Geomagnetically induced currents and their effect on power systems
Hutchins, Trevor
Loading…
Permalink
https://hdl.handle.net/2142/30963
Description
Title
Geomagnetically induced currents and their effect on power systems
Author(s)
Hutchins, Trevor
Issue Date
2012-05-22T00:18:46Z
Director of Research (if dissertation) or Advisor (if thesis)
Overbye, Thomas J.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Geomagnetically induced current (GIC)
geomagnetic disturbance (gmd)
Mitigation
Solar storm
Flare
Ppower systems
modeling GIC
power grid
Abstract
High-impact, low-frequency (HILF) events pose a threat to power grids around the world. For example, solar storms that generate coronal mass ejections can induce a change in the Earth’s magnetic field. Geomagnetically induced current (GIC) then enters the power grid and causes unusual real and reactive power flows, voltage fluctuations, frequency shifts, undesired relay operations, high third-harmonic currents and telemetry and supervisory alarm failures. A storm on the order of 5,000 nT/min could occur in the not too distant future. Once this storm occurs, widespread damage to the power grid of unprecedented proportions is expected to result. Mitigation strategies are required to protect the integrity of the power system. Mechanisms involved in system restoration need to be prioritized, and the effectiveness of existing black-start procedures needs to be assessed. The representation and simulation of GIC can be embedded into power flow software in order to the study of sensitivity and transient stability of the North American bulk power system under a geomagnetic disturbance (GMD). This thesis presents in-depth background on GMDs and how they affect the power grid. The thesis will continue into the modeling and simulation of GMDs and GIC. Lastly, a GMD scenario will be explored and an appropriate mitigation strategy will be explained.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
