Design of Double-Integral Sliding Mode Controllers to Mitigate SSR Problems in DFIG-Based Wind Farms Using Fast Power Reaching Laws

Abstract

A fast power reaching law-based double sliding mode controller (FPRL-DISMC) is proposed in this study to alleviate the sub-synchronous resonance (SSR) in a DFIG-based wind farm. The rotor side converter (RSC) has a larger influence on minimizing SSR effects than the grid-side converter (GSC), and the suggested controller is just for RSCs. Furthermore, because the suggested controller has a robustness property against external and parametric uncertainties, these uncertainties are taken into account when the controller is constructed using the RSC model. Following that, the proposed approach is used to generate the control law, and the overall stability of the RSC dynamic is ensured using the well-known Lyapunov theory. Finally, a simulation study is undertaken under various compensation levels to validate the utility of the suggested. The suggested controller's performance is compared to that of the existing controller to demonstrate its superiority.