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文章摘要
一种新型的电容电流在线测量系统设计
Capacitance Current Measurement Method Independent of Arc Suppression Coil Operation
Received:December 10, 2019
Revised:December 31, 2019
DOI：
10.19753/j.issn1001-1390.2020.05.023
中文关键词
:
消弧线圈
信号注入法
陷波模块
可编程交流变频信号
英文关键词
:
基金项目
:
Author Name
Affiliation
E-mail
Wang Guoyou
*
Sate Grid Jilin Electric Power Company Limited Changchun Power Supply Company
44931383@qq.com
Xing Liang
Sate Grid Jilin Electric Power Company Limited Changchun Power Supply Company
neduxl@126.com
Li Weixia
Xuchang Xuji Distribution Co.
,
Ltd
8620187@qq.com
Xu Weijin
Sate Grid Jilin Electric Power Company Limited Changchun Power Supply Company
raiden_quake@sina.com
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中文摘要
:
文中提出了一种补偿电网电容电流的在线测量系统设计方案。系统采用可偏程交流变频信号源注入稳定的非工频信号；采用高Q值的50Hz陷波电路设计滤除工频信号；采用STM32型高速单片机进行过程微处理控制；采用触摸屏组态软件进行项目管理；采用标准的RS485串行口实现模块之间信息交互。在电力系统中性点经消弧线圈接地方式中，不依赖于消弧线圈是否投入运行，不依赖于电网三相平衡度大小，通过可编程交流变频信号源注入非工频信号，推导出计算电容电流的数学模型，经仿真试验验证，测量精度在行业标准要求的范围之内，结果验证了设计方法的正确性、合理性，为消弧线圈接地系统的实际应用提供一种新思路。
英文摘要
:
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