Results 21 to 30 of about 12,263,286 (349)

Analytical Optimal Currents for Multiphase PMSMs Under Fault Conditions and Saturation [PDF]

open access: yes, 2014
An original analytical expression is presented in this paper to obtain optimal currents minimizing the copper losses of a multi-phase Permanent Magnet Synchronous Motor (PMSM) under fault conditions.
FLIELLER, Damien   +3 more
core   +5 more sources

Analysis of energy dissipation in resistive superconducting fault-current limiters for optimal power system performance [PDF]

open access: yes, 2011
Fault levels in electrical distribution systems are rising due to the increasing presence of distributed generation, and this rising trend is expected to continue in the future.
Blair, Steven Macpherson   +4 more
core   +1 more source

High‐voltage direct current fault current interruption: A technology review

open access: yesHigh Voltage, 2020
European Union's Horizon 2020, Grant/Award Number: 691714 Abstract This review paper describes fault current interruption principles and various high‐voltage direct currrent (HVDC) circuit breaker technologies.
R. Smeets, N. Belda
semanticscholar   +1 more source

Detection of partial demagnetization fault in PMSMs operating under nonstationary conditions [PDF]

open access: yes, 2016
Demagnetization fault detection of in-service permanent magnet synchronous machines (PMSMs) is a challenging task, because most PMSMs operate under nonstationary circumstances in industrial applications.
Blaabjerg, Frede   +5 more
core   +3 more sources

An Adaptive Fault Current Limiting Control for MMC and Its Application in DC Grid

open access: yesIEEE Transactions on Power Delivery, 2020
This paper proposes an adaptive fault current limiting control (AFCLC) for modular multilevel converters (MMC). Without introducing extra current limiting devices, this control scheme enables fast fault current suppression during DC faults.
Binye Ni   +6 more
semanticscholar   +1 more source

Fault direction identification for wind power integration system

open access: yesThe Journal of Engineering, 2019
Traditional directional relays of AC transmission lines are usually based on 50 Hz information in frequency domain in China. However, this conventional approach cannot provide the correct fault direction for the lines connected to wind farm because of ...
Yu Chen   +5 more
doaj   +1 more source

Influence Analysis of Current Limiting Reactor on Pole-to-Pole Short Circuit Fault in DC Distribution System [PDF]

open access: yesE3S Web of Conferences, 2021
With the development of power electronic technology, flexible DC distribution system has gradually become a research hotspot. Pole-to-pole short circuit fault is the most serious fault type in DC distribution system. When pole-to-pole short circuit fault
Wang Zhenyu   +5 more
doaj   +1 more source

Transient fault area location and fault classification for distribution systems based on wavelet transform and Adaptive Neuro-Fuzzy Inference System (ANFIS) [PDF]

open access: yes, 2018
A novel method to locate the zone of transient faults and to classify the fault type in Power Distribution Systems using wavelet transforms and Adaptive Neuro-Fuzzy Inference Systems (ANFIS) has been developed.
Ghazizadeh-Ahsaee, Mahdi   +3 more
core   +2 more sources

Emergency Loading of a Transformer in a Coordinated Substation at Different Dynamic Loading Conditions

open access: yesIEEE Open Journal of Industry Applications, 2021
Utility encounters situations like when one out of two power transformers in the substation requires maintenance and only one transformer remains in operation.
A B M Shafiul Azam   +3 more
doaj   +1 more source

Series LC DC circuit breaker

open access: yesHigh Voltage, 2019
The article proposes a mechanical DC circuit breaker (CB) based on a series LC circuit. It requires two switches (a fast disconnector and an AC circuit breaker), an inductor and a capacitor, and therefore the cost is expected to be low.
Dragan Jovcic
doaj   +1 more source

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