Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (7): 1501-1505.doi: 10.3969/j.issn.1001506X.2010.07.035

• 制导、导航与控制 • 上一篇    下一篇

具有时变时延和丢包的网络控制系统H∞优化控制

江兵, 张崇巍   

  1. (合肥工业大学电气与自动化工程学院, 安徽 合肥 230009)
  • 出版日期:2010-07-20 发布日期:2010-01-03

H∞ optimal control of networked control systems with timevarying delay and packetdropout

JIANG Bing, ZHANG Chongwei   

  1. (School of Electrical Engineering and Automation, Hefei Univ. of Technology, Hefei 230009, China)
  • Online:2010-07-20 Published:2010-01-03

摘要:

研究了一类存在时变时延和丢包的网络控制系统(networked control systems, NCS )的H∞优化控制问题。当网络时延和连续丢包有界时,NCS被建模为等效的具有时变时滞的系统,利用LvapunovKrasovskii泛函和线性矩阵不等式方法,在NCS渐近稳定的基础上给出NCS状态反馈次优和最优H∞控制律的设计方法,求解时不需要使用重复迭代,设计控制器时也无须知道调节参数。仿真表明了此方法的可行性和有效性。

Abstract:

The problem of H∞optimal control is studied for a class of networked control systems with timevarying networkinduced delay and data packet dropout.Given the bound of data packet losses and networkinduced delay, the NCS is modeled as an equivalent system with timevarying delay. By using the LyapunovKrasovskii functional and linear matrix inequality,statefeedback suboptimum and optimum H∞ control laws of NCS are designed based on asymptotical stability. The design of the controller requires neither iterative operation nor the knowledge of tuning parameters.Simulation results verify the validity and feasibility of the method.