An Optimization Approach to Control Reconfiguration
An Optimization Approach to Control Reconfiguration
复制标题
控制重构的优化方法
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
P. Antsaklis
中科院分区：
文献类型：
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作者：
I. Konstantopoulos;P. Antsaklis
本文提出了一种优化算法，用于解决系统在运行状态变化或系统元件突然故障时的控制重构问题。该算法利用了一个版本的Broyden-Fletcher-Goldfarb-Shanno（BFGS）共轭方向优化方法。该算法提供了一个输出反馈控制器，不仅稳定的新的/受损的系统，在可能的情况下，但也保留了原来的/未发生故障的系统的动态。该设计使得闭环系统对于受损系统状态空间矩阵上不可避免的不确定性/建模误差具有鲁棒性。该算法被应用到飞机纵向控制系统，其中两个严重的故障情况下被认为是，首先是一个致动器的损失，然后除了致动器损失的传感器的损失。
An optimization algorithm for the problem of control reconfiguration in response to operating condition changes or abrupt system component failures is presented here. The algorithm utilizes a version of the Broyden-Fletcher-Goldfarb-Shanno (BFGS) optimization method of conjugate directions. The algorithm provides an output feedback controller that not only stabilizes the new /impaired system, when possible, but also preserves much of the dynamics of the original /unfailed system. The design is such that the closed-loop system is robust with respect to inevitable uncertainties /modelling errors on the state-space matrices of the impaired system. The algorithm is applied to an aircraft longitudinal control system, for which two severe cases of failure are considered, first the loss of an actuator and then the loss of a sensor in addition to the actuator loss.