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Locomotive dynamics simulation analysis method and device based on electromechanical coupling of driving system

A technology of dynamics simulation and electromechanical coupling, applied in complex mathematical operations, electrical digital data processing, instruments, etc., can solve problems such as the lack of dynamics simulation analysis methods for locomotive systems

Pending Publication Date: 2020-05-19
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

However, the existing technology often considers the locomotive electrical system and the mechanical system separately, and lacks a dynamic simulation analysis method for the locomotive system that comprehensively considers electromechanical coupling.

Method used

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  • Locomotive dynamics simulation analysis method and device based on electromechanical coupling of driving system
  • Locomotive dynamics simulation analysis method and device based on electromechanical coupling of driving system
  • Locomotive dynamics simulation analysis method and device based on electromechanical coupling of driving system

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Embodiment

[0055] The embodiment of the present invention provides a locomotive dynamics simulation analysis method based on electromechanical coupling of drive system, please refer to figure 1 and figure 2 , which includes the following steps:

[0056] S1. Calculation of motor torque: according to the control level N and the running speed v x Calculating the required traction force F of the locomotive t , and get the motor torque T according to the required traction force t ;

[0057] The control level is the gear in which the locomotive is running;

[0058] in:

[0059] r is the locomotive wheel radius; n 1 is the number of locomotives; n 2 is the number of pairs of locomotive wheels; n 3 is the gear ratio.

[0060] According to the locomotive's wheel-to-wheel angular velocity ω and vehicle speed v x Determine whether the locomotive is slipping and perform slip control, adjust the expected output torque of the locomotive motor for the first time, and obtain the motor torqu...

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Abstract

The invention relates to the field of locomotive dynamics analysis, in particular to a locomotive dynamics simulation analysis method and device based on electromechanical coupling of a driving system, and the method comprises the following steps: motor torque calculation: calculating traction force required by a locomotive according to an operation level and an operation speed, and obtaining motor torque according to the required traction force; motor torque output: according to the motor torque value obtained in the motor torque calculation step, obtaining the current needed by the motor, and enabling a motor control system to output the needed current to the motor, so that the motor can output the motor torque needed by analysis to a locomotive mechanical system model; and rotor rotating speed feedback: inputting the motor rotor rotating speed fed back by the locomotive mechanical system model to the motor. The simulation analysis device is used for executing the simulation analysismethod. The simulation analysis method provided by the invention realizes electromechanical coupling of the locomotive driving system.

Description

technical field [0001] The invention relates to the field of locomotive dynamics analysis, in particular to a locomotive dynamics simulation analysis method and device based on electromechanical coupling of a drive system. Background technique [0002] As an electromagnetic device that converts electrical energy and mechanical energy, the main function of the motor is to generate drive torque through the electromagnetic coupling between the stator and the rotor. It has wide speed regulation, small size, high efficiency and small steady-state speed error. Etc. As an important part of the mechanical transmission system, the gear transmission system has the advantages of constant transmission ratio, compact structure, high transmission efficiency and reliability. Drive systems with motors and mechanical transmission systems as the core are widely used in railway locomotives, electric vehicles, machine tools, aerospace, navigation, construction machinery and other fields. For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F17/12G06F119/14
CPCG06F17/12Y02T10/72
Inventor 陈再刚周子伟刘禹清王开云
Owner SOUTHWEST JIAOTONG UNIV
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