Title :
H∞ Control of multi-module parallel DC-DC converters
Author :
Figueres, Emilio ; Garcera, G. ; Pascual, Mario ; Abellan, A.
Author_Institution :
Dept. of Electron. Eng., Univ. Politecnica de Valencia
Abstract :
This paper proposes the design of the Average Current-mode Control loop applied to parallel converters by means of H∞ Control Theory. The sensitivity to low-frequency disturbances of the converter can be drastically reduced by applying H∞ control techniques, preserving the loop stability with respect to high frequency uncertainties of the linear model. The analytical study is validated by experimental measurements carried out on a 5V-20A, 50kHz parallel-module converter composed by four buck DC-DC power stages.
Keywords :
DC-DC power convertors; H∞ control; control system analysis; control system synthesis; electric current control; robust control; stability; 20 A; 5 V; 50 kHz; H∞ control theory; average current-mode control loop design; buck power convertors; control simulation; high-frequency uncertainties; loop stability; low-frequency disturbances; multi-module parallel DC-DC power converters;
Conference_Titel :
Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7369-3
DOI :
10.1109/ISIE.2002.1025933
