Simultaneous allocation of multi-DG with capacitor banks in distribution system using IGWO

Integration of Renewable based distributed generations (DGs) along with capacitor banks (CBs) aim to improve the performance of the distribution system (DS). This paper presents an Improved grey wolf optimizer (IGWO) for simultaneous allocation of multi-DG with CBs in DS. The proposed technique aims to enhance technical, environmental, and economical benefits. The multi-objective examined in this paper are reduction of power losses, voltage profile improvement, cost minimization, and control of harmful environmental gases. Widely used and most common renewable energy resources (RERs) are considered for integration in DS. Solar Photovoltaic (PV) and wind-based DGs are integrated into DS with probabilistic generation to fulfill load demand in order to minimize multi-objective function (MOF). The IGWO algorithm is implemented on radial DS namely IEEE 33-bus and 69-bus system. The proposed IGWO provides better results as compared to optimization techniques available in the literature.