Analysis of the Impact of the Photovoltaic Generation on Distributed Networks Considering the Fluctuation of Its Output

Abstract

Due to the shortage of traditional fossil resources, the renewable distributed generation like photovoltaic (PV) generation grows fast. Considering this situation, analyzing impact brought by PV generation is of great significance. This paper analyzes multiple indicators of the distributed power system state considering the fluctuation of the PV generation's output. The mechanism of the multiple impact of PV generation on fundamental voltage and harmonic distortion is analyzed first. Then the power system state analyzing structure considering the fluctuation of output of PV generation is proposed. At last the analyzing process is conducted on the revised IEEE 33 bus system in different scenarios. Statistical feature of the fundamental and harmonic state in one day is obtained to reflect the influence brought by PV generation.