ACVT Fixed-Speed Control for Wind-Power Fluctuations
Abstract:In recent years, wind power has grown rapidly all around the world. However, as the operation capacity of modern wind farms become comparable with the existed power plants, the fluctuation output of a large wind farm brings many integration challenges as the penetration level increase. For a smoother output of a large wind farm into the utility grids, a variety of energy storage or conversion strategies are proposed. Although these proposals seem to be helpful to smooth out the fluctuating output of the wind farms, all these strategies always need to rely on not only the complicated computations but also those unsure estimation methods to achieve the power compensation works. In this paper, the Adaptive Continuously Variable Transmission (ACVT) adopting to the individual wind turbine for fixed-speed control is proposed. For the ACVT, regarded as a fluctuation filter, can adapt the driving speed transmitted from wind mill to a fixed-speed. Consequently, the output voltage of the individual wind turbine can maintain in stability. The main features of the proposal are confirmed by means of numerical simulations.
Document Type: Research Article
Publication date: 2012-07-01
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