Simultaneous Reconfiguration, Optimal Allocation of D-STATCOM and Distributed Generation Units in Distribution Networks for Reducing Losses, Improving Reliability, Voltage Stability, and Operating Costs by Using a Combination of Horse Optimization and Genetic Algorithm

Reconfiguration along with the optimal allocation of DG resources and DSTATCOM units in power distribution networks is one of the effective tasks to improve power quality indicators in distribution networks, that as a non-linear combination scenario with high complexity, has been less discussed in research. This problem is a challenge with a discrete-continuous nature in the field of electrical power engineering, the solution of which requires powerful techniques in the field of optimization. To solve the proposed problem, a new hybrid algorithm named (GA-HOA) is introduced in this article. Fuzzy logic has also been used to find the most optimal solution among the obtained Pareto solutions. Considering a multi-purpose objective function including reducing losses, improving voltage stability, reliability, as well as operating costs, solving the proposed scenario along with four other scenarios using a new combined algorithm and a number of the proposed optimization algorithms has been evaluated on a distribution network with 70 buses. Also, different scenarios have been implemented on two distribution networks with 33 and 84 buses to reduce active power losses and compared with the outputs obtained from other methods in various articles. The obtained results show the success of the new hybrid algorithm in solving the proposed complex scenario along with providing a new topology for switches, locations, and optimal capacities for DG and DSTATCOM units with lower losses, more stable voltage, more reliability, and suitable operating cost. Also, the obtained results indicate the relative superiority of the proposed hybrid algorithm in finding the optimal solution and proper convergence time compared to other compared methods.