[1]王荣杰.基于相似度的电力电子电路故障诊断技术[J].集美大学学报(自然版),2010,15(5):372-377.
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基于相似度的电力电子电路故障诊断技术()
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《集美大学学报(自然版)》[ISSN:1007-7405/CN:35-1186/N]

卷:
第15卷
期数:
2010年第5期
页码:
372-377
栏目:
船舶与机械工程
出版日期:
2010-09-25

文章信息/Info

作者:
王荣杰12
(1.集美大学轮机工程学院,福建 厦门 361021;2.中山大学信息科学与技术学院,广东 广州 510006)
关键词:
S变换相似度故障诊断电力电子电路
Keywords:
S transformsimilarityfault diagnosispower electronics circuit
摘要:
]采用一种基于S变换相似度的电力电子电路故障诊断方法,首先建立各种故障类型信号的S变换模时频矩阵,然后计算故障信号S变换模时频矩阵与已建立的标准模时频矩阵的相似度,以相似度最大为判别依据,实现故障的诊断.三相桥式可控整流电路晶闸管故障诊断仿真结果表明:该方法能准确对电力电子电路故障进行类型的识别和故障元的定位,对噪声具有鲁棒性,且算法简单
Abstract:
A method of fault diagnosis was proposed for power electronics circuit based on S transform similarity.At first,the standard module time-frequency matrixes of S transform for all fault signals were constructed,then the similarity of fault signal磗 module time-frequency matrixes to standard module time-frequency matrixes was calculated,and according to the principle of maximum similarity the faults were diagnosed.The simulation result of fault diagnosis of thyristor in three-phase full-bridge controlled rectifier showed that the method could accurately diagnose fault and locate fault element for power electronics circuit,and that it had excellent performance on noise robust and calculation complexity
更新日期/Last Update: 2014-06-28