针对包含多种分布式电源的微网并网运行系统，应用可信性理论分析法，建立了 包含分布式电源的微网并网运行系统的动态有功优化模型，以微网运行的费用成本最小 化作为目标函数，求解后将其结果与采用场景法处理随机变量的优化方法所得结果进行 对比． 算例分析验证了所提模型的正确性，以及所述方法和求解算法对处理小规模分布式 电源接入微网有功优化问题的有效性和实用性．

Aiming at the microgrid parallel operation system containing various distributed generations,a credibility theoretical analysis is made to establish a dynamic active power optimization model.Then,by taking the minimum microgrid operation cost as the objective function,the model is solved and the results are compared with those ob- tained by the optimization via scenario analysis.Calculation example verifies the correctness of the proposed model,as well as the effectiveness and practicability of above-mentioned method in dealing with the active power optimiza- tion of microgrid containing various small-scale distributed generations.