一种改进的电动汽车用异步电机参数离线辨识方法研究
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摘要
本文提出了一种异步电机参数离线辨识的改进算法。对传统直流实验进行改进,得到等效的控制电路来完成定子电阻的辨识。然后利用单相交流堵转实验来辨识定子漏感和转子电阻。在Vif空载实验中,采用计算无功功率来辨识电机互感的方法,避免了传统空载实验中复杂的FFT计算过程。最后,在一台额定功率为3.5kW的异步电机上进行了参数辨识的仿真与实验研究。结果表明,本文所提出的方法在工程应用中简易可行,辨识得到的电机参数具有较高的准确性。
This paper presents an improved algorithm for off-line identification of asynchronous motor parameters.The traditional DC experiment is improved to obtain the equivalent control circuit to realize the stator resistance identification.And then the singlephase AC locked rotor experiment is used to identify the stator leakage inductance and rotor resistance.In the V/f no load experiment,the motor mutual inductance is identified by calculating the reactive power to avoid the complex FFT calculation in the traditional no-load experiments.Finally the simulation and experiment of parameter identification areimplementedfor a 3.5kW asynchronous motor respectively.The results show that this presented method is simple and feasible in engineering control application and has higher precision.
This paper presents an improved algorithm for off-line identification of asynchronous motor parameters.The traditional DC experiment is improved to obtain the equivalent control circuit to realize the stator resistance identification.And then the singlephase AC locked rotor experiment is used to identify the stator leakage inductance and rotor resistance.In the V/f no load experiment,the motor mutual inductance is identified by calculating the reactive power to avoid the complex FFT calculation in the traditional no-load experiments.Finally the simulation and experiment of parameter identification areimplementedfor a 3.5kW asynchronous motor respectively.The results show that this presented method is simple and feasible in engineering control application and has higher precision.
引文
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[15]贺艳晖,王跃,王兆安.异步电机参数离线辨识改进算法[J].电工技术学报,2011,26(6):73-80.He Yanhui,Wang Yue,Wang Zhao'an.An improved off-line parameter identification algorithm for induction motors[J].Transactions of China Electrotechnical Society,2011,26(6):73-80.
[2]王明渝,冼成瑜,慧娅倩.感应电动机矢量控制参数离线辨识技术[J].电工技术学报,2006,21(8):90-96.Wang Mingyu,Xian Chengyu,Hui Yaqian.An offline parameter estimation technique for vector controlled induction machine drive[J].Transactions of China Electrotechnical Society,2006,21(8):90-96.
[3]陈康平,曾岳南,李海波,等.基于TMS320F2812的异步电机参数离线辨识系统[J].电机与控制应用,2013,40(8):5-8.Chen Kangping,Zeng Yuenan,Li Haibo,et al.System of off-line parameter identification for AC motor based on TMS320F2812[J].Electric Machines&Control Application,2013,40(8):5-8.
[4]Toliyat H A,Wlas M,Krzemiriski Z.Neuralnetwork-based parameter estimations of induction motors[J].IEEE Transaction on Industrial Electronics,2008,55(4):1783-1794.
[5]Liaw C M,Wang J B,Chang Y C.A fuzzy adapted field-oriented mechanism for induction motor drive[J].IEEE Transactions on Energy Conversion,2006,11(1):76-83.
[6]Sundareswaran K,Shyam H N,Palani S,et al.Induction motor parameter estimation using hybrid genetic algorithm[C].IEEE Region 10 and the Third International Conference on Industrial and Information Systems,Kharagpur,2008:1-6.
[7]Suman M,Chandan C,Yoichi H,et al.Model reference adaptive controller-based rotor resistance and speed estimation techniques for vector controlled induction motor drive utilizing reactive power[J].IEEE Transactions on Industrial Electronics,2008,55(2):594-601.
[8]金海,黄进.基于模型参考方法的感应电机磁链的自适应观测及参数辨识[J].电工技术学报,2006,21(1):65-69.Jin Hai,Huang Jin.Adaptive flux estimation and parameters identification of induction motors based on model reference approach[J].Transactions of China Electrotechnical Society,2006,21(1):65-69.
[9]李建军,盛洁波,王翠,等.异步电机定转子参数的辨识方法研究[J].电工技术学报,2006,21(1):70-74.Li Jianjun,Sheng Jiebo,Wang Cui,et al.Research on parameter identification method for induction motor[J].Transactions of China Electrotechnical Society,2006,21(1):70-74.
[10]陈水飞,雷良育,胡烨,等.基于Ansofl电动汽车用轮毂电动机电磁场分析[J].电气应用,2016,35(3):77-82.
[11]余功军,钟彦儒,杨耕.无速度传感器矢量控制系统中的电机参数辨识[J].电气传动,1999,29(1):7-10.Yu Gongjun,Zhong Yanru,Yang Geng.Parameter identification of induction motor in sensor-less vector control inverter[J].Electric Drive,1999,29(1):7-10.
[12]Lin Y N,Chen C L.Automatic IM parameter measurement under sensorless field-oriented control[J].IEEE Transactions on Industry Electronics,1999,46(1):111-118.
[13]刘洋,赵金,王庆义.间接矢量控制系统中的异步电机参数辨识[J].电工技术学报,2008,23(7):21-26.Liu Yang,Zhao Jin,Wang Qingyi.An off-line parameter identification method for indirect vector controlled induction motor drive[J].Transactions of China Electrotechnical Society,2008,23(7):21-26.
[14]罗慧,刘军峰,万淑芸.感应电机参数的离线辨识[J].电气传动,2006,36(8):16-21.Luo Hui,Liu Junfeng,Wan Shuyun.Off-line identification of induction motor parameter[J].Electric Drive,2006,36(8):16-21.
[15]贺艳晖,王跃,王兆安.异步电机参数离线辨识改进算法[J].电工技术学报,2011,26(6):73-80.He Yanhui,Wang Yue,Wang Zhao'an.An improved off-line parameter identification algorithm for induction motors[J].Transactions of China Electrotechnical Society,2011,26(6):73-80.