中文摘要：

光伏逆变器是独立光伏发电系统的主体,其性能直接决定了整个系统能否长期、可靠、高效运行,因此成为各国学者的研究热点。主要从提高可靠性、简化拓扑以及优化控制策略等方面对独立光伏逆变器的研究现状和成果进行回顾。可为研究人员确定独立光伏逆变器的具体研究方向提供一定参考。

英文摘要：

Photovoltaic （PV） inverter is the main part of stand-alone PV generation system, and its performance directly determine the reliability, efficiency and lifetime of the whole system. Therefore, it becomes hotspot which scholars research on. From the aspects of improving reliability, simplifying topology and optimizing control strategy, the difficulties in the research area of stand-alone PV inverters were introduced, and the progresses were reviewed. It provides a guideline for researchers to select possible research orientation in future.