Key Laboratory of Measurement and Control of CSE, Ministry of Education, School of Automation, Southeast University, Nanjing, Jiangsu 210096, China.
Key Laboratory of Measurement and Control of CSE, Ministry of Education, School of Automation, Southeast University, Nanjing, Jiangsu 210096, China.
ISA Trans. 2014 Jan;53(1):2-9. doi: 10.1016/j.isatra.2013.08.001. Epub 2013 Aug 26.
This paper addresses the problem of global output feedback control for a class of nonlinear time-delay systems. The nonlinearities are dominated by a triangular form satisfying linear growth condition in the unmeasurable states with an unknown growth rate. With a change of coordinates, a linear-like controller is constructed, which avoids the repeated derivatives of the nonlinearities depending on the observer states and the dynamic gain in backstepping approach and therefore, simplifies the design procedure. Using the idea of universal control, we explicitly construct a universal-type adaptive output feedback controller which globally regulates all the states of the nonlinear time-delay systems.
本文针对一类具有未知增长率的不可测状态下满足线性增长条件的三角形式非线性时滞系统的全局输出反馈控制问题。通过坐标变换，构造了一种线性类似的控制器，避免了依赖于观测器状态和反步方法中的动态增益的非线性项的重复求导，从而简化了设计过程。利用通用控制的思想，我们明确地构造了一种通用型自适应输出反馈控制器，全局调节非线性时滞系统的所有状态。
