适用于光储充直流微网的绿色高效电力变换器  

Power Converter with Green Converting and High Efficiency for PV-storage-charging DC Micro Grid

作　　者：邓凯 赵伟 罗敏 付青 赖日培 孟金岭 DENG Kai;ZHAO Wei;LUO Min;FU Qing;LAI Ripei;MENG Jinling(Electric Power Research Institute of Guangdong Power Grid,Guangzhou 510080,Guangdong,China;Green Converting and Intelligent Control Engineering Technology Research Center of Guangdong,Guangzhou 510006,Guangdong,China)

机构地区：[1]广东电网有限责任公司电力科学研究院,广东广州510080 [2]广东省绿色电力变换及智能控制工程技术研究中心,广东广州510006

出　　处：《电气传动》2020年第9期42-46,71,共6页Electric Drive

基　　金：广东电网有限责任公司科技项目(GDKJXM20162421)。

摘　　要：新能源和电动汽车的发展促进了直流微电网的高速发展,绿色高效是直流微电网电力变换器的重点研究内容。利用电容变换器体积小、质量轻、噪声低等一系列特点,提出一种适应于新能源微电网的绿色高效电力变换器,将光伏发电能量高品质、高效率输送给直流母线,该变换器具有PWM电压调节能力,而且通过软开关技术实现开关管的零电压开通并使用小电感代替二极管完成续流,提高了变换器的效率和功率密度。理论分析和实验表明,该变换器具有良好的品质和很高的工作效率。The rapid development of DC micro grid is promoted by the boom of new energy and electric vehicles recently.Green converting and high efficiency are the key research contents of DC microgrid power converter.A green and efficient power converter adapted to the new energy micro grid was proposed by using a series of features of small volume,light quality and low noise.The high quality and high efficiency of photovoltaic power generation were transported to the DC bus.The converter had PWM voltage regulation ability,and the zero voltage on of the switch tube was realized by the soft switching technology and the diode was replaced by the small inductance so as to improve the efficiency and the power density of the converter.Theoretical analysis and experimental results show that the converter has good quality and high efficiency.

关 键 词：直流微电网 绿色高效 电力变换器 软开关 

分 类 号：TM28[一般工业技术—材料科学与工程]