Results 21 to 30 of about 19,321 (267)

Switching on Power Harmonic Filters

Energy Engineering and Control Systems, 2018
In modern industrial power supply systems, there is observed rapid growth of time varying nonlinear loads having low power factor. The most adequate engineering solution for reactive power compensation of the loads is using compensation units including ...
Yuriy Varetsky
doaj   +1 more source

Non-Communication Based Time-Current-Voltage Dual Setting Directional Overcurrent Protection for Radial Distribution Systems With DG

IEEE Access, 2020
This paper proposes a novel protection scheme equipped with time current voltage dual setting directional overcurrent relays for radial distribution systems with (distributed generation) DG without the need of communication assistance.
Ahmed Abdullah Balyith, Hebatallah Mohamed Sharaf, Mostafa Shaaban, Ehab F. El-Saadany, H. H. Zeineldin   +4 more
doaj   +1 more source

Influence of Excitation Mode Difference on RAM Generator Overcurrent Protection Setting

Zhongguo dianli, 2023
The rotating asynchronous machine (RAM) system in the power stations of China General Nuclear Power Group (CGN) includes three types of generators —i.e., Shangdian generator, Zhongchuan generator and Remeng generator.
Runpei LI, Lin GUI, long WU, Xiaorong XIE, Xiangheng WANG   +4 more
doaj   +1 more source

Protection Coordination Index Assessment Using Fuzzy Logic Controller

Energies, 2022
This paper proposes the assessment method of the protection coordination index (PCI) for overcurrent protection relay and upstream relay. The protection coordination index is an indicator of how properly the equipment is protected by protective relay ...
Choong-Koo Chang, Ahmed Mohamed Elmashtoly   +1 more
doaj   +1 more source

Modeling and Detecting False Data Injection Attacks against Railway Traction Power Systems [PDF]

, 2017
Modern urban railways extensively use computerized sensing and control technologies to achieve safe, reliable, and well-timed operations. However, the use of these technologies may provide a convenient leverage to cyber-attackers who have bypassed the ...
Lakshminarayana, Subhash, Tan, Rui, Teng, Teo Zhan, Yau, David K. Y.   +3 more
core   +2 more sources

Optimal Coordination Of Distance And Directional Overcurrent Relays Using GA [PDF]

مجله مدل سازی در مهندسی, 2017
Proper coordination between distance relays and overcurrent in the power system is one of the most important issues for security and stability of system.
زهرا مروج, mojtaba gharjehloo, کاظم مظلومی   +2 more
doaj   +1 more source

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]

, 2011
A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme, Fletcher, Steven, Galloway, Stuart, Norman, Patrick   +3 more
core   +1 more source

Design of a pulse power supply unit for micro-ECM [PDF]

, 2014
Electrochemical micro-machining (μECM) requires a particular pulse power supply unit (PSU) to be developed in order to achieve desired machining performance. This paper summarises the development of a pulse PSU meeting the requirements of μECM. The pulse
A Muetze, AB Kamaraj, Alexandre Spieser, Atanas Ivanov, B Bhattacharyya, BJ Park, ES Lee, FM Ozkeskin, H Schulze, I Yang, J Kozak, J Kozak, JA McGeough, L Cagnon, L Yong, M Kock, MAH Mithu, MAH Mithu, R Mathew, R Schuster, S Burkert, SH Choi, SH Huang, T Tang, Y Liu, YJ Zhang, Z Zhang, Z Zhang, Z-W Fan   +28 more
core   +1 more source

A Gate Driver Based on Variable Voltage and Resistance for Suppressing Overcurrent and Overvoltage of SiC MOSFETs

Energies, 2019
A SiC MOSFET is a suitable replacement for a Si MOSFET due to its lower on-state resistance, faster switching speed, and higher breakdown voltage. However, due to the parasitic parameters and the low damping in the circuit, the turn-on overcurrent and ...
Jiangui Chen, Yan Li, Mei Liang
doaj   +1 more source

Differential Evolution-Based Overcurrent Protection for DC Microgrids

Energies, 2021
DC microgrids have advantages over AC microgrids in terms of system efficiency, cost, and system size. However, a well-designed overcurrent protection approach for DC microgrids remains a challenge.
Miao Li, Daming Zhang, Shibo Lu, Xiuhui Tang, Toan Phung   +4 more
doaj   +1 more source