Results 11 to 20 of about 925 (188)

The New Geomagnetic Monitoring Network in China: Insights From the 2024 Mother's Day Superstorm

Space Weather
China has established a ground‐based network system, that is the Chinese Meridian Project (CMP), to continuously monitor the geomagnetic field. The superstorm in May 2024 was analyzed using the CMP data.
Jing Wang, Yue Yan, Bingxian Luo, Chunming Liu, Hui Li, Jiaojiao Zhang, Yanhong Chen, Chen Wu, Zihan Wu, Ziqian Liu, Xin Wang, Ercha Aa, Xianzhi Ao   +12 more
doaj   +2 more sources

The Estimation of the Geomagnetically Induced Current Based on Simulation and Measurement at the Power Network: A Bibliometric Analysis of 42 Years (1979–2021)

IEEE Access, 2022
GIC (geomagnetic induced current) is a natural current that flows through a conductive substance. The purpose of this study is to provide bibliometric analysis on the computation of the GIC at the Power Network, since determining the backflow current ...
Kharismi Burhanudin, Mohamad Huzaimy Jusoh, Zatul Iffah Abdul Latiff, Mohd Helmy Hashim, Nur Dalila Khirul Ashar   +4 more
doaj   +1 more source

Geomagnetically Induced Currents at Middle Latitudes: Anonymous GIC data

, 2021
GIC Data: Contained are anonymized GIC data for the 7 nodes included in the corresponding manuscript. The file names indicate the node number and the method used to create the QDC value. For specific details, please see the manuscript. The format of the data within the files is: Time, GIC (A), GIC Quiet Day Curve(A), IQR (A) Note: One should expect ...
Kellerman, Adam C., McGranaghan, Ryan M., Bortnik, Jacob, Carter, Brett. A., Hughes, J., Arritt, Robert F., Venkataramani, Karthik, Perry, Charles H., McCormick, Jackson, Ngwira, Chigomezyo M., Cohen, Morris, Yue, Jia   +11 more
openaire   +1 more source

Geomagnetically Induced Currents at Middle Latitudes: 1. Quiet‐Time Variability

Space Weather, 2022
Geomagnetically induced currents (GICs) at middle latitudes have received increased attention after reported power grid disruptions due to geomagnetic disturbances. However, quantifying the risk to the electric power grid at middle latitudes is difficult
Adam C. Kellerman, Ryan Mcgranaghan, Jacob Bortnik, Brett A. Carter, Joseph Hughes, Robert F. Arritt, Karthik Venkataramani, Charles H. Perry, Jackson McCormick, Chigomezyo M. Ngwira, Morris Cohen, Jia Yue   +11 more
doaj   +1 more source

Harmonic content of the synchronous generator stator current in the case of unit transformer saturation due to geomagnetically induced currents [PDF]

E3S Web of Conferences, 2023
The study investigates the features of the operation of off-the-grid power systems. Such power systems are commonly used for supplying power to consumers spread throughout the Arctic zone of the Russian Federation, and their unique operating conditions ...
Vakhnina Vera, Kuvshinov Aleksei, Chernenko Aleksei, Pudovinnikov Roman   +3 more
doaj   +1 more source

HV Transformer Protection and Stabilization under Geomagnetically Induced Currents

Energies, 2020
This paper presents the results of research related to the issues arising from DC excitation of power transformers due to geomagnetically induced currents (GIC). First, the GIC phenomena and their influence on power system operation are discussed.
Daniel Bejmert, Klaus Boehme, Matthias Kereit, Waldemar Rebizant   +3 more
doaj   +1 more source

Simulation and Analysis of Geomagnetically Induced Current Levels in Shandong Power Grid

Space Weather, 2021
Geomagnetically induced current (GIC) in utility systems such as electric power grids occurring during extreme geomagnetic storms can exceed the tolerance limit of the systems, which can cause serious system damages.
Han Wang, Zan‐Yang Xing, Nanan Balan, Yan‐Ling Wang, Qing‐He Zhang, Li‐Kai Liang   +5 more
doaj   +1 more source

Geomagnetic Pulsations Driving Geomagnetically Induced Currents

Space Weather, 2021
Geomagnetically induced currents (GICs) are driven by the geoelectric field induced by fluctuations of Earth's magnetic field. Drivers of intense GICs are often associated with large impulsive events such as coronal mass ejections.
M. J. Heyns, S. I. Lotz, C. T. Gaunt
doaj   +1 more source

Modelling and analysis of LCC‐HVDC converter station for harmonic coupling of AC/DC power grid during geomagnetic storm

IET Power Electronics, 2023
In this paper, the problem of harmonic coupling between the converter transformer and the converter under the action of geomagnetically induced current (GIC) is proposed to be investigated.
Yang Peihong, Han Xiaoyong, Jiang Hui, Shi Xizhi, Zhang Zilei, Liu Chunming, Liu Lianguang   +6 more
doaj   +1 more source

Present day challenges in understanding the geomagnetic hazard to national power grids [PDF]

, 2009
Power grids and pipeline networks at all latitudes are known to be at risk from the natural hazard of geomagnetically induced currents. At a recent workshop in South Africa, UK and South African scientists and engineers discussed the current ...
A.W.P. Thomson, B. Opperman, Bernhardi, Bolduc, Boteler, Boteler, C.M. Ngwira, C.T. Gaunt, Eastwood, Erinmez, J.A. Wild, Kappenman, Kappenman, L.-A. McKinnell, Lahtinen, Lanzerotti, Liu, Molinski, Ngwira, P. Cilliers, P. Kotze, Pirjola, Pirjola, Pulkkinen, Pulkkinen, S.I. Lotz, Thomson, Trichtchenko, Watari, Wik, Wintoft   +30 more
core   +4 more sources