双边永磁励磁游标电机运行原理及电磁特性仿真研究
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摘要
为了进一步提高电机的功率密度和转矩密度,以满足直驱系统低速、大转矩的运行工况,提出一种新型双边永磁励磁游标(DPMEV)电机。该电机定子和转子上均放置有永磁体,利用定、转子齿对气隙磁导的双向调制作用,将两组永磁体产生的永磁磁场调制成少极数、高转速的有效谐波磁场,并根据有效谐波磁场设计电枢绕组,从而使定、转子上两组永磁体同时与电枢绕组耦合。介绍了DPMEV电机的拓扑结构。基于等效磁路法,对该电机的气隙磁通密度进行了分析,表明该电机可利用气隙磁导的双向调制作用,实现电机功率密度和转矩密度的有效提高。在深入分析电机工作原理的基础上,通过有限元法对DPMEV电机进行了计算和分析,验证了该电机具有适用于直驱系统的高功率密度和高转矩密度特性。
A new dual-permanent-magnet excited vernier(DPMEV) machine was proposed, in which the power density and torque density were further improved to meet the low speed and high torque operating conditions of direct drive systems. Two sets of permanent magnets(PMs) were placed on stator and rotor, respectively, and the PM magnetic field could be modulated to effective harmonic magnetic field components with low pole-pair number and high speed by the dual-modulation effect of stator and rotor teeth. Then the armature winding was designed according to the effective harmonic magnetic fields to achieve the coupling between the magnetic fields excited by two sets of PMs and armature windings. The topology of DPMEV machine was introduced. The air gap flux density was analyzed based on the equivalent magnetic circuit method, which proved the improvement potentiality of power density and torque density based on the dual-modulation effect. The performances of DPMEV machine were calculated and analyzed by the finite element method, verifying the advantages of high power density and high torque density which were suitable for the direct drive system.
A new dual-permanent-magnet excited vernier(DPMEV) machine was proposed, in which the power density and torque density were further improved to meet the low speed and high torque operating conditions of direct drive systems. Two sets of permanent magnets(PMs) were placed on stator and rotor, respectively, and the PM magnetic field could be modulated to effective harmonic magnetic field components with low pole-pair number and high speed by the dual-modulation effect of stator and rotor teeth. Then the armature winding was designed according to the effective harmonic magnetic fields to achieve the coupling between the magnetic fields excited by two sets of PMs and armature windings. The topology of DPMEV machine was introduced. The air gap flux density was analyzed based on the equivalent magnetic circuit method, which proved the improvement potentiality of power density and torque density based on the dual-modulation effect. The performances of DPMEV machine were calculated and analyzed by the finite element method, verifying the advantages of high power density and high torque density which were suitable for the direct drive system.
引文
[1] LIU Y L, NIU S X, FU W N. A novel multiphase brushless power-split transmission system for wind power generation[J].IEEE Transactions on Magnetics,2016,52(2): 8100907.
[2] LUO X, LIU S X. A novel contra-rotating power split transmission system for wind power generation and its dual MPPT control strategy[J].IEEE Transactions on Power Electronics,2017,32(9): 6924.
[3] LIU G H, YANG J Q, ZHAO W X. Design and analysis of a new fault-tolerant permanent-magnet vernier machine for electric vehicles[J].IEEE Transactions on Magnetics,2012,48(11): 4176.
[4] LIU X B, ZHONG X, DU Y, et al. A new magnetic field modulation type of brushless double-fed machine[J].IEEE Transactions on Applied Superconductivity,2018,28(3): 5206505.
[5] LI D W, ZOU T J, QU R H. Analysis of fractional-slot concentrated winding PM vernier machine with regular open-slot stators[J].IEEE Transactions on Industry Applications,2018,54(2): 1320.
[6] 张东,邹国棠,江建中,等.新型外转子磁齿轮复合电机的设计与研究[J].中国电机工程学报,2008,28(30): 67.
[7] 蒋一诚,刘国海,赵文祥,等.新型磁齿轮复合电机的设计与分析[J].微电机,2014,47(3): 24.
[8] 杜怿,邹春花,朱孝勇,等.初级永磁型游标直线电机绕组链接及其电磁特性比较研究[J].电工技术学报,2017,32(3): 130.
[9] JIAN L, CHAU K T, GONG Y, et al. Comparison of coaxial magnetic gears with different topologies[J].IEEE Transactions on Magnetics,2009,45(10): 4526.
[10] FU W N, HO S L. A quantitative comparative analysis of a novel flux-modulated permanent-magnet motor for low-speed drive[J].IEEE Transactions on Magnetics,2010,46(1): 127.
[11] LI J G, CHAU K T, JIANG J Z, et al. A new efficient permanent-magnet vernier machine for wind power generation[J].IEEE Transactions on Magnetics,2010,46(6): 1475.
