Article

An Investigations into the Fast-and Slow–Scale Instabilities of an Energy Generation System with a Fuzzy Hysteretic Control

01/2006;

ABSTRACT This paper presents an investigation of the nonlinear phenomena in the current mode controlled boost converter. The boost converter is used into an energy generation system with a PEM-Fuel Cell as energy source and a battery stack as energy storage device. The bifurcation diagrams with the reference current as the variable parameter have been obtained. The simulation results show that the converter shifts between period one, period two, higher periods and chaos as the some parameter is varied. The bifurcation phenomena have been reported for a clocked hysteretic controller. Using a clocked fuzzy hysteretic controller, a comparison of the effects on the DC/DC Boost converter response in state space, under reference current variations, load variations, and different component variations is performed.

Download full-text

Full-text

Available from: Nicu Bizon, Apr 17, 2014
0 Followers
 · 
64 Views
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: In this paper is analyzed by simulations the nonlinear phenomena in the boost converter used as power interface into the energy generation system (EGS). Transition to chaos in one or more stages depends on the initial conditions and the bifurcation diagrams with the reference current as the variable parameter have been reported. The simulation results show that the EGS without large energy storage device (ESD) shift to chaos as the parameter is modified. Two kind of the peak current controller are used. The proposed fuzzy peak current controller provides better dynamic response, robustness against system uncertainty disturbances, and an implicit stability proof.
    Power Electronics and Applications, 2007 European Conference on; 10/2007