Automation of Electric Power SystemsVol. 40, Issue 13, Pages: 1-4(2016)
作者机构:
华中电网有限公司,湖北省,武汉市,430077
作者简介:
基金信息:
DOI:
CLC:
Published:2016
稿件说明:
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LIU Huanzhang. [J]. Automation of electric power systems, 2016, 40(13): 1-4.
DOI:
LIU Huanzhang. [J]. Automation of electric power systems, 2016, 40(13): 1-4.DOI:
继电保护的柔性动作特性
摘要
分析了传统继电保护特性的不足
提出了继电保护的柔性动作特性概念
即根据保护对象的故障特征采用多种判据确定动作特性。相比采用单一判据的继电保护刚性特性
柔性动作特性适用于故障特征不显著的情形。介绍了继电保护柔性动作特性的应用场合
包括变压器励磁涌流识别、距离保护振荡闭锁开放条件、高阻接地故障的速动性与准确性等
展望了继电保护柔性动作特性的应用前景。
Abstract
The deficiency of traditional relay protection is analyzed
and the concept of flexible operation features of relay protection is proposed. That is
operation features are determined with a variety of criteria according to the fault characteristics of protection objects. Compared with the operation features using a single criterion for relay protection
flexible operation features are suitable for cases of indistinct fault characteristics. The application occasions of the protection flexible operation features are described
including transformer excitation inrush current identification
distance protection oscillation block open conditions
the rapidity and accuracy of high resistance grounding fault
and so on. Finally
the application prospects of the relay protection flexible operation features are previewed.