The Influence of Photovoltaic Grid Connection on Power Quality of Power Grid and Control Technology Based on Big Data

With the rapid growth of social economy, the contradiction between energy demand and supply has become increasingly prominent. This paper takes photovoltaic grid connected inverter as the research object, through analyzing the current situation and future growth trend of solar power generation in China, combining relevant domestic and foreign literature, national policies and regulations and other factors to elaborate. According to the existing technical conditions and application environment, determine the feasibility scheme and measures based on GIS platform visualization, build a corresponding monitoring system against the background of big data(BD), use intelligent meter devices to achieve real-time monitoring of power quality, analyze the solar grid connected inverter as the research object, and conduct simulation verification by establishing appropriate mathematical models and calculation methods. The verification results show that, The impact of BD based photovoltaic grid connection on power quality of the grid and the control technology have excellent performance in controlling power stability and security.