Results 11 to 20 of about 326,663 (289)
High Voltage Coil Current Sensor for DC-DC Converters Employing DDCC [PDF]
, 2015 Current sensor is an integral part of every switching converter. It is used for over-current protection, regulation and in case of multiphase converters for balancing.
Drinovsky, M., Hospodka, J.
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Frontiers in Energy Research, 2022 In a grid-connected solar photovoltaic system, voltage dips on the grid side, increased grid current, and overshoot in the inverter’s dc-link voltage are all noticed during grid disturbances. The grid code stipulates that in order to protect the cascaded
C. Nithya, J. Preetha Roselyn
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Simulation and research on over-voltage suppression for high voltage transmission line
The Journal of Engineering, 2019 For different types of fault in transmission line, the generation mechanism of tripping and closing over-voltage is analysed. To built the double power supply system of high-voltage transmission line simulation model by PSCAD/EMTDC, finally, for the ...
Qi Yao, Chuan Su, Yi Ji
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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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All-optical differential current detection technique for unit protection applications [PDF]
, 2013 In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz +3 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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Electrical appliances protection using auto cut under voltage and over voltage tripping mechanism [PDF]
, 2020 Power quality is a term that refers to maintaining the near sinusoidal waveform of power distribution bus voltages and current at rated magnitude and frequency.
Abu Bakar, Nur Hijrah +2 more
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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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