[1]兰五胜,徐伟强,毛丽娜,等.基于串行总线同步的氧化锌避雷器在线监测系统设计[J].电瓷避雷器,2020,(03):110-114.[doi:10.16188/j.isa.1003-8337.2020.03.018]
 LAN Wusheng,XU Weiqiang,MAO Lina,et al.Design of Online Monitoring System for MOA Based on Synchronous Acquistion of Serial Bus[J].,2020,(03):110-114.[doi:10.16188/j.isa.1003-8337.2020.03.018]
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基于串行总线同步的氧化锌避雷器在线监测系统设计()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年03期
页码:
110-114
栏目:
避雷器
出版日期:
2020-06-25

文章信息/Info

Title:
Design of Online Monitoring System for MOA Based on Synchronous Acquistion of Serial Bus
作者:
兰五胜 徐伟强 毛丽娜 雍明超 曾国辉 和红伟
(许继集团有限公司, 河南 许昌, 461000)
Author(s):
LAN Wusheng XU Weiqiang MAO Lina YONG Mingchao ZENG Guohui HE Hongwei
(XJ Group Corporation, Xuchang 461000, China)
关键词:
氧化锌避雷器 同步采集 在线监测 阻性电流
Keywords:
surge arrester synchronous acquisition on-line monitoring resistive current
DOI:
10.16188/j.isa.1003-8337.2020.03.018
摘要:
金属氧化锌避雷器(MOA)在运行过程中长时间受工频高压和恶劣环境的影响,因此需要实时监测其运行状态。阻性电流是衡量MOA运行状态的重要监测参数,其测量需同步采集MOA电压和泄漏电流。目前普遍采用外部时钟源同步技术实现数据的同步采集,该同步方案结构复杂成本高。提出一种基于串行总线的避雷器数据同步采集方法,用来完成阻性电流的计算,监测装置通过串行总线实现各信号采集单元同步采样的触发和测量数据的传输。测试数据表明该方法同步采集的误差小,阻性电流测量精度高,可以满足MOA在线监测的要求。
Abstract:
Metal Oxide Arrester(MOA)has to withstand long time influence of high-voltage of power frequency and harsh environment during its operation. It is necessary to monitor MOA status in real time. Resistive current is the most important parameter to monitor the operation status of MOA, whose measurement requires synchronous acquisition of MOA voltage and leakage current. At present, in order to achieve synchronous data acquisition, we need external clock source synchronization technology whose scheme has complex structure and high cost. In this paper, a method of data synchronization acquisition for MOA based on serial bus is proposed,which is used to complete the calculation of resistive current. The monitoring device realizes the trigger of synchronous sampling of each signal acquisition unit and the transmission of measurement data through serial bus. The test data shows that this method has low error of synchronous acquisition, high measurement accuracy of resistive current and can meet the requirements of MOA online monitoring.

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备注/Memo

备注/Memo:
收稿日期:2018-11-15 作者简介:兰五胜(1980—),男,硕士,工程师,现从事高压设备状态监测与故障诊断研究。
更新日期/Last Update: 2020-07-07