Abstract: A computer method and system determine the reactive resources to be switched to keep voltage at key points in a power grid within their allowed high and low limits. The method periodically runs power flow for each of plural time intervals from a current time interval to a future time interval. Asynchronously and in concert with running the power flow, the method periodically formulates and solves a representative mixed integer linear programming (MILP) optimization problem for maintaining voltage within limits of interest, resulting in an optimal reactive resource switching solution. Based on the optimal reactive resource switching solution, the method provides at least one output toward switching in/out reactive resources of a subject power grid. The method and system achieve real-time, multi-interval optimal reactive power dispatching.

Abstract: A computer method and system determine the reactive resources to be switched to keep voltage at key points in a power grid within their allowed high and low limits. The method periodically runs power flow for each of plural time intervals from a current time interval to a future time interval. Asynchronously and in concert with running the power flow, the method periodically formulates and solves a representative mixed integer linear programming (MILP) optimization problem for maintaining voltage within limits of interest, resulting in an optimal reactive resource switching solution. Based on the optimal reactive resource switching solution, the method provides at least one output toward switching in/out reactive resources of a subject power grid. The method and system achieve real-time, multi-interval optimal reactive power dispatching.