Study on the kinetic control scheme of the single-sided linear induction motor i relation with its three dimensional force

对单面直线感应电动机的推力、法向力和侧向力进行了理论研究。推导了基于二维电磁场的解析公式，并证明了其有效性，可用于实际设备的设计。从这些结果可以看出，一个简化的一维模型可以用来推导其动力学控制方案。分析了磁轮直线电机与磁悬浮系统的相互作用，并在此基础上引入了灵敏度分析方法。恒转差频率控制方案在加速过程中可充分抑制法向力和侧力，但其转差较大。然后它降低了运行的能源效率。讨论了效率和动力性能之间的折衷。研究了线性感应电动机优化这些特性的设计方案。副轨的设计对侧力也有影响。通过适当的尺寸和恒转差频率控制方案，力可以补偿横向扰动力。通过仿真研究验证了该方案的有效性。将理论结果与85年世博会在筑波和86年世博会在温哥华进行的HSST-03型磁悬浮列车运行试验数据进行了比较。研究表明，理论分析和新的控制方案通过实际系统得到了验证。

The thrust force, normal force and side force given by the single-sided linear induction motor are studied theoretically. Their analytical formula based on the two dimensional electromagnetic field are derived and proved to be effective enough to design practical equipments. From these results a simlified one dimensional model is shown to be useful to derive its kinetic control scheme. The interaction between linear motor and magnetic suspension system of a magnetic wheel is analyzed and the sensitivity approach is introduced from the result.The normal and side force can be sppressed enough during the acceleration process with constant slip frequency control scheme, but its slip should be rather high. Then it reduces the operational energy efficiency. The compromize between efficiency and dynamic behaviour is discussed. The design scheme of linear induction motor to optimize these characteristics is also studied.The design of the secondary rail has also influences on the side force. With suitable dimensioning and the constant slip frequency control scheme the force could compensate the lateral disturbance force. Such scheme is verified with simulational studies.The theoretical results are compared with experimental data obtained by the test operation of a maglev transport HSST-03 in Tsukuba by EXPO'85 and in Vancouver by EXPO'86. The study shows that the theoretical analysis and the new control scheme is verified through the practical system.