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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Frequency control capability of VSC-HVDC transmission system

Elansari, A.S. and Finney, S.J. and Burr, J. and Edrah, M.F. (2015) Frequency control capability of VSC-HVDC transmission system. In: 11th IET International Conference on AC and DC Power Transmission. IEEE, pp. 1-6. ISBN 978-1-84919-982-7

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Abstract

High voltage direct current (HVDC) systems have been used as an effective solution to transmit power over long distances. Performance of HVDC systems has significantly improved with the emergence of voltage source converter based HVDC (VSC-HVDC). Increased controllability provides independent control of active and reactive power which facilitates controlling of voltage and frequency. This paper investigates the frequency control capability of VSC-HVDC to determine the improvement extent that VSC HVDC systems provide for the frequency recovery and system inertia. Two frequency control strategies using dc voltage and active power outer loops are investigated. The analysis is carried out using a time domain simulator, where the tie line in the Kundur test system is replaced by VSC-HVDC. Simulation results have shown that frequency control capability of VSC-HVDC dramatically improves the frequency performance, especially in isolated power systems.