Optimized Dynamic Voltage Restorer (DVR) for Stabilizing Unbalanced Loads in Power System

Various approaches presented so far, to overcome load imbalances, mainly in two groups of traditional methods based on power demand information, and new methods based on power electronic devices, such as Static Synchronous Compensator (STATCOM) and, Dynamic Voltage Restorer (DVR). This paper optimizes DVR coefficients based on the Genetic Algorithm (GA) to improve DVR performance in stabilizing the unbalanced systems. After modeling the various unbalanced effects of the power system, in the real case study, DVR has been used to improve the load balance. Finally, by applying the genetic algorithm proposed in this paper, the performance of DVR in load balancing has been significantly improved. To verification of the accuracy of the GA method, the results of the obtained coefficients are compared with the Simulated Annealing algorithm (SA) and the experimental values.