[1]高自伟‘,朱学成‘,王永红,等.干式空心电抗器匝间短路在线监测系统研制[J].哈尔滨理工大学学报,2017,(02):67-71.[doi:10.15938/j.jhust.2017.02.013]
 GAO Zi-wei `,ZHU Xue-cheuR-`,WANG YouR--houR-`,et al.Study on Turn-to-turn Short Circuit On一line Monitoring Systemfor Dry一type Ai r一core Reactor[J].哈尔滨理工大学学报,2017,(02):67-71.[doi:10.15938/j.jhust.2017.02.013]
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干式空心电抗器匝间短路在线监测系统研制()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2017年02期
页码:
67-71
栏目:
电气与电子工程
出版日期:
2017-04-25

文章信息/Info

Title:
Study on Turn-to-turn Short Circuit On一line Monitoring System for Dry一type Ai r一core Reactor
文章编号:
1007-2683(2017)02-0067-05
作者:
高自伟‘朱学成‘王永红2庄羽2
(}黑龙江省电力科学研究院,黑龙江哈尔滨1s0090;2哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨lsooso}
Author(s):
GAO Zi-wei `ZHU Xue-cheuR-`WANG YouR--houR-`ZHUANG Yu
(1. 2. Sehnnl of laeetrie lleilon}jian} L,lectric lower Kesearch lnstitute and L,n}ineerin}, 日arhin I」 nicersitv of Seienee llarbin 150090,China; and’fechnolo}y, llarbin 150080,China)
关键词:
关键词:干式空心电抗器匝间短路阻抗变化量在线监测
Keywords:
Keywords:dry-type 月} r-core reactorturn-to-turn short circuitimpedance variationon-line monitoring
DOI:
10.15938/j.jhust.2017.02.013
文献标志码:
A
摘要:
摘要:针对干式空心电抗器匝间短路故障后引起电流变化小,故障监测困难的问题,设计了 一种基于阻抗变化量的匝间短路在线监测系统。数值解析了在不同位置发生匝间短路故障后电抗 器等值电阻与等值电抗的变化量,理论分析了基于谐波分析和准同步算法的监测方法。硬件以单 片机为数据处理和逻辑控制的核心,对电抗器电压与电流信号进行数据采集。软件利用上述监测 方法计算出阻抗变化量后,上传给计算机,实现对匝间短路故障的监测。对设计的在线监测系统进 行了试验验证。研究结果表明:干式空心电抗器发生匝间短路后等值电阻增加,等值电抗减小,其 中等值电阻变化更明显。试验结果验证了该监测方法的正确性和监测系统的可行性。
Abstract:
Abstract:The change of current value caused by turn-to-turn short circuit of dry-type air-core reactor is so little that failure detection is difficult to be carried out. In order to solve this problem,a new on-line monitoring system based on impedance variation of turn-to-turn short circuit is proposed. The numerical method is applied to analyze the variation of equivalent resistance and equivalent reactance when dry-type air-core reactor winding short circuit happens in different places,and the monitoring method based on harmonic analysis method and quasi- synchronization sampling method is analyzed by theory. The hardware system,which takes single-chip microcomputer as the core of data processing and logic control,completes data acquisition of voltage signal and current signal of the reactor. In the respect of software design,the impedance variation will be uploaded to the PC after it has been calculated by using the above monitoring method,and then monitoring of turn-to-turn short circuit fault will be realized. Finally,the design of on-line monitoring system is studied by testing. The research result shows that,the equivalent resistance increases and the equivalent reactance decreases when turn-to-turn short circuit occurs,and the variation of equivalent resistance is more obvious than equivalent reactance. The experiment results prove that this monitoring method is true and the on-line monitoring system is feasible.

备注/Memo

备注/Memo:
收稿日期:2016 -07一14 基金项目:国网黑龙江省电力利一学研究院(SG11L111,OOSBJS1500266) 作者简介:高自伟(1979-) ,男,硕士,高级工程师; 朱学成(1966-) ,男,硕士,高级工程师; 王永红(1972-),男,博士,教授,1:一mail ; wyh9195 @ 163.
更新日期/Last Update: 2017-06-12