Combined with the characteristics of distribution network, this paper introduces the life cycle cost theory, from three aspects of economic benefits, social benefits and environmental benefits to construct the evaluation system of comprehensive benefits of distribution network planning. In view of the benefit evaluation of distribution network in the presence of uncertainty, it establishes a comprehensive benefit evaluation model of distribution network planning based on the cloud matter-element theory, which combines with advantages of cloud model reasoning under uncertainty and qualitative and quantitative analysis of matter element theory, and takes full account of the fuzziness and randomness of distribution network benefit level boundary information. Finally, a numerical example is analyzed to verify the scientificity and validity of the model.%结合配电网自身的特点,引入全寿命周期理论,从经济效益、社会效益和环境效益等三个方面构建了配电网规划综合效益评估体系.针对配电网效益评估过程中存在的不确定性,建立了基于云物元理论的配电网规划综合效益评估模型,结合云模型的不确定性推理和物元理论定性、定量分析的优点,充分考虑了配电网效益等级边界信息的模糊性和随机性.最后通过算例分析验证该效益评估模型的科学性和有效性.
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