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Virtual Speed Sensorless Desired Control Strategy of Maglev Single-sided Linear Induction Motors 被引量:3

Virtual Speed Sensorless Desired Control Strategy of Maglev Single-sided Linear Induction Motors
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摘要 单边短初级长次级直线感应电机己普遍应用于低速磁悬浮的驱动系统。由于在动态纵向边端效应影响下等效电路不对称,单边直线感应电机(single-sided linear inductionmotor,SLIM)的一些参数非线性变化。传统的应用于旋转电机的无速度传感器方法不再适用。首先分析了SLIM的M/T轴等效电路,选择次级磁链作为速度观测器状态变量。根据李雅普诺夫系统稳定性判据,推导出适用于SLIM的无速度传感器辨识;然后,采用反馈广义积分观测器控制稳态辨识速度的双幅脉振幅值;引入虚拟期望变量(virtualdesiredvariable,VDV)法,利用估算速度参与SLIM的恒滑差频率矢量控制。仿真与实验对所提控制算法的有效性和实用性进行了验证,所得结论可为磁悬浮的无速度传感器控制提供参考。 Single-sided linear induction motors (SLIMs) are widely used as traction components in maglev transportation systems. It is of great practical value to study speed sensorless control methods of SLIM. End-effect which is related to the speed of mover is considered, and the M-axis equivalent circuit of SLIM is asymmetric to T-axis. The secondary flux is chosen as the state variable, and the speed identification function is deduced:
出处 《中国电机工程学报》 EI CSCD 北大核心 2012年第27期I0006-I0006,182,共1页 Proceedings of the CSEE
基金 国家自然科学基金项H(60674030) 国家863高技术基金项目(2009AAllZ217).
关键词 无速度传感器控制 直线感应电机 磁悬浮 控制策略 直线感应电动机 单面 虚拟 SLIM single-sided linear induction motor (SLIM) secondary flux speed identify double amplitudes vibration virtualdesired control
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  • 2徐伟,孙广生,李耀华,金能强.一种新型的直线异步电机参数测量方案[J].电工技术学报,2007,22(6):54-58. 被引量:15
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