现场控制仪表的故障诊断与补偿容错控制系统The field control instrument failure diagnosis and compensation fault-tolerant control system摘要 :针对过程控制系统的实际问题,首先建立符合工业实际的多种传感器故障和执行器故障的合理描述模型,然后利用神经网络建模、自适应阈值方法研究了故障鲁棒检测与诊断问题,并设计了一种有效的工厂级主动补偿容错控制策略
关键词 :现场仪表;故障诊断;补偿容错;控制系统Abstract:Against process control systems for practical question, first establish industrial the various sensors failure and actuator a reasonable description of the model, and then use the nerve network modeling and thresholds method to study fault of robust detection and diagnosis and designed a good the factory level control strategy for compensation fault-tolerant
Keywords : field control instrument ;Failure diagnosis ;Compensation fault-tolerant ;Control system 图分类号 :TP 273文献标识码 :B0、引言一般的过程控制系统基础层往往包含90%以上的常规控制回路,回路之间又存在关联耦合现象,一旦局部某一控制回路发生故障( 例如,