Fast Generation of Power System Operation Modes Based on Optimal Power Flow

Power system operation mode (including power flow, unit generation, and load demand) is a snapshot of the power grid status and acts as the basis for the power-system-related analysis. Under the massive integration of variable renewable generation, fast generation of power system operation mode to describe the different status of a power grid is an essence for power system analysis. In this paper, we propose a framework for the fast generation of power system operation modes based on optimal power flow. Specifically, the framework includes these steps: randomly changing the current operation mode; establishing an optimal power flow model targeted for the smallest generator output change; adjusting the operation mode with non-convergence power flow into the feasible region. With the help of parallel computation, repeating the above steps to obtain a new operation mode will reduce the calculation time. A case study on the IEEE 14-bus system validates the effectiveness of the proposed method.