Method for safe and economic dispatching of power distribution network considering multiple systems

The invention discloses a method for safe and economic dispatching of a power distribution network considering multiple systems. The method comprises the following steps: S1, establishing a park comprehensive energy system model; s2, establishing a scheduling model of the park comprehensive energy system by taking the minimum comprehensive cost as a target; s3, establishing an optimal scheduling model of the active power distribution network system; and S4, realizing coupling of the park comprehensive energy system and the active power distribution network system by using a target cascade method, and solving an optimal scheduling scheme. According to the method, the economical efficiency of the power distribution network is considered, the operation risk problem of the power distribution network is also considered, a weighted objective function is constructed, and the objective cascade method is combined with the harmony search algorithm for solving, so that the balance between the safety degree and the econo