T-S模糊模型在船舶推进系统故障诊断中的研究

The study of T-S fuzzy model in ship propulsion system fault diagnosis

人们针对船舶电力设计了各种先进的保护与控制装置,尤其在对推进系统的故障预测与诊断方面开发出了多种行之有效的诊断算法。基于以上需求,本文开发出基于T-S模糊模型的推进系统故障诊断系统,首先建立船舶推进系统中的电机仿真模型,对电机的电压、磁链和运动特性进行研究。在此基础上,利用T-S模糊模型设计了故障识别算法的数学模型,对此模型进行线性化处理后,得到了简化的故障诊断步骤,应用Matlab对算法的故障识别特性进行仿真,从实验结果发现该算法的性能基本能够满足一般情况下的故障识别需求。

It is designed for a variety of advanced marine electric power protection and control devices,especially in the prediction and fault diagnosis system to promote the development of a more effective diagnostic algorithms. Based on the above requirements,the paper developed a propulsion system fault diagnosis system based on fuzzy model T-S,established the first ship propulsion motor system simulation model,voltage,flux and motion characteristics of the motor were studied. On this basis,the use of TS fuzzy model design a mathematical model of fault recognition algorithms, this model of linear processing,simplified troubleshooting steps,using Matlab algorithm for fault recognition characteristics were simulated,from the experimental results it found that the performance of the algorithm is to meet the basic needs of the general fault identification case.