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Wind turbulence used as searching signal for MPPT in variable-speed wind energy conversion systems

Author

Listed:
  • Munteanu, Iulian
  • Bratcu, Antoneta Iuliana
  • Ceangǎ, Emil

Abstract

The control problem associated to a class of horizontal-axis fixed-pitch variable-speed low-power wind energy conversion systems, working in the partial load region, consisting in the energy conversion maximization, is approached here under the assumption that the wind turbine model and its parameters are poorly known. Using a new approach derived from the optimum seeking methods category, generically called Maximum Power Point Tracking (MPPT), the proposed control solution aims at driving the average position of the operating point near to optimality. Instead of inducing sinusoidal search signals, the wind turbulence is here used as search disturbance. The high-speed shaft's average rotational speed is slowly adjusted using the Fast Fourier Transform processing of some available measures from the system as an estimate of the operating point's position/distance to optimality. Numerical simulations are used for preliminary checking the control law based on this estimation.

Suggested Citation

  • Munteanu, Iulian & Bratcu, Antoneta Iuliana & Ceangǎ, Emil, 2009. "Wind turbulence used as searching signal for MPPT in variable-speed wind energy conversion systems," Renewable Energy, Elsevier, vol. 34(1), pages 322-327.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:1:p:322-327
    DOI: 10.1016/j.renene.2008.03.001
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    Citations

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    Cited by:

    1. Aubrée, René & Auger, François & Macé, Michel & Loron, Luc, 2016. "Design of an efficient small wind-energy conversion system with an adaptive sensorless MPPT strategy," Renewable Energy, Elsevier, vol. 86(C), pages 280-291.
    2. Carranza, O. & Figueres, E. & Garcerá, G. & Gonzalez, L.G., 2011. "Comparative study of speed estimators with highly noisy measurement signals for Wind Energy Generation Systems," Applied Energy, Elsevier, vol. 88(3), pages 805-813, March.
    3. Bizon, N., 2010. "On tracking robustness in adaptive extremum seeking control of the fuel cell power plants," Applied Energy, Elsevier, vol. 87(10), pages 3115-3130, October.
    4. Carranza, O. & Figueres, E. & Garcerá, G. & Gonzalez-Medina, R., 2013. "Analysis of the control structure of wind energy generation systems based on a permanent magnet synchronous generator," Applied Energy, Elsevier, vol. 103(C), pages 522-538.
    5. Bizon, Nicu, 2018. "Optimal operation of fuel cell/wind turbine hybrid power system under turbulent wind and variable load," Applied Energy, Elsevier, vol. 212(C), pages 196-209.

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