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Conference paper

Operation Design of Wind Turbines in Strong Wind Conditions

In Proceedings of Ewea 2012 — 2012
From

Department of Wind Energy, Technical University of Denmark1

Technical University of Denmark2

KK-Electronic A/S3

Department of Informatics and Mathematical Modeling, Technical University of Denmark4

Mathematical Statistics, Department of Informatics and Mathematical Modeling, Technical University of Denmark5

Department of Electrical Engineering, Technical University of Denmark6

Automation and Control, Department of Electrical Engineering, Technical University of Denmark7

In order to reduce the impact on the electrical grid from the shutdown of MW wind turbines at wind speeds higher than the cut-out wind speed of 25 m/s, we propose in this paper to run the turbines at high wind speeds up to 40 m/s. Two different operation designs are made for both constant speed and variable speed pitch regulated wind turbines.

The variable speed design is more suitable for wind turbines to run at very high wind speeds which can help the turbine braking system to stop the turbine at the new "cut-out" wind speed. Reference power, rotational speed and pitch angle have been designed optimally. In order to reduce the possible increased loading, fatigue due to the wind gusts, control strategies have been considered for both constant sped and variable speed pitch regulated wind turbines.

The control study shows that the designed controllers can reduce the standard deviations efficiently for wind turbines at some selected wind high speeds.

Language: English
Publisher: European Wind Energy Association (EWEA)
Year: 2012
Proceedings: EWEC 2012 - European Wind Energy Conference & Exhibition
Types: Conference paper
ORCIDs: Shen, Wen Zhong , Poulsen, Niels Kjølstad and Niemann, Hans Henrik

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