V-型端齿削弱永磁直线电机端部磁阻力波动方法
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摘要
动电枢型永磁直线电机由于铁心开断,在两个纵向端部产生了较大的磁阻力波动,降低了系统的伺服性能。该文根据端部磁阻力的特征,提出电枢铁心V-型端部结构消除纵向端部磁阻力波动的方法。通过对V-型端面微元化推导端面磁阻力的合力,总结V-型深度对端部磁阻力波动的影响规律。为简化生产工艺,分析阶梯结构的准V-型端齿削弱端部磁阻力的可行性。最后,以齿槽力较小的12槽11极电机进为例,采用有限元仿真和实验验证了所提方法的正确性和有效性。
As the iron core disconnects in the end, the permanent magnet linear motor with a moving armature brings a large fluctuation of the end effect detent force in the two longitudinal ends, and aggravates the servo performance. Due to the characteristics of the end effect detent force, this article proposes a method to eliminate the fluctuation of the longitudinal end effect detent force with the V-shaped iron core in the ends. Through micro element of the V-shaped end face to deduce composition of forces of the end detent force, the law of the end detent force fluctuation by the depth of V-shaped is summarized. Finally, simulations and experiments are conducted on a 12 slot 11 pole PMLM with weak slot effects, experimental results are basically consistent with the finite element simulation results, which verifies the correctness and the effectiveness of the proposed method.
As the iron core disconnects in the end, the permanent magnet linear motor with a moving armature brings a large fluctuation of the end effect detent force in the two longitudinal ends, and aggravates the servo performance. Due to the characteristics of the end effect detent force, this article proposes a method to eliminate the fluctuation of the longitudinal end effect detent force with the V-shaped iron core in the ends. Through micro element of the V-shaped end face to deduce composition of forces of the end detent force, the law of the end detent force fluctuation by the depth of V-shaped is summarized. Finally, simulations and experiments are conducted on a 12 slot 11 pole PMLM with weak slot effects, experimental results are basically consistent with the finite element simulation results, which verifies the correctness and the effectiveness of the proposed method.
引文
[1]黄磊,余海涛,胡敏强,等.用于电磁弹射的容错型初级永磁直线电机特性[J].电工技术学报,2012,27(3):119-127.Huang Lei,Yu Haitao,Hu Minqiang,et al.Characteristics of a primary permanent magnet linear machine with fault-tolerant capability for electromagnetic launch[J].Transactions of China Electrotechnical Society,2012,27(3):119-127(in Chinese).
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[10]Zhu Y W,Lee S G,Chung K S,et al.Investigation of auxiliary poles design criteria on reduction of end effect of detent force for PMLSM[J].IEEE Transactions on Magnetics,2009,45(6):2863-2866.
[11]寇宝泉,张赫,郭守仑,等.辅助极一体式永磁同步直线电机端部定位力抑制技术[J].电工技术学报,2015,30(6):106-113.Kou Baoquan,Zhang He,Guo Shoulun,et al.End effect detent force reduction for permanent magnet linear synchronous motors with auxiliary poles one-piece structure[J].Transactions of China Electrotechnical Society,2015,30(6):106-113(in Chinese).
[12]王昊,张之敬,刘成颖.永磁直线同步电机纵向端部效应补偿方法[J].中国电机工程学报,2010,30(36):46-52.Wang Hao,Zhang Zhijing,Liu Chengying.Compensation methods of longitudinal end effects in permanent-magnet linear synchronous motor[J].Proceedings of the CSEE,2010,30(36):46-52(in Chinese).
[13]Xu X Z,Wang X D,Si J K,et al.Detent force analysis and optimization for vertical permanent-magnet linear synchronous motor with fractional-slot windings[J].Journal of Computers,2013,8(3):756-763.
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[15]夏加宽,沈丽,彭兵,等.永磁直线伺服电机端部法向力波动分相补偿控制[J].组合机床与自动化加工技术,2014(3):73-77.Xia Jiakuan,Shen Li,Peng Bing,et al.Phase-splitting compensation to the end normal force ripple of permanent magnet linear servo motor[J].Modular Machine Tool&Automatic Manufacturing Technique,2014(3):73-77(in Chinese).
