合并单元的电快速瞬变脉冲群抗扰度分析

XU Liqing

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合并单元的电快速瞬变脉冲群抗扰度分析

更新时间：2025-08-13

- 合并单元的电快速瞬变脉冲群抗扰度分析
- Automation of Electric Power Systems Vol. 38, Issue 21, Pages: 108-113(2014)
- 作者机构：
  
  南京国电南自电网自动化有限公司,江苏省,南京市,211100
- 作者简介：
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- Published：2014
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XU Liqing. [J]. Automation of electric power systems, 2014, 38(21): 108-113.
DOI：

XU Liqing. [J]. Automation of electric power systems, 2014, 38(21): 108-113. DOI：

摘要

针对合并单元在电快速瞬变脉冲群试验中出现的问题，分析了电快速瞬变脉冲群干扰的特点，提出一种适用于合并单元的电快速瞬变脉冲群的抗扰度措施。提出采用金属化聚酯薄膜电容和瞬态抑制二极管改进交流回路的滤波结构，增强对高频干扰的抑制能力。通过优化母板PCB布局和布线，减少各回路之间耦合的影响。试验结果表明，采用改进后的合并单元能通过电快速瞬变脉冲群4级的要求。

Abstract

According to the problem of merging unit during the test on electrical fast transient/burst（EFT/B），the characteristics of the EFT/B are analyzed and the anti-interference methods for solving the EFT/B problem of the merging unit are proposed.The improved filter structure with metalized polyester film capacitors and transient voltage suppressor（TVS）is proposed to enhance high-frequency interference suppression.The wiring and layout of the mother PCB is optimized to reduce the impact of coupling between different circuits.The results of the test show that the improved merging unit is able to meet the requirements of EFT/B of grade 4.

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