滑模控制改善液压仿真转台低速性能

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针对液压转台中普遍存在的低速不平滑现象,以某半实物仿真转台为对象,设计了滑模变结构控制器.通过在控制器中引入变速趋近律和饱和函数型切换,较好地解决了变结构系统在到达段和滑动段的动态品质问题.仿真验证表明系统具有良好的低速性、鲁棒性和控制精度.
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