Dissertation
Dissertation > Transportation > Rail transport > Locomotive works > Electric locomotive

Study of Online Detection and Fault Diagnosis System for Locomotive Main Circuit and Auxiliary Circuit

Author WuXinHong
Tutor GuoShiMing
School Southwest Jiaotong University
Course Power Electronics and Power Drives
Keywords Locomotive auxiliary circuit Online testing Fault Diagnosis Data storage Data transmission
CLC U264
Type Master's thesis
Year 2006
Downloads 238
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This work mainly around the electric locomotive auxiliary circuit working status online detection and fault diagnosis system of this research project , the paper mainly discusses the structure and working principle of the electric locomotive auxiliary circuits , analysis of the electric locomotive auxiliary circuit common fault , common failure analysis to determine the amount of electric locomotive auxiliary circuit fault diagnosis fault state . The paper design of the A / D converter circuit and the switch detection circuit and A / D converter circuit analog locomotive network side voltage and current , the traction motor armature voltage , armature current , field current , leakage current the amount is detected by the switch detection circuit to achieve the detection of the signal of the display state on the main and auxiliary display driver room . The paper also the storage , transmission and processing of the detected data . Design a data storage circuit CF card and wireless module data transfer circuit . The memory circuit can be sent to the data of the detecting unit is stored , the data transmission circuit may send the data back to the ground . The paper examines the data filtering technology , data filtering . The paper also based on the principle of fault diagnosis of locomotive auxiliary circuit fault diagnosis and fault location . Diagnostic system is able to give the fault location , the type of failure and troubleshooting . The Shuohuang Railway Company and Xi'an Railway Bureau xinfengzhen locomotive depot systems research paper loading test and achieved good results .

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