The Development Research of Plug and Play Rectifier Fault Diagnosis Device

2013 ◽  
Vol 827 ◽  
pp. 309-314
Author(s):  
Fang Lu ◽  
Hong Da Liu ◽  
Wei Yuan Fan ◽  
Wen Hao Zhang ◽  
Nai Jun Shen ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Support Vector Machines ◽  
Support Vector ◽  
Development Research ◽  
Plug And Play ◽  
Rectifier Circuit ◽  
Vector Machines ◽  
Different Types ◽  
Diagnosis Method ◽  
Rectifier Circuits

Based on support vector machines (SVM) theory, the method of fault diagnosis for controlled rectifier circuits is expanded to study in the paper, by the basis we analysis the method can be applied to diode rectifier circuit and verified it through the experiment. In addition to this , the rectifier circuit with different types of loads are also simulated to describe the reason this method is applicable to the different types of loads. In the premise of ensuring the accuracy of the method, through the expansion of research, the fault diagnosis method has broader prospects and higher practical value.

Fault Diagnosis Method in Controlled Rectifier Based on Support Vector Machines

2011 ◽  
Vol 383-390 ◽  
pp. 5006-5011 ◽  
Author(s):  
Hong Da Liu ◽  
Wen Jie Yue ◽  
Hai Lan ◽  
Dian Hua Zhang
Keyword(s):  
Fault Diagnosis ◽  
Support Vector Machines ◽  
Waveform Analysis ◽  
Support Vector ◽  
Power Electronic ◽  
Fault Diagnose ◽  
Rectifier Circuit ◽  
Vector Machines ◽  
Circuit Fault Diagnosis ◽  
Rectifier Circuits

Based on support vector machines (SVM) theory, a new method of fault diagnosis for controlled rectifier circuits is proposed in this paper. Fault diagnose method of power electronic converter has been studied on the basis of direct waveform analysis and SVM. Three-phase bridge rectifier circuit fault is presented as an example, coupled with the results of a certain power electronic circuit experiment, indicates that the method can accurately diagnose and locate fault for controlled rectifier circuits, which is justified practical and applicable for controlled rectifier circuit fault diagnosis.

Fault diagnosis based on support vector machines with parameter optimization by an ant colony algorithm

2009 ◽  
Vol 224 (1) ◽  
pp. 217-229 ◽  
Author(s):  
X L Zhang ◽  
X F Chen ◽  
Z J He
Keyword(s):  
Fault Diagnosis ◽  
Support Vector Machines ◽  
Parameter Optimization ◽  
Ant Colony Algorithm ◽  
Small Sample ◽  
Ant Colony ◽  
Support Vector ◽  
Optimal Parameters ◽  
Vector Machines ◽  
Diagnosis Method

Since support vector machines (SVM) exhibit a good generalization performance in the small sample cases, these have a wide application in machinery fault diagnosis. However, a problem arises from setting optimal parameters for SVM so as to obtain optimal diagnosis result. This article presents a fault diagnosis method based on SVM with parameter optimization by ant colony algorithm to attain a desirable fault diagnosis result, which is performed on the locomotive roller bearings to validate its feasibility and efficiency. The experiment finds that the proposed algorithm of ant colony optimization with SVM (ACO—SVM) can help one to obtain a good fault diagnosis result, which confirms the advantage of the proposed ACO—SVM approach.

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