A New Approach for Benefit Evaluation of Multi-Terminal VSC-HVDC Using A Proposed Mixed AC/DC Optimal Power Flow
Artikel i vetenskaplig tidskrift, 2014

In this paper, an extended Optimal Power Flow (OPF) model incorporating a detailed model of a Voltage Source Converter based Multi-Terminal 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.

Cost minimization

Cost-Benefit Analysis

Multi-terminal VSC-HVDC

Optimal Power Flow.

Loss minimization

AC/DC system

Författare

Feng Wang

Chalmers, Energi och miljö, Elkraftteknik

Anh Tuan Le

Chalmers, Energi och miljö, Elkraftteknik

Lina Bertling Tjernberg

Chalmers, Energi och miljö, Elkraftteknik

Anders Mannikoff

SP Sveriges Tekniska Forskningsinstitut

Jörgen Blennow

SP Sveriges Tekniska Forskningsinstitut

IEEE Transactions on Power Delivery

0885-8977 (ISSN)

Vol. 29 432-443

Styrkeområden

Energi

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.1109/TPWRD.2013.2267056