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Multiterminal HVDC Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A1: Smart Grids and Microgrids".

Deadline for manuscript submissions: closed (30 April 2021) | Viewed by 2333

Special Issue Editor


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Guest Editor
Department of Electrical Engineering, Tampere University, FI-33014 Tampere, Finland
Interests: electrical power engineering; renewable energy technologies; energy conversion; power systems analysis; power systems simulation; MATLAB simulation; power generation; distributed generation; power converters; power systems modelling

Special Issue Information

Dear Colleagues,

The Guest Editor is inviting submissions to a Special Issue of Energies on the subject area of “Multiterminal HVDC Systems”.

HVDC transmission technology has taken a quantum leap in its development, particularly, since the adoption of voltage source converters, at the turn of the millennium. The number of installations around the world are increasing rapidly, and its areas of applicability have multiplied. Nevertheless, for HVDC technology to move into a higher gear, it should offer the multiterminal HVDC option. This has been a fertile area of research worldwide for the past 10 years, and a three-terminal installation exists in China. Nonetheless, plenty of engineering and technology development is still required before multiterminal VSC–HVDC becomes a global reality.

The objective of this Special Issue is to bring together a compact number of high-quality publications, which is the repository of global experiences in multiterminal HVDC technology, whilst setting future research directives and highlighting the challenges that may lie ahead.

Topics of interest for publication include but are not limited to:

  • Modeling and simulation of MT–HVDC systems in connection with wind power, solar power, and wave power.
  • Advances in the development of DC protection equipment.
  • Description of new applications of MT–HVDC in low-voltage power distribution.
  • Experience of planning and operational practices and commissioning of MT–HVDC installations.

Prof. Dr. Acha-Daza Enrique
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • MT–HVDC systems
  • Multilevel power converters
  • Offshore wind power
  • Solar PV power
  • Marine power
  • Low-voltage distribution systems

Published Papers (1 paper)

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Research

22 pages, 2672 KiB  
Article
Multiterminal HVDC System with Power Quality Enhancement
by Pedro Roncero-Sánchez, Alfonso Parreño Torres, Javier Vázquez, Francisco Javier López-Alcolea, Emilio J. Molina-Martínez and Felix Garcia-Torres
Energies 2021, 14(5), 1306; https://doi.org/10.3390/en14051306 - 27 Feb 2021
Cited by 3 | Viewed by 1819
Abstract
High-Voltage Direct Current (HVDC) systems are a feasible solution that allows the transmission of energy between several power networks. As a consequence of the use of HVDC systems, renewable energy sources can be integrated more easily into distribution grids and smart grids. Furthermore, [...] Read more.
High-Voltage Direct Current (HVDC) systems are a feasible solution that allows the transmission of energy between several power networks. As a consequence of the use of HVDC systems, renewable energy sources can be integrated more easily into distribution grids and smart grids. Furthermore, HVDC systems can contribute to improving the power quality (PQ) of the grids to which they are connected. This paper presents a multiterminal HVDC system that not only controls the flows of active power between four different networks, but also compensates imbalances and harmonics in the grid currents to maintain balanced and sinusoidal voltages at the point of common coupling of the various grids. The compensation is carried out by the voltage-source converters (VSCs) connected to their respective AC grids. A control scheme based on the use of resonant regulators and proportional–integral (PI) controllers is responsible for of achieving the necessary power flow control with the amelioration of the PQ. A case study of a multiterminal HVDC system that comprises four terminals sharing a DC bus of 80 kV is simulated by means of PSCADTM/EMTDCTM (Power System Computer-Aided Design; Electromagnetic Transients including Direct Current), where the AC grids associated with the terminals suffer from voltage imbalances and voltage harmonics owing to the connection of unbalanced loads and nonlinear loads. The obtained simulation results show the performance of the complete system in terms of active power flow, voltage regulation, and harmonic distortions of the grid current and the grid voltage. Full article
(This article belongs to the Special Issue Multiterminal HVDC Systems)
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