Research on Harmonic Problem of Micro-grid with Distributed Grid Connected Inverter

摘要

With the grid connected inverter is widely used in the new energy power generation, which is represented by wind energy and photovoltaic power generation, the resonance problem caused by the grid connected inverter becomes more and more a threat to the safe and stable operation of power system. This paper firstly introduces the basic structure of the new energy grid connected system, which is represented by wind power and photovoltaic system. Secondly, the harmonic resonance of the new energy grid connected system is analyzed. Finally, this paper introduces the optimization operation control process of the multi-function grid connected inverter, and proposes a power quality and reliability management strategy based on summarizing the advantages and disadvantages of various methods.