Case Studies on Suppression of Multimodal Electromechanical Oscillations by STATCOMs Supplementary Controller

N.M.M. Razali, V.K. Ramachandaramurthy, and R.N. Mukerjee (Malaysia)

Keywords

Voltage source converter, FACTS, STATCOM, small signal stability, oscillation-damping

Abstract

STATCOM is primarily employed to manage reactive power at crucial locations in power system. Earlier studies have indicated the feasibility of equipping STATCOM with a supplementary controller to act as a damper for power swings. The paper outlines a STATCOM controller model and residue-based tuning method for its supplementary controller. The paper also demonstrates the performance of the developed model in suppressing observable and controllable modes of electromechanical oscillations in a 2-area power system.

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