基于离散度分析的风电机组功率曲线绘制方法研究
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摘要
基于IEC 61400-12-1国际标准提出一种基于概率和离散度的数据处理法。该方法依据风速-功率数据对在坐标系内的分布状态,采用完全纵向滤波和分段滤波对运行数据中的异常点进行去除,保留更为符合机组实际出力特性的数据主带,从而使绘制出的功率曲线更为精确。该方法可克服以往人工去除异常点费时费力,标准不统一的缺点,并以某风电场风电机组的实际运行数据为例对方法的有效性进行验证。
A data processing method based on probability and dispersion is proposed depended on the IEC 61400-12-1 international standard. According to the distribution characteristics of the wind speed-power data points in the coordinate system,the complete vertical filtering method and the segment filtering method are used to remove the abnormal data points from the raw operating data. And the normal data points which can reflect the wind turbine power output characteristics form the main band and are used to draw the power curve with high accuracy. The power curve drawing method proposed in this paper overcomes the drawbacks of the manual removal of abnormal data points which lacks uniform standard and is time consuming. The effectiveness of the method is verified with the actual operating data of a wind farm.
A data processing method based on probability and dispersion is proposed depended on the IEC 61400-12-1 international standard. According to the distribution characteristics of the wind speed-power data points in the coordinate system,the complete vertical filtering method and the segment filtering method are used to remove the abnormal data points from the raw operating data. And the normal data points which can reflect the wind turbine power output characteristics form the main band and are used to draw the power curve with high accuracy. The power curve drawing method proposed in this paper overcomes the drawbacks of the manual removal of abnormal data points which lacks uniform standard and is time consuming. The effectiveness of the method is verified with the actual operating data of a wind farm.
引文
[1] IEC 61400-12-1-2005, Powerperformancemeasurements of electricity producing wind turbines[S].
[2]蔡纯,张秋生.风力发电机组功率曲线的修正[J].广东电力,2003,16(1):17—19.[2] Cai Cun,Zhang Qiusheng. Correction to power curves ofwind-driven generator sets[J]. Guangdong ElectricPower,2003,16(1):17—19.
[3]黎孟岩,刘兴杰,米增强.风力发电机组功率曲线建模方法研究[J].云南电力技术,2012,40(3):1—5.[3] Li Mengyan, Liu Xingjie, Mi Zengqiang. Modelingmethod of power curve of wind turbine[J]. YunnanElectric Power,2012,40(3):1—5.
[4]余洋,刘永光,董胜元.基于运行数据的风电场等效建模方法比较[J].电网与清洁源,2012,7(25):53—56.[4] Yu Yang, Liu Yonghui, Dong Shengyuan. Windturbine power performance based on the operation data[J]. Power System and Clean Energy,2012,7(25):53—56.
[5]芮晓明,张穆勇,霍娟.基于性能可靠性的风电机组功率曲线评定新方法[J].动力工程学报,2014,9(34):742—747.[5] Rui Xiaoming, Zhang Muyong, Huo Juan. A newperformance reliability-based method for ower curveassessment of wind turbine[J]. Journal of Chinese Socityof Power Engineering,2014,9(34):742—747.
[6] GB/T18451.2—2003,风力发电机组功率特性试验[S].
[7]马平,刘昌华.风力发电机组功率曲线的验证.可再生能源,2008,6(26):82—84.[7] Ma Ping,Liu Changhua. Validation on the power curve of wind power unit[J]. Renewable Energy Resources,2008,6(26):82—84.
[8]王钤,潘险险,陈迎,等.基于实测数据的风电场风速-功率模型的研究[J].电力系统保护与控制,2014,2(42):23—27.[8] Wang Qian,Pan Xianxian,Chen Ying,et al. Study of wind speed-active power model for wind farm based onmeasured data[J]. Power System and Clean Energy,2014,2(42):23—27.
[9] Shokrzadeh S,Jozani M J,Bibeau E. Wind turbine power curve modeling using advanced parametric and nonparametric methods[J]. Sustain Energy,2014,6(26):1262—1269.
[10] Lydia M. Advanced algorithms for wind turbine power curve modeling[J]. Sustain Energy,2013,3(4):827—835.
[11]杨旭华,薛文亮,包玲玲. IEC标准在风机实际功率曲线测定中的应用[J].电网与清洁能源,2012,5(28):87—91.[11] Yang Xuhua,Xue Wenliang,Bao Lingling. Application of IEC standards in the measurement of practical power curve of wind turbine generator[J]. Power System and Clean Energy,2012,5(28):87—91.
[2]蔡纯,张秋生.风力发电机组功率曲线的修正[J].广东电力,2003,16(1):17—19.[2] Cai Cun,Zhang Qiusheng. Correction to power curves ofwind-driven generator sets[J]. Guangdong ElectricPower,2003,16(1):17—19.
[3]黎孟岩,刘兴杰,米增强.风力发电机组功率曲线建模方法研究[J].云南电力技术,2012,40(3):1—5.[3] Li Mengyan, Liu Xingjie, Mi Zengqiang. Modelingmethod of power curve of wind turbine[J]. YunnanElectric Power,2012,40(3):1—5.
[4]余洋,刘永光,董胜元.基于运行数据的风电场等效建模方法比较[J].电网与清洁源,2012,7(25):53—56.[4] Yu Yang, Liu Yonghui, Dong Shengyuan. Windturbine power performance based on the operation data[J]. Power System and Clean Energy,2012,7(25):53—56.
[5]芮晓明,张穆勇,霍娟.基于性能可靠性的风电机组功率曲线评定新方法[J].动力工程学报,2014,9(34):742—747.[5] Rui Xiaoming, Zhang Muyong, Huo Juan. A newperformance reliability-based method for ower curveassessment of wind turbine[J]. Journal of Chinese Socityof Power Engineering,2014,9(34):742—747.
[6] GB/T18451.2—2003,风力发电机组功率特性试验[S].
[7]马平,刘昌华.风力发电机组功率曲线的验证.可再生能源,2008,6(26):82—84.[7] Ma Ping,Liu Changhua. Validation on the power curve of wind power unit[J]. Renewable Energy Resources,2008,6(26):82—84.
[8]王钤,潘险险,陈迎,等.基于实测数据的风电场风速-功率模型的研究[J].电力系统保护与控制,2014,2(42):23—27.[8] Wang Qian,Pan Xianxian,Chen Ying,et al. Study of wind speed-active power model for wind farm based onmeasured data[J]. Power System and Clean Energy,2014,2(42):23—27.
[9] Shokrzadeh S,Jozani M J,Bibeau E. Wind turbine power curve modeling using advanced parametric and nonparametric methods[J]. Sustain Energy,2014,6(26):1262—1269.
[10] Lydia M. Advanced algorithms for wind turbine power curve modeling[J]. Sustain Energy,2013,3(4):827—835.
[11]杨旭华,薛文亮,包玲玲. IEC标准在风机实际功率曲线测定中的应用[J].电网与清洁能源,2012,5(28):87—91.[11] Yang Xuhua,Xue Wenliang,Bao Lingling. Application of IEC standards in the measurement of practical power curve of wind turbine generator[J]. Power System and Clean Energy,2012,5(28):87—91.