含分布式电源和电动汽车的配电网可靠性评估

针对目前大规模分布式电源和电动汽车接入配电网后，给配电网可靠性带来一定影响的问题，提出了一种含有分布式电源和电动汽车的新型配电网的可靠性评估方法。首先，考虑到风光出力的不确定性和相关性，选择拟合性最优的Frank-Copula函数，建立了风光联合出力概率模型。其次，分析了电动汽车用户行为特征，提出了基于动态分时电价的电动汽车有序充放电控制策略。最后，基于改进IEEE-RBTS Bus6测试系统的主馈线F4，对系统的可靠性指标进行计算分析，结果表明所提的风光联合出力模型和有序充放电控制策略可以有效降低对配电网可靠性的影响。

Reliability evaluation of distribution network with distributed generation and electric vehicle

The integration of large-scale distributed generation and electric vehicles into the distribution network can have an impact on its reliability. To address this issue, a reliability evaluation method for a new distribution network containing distributed generation and electric vehicles was proposed. Firstly, with considering the uncertainty and correlation of wind and power output, the best fitting Frank-Copula function was selected and a joint probability model of wind and solar power was established. Secondly, the behavior characteristics of electric vehicle users were analyzed, and an orderly charge and discharge control strategy of electric vehicle was proposed based on dynamic time-of-use pricing. Finally, using the main feeder F4 of the improved IEEE-RBTS Bus6 test system, the reliability index of the system was calculated and analyzed. The results show that the proposed wind solar joint output model and orderly charge-discharge control strategy can effectively reduce the impact on the reliability of the distribution network.