A Spectrum Correction Method Based on Optimizing Turbulence Intensity

被引：4
作者：
Yi, Wenwu [1 ,2 ]
Lu, Ziqi [1 ,2 ]
Hao, Junbo [1 ,2 ]
Zhang, Xinge [1 ,2 ]
Chen, Yan [1 ,2 ]
Huang, Zhihong [1 ,2 ]
机构：
[1] Shantou Univ, Key Lab Intelligent Mfg Technol, Minist Educ, Shantou 515063, Peoples R China
[2] Shantou Univ, Inst Energy Sci, Shantou 515063, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
uniform wind field simulation; turbulence intensity; deviation of standard deviation; spectral representation; SIMULATION;
D O I：
10.3390/app12010066
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Based on the classical spectral representation method of simulating turbulent wind speed fluctuation, a harmonic superposition algorithm was introduced in detail to calculate the homogeneous turbulence wind field simulation in space. From the view of the validity of the numerical simulation results in MATLAB and the simulation efficiency, this paper discussed the reason for the bias existing between three types of turbulence intensity involved in the whole simulation process: simulated turbulence intensity, setting reference turbulence intensity, and theoretical turbulence intensity. Therefore, a novel spectral correction method of a standard deviation compensation coefficient was proposed. The simulation verification of the correction method was carried out based on the Kaimal spectrum recommended by IEC61400-1 by simulating the uniform turbulent wind field in one-dimensional space at the height of the hub of a 15 MW wind turbine and in two-dimensional space in the rotor swept area. The results showed that the spectral correction method proposed in this paper can effectively optimize the turbulence intensity of the simulated wind field, generate more effective simulation points, and significantly improve the simulation efficiency.
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页数：15
相关论文
共 21 条
  • [11] KAIMAL JC, 1972, Q J ROY METEOR SOC, V98, P563, DOI 10.1002/qj.49709841707
  • [12] Simulation of nonstationary stochastic processes by spectral representation
    Liang, Jianwen
    Chaudhuri, Samit Ray
    Shinozuka, Masanobu
    [J]. JOURNAL OF ENGINEERING MECHANICS, 2007, 133 (06) : 616 - 627
  • [13] An efficient space-time based simulation approach of wind velocity field with embedded conditional interpolation for unevenly spaced locations
    Peng, Liuliu
    Huang, Guoqing
    Kareem, Ahsan
    Li, Yongle
    [J]. PROBABILISTIC ENGINEERING MECHANICS, 2016, 43 : 156 - 168
  • [14] Proakis J.G., 2014, Digital signal processing
  • [15] [沈国辉 Shen Guohui], 2013, [空气动力学学报, Acta Aerodynamica Sinica], V31, P69
  • [16] SIMULATION OF MULTIVARIATE AND MULTIDIMENSIONAL RANDOM PROCESSES
    SHINOZUKA, M
    [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1971, 49 (01) : 357 - +
  • [17] Simiu E., 1974, J STRUCT DIV, V100, P203
  • [18] [陶天友 Tao Tianyou], 2017, [工程力学, Engineering Mechanics], V34, P182
  • [19] VONKARMAN T, 1948, P NATL ACAD SCI USA, V34, P530
  • [20] [张文福 ZHANG Wenfu], 2008, [空气动力学学报, Acta Aerodynamica Sinica], V26, P425
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