Proceedings ArticleDOI
Voltage Flicker Mitigation Strategy Based on Individual Pitch Control of Wind Turbine
Jingren Xu,Yingming Liu +1 more
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TLDR
In this article, an individual pitch control strategy based on the combined feedback of output power and azimuth is proposed to reduce the impact of wind turbine output power fluctuations on voltage flicker.Abstract:
In order to reduce the impact of wind turbine output power fluctuations on voltage flicker, an individual pitch control strategy based on the combined feedback of output power and azimuth is proposed. First, an equivalent wind speed model considering turbulent wind, wind shear and tower shadow effect is established, and a wind turbine control model is built based on FAST-MATLAB/Simulink. Secondly, a band-pass filter is designed in the individual pitch control loop to filter out the 3P pulsation component of the wind turbine output power, and the pitch angle adjustment signal is obtained through the BP neural network PID controller to combine the azimuth angle to transform it into each the pitch angle adjustment signal of the blade is superimposed with the unified pitch angle to reduce the power fluctuation of the wind turbine. Finally, simulation analysis is carried out based on the FAST-MATLAB/Simulink platform. The simulation results show that, compared with the traditional PI individual pitch control, the joint control strategy can effectively stabilize the output power of the wind turbine and reduce the voltage flicker.read more
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Journal ArticleDOI
Flicker Source Detection Including Fixed Speed Wind Turbines Using Empirical Mode Decomposition
TL;DR: In this article , an approach to identify multiple flicker sources at the point of common coupling (PCC) was described, and two classifiers based on the Naive-Bayes and the support vector machine (SVM) were used to detect the faults.
References
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Journal ArticleDOI
Simulation model of wind turbine 3p torque oscillations due to wind shear and tower shadow
Dale Dolan,Peter W. Lehn +1 more
TL;DR: In this paper, an analytical formulation of the generated aerodynamic torque of a three-bladed wind turbine including the effects of wind shear and tower shadow is presented, which is suitable for real-time wind turbine simulation or other time domain simulation of wind turbines in power systems.
Journal ArticleDOI
Flicker study on variable speed wind turbines with doubly fed induction generators
Tao Sun,Zhe Chen,Frede Blaabjerg +2 more
TL;DR: In this article, a simulation model of a MW-level variable speed wind turbine with a doubly fed induction generator was developed in the simulation tool of PSCAD/EMTDC.
Journal ArticleDOI
Flicker Emission of Wind Turbines during Continuous Operation
TL;DR: In this article, an analysis and the modeling of the flicker emission of wind turbines is presented, where the theoretical aspects of flicker algorithm, wind turbine characteristics, and the generation of wind turbine flicker during continuous operation are discussed.
Journal ArticleDOI
Flicker Mitigation by Active Power Control of Variable-Speed Wind Turbines With Full-Scale Back-to-Back Power Converters
TL;DR: In this article, the authors present a simulation model of a megawatt-level variable-speed wind turbine with a full-scale back-to-back power converter developed in the simulation tool of PSCAD/EMTDC.
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