基于旋转注入的同步磁阻电机电感辨识方案
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摘要
同步磁阻电机(SynRM)运行中电感随电流变化较大,若对其线性化将产生很大的误差,有必要先进行电感辨识。由于电机转子结构的凸极性较大,电流中易产生较大的谐波分量会影响辨识的精度。针对谐波分量导致的误差问题,本文通过旋转电压注入法,提出一种基于定向旋转变换的信号幅值解调方案,该方案无需使用滤波器,避免了滤波器导致辨识结果失真的问题。同时,采用递推离散傅里叶变换(DFT)算法计算静止轴系中的电流正负序分量幅值,该算法运算量小,易于数字实现。最后在5.5kWSynRM实验平台上进行实验,结果证明本文所提方案具有较高的检测精度。
The inductance of synchronous reluctance motor(SynRM) varies with current in operation. If the inductor is linearized during the control process, it will cause a large error on the result.Therefore, it is necessary to identify the inductance of the SynRM. Because the rotor structure of the motor has strong salient polarity, it is easy to genarate the large harmonic components in the current,which will affect the accuracy of inductance identification. Aiming at the error caused by harmonic components, a signal amplitude demodulation scheme based on directional rotation transformation by injecting the rotating voltage is proposed in this paper. The scheme eliminates the need to use filters and avoids the problem of distortion of the identification result due to the filter. At the same time, the recursive DFT is used in the scheme to calculate the amplitude of positive and negative sequence currents in the stationary shafting. The algorithm has the advantages of small computation and easy digital implementation. Finally, the comparative verification experiments were carried out on the5.5 kW SynRM experimental platform. The experimental results show that the experimental process does not depend on the rotor position estimation, and the proposed scheme has higher detection accuracy.
The inductance of synchronous reluctance motor(SynRM) varies with current in operation. If the inductor is linearized during the control process, it will cause a large error on the result.Therefore, it is necessary to identify the inductance of the SynRM. Because the rotor structure of the motor has strong salient polarity, it is easy to genarate the large harmonic components in the current,which will affect the accuracy of inductance identification. Aiming at the error caused by harmonic components, a signal amplitude demodulation scheme based on directional rotation transformation by injecting the rotating voltage is proposed in this paper. The scheme eliminates the need to use filters and avoids the problem of distortion of the identification result due to the filter. At the same time, the recursive DFT is used in the scheme to calculate the amplitude of positive and negative sequence currents in the stationary shafting. The algorithm has the advantages of small computation and easy digital implementation. Finally, the comparative verification experiments were carried out on the5.5 kW SynRM experimental platform. The experimental results show that the experimental process does not depend on the rotor position estimation, and the proposed scheme has higher detection accuracy.
引文
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[10]许胜,费树岷,赵剑锋.同步旋转坐标系中谐波电流分次控制策略[J].电工技术学报,2016,31(16):154-162.Xu Sheng,Fei Shumin,Zhao Jianfeng.Harmonic current frequency dividing control strategy based on synchronous rotating frame[J].Transactions of China Electrotechnical Society,2016,31(16):154-162.
[11]Vandoorn T L,Belie F M D,Vyncke T J,et al.Generation of multisinusoidal test signals for the identification of synchronous-machine parameters by using a voltage-source inverter[J].IEEE Transactions on Industrial Electronics,2010,57(1):430-439.
[12]Bedetti N,Calligaro S,Petrella R.Stand-still selfidentificationof flux characteristics for synchronous reluctance machines using novel saturation approximating function and multiple linear regression[J].IEEE Transactions on Industry Applications,2016,52(4):3083-3092.
[13]Raca D,Garcia P,Reigosa D D,et al.Carrier-signal selection for sensorless control of PM synchronous machines at zero and very low speeds[J].IEEETransactions on Industry Applications,2010,46(1):167-178.
