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Integral input-to-state stability of the drive-train of a wind turbine

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2 Author(s)
Chen Wang ; Control & Power Research Group, Dept. of Electrical and Electronic Engineering, Imperial College London, SW7 2AZ, UK ; George Weiss

This paper investigates the stability of a variable- speed wind turbine operating under low to medium wind speed. The turbine is controlled to capture as much wind energy as possible. We concentrate on the mechanical level of the turbine system, more precisely on the drive-train with the standard quadratic generator torque controller. We consider the two-mass model for the drive-train, with the inputs being the deviation of the active torque from an arbitrary positive nominal value and the tracking error of the generator torque. We show that the turbine system is integral input-to-state stable.

Published in:

Decision and Control, 2007 46th IEEE Conference on

Date of Conference:

12-14 Dec. 2007