[16]彭兵,刘铁法,张囡,等.凹型端齿削弱永磁直线电机端部力波动方法[J].电工技术学报,2015,30(7):119-124.Peng Bing,Liu Tiefa,Zhang Nan,et al.A method for reducing the end effect force fluctuation by the concave profile end-tooth in permanent magnet linear motors[J].Transactions of China Electrotechnical Society,2015,30(7):119-124(in Chinese).
[17]Li A L,Ma B M,Chen C Q.Detent force analysis in permanent magnet linear synchronous motor considering longitudinal end effects[C]//2012 15th International Conference on Electrical Machines and Systems(ICEMS).Sapporo,Japan:IEEE,2012:1-5.
[18]Cai J J,Lu Q F,Huang X Y,et al.Thrust ripple of a permanent magnet LSM with step skewed magnets[J].IEEE Transactions on Magnetics,2012,48(11):4666-4669.
[19]彭兵,张囡,夏加宽,等.永磁直线电机端部效应力的解析分析[J].中国电机工程学报,2016,36(2):547-553.Peng Bing,Zhang Nan,Xia Jiakuan,et al.Analytical calculation for end effect forces in permanent magnet linear motors[J].Proceedings of the CSEE,2016,36(2):547-553(in Chinese).
[20]王昊,张之敬,刘成颖.永磁直线同步电机定位力分析与实验研究[J].中国电机工程学报,2010,30(15):58-63.Wang Hao,Zhang Zhijing,Liu Chengying.Detent force analysis and experiment for permanent magnet linear synchronous motor[J].Proceedings of the CSEE,2010,30(15):58-63(in Chinese).
[2]Edwards J D,Proverbs S J O.Theory and performance of segmental secondary linear hybrid synchronous motors[J].IET Electric Power Applications,2010,4(7):547-558.
[3]李立毅,唐勇斌,刘家曦,等.多种群遗传算法在无铁心永磁直线同步电机优化设计中的应用[J].中国电机工程学报,2013,33(15):69-77.Li Liyi,Tang Yongbin,Liu Jiaxi,et al.Application of the multiple population genetic algorithm in optimum design of air-core permanent magnet linear synchronous motors[J].Proceedings of the CSEE,2013,33(15):69-77(in Chinese).
[4]陈梁远,李黎川.压缩机用直线电机及其关键技术发展综述[J].中国电机工程学报,2013,33(15):52-68.Chen Liangyuan,Li Lichuan.Development of the linear motor and its key technologies for compressors[J].Proceedings of the CSEE,2013,33(15):52-68(in Chinese).
[5]韩雪岩,祁坤,张哲,等.永磁同步直线电机磁阻力分析及抑制措施[J].电工技术学报,2015,30(6):70-76.Han Xueyan,Qi Kun,Zhang Zhe,et al.Analysis and suppression measures of magnetic resistance force in permanent magnet linear synchronous motors[J].Transactions of China Electrotechnical Society,2015,30(6):70-76(in Chinese).
[6]Zhu Y W,Koo D H,Cho Y H.Detent force minimization of permanent magnet linear synchronous motor by means of two different methods[J].IEEE Transactions on Magnetics,2008,44(11):4345-4348.
[7]Zhu Z Q,Xia Z P,Howe D,et al.Reduction of cogging force in slotless linear permanent magnet motors[J].IEE Proceedings-Electric Power Applications,1997,144(4):277-282.
[8]徐月同,傅建中,陈子辰.永磁直线同步电机推力波动优化及实验研究[J].中国电机工程学报,2005,25(12):122-126.Xu Yuetong,Fu Jianzhong,Chen Zichen.Thrust ripple optimization and experiment for PMLSM[J].Proceedings of the CSEE,2005,25(12):122-126(in Chinese).