[12] 李祥林,程明,邹国棠,等.聚磁式场调制永磁风力发电机工作原理与静态特性[J].电工技术学报,2014,29(11): 1.
[13] LIAO Y F, LIANG F, LIPO T A. A novel permanent magnet motor with doubly salient structure[J].IEEE Transactions on Industry Applications,1995,31(5): 1069.
[14] 张建忠,程明,朱孝勇,等.新型整距绕组双凸极永磁电机工作原理及特性[J].电工技术学报,2009,24(2): 1.
[15] 陈云云,朱孝勇,全力,等.基于参数敏感度的双凸极永磁型双定子电机的优化设计和性能分析[J].电工技术学报,2017,32(8): 160.
[16] DEODHAR R P, ANDERSSON S, BOLDEA I. The flux-reversal machine: a new brushless doubly-salient permanent-magnet machine[J].IEEE Transactions on Industry Applications,1997,33(4): 925.
[17] ZHU Z Q, CHEN J T. Advanced flux-switching permanent magnet brushless machines[J].IEEE Transactions on Magnetics,2010,46(6): 1447.
[18] DU Y, XIAO F, HUA W, et al. Comparison of flux-switching PM motors with different winding configurations using magnetic gearing principle[J].IEEE Transactions on Magnetics,2016,52(5): 8201908.
[19] 徐妲,林明耀,付兴贺,等.混合励磁轴向磁场磁通切换型永磁电机静态特性[J].电工技术学报,2015,30(2): 58.
[2] LUO X, LIU S X. A novel contra-rotating power split transmission system for wind power generation and its dual MPPT control strategy[J].IEEE Transactions on Power Electronics,2017,32(9): 6924.
[3] LIU G H, YANG J Q, ZHAO W X. Design and analysis of a new fault-tolerant permanent-magnet vernier machine for electric vehicles[J].IEEE Transactions on Magnetics,2012,48(11): 4176.
[4] LIU X B, ZHONG X, DU Y, et al. A new magnetic field modulation type of brushless double-fed machine[J].IEEE Transactions on Applied Superconductivity,2018,28(3): 5206505.
[5] LI D W, ZOU T J, QU R H. Analysis of fractional-slot concentrated winding PM vernier machine with regular open-slot stators[J].IEEE Transactions on Industry Applications,2018,54(2): 1320.
[6] 张东,邹国棠,江建中,等.新型外转子磁齿轮复合电机的设计与研究[J].中国电机工程学报,2008,28(30): 67.
[7] 蒋一诚,刘国海,赵文祥,等.新型磁齿轮复合电机的设计与分析[J].微电机,2014,47(3): 24.
[8] 杜怿,邹春花,朱孝勇,等.初级永磁型游标直线电机绕组链接及其电磁特性比较研究[J].电工技术学报,2017,32(3): 130.
[9] JIAN L, CHAU K T, GONG Y, et al. Comparison of coaxial magnetic gears with different topologies[J].IEEE Transactions on Magnetics,2009,45(10): 4526.
[10] FU W N, HO S L. A quantitative comparative analysis of a novel flux-modulated permanent-magnet motor for low-speed drive[J].IEEE Transactions on Magnetics,2010,46(1): 127.
[11] LI J G, CHAU K T, JIANG J Z, et al. A new efficient permanent-magnet vernier machine for wind power generation[J].IEEE Transactions on Magnetics,2010,46(6): 1475.
[12] 李祥林,程明,邹国棠,等.聚磁式场调制永磁风力发电机工作原理与静态特性[J].电工技术学报,2014,29(11): 1.
[13] LIAO Y F, LIANG F, LIPO T A. A novel permanent magnet motor with doubly salient structure[J].IEEE Transactions on Industry Applications,1995,31(5): 1069.
[14] 张建忠,程明,朱孝勇,等.新型整距绕组双凸极永磁电机工作原理及特性[J].电工技术学报,2009,24(2): 1.
[15] 陈云云,朱孝勇,全力,等.基于参数敏感度的双凸极永磁型双定子电机的优化设计和性能分析[J].电工技术学报,2017,32(8): 160.
[16] DEODHAR R P, ANDERSSON S, BOLDEA I. The flux-reversal machine: a new brushless doubly-salient permanent-magnet machine[J].IEEE Transactions on Industry Applications,1997,33(4): 925.
[17] ZHU Z Q, CHEN J T. Advanced flux-switching permanent magnet brushless machines[J].IEEE Transactions on Magnetics,2010,46(6): 1447.
[18] DU Y, XIAO F, HUA W, et al. Comparison of flux-switching PM motors with different winding configurations using magnetic gearing principle[J].IEEE Transactions on Magnetics,2016,52(5): 8201908.
[19] 徐妲,林明耀,付兴贺,等.混合励磁轴向磁场磁通切换型永磁电机静态特性[J].电工技术学报,2015,30(2): 58.