Contents I. Introduction
In recent years, with the rapid development of new energy generation such as photovoltaic and wind power, the proportion of new energy in the power grid has gradually increased. New energy units, represented by wind power and photovoltaic, are mostly connected to the grid through converters[1], which have problems such as high power fluctuations, high reactive power compensation, and instability when connected to weak power grid. This has led to a continuous decline in power grid strength, posing a huge challenge to the stable operation of traditional grid following converters.
