Comparison of control strategies for wind turbines

R. Hoffmann (Advisor: P. Mutschler )

Status: finished by PhD Thesis in 2002

In recent years, quite a few different control strategies for wind turbines have been developed. Many advantages and disadvantages of these control strategies can be found in the literature, but unfortunately they are partially not consistent or are valid only for one type of wind turbine working at very distinct site conditions.

In this study the main groups of control strategies are compared with one standardised approach. In order to guarantee the same conditions for all control strategies, this comparison has to be done on with numerical simulation. Because the differences of the control strategies show up mainly in their transient behaviour, a dynamic excitation from the wind is necessary in the simulation, too. The current focus is on the influence of control strategies on the enrgy capture as a function of different machine and site parameters.

P. Mutschler, B. Hagenkort, S. Jöckel: “Control method for variable speed stall-controlled wind turbines.” (opens in new tab)
European Wind Energy Conference EWEC, October 1997, Dublin

Hoffmann, R.; Mutschler, P.: “Energieertragsvergleich von Regelungskonzepten für Windkraftanlagen unter Berücksichtigung der Häufigkeitsverteilung des Windes” (opens in new tab)
5. Deutsche Windkonferenz (DEWEK 2000), Wilhelmshaven, 07.06-08.06.2000

Hoffmann, R.; Mutschler, P.: Energieertragsvergleich von Regelungskonzepten für Windkraftanlagen “Welche Regelung passt wann?” (opens in new tab)
Erneuerbare Energien 7/2000, Seite 39-41

Hoffmann, R.; Mutschler, P.: “The Influence of Control Strategies on the Energy Capture of Wind Turbines” (opens in new tab)
IAS 2000, Rom, 08.10.-12.10.2000

Mutschler, P.: Vortrag: “The Influence of Control Strategies on the Energy Capture of Wind Turbines” (opens in new tab)
IAS 2000, Rom, 08.10.-12.10.2000
[auch als.PPT=PowerPointPräsentation(ZIP) verfügbar]

Hoffmann, R.: Offenlegungsschrift DE 198 32 207 A 1: “Verfahren zur Bestimmung der Windgeschwindigkeit”; 2000

Mutschler, P., Hoffmann R.: “Comparison of Wind Turbines Regarding their Energy Generation” (opens in new tab)
PESC 2002, 23.09.-27.06., Queensland, Australien

Hoffmann, R.: “A comparison of control concepts for wind turbines in terms of energy capture” (opens in new tab)
D17 Darmstädter Dissertation, 2002