切换LPV系统的抗攻击无扰切换控制

Anti-attack bumpless switching control for switched LPV systems

本文针对遭受切换冲击和网络数据注入攻击影响的切换线性变参(LPV)系统,给出保护网络信息安全传输的抗攻击机制,提出一种无扰切换控制方法.首先,设计一种新颖的基于编码/解码器的抗攻击机制,可抵御恶意注入攻击信号对系统反馈通信的干扰.基于此,建立切换LPV系统的抗攻击动态输出反馈闭环控制模型.考虑到模式之间的无扰过渡问题,给出与动态输出反馈控制设计互为补充的,满足无扰切换设计需求和H∞性能指标的控制增益可行条件.在本文提出的控制律下,进一步获取了能保证切换LPV系统指数稳定性的充分条件.最后,通过数值仿真验证所提出抗攻击无扰切换控制方法的有效性.

This paper considers the switched linear parameter varying(LPV)systems that suffer from switching bump and network data injection attack.An anti-attack mechanism is proposed to ensure the safe transmission of network information,and a switching bumpless control method is given.First,a novel anti-attack mechanism based on the encoder/decoder is designed to resist the impact of malicious injection signals on system feedback communication.Then,a closed-loop control model of anti-attack dynamic output feedback for the switched LPV systems is established.Considering the problem of bumpless transition between different modes,the controller gain design condition that satisfies the requirements of bumpless switching and the H∞performance is given.The above condition is a complementary design to dynamic output feedback control.Under the proposed control law,sufficient conditions to ensure the exponential stability of the switched LPV systems are derived.Finally,numerical simulations are given to verify the effectiveness of the proposed anti-attack bumpless switching control method.