Results 11 to 20 of about 7,321,916 (189)
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
doaj +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources
High VoltageABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been ...
Tao Liang +7 more
openaire +2 more sources
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
doaj +2 more sources
The Research of Voltage Sag and Power Frequency Overvoltage on 110kV Resistance Grounding System
Energy and Power Engineering, 2013 This paper researches the voltage transfer characteristics when one-phase ground fault occurred in the resistance grounding system, by using the theory of the asymmetric variable characteristics and the sequence network analysis of the -11 transformer, and concludes the scope of voltage sag and swell and the degree of power frequency overvoltage and ...
Guo Zeng +3 more
openaire +2 more sources
Differential Tissue-Coupled Powering for Battery-Free Injectable Electroceuticals. [PDF]
Adv Sci (Weinh)A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Wu H +13 more
europepmc +2 more sources
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
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
core +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