Investigation of Nonlinear Dynamics in the Boost Converter: Effect of Capacitance Variations

The electronic domain is highly nonlinear, hence it is valuable to study the nonlinear effect particularly the chaos and bifurcation. The present paper deals with the simulative analysis of nonlinear dynamics in the boost converter with the help of bifurcation diagrams. In this brief communication, the current through inductor (IL) was considered as state variable and reference current (IREF) was considered as a controlled variable. The capacitor value was varied from 1μf to 50μf while the other parameter was kept unaltered. It was observed that, as the value of capacitor was increased, the corresponding period1 bifurcation, period2 bifurcations, and period3 bifurcations points were shifted in incremental order. It was also observed that period2 bifurcations, and period3 bifurcations points were vanished with an increasing capacitor value (C) and supply voltage (VIN).