Abstract
The use of down-regulation control strategies on turbines offers a means of stabilising the grid or improving the efficiency of the wind farm. Nonetheless, these de-rating strategies are often imposed upon an existing blade-pitch control structure, resulting in sub-optimal or poor performance. In particular, such an approach would potentially deteriorate the robustness of the rotor speed control loop and excite other turbine dynamics. Thus, this work proposes a blade-pitch control design for de-rating operation, where the strategy takes into account the changes in the aerodynamic characteristics of the turbine caused by down-regulation. Most importantly, the proposed controller retained the desired control bandwidth and robustness properties in both nominal and de-rating operations. Numerical simulations showed that an improvement on the pitch activities during down-regulation could lead to better reductions in the fatigue loads of some key turbine components.
Original language | English |
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Title of host publication | Proceedings of the 15th International Conference on Control and Automation (ICCA) |
Number of pages | 5 |
Publisher | IEEE |
Publication date | 2019 |
Pages | 708-712 |
ISBN (Print) | 978-1-7281-1165-0 |
ISBN (Electronic) | 978-1-7281-1164-3 |
DOIs | |
Publication status | Published - 2019 |
Event | 15th International Conference on Control and Automation - Edinburgh, United Kingdom Duration: 16 Jul 2019 → 19 Jul 2019 Conference number: 15 http://ieee-icca.org |
Conference
Conference | 15th International Conference on Control and Automation |
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Number | 15 |
Country/Territory | United Kingdom |
City | Edinburgh |
Period | 16/07/2019 → 19/07/2019 |
Internet address |
Series | IEEE International Conference on Control and Automation, ICCA |
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ISSN | 1948-3449 |