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Recovery of the voltage-dip speed increase in wind turbine by offline trajectory planning | IEEE Conference Publication | IEEE Xplore

Recovery of the voltage-dip speed increase in wind turbine by offline trajectory planning


Abstract:

In this paper, the performance of wind turbine speed control under line voltage dips is under scope. The focus is put on the post-fault behavior of the turbine mechanics,...Show More

Abstract:

In this paper, the performance of wind turbine speed control under line voltage dips is under scope. The focus is put on the post-fault behavior of the turbine mechanics, when the system has to be quickly steered back to the pre-fault optimal point without violating the generator torque limits, and avoiding to trigger drivetrain oscillatory modes. To this aim, a low computational burden control solution is proposed, combining a high-bandwidth-feedback pole placement strategy with a suitable state reference trajectory planning. A minimal recovery time is pursued in the trajectory design. The computational burden of optimization is shifted offline, evaluating the minimum time trajectories for a reasonable set of post-fault scenarios, and relying on a look up table to handle generic runtime faulty conditions. Simulations assess the promising performance of the proposed strategy.
Date of Conference: 23-26 October 2016
Date Added to IEEE Xplore: 22 December 2016
ISBN Information:
Conference Location: Florence, Italy

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