Frequency Control Through Voltage Regulation of Power System Using SVC Devices

This paper focuses on voltage-based frequency control by means of Static Var Compensators (SVCs). An additional frequency control loop based on a droop and a PI control is integrated to the voltage control of the SVC to exploit primary frequency control. To illustrate the performance of the combined voltage-frequency controller the WSCC 9-bus and a detailed all-island dynamic model of the Irish system is utilized. The latter shows that frequency-voltage control through shunt FACTS devices can be effective in real-world applications.