Power distribution network single-contact multi-fault reliability evaluation method based on influence increment

The invention relates to a power distribution network single-contact multi-fault reliability evaluation method based on influence increment. The method comprises the following steps: S1, establishing an evaluation model; s2, dividing a feeder area according to the switch data information in the power distribution system line to obtain feeder division data information; s3, constructing a k-order fault set; s4, traversing the k-order fault set; s5, judging a current high-order fault type; s6, judging whether the k-order fault set is traversed or not; s7, judging whether the k order is an enumeration order upper limit or not, and if so, entering the next step; and S8, calculating the reliability index of the power distribution system. According to the method, the reliability evaluation efficiency of the power distribution network containing the distributed new energy power generation equipment can be effectively improved while the calculation precision is ensured. 本发明涉及一种基于影响增量的配电网单联络多重故障可靠性评估方法，包括如下步骤：S1、建立评估模型