面向重构目标的控制系统可重构性

Reconfiguration-Goal-Oriented Control System Reconfigurability

为了给可重构系统控制律重构综合提供设计依据,研究了线性化系统的控制可重构性分析问题.面向控制系统定义了5个重构目标:稳定目标、定点恢复弱目标、轨迹恢复强目标、状态恢复直接目标和故障隐蔽目标.根据控制要求的强度,通过故障隐蔽目标,依次给出了线性闭环控制系统的稳定、弱重构、强重构和直接重构目标的可重构性条件.稳定(镇定)目标的重构条件主要从能控能观结构特性方面考虑,其它几个目标则以秩条件的形式给出.以一个线性MIMO系统的例子来分析可重构性,验证了已得到的重构条件的正确性.

For the sake of providing design insights into the synthesis of controller reconfiguration for reconfigurable systems,control reconfigurability of linearized systems is analyzed.Oriented to control systems,five reconfiguration goals are identified,that is,stabilization goal,setpoint recovery weak reconfiguration goal,trajectory recovery strong reconfiguration goal,state restoration direct reconfiguration goal and fault-masking goal.According to the strength of control requirements,reconfigurability of stabilization,weak,strong,and direct goals via the fault-masking one for the closed-loop linear control system are presented respectively.With regard to the stabilization goal,controllability and observability structural properties are mainly considered,and reconfigurability conditions are given in the form of rank conditions for others.Reconfigurability analysis is illustrated by a linear multi-input multi-output（MIMO） system,validating the achieved reconfiguration conditions.