Solar-Induced-Currents in Power Systems: Cause and Effects

Albertson, V. D.; Thorson, John M.; Clayton, R.E.; Tripathy, S.C.

doi:10.1109/tpas.1973.293746

Cited by 115 publications

(51 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As noted in [2], it has been known since at least the early 1940's that GMDs have the potential to impact the power grid. This is due to GMD-related changes in the earth's magnetic field inducing quasi-dc electric fields in the earth (with frequencies usually much below 1 Hz) with the electric field's magnitude and direction GMD event dependent.…”

Section: Overview Of Gic Power Flow Modelingmentioning

confidence: 99%

See 1 more Smart Citation

Integration of geomagnetic disturbance modeling into the power flow: A methodology for large-scale system studies

Overbye

Hutchins

Shetye

et al. 2012

2012 North American Power Symposium (NAPS)

108

View full text Add to dashboard Cite

Abstract-This paper presents a methodology for integrated power flow modeling of the impact of geomagnetic disturbances (GMDs) on the power system voltage stability. GMDs cause quasi-dc, geomagnetically induced currents (GICs) in the transformers and transmission lines, which in turn cause saturation of the high voltage transformers, greatly increasing their reactive power consumption. GICs can be calculated using standard power flow modeling parameters such as line resistance, augmented with several GIC specific fields including substation geographic coordinates and grounding resistance, transformer configuration, and transformer coil winding resistances. When exact values are not available estimated quantities can be used. By then integrating GIC into power flow analysis, the changes in reactive power losses and bus voltages can be quantified to assess the risk of voltage instability and large-scale voltage collapse. An example calculation is provided for a North American Eastern Interconnect model.

show abstract

Section: Overview Of Gic Power Flow Modelingmentioning

confidence: 99%

“…These quasi-dc currents can then cause halfcycle saturation in the power transformers, resulting in increased transformer reactive power losses. The reactive power losses are usually assumed to varying linearly with the GICs in the transformer [2], [3].…”

Section: Overview Of Gic Power Flow Modelingmentioning

confidence: 99%

Integration of geomagnetic disturbance modeling into the power flow: A methodology for large-scale system studies

Overbye

Hutchins

Shetye

et al. 2012

2012 North American Power Symposium (NAPS)

108

View full text Add to dashboard Cite

show abstract

“…Albertson et al (1973) established that localized heating can occur shortly after exposure to a GIC, and the effects may be cumulative. Overheating can shorten the life of a transformer, and if severe enough, it could result in an early catastrophic failure.…”

Section: Harmonicsmentioning

confidence: 99%

Geomagnetic Storms and Long-Term Impacts on Power Systems

Kirkham¹,

Makarov²,

Dagle³

et al. 2011

View full text Add to dashboard Cite

show abstract

“…However, this storm and a similar sized storm in 1940 resulted in power system problems as far south as southern Georgia. In events like this, the above-depicted boundaries could have extended even further equator-ward [Albertson, 1972, McNish, 1940, Davidson, 1940. …”

Section: An Overview Of Power System Reliability and Related Space Wementioning

confidence: 99%

Space Storms and Space Weather Hazards

Daglis¹

2001

View full text Add to dashboard Cite

Subject Terms Report Classification unclassified Classification of this page unclassified Classification of Abstract unclassified Limitation of Abstract UU Number of Pages 486REPORT DOCUMENTATION PAGE Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, -to review recent spacecraft measurements that have provided new insight into the dynamics and effects of space storms; -to review space weather hazards associated with space storms and pertinent to the operation of technological systems in space and on ground;-to discuss and assess methods of space weather forecasting, as well as national and international initiatives towards an efficient development of space climatology.Space weather, the invisible but nevertheless effective result of solar activity and solar-terrestrial coupling, has affected the operations of communication systems since the appearance of telegraph in the 19th century, though as an unknown trouble factor. Nowadays, the effects of space weather affect in various ways all communication modes, from cable to wireless to space-based systems. Moreover, space weather hazards include malfunction or even permanent damage of power distribution grids and of telecommunication, navigation and surveillance satellites, disturbances of over-the-horizon (OTH) radar, HF, VHF and UHF communications, surveying and navigation systems that use Global Positioning System (GPS) satellites, surveillance (optical and radar), and satellite tracking. Space weather influences on the Earth's weather and climate is still a developing topic. Little is known concerning the biological effects of space weather, especially regarding astronauts.This Institute could not be timelier. Space Weather, which has been defined as "conditions on the sun and in the solar wind, magnetosphere, ionosphere, and thermosphere that can influence the performance and reliability of space-and ground-based technological systems and can endanger human life", encompasses a broad range of phenomena impacting both space science and technology. The effects of Space Weather, while present throughout the solar cycle, gain particular prominence around the peak of the 11-year sunspot activity; the maximum of cycle 23 occurred in summer 2000.The fact that this ASI on Space Weather was held in Europe is particularly appropriate. European countries host a considerable repository of knowledge and world-class facilities in this field. Nevertheless, while Space Weather activities in c...

show abstract

Solar-Induced-Currents in Power Systems: Cause and Effects

Cited by 115 publications

References 2 publications

Integration of geomagnetic disturbance modeling into the power flow: A methodology for large-scale system studies

Integration of geomagnetic disturbance modeling into the power flow: A methodology for large-scale system studies

Geomagnetic Storms and Long-Term Impacts on Power Systems

Space Storms and Space Weather Hazards

Contact Info

Product

Resources

About