[14]杨健,杨淑英,李浩源,等.基于旋转高频电压注入的永磁同步电机转子初始位置辨识方法[J].电工技术学报,2018,33(15):3547-3555.Yang Jian,Yang Shuying,Li Haoyuan,et al.Initial rotor position estimation for IPMSM based on high frequency rotating voltage injection[J].Transactions of China Electrotechnical Society,2018,33(15):3547-3555.
[15]李浩源,张兴,杨淑英,等.基于旋转高频注入的内置式永磁同步电机初始位置检测算法[J].电工技术学报,2018,33(8):1723-1731.Li Haoyuan,Zhang Xing,Yang Shuying,et al.Adetecting algorithm for initial position of interior permanent magnet synchronous motor based on rotating high frequency injection[J].Transactions of China Electrotechnical Society,2018,33(8):1723-1731.
[16]李浩源,张兴,杨淑英,等.基于高频信号注入的永磁同步电机无传感器控制技术综述[J].电工技术学报,2018,33(12):2653-2664.Li Haoyuan,Zhang Xing,Yang Shuying,et al.Review on sensorless control of permanent magnet synchronous motor based on high-frequency signal injection[J].Transactions of China Electrotechnical Society,2018,33(12):2653-2664.
[17]Dutta R,Rahman M F.A comparative analysis of two test methods of measuring d-and q-axes inductances of interior permanent-magnet machine[J].IEEETransactions on Magnetics,2006,42(11):3712-3718.
[18]韩晓燕,刘秀敏.基于两段卡尔曼滤波的永磁同步电机磁链在线辨识[J].微特电机,2017,45(5):36-39.Han Xiaoyan,Liu Xiumin.Online flux identification of permanent magnetic synchronous motor based on two-stage Kalman filter[J].Small&Special Electrical Machines,2017,45(5):36-39.
[19]Rahman K M,Hiti S.Identification of machine parameters of a synchronous motor[J].IEEE Transactions on Industry Applications,2005,41(2):557-565.
[20]Morimoto S,Sanada M,Takeda Y.Mechanical sensorless drives of IPMSM with online parameter identification[J].IEEE Transactions on Industry Applications,2006,42(5):1241-1248.
[2]游琳娟,吴汉光.磁阻电机参数测定研究[J].微特电机,2001,29(1):29-31.You Linjuan,Wu Hanguang.Detecting parameter of synchronous reluctance motor[J].Small&Special Electrical Machines,2001,29(1):29-31.
[3]张飞,唐任远,陈丽香,等.永磁同步电动机电抗参数研究[J].电工技术学报,2006,21(11):7-10.Zhang Fei,Tang Renyuan,Chen Lixiang,et al.Study of the reactance parameters of permanent magnent synchronous motors[J].Transactions of China Electrotechnical Society,2006,21(11):7-10.
[4]Gieras J F,Santini E,Wing M.Calculation of synchronous reactances of small permanent-magnet alternating-current motors:comparison of analytical approach and finite element method with measurements[J].IEEE Transactions on Magnetics,199834(5):3712-3720.
[5]张健,刘明基,陈伟华.自起动永磁电机电抗参数的测试[J].电机与控制应用,2010,37(8):14-18.Zhang Jian,Liu Mingji,Chen Weihua.Reactance test of line-start permanent magnet synchronous motor[J].Electric Machines&Control,2010,37(8):14-18.
[6]刘金海,陈为,胡金高.永磁同步电机dq电感参数新实验获取法[J].电工技术学报,2014,29(7):97-103.Liu Jinhai,Chen Wei,Hu Jingao.Novel experimental methods of acquiring dq inductance of permanent magnet synchronous motors[J].Transactions of China Electrotechnical Society,2014,29(7):97-103.
[7]武四辈,吴志红,朱元.车用内置式永磁同步电机电感参数辨识方法[J].农业机械学报,2013,44(8):27-32.Wu Sibei,Wu Zhihong,Zhu Yuan.Identification for inductance parameters of IPMSM in vehicle[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(8):27-32.
