Alternative resonant controller design for Uninterruptible Power Supplies (UPS)

Author

Alves Pereira, Luis F. ; Medeiros de Carvalho, Fabio ; Vieira Flores, Jeferson

Author_Institution

Dept. of Electr. Eng., Univ. Fed. do Rio Grande do Sul, Porto Alegre, Brazil

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

3311

Lastpage

3316

Abstract

The main objective of this paper is to present an alternative procedure to design resonant controllers for Uninterruptible Power Supplies (UPS). With this aim, a set of equations to determine controller gains is proposed based on the desired output response and the parameters of a class of UPS systems. First, the desired closed-loop poles are determined considering the Linear Matrix Inequalities (LMI) framework. Based on the characteristic polynomial representing the desired closed-loop performance and the plant parameters, algebraic conditions are derived to determine the controller gains for a range of UPS parameters and loads. Simulation and experimental results illustrate the effectiveness of the proposed methodology.

Keywords

closed loop systems; matrix algebra; polynomials; uninterruptible power supplies; LMI framework; UPS system; alternative resonant controller design; characteristic polynomial; closed-loop performance; closed-loop pole; linear matrix inequality; uninterruptible power supplies; Closed loop systems; Frequency control; Inverters; Load modeling; Polynomials; Uninterruptible power systems; Linear Matrix Inequalities (LMI); Resonant Controller; Uninterruptible power systems (UPS);

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699659

Filename

6699659