Optimization of grounding conductor in WPP

Nowadays the wind energy becomes more used in power systems. This requires an effective protection for Wind Power Plant (WPP). The present paper study wind turbine grounding system. The impact of the wind turbine foundation metals on grounding system parameters is evaluated. For WPP of 6 wind turbines, the impact of grounding interconnection configuration is studied. The interconnection reduces 80 % of the resistance compared to the one obtained with simple wind turbine grounding system. Lastly, a proposed global grounding system for the WPP is studied to economize 45,45 % of copper quantity used in grounding conductor, and this without perturbs WPP protection.