Research on Technical Standards for Grid-Connection Frequency Support of Photovoltaic Power Generation

With the explosive growth of installed capacity of photovoltaic power generation and the increasing proportion of grid access, the continuous updating and iteration of PV gridconnected technical standards is particularly important. This paper summarizes the frequency support related content of various regions/institutions of PV grid-connected system standards, analyzes the differences in the technical requirements of each standard in terms of frequency support response through the comparison of the latest revised standards, mainly includes the differentiated requirements of activefrequency control, frequency adaptability, and other technical indexes, analyzes the reasons behind these differences, and discusses the key role of the frequency support performance of the PV grid-connected system to ensure the stable operation of the power grid and the development trend.