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A New Approach for Benefit Evaluation of Multiterminal VSC–HVDC Using A Proposed Mixed AC/DC Optimal Power Flow
Chalmers, Div Elect Power Engn, S-41296 Gothenburg, Sweden.
Chalmers, Div Elect Power Engn, S-41296 Gothenburg, Sweden.
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. Chalmers, Div Elect Power Engn, S-41296 Gothenburg, Sweden.ORCID iD: 0000-0003-4763-9429
SP Technical Research Institute of Sweden, Borås 501 15, Sweden.
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2014 (English)In: IEEE Transactions on Smart Grid, ISSN 1949-3053, ISSN 1949-3053, Vol. 29, no 1, 432-443 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, an extended optimal power-flow (OPF) model incorporating a detailed model of a voltage-source con- verter-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 op- erational 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
Piscataway, 2014. Vol. 29, no 1, 432-443 p.
Keyword [en]
AC/DC system, cost minimization, cost-benefit analysis, loss minimization, multiterminal VSC-HVDC, optimal power flow.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
URN: urn:nbn:se:kth:diva-173894DOI: 10.1109/TPWRD.2013.2267056ISI: 000330768900055ScopusID: 2-s2.0-84893760118OAI: diva2:855759
Chalmers Energy initiative

QC 20150923

Available from: 2015-09-22 Created: 2015-09-22 Last updated: 2015-09-23Bibliographically approved

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