2007年 第9卷 第3期
单边直线感应电机纵向边缘效应的研究
1. 中国科学院电工研究所 ，北京 100080；
2. 中国科学院研究生院 ， 北京 100080
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摘要
单边直线感应电机（SLIM）因结构简单牢固，直接产生前进的电磁推力，在交通中得到广泛应用。 由于其磁路断续，电机运行中存在横向和纵向边缘效应；次级的入口和出口因气隙磁链守恒原理会产生涡流， 并随速度上升而加大。边缘效应和涡流大小对直线电机气隙磁链产生重要影响，造成气隙有效磁通和牵引力系 数降低。探讨直线电机工作特点，得到了电机d－q轴等效电路，通过d轴互感和电阻变化来实时反应第二纵 向边缘效应和次级涡流的影响。结合旋转电机转子磁场矢量控制方法，建立了对应的SLIM控制方程。采用转子 磁链、速度和电流三个调节器，提出了uds，uqs，iqs实时在线解耦补偿控制方法，对SLIM的推力、d－q轴电压、d－q轴磁链等进行调节和控制，对d轴互感大小进行限制。结果表明，该方法在电机速度突变时减小了力 矩脉动，定子电流过渡平滑，速度平稳，改善了SLIM的运行性能，为电机实际运行分析提供了理论依据。
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参考文献
[ 1 ] Nasar S A , Boldea I . Linear Motion Electric Machines [M] .New York :Wiley ,1976 .100 ~ 170
[ 2 ] Gieras J F . Theory ,Linear Induction Motor [M] . Oxford Clarendon Press ,1994 .150 ~ 250
[ 3 ] Nasar S A , Boldea I . Theory ,Design and Practical Hall [M] .Inc ,New Jersy ,1985.100 ~ 140
[ 4 ] Takahashi I ,Ide Y .Decoupling thrust and attractive forces of vector control inverter [J] .IEEE Industry Applications , 1993 ,121 :565 ~ 570 链接1
[ 5 ] Jeong-hyoun Sung , Kwanghee Nam . A new approach to vector control for a linear induction motor considering end effects [J] . IEEE Trans on Magnetics , 1999 ,213 : 2284 ~ 2289 链接1
[ 6 ] Yoshida K , et al . New transfer-matrix theory of linear induction machines taking into account longitudinal and transverse ferromagnetic end effects [J] .Proc IEE ,Pt B , 1981 ,128(5) :225 ~ 236 链接1
[ 7 ] Duncan J , Eng C . Linear induction motor-equivalent circuit mode [J] .Proc IEE ,Pt B ,1983 ,130(1) :51 ~ 57 链接1
[ 8 ] Kang G ,Nam K .Field-oriented control scheme for linear induction motor with the end effect [J] . IEE Proc Electr Power Appl ,2005 ,152(6) :1565 ~ 1572 链接1
[ 9 ] Gieras J F ,Dawson G E ,Eastham A R.A new longitudinal end effect factor for linear induction motors [J] .IEEE Trans on Magnetics ,1987 ,EC - 2(1) :152 ~ 159 链接1
[10] Dawson G E ,Eastham A R ,Gieras J F .Design of linear induction drives by field analysis and finite element techniques [J] . IEEE Trans on IA , 1997 , IA - 22(5) : 522 ~ 526 链接1
[11] Iwamoto M ,Sakabe S ,et al .Experimental and theoretical study of high-speed single sided linear induction motors [J] .Proc IEE ,Pt B ,1981 ,128(6) :306 ~ 312 链接1
[12] Kang G ,Nam K .Field-oriented control scheme for linear induction motor with the end effect [J] . IEE Proc Electr Power Appl ,2005 ,152(6) :1565 ~ 1572 链接1
[13] Boldea I , Nasar S A . Linear Motion Electromagnetic Systems [M] .New York :Wiley ,1985 :210 ~ 230
[14] Eastham A R , Dawson G E , Pringle D M , et al . Comparative experimental evaluation of the performance of a SLIM with a solid-steel reaction rail and with an aluminum capped reaction rail [ R] . Queen’s Univ , Kingston ,CIGGT Rep 1980
[15] Khan G B ,Mischler W R ,Oney W R .Performance of a single-sided linear induction motor with solid back iron and with various misalignment [R] . General Electric Co , Schenectady ,NY ,Rep 1999
[16] Faiz J ,Jafari H .Accurate modeling of single-sided linear induction motor considers end effect and equivalent thickness [J] .IEEE Trans ,2000 ,MAG - 36 (5) :3785 ~ 3790 链接1
[17] Eastham A R , Dawson G E , Atherton D L , et al . Test facility for the determination of linear induction motor performance [R] .Queen’s Univ ,Kingston , CIGGT Rep 80 - 6 ,1980
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