Trans-provincial power transaction plan scheduling optimization method and device based on redundancy security constraint identification

The invention relates to the technical field of power dispatching, and discloses a trans-provincial power transaction plan dispatching optimization method and device based on redundancy security constraint identification. According to the method, boundary conditions of a regional power grid scheduling plan are obtained, non-redundant security constraints are screened out from all security constraints of a regional power grid scheduling problem, a transaction plan feasible region model is constructed, the transaction plan feasible region model is solved by using a vertex search method, and a limit value of a transaction plan component is obtained. And taking the result as a transaction plan component transmission power constraint limit value, and optimizing the regional power grid transaction plan scheduling according to the transaction plan component transmission power constraint limit value. According to the method, the accuracy of the transaction plan component transmission power limit value can be improved