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基于综合判据的小电流接地选线装置研制
引用本文:赵青春,刘沛,林湘宁,徐强超,刘海峰.基于综合判据的小电流接地选线装置研制[J].电力自动化设备,2006,26(5):84-87.
作者姓名:赵青春  刘沛  林湘宁  徐强超  刘海峰
作者单位:华中科技大学,电气与电子工程学院,湖北,武汉,430074
摘    要:设计了一套基于综合判据的小电流接地选线装置的软硬件系统。该装置硬件系统为自行设计的基于CPLD的采样板卡和工控机。其软件判据为综合暂态和稳态判据的综合判据,并采用了小波分析和数学形态学等数字信号处理技术,提高了选线速度和性能。该软硬件平台运算速度快、运行稳定,是小电流接地系统一种实用的选线平台。

关 键 词:小电流接地系统选线  综合判据  小波  数学形态学
文章编号:1006-6047(2006)05-0084-04
收稿时间:2005-10-26
修稿时间:2005年10月26

Development of fault line selection device based on integrated criterion for indirectly grounding power system
ZHAO Qing-chun,LIU Pei,LIN Xiang-ning,XU Qiang-chao,LIU Hai-feng.Development of fault line selection device based on integrated criterion for indirectly grounding power system[J].Electric Power Automation Equipment,2006,26(5):84-87.
Authors:ZHAO Qing-chun  LIU Pei  LIN Xiang-ning  XU Qiang-chao  LIU Hai-feng
Affiliation:Huazhong University of Science and Technology,Wuhan 430074,China
Abstract:The software and hardware designs of a fault line selection device based on integrated criterion for indirectly grounding power system are presented. Its hardware system founds on developed CPLD - based sampling board and industrial control computer. Its criterion integrates transient and steady criterions. Digital processing techniques of wavelet and mathematical morphology are used to improve the speed and capability of fault line selection. The device is approved a practical one for indirectly grounding power system.
Keywords:fault line selection for indirectly grounding power system  integrated criterion  wavelet  mathematical morphology
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