Title :
Analysis of a bidirectional coupled-inductor Cuk converter operating in sliding mode
Author :
Martínez-Salamero, Luis ; Calvente, Javier ; Giral, Roberto ; Poveda, Alberto ; Fossas, Enric
Author_Institution :
Dept. d´´Enginyeria Electron., Univ. Rovira i Virgili, Tarragona, Spain
fDate :
4/1/1998 12:00:00 AM
Abstract :
Analytic models for a bidirectional coupled-inductor Cuk converter operating in sliding mode are described. Using a linear combination of the converter four state variable errors as a general switching surface, the expression for the equivalent control is derived and the coordinates of the equilibrium point are obtained. Particular cases of the general switching surface are subsequently analyzed in detail: (1) surfaces for ideal line regulation, (2) surfaces for ideal load regulation, and (3) surfaces for hysteretic current control. Simulation results verifying the analytical predictions are presented
Keywords :
DC-DC power convertors; power inductors; switching circuits; variable structure systems; DC-DC switching converter; analytic model; bidirectional coupled-inductor Cuk converter; equilibrium point; equivalent control; hysteretic current control; line regulation; load regulation; simulation; sliding mode; switching surface; variable structure system; Capacitors; Error correction; Predictive models; Pulse width modulation; Pulse width modulation converters; Regulators; Sliding mode control; Surface treatment; Switches; Switching converters;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
