Blar i Institutt for elkraftteknikk på forfatter "Oftebro, Anja"
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Analysis of Slow Frequency Variations in the Nordic Power System
Oftebro, Anja (Master thesis, 2014)Slow oscillations in system frequency, with a periodic time of 60-90 seconds and amplitude of 50 mHz, has been observed in the Nordic grid. As a result the frequency is outside the limit of 50 +/- 0,1 Hz more often. It is ...