Title :
LQR control of an asymmetrical interleaved boost converter working in inherent DCM
Author :
Arango, E. ; Calvente, J. ; Giral, R. ; El Aroudi, A. ; Martinez-Salamero, L.
Author_Institution :
Dept. d´Enginyeria Electron., Electr. i Autom., Univ. Rovira i Virgili, Tarragona, Spain
Abstract :
The analysis in steady state, the controllability calculation and the linear quadratic regulator (LQR) control design for a new fifth order DC/DC boost converter are presented. This new converter is based on the asymmetric connection of two boost cells with complementary activation of their switches giving rise to an asymmetrical interleaved dual boost (AIDB) converter. This system inherently operates in discontinuous conduction mode (DCM). Because of this conduction mode a new outline for getting the converter state apace averaged model is applied. This model is verified by numerical simulation. Based on this model, a LQR control was designed. Matlab-Simulink and PSIM simulation results confirm the accuracy of the model derived.
Keywords :
DC-DC power convertors; control system synthesis; linear quadratic control; numerical analysis; DCM; LQR control; Matlab; PSIM; Simulink; asymmetrical interleaved boost converter; asymmetrical interleaved dual boost converter; discontinuous conduction mode; fifth order DC/DC boost converter; linear quadratic regulator control; Capacitors; Diodes; Filters; Inductors; Integrated circuit interconnections; Interleaved codes; Mathematical model; Steady-state; Switches; Switching converters;
Conference_Titel :
Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on
Conference_Location :
Dubrovnik, Croatia
Print_ISBN :
0-7803-8738-4
DOI :
10.1109/ISIE.2005.1529004
