Results 21 to 30 of about 1,047,159 (304)

Understanding the Light‐Intensity Dependence of the Short‐Circuit Current of Organic Solar Cells

open access: yesAdvanced Theory and Simulations, 2020
In organic solar cells, bimolecular recombination is a key factor limiting the device performance and creating the need for characterization. Light‐intensity‐dependent short‐circuit current density measurements are a frequently used tool to qualitatively
Paula Hartnagel, T. Kirchartz
semanticscholar   +1 more source

A Novel Fault Diagnosis Technique of Interturn Short-Circuit Fault for SRM in Current Chopper Mode

open access: yesIEEE transactions on industrial electronics (1982. Print), 2022
The interturn short-circuit fault of stator winding is a common failure mode in switched reluctance motors (SRMs), which can severely harm the operation of the motor. In this article, a novel method for diagnosing the interturn short-circuit fault in the
Pinjia Zhang   +3 more
semanticscholar   +1 more source

Characteristics of Short-Circuit Current in Distribution Network with Doubly-Fed Wind Power System

open access: yesShanghai Jiaotong Daxue xuebao, 2023
The doubly-fed induction generator (DFIG) is connected to the distribution network as a distributed power source, which turns a radial single power supply system into a dual power supply system and changes the topology of the distribution network. When a
XI Xinze, XING Chao, QIN Risheng, HE Tingyi, HE Peng, MENG Xian, CHENG Chunhui
doaj   +1 more source

Impact of the Short-Circuit Current Value on the Operation of Overhead Connections in High-Voltage Power Stations

open access: yesEnergies, 2023
This paper focuses on determining the effects of short-circuit current values on the operation of high-voltage substations. The analyses performed focused on the dynamic and thermal effects on the short-circuit current for different input data ...
Łukasz Kozarek   +11 more
doaj   +1 more source

Influence of the HTS Winding Tape on Limiting the Transient Currents in Superconducting Transformers

open access: yesEnergies, 2022
The article presents an extended computer model of a HTS (high temperature superconducting) 21 MVA 70/10.5 kV transformer with severalfold compound windings, based on a verified PSpice model of 10 kVA transformer with single windings. Two superconducting
Paweł Surdacki, Łukasz Woźniak
doaj   +1 more source

Bidirectional Short-Circuit Current Blocker for DC Microgrid Based on Solid-State Circuit Breaker

open access: yesElectronics, 2020
In order to solve the imminent problem in that the traditional protection strategy cannot meet time requirements, together with the fact that the rotational inertia of a DC microgrid is small and short-circuit fault develops rapidly, a bidirectional ...
Wang Lujun   +4 more
semanticscholar   +1 more source

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

open access: yesEnergy 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   +10 more
doaj   +1 more source

Research on the optimisation strategy of short-circuit current limitation based on quantum genetic algorithm

open access: yesThe Journal of Engineering, 2019
With the expansion of urban power grid, short-circuit current issue becomes more important. This study proposes an effective approach to optimise short-circuit current limiting measure configuration.
Jianlin Yang   +5 more
doaj   +1 more source

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

open access: yesEnergies, 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   +3 more
doaj   +1 more source

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

open access: yesEnergies, 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

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