Chaos control for the Boost converter under current-mode control

Abstract

Chaotic phenomena of the Boost converter under current-mode control are studied further. According to the reference current Iref which works as a bifurcation parameter, the bifurcation map, the 3-period window diagram and the strange attractors of the intermittent chaos are obtained by applying the discrete map. By employing a nonlinear feedback controller which is a piecewise-quadratic function in the form of x|x| in the chaotic Boost converter, chaos control of the Boost converter is achieved. Numerical simulation shows that this method is suitable for the stability control of diversified periodic orbits by adjusting the feedback gain in the nonlinear feedback controller.