摘要
为已实现优化控制的双容时滞系统的再优化,给出一个新的非线性化设计算法.首先根据双容时滞系统(SODTS)二次优化控制原理构造系统无穷维状态观测器,并证明它可以消去时滞对系统的影响,有较强的魯棒性;然后应用均方根放大器(SRA)对它进行非线性化设计,以提高系统的快速性;最后给出了一个非线性化算例和一个比较研究算例.结果表明:新系统不仅具有更快速更平稳的跟踪响应,而且对负荷扰动和参数扰动具有很强的鲁棒性,算法适用性强且易于实现.
We present a new nonlinearized design method for a second-order dead-time system with optimal control.First,on the basis of the twice-optimal control theory of the second-order dead-time system,we construct a system infinite-dimensional state observer and verify that the observer can eliminate the impact of time delay on the system and has strong robustness. Second,to improve the rapidity of the system,we apply a squareroot amplifier to nonlinearize the system. Finally,we illustrate a nonlinear example and a comparative study.Results show that the new system has not only a fast and smooth tracking response but also strong robustness to load the disturbance and the parameter perturbation. The new method has strong applicability and is easy to implement.
出处
《信息与控制》
CSCD
北大核心
2017年第6期664-670,共7页
Information and Control
基金
广东省自然科学基金博士启动项目(2014A030310468)
广东省自然科学基金自由申请项目(2014A030313510)
广东省教育厅项目(261555123)
广东省电子信息产品可靠性技术重点实验室开放基金资助课题(2013A061401003)