An Improved Off-Line Identification Method of Asynchronous Motor Parameters for Electric Vehicles

doi:10.11985/2017.05.005

Abstract

Abstract:

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 single-phase 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.

Key words: Asynchronous motor, parameter offline identification, vector control, reactive power

CLC Number:

TM921

Wenfan Shi,Hongping Jia,Jianhu Yan,Xing Yu. An Improved Off-Line Identification Method of Asynchronous Motor Parameters for Electric Vehicles[J]. Journal of Electrical Engineering, 2017, 12(5): 28-34.

Figures/Tables 13

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

Tab.

References 15

[1]	Zeraoulia M, Benbouzid M El H, Diallo D. Electricmotor drive selection issues for HEV propulsionsystems: a comparative study[J]. IEEE Transactionson Vehicular Technology, 2006,55(6):1756-1764.
[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 off-line 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. Neural-network-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]	陈永飞, 雷良育, 胡烨, 等. 基于Ansoft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.

电机参数	实际值	实验值	仿真值
R_s/Ω	0.0307	0.0298	0.0302
R_r/Ω	0.048	0.0476	0.0473
L_ls/mH	0.05	0.048	0.049
L_m/mH	1.268	1.276	1.225