Title :
Robust control design for uninterruptible power systems
Author :
Willmann, Gustavo ; Coutinho, Daniel F. ; Pereira, Luís F A ; Líbano, Fausto E.
Author_Institution :
Dept. of Electr. Eng., Pontificia Univ. Catolica do Rio Grande do Sul, Porto Alegre, Brazil
Abstract :
This paper presents a robust control strategy for uninterruptible power systems (UPS) based on the linear matrix inequality (LMI) framework. Taking into account the average model of the UPS, a state feedback controller is proposed that assures the local stability of the closed-loop system for all admissible load variation while minimizing an upper-bound on the 2-norm of the input-to-output operator. A real-life example is used to demonstrate the approach.
Keywords :
closed loop systems; linear matrix inequalities; robust control; stability; state feedback; uninterruptible power supplies; LMI; UPS; closed-loop system; input-to-output operator; linear matrix inequality; load variation; robust control; stability; state feedback controller; uninterruptible power system; Control systems; Industrial control; Linear matrix inequalities; Load management; Power system modeling; Pulse width modulation; Robust control; Signal design; Sliding mode control; Uninterruptible power systems;
Conference_Titel :
Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE
Print_ISBN :
0-7803-8730-9
DOI :
10.1109/IECON.2004.1433306
