Equivalent circuits for single-sided linear induction motors
Equivalent circuits for single-sided linear induction motors
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DOI：
10.1109/ecce.2009.5316539
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发表时间：
2009-11
期刊：
影响因子：
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通讯作者：
W. Xu;Jianguo Zhu;Youguang Guo;Yi Wang;Yongchang Zhang;Longcheng Tan
中科院分区：
文献类型：
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作者：
W. Xu;Jianguo Zhu;Youguang Guo;Yi Wang;Yongchang Zhang;Longcheng Tan
单边直线感应电动机（SLIM）近来已应用于运输系统牵引驱动，特别是在中速范围内。它们具有无机械接触、能对次级施加推力、加减速大、车轮磨损小、转弯半径小、道路线路灵活等优点。这些机器的操作理论可以直接从旋转感应电动机中推导出来，但涉及横向边缘和纵向端部效应以及初级端部半填充槽的几个问题需要进行研究。本文提出了一种基于一维气隙磁场方程的T型等效电路，其中半满槽被等效极数所考虑。然后，推导了直线电机的双轴等效电路，研究了直线电机的动态特性。SLIM样机的实验结果验证了理论分析的正确性。
Single-sided linear induction motors (SLIMs) have lately been applied in transportation system traction drives, especially in the intermediate speed range. They have merits such as the ability to exert thrust on the secondary without mechanical contact, high acceleration or deceleration, less wheel wear, small turning circle radius and flexible road line. The theory of operation for these machines can be directly derived from rotary induction motors, but several issues involving the transversal edge and the longitudinal end effects, and half-filled slots at the primary ends, need to be investigated. In this paper, a T model equivalent circuit is proposed which is based on one-dimensional magnetic equations of the air-gap, where half-filled slots are considered by an equivalent pole number. Then, it deduces two-axis equivalent circuits to study the SLIM dynamic performance. The theoretical analyses have been validated by experimental results on SLIM prototypes.