Effective Wind farm iterative sizing method using voltage stability techniques

Current methods for determining wind farm maximum sizes which do not consider voltage stability margins (VSMs) may result in reducing the overall levels of wind penetration in a system. In this paper, new iterative method have been developed to increase wind penetration level by placing new wind generation at voltage stability strong wind injection buses. The new method provide a comprehensive methodology for the identification of system weaknesses for each wind penetration level. The new method incorporate modal analysis as well as traditional voltage stability methods (Q-V curves) in sizing and placing new wind farms. Applying this new method to the power system in western Kansas resulted in significant increase in wind penetration by Sizing up wind farms at locations with low contribution to voltage instability compared to locations with high contribution to voltage instability.