Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/60846

TitleExperimental evaluation of a control system based on a dual-DSP architecture for a unified power quality conditioner
Author(s)Monteiro, Luís
Exposto, Bruno
Pinto, Gabriel
Monteiro, Vitor
Aredes, Maurício
Afonso, João L.
KeywordsDSP
UPQC
power quality
digital control
real-time systems
Issue date5-May-2019
PublisherMultidisciplinary Digital Publishing Institute
JournalEnergies
Abstract(s)An experimental evaluation of a digital control system based on a dual Digital Signal Processor (DSP) architecture is proposed for a three phase Unified Power Quality Conditioner (UPQC). A classical UQPC is constituted by two power conditioners, connected in series and shunted with the power grid, and sharing a common DC-link. In a smart grid scenario of operation, a UPQC will be fundamental for compensating power quality problems, also contributing to improving the efficiency of the electrical grids from a global perspective. The UPQC operation requires a bidirectional energy transfer between the two power conditioners, however, respecting some constraints, they can be controlled independently. In order to take advantage of this characteristic, the control algorithms can be executed on two independent DSPs, without any communication between them and maintaining the operational characteristics of the UPQC. Comparing with the classical control architecture based on a single DSP, with the proposed dual DSP architecture, the computational effort of each DSP is decreased of about 35%, allowing to increase the sampling rate. Therefore, the main advantages of the proposed approach are the minimization of delays caused by the processing time, which are very common in digital control systems, as well as the increment of the UPQC performance. Along the paper, detailed analysis of the processing speed and memory requirements to implement the UPQC control algorithms in both DSPs is presented. The paper also presents a set of detailed experimental results, obtained with a developed 5 kVA laboratory prototype of UPQC, which was used to evaluate the performance of the proposed dual DSP architecture.
TypeArticle
URIhttp://hdl.handle.net/1822/60846
DOI10.3390/en12091694
ISSN1996-1073
Peer-Reviewedyes
AccessOpen access
Appears in Collections:BUM - MDPI

Files in This Item:
File Description SizeFormat 
energies-12-01694.pdf5,02 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID