Title :
Analysis and design of H∞ control of nonminimum phase-switching converters
Author :
Vidal-Idiarte, E. ; Martínez-Salamero, L. ; Valderrama-Blavi, H. ; Guinjoan, F. ; Maixé, J.
Author_Institution :
Dept. d´´Enginyeria Electron., Electrica i Automatica, Univ. Rovira i Virgili, Tarragona, Spain
Abstract :
The application of the H∞ theory to control nonminimum phase dc-to-dc switching converters is investigated in this paper. Using an averaged linear model of the converter, a robust controller is developed, guaranteeing stability and the desired closed-loop dynamic response. Boost and buck-boost converters with H∞ control exhibit excellent performances with good tracking and high rejection capability of disturbances introduced by changes of load and input voltage by computer simulation. Experimental results are also obtained in a boost converter and compared with those obtained using current peak control and sliding-mode control.
Keywords :
DC-DC power convertors; H∞ control; closed loop systems; dynamic response; power system control; robust control; switching convertors; H∞ control; boost converter; buck-boost converter; closed-loop dynamic response; computer simulation; design analysis; disturbance rejection; linear model; nonminimum phase DC-to-DC switching converter; robust controller; stability; tracking capability; Associate members; Control system synthesis; Impedance; Load management; Regulators; Robust control; Robust stability; Sliding mode control; Switching converters; Voltage control;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
DOI :
10.1109/TCSI.2003.816337
