Publication

Interactions Between Bandwidth Limited CPLs and MMC Based MVDC Supply

Drazen Dujic, Francisco Daniel Freijedo Fernández, Alexandre François Christe, Uzair Javaid
2017
Conference Papers

Résumé

With the improvement in the power electronic technologies, medium voltage dc (MVDC) electrical distribution systems are being considered for on-shore and off-shore applications. These future MVDC electrical distribution systems are expected to provide the possibility of easy interfacing of the renewable energy sources, improving the dynamics of the system and also help in reducing the carbon footprint of energy sources. Modular multilevel converters (MMCs) are used in high voltage dc (HVDC) applications and are being considered for MVDC applications as well. In this paper, we present an MVDC electrical distribution system where the source converter is an MMC and the loads exhibit bandwidth limited constant power load (CPL) behaviour. An analysis is carried out on the dynamic interactions between the MMC source converter and CPLs, considering varying distribution cable lengths between the source and the load, the filtering effort at the load end and different loading conditions.

Source officielle

https://infoscience.epfl.ch/entities/publication/9dc4bd5f-9d6b-4c96-8ea8-f0bf160f9371

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Drazen Dujic, Francisco Daniel Freijedo Fernández, Alexandre François Christe, Uzair Javaid
2017
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/9dc4bd5f-9d6b-4c96-8ea8-f0bf160f9371

À propos de ce résultat

Concepts associés (27)

Courant continu haute tension

thumb|upright=1.5|Convertisseurs à thyristors sur le pôle 2 de la ligne Inter-Island en Nouvelle-Zélande.thumb|upright=1.5|Symbole d'un convertisseur AC/DC. Le courant continu haute tension (CCHT), en anglais High Voltage Direct Current (HVDC), est une technologie d'électronique de puissance utilisée pour le transport de l'électricité en courant continu haute tension. Son utilisation est minoritaire par rapport au transport électrique à courant alternatif (AC) traditionnel de nos réseaux électriques.

Énergie renouvelable

Les énergies renouvelables (parfois abrégées EnR) proviennent de sources d'énergie dont le renouvellement naturel est assez rapide pour qu'elles puissent être considérées comme inépuisables à l'échelle du temps humain. Elles proviennent de phénomènes naturels cycliques ou constants induits par les astres : le Soleil essentiellement pour la chaleur et la lumière qu'il produit, mais aussi l'attraction de la Lune (marées) et la chaleur engendrée par la Terre (géothermie).

Variable renewable energy

Variable renewable energy (VRE) or intermittent renewable energy sources (IRES) are renewable energy sources that are not dispatchable due to their fluctuating nature, such as wind power and solar power, as opposed to controllable renewable energy sources, such as dammed hydroelectricity or biomass, or relatively constant sources, such as geothermal power. The use of small amounts of intermittent power has little effect on grid operations. Using larger amounts of intermittent power may require upgrades or even a redesign of the grid infrastructure.

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