摘要
失水事故发生时,在事故初期判断出事故类型对操纵员安全操作意义重大,为此提出一种基于监控参数的失水事故类型判断方法。该方法根据事故发生后13s内监控参数的变化速率与破口类型的对应关系,提取故障征兆,建立事故判断模型,并根据建立的模型使用支持向量机分类的方法进行破口事故类型判断。试验结果表明,该方法在事故发生初期可准确、有效地判断出典型失水事故的破口尺寸和相对位置。
When LOCA happened , judging accident type at the beginning was quite important for the operator to safely operate nuclear power plant ,thus ,a method to judge accident type based on monitoring parameters was proposed . In this method , according to the mapping between the change rates of monitoring parameters and the accident types in the first 13 s after accident ,the accident symptom was distilled and a judging model was built ,with which accident types were judged by using SVM classify method .Test results show that the method can judge the break size and the relevant position of a typical LOCA exactly and effectively in the beginning of the accident .
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2014年第3期462-468,共7页
Atomic Energy Science and Technology
关键词
支持向量机
失水事故
多分类问题
船用核动力装置
support vector machine
loss of coolant accident
multi-classification
marine nuclear power plant
