Article(id=1304921639821529834, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921585991836085, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2026.08.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1750953600000, receivedDateStr=2025-06-27, revisedDate=1762876800000, revisedDateStr=2025-11-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1789047163205, onlineDateStr=2026-09-10, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789047163205, onlineIssueDateStr=2026-09-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789047163205, creator=13701087609, updateTime=1789047163205, updator=13701087609, issue=Issue{id=1304921585991836085, tenantId=1146029695717560320, journalId=1149653034449285133, year='2026', volume='59', issue='8', pageStart='1', pageEnd='160', issueExtLink='null', onlineDate='null', pubDate='1787155200000', pubDateStr='2026-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1789047150370, creator='13701087609', updateTime=1789117776362, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1305217812939698326, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921585991836085, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1305217812939698327, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1304921585991836085, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=97, endPage=105, ext={EN=ArticleExt(id=1304921640165462763, articleId=1304921639821529834, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Study on acoustic signal characteristics of transformer oil discharges based on fiber Bragg grating sensor, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
Acoustic signal is the key characteristic parameters for identifying partial discharges (PD) in power transformers. To address the limitations of conventional PD monitoring techniques, such as weak anti-electromagnetic interference and inability to achieve internal deployment, a fiber Bragg grating (FBG) with a frequency range of 5-60 kHz covering audible sound and low-frequency ultrasound was designed in this paper. The sensor was employed to monitor acoustic signal during the discharge process between column-column electrodes in transformer oil, and the frequency domain gravity center and audible acoustic energy proportion of acoustic signal were extracted. Further, the prepared sensor was embedded within a full-scale transformer to verify its monitoring effectiveness for the internal discharge sound signals of transformer. The results show that the dominant frequency bands of the column-column electrode discharge acoustic signals in transformer oil are within the range 5-10 kHz and 46-60 kHz, and the frequency domain gravity center and the audible acoustic energy proportion of the acoustic signal show a trend of increasing first and then decreasing with discharge severity. The proposed FBG sensor can effectively monitor the discharge development in the ±400 kV converter transformer.
, authors=Bin Ren
1, 2, Ziqian Ren
1, Yin Liu
2, Yonghai Xu
1, Jie Sun
2, Guoqiang Li
2, Meng Huang
1, *, authorsList=Bin Ren, Ziqian Ren, Yin Liu, Yonghai Xu, Jie Sun, Guoqiang Li, Meng Huang, authorCompany=null, correspAuthors=Meng Huang, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1304921642438775556, articleId=1304921639821529834, tenantId=1146029695717560320, journalId=1149653034449285133, language=CN, title=基于光纤光栅传感器的变压器油放电声信号特征研究, columnId=1190369198724452531, journalTitle=绝缘材料, columnName=绝缘技术, runingTitle=null, highlight=null, articleAbstract=
声信号是变压器局部放电的关键特征参量。为克服现有变压器局部放电监测方法存在抗电磁干扰能力弱以及无法实现内置式布置的不足,本文设计出一种频率范围为5~60 kHz,覆盖可听声和低频超声的光纤光栅(FBG)传感器。利用该传感器对变压器油中柱-柱电极放电发展过程中的声信号进行测量,同时对声信号的频域重心与可听声能量占比进行提取。进一步将所研制的光纤光栅传感器布置在真型变压器中验证其对变压器内部放电声信号的监测效果。结果表明:变压器油中柱-柱电极放电声信号的主频带在5~10 kHz和46~60 kHz范围内,声信号的频域重心和可听声能量占比随放电严重程度均呈现先上升后下降的趋势;研制的光纤光栅传感器能够有效监测±400 kV真型换流变压器中放电的发展过程。
, authors=任彬
1, 2, 任子乾
1, 刘音
2, 徐永海
1, 孙杰
2, 李国强
2, 黄猛
1, *, authorsList=任彬, 任子乾, 刘音, 徐永海, 孙杰, 李国强, 黄猛, authorCompany=null, correspAuthors=黄猛, authorNote=
