Results 11 to 20 of about 577 (206)
Performance Evaluation and Limitations of Overvoltage Suppression Circuits for Low- and Medium-Voltage DC Solid-State Breakers [PDF]
IEEE Open Journal of Power Electronics, 2021 This paper presents a design and performance evaluation of three different overvoltage suppression circuits employed in a solid-state circuit breaker for medium- to high-power and low- to medium-voltage DC grids.
Andreas Giannakis, Dimosthenis Peftitsis
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The phenomenon and suppression strategy of overvoltage caused by PV power reverse flow [PDF]
Frontiers in Energy ResearchIn the current distribution network’s energy structure, photovoltaic (PV) occupies a high proportion. However, the access of a high proportion of PV will lead to the phenomenon of reverse power flow in the distribution network, and then the problem of ...
Yumeng Xie +6 more
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Analysis of suppression switching overvoltage for CRAFT power supply
Energy Reports, 2022 In order to solve the problem of switching overvoltage for CRAFT, an optimal design is put forward to suppress overvoltage, which aims to enable the converter thyristor work normal.
Yalong Yang +4 more
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Mechanism and suppression of breaking overvoltage of DC circuit breakers
High VoltageThe occurrence of breaking overvoltage in a DC circuit breaker (DCCB) poses a potential threat to the safe operation of a DC grid. Based on the structure of the ±10 kV three‐terminal DC distribution network, this paper sets up the medium‐voltage DCCB and
Lu Qu +7 more
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Overvoltage suppression method for DC microgrid under inter-pole short-circuit fault [PDF]
AIP AdvancesAiming at the problems that the existing methods do not fully consider the influence of fault states and have poor overvoltage suppression effects and irregular voltage waveforms, an overvoltage suppression method for DC microgrids under inter-electrode ...
Xiaobin Cai +3 more
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Novel method for restraining 35 kV shunt reactor switching overvoltage – phase controlled breaker
The Journal of Engineering, 2019 Phenomena such as current chopping, arc reignition and equivalent current chopping might appear when cutting off shunt reactor. Overvoltage caused by switching will lead to interphase fault in related equipment and inter-turn insulation damage in the ...
Yiming Zheng +5 more
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Energies, 2023 The high amplitude and steep overvoltage generated by the breaking of the vacuum circuit breaker in the wind farm damages the inter-turn insulation of the transformer.
Ziheng Pu +4 more
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IEEE Open Journal of Power Electronics, 2023 This article proposes an improved overvoltage suppression method for the initial charge of the dc capacitor in voltage source power converters. The proposed method makes multiple short-circuits in each leg, utilizing power devices in the converter. These
Tomoyuki Mannen, Keiji Wada
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The Journal of Engineering, 2018 Overvoltage caused by faults or switching is one of the decisive factors affecting the insulation level of equipment in UHVDC transmission systems.
Xiaoguang Zhu +6 more
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电力工程技术Line commutated converter based high voltage direct current (LCC-HVDC) is the key to large-scale grid connection and long-distance transmission of renewable energy. However, faults such as DC blocking and commutation failure may lead to short-term excess
SHANG Lei +5 more
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