信息网络环境下Markovian跳变系统安全运行控制方法研究

信息物理系统（CPS）是支撑新工业革命的综合技术体系，其安全问题成为制约工业发展的主要瓶颈。现有针对CPS安全问题的研究多关注物理过程为线性定常系统，而在实际工业过程中，被控物理过程往往是变结构随机系统。信息网络环境下的Markovian跳变系统（MJS）作为一类典型的变结构随机CPS，其安全运行控制问题迫切需要深入探索。因此，本项目围绕此问题，针对影响CPS安全运行的关键因素-网络攻击和部件故障，展开故障重构与容错控制、及安全估计与弹性控制方法研究，拟关注解决以下两方面问题：（1）网络诱导时延下MJS故障重构与容错控制；（2）恶意网络攻击下MJS的安全估计与弹性控制。并结合所提出的理论进行半实物平台试验，验证其可行性及有效性。最终获得关于信息网络环境下MJS较为完整的安全稳定运行理论成果，形成具有创新性的研究方法，丰富研究手段，提高MJS在工程实践中的应用能力。

Cyber-physical system (CPS) is a comprehensive technical system supporting the new industrial revolution, and the security issue of which has become the main bottleneck restricting industrial development. The existing research work mostly focuses on CPSs where the physical processes are linear and time-invariant. However, in actual industrial processes, the controlled physical processes are usually stochastic variable structure systems. Markovian Jump Systems (MJSs) under the information network environment are considered to be a typical stochastic variable structure CPSs, the safe operation control issues of which urgently require to be explored in depth. Therefore, this project will conduct research on the security operation control of MJSs under the information network environment. With the key factors, cyber-attacks and component failures, affecting the safe operation of CPS taken into consideration, we will conduct the research of fault reconstruction and fault tolerance control, as well as secure estimation and resilient control of CPSs, and intend to solve the following two problems: (1) Fault reconstruction and fault tolerant control of MJSs under network induced delays; (2) Secure estimation and resilient control of MJSs under malicious cyber-attacks. Then, semi-physical platform tests will be conducted to verify the feasibility and effectiveness of the proposed theories. The purposes of this project lie in deriving relatively complete theoretical results of safe and stable operation of MJSs in information network environment, forming innovative research methods, enriching research methods, and improving the application ability of MJSs in engineering practice.