文档介绍：: .
电源学报
摘要：光伏发电为代表的新能源发电已经成为了实现“碳中和”这一目标的重要手段。光伏发电系统通常需要多个光伏组件串联从而
获得高电压输出，而在串联光伏组件中由于局部阴影或组件不同程度老化等因素造成的组件特性不匹配会导致系统发电量的严重损失。因
此，学者提出了很多技术方案尝试来解决这一问题。其中，光伏均衡器成为了一种很有前景的解决方案，其采用电力电子变换器将不匹配
功率进行转移从而改变组件工作点获得最大功率输出。首先介绍了光伏均衡器的基本概念及工作原理。然后详细介绍了组件-母线结构、组
件-组件结构及其他类型结构的光伏均衡器拓扑，并对现有的光伏均衡器拓扑电路进行了细致的参数及性能对比分析。最后，对不同类型的
光伏均衡器拓扑结构进行了总结与评价，为该方向的研究人员提供参考。
关键词：光伏发电；不匹配；均衡器；差分功率处理
A Review of Photovoltaic Power Equalizer Topologies
ZHAO Ben1, CUI Haoran1, HUANGFU Yigeng1, YANG Yongheng2
(1. School of Automation, Northwestern Polytechnical University, Xi’an 710072, China;
2. School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)
Abstract: Towards carbon neutrality, renewable energy power generation represented by photovoltaic（PV） power generation has become an important
means to achieve this target. PV power generation systems usually require multiple PV modules to be connected in series to obtain a high output volt-
age. However, in series PV modules, the mismatch of component characteristics due to partial shading or different degrees of aging of the components
will cause serious loss of power generation. Accordingly, many attempts have been made to solve this problem and the PV equalizer has become a
promising solution. It uses a power electronic converter to transfer the mismatched power to change the operating point of the component to obtain the
maximum output power. This paper first introduces the basic concepts and principles of PV equalizers, and then details PV-bus, PV-PV and other types
收稿日期：2022-01-03；录用日期：2022-05-05