| 改善交流机车低速性能的SVPWM控制 |
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| 引用本文： | 林锐,骆开源,郭世明.改善交流机车低速性能的SVPWM控制[J].电力机车与城轨车辆,2011(5):47-49,74. |
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| 作者姓名： | 林锐 骆开源 郭世明 |
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| 作者单位： | 西南交通大学电气工程学院;西南交通大学电气工程学院峨眉校区电气工程系; |
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| 摘 要： | 交流电力机车三电平逆变器-异步电动机系统采用SVPWM控制时,在低速启动阶段,希望正多边形磁链轨迹尽可能接近圆形,使异步牵引电动机三相对称电压近似正弦,以使启动过程更加平稳.文章分析得出系统在低速、低电压工作区,以增加磁链正多边形边数,减小零电压矢量加入时间的电压空间矢量的合成方法,达到改善系统的低速性能的目的.
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| 关 键 词： | 电力机车 三电平逆变器 低速 |
Amend SVPWM control of electric locomotive in low-speed |
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| LIN Rui,LUO Kai-yuan,GUO Shi-ming.Amend SVPWM control of electric locomotive in low-speed[J].Electric Locomotives & Mass Transit Vehicles,2011(5):47-49,74. |
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| Authors: | LIN Rui LUO Kai-yuan GUO Shi-ming |
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| Institution: | LIN Rui1,LUO Kai-yuan2,GUO Shi-ming1(Southwest Jiaotong University:1.Electric Engineering College,Chengdu 610031,China,2.Emei Campus Electric Engineering Department,Emeishan 614202,China) |
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| Abstract: | When the three-level inverter asynchronous motor system in AC electric locomotive adopted SVPWM control at start-up stage in low-speed,it often hopes that magnetic chain of regular polygon as close as possible to a circular,and makes that three-level symmetrical voltage of asynchronous motor look like sinusoidal voltage,so that gets a starting process which has a much more stable function.This paper analyses and gets that through the synthesize method of voltage space vectors by increasing sides number of p... |
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| Keywords: | electric locomotive three-level inverter low-speed |
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