Results 1 to 10 of about 11,958 (187)

Research on overcurrent protection curve model and control of solid state power controller [PDF]

Scientific Reports
Partially or fully electrified of advanced equipment has become the main development trend. SSPC (Solid State Power Controller) play a crucial role in ensuring the safe and reliable operation of distribution systems.
Zhijun Jiang, Junming Zhang, Yufang Lu, Jianjun Zhang   +3 more
doaj   +2 more sources

Resource-Saving Overcurrent Protection

Energies
Construction of relay protections of electrical installations without the use of bulky metal- and insulation-intensive measuring current transformers (CTs) was repeatedly discussed at Conferences of the International Council on Large Electric Systems ...
Dauren Dzhambulovich Issabekov, Aleksandr Petrovich Kislov, Vadim Pavlovich Markovskiy, Nurlybek Shakaevich Zhumataev, Aliya Kairullovna Zhumadirova, Damir Serikovich Narynbayev   +5 more
doaj   +2 more sources

Overcurrent Protection of Radial Distribution Network

International Journal of Electrical Engineering and Applied Sciences, 2022
Overcurrent relay is the device that used in the protection of the power system network when there is any presence of fault. This paper represents the performance of  overcurrent protection of radial distribution network. The response of the current and
M. H. Hairi, M. N. Kamarudin , A.S. M. Isira, M. F. P. Mohamed, S. A. Sobri   +4 more
doaj   +2 more sources

Study on the IGBT Overcurrent Failure of VSC-HVDC Converter Valve

Zhongguo dianli, 2021
IGBT overcurrent failure, which is one of the important factors harming VSC-HVDC safe operation, can easily lead to module explosion, water cooling system leakage and even the converter valve shutdown.
Jingbo FENG, Zheng LV, Weihua DENG, Rong HU, Xinying WANG   +4 more
doaj   +1 more source

Adaptive overcurrent protection scheme for distribution networks with connection of mobile energy storage devices

Energy Reports, 2023
The increasing penetration of renewable energy sources in distribution networks has caused great challenges to the reliable operation of the conventional overcurrent protection schemes.
Lijing Sun, Haitao Liu, Yueming Ji, Chen Wei, Xintong Liu, Jiawei Yuan, Zaibin Jiao   +6 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

Improvement of overcurrent protection for control rod drive mechanism power system

Energy Reports, 2023
Control rod drive mechanism (CRDM) in nuclear reactors powered by two motor generator units running in parallel, an excitation fault in one of the generators will cause the terminal current to rise in another generator, which will cause the overcurrent ...
Lingjin Zhu, Xianggen Yin, Liming Tan, Yikai Wang, Tiejun Ma, Yang Deng, Zhen Li, Qinghui Lu   +7 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

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

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