[9]潘开林,傅建中,陈子辰.永磁直线同步电机的磁阻力分析及其最小化研究[J].中国电机工程学报,2004,24(4):112-115.Pan Kailin,Fu Jianzhong,Chen Zichen.Detent force analysis and reduction of PMLSM[J].Proceedings of the CSEE,2004,24(4):112-115(in Chinese).
[10]Zhu Y W,Lee S G,Chung K S,et al.Investigation of auxiliary poles design criteria on reduction of end effect of detent force for PMLSM[J].IEEE Transactions on Magnetics,2009,45(6):2863-2866.
[11]寇宝泉,张赫,郭守仑,等.辅助极一体式永磁同步直线电机端部定位力抑制技术[J].电工技术学报,2015,30(6):106-113.Kou Baoquan,Zhang He,Guo Shoulun,et al.End effect detent force reduction for permanent magnet linear synchronous motors with auxiliary poles one-piece structure[J].Transactions of China Electrotechnical Society,2015,30(6):106-113(in Chinese).
[12]王昊,张之敬,刘成颖.永磁直线同步电机纵向端部效应补偿方法[J].中国电机工程学报,2010,30(36):46-52.Wang Hao,Zhang Zhijing,Liu Chengying.Compensation methods of longitudinal end effects in permanent-magnet linear synchronous motor[J].Proceedings of the CSEE,2010,30(36):46-52(in Chinese).
[13]Xu X Z,Wang X D,Si J K,et al.Detent force analysis and optimization for vertical permanent-magnet linear synchronous motor with fractional-slot windings[J].Journal of Computers,2013,8(3):756-763.
[14]沈丽.高精度永磁直线伺服电机法向力波动分析与抑制方法研究[D].沈阳:沈阳工业大学,2014.Shen Li.Research on normal force ripple of permanent magnet linear servo motor and inhibition method[D].Shenyang:Shenyang University of Technology,2014(in Chinese).
[15]夏加宽,沈丽,彭兵,等.永磁直线伺服电机端部法向力波动分相补偿控制[J].组合机床与自动化加工技术,2014(3):73-77.Xia Jiakuan,Shen Li,Peng Bing,et al.Phase-splitting compensation to the end normal force ripple of permanent magnet linear servo motor[J].Modular Machine Tool&Automatic Manufacturing Technique,2014(3):73-77(in Chinese).
[16]彭兵,刘铁法,张囡,等.凹型端齿削弱永磁直线电机端部力波动方法[J].电工技术学报,2015,30(7):119-124.Peng Bing,Liu Tiefa,Zhang Nan,et al.A method for reducing the end effect force fluctuation by the concave profile end-tooth in permanent magnet linear motors[J].Transactions of China Electrotechnical Society,2015,30(7):119-124(in Chinese).
[17]Li A L,Ma B M,Chen C Q.Detent force analysis in permanent magnet linear synchronous motor considering longitudinal end effects[C]//2012 15th International Conference on Electrical Machines and Systems(ICEMS).Sapporo,Japan:IEEE,2012:1-5.
[18]Cai J J,Lu Q F,Huang X Y,et al.Thrust ripple of a permanent magnet LSM with step skewed magnets[J].IEEE Transactions on Magnetics,2012,48(11):4666-4669.
[19]彭兵,张囡,夏加宽,等.永磁直线电机端部效应力的解析分析[J].中国电机工程学报,2016,36(2):547-553.Peng Bing,Zhang Nan,Xia Jiakuan,et al.Analytical calculation for end effect forces in permanent magnet linear motors[J].Proceedings of the CSEE,2016,36(2):547-553(in Chinese).
[20]王昊,张之敬,刘成颖.永磁直线同步电机定位力分析与实验研究[J].中国电机工程学报,2010,30(15):58-63.Wang Hao,Zhang Zhijing,Liu Chengying.Detent force analysis and experiment for permanent magnet linear synchronous motor[J].Proceedings of the CSEE,2010,30(15):58-63(in Chinese).