Abstract
This paper reports system dynamics and control of three-unequal area hybrid power system. The hybrid power system incorporates multi-source generating units. Inclusion of electric vehicles and system non-lineraities makes the power system more practical. A robust controller is desired for such a practical power system. To aid this, several controllers are examined and their response comparison leads to optimality of proportional integral double derivative (PIDD) controller. Different secondary controller gains are effectively optimized using magnetotactic bacteria optimization (MBO) technique. Moreover, fuzzy logic control (FLC) is developed for optimizing PIDD controller gains. The response comparison of Fuzzy-PIDD and MBO-PIDD controller infers that fuzzy logic control is as effective as any modern day optimization technique. Sensitivity inspection reflects the robustness of PIDD controller gains for variations in system parameters viz load perturbations and inertia constant (H) parameter.
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