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Improving participation of doubly fed induction generator in frequency regulation in an isolated power system.
- Source :
-
International Journal of Electrical Power & Energy Systems . Sep2018, Vol. 100, p550-558. 9p. - Publication Year :
- 2018
-
Abstract
- An increasing penetration of renewable power resources (particularly wind farms) is observed in power systems during the last years. There is a frequency control concern with these kinds of power resources because they do not provide the so-called inertial response. Since the doubly fed induction generator (DFIG) equipped with Variable Speed Wind Turbine (VSWT) is the mostly used type of generator in wind farms, this paper proposes a new control approach allowing the DFIG to participate more efficiently in the power system frequency control. The approach consists of three steps: (1) Estimating the active power mismatch Δ P 0 between the active electrical power and the mechanical power which appears at the first moment after the perturbance at the DFIG, (2) based on Δ P 0 determine the electrical power reference P ref of the active power controller, and (3) appropriate removal of Δ P 0 if the power frequency deviation is above a prescribed value and the automatic generation control (AGC) is activated. The obtained simulation results on a simple 2-bus system and on IEEE 14-bus test system show that the proposed approach has several advantages over existing approaches. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01420615
- Volume :
- 100
- Database :
- Academic Search Index
- Journal :
- International Journal of Electrical Power & Energy Systems
- Publication Type :
- Academic Journal
- Accession number :
- 128804197
- Full Text :
- https://doi.org/10.1016/j.ijepes.2018.03.011