Dynamic Reactive Power Control Strategy of Generators Based on WAMS

摘要

To improve the problem of delayed voltage recovery after fault, a dynamic voltage/var sensitivity model based on integral mapping is set up and a generator excitation control strategy based on WAMS is presented in this paper. It provides voltage supporting after voltage drop through increasing the reactive power output by implementing excitation control to the generator units. According to this control strategy, the problem of delayed voltage recovery of Guangdong grid in 2014 ultimate operation mode is analyzed by using PSD-BPA, and simulation results show that the strategy is effective to shorten the voltage recovery time and improve the dynamic voltage stability of power system.