Results 181 to 190 of about 6,910 (228)

The thyristor valve in HVDC transmission

IEEE Spectrum, 1973
The application of thyristor valves rather than mercury-arc valves for rectification in high-voltage dc transmission systems has increased. Schemes in service include Eel River in New Brunswick, Canada, the Gotland extension in Sweden, and the Sakuma extension in Japan.
G. Karady, T. Gilsig
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HVDC transmission for large offshore wind farms

Power Engineering Journal, 2002
Onshore and offshore wind farms are a rapidly growing worldwide industry. The development of larger, more efficient turbines is opening up new frontiers in wind energy generation in the form of large offshore wind farms. The use of high-voltage direct current (HVDC) technology can fully realise the potential of these developments, overcoming the major ...
Kirby, N., Xu, L., Lucket, M., Siepmann, W.   +3 more
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Synchronverter based HVDC transmission

2017 Innovations in Power and Advanced Computing Technologies (i-PACT), 2017
This is an innovative control strategy for the High Voltage Direct Current (HVDC) transmission based on synchronverter technology. The control of sending end rectifier mimics a synchronous motor(SM) and the receiving end inverter controls acts as a synchronous generator (SG).
Elizabeth Rajan, S Amrutha
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Telecommunications for HVDC Transmission

IEEE Transactions on Power Apparatus and Systems, 1968
The control and operational principles of HVDC transmission are briefly reviewed. Basically no telecommunication is necessary for operation, with the exception of telephone connections. As the demand for service and system control increases, telecommunication requirements will grow. General requirements of telecommunications are summarized and specific
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HVDC Transmission: A Path to the Future?

The Electricity Journal, 2010
Direct current transmission has been the poor stepchild of the U.S. electric industry. Although early-generation plants were based on DC technology, it was soon deemed uneconomical to transmit electricity over long distances, but it now appears poised for a change.
Stephen L. Teichler, Ilia Levitine
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HVDC transmission overview

2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008
High voltage direct current (HVDC) technology has characteristics which make it especially attractive in certain transmission applications. The number of HVDC projects committed or under consideration globally has increased in recent years reflecting a renewed interest in this field proven technology.
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The limits of HVDC transmission

Energy Policy, 2013
Abstract Renewable energy is abundant, but not necessarily near the urban centers where it will be used. Therefore, it must be transported; and this transport entails a systemic energy penalty. In this paper simple qualitative calculations are introduced to show (i) that high-voltage direct-current (HVDC) power lines for megameter and greater ...
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HVDC transmission: yesterday and today

IEEE Power and Energy Magazine, 2007
Basically, this paper takes a brief look at the history of HVDC to better understand its upcoming future. It also portrays some of the early developments in modern high-voltage direct current (HVDC) transmission. Today there are 16 DC links operating or under construction in the United States and 21 in North America.
Willis Long, Stig Nilsson
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HVDC transmission technology for sustainable power supply

International Multi-Conference on Systems, Sygnals & Devices, 2012
The necessity to limit CO 2 emissions as well as the renunciation of nuclear power in many countries are the chief factors that determine the future development of electric power generation. These requirements can be met by integrating renewable energy sources, such as offshore wind farms and solar power from North Africa.
Jörg Dorn, H. Gambach, Dietmar Retzmann
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Electromagnetic simulation of HVDC transmission

2020
Electromagnetic simulation is an effective approach to study the dynamic behaviors of high-voltage direct current (HVDC) transmission system. Transient characteristics of HVDC transmission system can be described with a set of differential equations, which are time varying and nonlinear. To include the distributed parameter effects of HVDC transmission
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