Approximation of Interval Modelled Higher Order Boost Converter Utilizing Modified Routh-Padé Technique

In this research proposal, order reduction of interval modelled higher order (HO) boost converter is presented by exploiting modified Routh approximation and Padé approximation. The fifth order boost converter is modelled with the help of state space averaging technique. The interval modelling of HO fixed coefficient system is done by incorporating the
$\pm 5\%$
variations in system parameters due to uncertainty. The approximation of HO boost interval system is done by utilizing modified Routh approximation for unknown denominator coefficients and Padé approximation for unknown numerator coefficients. The responses and tabular comparison are also provided in support of proposed methodology.