Dynamic analysis of hysteresis control strategy based on ripple characteristics

Author

Jianfeng Dai ; Jinbin Zhao ; Keqing Qu ; Fen Li ; Wei Cao

Author_Institution

Coll. of Electr. Eng., Shanghai Univ. of Electr. Power, Shanghai, China

fYear

2014

fDate

14-18 Sept. 2014

Firstpage

3755

Lastpage

3459

Abstract

This paper propose a fast transient buck converter using hysteresis PWM control, which is based on output ripple voltage and inductor ripple current for charging and discharging characteristics of capacitor C. The proposed control strategy is very simple and solves the compensation problem of the error amplifier in conventional voltage PWM control. It achieves both faster transient response and quasi switching frequency to meet the challenges of the load. At last, the steady-state and dynamic operation of the proposed control strategy are analyzed and verified by simulation and experimental results.

Keywords

PWM power convertors; amplifiers; capacitors; hysteresis; inductors; switching convertors; transient response; amplifier error compensation; capacitor charging characteristics; capacitor discharging characteristics; dynamic operation; fast transient buck converter; hysteresis PWM control strategy dynamic analysis; inductor ripple current; quasiswitching frequency; ripple voltage; steady-state operation; transient response; Capacitors; Hysteresis; Inductors; Radio frequency; Switching frequency; Transfer functions; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2014 IEEE

Conference_Location

Pittsburgh, PA

Type

conf

DOI

10.1109/ECCE.2014.6953911

Filename

6953911