Advanced Coordination of VIC, LFC, and AVR for Stability Enhancement on Renewable Rich Power System

This paper proposes an advanced coordination of virtual inertia control (VIC), load frequency control (LFC), and automatic voltage regulator (AVR) to overcome the problem caused by high wind power plant plant integration. In this study, an energy storage system (ESS) is utilized as VIC. In this paper single machine infinite bus with AVR and LFC is used as the test system. To achieve the best performance of control scheme for frequency oscillation damping, the parameters of VIC, LFC, and AVR are optimized by sine cosine algorithm (SCA). Three load demand scenarios as of 100 MW, 200MW, and 150 MW are applied to the power system model with 1000 MVA of electric generator rating value. Moreover, wind power plant plant capacity is 40% of electric load peak that is allowed in injecting its power to the power system grid. Simulation results showed that the proposed method could decrease the overshoot and compress the settling time better than other control schemes utilized in this paper.