Interaction between the voltage-droop and the frequency-droop control for multi-terminal HVDC systems

Samy Akkari 1 Jing Dai 1 Marc Petit 1 Xavier Guillaud 2
1 GeePs - Laboratoire Génie électrique et électronique de Paris
2 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - EA 2697
Abstract : Multi-terminal DC systems must provide a high level of reliability and may have to support the interconnected AC grids. This can be achieved by providing AC/DC converters with a dual controller combining both the voltage-droop and the frequency-droop control techniques. In this article, the coupling between those droops is theoretically investigated and quantified, and a proposed corrected value of the frequency-droop parameter allows the system to comply with the TSO's requirements with regards to the frequency support of the AC grids despite the unintended interaction of the two droops. A dynamic frequency-droop parameter is then proposed to also cope with the controller limits. Finally, an electromagnetic transient study of a five-terminal HVDC grid is performed to validate the theoretical results.
Keywords : power system interconnection frequency control AC-DC power convertors power grids voltage control HVDC power transmission
Type de document :
Article dans une revue
IET Generation, Transmission and Distribution, Institution of Engineering and Technology, 2016, 10 (6), pp. 1345 - 1352. 〈10.1049/iet-gtd.2015.0814〉
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01423715
Contributeur : Jing Dai <>
Soumis le : samedi 31 décembre 2016 - 09:34:30
Dernière modification le : mercredi 25 avril 2018 - 14:28:01

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CENTRALESUPELEC | UPMC | GEEPS | ECO2 | UNIV-PARIS-SACLAY

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Samy Akkari, Jing Dai, Marc Petit, Xavier Guillaud. Interaction between the voltage-droop and the frequency-droop control for multi-terminal HVDC systems. IET Generation, Transmission and Distribution, Institution of Engineering and Technology, 2016, 10 (6), pp. 1345 - 1352. 〈10.1049/iet-gtd.2015.0814〉. 〈hal-01423715〉

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