摘要
针对量化器参数不匹配和外部干扰问题,利用事件触发方法设计了线性不确定系统的量化反馈滑模控制方法。首先,在动态量化机制中考虑了时变量化器灵敏度变化率,提出一种新的离散在线调整策略,并建立了编码器和解码器侧的量化参数的时变比例模型。其次,结合所设计的量化器事件触发机制,证明了所提出的滑模控制律可以有效消除量化器参数失配的影响,实现不确定线性系统的全局鲁棒镇定。再次,分析了帧间时间的下限以确保没有Zeno行为。最后,通过算例验证了理论结果的有效性。
The quantized feedback sliding mode control method for linear uncertain systems was designed by using event-triggered method to solve the problem of quantization parameter mismatch and external disturbance.Firstly,the time-varying quantizer sensitivity change rate was considered in the dynamic quantization mechanism,a new discrete online adjustment strategy was proposed,and the time-varying scale model of the quantization parameters on the encoder and decoder sides was established.Secondly,combined with the designed quantizer event-triggered mechanism,it was proved that the proposed sliding mode control law can effectively eliminate the influence of quantization parameter mismatch and achieve global robust stabilization of uncertain linear systems.Thirdly,the lower limit of inter frame time was analyzed to ensure that there was no Zeno behavior.Finally,the validity of the theoretical results was verified by examples.
作者
陈志鹏
郑柏超
赖琛
赵阳阳
CHEN Zhi-peng;ZHENG Bo-chao;LAI Chen;ZHAO Yang-yang(School of Automation,Nanjing University of Information Science and Technology,Nanjing 210044,China;Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology,Nanjing 210044,China)
出处
《科学技术与工程》
北大核心
2023年第5期2025-2036,共12页
Science Technology and Engineering
基金
国家自然科学基金(61973169)
江苏省自然科学基金(BK20201392)
江苏高校“青蓝工程”(R2021Q04)。
关键词
量化参数失配
事件触发控制
滑模控制
动态量化
quantization parameter mismatch
event-triggered control
sliding mode control
dynamic quantization
作者简介
第一作者:陈志鹏(1997-),男,汉族,江苏南通人,硕士研究生。研究方向:滑模控制。E-mail:chenzhipeng9710@163.com;通信作者:郑柏超(1981-),男,汉族,山东烟台人,博士,教授。研究方向:滑模控制、网络安全控制。E-mail:zhengbochao81@126.com。
