Comparison Analysis of Virtual Inertia Control Methods for Smoothing Power Production of Grid Connected Wind Farm on a Power System

This paper presents a comparative analysis of the methods of a Virtual Inertia Control System (VICS) for smoothing power production of large-scale wind farms connected to a power system. Four commonly used VICS methods, synchronous generator model-based, swing equation-based, droop-based approach, and frequency-power response based, are compared in terms of effectiveness in smoothing wind farm power production and damping frequency fluctuation of the power system. The VICS is applied on the inverter-based STATCOM/BESS which is connected to the 9-Bus power system model. Simulation analyses have been performed by using PSCAD/EMTDC. The results show that the frequency-power response-based VICS is more effective for reducing wind farm power fluctuation.