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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 +4 more
doaj +3 more sources
Resource-Saving Overcurrent Protection
EnergiesConstruction 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 +5 more
doaj +2 more sources
An Adaptive Overcurrent Protection Scheme for Distribution Networks [PDF]
IEEE Transactions on Power Delivery, 2015 Distribution networks are evolving toward the vision of smart grids, with increasing penetration of distributed generation (DG), introduction of active network management (ANM), and potentially islanded modes of operation. These changes affect fault levels and fault current paths and have been demonstrated to compromise the correct operation of the ...
A Dysko
exaly +4 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 +4 more
doaj +1 more source
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 +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 +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 +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 +4 more
doaj +1 more source
Overcurrent and Directional Overcurrent Protection for Microgrid
Andalasian International Journal of Applied Science, Engineering and Technology, 2023 Microgrids will become common in future electrical distribution networks. Numerous operating modes that occur in microgrids make the development of protection schemes and settings challenging. This paper aims to develop a simple protection scheme for the Microgrid IEC Benchmark without any expensive equipment such as communication apparatus.
Zahira Shiva Salsabila +2 more
openaire +1 more source
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 +4 more
doaj +1 more source