引入事例推理的牵引变电所故障分析专家系统  

Fault analysis expert system of transformer substation based on case-based reasoning

作　　者：刘凤[1] 李群湛[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《继电器》2006年第10期77-80,共4页Relay

摘　　要：传统的电气化铁道牵引变电站故障分析专家系统多采用基于规则推理(BRB)的方法,获取知识困难,推理速度较慢,自学习能力较差,很难适应铁路牵引网发展的需求。文中介绍了引入事例推理的方法,将事例库分为知识库、一般事例库以及特殊事例库,使系统故障分析更加快速可靠,动作评价准确,克服了传统专家系统获取描述准确知识困难的瓶颈,提高了自学习能力。The rule-based traditional fault analysis expert systems are mostly adopted in transformer substation. But their knowledge acquiring and self-learning ability is weak, the speed of reasoning is slow. It is difficult for them to meet the need of railway traction net development. A new method based on case-based reasoning is proposed. The case database is composed of three parts ： knowledge database, common case database and special casedatabase. The system can analyze the fault accurately and quickly, overcome the bottleneck of the traditional expert systems which obtain and describe the knowledge difficultly, at the same time, the self-learning ability is greatly improved.

关 键 词：故障分析专家系统 事例推理 规则推理 牵引变电所 

分 类 号：TM922.4[电气工程—电力电子与电力传动] TM76