Control of chaotic behaviour in buck-boost DC-DC converters

Chaos control is used to design a controller that is able to eliminate the chaotic behaviour of nonlinear systems that experience such phenomena. The paper describes the control of the bifurcation behaviour of a DC-DC buck-boost converter used to provide an interface between energy storage batteries and photovoltaic (PV) arrays for renewable energy sources. The paper presents a delayed feedback control scheme in a peak current-mode controlled DC-DC buck-boost converter operating in the continuous current conduction mode. MATLAB/SIMULINK simulation results show the effectiveness and robustness of the scheme.