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Prediction of solar induced currents and effects on power transmission systems in central CanadaThe auroral-electrojet zone covers three quarters of Manitoba and consequently, solar storms strongly affect transmission lines. Harmonics are generated at transformers due to the saturation of their cores by induced currents, and the level of harmonics produced may cause malfunction of control relays, and yield unacceptable distortions in normal ac waveforms. The expected effects of long ac transmission systems were studied with emphasis on a 500 kv line to be built from Winnipeg to Minneapolis-St. Paul. Spectral analysis of induced current records from Manitoba Hydro's LaVerendrye station and magnetograms from IMS stations in Manitoba were used along with results of Campbell's work on the Alaskan pipeline induction problem (1978) in order to predict periodic and surge currents. It is concluded that the surge currents will produce significant levels of harmonics and corresponding operating problems during magnetic storms.
Document ID
19800016196
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Goddard, W. R.
(Manitoba Univ. Winnipeg, Manitoba, Canada)
Boerner, W. M.
(Illinois Univ. at Chicago Circle)
Date Acquired
August 10, 2013
Publication Date
December 1, 1979
Publication Information
Publication: NASA. Marshall Space Flight Center Solar-Terrest. Predictions Proc., Vol. 2
Subject Category
Electronics And Electrical Engineering
Accession Number
80N24689
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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