Results 21 to 30 of about 1,432 (200)

Analysis of suppression switching overvoltage for CRAFT power supply

open access: yesEnergy 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
doaj   +1 more source

Investigation of a Low-Speed Commutation Voltage Shock Problem in Three-Level ANPC Inverter with Hybrid Modulation Mode

open access: yesMachines, 2023
With the development of the photovoltaic industry; there will be an increasing demand for efficient, high-power density, and low-cost grid interface converters.
Jian Yu   +4 more
doaj   +1 more source

Empowering and conquering infirmity of visually impaired using AI‐technology equipped with object detection and real‐time voice feedback system in healthcare application

open access: yesCAAI 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 and Oscillation Suppression Circuit With Switching Losses Optimization and Clamping Energy Feedback for SiC MOSFET [PDF]

open access: yes, 2021
The snubber circuit is a cost-effective solution to reduce the severe turn-off overvoltage and oscillation caused by the fast switching characteristics of SiC MOSFET.
Yang, Chengzi   +11 more
core   +1 more source

Energy Storage System Control Strategy for Restraining Overvoltage Caused by Switching Non-Load Power Transmission Lines

open access: yesIEEE Access, 2021
During the switching operation of the non-load power transmission lines, the undisired switching overvoltage issue is inevitable, causing grid voltage oscillations, waveform distortion and other phenomena at the end of the non-load power transmission ...
Bo Yang   +4 more
doaj   +1 more source

Analysis on switching overvoltage and suppression method of cable joint in 500 kV cable line

open access: yesEnergy Reports, 2021
The breakdown accident of cable joint occurs frequently when the sheath overvoltage cable line is closed, but the cable joint is ignored or simply treated in the previous overvoltage simulation of cable system.
Hongtao Ren, Ying Zhang
doaj   +1 more source

Mitigation of motor overvoltage in SiC-based drives using soft-switching voltage slew-rate (dv/dt) profiling [PDF]

open access: yes, 2022
In silicon carbide (SiC) device based motor drives, the high voltage slew rate (dv/dt) associated with the fast switching transitions results in excessive motor overvoltage, due to the reflected wave phenomenon, which increases the motor winding ...
Wenzhi Zhou (6575999)   +3 more
core   +2 more sources

Analysis on switching overvoltage of 500 kV GIS disconnector

open access: yesEnergy Reports, 2022
The 500 kV GIS disconnector of a pumped storage power station is detected to have the risk of operating overvoltage breakdown of the gas chamber. In this paper, the causes of the operating overvoltage of the disconnector of GI equipment are analyzed, and
Hongtao Ren
doaj   +1 more source

Overvoltages during switching operations of vacuum switching devices [PDF]

open access: yesZbornik radova, Elektrotehnicki institut Nikola Tesla, 2013
This paper presents the results of experimental studies of voltage phenomena in the switching operations of vacuum switching devices made by various manufacturers in several different configurations of 6 kV, 10 kV, 20 kV and 35 kV networks. During switching-on operations of the inductive loads, re-ignition of the electric arc between the contacts of ...
Vukelja Petar   +3 more
openaire   +2 more sources

True Breakdown Voltage and Overvoltage Margin of GaN Power HEMTs in Hard Switching

open access: yes, 2021
This work studies the dynamic breakdown voltage (BV) and overvoltage margin of a 650-V-rated commercial GaN power HEMT in hard switching. The dynamic BV measured in the hard switching circuits is over 1.4 kV, being 450 V higher than the static BV ...
Zhang, Yuhao   +5 more
core   +1 more source

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