Individual pitch control strategy for a low wind speed wind turbine
Individual pitch control strategy for a low wind speed wind turbine
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- DOI: 10.1049/cp.2019.0372
- ISBN: 978-1-83953-125-5
- Location: Shanghai, China
- Conference date: 24-25 Oct. 2019
- Format: PDF
Low wind speed areas have certain advantages over high wind speed areas for electricity generation because they are closer to the urban electrical grid and the transport and installation costs are lower. The diameter of low wind speed wind turbines is larger and the unbalanced load caused by wind shear is a larger problem than in high wind speed turbines. In order to improve the output power performance and prolong the lifetime of the turbines, an independent pitch control (IPC) strategy is implemented by integrating the software GH Bladed and MATLAB. Interactive software is designed based on the named pipeline method to achieve a joint simulation of GH Bladed and MATLAB. According to the blade root load and the blade azimuth angle, the outside bending torque component in the fixed hub coordinate system is obtained using the Park transformation and the deviation of the three pitch angles of the individual control is obtained by using a fuzzy proportional-integral (PI) control strategy and the inverse Park transformation. The results show that the IPC strategy provides a reduction in the unbalanced load of the wind turbines and provides more stable output power.
Inspec keywords: control engineering computing; fuzzy control; Matlab; load regulation; blades; power system control; bending; PI control; wind turbines
Subjects: Fuzzy control; Control of electric power systems; Power system control; Power engineering computing; Control engineering computing; Wind power plants
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