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连续平压机伺服位置系统自适应滑模反步控制 被引量:3

Adaptive Backstepping Sliding Mode Control for Continuous Flat Press Servo Position System
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摘要 针对连续平压热压机中执行机构存在的非线性问题、参数不确定和因板坯粘弹性对执行元件反作用力引起的外界干扰问题,采用了自适应滑模反步控制方法。对执行机构建立数学模型后,结合自适应滑模控制和反步法,有效降低了参数不确定、非线性和外界干扰对系统的影响,大大改善了控制系统的准确性。利用控制系统非线性数学模型的等价变换并选择合适的Lyapunov函数和中间虚拟量,完成了对系统稳定性的证明。仿真研究结果表明,所设计的自适应滑模反步控制器输出平稳,达到了快速准确的跟踪目的,同时对参数的变化具有较强鲁棒性。 An adaptive baekstepping sliding mode control method was proposed for hydraulic servo position system of continuous flat press hot press agency,which contains nonlinear characteristics,parametric uncertainty and external in- terference problems caused by viscoelastic of the slab. After creating a mathematical model of the implementing a- gencies,combined with adaptive sliding mode control and back-stepping,effectively reducing the effects of parametric uncertainty ,nonlinearity and external disturbances on the system,greatly improved the accuracy of the control system. Nonlinear mathematical model using a control system equivalent transformation and select the appropriate Lyapunov function and middle dummy variables ,complete proof of the stability of the system. Simulation results show that the designed adaptive sliding backstepping controller output stable,and reach a fast and accurate tracking purposes,while the changes in the parameters of a strong robustness.
出处 《自动化与仪表》 2015年第3期40-43,56,共5页 Automation & Instrumentation
基金 黑龙江省科技计划项目(GC12A407)
关键词 中密度纤维板 热压机 反步法 自适应滑模控制 液压缸 medium density fiberboard(MDF) hot-press back-stepping adaptive sliding mode control hydraulic cylinder
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