| 引用本文: | 余晖,芮志浩,周欢荣,邵初月.数字式保护装置的抗干扰设计[J].电力自动化设备,2005,(10):82-84 |
| .Anti-interference design for digital protection[J].Electric Power Automation Equipment,2005,(10):82-84 |
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| 摘要: |
| 针对电磁干扰由传导、辐射、耦合3种方式作用于系统的情况，对传导干扰实行电容滤波和磁珠抑制高频干扰相结合的处理方法；对辐射干扰采用将干扰源和被干扰源进行金属壳接地屏蔽的方法：对耦合干扰采用印刷电路板PCB（Printed Circuit Board）设计时将易耦合干扰的线路两边用地线包围等措施；最终使保护装置的抗干扰性能得到很好改善。 |
| 关键词: 传导 辐射 耦合 滤波 抑制 屏蔽 |
| DOI： |
| 分类号:TM774 |
| 基金项目: |
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| Anti-interference design for digital protection |
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YU Hui RUI Zhi-hao ZHOU Huan-rong SHAO Chu-yue
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| Abstract: |
| The electromagnetic interference has three principal approaches to power system, i.e.,conduction,radiation and coupling. The capacitive filter and the magnetons restraining HF interference are used to deal with the conduction interference;both the interference sources and the disturbed sources are shielded with grounded metal rack to deal with the radiation interference;both sides of the lines susceptible to the coupling interference are surrounded by ground wires in printed circuit board design to deal with the coupling interference. As a result,the anti-interference performance of the protection has been significantly improved. |
| Key words: conduction radiation coupling filtering restraint shield |
