Results 21 to 30 of about 11,033,050 (297)

A change-detection algorithm for short-circuit fault detection in closed-loop AC drives [PDF]

, 2013
This paper deals with an on-line method for turn-to-turn short-circuit fault detection in low-voltage permanent-magnet synchronous machine drives. Due to the closed-loop control, the fault effects are reflected in the voltage.
Johan Gyselinck, Gyselinck, Johan, KESTELYN, Xavier, Semail, Eric, Eric Semail, Yves Mollet, Meinguet, Fabien, Kestelyn, X., Mollet, Yves, Fabien Meinguet, Xavier Kestelyn   +10 more
core   +1 more source

Influence Mechanism and Suppression Control of the MMC on Short-Circuit Current Under AC Faults

IEEE Access, 2020
Modular multilevel converter based high voltage direct current (MMC-HVDC) transmission systems may increase the short-circuit current and affect the AC fault clearing of circuit breakers.
Jian Yang, Shurui Mao, Xiaodong Li, Zheng Xu   +3 more
doaj   +1 more source

Equivalent modeling method of induction motor contribution to short-circuit current

Energy Reports, 2022
When a short-circuit fault occurs in the power grid, induction motors in the distribution network will contribute to the short-circuit current. Accurate short-circuit current calculation of the motors requires detailed modeling of distribution network ...
Yantao Zhang, Yuhong Zhang, Xiaojie Pan, Bing Zhao, Jingbo He, Yi Han, Jian Zhang, Xueqiong Wang, Zhao Yu, Guangquan Bu, Jian Ye   +10 more
doaj   +1 more source

Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]

, 2010
An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G., Cross, K.J., A. Balestrero, J. W. McBride, G. Tribulato, K. J. Cross, L. Ghezzi, McBride, J.W., Balestrero, A., Ghezzi, L.   +9 more
core   +1 more source

Forces and Stresses in the Windings of a Superconducting Fault Current Limiter

Energies, 2022
This paper presents the design of a Superconducting Fault Current Limiter (SFCL) and calculation results of forces and stresses in the windings of a resistive fault current limiter.
Janusz Kozak
doaj   +1 more source

Comparative Analysis of High-Voltage Power Line Models for Determining Short-Circuit Currents in Towers Earthing Systems

Energies, 2021
The article deals with the problems of single-phase short-circuit current distribution in overhead power lines. Short-circuit disturbances cause many negative phenomena in power networks.
Rafał Tarko, Jakub Gajdzica, Wiesław Nowak, Waldemar Szpyra   +3 more
doaj   +1 more source

A Solid-State Circuit Breaker Based on Coupled-Inductor for Battery Energy Storage System

IEEE Access
In a battery energy storage system (BESS), short-current protection is critical and need to be designed carefully to enhance the system’s safety and reliability.
Kuo-Yuan Lo, Ting-Wei Huang, Kuo-Hsiang Liu   +2 more
doaj   +1 more source

Research on a fault current limiter based on variable reactor

Zhejiang dianli, 2022
With the increase of the power load in power grid， the short circuit level continues to rise， and excessive short-circuit current will do great damage to power equipment and imperil power systems.
GU Yu, CHENG Guanji, LU Song, LI Dongdong   +3 more
doaj   +1 more source

Reliability Enhancement of Power IGBTs under Short-Circuit Fault Condition Using Short-Circuit Current Limiting-Based Technique

Energies, 2021
Like the widely-used semiconductor switch, Insulated Gate Bipolar Transistors (IGBTs) are subject to many failures and degradation in power electronic converters.
Sadegh Mohsenzade, Javad Naghibi, Kamyar Mehran   +2 more
doaj   +1 more source

Design of high-power intrinsically safe power supply based on fault current change rate

Gong-kuang zidonghua, 2021
In order to solve the problems of low output power, poor protection effect, and slow dynamic response speed of existing intrinsically safe power supply, a high-power intrinsically safe power supply based on fault current change rate is designed.
KANG Qian, XU Chunyu, TIAN Muqin, SONG Jiancheng   +3 more
doaj   +1 more source