Patent ID: 11907865
Assignee: HITACHI ENERGY LTD
Field: Computer technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G

Claim 0:
1. A method of operating a power grid, the method comprising, by at least one processor executing at least one program element:
collecting input data, from a central and/or decentralized monitoring device, measuring device, or computer model, associated with a power grid scenario, the input data defining a security-constrained optimization problem (SC-OPF problem), wherein the power grid scenario comprises a power grid structure, a power demand and a generator capability and/or cost;
estimating, based on the obtained input data, power flows in branches of the power grid that are equal to or greater than limits for a contingency associated with the power grid scenario, the estimating performed by an artificial intelligence (AI) module;
reducing, by the AI module, the SC-OPF problem to a modified optimization problem, the modified optimization problem being smaller than the SC-OPF problem;
determining, based on the estimated power flows, a solution to the modified optimization problem by a solver module; and
operating the power grid based on the solution of the modified optimization problem.