基于耦合电感与倍压电容的高增益Boost变换器
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High Gain Boost Converter Based on Coupled Inductor and Voltage Doubled Capacitor
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    摘要:

    针对目前新能源发电系统中的DC/DC升压变换器,普遍存在着输出电压低、开关管峰值电压大等缺点,提出了一种基于耦合电感与倍压电容高增益Boost变换器;该变换器引入耦合电感以及两个倍压电容提高了电压增益;所提结构有效吸收漏感能量,降低开关管电压应力和变换器的损耗,抑制开关管电压尖峰,实现开关管的零电流开通,并且利用耦合电感副边绕组漏感的能量解决了输出二极管的反向恢复问题;利用Matlab对所提变换器进行仿真实验,对变换器进行稳态分析,并得出变换器在不同输出功率下的效率。

    Abstract:

    In view of the disadvantages of DC/DC boost converter in new energy generation system,such as low output voltage and large peak voltage of switch tube,a boost converter based on coupling inductor and voltage multiplier capacitor is proposed.The coupling inductor and two voltage doubling capacitors are introduced into the converter to improve the voltage gain,reduce the voltage stress of the switch tube and the loss of the converter,suppress the voltage spike of the switch tube,realize the zero current turnon of the switch tube,and solve the reverse recovery problem of the output diode by the leakage inductance of the secondary winding of the coupling inductor.Matlab is used to simulate the proposed converter,analyze the steady state of the converter,and get the efficiency of the converter under different output power.

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戴云飞, 祝龙记.基于耦合电感与倍压电容的高增益Boost变换器[J].重庆工商大学学报(自然科学版),2021,38(2):75-81
DAI Yun-fei, ZHU Long-ji. High Gain Boost Converter Based on Coupled Inductor and Voltage Doubled Capacitor[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2021,38(2):75-81

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  • 在线发布日期: 2021-04-07
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