Results 191 to 200 of about 6,910 (228)
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Telephone interference criteria for HVDC transmission lines
IEEE Transactions on Power Delivery, 1989The telephone interference caused by a transmission line is primarily characterized by the equivalent line disturbance current defined as: le=?n (Cn · In)2 where Cn = C-message weighting factor for the n:th harmonic ln = residual line current of n:th harmonic For many HVdc lines, particularly in North America, this current has been required to be < 270
Arne V. Johansson, Ake Ekstrom
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Digital dynamic simulation of HVDC transmission systems
Proceedings of MELECON '94. Mediterranean Electrotechnical Conference, 2002The planning, design and operation of HVDC transmission systems requires the detailed study of various options and prediction of the system performance. HVDC transmission systems described by nonlinear models are not tractable for analytical approaches. Here, the tableau approach is the method that is used for the analysis of HVDC transmission systems.
Gurunlu, C., DİNÇER, HASAN
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HVDC Transmission and FACTS Fundamentals
Large scale installations of inverter based renewable generation in remote locations has increase interest in the application of HVDC transmission and flexible ac transmission systems (FACTS) devices, possibly with energy storage. Schemes have been proposed or implemented for applications ranging from bulk power transfer, transmission support for off ...Daqing Hou +4 more
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Control and Protective System of HVDC Transmission by HVDC Simulator (Thyristor Converter)
IEEE Transactions on Power Apparatus and Systems, 1971Worldwide research and development of the high-voltage thy- ristor converter has been actively promoted recently. In order to apply the thyristor converter to a present-day power system, it is necessary to develop a control and protective system suitable for the system and to study an operating ability when troubles develop in the converter and power ...
T. Machida +4 more
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An evaluation of the HVDC and HVAC transmission economic
2012 Sixth IEEE/PES Transmission and Distribution: Latin America Conference and Exposition (T&D-LA), 2012Different configurations and transmission technologies regarding the geographic distances and the expansion of the electrical system in large countries can be proposed. These technologies must meet the technical criteria considering the minimal cost. The minimal cost solution aims at bringing low tariffs to the final consumer.
T. Sousa +4 more
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HVDC transmission - opportunities and challenges
8th IEE International Conference on AC and DC Power Transmission (ACDC 2006), 2006HVDC transmission has a number of technical advantages compared with HVAC transmission, which have been highlighted in many papers. However, HVDC transmission has remained a niche technology, being used only for long distance overhead transmission, submarine cable and frequency conversion.
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Recent advancements in HVDC transmission
2017104 REE N°1/2017 LE DEVELOPPEMENT DES LIAISONS A COURANT-CONTINU (HVDC) DOSSIER 2 Introduction HVDC is a technology of choice for transmitting power efficiently and reliably over long distances. It is ideally suited for integrating renewable energy sources situated in remote and challen- ging locations.
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800-kV HVDC transmission systems
2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008The panelist will discuss the recent developments responsible for the planning, design and implementation of plusmn 800 kV HVDC transmission systems. The focus of the presentation will be overhead HVDC transmission lines. Following a brief review of the research and testing that has been carried out so far for the electrical design of HVDC lines, the ...
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