Results 21 to 30 of about 1,562 (203)
Lightning Overvoltage Response Modeling and Protection Design for Solid State Transformer
IEEE AccessThe rapid development of the AI and ICT industry has driven massive data center construction. Compared to conventional LFT (line-frequency transformer)-isolated conversion system, SST-based uninterruptible power supply solution offers high efficiency ...
Jiatong Zhang +4 more
doaj +2 more sources
Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker
Chengshi guidao jiaotong yanjiuObjective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section.
ZHANG Mingrui +2 more
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CAAI Transactions on Intelligence Technology, EarlyView., 2023 Abstract The Internet of Things is emerging as a crucial technology in aiding humans and making their lives easier. Among the human population, a large percentage of people suffer from disabilities resulting in challenges in everyday life particularly people with visual disabilities.
Hania Tarik +8 more
wiley +1 more source
Overvoltage Robustness of p-Gate GaN HEMTs in High Frequency Switching up to Megahertz
, 2023 This article investigates the ruggedness of the GaN high electron mobility transistor (HEMT), a power device without avalanche capability, in continuous, high-frequency, overvoltage switching.
Li, Qiang +7 more
core +1 more source
Setup for measuring and simulating high-frequency overvoltages of power transformer
2019 2nd International Colloquium on Smart Grid Metrology (SMAGRIMET), 2019 During their operation, power transformers are stressed by switching and lightning overvoltages. Transformers that are extensively exposed to these stresses are usually equipped with transformer monitoring system which enables assessing the transformer’s condition at any given time.
Jurišić, Bruno +3 more
openaire +3 more sources
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
doaj +1 more source
, 2022 Surge-energy and overvoltage ruggedness of power devices are desired in many power applications. For the GaN high-electron-mobility transistor (HEMT), a device without avalanche capability, its surge-energy and overvoltage ruggedness are both determined ...
Li, Qiang +3 more
core +1 more source
Research on motor overvoltage issues in metallurgical environments using three-level inverters
MetalurgijaIndustries such as nuclear power plants and underground mining are characterized by space constraints,forcing the use of long-wire cables to power motors.The impedance mismatch between long-wire cables and motors leads to overvoltage phenomena at motor ...
L. L. Meng, W. Dai
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Experimental High-Frequency Parameter Identification of AC Electrical Motors [PDF]
, 2007 In order to predict conducted electromagnetic interference in inverter-motor drive systems, high-frequency (HF) motor models are requested and the involved parameters have to be available.
Boglietti, Aldo +2 more
core +1 more source
Infeasibility Analysis of Half-Wavelength Transmission Systems
Energies, 2018 This paper analyzes the infeasibility of half-wavelength transmission systems in the aspects of power-frequency overvoltage and synchronization stability. The circuit model of the long-distance transmission system is established at first for steady-state
Zheng Xu, Jian Yang, Nengjin Sheng
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