Reliability evaluation of distribution network containing virtual energy storage system
To solve the problem that future widespread power outages cause the loss of power in important places and a significant decline in residents'living standards in local areas of our country,the article proposes an aggregation model of electric vehicle virtual energy storage applied to distribution networks,and establishes the relevant models of electric vehicle virtual energy storage in virtual energy storage system based on it,and proposes a distribution network reliability evaluation method containing electric vehicle virtual energy storage.Firstly,an aggregation model of electric vehicle virtual energy storage is proposed to ensure that no power is lost in islands and important loads in the distribution network.Secondly,the relevant models of electric vehicle virtual energy storage based on the aggregation model of electric vehicle virtual energy storage are investigated.Finally,a distribution network reliability evaluation method containing electric vehicle virtual energy storage is proposed based on the traditional distribution network reliability evaluation.The improved IEEE-RBTS Bus6 is adopted as an example for the analysis,and the simulation results demonstrate the validity of the model established and the fact that containing a virtual energy storage system can significantly improve the reliability of the distribution network.
distribution network failurereliabilityvirtual energy storage systemelectric vehicle virtual energy storagedis-tributed generation