Method and device for temperature simulation of a traction system

By constructing a traction system simulation model and iteratively calculating the traction grid voltage and traction torque based on driving conditions and operating characteristics, the problem of inaccurate temperature simulation of electric locomotive traction motors was solved, and accurate temperature characteristic simulation and control were achieved.

CN115422780BActive Publication Date: 2026-07-17CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Filing Date
2022-10-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Under complex operating conditions of electric locomotives, excessive heat generation of the traction motor affects traction force, and existing technologies cannot accurately simulate and control the temperature characteristics of the traction motor.

Method used

A simulation model of the traction system is constructed. Based on driving conditions and operating characteristics, the traction network pressure and traction torque are calculated iteratively. The temperature characteristics of the traction system are then simulated using the simulation model to determine the temperature characteristics of the traction system.

Benefits of technology

It provides a reference for reasonably controlling the temperature of the traction motor under different driving conditions, and improves the accuracy of temperature characteristic information and control precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a temperature simulation method and device of a traction system, comprising: obtaining driving condition information and operation characteristic information of an electric locomotive; determining traction net voltage and traction torque of a traction system in the electric locomotive based on the driving condition information and the operation characteristic information; and determining temperature characteristic information of the traction system corresponding to the driving condition information by using a simulation model simulating the traction system based on the traction net voltage and the traction torque of the traction system. The application can obtain the temperature condition of a traction motor of the electric locomotive under a target driving condition.
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