ABSTRACT
This chapter addresses the problem of model order reduction and controller synthesis of an automatic voltage regulator (AVR). The order reduction is performed using a mixed method. The denominator polynomial is determined by the stability equation method (SEM), while the numerator polynomial is found through a grey wolf optimizer (GWO). The model is subsequently designed using approximate model matching (AMM) applying the GWO technique. The effectiveness of our method is tested with seven recent metaheuristic algorithms frequently cited in the literature. The proposed technique surpasses these standard algorithms in terms of parameters in both time and frequency domains and several performance measures commonly used in systems theory.
