Design of Power Switching and Distribution Circuits for Solar Power Generation

摘要

With the development of clean energy,switching and distribution issues in a photovoltaic system are getting much attention in recent years.This paper designs a DC to AC inverter and power switching and distribution system between a solar power system and the municipal system by using the Darlington amplifier structure with the photosensitive resistor and accompanying relays,and details the system circuits.The proposed system can achieve a stable output of 110 V AC,as well as self-generating driving voltage and switching between the municipal electrical system and the solar power system.The mathematic analysis and actually test results demonstrate that the proposed method is an easy,inexpensive,and low cost way to build a solar power switching and distribution system.