A Joint Energy Storage Systems and Wind Farms Long-Term Planning Model Considering Voltage Stability

Abstract

The issues such as the price of oil and global warming are economic and environmental concerns that increase wind power penetration as a renewable energy source in today’s power systems worldwide. Unfortunately, variability and intermittency of wind energy could cause serious operational concerns, such as voltage stability problem. Therefore, it is important to minimize the negative aspects of wind power penetration on the voltage stability of power system. Consequently, the aim of this chapter is to provide a comprehensive long-term planning model for expansion of joint energy storage systems (ESSs) and large-scale wind farms (WFs) in order to increase wind power penetration and grid voltage stability. The proposed voltage stability constrained planning model comprises the following steps: (1) modeling of the impact of voltage stability constraints on the optimal capacity of WFs; (2) maximizing the profit obtained via wind energy procurement for WFs owners; (3) using ESS to facilitate long-term wind power integration and to alleviate the intermittency of WFs power generation; (4) investigation of the impact of ESS and WFs on the voltage stability. It is worth to note that ultimate goals are to increase the wind power penetration and to maintain a desired level of voltage stability. The results obtained from implementation of proposed method on the IEEE New England 39-bus standard test system demonstrate the effectiveness of the joint ESS and WFs planning model.