Wide area oscillation damping control with DFIG based wind turbines using WAMS

Abstract

The increased penetration of renewable energy sources affected the transient stability and grid resiliency. Recently several studies are reported to improve the system stability with Doubly Fed Induction Generator (DFIG) based Wind Energy Conversion System (WECS). Due to the remote location of DFIG, the local signals measured may not content the complete oscillation information of the system. This paper describes an optimization enabled Wide Area Damping Control (WADC) of DFIG to mitigate both local and inter area oscillations. The Wide Area Measurement Systems (WAMS) which includes PMUs and synchrophasors are used for centralized controller for damping inter area and local oscillatory modes. The proposed damping controller parameters are optimized along with the local Power System Stabilizer (PSS) settings for maximizing the impact on system modal damping. The proposed algorithm is verified with transient simulation in PSCAD/EMTDC for the most severe three phase solid ground fault.