Discrete-time multiple resonant controller design for uninterruptible power supplies. Issue 1 (July 2017)

• Record Type: Journal Article
• Authors: Keiel, Guilherme; Flores, Jeferson V.; Pereira, Luís F.A.; Salton, Aurelio T.
• Is Part Of: IFAC-PapersOnLine. Volume 50:Issue 1(2017)
• Page Start: 6717
• Page End: 6722
• Publication Date: 2017-07
• Subjects: Discrete-time resonant controller -- uninterruptible power supplies -- discretization methods -- robust control -- linear matrix inequality; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2017.08.1169
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: This paper casts the design problem of multiple resonant controllers for uninterruptible power supplies in a robust discrete-time framework. Euler and Adams-Bashforth discretization methods are considered to describe the uncertain open-loop plant and periodic reference tracking/disturbance rejection is guaranteed by the introduction of a discrete-time resonant controller in the control loop. Controller parameters are determined by the solution of a convex optimization problem subject to linear matrix inequality constraints. Simulation results in 3.5kVA power inverter are considered to illustrate the method.