Title :
Small-signal modeling and control of ZVT-PWM boost converters
Author :
Lin, Jong-Lick ; Chang, Chin-Hua
Author_Institution :
Dept. of Eng. Sci., Nat. Cheng Kung Univ., Taiwan, Taiwan
fDate :
1/1/2003 12:00:00 AM
Abstract :
A small-signal model for zero-voltage-transition pulse width modulation (ZVT-PWM) boost converters is derived in this paper. The accuracy of the developed model is verified by experimental measurement. It shows that the ZVT-PWM boost converters exhibit better dynamical behavior than the conventional PWM boost converters. To achieve output voltage regulation and line voltage disturbance rejection of ZVT-PWM boost converters, a classical controller and a modified integral variable structure controller are designed. The output voltage regulation in the presence of line voltage and load variations for both controllers are compared by experimental results.
Keywords :
DC-DC power convertors; PWM power convertors; control system synthesis; switching convertors; variable structure systems; voltage control; DC/DC power conversion; ZVT-PWM boost converters; control design; dynamical behavior; integral variable structure controller; line load variations; line voltage disturbance rejection; line voltage variations; output voltage regulation; small-signal modeling; Capacitors; Circuit analysis; Power system modeling; Pulse width modulation; Pulse width modulation converters; Resonance; Steady-state; Switches; Switching converters; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2002.807176
