Chaos: A Nonlinear Phenomenon in AC-DC Power-Factor-Corrected Boost Convertor

Abstract

Nonlinear Dynamics is a very popular topic for researchers. The prior researchers already studied the nonlinear dynamics of current controlled DC-DC boost converter. The power factor corrected boost regulator is a circuit which is designed especially as input power factor can maintain unity. Firstly, we derive the state equations of this switching circuit. The circuit is numerically simulated by MATLAB Simulink module. Here load resistance is taken the major parameter for observing the system dynamics. The fundamental, subharmonic, and chaotic orbits are reported after getting simulation results. The paper also proposes a control system that automatically stabilizes one-dimensional time-delayed chaotic system. The delayed-feedback control (DFC) is proposed to stabilize the unstable periodic orbit (UPO) as it is not accepted for designing the practical power supply.