Fault Diagnosis for Blade Mass Imbalance of Wind Turbines with DFIG Based on Coordinate Transformation
Sheng Xiaoling1,2, Wan Shuting2, Li Yonggang1, Cheng Lifeng2
1.School of Electrical and Electronic Engineering North China Electric Power University Baoding 071003 China 2.School of Energy Power and Mechanical Engineering North China Electric Power University Baoding 071003 China
Abstract Firstly, the electrical characteristics of the doubly-fed induction generator (DFIG) under the blade imbalance fault are analyzed.Furthermore, the stator and rotor currents can be obtained according to the dq coordinate transformation.Then the Hilbert demodulation method is used to process the current signal so that the fault frequency can be highlighted.Finally, the simulation work under Matlab/Simulink and the experiment on the DFIG testing platform are taken for verification.It is shown that, the faulty stator and rotor currents contain the same harmonic component as that of the blade’s rotating frequency.The proposed method is effective to recognize the blade mass imbalance fault and therefore has an engineering application potential.
Sheng Xiaoling,Wan Shuting,Li Yonggang等. Fault Diagnosis for Blade Mass Imbalance of Wind Turbines with DFIG Based on Coordinate Transformation[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 188-197.
[1] GWEC.Global wind report annual market update 2011[R].Bonn:Global Wind Energy Council,2011. [2] Hameed Z,Hong Y S,Cho Y M,et al.Condition monitoring and fault detetion of wind turbines and related algorithms:a review[J].Renewable and Sustainable Energy Reviews,2009,13(1):1-39. [3] 杭俊,张建忠,程明,等.风力发电系统状态监测与故障诊断技术综述[J].电工技术学报,2013,28(4):261-271. Hang Jun,Zhang Jianzhong,Cheng Ming,et al.An overview of condition monitoring and fault diagnostic for wind energy conversion system[J].Transactions of China Electrotechnical Society,2013,28(4):261-271. [4] 蔡新,潘盼,朱杰,等.风力发电机叶片[M].北京:中国水利水电出版社,2014. [5] Ramlau R,Niebsch J.Imbalance estimation without test masses for wind turbines[J].Journal of Solar Energy Engineering,2009,131(1):0110101-0110107. [6] Jiang Dongxiang,Huang Qian,Hong Liangyou.Theoretical and experimental study on wind wheel imbalance for a wind turbine[C]//World Non-Grid-Connected Wind Power and Energy Conference,Nanjing,China,2009:351-355. [7] Zhao Minghao,Jiang Dongxiang,Li Shaohua.Research on fault mechanism of icing of wind turbine blades[C]//World Non-Grid-Connected Wind Power and Energy Conference,Nanjing,China,2009:356-359. [8] Xiang Gong,Wei Qiao.Simulation Investigation of wind turbine imbalance faults[C]//International Conference on Power System Technology,Hangzhou,China,2010:1-7. [9] Caselitz P,Giebhardt J.Rotor condition monitoring for improved operational safety of offshore wind energy converters[J].Journal of Solar Energy Engineering,2005,127(2):253-261. [10]杨涛,任永,刘霞,等.风力机叶轮质量不平衡故障建模及仿真研究[J].机械工程学报,2012,48(6):130-135. Yang Tao,Ren Yong,Liu Xia,et al.Research on the modeling and simulation of wind turbine rotor Imbalance fault[J].Journal of Mechanical Engineering,2012,48(6):130-135. [11]Xiang Gong,Wei Qiao.Imbalance Fault detection of direct-drive wind turbines using generator current signals[J].IEEE Transactions on Energy Conversion,2012,27(2):468-476. [12]杭俊,张建忠,程明,等.直驱永磁同步风电机组叶轮不平衡和绕组不对称的故障诊断[J].中国电机工程学报,2014,34((9):1384-1391. Hang Jun,Zhang Jianzhong,Cheng Ming,et al.Fault diagnosis of blade imbalance and winding asymmetry ofdirect-driven wind turbine with permanent magnet synchronous generator[J].Proceedings of the CSEE,2014,34(9):1384-1391. [13]Niebsch J,Ramlau R,Nguyen T T.Mass and aerodynamic imbalance estimates of wind turbines[J].Energies,2010,3(4):696-710. [14]Martin B,Pierre G,Bertrand R,et al.Models for bearing damage detection induction motors using stator current monitoring[J].IEEE Transactions on Industrial Electronics,2008,55(4):1813-1822. [15]Yang Wenxian,Tavner P J,Wilkinson M.Wind turbine condition monitoring and fault diagnosis using both mechanical and electrical signatures[C]//International Conference on Advanced Intelligent Mechatronics,Xi’an,2008:1296-1301. [16]贺益康,胡家兵,徐烈.并网双馈异步风力发电机运行控制[M].北京:中国电力出版社,2011. [17]张波,颜湘武,王树岐.基于dq变换的三相电压暂降生成方法[J].电工技术学报,2011,26(10):55-61. Zhang Bo,Yan Xiangwu,Wang Shuqi.Method of three-phase voltage sag forming based on dq transformation[J].Transactions of China Electrotechnical Society,2011,26(10):55-61. [18]赵妍,李志民,李天云.一种基于谱峭度的异步电机故障诊断方法[J].电工技术学报,2014,29(5):189-196. Zhao Yan,Li Zhimin,Li Tianyun.A method for fault diagnosis of induction motor based on spectral kurtosis[J].Transactions of China Electrotechnical Society,2014,29(5):189-196.
2016, Vol. 31 
