一种三电平高增益DC-DC变换器
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摘要
针对光伏发电系统中单光电池板输出电压低而并网输入电压高的问题,提出了一种三电平高增益DC-DC变换器。该变换器具备输入、输出高电压增益,开关管电压应力低以及电路拓扑和控制策略简单等优点。因此,分析所提变换器的工作原理,阐述其工作性能,并论证了其可行性。
Aiming at the problem that the output voltage of a single photovoltaic panel in a photovoltaic power generation system is low and the grid-connected input voltage is high,a three-level high-gain DC-DC converter applied to a photovoltaic power generation system has been proposed. The converter has the advantages of high input-output voltage gain ratio,low voltage stress of the semiconductor devices,simple circuit topology and control strategy. The working principle of the converter is analyzed,the performance of the converter is expounded,and the feasibility of the converter is demonstrated.
Aiming at the problem that the output voltage of a single photovoltaic panel in a photovoltaic power generation system is low and the grid-connected input voltage is high,a three-level high-gain DC-DC converter applied to a photovoltaic power generation system has been proposed. The converter has the advantages of high input-output voltage gain ratio,low voltage stress of the semiconductor devices,simple circuit topology and control strategy. The working principle of the converter is analyzed,the performance of the converter is expounded,and the feasibility of the converter is demonstrated.
引文
[1]罗继东.光伏发电建模及控制策略优化的研究[D].武汉:华中农业大学,2018.
[2]邾玢鑫,宋坤,曾庆典,等.基于无源缓冲电路的零电压关断非隔离型高增益DC-DC变换器[J].电工技术学报,2018,33(15):3617-3626.
[3]雷浩东,郝瑞祥,游小杰,等.基于开关电容的软开关高电压增益DC-DC变换器[J].电工技术学报,2018,33(12):2821-2830.
[4]熊泽成,尹强,任晓丹,等.高增益隔离DC/DC变换器的研究[J].电气传动,2017,47(12):39-43.
[5]马圣全,潘庭龙.基于开关电容的三端口DC-DC变换器[J].电源学报,2015,13(1):48-55.
[6]陈章勇,许建平,吴建雪,等.耦合电感零输入纹波高增益非隔离DC-DC变换器[J].中国电机工程学报,2014,34(33):5836-5845.
[2]邾玢鑫,宋坤,曾庆典,等.基于无源缓冲电路的零电压关断非隔离型高增益DC-DC变换器[J].电工技术学报,2018,33(15):3617-3626.
[3]雷浩东,郝瑞祥,游小杰,等.基于开关电容的软开关高电压增益DC-DC变换器[J].电工技术学报,2018,33(12):2821-2830.
[4]熊泽成,尹强,任晓丹,等.高增益隔离DC/DC变换器的研究[J].电气传动,2017,47(12):39-43.
[5]马圣全,潘庭龙.基于开关电容的三端口DC-DC变换器[J].电源学报,2015,13(1):48-55.
[6]陈章勇,许建平,吴建雪,等.耦合电感零输入纹波高增益非隔离DC-DC变换器[J].中国电机工程学报,2014,34(33):5836-5845.