Comparative optimal siting and sizing D-STATCOM in radial distribution network

Consumer demand for electrical energy has increased significantly as a result of the fast expansion of population growth and industrialization processes. This has resulted in power quality issues, such as voltage collapse, generator failures, brownouts, and blackouts, as well as stability problems, excessive voltage, high losses in busses, and line overloading in the power distribution systems. According to studies, the main causes of voltage instability are reactive power imbalance and indiscriminate growth in non-linear loads. To deploy reactive power for compensating networks, a Distribution Static Compensator (D-STATCOM) was developed, suitably rated, and installed at the point of common coupling (PCC). The issue formulation took into account two indices (total power loss mitigation and voltage profile enhancement). The optimization problem is solved using the MATLAB-developed Particle Swarm Optimization (PSO) method and Backward–Forward Sweep (BFS) Power Flow Techniques. At ATC II, Jalingo feeder, the algorithm has been evaluated on an active 20-bus radial distribution networks (RDN) and IEEE 33-bus systems. Total voltage deviation and power loss data are used as performance measurements as they are compared to Particle Swarm Optimization Algorithm (PSOA) and Bat optimization algorithm (BOA) approaches. Using the PSOA methodology, the network total power loss was decreased from 221.6772 kW to 189.538 6 kW and 190.4572 with the BOA method. The corresponding percentages are 14.50% and 14.08%. Using the BOA and PSOA approaches at bus 2 and bus 10, the network voltage magnitudes also increased from 0.9941 p. u to 0.9973 p. u and 0.9993 p. u, respectively. The proposed work has significantly reduced power loss while also enhancing the bus voltage profile.