A New System Approximation Approach for Modelling of DC–DC Converter

In power electronic circuit design and analysis, Cuk converter has significant contribution. This convert is used to obtain variable DC voltage. The conventional modelling of Cuk converter provides complex linear model. Therefore, this study suggests a method for modelling of DC–DC Cuk converter via system approximation approach. Firstly, the high dimensional complex model of Cuk converter is discussed then its approximated transfer function model is achieved using a hybrid approach. In this approach, the combination of Routh approximation method and meta-heuristic search optimization is utilized for modelling of Cuk converter. The performance characteristics of proposed approximated model are compared with previously presented models.