关键词: 信息物理系统, MIMO对象, 优化控制, 信息共享, 物理约束, 自主协同

Abstract:

Aiming at the problems of low cooperative efficiency and slow convergence of control algorithm for multiple MIMO objects in cyber-physical system (CPS), a cooperative optimization control strategy for multiple MIMO objects under the condition of information sharing is proposed. A new network control system structure with only physical layer and information layer is used to realize real-time sharing of state variables, control and detection information of multiple MIMO objects. Under the condition of information sharing, based on the performance indexes assigned by CPS and the physical constraints between each object, the cooperative controller designed by minimum principle realizes the autonomous cooperative control among multiple systems. The eigenvalue method is used to prove that multiple MIMO objects can realize the overall performance stability of subsystem and CPS under the autonomous cooperative action of the controller. The effectiveness of the control strategy is verified by the simulation of three double-input and double-output objects with mutual physical constraints.

Key words: cyber-physical system, MIMO objects, optimization control, information sharing, physical constraints, autonomous collaboration