仿真研究湍流强度、空气密度、偏航误差等风电机组功率输出特性关键影响因素与功率曲线之间的内在关联特性,建立各影响因素与功率输出特性之间的隐含关系子模型。结合风电机组运行数据,基于相关向量信息熵技术,实现风电机组运行功率曲线的构建。基于构建的功率曲线与机组实际输出特性开展年发电量对比,结果表明,基于相关向量信息熵法构建的功率曲线能够实现对风电机组出力特性的真实准确评价,评价误差不超过2%。
Abstract
Simulation is carried out to research the key influencing factors of wind turbine power output characteristics, such as turbulence intensity, air density, yaw error, and also the inner implicit relationship with the power curve, to establish the implicit relationship sub-model, and realize the construction of the wind turbine operating power curve based on the correlation vector information entropy technology and operation data. Comparison of annual energy production is carried between the constructed power curve and the actual output, which shows that construction method based on the correlation vector information entropy can realize the true evaluation of the operating power output characteristics of wind turbine, meanwhile the evaluation error is less than 2%.
关键词
风电机组 /
相关向量 /
信息熵 /
功率曲线构建
Key words
wind turbines /
correlation vector /
information entropy /
power curve construction
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基金
国家重点研发计划项目《大容量风电机组电网友好型控制技术》课题5（课题编号：2018YFB0904005）
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