任彬(1990-),男(汉族),山西运城人,高级工程师,主要从事柔性直流输电与新型电力系统的研究
, correspAuthorsNote=
黄猛(1988-),男(汉族),湖北黄冈人,副教授,博士,主要从事电气设备在线监测与故障诊断的研究。
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1华北电力大学 新能源电力系统国家重点实验室,北京 102206
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1华北电力大学 新能源电力系统国家重点实验室,北京 102206)]), AuthorCompany(id=1304922283911434493, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, xref=2, ext=[AuthorCompanyExt(id=1304922283924017406, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, companyId=1304922283911434493, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2State Grid Beijing Electric Power Company, Beijing 100073, China), AuthorCompanyExt(id=1304922283953377535, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, companyId=1304922283911434493, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2国网北京市电力公司,北京 100073)])], figs=[ArticleFig(id=1304922296838279472, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.1, caption=
Linear edge filtering schematic diagram, figureFileSmall=zoeyoKstTyI8oXC7P9kSHg==, figureFileBig=AyIwVSDAEGK7fGcy7D08Ow==, tableContent=null), ArticleFig(id=1304922296951525681, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图1, caption=
线性边缘滤波原理图, figureFileSmall=zoeyoKstTyI8oXC7P9kSHg==, figureFileBig=AyIwVSDAEGK7fGcy7D08Ow==, tableContent=null), ArticleFig(id=1304922297706500404, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.2, caption=
Overall structure of fiber Bragg grating sensor, figureFileSmall=FjYIbU5Dx4qZxXK+KNw8tg==, figureFileBig=56c3kb/iWxpFvR1bqr4bLQ==, tableContent=null), ArticleFig(id=1304922298088182069, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图2, caption=
光纤光栅传感器整体结构, figureFileSmall=FjYIbU5Dx4qZxXK+KNw8tg==, figureFileBig=56c3kb/iWxpFvR1bqr4bLQ==, tableContent=null), ArticleFig(id=1304922298507612470, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.3, caption=
Sensitivity response curves of fiber Bragg grating sensor, figureFileSmall=h38Lz6/9ZTsUwosA+S1kLg==, figureFileBig=W2O3RXuT3cKriTwbv0+BCw==, tableContent=null), ArticleFig(id=1304922298922848567, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图3, caption=
光纤光栅传感器灵敏度响应曲线, figureFileSmall=h38Lz6/9ZTsUwosA+S1kLg==, figureFileBig=W2O3RXuT3cKriTwbv0+BCw==, tableContent=null), ArticleFig(id=1304922298998346040, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.4, caption=
Comparison of the sensitivity of fiber Bragg grating sensors before and after ageing, figureFileSmall=Ej38qnApMl4W0lvYVffXew==, figureFileBig=4bV7D2ftwF0s4TIcF+/gKw==, tableContent=null), ArticleFig(id=1304922299367444793, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图4, caption=
光纤光栅传感器老化前后的灵敏度对比, figureFileSmall=Ej38qnApMl4W0lvYVffXew==, figureFileBig=4bV7D2ftwF0s4TIcF+/gKw==, tableContent=null), ArticleFig(id=1304922299489079611, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.5, caption=
Experimental platform for detection of acoustic signals from internal transformer discharges, figureFileSmall=lNH0Vx/rfOmfFlI0ONVbwg==, figureFileBig=37ETWucSeEOWOinvBgD8Pw==, tableContent=null), ArticleFig(id=1304922299761709372, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图5, caption=
变压器油中放电声信号感知试验平台, figureFileSmall=lNH0Vx/rfOmfFlI0ONVbwg==, figureFileBig=37ETWucSeEOWOinvBgD8Pw==, tableContent=null), ArticleFig(id=1304922299837206845, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.6, caption=
The frequency-domain waveform diagrams of acoustic signals measured by three sensors, figureFileSmall=w9uI/FseQSoQ3j8js+ldOQ==, figureFileBig=reCKIkqV3s3J/CNQ+ZuQnA==, tableContent=null), ArticleFig(id=1304922299921092926, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图6, caption=
3种传感器所测声信号频域波形图, figureFileSmall=w9uI/FseQSoQ3j8js+ldOQ==, figureFileBig=reCKIkqV3s3J/CNQ+ZuQnA==, tableContent=null), ArticleFig(id=1304922299979813183, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.7, caption=
