| 间断角原理微机变压器差动保护的研究与开发 |
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| 引用本文： | 季学军,李哲,姜玉磊,王祖光. 间断角原理微机变压器差动保护的研究与开发[J]. 江苏电机工程, 2008, 27(6): 5-7 |
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| 作者姓名： | 季学军 李哲 姜玉磊 王祖光 |
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| 作者单位： | 国网南京自动化研究院,江苏,南京,210003;国网南京自动化研究院,江苏,南京,210003;国网南京自动化研究院,江苏,南京,210003;国网南京自动化研究院,江苏,南京,210003 |
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| 摘 要： | 从硬件和软件两方面，对间断角原理变压器差动保护微机化实现过程中遇到的困难进行分析并给出解决方法。详细介绍了间断角原理微机变压器差动保护的技术方案，对其中模拟低通、差分滤波、门槛电流选取、间断角与波宽测量等环节采用的关键技术进行了重点阐述。介绍了实际微机保护装置的动模试验情况。
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| 关 键 词： | 变压器差动保护 差电流 间断角 渡宽 动模试验 |
Research and Development of Digital Transformer Differential Relay Based on Dead Angle Philosophy |
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| JI Xue-dun,LI Zhe,JIANG Yu-lei,WANG Zu-guang. Research and Development of Digital Transformer Differential Relay Based on Dead Angle Philosophy[J]. Jiangsu Electrical Engineering, 2008, 27(6): 5-7 |
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| Authors: | JI Xue-dun LI Zhe JIANG Yu-lei WANG Zu-guang |
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| Affiliation: | JI Xue-jun,LI Zhe,JIANG Yu-lei,WANG Zu-guang(Nanjing Automation Research Institute,Nanjing 210003,China) |
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| Abstract: | At first,this paper analyzes the difficulties on hardware and software during the digital realization of transformer differential relay based on dead angle philosophy,and provides the methods to overcome them.Secondly,this paper introduces the technical scheme of digital transformer differential relay based on dead angle philosophy,and emphasis is put on key techniques of this scheme,such as analog low-frequency filter,difference and digital filter,current threshold,measurement of dead angle and width of wa... |
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| Keywords: | transformer differential relay differential current dead angle width of wave dynamic model test |
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