Analysis on Asynchronous Power Generation System for Diesel Locomotive

Haibo FENG; Jisheng HU

doi:10.13890/j.issn.1000-128x.2021.01.019

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Analysis on Asynchronous Power Generation System for Diesel Locomotive

Electric Traction and Control | 更新时间：2021-12-09

- Analysis on Asynchronous Power Generation System for Diesel Locomotive
- Electric Drive for Locomotives Issue 1, Pages: 104-109(2021)
- 作者机构：
  
  1.大连交通大学　电气信息工程学院，辽宁　大连　116028
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2021.01.019
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Haibo FENG, Jisheng HU. Analysis on Asynchronous Power Generation System for Diesel Locomotive. [J]. Electric Drive for Locomotives (1):104-109(2021)
DOI：

Haibo FENG, Jisheng HU. Analysis on Asynchronous Power Generation System for Diesel Locomotive. [J]. Electric Drive for Locomotives (1):104-109(2021) DOI： 10.13890/j.issn.1000-128x.2021.01.019.

摘要

针对内燃机车牵引发电系统中异步发电机稳态工作时电机功率因数和效率低的问题，采用无功功率为零和最大转矩电流比控制方法，分析了异步电机旋转坐标系下电磁关系，分别完成无功功率为零和最大转矩电流比（MTPA）控制的方程解析式的解读；在中间直流环节限制下，分析异步发电机的弱磁曲线，寻找最小电流工作点，完成电流轨迹规划；在保证牵引发电系统稳定运行的前提下，提高电机与逆变器的工作效率，并利用Simulink仿真软件对系统进行分析。

Abstract

Aiming at the problem of low power factor and efficiency of the asynchronous motor in the steady-state operation of the asynchronous generator in the traction power generation system of the diesel locomotive, the zero reactive power and the maximum torque-current ratio control method was adopted. Firstly, the electromagnetic relation of the induction motor in the rotating coordinate system was analyzed, and the equations of zero reactive power and maximum torque current ratio(MTPA) control were discussed. Secondly, under the limitation of the intermediate DC link, the field weakening curve of the asynchronous generator was analyzed, the minimum current operating point was found, and the current trajectory planning was completed. On the premise of ensuring the stable operation of the traction power generation system, the working efficiency of the motor and the inverter was improved. Finally, simulation of system was taken out with Simulink software.

关键词

内燃机车异步电动机单位功率因数MTPA弱磁控制仿真

Keywords

diesel locomotiveasynchronous motorunit power factorMTPAfield weakening controlsimulation

references

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张文元. 全变速鼠笼异步风力发电机的双PWM变流器控制策略研究[D]. 南宁: 广西大学, 2017.

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黄文新, 胡育文. 笼型异步发电机的电力电子控制技术[J]. 电工技术杂志, 2001(3): 1-4.

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