Overview of Single-phase Grid-connected Photovoltaic Systems

摘要

A still booming installation of solar photovoltaic systems has been witnessed worldwide. It is mainly driven by the demand of "clean" power generation. Grid-connected photovoltaic systems will become an even more active player in future mixed power systems, which are linked by a vast of power electronics converters. To achieve reliable and efficient power generation from photovoltaic systems, stringent demands have been imposed on the entire photovoltaic system. In return, it advances the development of power converter technology in photovoltaic systems. This article thus takes an overview of the advancement of power electronics converters in single-phase photovoltaic systems, being commonly used in residential applications. Demands to single-phase grid-connected photovoltaic systems as well as the general system control strategies are also addressed in this article.