| 保护与控制二次回路内电快速瞬变脉冲群的干扰模型及MATLAB仿真 |
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| 引用本文： | 秦晓辉,黄少锋.保护与控制二次回路内电快速瞬变脉冲群的干扰模型及MATLAB仿真[J].电力系统保护与控制,2006,34(4):17-21. |
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| 作者姓名： | 秦晓辉 黄少锋 |
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| 作者单位： | 华北电力大学四方研究所 北京102206 |
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| 摘 要： | 在变电站的保护与控制二次回路及直流操作系统中,经常发生如IEC61000-4(GB/T 17626)中所规定的电快速瞬变脉冲群模拟的电磁干扰。这类干扰对于微机保护装置的影响极大,该文研究了这种干扰的机理和模型,并利用MATLAB对断路器辅助触点断开时产生电快速瞬变的过程进行了建模和仿真。并结合实际情况,得出了一些有用的结论。这对于开展从干扰源通过各种干扰途径耦合到微机保护装置的电磁兼容系统级仿真,以及进一步提高微机保护装置的电磁兼容抗扰度性能和改进变电站内有关元件的安装和布置都有着积极的意义。
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| 关 键 词： | 微机保护 电快速瞬变 电磁兼容 建模 仿真 |
| 文章编号： | 1003-4897(2006)04-0017-05 |
| 收稿时间： | 2005-06-30 |
| 修稿时间： | 2005-09-13 |
Model and MATLAB simulation of the electrical fast transient/burst disturbance in protection and control secondary circuit |
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| QIN Xiao-hui, HUANG Shao-feng.Model and MATLAB simulation of the electrical fast transient/burst disturbance in protection and control secondary circuit[J].Power System Protection and Control,2006,34(4):17-21. |
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| Authors: | QIN Xiao-hui HUANG Shao-feng |
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| Affiliation: | Sifang Institute of North China Electric Power University, Beijing 102206, China |
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| Abstract: | Switching in low voltage DC circuit and protection and control secondary circuit results in the electromagnetic disturbance simulated by electrical fast transient/burst described in IEC61000-4(GB/T 17626).The disturbance affects seriously on the microcomputer based protection.The paper researches the mechanism and model of the disturbance and models and simulates the disturbance resulted from the switching of assistant contact of breaker.Based on the simulation,some conclusions are reached.It is beneficial to enhance the EMC simulation at system level of the microcomputer based protection devices and improve the installing and configuration of the corresponding devices and components. |
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| Keywords: | microcomputer-based protection electrical fast transient/burst EMC modeling simulation |
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