Results 181 to 190 of about 2,596,360 (213)
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International Journal of Electrical Power & Energy Systems, 2019
This paper proposes a novel protection scheme for detection and classification of internal faults in bipolar HVDC transmission lines using the K-means data description (KMDD) method.
M. Farshad
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This paper proposes a novel protection scheme for detection and classification of internal faults in bipolar HVDC transmission lines using the K-means data description (KMDD) method.
M. Farshad
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The Development of HVDC Transmission System
2012 Third International Conference on Digital Manufacturing & Automation, 2012The ever increasing process of high-voltage high-power fully controlled semiconductor technology has promoted the flexible ac transmission systems ahead significantly. Developments advance both the HVDC power transmission and the flexible ac transmission system technologies.
Yang Zhou, Dao Zhuojiang, Yu Fenwang
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The limits of HVDC transmission
Energy Policy, 2013Abstract 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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Commutation failures in HVDC transmission systems
IEEE Transactions on Power Delivery, 1996This paper provides a formulation for the initiation or onset mechanism of commutation failures in line-commutated thyristor power converters, assuming infinite (zero impedance) AC systems. A theoretical development and a parametric analysis is given. Theory validation by simulation and comparison to actual field experience data is also given.
C.V. Thio, J.B. Davies, K.L. Kent
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Non-Contact Voltage Monitoring of HVDC Transmission Lines Based on Electromagnetic Fields
IEEE Sensors Journal, 2019The high-voltage direct current (HVDC) transmission network is envisioned to advance further as a supplement to AC transmission in a new era of renewable energy and smart grid development.
Ke Zhu, W. Lee, P. Pong
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Travelling wave directional pilot protection for hybrid HVDC transmission line
International Journal of Electrical Power & Energy Systems, 2019As known, hybrid high-voltage direct current (HVDC) is wide applied in power system. Because two converter stations are line commutated converter based HVDC (LCC-HVDC) type and voltage source converter based HVDC (VSC-HVDC) type respectively, the HVDC ...
Dong Wang +3 more
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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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The thyristor valve in HVDC transmission
IEEE Spectrum, 1973The 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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Comprehensive review of commutation failure in HVDC transmission systems
Electric power systems research, 2022Hongyu Zhou +5 more
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HVDC Transmission for Offshore Wind Farms
2014Large-scale wind energy expansion is limited by factors such as the land use and the visual impact of facilities on land. Offshore wind energy can overcome the above-mentioned limitations. In addition, wind velocity is higher and more constant offshore than onshore.
Raymundo Enrique Torres Olguin +2 more
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