Abstract
This study presents the employment of a novel hybrid Metaheuristics optimization technique to improve and stabilize voltage secondary layer of control being applied in Fractional-Order Fuzzy Proportional-Integral-Derivative controllers in the case of a faulted autonomous 3-phase AC Microgrid. For the frequency control part, a Proportional-Integral-Derivative controller is used. The autonomous Microgrid under study comprises multiple distributed generation units connected with impedance lines along with local loads. The Fractional-Order Fuzzy Proportional-Integral-Derivative controller is considered to have superior performance than conventional ones, despite the increase in the number of tunable parameters. Therefore, a hybrid Water Cycle and Moth-Flame optimization algorithm is considered to reach the optimum solution for the applied decentralized controllers. The performance of the controller is compared through varying optimization techniques and changing the controller type. Under the discussed control approach, the AC Islanded Microgrid operation steadiness is augmented.
Published Version
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