Shutdown of an offshore wind power plant without using a brake to meet the required ramp rate in various storm-driven conditions

Y.H. Kim, J.H. Kim, Y.C. Kang, B.J. Lee, Olimpo Anaya-Lara, G. Burt, M.J. O'Malley

Research output: Contribution to journalArticle

Abstract

This paper proposes an offshore WPP (wind power plant) shutdown algorithm that does not use a braking system and meets the required ramp rate in the grid code in various storm-driven conditions. The proposed algorithm determines the number of WGs (wind generators) to shut down simultaneously to achieve this requirement without using brakes. Based on the storm speed and direction measured at a WM (wind mast) installed several kilometers away from the WPP, the storm-arrival time from the WM to each WG is calculated. Then, an arrival-ordered sequence is generated for the WGs based on these storm-arrival times. The WGs are grouped in a predetermined number to shut down simultaneously. The shutdown start- and end-times of the WGs are determined by considering the storm-arrival time and the shutdown duration time. The algorithm re-calculates the storm-arrival times and the shutdown start- and end-times of the WGs if the storm speed and/or direction change. The various test results demonstrate that the algorithm successfully shuts down the WPP without using a brake by meeting the required ramp rate even when the storm speed and direction change.
LanguageEnglish
Pages1011-1020
Number of pages10
JournalEnergy
Volume82
Early online date28 Feb 2015
DOIs
Publication statusPublished - 15 Mar 2015

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Plant shutdowns
Brakes
Wind power
Power plants
Braking

Keywords

  • shutdown
  • grid code
  • wind power plant
  • wind mast
  • ramp rate
  • braking system

Cite this

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title = "Shutdown of an offshore wind power plant without using a brake to meet the required ramp rate in various storm-driven conditions",
abstract = "This paper proposes an offshore WPP (wind power plant) shutdown algorithm that does not use a braking system and meets the required ramp rate in the grid code in various storm-driven conditions. The proposed algorithm determines the number of WGs (wind generators) to shut down simultaneously to achieve this requirement without using brakes. Based on the storm speed and direction measured at a WM (wind mast) installed several kilometers away from the WPP, the storm-arrival time from the WM to each WG is calculated. Then, an arrival-ordered sequence is generated for the WGs based on these storm-arrival times. The WGs are grouped in a predetermined number to shut down simultaneously. The shutdown start- and end-times of the WGs are determined by considering the storm-arrival time and the shutdown duration time. The algorithm re-calculates the storm-arrival times and the shutdown start- and end-times of the WGs if the storm speed and/or direction change. The various test results demonstrate that the algorithm successfully shuts down the WPP without using a brake by meeting the required ramp rate even when the storm speed and direction change.",
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author = "Y.H. Kim and J.H. Kim and Y.C. Kang and B.J. Lee and Olimpo Anaya-Lara and G. Burt and M.J. O'Malley",
year = "2015",
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Shutdown of an offshore wind power plant without using a brake to meet the required ramp rate in various storm-driven conditions. / Kim, Y.H.; Kim, J.H.; Kang, Y.C.; Lee, B.J.; Anaya-Lara, Olimpo; Burt, G.; O'Malley, M.J.

In: Energy, Vol. 82, 15.03.2015, p. 1011-1020.

Research output: Contribution to journalArticle

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AU - Kim, Y.H.

AU - Kim, J.H.

AU - Kang, Y.C.

AU - Lee, B.J.

AU - Anaya-Lara, Olimpo

AU - Burt, G.

AU - O'Malley, M.J.

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N2 - This paper proposes an offshore WPP (wind power plant) shutdown algorithm that does not use a braking system and meets the required ramp rate in the grid code in various storm-driven conditions. The proposed algorithm determines the number of WGs (wind generators) to shut down simultaneously to achieve this requirement without using brakes. Based on the storm speed and direction measured at a WM (wind mast) installed several kilometers away from the WPP, the storm-arrival time from the WM to each WG is calculated. Then, an arrival-ordered sequence is generated for the WGs based on these storm-arrival times. The WGs are grouped in a predetermined number to shut down simultaneously. The shutdown start- and end-times of the WGs are determined by considering the storm-arrival time and the shutdown duration time. The algorithm re-calculates the storm-arrival times and the shutdown start- and end-times of the WGs if the storm speed and/or direction change. The various test results demonstrate that the algorithm successfully shuts down the WPP without using a brake by meeting the required ramp rate even when the storm speed and direction change.

AB - This paper proposes an offshore WPP (wind power plant) shutdown algorithm that does not use a braking system and meets the required ramp rate in the grid code in various storm-driven conditions. The proposed algorithm determines the number of WGs (wind generators) to shut down simultaneously to achieve this requirement without using brakes. Based on the storm speed and direction measured at a WM (wind mast) installed several kilometers away from the WPP, the storm-arrival time from the WM to each WG is calculated. Then, an arrival-ordered sequence is generated for the WGs based on these storm-arrival times. The WGs are grouped in a predetermined number to shut down simultaneously. The shutdown start- and end-times of the WGs are determined by considering the storm-arrival time and the shutdown duration time. The algorithm re-calculates the storm-arrival times and the shutdown start- and end-times of the WGs if the storm speed and/or direction change. The various test results demonstrate that the algorithm successfully shuts down the WPP without using a brake by meeting the required ramp rate even when the storm speed and direction change.

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