| 引用本文: | 任建文,谷雨峰,张 猛,王丽娜.避免线路保护定值频繁修改的方法及其实现[J].电力自动化设备,2015,35(8): |
| REN Jianwen,GU Yufeng,ZHANG Meng,WANG Lina.Method to avoid frequent modification of line protection settings and its implementation[J].Electric Power Automation Equipment,2015,35(8): |
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| 摘要: |
| 线路保护定值应随着电网结构的改变及时进行修改，但是保护定值的频繁修改会降低定值的稳定性，增加出现失配保护的可能性。因此提出了一种减少线路保护定值频繁修改的方法，在满足选择性和灵敏性约束的前提下，通过定值偏差率校验、快速判断阶段和精确判断阶段判断保护是否需要修改定值，提高了系统运行可靠性。将提出的方法应用到整定计算软件中，创建了定值调整模块，该模块的建立丰富了整定计算软件的功能，提高了软件工作效率。 |
| 关键词: 继电保护 整定 保护定值 定值修改 失配保护 软件架构 模块开发 |
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| Method to avoid frequent modification of line protection settings and its implementation |
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REN Jianwen, GU Yufeng, ZHANG Meng, WANG Lina
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School of Electrical and Electronic Engineering，North China Electric Power University，Baoding 071003，China
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| Abstract: |
| The line protection setting should be modified in time to follow the change of power network structure，but the frequent modification may decrease its stability and increase the possibility of protection mismatch，aiming at which，a method is proposed to avoid its frequent modification. While the selectivity and sensitivity are satisfied，it takes three steps to determine if the settings of a protection should be modified：setting deviation rate check，quick judgment and accurate judgment，which avoids unnecessary protection setting modification to increase the reliability of system operation. A setting adjustment module applying the proposed method is created in the setting calculation software，which enhances its performance and improves its efficiency. |
| Key words: relay protection setting protection settings setting modification protection mismatch software architecture module development |
