Power Reaching Law-Double Integral Sliding Mode Controller Design to Mitigate SSR Problems in a DFIG-Based Wind Farm

A power reaching law-robust nonlinear double integral sliding mode controller is developed in this study to solve the sub-synchronous resonance (SSR) problem in DFIG-based wind farms. The suggested controller is designed using the rotor-side-converter (RSC) dynamic to improve SSR removal. The sliding mode approach is based on a rapid power reaching rule, which ensures that SSR difficulties are eliminated while transient stability performance is improved more quickly. The RSC dynamical model additionally handles external disturbances to illustrate the proposed controller's resiliency. The control law is then obtained using the suggested control technique, and the overall stability is validated using the Lyapunov theorem. A simulation study is performed to demonstrate its performance and compare it with an existing single integral SMC scheme.