Study on load shedding of active distribution network considering the failure of the cyber system

Aiming at the problem of line switch mal-operation in active distribution networks, a load shedding optimization model based on linear Distflow was proposed. First, the concept of line switch mal-operation was defined when the cyber system failed. Then, the switching state constraint was introduced, and the Distflow optimization model taking the minimum load shedding of the active distribution network as the objective function was established. Finally, the model was solved based on the idea of linear programming, the model feasibility is verified by the test system, and the influence of dispatch center control commands, switch malfunctions, and distributed generators on distribution network load shedding are discussed.