| 引用本文: | 李岩,尹项根,马天皓,陈德树,徐进亮,楼红勇.T接短线路微机纵差保护原理研究[J].电力自动化设备,1999,(2):21-23 |
| .Research of Microcomputer Differential Current Protection Principle for T Structure Short Transmission Line[J].Electric Power Automation Equipment,1999,(2):21-23 |
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| 摘要: |
| 线路差动保护能否采用采样值差动原理，是一个很有意义的新课题。介绍了采样值差动的基本原理，并以该原理为基础，结合Ｔ接线路差动保护的特点，提出了一种新的保护判据。 |
| 关键词: 采样值 微机差动保护 算法 |
| DOI： |
| 分类号:TM773 |
| 基金项目: |
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| Research of Microcomputer Differential Current Protection Principle for T Structure Short Transmission Line |
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Li Yan Yin Xianggen Ma Tianhao Chen Deshu Xu Jinliang Lou Hongyong
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| Abstract: |
| Implementation of differential protection according to every sampled value is a question for discussion.The basic principle of differential protection according to every sampled value is introduced and a new criterion is proposed based on it.Theoretical analysis and dynamic model test show that the new criterion is feasible and improvement is obtain in the ability against TA saturation and high resistance neutral grounding in comparison with conventional differential protection. |
| Key words: sampled values,microcomputer differential current protection,algorithm |
