一种高增益直流变换器的分析
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摘要
在新能源发电并网系统中,需采用非隔离高增益直流变换器,而传统Boost变换器要取得高增益时需占用极大占空比,因此根据耦合电感和倍压单元提出一种耦合电感倍压单元高增益直流变换器。分析了变换器工作原理与特性,并通过仿真验证了理论分析的正确性。
In the new energy grid-connected generation system,non-isolated high voltage gain DC/DC converters are needed.Traditional Boost converters require a high duty cycle when achieving high gain.Therefore,a high gain DC/DC converter based on coupled inductor and voltage doubling unit is proposed.In this paper,the working principle and characteristics of the converter are analyzed in detail.Finally,the correctness of the theoretical analysis is verified by the simulation of the converter.
In the new energy grid-connected generation system,non-isolated high voltage gain DC/DC converters are needed.Traditional Boost converters require a high duty cycle when achieving high gain.Therefore,a high gain DC/DC converter based on coupled inductor and voltage doubling unit is proposed.In this paper,the working principle and characteristics of the converter are analyzed in detail.Finally,the correctness of the theoretical analysis is verified by the simulation of the converter.
引文
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[3]王挺,汤雨.基于开关电感的有源网络升压变换器的研究[J].电工技术学报,2014,29(12):73.
[4]Prudente M,Pfitscher L L,Emmendoerfer G,et al.Voltage Multiplier Cells Applied to Non-Isolated DC-DC Converters[J].IEEE Transactions on Power Electronics,2008,23(2):871-887.
[5]高伟,罗全明,张阳,等.一种零输入电流纹波高增益DC-DC变换器[J].电工技术学报,2018,33(2):284-292.
[6]胡雪峰,戴国瑞,龚春英,等.一种高增益低开关应力改进交错型Boost变换器[J].电工技术学报,2014,29(12):80-87.
[2]Li W,He X.Review of non-isolated high-step-up DC/DC converters in photovoltaic grid-connected applications[J].IEEE Trans.Ind.Electron.,vol.58,no.4,pp.1239-1250,Mar.2011.
[3]王挺,汤雨.基于开关电感的有源网络升压变换器的研究[J].电工技术学报,2014,29(12):73.
[4]Prudente M,Pfitscher L L,Emmendoerfer G,et al.Voltage Multiplier Cells Applied to Non-Isolated DC-DC Converters[J].IEEE Transactions on Power Electronics,2008,23(2):871-887.
[5]高伟,罗全明,张阳,等.一种零输入电流纹波高增益DC-DC变换器[J].电工技术学报,2018,33(2):284-292.
[6]胡雪峰,戴国瑞,龚春英,等.一种高增益低开关应力改进交错型Boost变换器[J].电工技术学报,2014,29(12):80-87.