由两个电机驱动的振动屏幕的控制同步,基于改进的滑动模式控制方法
Lei Jia1, Guohui Wang1, Cheng Pan1
1School of Mechanical Engineering, Shenyang Ligong University, Shenyang, China.
PloS one
|November 21, 2023
概括
使用先进的滑动模式控制 (SMC) 方法对振动屏幕的控制同步增强了振幅,并实现了零相误差. 这种方法解决了传统同步失败的小型化需求,提高了振动屏幕的性能.
科学领域:
- 机械工程 机械工程
- 控制系统工程 控制系统工程
- 振动分析 振动分析
背景情况:
- 现代振动屏幕需要小型化,使传统的振动同步方法不足.
- 现有的方法无法满足对扩幅增加和精确相位控制的过程需求.
- 控制同步提供了实现零相误差和增强振幅的解决方案.
研究的目的:
- 为了研究双电机驱动的振动屏幕的控制同步.
- 实施改进的滑动模式控制 (SMC) 方法,以提高性能.
- 为了实现零相位误差,并增加微型屏幕中的振动幅度.
主要方法:
- 为振动系统开发了一种电机械合动态模型.
- 设计的控制器使用超扭曲滑动模式控制 (ST-SMC) 和在主-奴隶策略下后退第二阶互补滑动模式控制 (BSOCSMC).
- 采用自适应辐射基函数神经网络 (ARBFNN) 进行不确定性估计和莱普诺夫稳定性分析进行理论验证.
主要成果:
- 为振动系统推导并进行数值分析的同步条件和稳定性标准.
- 使用Lyapunov分析证明了设计的ST-SMC和BSOCSMC控制器的理论稳定性.
- 模拟分析证实了拟议的控制同步方法的有效性.
结论:
- 改进的滑动模式控制策略有效地实现了双电机振动屏幕的控制同步.
- 提出的方法成功地增加了振动振幅,并确保零相位误差,满足小型化要求.
- 这项研究为先进的振动屏应用提供了强大的控制解决方案.
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