status. Meanwhile, PSM frequency control technology is used to improve the energy transfer efficiency of the converter in lighter-load status. The phase-frequency control can broaden the high-efficient operation range of the converter, and improve its efficiency in a full-load range. Finally, the correctness of the theoretical deduction was verified by experiments. |
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| Keywords: | phase-frequency control multi-phase interleaved parallel efficiency of light-load statu |
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