Incremental passivity based parallel operation of uninterruptible power supplies without communication — Towards a digital implementation

Author

de Azevedo Avila, Marcelo ; Torres, Leonardo A. B. ; Seixas, Paulo Fernando

Author_Institution

Programa de Pos-Grad. em Eng. Eletr. - PPGEE, Univ. Fed. de Minas Gerais - UFMG, Belo Horizonte, Brazil

fYear

2013

fDate

27-31 Oct. 2013

Firstpage

414

Lastpage

419

Abstract

The digital implementation of an approach to the parallel operation of uninterruptible power supplies (UPS) is investigated. The method is developed in time domain and it relies on the natural tendency to synchronization of interconnected incrementally dissipative nonlinear oscillators. Simulations of two interconnected UPS systems to a given resistive load are carried out, taking into consideration specific problems associated with the practical implementation in a Digital Signal Processor (DSP) based system.

Keywords

digital signal processing chips; nonlinear network analysis; oscillators; synchronisation; uninterruptible power supplies; digital implementation; digital signal processor; incremental passivity; incrementally dissipative nonlinear oscillators; interconnected nonlinear oscillators; parallel operation; uninterruptible power supplies; Feedback loop; Inverters; Load modeling; Oscillators; RLC circuits; Synchronization; Uninterruptible power systems; Digital Implementation; Parallel Operation; Passivity Based Control; Uninterruptible Power Supplies;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (COBEP), 2013 Brazilian

Conference_Location

Gramado

ISSN

2175-8603

Type

conf

DOI

10.1109/COBEP.2013.6785149

Filename

6785149