【摘要】 该文提出了一种新的故障诊断方法,该方法把基于观测器的诊断和基于知识的诊断方法相结合而成为一种集成智能故障诊断方法。在研究了基于多观测器故障诊断方法的基础上,对该集成诊断方法进行了较为详细的讨论。仿真例子表明了该方法的有效性和优越性。更多还原

【Abstract】 A new method of fault diagnosis is presented in this paper.The proposed design is based on a novel strategy,which integrates knowledge-based diagnosis technique into observer-based fault diagnosis method.The proposed general framework consists of two parts:Multiple models are used to match the faults and qualitative knowledge is used to reduce the number of models during one diagnosis.Results from a DC-motor speeds regulating system simulation are presented.It indicates that the proposed method is effective.更多还原