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中文摘要：
静态纵向边端效应是直线电机铁心和绕组开断所致的固有特性之一,对于多段长初级双边直线感应电动机（double-sided linear induction motor,DLIM）,其分段供电方式导致电机铁心长度大于通电绕组长度。针对上述特点,该文从理论分析、数字仿真的角度研究了电机极数及边端铁心对电机静态纵向边端效应的影响机理同时得到了阻抗矩阵规律。研究结果表明,边端铁心的存在对静态纵向边端效应影响很大,且该效应随着边端铁心长度的增加而作用显著,随着极数的增加,该效应作用减弱;电机阻抗矩阵不再是循环对称矩阵,但可以通过测量三相端口电压电流的幅值和相位方便求解。上述规律的正确性通过峰值功率400kW,最大出力14000N的长初级双边直线感应电动机实验系统进行了验证,为电机数学模型的准确描述和参数的精确提取提供了参考。
英文摘要：
Static longitudinal end effect caused by truncated iron and coil windings is the inherent characteristic of linear motors.For multi-segment long primary double-sided linear induction motors（DLIM）,subsection power supply mode result in longer iron than excited coil windings.We present theory analysis and digital simulation to research the influence of end iron and its length and number of poles to static longitudinal end effect and phase impedance matrix.Result shows that end iron and number of poles have a great influence on static longitudinal end effect,static longitudinal end effect becomes remarkable with the increase of end iron length and decrease of number of linear motor poles.Phase impedance matrix,which can be obtained by amplitude and phase of three phase voltages and currents,is not a circulant as rotating machines.Theory analysis and simulation results,which are validated by test data from the long primary DLIM system capable of producing 14 000 N of force,operating at the 400 kW peak power level,could be the reference for accurate description of the dynamics motor model and parameter measurement.
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