A moving horizon H output feedback control scheme for constrained uncertain linear systems

作者：Xu Guokai; Wang Juan^*; Zhang Tao

来源：International Journal of Modelling, Identification and Control, 2012, 16(1): 79-85.

DOI：10.1504/IJMIC.2012.046698

• Actual system
• Constrained conditions
• Constrained systems
• Control constraint
• Control performance
• Dynamic output feedback control
• Exogenous disturbances
• Moving horizon
• Moving horizon control
• Optimisations
• Output feedback
• Output feedback controls
• Over-estimation
• Performance indices
• Uncertain linear system

A dynamic output feedback control via moving horizon H∞ strategy for constrained system is developed. For the constrained system with bounded exogenous disturbances, an output feedback control approach is presented to guarantee H∞ performance in the framework of linear matrix inequalities (LMI). It is a challenge to accurately estimate the largest energy of the disturbance for the actual system. To avoid the conservatism derived from over-estimation and constraints unsatisfaction derived from under-estimation, a new dissipative constrained condition is further employed and a moving horizon output feedback control law which guarantees H∞ performance is presented by optimising the H∞ performance index online. The method can automatically trade-off between satisfying control constraints and enhancing performance, and still make the closed-loop system satisfy the control constraint when the estimation of the largest energy of disturbance is small, thus the control performance of system can be enhanced with certain control abilities.

• 出版日期2012
• 单位大连民族大学