Design and Application of a Medium/Low-Power Stand-alone/Grid-connected Dual-mode Inverter for Solar Photovoltaic System

摘要

The application of solar photovoltaic poer genernation usually has stand-alone and grid-connected modes, but most of the existing solar photovoltaic inverter has only a single function of off-grid or grid-connected, the suitability of system is relatively poor, difficult to meet the needs of the particular application. A medium and low-power stand-alone/grid-connected dual-mode inverter for solar photovoltaic system was designed, the composition, working principle and implementation of the inverter were introduced and developed. The designed inverter with a variety of functions, which can meet stand-alone or grid-connected and other solar photovoltaic applications, and can be used in different solar occasions.