Research on Emerging Decision-making of Static Voltage Stability Based on Severe Fault Set

An online calculation method for emerging decision-making of static voltage stability based on severe fault set is proposed, which is of great significance for ensuring the safe operation of the power grid. The method aims to select the reactive power control measure based on the voltage modal analysis result; when the reactive power control is insufficient, the active power control measure is added based on the active comprehensive sensitivity information; when the fault comprehensive control measure causes the normal operation mode When the bus voltage is upper limit, the reactive power distribution is re-adjusted by solving the reactive voltage comprehensive sensitivity. The application effect in Liaoning network has proved the practicality of assistant decision-making.