Power Generation Technology ›› 2022, Vol. 43 ›› Issue (3): 413-420.DOI: 10.12096/j.2096-4528.pgt.21060

• Intelligent Energy • Previous Articles     Next Articles

Analysis and Research on Output Characteristics of Regional Photovoltaic Power Generation

Qingquan LÜ1, Zhenzhen ZHANG1, Yanhong MA2, Jianmei ZHANG1, Pengfei GAO1, Tingting JIANG3, Honglu ZHU3   

  1. 1.Electric Power Research Institute, State Grid Gansu Electric Power Company, Lanzhou 730070, Gansu Province, China
    2.State Grid Gansu Electric Power Company, Lanzhou 730000, Gansu Province, China
    3.New Energy School, North China Electric Power University, Changping District, Beijing 102206, China
  • Received:2021-11-19 Published:2022-06-30 Online:2022-07-06
  • Supported by:
    National Natural Science Foundation of China(U1765104);Science and Technology Project of State Grid Corporation of China(SGGSKY00WYJS2000127)

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.

Key words: photovoltaic power generation, correlation, output characteristic, simultaneity rate, distribution characteristic

CLC Number: