适用于可再生能源系统的新型高升压DC/DC变换器  

Novel High Voltage Boost DC/DC Converter for Renewable Energy System

作　　者：李蕊 程诗尧 罗义钊 刘永强 柳玉銮 LI Rui;CHENG Shiyao;LUO Yizhao;LIU Yongqiang;LIU Yuluan(State Grid Beijing Electric Power Research Institute,Beijing 100075,China;Fujian Netpower Technology Development Co.,Ltd.,Fuzhou Fujian 350003,China)

机构地区：[1]国网北京市电力公司电力科学研究院,北京100075 [2]福建网能科技开发有限责任公司,福建福州350003

出　　处：《电子器件》2022年第5期1174-1181,共8页Chinese Journal of Electron Devices

摘　　要：提出了一种二次型高升压耦合电感DC/DC变换器。该结构采用一个耦合电感和两个同时工作的功率开关,在电路中实现了极高的电压转换比;通过对由耦合电感漏感产生的电路进行准谐振操作,降低了开关损耗。通过考虑高增益转换比和元件上的低电压应力,变换器的磁损耗和半导体损耗显著降低。详细分析了变换器的工作原理和稳态特性,最后,通过一台200 W、20 V/200 V的实验样机,验证了理论分析的正确性。A coupled inductor quadratic high boost DC/DC converter is proposed, achieving a very high voltage conversion ratio in the circuit through a coupled inductor and two power switches working at the same time. Through the quasi resonant operation of the circuit generated by the leakage inductance of the coupled inductor, the switching loss is reduced. By considering the high gain conversion ratio and low voltage stress, the magnetic loss and semiconductor loss of the converter are reduced significantly. Finally, a 200 W,20 V/200 V prototype is used to verify the correctness of the theoretical analysis.

关 键 词：可再生能源 BOOST变换器 耦合电感 高升压增益 

分 类 号：TM46[电气工程—电器]