Design considerations for primary control in multi-terminal VSC-HVDC grids

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.contributor	Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable
dc.contributor.author	Gavriluta, Catalin
dc.contributor.author	Candela García, José Ignacio
dc.contributor.author	Citro, Costantino
dc.contributor.author	Luna Alloza, Álvaro
dc.contributor.author	Rodríguez Cortés, Pedro
dc.date	2015-05-01
dc.identifier.citation	Gavriluta, C. [et al.]. Design considerations for primary control in multi-terminal VSC-HVDC grids. "Electric power systems research", 01 Maig 2015, vol. 122, p. 33-41.
dc.identifier.citation	0378-7796
dc.identifier.citation	10.1016/j.epsr.2014.12.020
dc.identifier.uri	http://hdl.handle.net/2117/27760
dc.description.abstract	Multi-terminal dc networks based on voltage source converters (VSC) are the latest trend in dc-systems; the interest in the area is being fueled by the increased feasibility of these systems for the large scale integration of remote offshore wind resources. Despite the active research effort in the field, at the moment, issues related to the operation and control of these networks, as well as sizing, are still uncertain. This paper intends to make a contribution in this field by analyzing the sizing of droop control for VSC together with the output capacitors. Analytical formulas are developed for estimating the voltage peaks during transients, and then it is shown how these values can be used to dimension the dc-bus capacitor of each VSC. Further on, an improved droop control strategy that attenuates the voltage oscillations during transients is proposed. The proposed methods are validated on the dc-grid benchmark proposed by the CIGRE B4 working group. Starting from the structure of the network and the power rating of the converters at each terminal, the output capacitors and the primary control layer are designed together in order to ensure acceptable voltage transients.(C) 2014 Elsevier B.V. All rights reserved.
dc.description.abstract	Peer Reviewed
dc.language.iso	eng
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l’energia elèctrica
dc.subject	Àrees temàtiques de la UPC::Energies::Energia eòlica
dc.subject	Electric power distribution
dc.subject	Electric current converters
dc.subject	Multi-terminal HVDC
dc.subject	Droop control
dc.subject	Oscillation damping
dc.subject	Capacitor size
dc.subject	Hierarchical control
dc.subject	Primary control design
dc.subject	OFFSHORE WIND FARMS
dc.subject	VOLTAGE CONTROL
dc.subject	POWER-SYSTEM
dc.subject	CONTROL STRATEGY
dc.subject	TRANSMISSION-SYSTEMS
dc.subject	LOSS MINIMIZATION
dc.subject	DROOP CONTROL
dc.subject	NETWORKS
dc.subject	ENERGY
dc.subject	MODELS
dc.subject	Energia elèctrica -- Distribució
dc.subject	Convertidors de corrent elèctric
dc.title	Design considerations for primary control in multi-terminal VSC-HVDC grids
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article

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