Optimal Coordinated Voltage Control in Distribution Networks in presence of Solar and Wind Power Plants Considering Uncertainties

Abstract: In the last decade, the amount of distributed generation connected to the distribution network is increasing. The presence of distributed generation resources in distribution systems has a great influence on its behavior and it is necessary to consider the impact of these resources on the distribution network design. In this study, Optimal Coordinated Voltage Control (OCVC) using wind and solar power plants considering uncertainty of generators for solving multi-objective optimization problem, with the aim of minimizing voltage error in pilot bus, reactive power variations and voltage error in generators is presented. Optimal Coordinate Voltage Control uses Pareto optimization to find the optimal voltage. This method is performed using a combination of wind and solar power plants on the IEEE 13-bus and 34-bus test networks and the uncertainty of solar and wind power plants is also modeled by the Monte Carlo method. The obtained results show the effectiveness of proposed method in controlling voltage and reducing losses.