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基于MATLAB/Simulink S-Function感应电机矢量控制仿真建模 总被引:5,自引:0,他引:5
在分析感应电机的动态数学模型及矢量控制基本思想基础上,采用基于MATLAB/Simulink S函数进行仿真建模的新方法.该方法仿真程序编写简单,修改方便,通用性强.感应电机模块基于坐标系构建,再配以矢量控制器模块、SPWM模块及变换模块等构成感应电机矢量控制系统.仿真结果显示了电机负载变化时转矩、转速、磁通的动态变化曲线,验证了该方法的有效性、实用性,为实际电机控制系统的实现与调试提供了新思路. 相似文献
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基于全滑模面的多感应电机速度同步控制 总被引:3,自引:0,他引:3
基于相邻交叉耦合控制结构, 采用全滑模面控制方法,提出了一种多感应电机速度同步控制策略.该控制策略在对感应电机速度进行跟踪的同时还能实现与其它感应电机的速度同步,使得所有感应电机的速度同步误差收敛于零.利用李亚普诺夫方法证明了该控制器的全局稳定性和收敛性.仿真结果表明了该控制策略的有效性. 相似文献
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无模型控制方法在直线电机控制中的仿真研究 总被引:6,自引:0,他引:6
将基于偏格式线性化的非线性系统无模型学习自适应控制方法应用在直线电机的速度和位置控制中.控制器的设计是直接基于称为伪偏导数的向量,伪偏导数是通过新型参数估计算法,根据给出的永磁直流直线电机非线性系统模型的输入输出信息在线导出的。利用Matlab软件进行仿真实验证明了该方法对电机这种具有不确知动态的非线性系统的有效性和稳定性。 相似文献
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感应电机Backstepping控制方法及dSPACE实时仿真研究 总被引:3,自引:0,他引:3
感应电机的高性能控制研究始终是非线性控制领域中的一个重要研究方向,Backstepping控制方法的提出为感应电机控制系统的非线性设计带来了全新的思路。利用本质上是非线性反馈控制的Backstepping方法,在转子磁链和电机转速不可测的情形下,实现感应电机部分状态反馈的位置渐近跟踪,且确保系统中的所有信号的有界性。该方法通过建立磁链、转速观测器,设计全局定义的控制律,具有形式简单、无奇异点、鲁棒性好等的特点。基于dSPACE的在线仿真结果表明:系统运行平稳,转速、磁链不可获知时,仍可有效渐近跟踪期望的参考位置,具有较优的伺服跟踪特性。 相似文献
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基于RBF网络的机械人鲁棒自适应控制与仿真分析 总被引:1,自引:0,他引:1
针对电机驱动机器人模型,设计了一种鲁棒自适应控制器.首先用动态RBF神经网络逼近机器人动态模型,然后设计了一个带积分器的滤波器,由滤波器系统推导出所需的理想输入电流,再以理想输入电流为目标设计电机控制器并得到最终控制律.基于Lyapunov稳定理论分析了鲁棒自适应控制器的稳定性,给出了稳定性充分条件.实例仿真结果表明,合理的选择控制器参数可使系统具有良好的动态特性和鲁棒稳定性. 相似文献
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《系统工程理论与实践》2014,(5)
正August 10-14,2015Beijing,ChinaThe International Congress on Industrial and Applied Mathematics(ICIAM)is the premier international congress in the field of applied mathematics held every four years under the auspices of the International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists 相似文献
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《系统科学与系统工程学报(英文版)》2014,(2)
正AF:Any Field The School of Economics and Management at Tsinghua University(Tsinghua SEM)invites applications for faculty positions at all levels(Assistant Professor,Associate Professor and Full Professor)in any fields of business administration and management.Tsinghua SEM is the only school 相似文献
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The paper is about negotiating with issues that discourage innovation. The subject is environmental deterioration, with concern directed at the impediments that keep it from being innovatively resolved. The paper is organized around three issues. (1) The dominant model of environmental concern, called environmental protection, is managed predominantly via command and control approaches. (2) Command and control, by relying on analytical segmentation to subdivide the problem into digestible bits and using formal legislation to direct it, are not up to emerging challenges in the area. (3) More robust models are available but difficult to experiment with due to impediments that discourage change. These impediments are seen in ideals associated with protection, prevention, recycling, and sustainability that tend to do more to sustain harmful practices than to seek beneficial alternatives. Being able to appreciate the underlying restrictions of entropy could help stimulate a more innovative agenda. These issues are tested via a project funded by the EPA entitled ENERGY STAR Homes. 相似文献
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This paper presents an outline of an Oriental systems methodology: the Wuli Shili Renli approach (WSR). The basic theme of WSR contends that wuli (regularities in objective existence), shili (ways of seeing and doing), and renli (patterns underlying human relations) constitute a differentiated whole that conditions systems projects. WSR suggests that we should design and employ appropriate methods to address and tackle wuli shili and renli elements in a theoretically informed and systemic way. The background, philosophy, process, principles, and some practical applications of the methodology are preliminarily outlined. 相似文献
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