This paper discusses the real time digital simulation of a Static VAr Compensator (SVC) with fuzzy logic based supervisory control to damp the oscillations seen in the voltage after disturbances. The main controller is a traditional PI-controller and the auxiliary control path is made using fuzzy logic controller to provide the damping action. Therefore, the resultant is a non-linear controller, which performs better than the linear PI-controller. The controller performance is tested by connecting the SVC to a multi-machine power system, which is modeled in RSCAD software. The Real Time Digital Simulator (RTDS) is used to simulate the test system and the results are presented to show the improved performance of the proposed non-linear controller.
S. Arunprasanth, U. D. Annakkage and R. Kuffel, "Real time digital simulation of a static var compensator with fuzzy supervisory control," 2013 IEEE 8th International Conference on Industrial and Information Systems, Peradeniya, 2013, pp. 654-659.
KEYWORDS: Fuzzy logic, SVC, damping, power system, static VAr compensators, voltage control, load modeling, power system stability, RSCAD