An ultra-capacitor for frequency stability enhancement in small-isolated power systems: Models, simulation and field tests

I. Egido, L. Sigrist, E. Lobato, L. Rouco and A. Barrado

Applied Energy, 2015, vol. 137, issue C, 670-676

Abstract: The most relevant issue in operation of isolated power systems is frequency stability. Frequency stability is concerned with the ability of generators to supply the loads at an acceptable frequency after a disturbance. Frequency stability is governed by the kinetic energy stored in the generator-prime mover rotating masses and the prime mover frequency primary regulation. If frequency excursions are not within +/−2.5Hz range, cascade tripping of the remaining generators can occur because of generator over/under frequency protections tripping. Energy storage systems can contribute to frequency stability enhancement if their discharging is governed by a frequency controller.

Keywords: Frequency control; Ultra-capacitor model; Renewable energy sources; Frequency stability (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (5)

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DOI: 10.1016/j.apenergy.2014.08.041

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