Power conditioning using dynamic voltage restorers under different voltage sag types
Voltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs). By definition, a DVR is a controlled voltage source inserted between the network...
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doaj-ff27881a87f64540af704988501e34bf2020-11-24T20:43:26ZengElsevierJournal of Advanced Research2090-12322090-12242016-01-01719510310.1016/j.jare.2015.03.001Power conditioning using dynamic voltage restorers under different voltage sag typesAhmed M. Saeed0Shady H.E. Abdel Aleem1Ahmed M. Ibrahim2Murat E. Balci3Essam E.A. El-Zahab4Electrical Power and Machines Engineering, Cairo University, Giza 12613, EgyptMathematical, Physical and Life Sciences, 15th of May Higher Institute of Engineering, 15th of May City, Cairo, EgyptElectrical Power and Machines Engineering, Cairo University, Giza 12613, EgyptElectrical and Electronics Engineering, Balikesir University, Balikesir, TurkeyElectrical Power and Machines Engineering, Cairo University, Giza 12613, EgyptVoltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs). By definition, a DVR is a controlled voltage source inserted between the network and a sensitive load through a booster transformer injecting voltage into the network in order to correct any disturbance affecting a sensitive load voltage. In this paper, modelling of DVR for voltage correction using MatLab software is presented. The performance of the device under different voltage sag types is described, where the voltage sag types are introduced using the different types of short-circuit faults included in the environment of the MatLab/Simulink package. The robustness of the proposed device is evaluated using the common voltage sag indices, while taking into account voltage and current unbalance percentages, where maintaining the total harmonic distortion percentage of the load voltage within a specified range is desired. Finally, several simulation results are shown in order to highlight that the DVR is capable of effective correction of the voltage sag while minimizing the grid voltage unbalance and distortion, regardless of the fault type.http://www.sciencedirect.com/science/article/pii/S2090123215000302Dynamic voltage restorersFaultsPower conditionersPower qualityPower system harmonicsUnbalanced conditions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ahmed M. Saeed Shady H.E. Abdel Aleem Ahmed M. Ibrahim Murat E. Balci Essam E.A. El-Zahab |
spellingShingle |
Ahmed M. Saeed Shady H.E. Abdel Aleem Ahmed M. Ibrahim Murat E. Balci Essam E.A. El-Zahab Power conditioning using dynamic voltage restorers under different voltage sag types Journal of Advanced Research Dynamic voltage restorers Faults Power conditioners Power quality Power system harmonics Unbalanced conditions |
author_facet |
Ahmed M. Saeed Shady H.E. Abdel Aleem Ahmed M. Ibrahim Murat E. Balci Essam E.A. El-Zahab |
author_sort |
Ahmed M. Saeed |
title |
Power conditioning using dynamic voltage restorers under different voltage sag types |
title_short |
Power conditioning using dynamic voltage restorers under different voltage sag types |
title_full |
Power conditioning using dynamic voltage restorers under different voltage sag types |
title_fullStr |
Power conditioning using dynamic voltage restorers under different voltage sag types |
title_full_unstemmed |
Power conditioning using dynamic voltage restorers under different voltage sag types |
title_sort |
power conditioning using dynamic voltage restorers under different voltage sag types |
publisher |
Elsevier |
series |
Journal of Advanced Research |
issn |
2090-1232 2090-1224 |
publishDate |
2016-01-01 |
description |
Voltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs). By definition, a DVR is a controlled voltage source inserted between the network and a sensitive load through a booster transformer injecting voltage into the network in order to correct any disturbance affecting a sensitive load voltage. In this paper, modelling of DVR for voltage correction using MatLab software is presented. The performance of the device under different voltage sag types is described, where the voltage sag types are introduced using the different types of short-circuit faults included in the environment of the MatLab/Simulink package. The robustness of the proposed device is evaluated using the common voltage sag indices, while taking into account voltage and current unbalance percentages, where maintaining the total harmonic distortion percentage of the load voltage within a specified range is desired. Finally, several simulation results are shown in order to highlight that the DVR is capable of effective correction of the voltage sag while minimizing the grid voltage unbalance and distortion, regardless of the fault type. |
topic |
Dynamic voltage restorers Faults Power conditioners Power quality Power system harmonics Unbalanced conditions |
url |
http://www.sciencedirect.com/science/article/pii/S2090123215000302 |
work_keys_str_mv |
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1716819975885291520 |