Toward Dependable Process Control Systems: Integration of Fault Diagnosis and Controller Redesign
It is inevitable that some faults will occur in any process plants. While usual control only consider systems during nominal operation, dependable control deals with systems subject to faults. Different from adaptive or robust control, this approach includes active redesign of the control system. The rst step of this approach is detection and identication of a fault. The second step is redesign of the corresponding control system. If the fault leads to parameter changes in the system, then the appropriate response is to adjust the controller parameter. If a component becomes unavailable, redesign of the control system is required to keep the system running. This paper considers dependable control systems for process plant. An application of controller redesign is illustrated.
Process control Fault diagnosis Fault-tolerant control Control reconguration,Safety
Yoshiyuki Yamashita
Department of Chemical Engineering,Tokyo University of Agriculture and Technology,2-24-16 Naka-cho,Koganei,Tokyo 184-8588,Japan
国际会议
西安
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）