Error-Minimization Oriented Approximation of Voltage-Multiplier Based DC-DC Level-Up Higher-Order Converter

In this proposed work, a fifth order single-input-single-output (SISO) high level DC-DC converter is approximated by utilizing time-moments (TMs) and Markov-parameters (MPs) of system and desired lower-order (LO) model with the help of Jaya algorithm. Firstly, the TMs and MPs are determined for HO system and desired LO model. These TMs and MPs are utilized to construct the objective function. In the objective function, the errors between TMs and MPs of the HO converter system and LO converter model are desired to be minimized. By minimizing the objective function, determination of unknown coefficients of desired LO converter model is accomplished. In this determination process, the minimization of steady state error is ensured by steady state matching. Then, ascertainment of stable LO converter model is fulfilled by exploiting Hurwitz stability criterion. To prove the applicability and efficacy of proposed methodology, responses, time-domain specifications and error-indices are presented.