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Dynamic Behaviour of Multi-Terminal VSC-Based HVDC after a Converter Outage: DC Control Strategy

F. Gonzalez-Longatt, S. Arnaltes, J.L. Rodríguez-Amenedo

2016/5/20

Abstract

The aim of this paper is to evaluate the effect of DC-voltage control strategy on dynamic behaviour of multi-terminal Voltage-Source Converter (VSC)-Based HVDC after a converter outage. In this paper, two dc voltage control strategies are considered: (i) standard voltage margin method (SVMM) and (ii) standard voltage-droop method (SVDM). The impact is evaluated in this paper using time-domain simulations on simple test system using DIgSILENT® PowerFactoryTM considering a sudden disconnection of a converter-station. Simulation results demonstrate how important is the dc-voltage control strategy and the location/number of dc-buses involved in the dc-voltage on the dynamic response of the MTDC systems. The voltage margin control is capable to survive a converter outage just if this converter is operating on constant power mode.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 14)
Pages:199-203 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/05/04
REF: 266-16 Issue Date: May 2016
DOI:10.24084/repqj14.266 Publisher: EA4EPQ

Authors and affiliations

F. Gonzalez-Longatt(1), S. Arnaltes(2), J.L. Rodríguez-Amenedo(2)
1. The Wolfson School: Electronic, Electrical and Systems Engineering. Loughborough University. United Kingdom
2. Universidad Carlos III de Madrid. Spain

Key words

Dynamic response, multi-terminal HVDC, MTDC, Voltage Source Converters.

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