Wind is becoming an increasingly significant source of energy in modern power generation. Amongst existing technologies, Variable Speed Wind Turbines (VSWT) equipped with Double Fed Induction Generators (DFIG) is widely deployed. Consequently, power systems are now experiencing newer power flow patterns and operating conditions. This paper investigates the impact of a DFIG based Wind Farm (WF) on the stability of electromechanical oscillations. This is achieved by performing modal analysis to evaluate the stability of a two-area power network when subjected to different wind penetration levels and different geographical installed locations. The approach via eigenvalues analysis involves the design of voltage and Supplementary Damping Controllers (SDCs) that contribute to network damping. The effect of Power System Stabilizer (PSS) is also examined for several network conditions. Simulations demonstrate a damping improvement up to 933% when the control systems are activated and the system operates with 25% wind integration.
Frequency stabilization of self-sustained oscillations in a sideband-driven electromechanical resonator
the Hong Kong University of Science and Technology（香港科技大学）；William Mong Institute of Nano Science and Technology, the Hong Kong University of Science and Technology（香港科技大学黄茂基纳米科学技术研究院）；Michigan State University（密歇根州立大学）
