基于可信度理论的火电厂水汽化学过程故障诊断模型研究

Research of the fault diagnosis model for water-steam chemistry process in power plant based on confidence

针对火电厂水汽化学过程中广泛存在着的不确定关系,该文研究并设计了一个基于可信度理论的故障诊断模型。在模型中对知识的表达、推理控制机制的选择、不确定算法的构建等问题做了详细的描述;并改进了规则可信度的设定方法,使该可信度推理更接近于人类专家思维。

In order to deal with the uncertainty relation of water - steam chemistry process in power plant, this paper studied and constructed a fault diagnosis model based on confidence. In this model, the knowledge expression, the choice of reasoning control strategy and the set- up of uncertainly algorithm were introduced in detail. The setting method of rule confidence is improved, and it makes reasoning model closer to human experts thinking.