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Abstract
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Article Information:
Power Quality Investigation in a Wind Power Generation System
F. Gharehdaghi, H. Jamali, M. Deysi and A. Khalili
Corresponding Author: F. Gharedaghi
Submitted: 2011 September, 14
Accepted: 2011 October, 15
Published: 2012 March, 01 |
Abstract:
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Realizing the growing importance of wind energy, manufacturers have steadily been increasing the
unit size of the wind electric generators since the late 1980s. The connection of large wind farms to the grid
may cause problems in terms of power quality due to the variability of the energy extracted from the wind. The
mentioned power quality problems are generally taken into consideration after the grid integration of wind
farms. This paper discusses on the grid impedance evaluation method at wind farm terminals. The non-intrusive
method uses variations of the wind power production, and this permanent variability allows us to apply the
source impedance identification process, assuring its assessment. New algorithms are developed taking as a
reference the accurate GPS synchronized measurement of phase at a very stable power plant, to evaluate the
source impedance at a wind farm Point of Common Coupling (PCC) where complex variations of the voltage
are expected. The instantaneous value of the grid impedance will, not only, allow assigning responsibilities but
also will facilitate the design of equipments, network components, control systems tuning and protections
configuration. The development of dispersed generation will be positively influenced by the capacity of
measuring the network strength.
Key words: Grid impedance, power quality evaluation, wind power, , , ,
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Abstract
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Cite this Reference:
F. Gharehdaghi, H. Jamali, M. Deysi and A. Khalili, . Power Quality Investigation in a Wind Power Generation System. Research Journal of Applied Sciences, Engineering and Technology, (05): 433-438.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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