Study on Reactive Power Compensation Based on the Grid Codes for Renewable Energy Connection to Transmission System

As interest in renewable energy grows due to the climate crisis, large-scale offshore wind farms are emerging as a key solution for achieving carbon neutrality. These farms can overcome the spatial and noise limitations of onshore wind; however, their intermittent nature and integration into high-voltage grids pose challenges to grid stability due to power output fluctuations. Therefore, an analysis is required for the grid connection of offshore wind farms. This paper examines reactive power compensation in accordance with the technical standards for the grid integration of offshore wind farms and calculates the required capacities for reactors and STATCOM based on the reactive power compensation strategy. Using PSS/E simulations, an offshore wind farm model was developed, and the necessary reactive power compensation was calculated.