Enhancing integrity in multivariable process control under actuator failures

作     者：A. Sala P. Albertos 

作者机构：Department of Systems Engineering and Control Polytechnic University of Valencia Spain 

出 版 物：《IFAC Proceedings Volumes》 

年 卷 期：2009年第42卷第8期

页      面：1599-1604页

主　　题：integrity fault-tolerant control state feedback actuator failure LMI BMI 

摘      要：Achieving fault tolerance in process control usually involves supervision and reconfiguration. On the other hand, common robust control approaches achieve a common performance level for a family of plants, which can be unsatisfactory in the nominal case if faulty conditions are not taken into account. This paper discusses the problem of guaranteeing both a nominal performance and a degraded second-class control performance under actuators permanent faults, by using a time invariant controller. LMI, BMI and other possible solutions are investigated in a multivariable state feedback control framework. Two examples from the literature (reactor and jet bank angle control) illustrate the procedure.