| 一种基于电流矢量轨迹的PWM逆变器故障诊断方法 |
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| 引用本文： | 秦娟英,王胜东. 一种基于电流矢量轨迹的PWM逆变器故障诊断方法[J]. 电子质量, 2004, 0(4): J011-J012 |
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| 作者姓名： | 秦娟英 王胜东 |
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| 作者单位： | 武汉理工大学,自动化学院,湖北,武汉,430070;武汉理工大学,自动化学院,湖北,武汉,430070 |
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| 摘 要： | 本文介绍了一种对PWM逆变器中晶体管基极驱动开路故障的检测和隔离的方法.通过将三相静止坐标系变换为两相静止坐标系,来分析两相坐标系下的电流矢量轨迹特点.经过对各个晶体管故障时的电流矢量轨迹的斜率的研究,提出了一种基于电流矢量轨迹斜率的故障检测和隔离方法.
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| 关 键 词： | 字:坐标变换 电流矢量轨迹 PWM逆变器 故障诊断 |
Fault Diagnose on a PWM Inverter Based on Current Trajectories |
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| Qin Juanying Wang Shengdong College of Automation Engineer Wuhan University of Technology Wuhan China. Fault Diagnose on a PWM Inverter Based on Current Trajectories[J]. Electronics Quality, 2004, 0(4): J011-J012 |
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| Authors: | Qin Juanying Wang Shengdong College of Automation Engineer Wuhan University of Technology Wuhan China |
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| Affiliation: | Qin Juanying Wang Shengdong College of Automation Engineer Wuhan University of Technology Wuhan 430070 China |
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| Abstract: | This paper presents a method of detection and isolation on a pulsewidth modulation inverter supplying a asynchronous machine. This method is based on the analysis of the slope of the current trajectories, which are based on the Concordia transform. This method is proved successful by MATLAB/ SIMULINK. |
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| Keywords: | Concordia Transform Current Trajectory PWM Inverter Fault Diagnose |
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