Reconfigurable Control of Hammerstein Systems after Actuator Faults
Reconfigurable Control of Hammerstein Systems after Actuator Faults
复制标题
执行器故障后 Hammerstein 系统的可重构控制
DOI：
10.3182/20080706-5-kr-1001.00545
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
J. Lunze
中科院分区：
文献类型：
--
作者：
J. Richter;J. Lunze
摘要提出了一种新的稳定Hammerstein系统在执行器故障后的控制重构方法。Hammerstein系统类包含输入饱和系统，这在实际中是普遍存在的。新的重构方法使用虚拟执行器，允许保持在回路中的标称控制器。虚拟执行器的概念被扩展到反映非线性对象的特性。虚拟执行器设计的系统过程，保证闭环稳定性。该方法是实验验证使用耦合坦克系统。
Abstract A new method for the control reconfiguration of stable Hammerstein systems after actuator faults is described. The class of Hammerstein systems contains input-saturated systems, which are ubiquitous in practice. The new reconfiguration approach uses a virtual actuator that permits to keep the nominal controller in the loop. The concept of virtual actuators is extended to reflect the nonlinear plant characteristics. A systematic procedure for virtual actuator design is presented that guarantees closed-loop stability. The approach is experimentally verified using a system of coupled tanks.