CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT
The present work focuses on modelling of sensor-less Direct Power Control based on Virtual Flux (DPC-VF) for three levels AC/DC converter for wind power system in the case of grid abnormality. As a fact, when an unbalance appears in the grid, the negative sequence affects the quality of Dc-link at t...
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Format: | Article |
Language: | English |
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Taylor's University
2018-07-01
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Series: | Journal of Engineering Science and Technology |
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Online Access: | http://jestec.taylors.edu.my/Vol%2013%20issue%207%20July%202018/13_7_24.pdf |
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author | A. GAFAZI A. CHEKNANE I. MERZOUK B. SEDDIK |
author_facet | A. GAFAZI A. CHEKNANE I. MERZOUK B. SEDDIK |
author_sort | A. GAFAZI |
collection | DOAJ |
description | The present work focuses on modelling of sensor-less Direct Power Control based on Virtual Flux (DPC-VF) for three levels AC/DC converter for wind power system in the case of grid abnormality. As a fact, when an unbalance appears in the grid, the negative sequence affects the quality of Dc-link at the output of the converter and makes deterioration in grid current. In order to improve the behaviour of the converter under grid abnormality, the grid currents and Virtual Flux are decomposed in separating positive and negative sequence using double second order generalized integrator Direct Power Control (DSOGIFLL) then compensating active and reactive powers are calculated according to the control objective and injected in the referencing one. The proposed controller ensures voltage balance in DC-link capacitors by using redundant vectors in a space vector modulation block without needing additional components. In order to test the effectiveness of the control scheme, a numerical simulation is performed using the Matlab-Simulink software. The results prove the validity of the proposed control algorithm. |
first_indexed | 2024-12-19T03:59:41Z |
format | Article |
id | doaj.art-3833eef125c342588017e2505052c546 |
institution | Directory Open Access Journal |
issn | 1823-4690 |
language | English |
last_indexed | 2024-12-19T03:59:41Z |
publishDate | 2018-07-01 |
publisher | Taylor's University |
record_format | Article |
series | Journal of Engineering Science and Technology |
spelling | doaj.art-3833eef125c342588017e2505052c5462022-12-21T20:36:42ZengTaylor's UniversityJournal of Engineering Science and Technology1823-46902018-07-0113722362245CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULTA. GAFAZI0A. CHEKNANE1I. MERZOUK2B. SEDDIK3Applied Automation and Industrial Diagnostic Laboratory, Faculty of Science and Technology, University of Djelfa, AlgeriaLaboratoire des semi-conducteurs et matériaux fonctionnels, Université Amar Telidji de Laghouat, Bd des Martyrs. BP37G, Laghouat 03000, AlgeriaApplied Automation and Industrial Diagnostic Laboratory, Faculty of Science and Technology, University of Djelfa, AlgeriaG2Elab, Grenoble INP, FranceThe present work focuses on modelling of sensor-less Direct Power Control based on Virtual Flux (DPC-VF) for three levels AC/DC converter for wind power system in the case of grid abnormality. As a fact, when an unbalance appears in the grid, the negative sequence affects the quality of Dc-link at the output of the converter and makes deterioration in grid current. In order to improve the behaviour of the converter under grid abnormality, the grid currents and Virtual Flux are decomposed in separating positive and negative sequence using double second order generalized integrator Direct Power Control (DSOGIFLL) then compensating active and reactive powers are calculated according to the control objective and injected in the referencing one. The proposed controller ensures voltage balance in DC-link capacitors by using redundant vectors in a space vector modulation block without needing additional components. In order to test the effectiveness of the control scheme, a numerical simulation is performed using the Matlab-Simulink software. The results prove the validity of the proposed control algorithm.http://jestec.taylors.edu.my/Vol%2013%20issue%207%20July%202018/13_7_24.pdfDirect power control based virtual fluxDouble second order generalized integratorGrid abnormalityThree levels AC/DC converter |
spellingShingle | A. GAFAZI A. CHEKNANE I. MERZOUK B. SEDDIK CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT Journal of Engineering Science and Technology Direct power control based virtual flux Double second order generalized integrator Grid abnormality Three levels AC/DC converter |
title | CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT |
title_full | CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT |
title_fullStr | CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT |
title_full_unstemmed | CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT |
title_short | CONTROL OF A THREE LEVELS AC/DC CONVERTER WITH VIRTUAL-FLUX DIRECT POWER CONTROLLING METHOD FOR GRID-CONNECTED WIND POWER SYSTEM UNDER GRID’S FAULT |
title_sort | control of a three levels ac dc converter with virtual flux direct power controlling method for grid connected wind power system under grid s fault |
topic | Direct power control based virtual flux Double second order generalized integrator Grid abnormality Three levels AC/DC converter |
url | http://jestec.taylors.edu.my/Vol%2013%20issue%207%20July%202018/13_7_24.pdf |
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