Blade-tip-speed ratio feedback control is applied to a wind turbine driven, grid connected, three phase, induction generator whose wound rotor winding is connected to a rectifier via slip rings. Power from the rotor winding flows through the rectifier to a switch-mode, step-up, DC to DC converter to re-charge a bank of batteries. The switch in the DC to DC converter has a variable duty cycle, and this design feature is used in a feedback control loop. A dynamic model of the complete system is presented along with simulation results.
References
1.
PerahiaJ.NayarC.V., “Model and simulation of a wind turbine powered permanent magnet alternator battery charging system,”Wind Engineering, vol. 19, No. 6, pp. 303–324, 1995.
2.
MohanN.UndelandT. M. W PRobbins, Power electronics: Converters, applications, and design, John Wiley & Sons, Inc., New York, pp. 33–36, pp. 47–51, pp. 75–81, pp. 230–231, and pp. 342–343, 1989.
3.
PellyB. R., Thyristor phase controlled converters & cycloconverters: Operation control & performance. Wiley, New York, 1971.
4.
LaviA.PolgeR. J., “Induction motor speed control with static inverter in the rotor,”IEEE Trans. on Power Apparatus and Systems, vol. 85, No. 1, pp. 76–84, 1966.
5.
PressW.H.FlanneryB.P.TeukolskyS.A.VetterlingW.T., Numerical recipes in Pascal: The art of scientific computing, Cambridge University Press, Cambridge, U.K., 1990.
