Comparative Efficacy of Optimization Techniques towards Multi-Objective Electric Power Quality Improvement

Abstract

Due to the rising demand for electricity, there is a requirement to enlarge and improve the power system in terms of stability and reliability. Moreover, it is necessary to sustain a high-quality power supply. Poorer power quality (PQ) leads to voltage swell, sag, harmonics and failure of equipment owing to huge voltage, current and imbalanced frequency. Hence, it is very essential to have more awareness of PQ. The prime challenges faced in the deregulated sectors are Available Transfer Capability (ATC), voltage stability, losses and congestion management. Therefore, this paper intends to consider these challenges as its parameter in the objective function and presents various optimization techniques viz., GWO, AKH and AWOA to find which listed parameter of PQ improvement is best optimized by which of the techniques used. Moreover, FACTS devices hold the most important role in improving PQ. Still, it necessitates optimal sizing and location to carry out the power quality improvement efficiently and, in a cost, effective way that can be portrayed by the introduced approaches.