基于PAR-SMC磁悬浮列车系统仿真研究  

Simulation Study on Sliding Mode Control Maglev Train System Based on Power Approximation Rate

作　　者：李维[1] 潘健[1] 张海鹏 王亚洲 LI Wei 1 , PAN Jian 1 , ZHANG Haipeng 2 , WANG Yazhou 1(1 Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy,Hubei University of Technology,Wuhan 430068,China;2 China Railway Major Bridge Engin. Group Co., Ltd, Wuhan 430068,Chin)

机构地区：[1]湖北工业大学太阳能高效利用湖北省协同创新中心,湖北武汉430068 [2]中铁大桥局集团有限公司,湖北武汉430068

出　　处：《湖北工业大学学报》2018年第4期52-55,62,共5页Journal of Hubei University of Technology

摘　　要：磁悬浮列车系统有着非线性及开环不稳定的特点,采用传统滑模控制(SMC)会出现明显的抖振现象。在讨论单磁铁结构磁悬浮系统模型、对输入输出关系进行线性化的基础上,分析幂次趋近律的滑模控制(PARSMC)在单磁铁结构磁悬浮系统中应用的控制关系,并利用李雅谱诺夫稳定性理论分析该方法的稳定性。Matlab仿真结果表明幂次趋近律的滑模控制比传统的滑模控制有更好的控制性能,抖振明显削弱,位置信号误差更小,动态特性更好,鲁棒性更强。The maglev train system has the characteristics of nonlinearity and open loop instability.The traditional sliding mode control（SMC）will show obvious chattering phenomenon.On the basis of discussing the single magnet structure magnetic levitation system model and linearizing the input and output,the control relationship of the sliding mode control of power approximation rate（PAR-SMC）in the single magnet structure magnetic levitation system was analyzed.The stability of the method was analysed by the Lyapunov stability.The Matlab simulation results show that the sliding mode control of the power approximation rate is better than that of the traditional sliding mode control.The chattering phenomenon is obviously weakened,the position signal error is smaller,the dynamic characteristic is better and the robustness is stronger.

关 键 词：磁悬浮列车系统 幂次趋近律 滑模控制 MATLAB仿真 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]