[1]姜雅飞 缪盛泽. 基于电子式电流互感器的采样值差动保护研究[J].南通航运职业技术学院学报,2018,(02):53-57.[doi:10.3969/j.issn.1671-9891.2018.02.012[…]]
　JIANG Ya-fei MIAO Sheng-ze. Research on Differential Protection of Sampled Value Based on Electronic Current Transformer[J].Journal of Nantong Vocational & Technical Shipping College,2018,(02):53-57.[doi:10.3969/j.issn.1671-9891.2018.02.012[…]]
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 基于电子式电流互感器的采样值差动保护研究(/HTML)
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南通航运职业技术学院学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年02期
页码:
53-57
栏目:
机电技术
出版日期:
2018-06-25

文章信息/Info

Title:
 Research on Differential Protection of Sampled Value Based on Electronic Current

Transformer

作者:
 姜雅飞 缪盛泽
 南通航运职业技术学院轮机工程系 南京林业大学机械电子工程学院
Author(s):
 JIANG Ya-fei MIAO Sheng-ze
 Dept.of Marine Engineering, Nantong Vocational & Technical Shipping College School of

Mechanical Electronics Engineering, Nanjing Forestry University

关键词:
 ; 电子式互感器;  采样值差动保护;  采样算法
Keywords:
 ; electronic transformer;  sampled value differential protection;  sampling algorithm
DOI:
10.3969/j.issn.1671-9891.2018.02.012[…]
文献标志码:
A
摘要:
 采样值差动保护原理的保护装置可以直接利用电子式电流互感器的数字化输出的采样数据, 加快保护出

口跳闸, 简化保护配置。采样值电流差动保护优于传统电流差动保护制动效果的条件是:必须在半个周

期中有大于1/4周波的角度范围满足动作判别方程, 即S>N/4。电子式电流互感器采样频率会影响采样值

差动保护动作, 采样频率越高, 在复平面上采样值差动保护动作的模糊区就越小, 保护装置的动作可靠

性就越高。

Abstract:
 The protective device based on differential protection principle of sampled value can

directly utilize digital sampling data output from an electronic current transformer to

accelerate protection of outlet tripping and simplify protection configuration. The

condition that the sampled value current differential protection is superior to the

traditional one in braking effect is that angular range greater than 1/4 of the cycle must

be satisfied in half cycle, i.e., S>N/4. The sampling frequency of the electronic current

transformer affects the differential protection of the sampled value. The higher the

sampling frequency is, the smaller the blurred area of the differential protection on

complex plane will be, and the higher the operational reliability of the protection device

will be.

参考文献/References:

 

[1]孙一民, 李延新, 黎强.分阶段实现数字化变电站系统的工程方案[J].电力系统自动化, 2017, (5)

:90-93.
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更新日期/Last Update: 2018-09-19