Modal Analysis and Simulation of SSR for DFIG-Based Wind Farms

This paper analyses the subsynchronous resonance (SSR) phenomena in doubly-fed induction generator (DFIG)-based wind farms interconnected with series compensated Networks. The study system is derived from IEEE first benchmark model. Small-signal analysis is conducted on the basis of detailed mathematical model being set up. Time domain simulations are performed in DIgSILENT/Power Factory to confirm the small-signal analysis results that IGE instead of TI is the major reason for SSR in such systems.