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A new control strategy of a VSC-HVDC System for high-quality supply of industrial plants
ABB AB, HVDC System, Ludvika.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0003-4074-9529
ABB AB, Corporate research.
2007 (engelsk)Inngår i: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 1937-4208, Vol. 22, nr 4, s. 2386-2394Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper proposes a control strategy for a VSC-HVDC for improving the quality of power supply to industrial plants. The new idea of this control strategy is to give high priority to keep up the ac voltage and slightly decrease the frequency during disturbances. The motivation for choosing this strategy is that the sensitive processing industries are much more sensitive to voltage drops as compared with frequency deviations. In order to test this control strategy, the dynamic performance of a VSC-HVDC supplied industrial plant is investigated during sudden load disturbances, balanced and unbalanced faults from the grid. Simulation results obtained using PSCAD/EMTDC show that with the use of the proposed control strategy, the system can ride through disturbances such as motor starting and faults by slightly decreasing the frequency. The current limit of the VSC-HVDC converters has a significant influence on the dynamics of the system. An increase of the current limit significantly improves the power quality of the system. The comparison of the behavior between a pure ac supplied industrial plant and a VSC-HVDC supplied industrial plant clearly shows the capability of the VSC-HVDC to mitigate voltage dips during faults.

sted, utgiver, år, opplag, sider
2007. Vol. 22, nr 4, s. 2386-2394
HSV kategori
Forskningsprogram
Elkraftteknik; Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-7822DOI: 10.1109/TPWRD.2007.899622Lokal ID: 63de9550-a49b-11dc-8fee-000ea68e967bOAI: oai:DiVA.org:ltu-7822DiVA, id: diva2:980712
Merknad
Validerad; 2007; 20071207 (matbol)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2017-11-24bibliografisk kontrollert

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