Impact of Grid Connection of Photovoltaic New Energy on Relay Protection
Some large-scale photovoltaic power stations are connected to the distribution network,leading to the gradual transformation of the original single end distribution network into a dual end or even multi end power supply network,which will cause certain changes in the power flow distribution in the distribution network.When a short circuit fault occurs,the misoperation and rejection of relay protection will occur,which will have a significant impact on the safe operation of the distribution network.To this end,the impact of photovoltaic new energy grid connection on relay protection was analyzed and studied,and effective measures were taken to improve the efficiency of photovoltaic power generation and ensure the quality of grid connection.
photovoltaic new energy grid connectiondistribution networkrelay protection
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