Multi-scene technology applied in distribution network reliability assessment

For the reliability evaluation of distribution network with wind power, the current application of different simulation methods have a common contradiction between accuracy and computational time. In this paper, a method for the reliability evaluation of distribution network based on Wasserstein distance multi-scene is presented. First, optimal quintile and its probability of wind power scenes are determined by probability distribution of wind speed and wind turbine power curve. Second, the feeder partition algorithm is applied to calculate the reliability indices of distribution network under different scenes. Finally, the total probability formula is used to calculate the reliability indices of distribution network with wind power. A comparison with the results of Monte Carlo simulation method shows that the proposed method is simple and efficient, having high accuracy and suitable for evaluating reliability of distribution network that encompasses wind power.