Subsynchronous resonance (SSR) can bring significant negative effects on the grid system like stability, security, and even generator\nshaft damage. This work presents a new method of using a doubly-fed induction machine (DFIM) based system of variable speed\npumped storage plant (VSPS) to mitigate SSR in the power system with high penetration of wind generation. The mitigation is\nreached based on the principle of balanced shaft mechanical input power and electromagnetic power. The fundamental concepts\nand phenomena of SSR with wind farm are discussed in brief in this work. For the sake of analysis and verification of performance\nof the proposed system, the network model including wind farm, VSPS, HVDC, and synchronous machine is built based on Ningxia\ngrid for the SSR study using PSCAD platform. The result shows that VSPS brings significant effect to dampen the SSR in the power\nsystem with high penetration of wind generation.
Loading....