Fault diagnosis method, system and related components of a traction drive system

Abstract

The present application discloses a fault diagnosis method for a traction drive system, which includes obtaining the state signal of the traction drive system; determining the current operating condition through the state signal; extracting electrical characteristic data from the state signal, and if the current operating condition meets the preset conditions , extract the mechanical characteristic data from the state signal; obtain the fault diagnosis result of the traction drive system according to the current characteristic data. This application does not need to install sensors on the rotating parts, avoids changing the structure of the parts, improves the safety of the traction transmission system, and at the same time extracts the mechanical characteristic data and electrical characteristic data and performs fault diagnosis to improve the accuracy of the fault diagnosis results and facilitate operation. Maintenance personnel can locate faults and take timely solutions. The application also discloses a fault diagnosis system, device and computer-readable storage medium of a traction drive system, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the field of rail transit, in particular to a fault diagnosis method, system and related components of a traction drive system. Background technique [0002] With the continuous increase of train operating mileage in our country, the increasing complexity of trains and the requirements for intelligent trains, higher requirements are put forward for the safe and reliable operation of trains. As the core system of the train, the traction transmission system has the dynamic characteristics of the combination of motor and mechanical transmission. It has a high degree of integration and plays a key role in the normal operation of the train. The traction transmission system is mainly composed of rotating parts, and there is usually no detection system on the rotating parts. For the fault diagnosis of the traction drive system, it is necessary to add sensors to the rotating parts. The later installation of the sensors requir...

AI Technical Summary

Problems solved by technology

As the core system of the train, the traction transmission system has the dynamic characteristics of the combination of motor and mechanical transmission. It has a high degree of integration and plays a key role in the normal operation of the train. The traction transmission system is mainly composed of rotating parts, and there is usually no detection system on the rotating parts. If you want to diagnose the fault of the traction drive system, you need to add sensors to the rotating parts. The later installation of sensors requires changing the structure of the parts, which is likely to cause safety hazards

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