Results 191 to 200 of about 2,067 (225)
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Test Line Experience with HVDC Overhead Transmission
IEEE Transactions on Power Apparatus and Systems, 1970Tests were conducted on a high-voltage overhead direct-current test line. Values of radio interference and corona loss were established for certain conductor configurations and pole spacings. Relations between radio interference and corona loss and some weather variables were evaluated.
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The simulation study on line protection of HVDC transmission system
2017 2nd International Conference on Power and Renewable Energy (ICPRE), 2017This paper introduces the causes of line fault and expounds traveling wave protection and the criterion of protection action. Then establishes the simulation model of HVDC transmission system based on PSCAD/EMTDC, by which the line fault under different transition resistance and fault distance are simulated.
Huidong Guo +3 more
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A Novel Fault-Location Method for HVDC Transmission Lines
IEEE Transactions on Power Delivery, 2010This paper presents a method for locating faults on HVDC transmission lines using two terminal data. Different from those based on the traveling wave principle, the new fault-location algorithm can use any section of the postfault data to locate faults.
Jiale Suonan +4 more
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Adaptive Reclosing Method for Flexible HVDC Transmission Lines
2020 4th International Conference on HVDC (HVDC), 2020With the development of HVDC transmission, half-bridge modular multilevel converter with hybrid HVDC circuit breakers becomes one of the mainstream configuration schemes in HVDC flexible system. However, the existing reclosing strategies have some defects, such as lack of selectivity and adoption of long time delay, due to the inability to determine ...
Mengxi Wang +2 more
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A Novel Fault Location Method for HVDC Transmission Lines
2019 IEEE PES GTD Grand International Conference and Exposition Asia (GTD Asia), 2019Considering the frequency-dependent characteristics of line parameters, a novel fault location method for high voltage direct current (HVDC) transmission lines is proposed in this paper. It is of great significance to accurately establish transmission line model.
Liming Yang +5 more
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Degree of corona saturation for HVDC transmission lines
IEEE Transactions on Power Delivery, 1990The DC electric field and ion density are two of the electrical quantities of interest that characterize the electrical environment of HVDC (high-voltage direct-current) transmission lines. The author presents an overview of the electric field and ion environment of HVDC transmission lines and introduces the concept of degree of corona saturation.
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Electromagnetic interference due to HVDC transmission line faults
2012 China International Conference on Electricity Distribution, 2012This paper presents a study of electromagnetic interference to pipelines due tonearby 500 kV HVDC transmission line faults.While there is a large volume of publications addressing the issues of alternating EMI issues, the authors are not aware of publicly available publications addressing the issues of inductive interference from HVDC lines under fault
Yixin Yang +3 more
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Fault transient simulation analysis for HVDC transmission lines
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2015Fault transient analysis plays an important role in protection and fault location research for high voltage direct current (HVDC) transmission lines. Fault transient simulation methods and analysis for HVDC transmission lines are detailed presented in this paper, to avoid repetitive tasks and waste of research efforts. Influences of the control system,
Luhua Xing +4 more
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Machine Learning Based Fault Diagnosis in HVDC Transmission Lines
2019HVDC transmission system has been becoming an alternating approach to AC transmission because of its stability and effective controlling. Due to revolution in the field of power electronics, it is expected that HVDC transmission system will play a vital role in power transferring in power systems which are becoming more and more complex with the ...
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Corona Noise of HVDC Transmission Line
Eleventh International Wroclaw Symposium and Exhibition on Electromagnetic Compatibility, 1992Yoshitaka Sunaga +2 more
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