CAJ | 학술논문

针对汽轮发电机组的单一故障诊断的局限性，对现有的故障进行分析和比较。根据振动信号的基本原理，应用了综合模糊诊断的方法对汽轮机的六种常见故障进行诊断。首先由不同故障在不同特征倍频的比例关系得到故障的模糊矩阵，分段对故障振动信号求隶属度，再与故障的模糊矩阵相乘即可求出各故障的隶属度，并用Minkowski距离公式计算隶属度距离大小，来判断诊断的准确性；最后提出模糊诊断的前景及存在的问题。
침대기륜발전궤조적단일고장진단적국한성，대현유적고장진행분석화비교。근거진동신호적기본원리，응용료종합모호진단적방법대기륜궤적륙충상견고장진행진단。수선유불동고장재불동특정배빈적비례관계득도고장적모호구진，분단대고장진동신호구대속도，재여고장적모호구진상승즉가구출각고장적대속도，병용Minkowski거리공식계산대속도거리대소，래판단진단적준학성；최후제출모호진단적전경급존재적문제。
To overcome the limitations of a single fault diagnosis turbine, analysis and comparise of the existing fault are taken. According to the basic principle of vibration signal ,we apply the integrated fuzzy diagnosis method for steam turbine of six common fault diagnosis. First, from the different characteristics of different fault multiplier ratio between the failure a fuzzy matrix, segmentation fault vibration signal gives the membership, then the fault and fuzzy matrix can be calculated by multiplying the degree of membership of each failure, With Minkowski distance formula calculated from the size of the membership, we determine the accuracy of diagnosis;Finally put forward the prospect and the key problem of fuzzy diagnosis.