Results 41 to 50 of about 10,715 (249)
Energy Reports, 2023 This paper presents a method to estimate the components of the PEM electrolyzer voltage with the dynamic input current. The total voltage can be divided into reversible voltage and irreversible voltage that the former always can be described as a ...
Kai Jing, Chang Liu
doaj +1 more source
The Journal of Engineering, 2019 In the hierarchically connected ultra-high voltage (UHV) DC projects, the minimum air clearance on the 1000 kV AC side of converter transformer directly affects the layout and area of the valve hall.
Lou Ying +3 more
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Energies, 2020 Harmonic overvoltage in electric railway traction networks can pose a serious threat to the safe and stable operation of the traction power supply system (TPSS).
Qiujiang Liu +4 more
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Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]
, 2018 Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A. +3 more
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Energies, 2022 High-speed EMUs (electric multiple-units) frequently pass through the phase-separation zone during operation. Overvoltage generated during the operation of the vehicle-mounted circuit breaker has a long duration and high waveform steepness, which ...
Jixing Sun +5 more
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Multi-functional anodes boost the transient power and durability of proton exchange membrane fuel cells. [PDF]
, 2020 Proton exchange membrane fuel cells have been regarded as the most promising candidate for fuel cell vehicles and tools. Their broader adaption, however, has been impeded by cost and lifetime.
Cai, Mei +14 more
core
Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]
, 2011 A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme +3 more
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THE RESONANT OVERVOLTAGE IN NON-SINUSOIDAL MODE OF MAIN ELECTRIC NETWORK
Electrical engineering & Electromechanics, 2018 Purpose. The resonant overvoltage arises in main electrical networks as a result of random coincidence of some parameters of circuit and its mode and it may exist for a relatively long time.
V. G. Kuznetsov +4 more
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Energy Science &Engineering, EarlyView.This study develops a time‐domain geoelectrical model of ground potential rise (GPR) in multilayer soil that couples electromagnetic field theory with nonlinear fault arc resistance. Finite‐element simulations calibrated against scaled fault‐injection experiments reproduce measured GPR and step/touch voltages within 4.7% error, revealing that steady ...
Wulfran Fendzi Mbasso +7 more
wiley +1 more source
Statistical Power Supply Dynamic Noise Prediction in Hierarchical Power Grid and Package Networks [PDF]
, 2008 One of the most crucial high performance systems-on-chip design challenge is to front their power supply noise sufferance due to high frequencies, huge number of functional blocks and technology scaling down.
Casu +10 more
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