Systematic approach to robust nonlinear voltage control of buck/boost converter

Author

Sasaki, Seigo ; Inoue, Tadashi

Author_Institution

Dept. of Electron. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

3

fYear

2000

fDate

2000

Firstpage

1408

Abstract

Nonlinear state feedback controllers are systematically derived to achieve output voltage control of a buck/boost converter behind variations of input voltage and resistive load. The controller design is carried out on the basis of a state averaged model of the converter, which is a bilinear system. The control problems are treated as nonlinear H^∞ state feedback control problems for the bilinear system, and are solved via the Lyapunov-based game theory approach. Convex programming technique gives concrete controllers solving the problems via considering a domain of voltage and current in the converter circuit. Computer simulations show efficiency of the control system and the control system design approach

Keywords

DC-DC power convertors; H^∞ control; Lyapunov methods; convex programming; nonlinear control systems; robust control; state feedback; voltage control; Lyapunov-based game theory; bilinear system; buck/boost converter; computer simulations; converter circuit; convex programming technique; input voltage; nonlinear H^∞ state feedback control; nonlinear state feedback controllers; resistive load; robust nonlinear voltage control; state averaged model; Circuits; Concrete; Control system synthesis; Control systems; Game theory; Nonlinear control systems; Nonlinear systems; Robust control; State feedback; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.880514

Filename

880514