Analysis and Research on Output Characteristics of Regional Photovoltaic Power Generation

Abstract

In order to further analyze the consumption problem caused by regional photovoltaic power generation, the actual output data of typical photovoltaic power plants in Gansu province was used as an analysis sample to study the output characteristics of regional photovoltaic power generation. The output characteristics of a single photovoltaic power station was considered, and the seasonal and weather characteristics of photovoltaic daytime output was analyzed. Considering the cluster characteristics of photovoltaic power generation output, the volatility, correlation and simultaneity rate among different photovoltaic power plants were analyzed. The research results show that the overall photovoltaic output level in Gansu province is relatively high, but there are certain regional differences. Daily output is cyclical, while fluctuations are random. The output of regional photovoltaic power plants is correlated. Compared with the output of a single photovoltaic power station, the output of regional photovoltaic power plants has been reduced at the same time, and the impact on the grid when connected to the grid is reduced, which can improve the occurrence of “photovoltaic abandonment phenomenon”. The proposed quantitative analysis index for photovoltaic power generation output characteristics provides ideas and methods for regional photovoltaic power consumption analysis, and provides a reference for the formulation of photovoltaic power generation development plans.

Keywords

• photovoltaic power generation
• correlation
• output characteristic
• simultaneity rate
• distribution characteristic