IEEE Transactions on Power Delivery Joint Special Section on Hybrid AC/DC Transmission Grids

The papers in this special section are intended to promote research, innovation and exchange in the broad field of hybrid AC/DC transmission grids. In this special section, we invited submission of original research and/or review works from both power delivery and power system perspectives. HVDC tec...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2020-12, Vol.35 (6), p.2747-2749
Main Author: El Moursi, Mohamed Shawky
Format: Article
Language:English
Subjects:
AC machines
Converters
HVDC transmission
Hyvrid power systems
Power grids
Power system dynamics
Power transmission
Special issues and sections
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Summary:The papers in this special section are intended to promote research, innovation and exchange in the broad field of hybrid AC/DC transmission grids. In this special section, we invited submission of original research and/or review works from both power delivery and power system perspectives. HVDC technology has brought many advantages to power transmission. Examples are increased flexibility in operation, expanded power transfer capability and easier interconnection of energy sources. However, HVDC links need to be built along existing AC transmission grids. It has become increasingly evident that the future power transmission systems will become interwoven networks of AC and DC subsystems, i.e., hybrid AC/DC transmission grids. The AC and DC grids have their own characteristics. An AC grid tends to have a large inertia and well-understood responses to disturbances. A DC grid generally has a low tolerance to fault and can respond very fast. When the two grids are interconnected, substantially more complex dynamic and transient interactions can occur. A single AC system fault, for example, may lead to simultaneous commutation failures in multiple converter stations. New phenomena, such as super-synchronous resonance, can also emerge whose mechanisms have not been fully understood. All these characteristics present new challenges to the planning, design and operation of future power transmission systems.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2020.3038226