Results 51 to 60 of about 1,077,385 (182)

Dynamic effects of fault modeling on stair-step and corner-point grids

Journal of Petroleum Exploration and Production Technology, 2021
Fault modeling has become an integral element of reservoir simulation for structurally complex reservoirs. Modeling of faults in general has major implications for the simulation grid.
Faruk O. Alpak, Tianhong Chen
doaj   +1 more source

Fault section location of collector lines based on phase comparison of zero-sequence current using the Kaiser window

International Journal of Electrical Power & Energy Systems
To address the limitations of existing single-phase grounding fault location methods for collector lines in wind farms, especially their insufficient adaptability to multi-branch topologies, this paper proposes a fault section location method based on ...
Yue Dai, Hongchun Shu, Cheng Guan, Yutao Tang, Yiming Han   +4 more
doaj   +1 more source

Analysis of multiple lightning overvoltage on 110 kV transmission lines

Results in Engineering
As pointed out by the CIGRE TB 549 report issued by the International Power Grid Committee, >80 % of cloud-to-ground lightning are multiple lightning strokes (MLS), posing a severe threat to overhead transmission lines.
Yutao Tang, Haoming Liu, Hongchun Shu, Yue Dai, Yiming Han   +4 more
doaj   +1 more source

Fault detection, prevention and recovery in current grid workflow systems

, 2009
The workflow paradigm is a highly successful paradigm for the creation of Grid applications. Despite the popularity of the workflow approach, the systems that support the execution of workflow applications in Grid environments are still not able to ...
Fahringer, T., Prodan, R., Plankensteiner, K., Kertesz, A., Kacsuk, P.   +4 more
core   +1 more source

Advanced control strategy for wind-storage to compensate hammer effect based on SID and FRR

International Journal of Electrical Power & Energy Systems
To address the seasonal variations in frequency regulation requirements (FRRs) for a hybrid renewable hydropower system, this study proposes an advanced wind-storage coordinated control strategy to compensate for the water hammer effect, based on system ...
Hongchun Shu, Jing Chen, Botao Shi, Guangxue Wang, Xi Wang, Shunguang Lei   +5 more
doaj   +1 more source

Sulfur Hexafluoride Gas Leakage Monitoring and Early-Warning Method for Electrical Power Facilities

IEEE Access, 2020
Most transformer substations in power supply facilities rely on sulfur hexafluoride electrical equipment. A sulfur hexafluoride gas leak can cause serious health concerns if effective measures are not adopted in time.
Chunrui Liu, Fujie Deng, Lei Shi, Feng Wang   +3 more
doaj   +1 more source

A novel fault analysis method considering control states for MMC grid-forming system with renewable energy generation

International Journal of Electrical Power & Energy Systems
This paper analyzes the fault equivalent models of grid-following and grid-forming converters under various fault conditions. A novel fault calculation method for MMC-HVDC grid-forming systems integrated with 100% renewable energy generation is proposed.
Bohao Zhou, Jiawei He, Bin Li, Ye Li, Yan Li, Runbin Cao   +5 more
doaj   +1 more source

Fault ride-through and grid disturbance mitigation for the stability of grid-connected floating offshore wind energy conversion systems

Engineering Science and Technology, an International Journal
Ensuring the stability of grid-connected floating offshore wind turbines (FOWTs) under grid disturbances, such as voltage sags, frequency deviations, and fault ride-through (FRT) events, is challenging, particularly when electrical measurements are ...
Aziz Watil, Karim El Mezdi, Saleh S. Alharbi, Salah S. Alharbi, Mustapha Faqir   +4 more
doaj   +1 more source

A New Data Fusion Method for Multi Terminal Fault Location Based on Sensor Networks

ITM Web of Conferences, 2018
Data fusion with different types of data that used for grid fault location can bring more accurate and clear results. Therefore, a new method for fault location which contains multi grid current and voltage, time and coordinate data information is ...
Cai Qing-Sen
doaj   +1 more source

Intelligent information systems for power grid fault analysis by computer communication technology

Energy Informatics
This study aims to enhance the intelligence level of power grid fault analysis to address increasingly complex fault scenarios and ensure grid stability and security.
Ronglong Xu, Jing Zhang
doaj   +1 more source