Elitist Harris Hawks Optimized Voltage Stability Enhancement in Radial Distribution System

In this paper, a novel Elitist Harris Hawks Optimization (EHHO) algorithm is presented for multi-objective function by optimal location and size of the photovoltaic (PV) and distribution static compensators (DSTATCOM). The multi-objective function includes power loss reduction, voltage profile enhancement, and voltage stability improvement in Distributed Generation (DG). The proposed EHHO algorithm is used to calculate the size and search for the finest location of PV and DSTATCOM. The Newton-Raphson technique is applied to analyse the load flow. To demonstrate the performance of the proposed method, IEEE 30-bus Radial Distribution System (RDS) test system is used, and compared with the FLSA, IWHO, TLBO, and BONMIN algorithms under various loading conditions. According to simulation results, the proposed EHHO method is more effective at supporting power loss reduction, improves voltage profile and voltage stability, in distribution networks than other existing algorithms. The proposed EHHO method has a Voltage Stability Index value of 0.9879 p. u and a loss of power value of 39.2908 kW.