在含有分布式电源的配电系统发生故障时，可将配电系统划分成若干微电网孤岛运行，制定合理有效的孤岛划分方案十分必要。该文基于约束满足问题模型生成值域单元集，不同变量值域单元集形成邻接矩阵，根据邻接矩阵元素值筛选孤岛划分可行方案，采用熵权法从可靠性、经济性、环保性3方面对孤岛划分可行方案进行综合评价，依据理想点偏离度最小原则优选孤岛划分方案。最后，通过简化系统进行算例分析，验证了本文方法的可行性与有效性。%Distribution network could be divided into several micro grids in an island operation state when it fails with DG,thus formulating a reasonable and effective island partitioning solution is necessary. In this paper,a unit set is formed to meet the constraint based on the constraint satisfaction problem(CSP). By using the set of values of different variables to form adjacency matrix,and screening the feasible solution of island partitioning according to the value of the elements in the adjacency matrix,the feasible solution is evaluated comprehensively from three aspects of reliabili⁃ty,economical efficiency and environmental protection based on entropy weight. The optimal solution of island partition⁃ing is selected according to the principle of minimal ideal point deviation. In the end,the feasibility and validity of the proposed method are verified by analyzing an example of a simplified system.
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