Results 11 to 20 of about 3,794 (179)
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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Open Physics, 2020 In order to solve the problem that the long cable variable voltage and variable frequency (VVVF) system does not adopt an effective capacitor voltage sharing control method, resulting in a poor effect of resonance overvoltage control, the resonance ...
Deng Yonghong, Zhang Quanzhu
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Overvoltage Simulation Analysis and Suppression of Breaking in a 35 kV Shunt Reactor
EnergiesWhen a 35 kV distribution network has the problem of insufficient reactive power, the input of a shunt reactor is a common compensation method. Vacuum circuit breakers are widely used in 35 kV distribution networks because of their superior arc ...
Jing Chen +4 more
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Applied SciencesIn the variable frequency motor drive system, because the cable impedance does not match the motor impedance, the reflection wave of the voltage wave will be generated.
Shifu Zhang +5 more
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Overvoltage Protection for High Frequency High Voltage Power Transformers
Eletrônica de Potência, 2019 Transformers with high-voltage operation may have undesired behavior due to the effects of their parasitic elements. In power electronics applications, if the primary voltage has harmonics, transformer resonances may be excited, causing high primary ...
Diego Teruo Mendes de Souza +2 more
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Study of Power Frequency Overvoltage Suppression on UHV Transmission Line
Kongzhi Yu Xinxi Jishu, 2014 It mainly studied the improvement measures of overvoltage level for UHV transmission line from Jindongnan to Jingmen. It analyzed single-phase grounding load shedding overvoltage and fault-free load shedding overvoltage in the case of the single ...
HAN Mengmeng +3 more
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EnergiesVirtual synchronous generator (VSG) control, which can provide inertia output, damp power oscillations, and offer frequency and voltage support to power grids, has become a growing trend in the control field of wind power generation. As a new technology,
Shuyi Wang +5 more
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Study on the Influence of Grounding Resistance on Cable Fault Overvoltage
EnergiesThe cable grounding connecting method and grounding resistance have a significant influence on the cable fault overvoltage. This paper considers a 500 kV long cable project in Beijing as the research object; a model was implemented in ATP-EMTP, and ...
Baotong Song +4 more
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Protection of Solar Power Generation System from Lightning Induced Overvoltage
, 2023 Due to crisis in natural resources and ecological issues, many countries are moving on the road to renewable energy sources. Solar power is the most potential source of renewable energies.
Hossain, MA, Ahmed, MR, Karim, MR
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Zhongguo dianli, 2021 China's primary energy production bases and load centers are inversely distributed and the renewable energy of the production base cluster is delivered through UHVDC cluster, so the coupling characteristics of wind power and DC are complex in the power ...
Zhaohui QIE +4 more
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