| 一种基于模式识别的可控整流电路故障诊断方法 |
| |
| 引用本文： | 贾鹏,郭其一,王钰.一种基于模式识别的可控整流电路故障诊断方法[J].城市轨道交通研究,2004,7(5):45-49. |
| |
| 作者姓名： | 贾鹏 郭其一 王钰 |
| |
| 作者单位： | 同济大学电气工程系,200331,上海;同济大学电气工程系,200331,上海;同济大学电气工程系,200331,上海 |
| |
| 摘 要： | 以双桥串联可控整流电路为例,介绍了大功率可控整流装置的工作原理.在对各种故障进行分类的基础上提出根据整流电压的脉波数将输出波形分段,通过实时监测各波段电压采样均值和标准差,对各段电压波形进行分类,从而将故障波形用模式向量表示.通过对模式向量二进制编码后进行循环移位实现对故障的在线诊断和精确定位.
|
| 关 键 词： | 整流电路 故障诊断 模式向量 二进制编码 循环移位 |
| 修稿时间： | 2004年2月26日 |
A Diagnosis of Rectifier Fault Based on Pattern Recognition |
| |
| Jia Peng,Guo Qiyi,Wang Yu Dept. of Electrical Eng.,Tongji Univ.,Shanghai,China.A Diagnosis of Rectifier Fault Based on Pattern Recognition[J].Urban Mass Transit,2004,7(5):45-49. |
| |
| Authors: | Jia Peng Guo Qiyi Wang Yu Dept of Electrical Eng Tongji Univ Shanghai China |
| |
| Institution: | Jia Peng,Guo Qiyi,Wang Yu Dept. of Electrical Eng.,Tongji Univ.,200331,Shanghai,China |
| |
| Abstract: | Taking the double serial controlled circuit as an example,this paper introduces the working principle of high power rectifier devices.On the basis of fault classification,the output voltage waveforms are divided into sub-waveforms by the counts of rectifier voltage pulse waves,then the sub-waveforms are further classified by real time measurement of voltage,taken from sub-waveform sampling points' average values and standard deviations,thus the fault waveforms can be described by pattern vectors.The authors argue that the faults can be diagnosed online and exactly located by cycle shifts of pattern vectors' binary code. |
| |
| Keywords: | rectifier circuit fault diagnosis pattern vector binary code cycle shift |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
