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| Titre: | More stability and robustness with the multi-loop control solution for dynamic voltage restorer (DVR) |
| Auteur(s): | Abdelkhalek, Othmane
Haidas, Mohammed
Kechich, Abderrahmane
Benslimane, Tarek
Benachaiba, Chellali |
| Mots-clés: | Custom power
Power quality
Voltage sags
Voltage swells
Current controller
Voltage controller
PWM
DVR |
| Date de publication: | 2009 |
| Collection/Numéro: | Serbian journal of electrical engineering/ Vol.6, N°1 (2009);pp.75-88 |
| Résumé: | This paper presents the application of dynamic voltage restorers (DVR) on power distribution systems for mitigation of voltage sags/swells at critical loads. DVR is one of the compensating types of custom power devices. An adequate modeling and simulation of DVR, including controls in MATLAB, based on forced-commutated voltage source converter (VSC), has been proved suitable for compensating the voltage sags/swells. In this paper, a double loop control method is proposed for the improvement of the stability of DVR during the load current variation. For the main loop (Outer Voltage Loop), we use a PI controller for the regulation of the filter condenser voltage. The second loop (Inner Current Loop) also uses a PI controller to control the disturbances current during load variation. Simulation results are presented to illustrate and understand the performances of DVR in the compensation of voltage sags/swell even with variation load condition |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/jspui/handle/123456789/460 |
| Collection(s) : | Publications Internationales
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