基于T-S模糊模型的船舶推进系统故障诊断研究

基于船舶推进系统基准(SPSB)测试平台,建立了船舶推进控制系统的T-S模糊模型,结合满意控制理论,通过模糊化与反模糊化将船舶推进系统分成多个局部子系统,给出了各局部子系统在执行器恒偏差故障下,满足多个性能指标约束的故障诊断观测器设计方法。利用Simulink工具箱建立了仿真模型,验证了船舶推进控制系统多性能指标约束下故障诊断观测器的正确性与有效性,为船舶推进系统的故障诊断提供了新的思路。

Researches on Fault Diagnosis Based on T-S Fuzzy Model of Ship Propulsion System

Based on benchmarking platform of ship propulsion systems (Ship Propulsion System Benchmarks: SPSB) and combining with satisfactory control theory, a T-S fuzzy model of marine propulsion control system is established. Through fuzzification and anti-fuzzification, ship propulsion system is divided into a plurality of local subsystems. Each local subsystem gives the actuator under constant bias fault, which meets multiple performance indices of design method of fault diagnosis. By using Simulink toolbox, the simulation model is set up, that verifies correctness and effectiveness of the fault diagnosis observer with good multiple performance indices in ship propulsion system. It provides a new way for fault diagnosis of ship propulsion system.