Title :
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
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;
Conference_Titel :
Power Electronics Conference (COBEP), 2013 Brazilian
Conference_Location :
Gramado
DOI :
10.1109/COBEP.2013.6785149
