Anti-attack bumpless switching control for switched LPV systems

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. © 2023 South China University of Technology. All rights reserved.