Study on Air-source Heat Pump Heating System Based on Photovoltaic Generation Complementary with Grid

Abstract

Air-source heat pump heating system based on photovoltaic generation complementary with grid is proposed in this paper. When solar radiation is sufficient, the photovoltaic array provides power to the load. Otherwise, grid smoothly switches into the system to replace the photovoltaic array. The scheme of the system for a heating room is put forward, and the actual system is set up. Comparing with traditional heating method, operation efficiency of the system is improved significantly. Experiment results show that when photovoltaic generation replaces the grid, the distortion rate of load’s current is small, and the system run smoothly.