Optimal Size & Allocation of Renewable DG in Distribution Systems for Sustainability, Loss Minimization & Vast Voltage Profile Using GA

Abstract

Real and reactive power losses occur in radial distribution systems, and voltage profiles are extremely low on buses furthest from slack buses, affecting all loads connected to that network. In this thesis, a strategy for reducing actual and reactive losses in an unstable lowervoltage distribution network is provided, based on DG installation, voltage stability, sustainability, and reliability analysis. Backward/forward analysis is used to determine real and reactive power loss, voltage profiles in each bus of the distribution system. The GA technique is used to determine the optimum size and allocation. Three distinct distribution bus systems have been chosen and justified to apply the abovesuggested approach by computing the bus system's line and load data set using heuristic analysis. The optimal solution using GA for determining the optimal production and placement of the DG unit is presented in this thesis. GA is coded in MATLAB Software to identify the best DG solution, and load and line data input for the IEEE-33/14/69 bus systems are provided. The simulation findings demonstrate that implementing an optimal DG size and allocation of IEEE-33/14/69 bus systems may result in significant power loss reduction and a high voltage profile. Optimum DG Capacity Implementation planning strategies have also been presented to lower the cost of the distribution system, enhance stability, and sustainability. To preserve sustainability, renewable energy (solar and wind) has been considered in DG, and the cost of renewable energy in DG has been studied using RETScreen Expert. The achievements of this methodology demonstrate a reduction in power loss, as well as sustainability and high voltage profile.