Chen Zhaohui, Tan Jie, Wang Xifeng, Cao Zhong
School of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing 401331, PR China.
School of Science, Zhongyuan University of Technology, Zhengzhou 450007, PR China.
ISA Trans. 2020 Jan;96:69-80. doi: 10.1016/j.isatra.2019.06.019. Epub 2019 Jun 24.
An observer-based decentralized tracking control technique is developed for a saturated interconnected Markovian jump system in the sense of finite-time stability (FTS). To improve tracking performances, a L-L performance criterion which is relevant to both estimated error and estimated tracking error is proposed. A sufficient condition for finite-time bounded (FTB) is established. In view of the obtained condition, a method with the one-step procedure to seek the gains of observer and controller is investigated. By virtue of this procedure, the problem of the decentralized tracking stabilization is transformed into a convex optimization problem subject to constraints in the form of linear matrix inequalities (LMIs). Furthermore, the tracking control problem of interconnected Markovian jump system without saturation is also investigated, and the results are obtained directly to avoid taking congruent transformation. Simulation is presented to show the effectiveness and applicability of the obtained results.
针对饱和互联马尔可夫跳跃系统,从有限时间稳定性(FTS)的角度出发,开发了一种基于观测器的分散跟踪控制技术。为了提高跟踪性能,提出了一种与估计误差和估计跟踪误差相关的L-L性能准则。建立了有限时间有界(FTB)的充分条件。鉴于所获得的条件,研究了一种采用单步程序来求解观测器和控制器增益的方法。借助该程序,将分散跟踪镇定问题转化为一个受线性矩阵不等式(LMI)形式约束的凸优化问题。此外,还研究了无饱和互联马尔可夫跳跃系统的跟踪控制问题,直接得到结果以避免进行合同变换。通过仿真验证了所获结果的有效性和适用性。