Voltage Control Strategy Considering Dynamic Reactive Reserve Margin Under Predictive Fault

With the development of AC/DC hybrid power grids and a high proportion of new energy sources, grid operation risks have increased. The voltage and reactive constraints in traditional automatic voltage control systems are generally given offline, which may not be able to meet the requirements of security and stable operation of the actual voltage of the power grid. This paper proposes a voltage control strategy that considers dynamic reactive reserve margin under the predictive fault. Tap the reactive power control characteristics of different reactive power sources, based on the secondary voltage control model, taking dynamic reactive power reserve as constraints. Improve dynamic reactive power reserve margin, and the grid voltage safety and anti-interference ability.