电工技术学报  2019, Vol. 34 Issue (8): 1647-1656    DOI: 10.19595/j.cnki.1000-6753.tces.180585
电力电子 |
正-反激组合变换器的能量传输模式及输出纹波电压分析
刘树林1, 曹剑1, 胡传义1, 严纪志1, 王传良1,2
1. 西安科技大学电气与控制工程学院 西安 710054;
2. 陕西中兴祥林电子科技有限公司 西安 710065
Energy Transmission Modes and Output Ripple Voltage of Forward-Flyback Converter
Liu Shulin1, Cao Jian1, Hu Chuanyi1, Yan Jizhi1, Wang Chuanliang1,2
1. College of Electrical and Control Engineering Xi’an University of Science & Technology Xi’an 710054 China;;
2. Shaanxi ZTE Xianglin Electronic Technology Co. Ltd Xi’an 710065 China;
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摘要 为给正-反激组合变换器的设计和研制提供理论指导,对其能量传输模式进行深入研究,发现反激部分工作于连续导电模式(CCM)和不连续导电模式(DCM)时分别存在六种和四种能量传输模式,并推导出各工作模式之间的临界电感,分析得出反激部分工作于CCM时对应各能量传输模式的变压器临界电感随电感的减小而增大。推导出各模式的输出纹波电压解析式并进行对比分析,指出反激部分工作于不完全电感供能时,输出纹波电压随变压器电感的增大而减小;而工作于完全电感供能时,却与变压器电感无关,且随电感的减小而减小,此时,仅需较小的输出滤波电容和电感就可满足输出纹波电压指标要求。仿真与实验结果验证了理论分析的正 确性。
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刘树林
曹剑
胡传义
严纪志
王传良
关键词 正-反激能量传输模式临界电感输出纹波电压    
Abstract:The energy transmission modes (ETM) of forward-flyback converter were deeply studied to provide theoretical guidance for its design and development. When the flyback part works in continuous conduction mode (CCM) and discontinuous conduction mode (DCM), there are six kinds and four kinds of energy transfer modes of the ETM respectively. The critical inductances among ETMs were obtained, and the critical inductances of transformer in CCM increase with the decrease of inductance. The expression of the output ripple voltage (ORV) in each ETM was deduced. It is pointed out that the ORV decreases with increasing the inductance of transformer when flyback part works in incomplete inductor supplying mode. However, the ORV is independent of the transformer inductance in complete inductor supplying mode and decreases with decreasing inductance. Meanwhile, only a small inductance and capacitance are needed to meet the requirement of ORV. Simulation and experimental results verify the correctness of the theoretical analysis.
Key wordsForward-flyback    energy transmission modes    critical inductance    output ripple voltage   
收稿日期: 2018-04-10      出版日期: 2019-05-05
PACS: TM46  
基金资助:国家自然科学基金(51777167、51604217)和陕西省技术创新引导专项计划(2017CGZH-XNXQ/GJ-09)资助项目
通讯作者: 刘树林 男,1964年生,博士,教授,博士生导师,主要从事开关变换器的分析与设计及本质安全电路研究工作。   
作者简介: 曹 剑 男,1993年生,硕士研究生,研究方向为电力电子与电力传动。E-mail: nearlygod@163.com
引用本文:   
刘树林, 曹剑, 胡传义, 严纪志, 王传良. 正-反激组合变换器的能量传输模式及输出纹波电压分析[J]. 电工技术学报, 2019, 34(8): 1647-1656. Liu Shulin, Cao Jian, Hu Chuanyi, Yan Jizhi, Wang Chuanliang. Energy Transmission Modes and Output Ripple Voltage of Forward-Flyback Converter. Transactions of China Electrotechnical Society, 2019, 34(8): 1647-1656.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.180585          https://dgjsxb.ces-transaction.com/CN/Y2019/V34/I8/1647