基于专家系统的船舶电力系统故障诊断研究

Research on Ship Electronic Power System Fault Diagnosis Based on Expert System

针对船舶电力系统在发生故障后难以快速准确地找到故障点的问题,论文采用故障诊断专家系统来对发生的故障进行诊断,以此来提高船舶电力系统供电的持续性。论文在分析船舶电力系统特点的基础上将可能发生的故障分为四类。在知识的表示形式上采用框架式结构来描述船舶电网各部分的联系,运用产生式规则对具体故障进行描述,同时结合模糊推理的思想来处理故障诊断中的不确定性。通过测试,论文所设计的专家系统能够快速准确地找到故障点并提供解决方案,提高了船舶电力系统的可靠性。

Aiming at the difficulty in locating the fault point quickly and accurately after the ship electronic power system fault.In this paper,fault diagnosis expert system is used to diagnose the fault occurred to ensure stability of power supply of ship power system.The possible faults are divided into four categories on the base of analysis of ship electrical system fault characteris-tics.Frame structure is used to describe the connections between the various parts of the ship power system in knowledge presenta-tion.Expert system uses production rules to describe the specific fault and combine the ideal of fuzzy inference to dealing with the uncertainty in fault diagnosis at the same time.The expert system designed in this paper can find fault points and provide solutions quickly and accurately and improves the reliability of the ship power system by test.