[8]Cavagnino A,Lazzari M,Profumo F,et al.Axial flux interior PM synchronous motor:parameters identification and steady-state performance measurements[J].IEEE Transactions on Industry Applications,1999,36(6):1581-1588.
[9]李峰,夏超英.考虑磁路饱和的内置式永磁同步电机电感参数旋转辨识算法[J].电工技术学报,2016,31(21):203-211.Li Feng,Xia Chaoying.Inductance parameters identification algorithms of IPMSM under rotating state taking magnetic circuit saturation into account[J].Transactions of China Electrotechnical Society,2016,31(21):203-211.
[10]许胜,费树岷,赵剑锋.同步旋转坐标系中谐波电流分次控制策略[J].电工技术学报,2016,31(16):154-162.Xu Sheng,Fei Shumin,Zhao Jianfeng.Harmonic current frequency dividing control strategy based on synchronous rotating frame[J].Transactions of China Electrotechnical Society,2016,31(16):154-162.
[11]Vandoorn T L,Belie F M D,Vyncke T J,et al.Generation of multisinusoidal test signals for the identification of synchronous-machine parameters by using a voltage-source inverter[J].IEEE Transactions on Industrial Electronics,2010,57(1):430-439.
[12]Bedetti N,Calligaro S,Petrella R.Stand-still selfidentificationof flux characteristics for synchronous reluctance machines using novel saturation approximating function and multiple linear regression[J].IEEE Transactions on Industry Applications,2016,52(4):3083-3092.
[13]Raca D,Garcia P,Reigosa D D,et al.Carrier-signal selection for sensorless control of PM synchronous machines at zero and very low speeds[J].IEEETransactions on Industry Applications,2010,46(1):167-178.
[14]杨健,杨淑英,李浩源,等.基于旋转高频电压注入的永磁同步电机转子初始位置辨识方法[J].电工技术学报,2018,33(15):3547-3555.Yang Jian,Yang Shuying,Li Haoyuan,et al.Initial rotor position estimation for IPMSM based on high frequency rotating voltage injection[J].Transactions of China Electrotechnical Society,2018,33(15):3547-3555.
[15]李浩源,张兴,杨淑英,等.基于旋转高频注入的内置式永磁同步电机初始位置检测算法[J].电工技术学报,2018,33(8):1723-1731.Li Haoyuan,Zhang Xing,Yang Shuying,et al.Adetecting algorithm for initial position of interior permanent magnet synchronous motor based on rotating high frequency injection[J].Transactions of China Electrotechnical Society,2018,33(8):1723-1731.
[16]李浩源,张兴,杨淑英,等.基于高频信号注入的永磁同步电机无传感器控制技术综述[J].电工技术学报,2018,33(12):2653-2664.Li Haoyuan,Zhang Xing,Yang Shuying,et al.Review on sensorless control of permanent magnet synchronous motor based on high-frequency signal injection[J].Transactions of China Electrotechnical Society,2018,33(12):2653-2664.
[17]Dutta R,Rahman M F.A comparative analysis of two test methods of measuring d-and q-axes inductances of interior permanent-magnet machine[J].IEEETransactions on Magnetics,2006,42(11):3712-3718.
[18]韩晓燕,刘秀敏.基于两段卡尔曼滤波的永磁同步电机磁链在线辨识[J].微特电机,2017,45(5):36-39.Han Xiaoyan,Liu Xiumin.Online flux identification of permanent magnetic synchronous motor based on two-stage Kalman filter[J].Small&Special Electrical Machines,2017,45(5):36-39.
[19]Rahman K M,Hiti S.Identification of machine parameters of a synchronous motor[J].IEEE Transactions on Industry Applications,2005,41(2):557-565.
[20]Morimoto S,Sanada M,Takeda Y.Mechanical sensorless drives of IPMSM with online parameter identification[J].IEEE Transactions on Industry Applications,2006,42(5):1241-1248.