Results 11 to 20 of about 82,834 (266)
Effect of grounding grid of power transmission line on buried pipeline under short circuit fault
You-qi chuyun, 2021 In order to study the electromagnetic interference of the short-circuit current of grounding point when power transmission line is in fault operation, a model for grounding grid of transmission line towers and buried pipelines was established with the ...
Shaojie WANG +4 more
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Protection Method Based on Wavelet Entropy for MMC-HVDC Overhead Transmission Lines
Energies, 2021 Recent technological developments in modular multilevel converter-based high-voltage direct current (MMC-HVDC) transmission systems have shown significant advantages over the traditional HVDC and two-level voltage source converter (VSC) transmission ...
Weibo Huang +5 more
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IET Generation, Transmission & Distribution, 2022 This paper suggests a new control algorithm for On‐Load Tap Changer (OLTC) of wind farm main transformer that is responsible for voltage regulation of collector network.
Bakhtyar Hoseinzadeh, Frede Blaabjerg
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Research on Selection and Protection Strategy of Voltage-Limiting Resistor in Traction Converters
机车电传动, 2021 The basic principle of over voltage suppression for voltage-limiting chopper circuit of traction converters was introduced in details, and the selection criteria of voltage-limiting resistor was provided. Newton's law of cooling was derived to obtain the
Jilei GAO +5 more
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Design of novel intrinsically safe power supply with 'ia' grade
Gong-kuang zidonghua, 2017 According to working condition of mine-used power supply in coal mine underground, novel intrinsically safe power supply with 'ia' grade was designed. The power supply uses a fully enclosed AC-DC module to eliminate special flameproof enclosure, and has ...
YU Zhixue, FANG Xupeng, ZHAO Yang
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Applied Sciences, 2019 The permanent magnet (PM) brushless DC (BLDC) machine has been widely used in various applications due to its high reliability and simplicity. In aerospace applications, the requirements of its dynamic acceleration characteristic and fault protection ...
Wei Wang, Jingwen Wang
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Over-Voltage Protection for Pico-Hydro Generation Using PV Microinverters
, 2020 Innovative, low-cost, environmentally friendly and renewable resource-based solutions are emerging to meet growing global energy demand. Hydroelectric technology is quite old and mature. Despite its importance, it is associated with large plants, with environmental impact. On contrary, small-scale systems, called pico-hydro systems (up to 5 kW) are not
Isabella Cristina Scotta +3 more
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Design of a new type of integrated test bench for mine-used high-voltage protector
Gong-kuang zidonghua, 2016 A new type of integrated test bench for mine-used high-voltage protector was designed. The overall structure and design schemes of software and hardware of the test bench were introduced.
HUANG Hesong +3 more
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Analysis and RTDS Simulation on Suppression Methods for TV Fuses Frequently Blown
Zhongguo dianli, 2020 Potential transformer (TV) is an important equipment for measurement and protection in distribution network. The high voltage side of TV is usually equipped with fuse for protection, but abnormal fuse blown often occurs, affecting the safety of power ...
Yuan GUI +5 more
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Probability risk assessment of island operation event for large scale photovoltaic plant
Automatika, 2019 Original methodology for the calculation of island operation event occurrence possibility is proposed for the photovoltaic power plants connected to medium voltage grid.
Mihovil Ivas +3 more
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