Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Power Regulation of Variable Speed Wind Turbines using Pitch Control based on Disturbance Observer

  • Joo, Young-Jun (ASRI, School of Electrical Engineering, Seoul National University) ;
  • Back, Ju-Hoon (School of Robotics, Kwangwoon University)
  • Received : 2011.01.06
  • Accepted : 2012.02.01
  • Published : 2012.03.01
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Abstract

Most variable speed wind turbines have pitch control mechanisms and one of their objectives is to protect turbines when the wind speed is too high. By adjusting pitch angles of wind turbine, the inlet power and the torque developed by the turbine are regulated. In this paper, the difference between the real wind speed and its rated value is regarded as a disturbance, and a component called disturbance observer (DOB) is added to the pre-designed control loop. The additional DOB based controller estimates the disturbance and generates a compensating signal to suppress the effect of disturbance on the system. As a result, the stability and the performance of the closed loop system guaranteed by an outer-loop controller (designed for a nominal system without taking into account of disturbances) are approximately recovered in the steady state. Simulation results are presented to verify the performance of the proposed control scheme.

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References

  1. N. Horiuchi and T. Kawahito, "Torque and power limitations of variable speed wind turbines using pitch control and generator power control," in Proceedings of IEEE PES SM 2001 Conference, Vancouver, Canada, Jul. 2001, pp. 638-643.
  2. P. Novak, T. Ekelund, I. Jovik, and B. Schmidtbauer, "Modeling and control of variable-speed windturbine drive-system dynamics," IEEE Contr. Syst. Mag., vol. 15, no. 4, pp. 28-38, Aug. 1995. https://doi.org/10.1109/37.408463
  3. W. E. Leithead and B. Connor, "Control of variable speed wind turbines: design task," Int. J. of Control, vol. 73, no. 13, pp. 1189-1212, Nov. 2000. https://doi.org/10.1080/002071700417849
  4. E. Muljadi and C. P. Butterfield, "Pitch-controlled variable-speed wind turbine generation," IEEE Trans. on Ind. Applicat., vol. 37, no. 1, pp. 240-246, Feb. 2001. https://doi.org/10.1109/28.903156
  5. F. D. Bianchi, R. J. Mantz, and C. F. Christiansen, "Control of variable-speed wind turbines by LPV gain scheduling," Wind Energy, vol. 7, no. 1, pp. 1-8, Mar. 2004. https://doi.org/10.1002/we.103
  6. F. Velenciaga and P. F. Puleston, "High-order sliding control for a wind energy conversion system based on a permanent synchronous generator," IEEE Trans. on Energy Convers., vol. 23, no. 3, pp. 860-867, Sep. 2008. https://doi.org/10.1109/TEC.2008.922013
  7. Z. Hu, J. Wang, Y. Ma, and X. Yan, "Research on speed control system for fixed-pitch wind turbine based on disturbance observer," in Proceedings of WNWEC 2009, Nanjing, China, Sep. 2009, pp. 1-5.
  8. M. Geyler and P. Caselitz, "Robust multivariable pitch control design for load reduction on large wind turbines," J. of Solar Energy Eng., vol. 130, no. 3, pp. 1-12, Aug. 2008.
  9. H. Shim and Y. Joo, "State space analysis of disturbance observer and a robust stability condition," in Proceedings of 46th IEEE CDC, New Orleans, LA, USA, Dec. 2007, pp. 2193-2198.
  10. Y. Joo, J. Back, and S. H. Song, "Power and torque limitations of variable speed wind turbines using pitch control based on disturbance observer," in Proceedings of 16th Int. Conf. on Electrical Engineering, Busan, Korea, Jul., 2010.
  11. S. Heier, Grid Integration of Wind Energy Conversion Systems, John Wiley & Sons, New York, 1998.
  12. A. Isidori, Nonlinear Control Systems, Third Ed., Springer, 1995.
  13. H. K. Khalil, Nonlinear Systems, Third Ed., Prentice Hall, 2002.
  14. J. Back and H. Shim, "Adding robustness to nominal output-feedback controllers for uncertain nonlinear systems: A nonlinear version of disturbance observer," Automatica, vol. 44, no. 10, pp. 2528-2537, Oct. 2008. https://doi.org/10.1016/j.automatica.2008.02.024
  15. H. K. Khalil and P. V. Kokotovic, "Control of linear systems with multiparameter singular perturbations," Automatica, vol. 15, pp. 197-207, 1979. https://doi.org/10.1016/0005-1098(79)90070-0

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