考虑随机性分布式电源的配电系统潮流计算

摘要

The growing capacities of wind power and solar energy make the power flow of distribution systems become more stochastic. According to the law of the wind power and the solar power. this paper builds the probability model of wind power and solar power and uses the point estimate method to solve the sto-chastic load power. The probability distributions of node voltages are calculated by the approximate method on Gram-Charlier pro-gression. IEEE 33 bus system is used as an example. The results show that the models and algorithms proposed in this paper is effi-cient.%配电系统中风力发电以及光伏发电等具有随机性的分布式电源容量的不断增加，使配电系统潮流变化具有一定的随机性。根据风电系统以及光伏系统的变化规律建立了风电以及光伏的随机等效模型，利用三点估计法进行了含随机分布式电源的概率潮流计算，并利用Gram Charlier级数得到相关变量的概率密度分布函数，通过对IEEE33节点进行仿真说明了方法的可行性。