Results 31 to 40 of about 786,447 (315)
Energies, 2016 Voltage source converter (VSC)-based high voltage direct current (VSC-HVDC) interconnectors can realize accurate and fast control of power transmission among AC networks, and provide emergency power support for AC networks. VSC-HVDC interconnectors bring
Shimin Xue +6 more
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Energies, 2018 Protection for transmission lines is one of crucial problems that urgently to be solved in constructing the future high-voltage and large-capacity voltage-sourced converter based high voltage direct current (VSC-HVDC) systems.
Xiangyu Pei +2 more
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Driving automation: Learning from aviation about design philosophies [PDF]
, 2007 Full vehicle automation is predicted to be on British roads by 2030 (Walker et al., 2001). However, experience in aviation gives us some cause for concern for the 'drive-by-wire' car (Stanton and Marsden, 1996). Two different philosophies have emerged in
Harris, D, Stanton, NA, Young, MS
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Effective time of a diffusion source in a pack cementation process on the AZ91D magnesium alloy
Journal of Materials Research and Technology, 2023 The powder thermal diffusion alloying method is an important method to fabricate intermetallic coatings on magnesium alloy substrates. The diffusion source, the diffusion time and the diffusion temperature are key parameters for a diffusion alloying ...
Dongzhu Lu +5 more
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Waveform Similarity-Based Robust Pilot Protection for Transmission Lines [PDF]
IEEE Transactions on Power Delivery, 2022 This paper proposes a robust pilot protection scheme based on waveform similarity that restricts the influence of outliers in fault line identification. By comparing two refactoring currents constructed using the time-domain sampling values of currents at the two terminals of a transmission line, a waveform similarity algorithm called the Kendall's Tau
Guangxiao Zhang +3 more
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The step project:societal and political engagement of young people in environmental issues [PDF]
, 2017 Decisions on environmental topics taken today are going to have long-term consequences that will affect future generations. Young people will have to live with the consequences of these decisions and undertake special responsibilities.
Apostolidis, Lazaros +10 more
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Applied SciencesWhen faults occur in transmission lines of grid-forming PV systems, the LVRT control and virtual impedance function cause the fault characteristics of grid-forming inverters to differ significantly from those of synchronous generators, which deteriorates
Kuan Li, Qiang Huang, Rongqi Fan
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Journal of Materials Research and Technology, 2023 In-situ crevice corrosion images of U75V high-speed rail steel samples before and after heat treatment for microstructure refinement were obtained by a self-developed monitoring device, and facile image processing techniques have been developed.
Jian Wang +5 more
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Biweight Midcorrelation Based Transmission Line Pilot Protection Algorithm
IEEE Open Access Journal of Power and EnergyThis paper presents a novel pilot protection algorithm for alternating current (ac) transmission lines that relies on biweight midcorrelation (BWMC) coefficients between the terminals’ currents.
Rodrigo Rozenblit Tiferes +3 more
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Crevice corrosion of U75V high-speed rail steel with varying crevice gap size by in-situ monitoring
Journal of Materials Research and Technology, 2022 Crevice corrosion of high-speed rail steel U75V was studied with varying gap size by using self-designed device. Increasing gap size inhibited exterior cathodic reduction reaction of oxygen, inducing decrease of potential difference between interior and ...
Weichen Xu +6 more
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