Title :
A robust discrete-time controller for DC-AC inverters
Author :
Willmann, Gustavo ; Coutinho, Daniel F. ; Pereira, Luís F A
Author_Institution :
Dept. of Eng. & Dev., CP Eletronica, Porto Alegre, Brazil
Abstract :
This paper presents a robust control strategy for DC-AC power inverters based on the linear matrix inequality (LMI) framework. More precisely, a constant discrete-time state feedback controller is proposed taking into account the average model. The strategy assures the local stability of the closed-loop system for all admissible linear load variation while minimizing the effects of nonlinear loads. Practical results show the advantages of the approach over classical control design techniques.
Keywords :
DC-AC power convertors; closed loop systems; discrete time systems; invertors; linear matrix inequalities; state feedback; DC-AC power inverter; LMI; average model; closed-loop system; linear load variation; linear matrix inequality; nonlinear load; robust discrete-time controller; state feedback controller; Control systems; Industrial control; Linear matrix inequalities; Mathematical model; Power system modeling; Pulse width modulation; Pulse width modulation inverters; Robust control; Sliding mode control; Uninterruptible power systems;
Conference_Titel :
Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE
Print_ISBN :
0-7803-9252-3
DOI :
10.1109/IECON.2005.1568906
