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A New Approach for Benefit Evaluation of Multiterminal VSC-HVDC Using A Proposed Mixed AC/DC Optimal Power Flow
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Elektricitet.ORCID iD: 0000-0002-5121-8152
2013 (English)In: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 1937-4208, Vol. 99Article in journal (Refereed) Published
Abstract [en]

In this paper, an extended optimal power-flow (OPF) model incorporating a detailed model of a voltage-source converter-based–multiterminal high-voltage direct current system (VSC–MTDC) is proposed, hereafter referred to as the mixed ac/dc OPF (M-OPF) model. A cost-benefit analysis approach using the M-OPF model as the calculation engine is proposed to determine the preferred VSC-MTDC alternative to be installed in an existing ac transmission system. In this approach, the operational benefits of VSC–MTDC systems are evaluated against their investment costs to derive the benefit-to-cost ratios (BCR) which reflect the cost-effectiveness of the alternatives. A case study has been carried out using a modified Nordic 32-bus system. The results of the study show that VSC–MTDC systems might lead to a reduction in total operation cost, and the reduction of the total system transmission loss depends to a large extent on the VSC–MTDC configuration. The results from sensitivity analyses show that if the VSC loss could be reduced to a third of the original level, the total benefit from the system would be increased by about 70%. A suggestion for the placement and configuration of a VSC–MTDC system is made based on calculated BCRs.

Place, publisher, year, edition, pages
2013. Vol. 99
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Natural Sciences
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URN: urn:nbn:se:ri:diva-6495DOI: 10.1109/tpwrd.2013.2267056Local ID: 15816OAI: oai:DiVA.org:ri-6495DiVA, id: diva2:964333
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2018-08-13Bibliographically approved

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Bergman, Anders

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