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Simultaneous design of pitch control and active tower damping of a wind turbine by using multi-objective optimization

: Gambier, Adrian


Institute of Electrical and Electronics Engineers -IEEE-:
First Annual IEEE Conference on Control Technology and Applications, CCTA 2017 : Kohala Coast, Hawaii, August 27-30, 2017
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5090-2182-6
ISBN: 978-1-5090-2181-9
ISBN: 978-1-5090-2183-3 (Print)
Conference on Control Technology and Applications (CCTA) <1, 2017, Kohala Coast/Hawaii>
Bundesministerium für Wirtschaft und Technologie BMWi
0325813; WindUC
Wind under Conctrol
Conference Paper
Fraunhofer IWES ()

Collective pitch control (CPC) and active tower damping control (ATDC) are currently two standard control loops of practically all commercial large-sized, variable-speed, horizontal axis wind turbines. Both control loops are highly coupled and therefore they perform in a contradictory manner: while an optimal CPC increases loads in the first fore-aft tower frequency, the ATDC damps these loads by modifying the pitch angle, i.e. detuning the CPC. Thus, the main problem is to find controller parameters that produce the best possible compromise between both controllers. In the current work, the controllers for CPC and ATDC are designed by using a cooperative game-theoretic approach, whose solution is found by using multi-objective parametric optimization. Simulation results show that the proposed method yields satisfactory performance for both control loops.