NONSMOOTH DYNAMICS AND FPIC CHAOS CONTROL IN A DC-DC ZAD-STRATEGY POWER CONVERTER
Gerard Olivar, Fabiola Angulo, John A. Taborda, Fredy E. Hoyos
Nonsmooth phenomena such as discontinuity-induced bifurcations, due to saturations and switchings are reported
in a power converter. They lead to chaos when a significant parameter is varied. Then, in this paper a novel tool
for controlling chaos in a dynamical system is designed and applied to a buck converter driven
with a PWM centered pulse and (Zero Average Dynamics) ZAD strategy. Chaotic operation has been stabilized with the
so-called Fixed Point Induced Control (FPIC) technique. Numerical simulations and experimental results are reported.
We can see in the results that the FPIC technique is a fast and efficient control for recovering stable periodic motion
from chaotic operation. Appropriate software-reconfigurable hardware using a DSP-based rapid prototyping
tool (RPT) is used to support the analytical and numerical discussion.