Maximum power point tracking control of wind turbines based on equivalent sinusoidal wind

• Published in: Electric power systems research Vol. 223; p. 109534
• Main Authors: Zhou, Lianjun, Yin, Minghui, Sun, Xuekun, Song, Dandan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2023
• Subjects: Equivalent sinusoidal wind; Maximum power point tracking; Optimal parameter model method; Turbulence frequency; Wind power generation; Wind power generation; Optimal parameter model method; Turbulence frequency; Equivalent sinusoidal wind; Maximum power point tracking
• ISSN: 0378-7796; 1873-2046
• DOI: 10.1016/j.epsr.2023.109534

•The dominant turbulence frequency components strongly correlated with the optimal control parameters of maximum power point tracking in turbulent wind are found.•The extraction and index description of dominant turbulence frequency components are realized based on the equivalent sinusoidal wind.•By utilizing the equivalent sine frequency, the sample size required to construct the optimal parameter model that describes the relationship between turbulence characteristics and optimal control parameters is significantly reduced.•The control parameters estimated by the optimal parameter model based on equivalent sine frequency are closer to the actual optimal value.•A method for calculating and applying the equivalent sine frequency in maximum power point tracking control of wind turbine is proposed. The optimal parameter model method for maximum power point tracking (MPPT) control of wind turbines has good wind energy capture performance. However, there is a precondition that the quantitative relationship between optimal control parameters and turbulence characteristics is accurately described. The resolution of the existing turbulence frequency characterization indicators are insufficient. Therefore, a large number of sample data need to be obtained to clearly show the statistical relationship between them and the optimal control parameters, which is extremely time-consuming, and has a negative impact on the optimization results of control parameters. This paper equates the turbulent wind to the sinusoidal wind with the objective of the results of both acting on wind turbines are the same, so as to realize the extraction and index description of the dominant turbulent frequency components strongly related to the optimal control parameters. On this basis, a MPPT control method based on equivalent sinusoidal wind is proposed. This method greatly reduces the required sample size, and makes the setting of control parameters closer to the optimal value, which can further improve the efficiency of wind energy capture. Simulation analysis and experimental results based on wind turbine simulator verify the effectiveness of the proposed method. [Display omitted]