The frequency domain waveform of acoustic signals at different stages of discharge, figureFileSmall=b+jg2THDq5jfL8VW1HUrvQ==, figureFileBig=G6BAOUkBhllMFC+QPRSQiw==, tableContent=null), ArticleFig(id=1304922300235665728, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图7, caption=
放电不同阶段的声信号频域波形图, figureFileSmall=b+jg2THDq5jfL8VW1HUrvQ==, figureFileBig=G6BAOUkBhllMFC+QPRSQiw==, tableContent=null), ArticleFig(id=1304922300294385985, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.8, caption=
Change laws of frequency domain center of gravity and energy ratio with time, figureFileSmall=HxngC4g2lsbX1OBMzL9rtg==, figureFileBig=Q4yp7sY9neEmyra3emqPDw==, tableContent=null), ArticleFig(id=1304922300357300546, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图8, caption=
频域重心与能量占比随时间的变化规律, figureFileSmall=HxngC4g2lsbX1OBMzL9rtg==, figureFileBig=Q4yp7sY9neEmyra3emqPDw==, tableContent=null), ArticleFig(id=1304922300684456259, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.9, caption=
Internal discharge defects and sensor layouts of transformer, figureFileSmall=qnF32x8PC/F6dY0dBlbcxA==, figureFileBig=BmoT+qNIIc7KS8/fV/nvfw==, tableContent=null), ArticleFig(id=1304922300747370820, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图9, caption=
变压器内部放电缺陷与传感器布置情况, figureFileSmall=qnF32x8PC/F6dY0dBlbcxA==, figureFileBig=BmoT+qNIIc7KS8/fV/nvfw==, tableContent=null), ArticleFig(id=1304922301087109445, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.10, caption=
The time-domain and frequency-domain waveforms measured by the fiber Bragg sensor, figureFileSmall=Rep8kau84esdec1rlPDvBA==, figureFileBig=n2mFemxEHjOsz3r3nUAUPA==, tableContent=null), ArticleFig(id=1304922301158412614, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图10, caption=
光纤光栅传感器所测时域与频域波形, figureFileSmall=Rep8kau84esdec1rlPDvBA==, figureFileBig=n2mFemxEHjOsz3r3nUAUPA==, tableContent=null), ArticleFig(id=1304922301238104391, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Fig.11, caption=
The maximum amplitude value of the acoustic signal measured by the fiber Bragg sensor, figureFileSmall=FnDROF7Na2ksAz3gvDcPQw==, figureFileBig=KVdqEpXi/zibzkT3wzx7Sw==, tableContent=null), ArticleFig(id=1304922301493956936, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=CN, label=图11, caption=
光纤光栅传感器所测声信号最大幅值, figureFileSmall=FnDROF7Na2ksAz3gvDcPQw==, figureFileBig=KVdqEpXi/zibzkT3wzx7Sw==, tableContent=null), ArticleFig(id=1304922301619786057, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1304921639821529834, language=EN, label=Table 1, caption=
Performance parameters of G40 acoustic sensor
, figureFileSmall=null, figureFileBig=null, tableContent=
| 谐振频率/kHz | 频率范围/kHz | 灵敏度峰值/dB | 尺寸/mm | 外壳材料 | 接收面材料 |
|---|
| 40 | 15~70 | 81 | 2×36.8 | SUS-304 | 陶瓷 |
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G40声传感器性能参数
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| 谐振频率/kHz | 频率范围/kHz | 灵敏度峰值/dB | 尺寸/mm | 外壳材料 | 接收面材料 |
|---|
| 40 | 15~70 | 81 | 2×36.8 | SUS-304 | 陶瓷 |
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Measurement results of transformer oil index
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| 试验条件 | 含水量/(mg/L) | 介质损耗因数/% |
|---|
| 老化前 | 5.11 | 0.319 |
| 老化后 | 无光纤传感器 | 8.06 | 2.105 |
| 有光纤传感器 | 8.21 | 2.045 |
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变压器油各项指标测量结果
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| 试验条件 | 含水量/(mg/L) | 介质损耗因数/% |
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| 老化前 | 5.11 | 0.319 |
| 老化后 | 无光纤传感器 | 8.06 | 2.105 |
| 有光纤传感器 | 8.21 | 2.045 |
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Performance parameters of audible sensors and ultrasonic sensors
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| 传感器类型 | 采样频率/kHz | 频率范围/kHz | 灵敏度/dB |
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| 可听声传感器 | 48 | 0.020~20 | 13 |
| 超声传感器 | — | 15~70 | 峰值>75 |
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可听声传感器与超声传感器性能参数
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| 传感器类型 | 采样频率/kHz | 频率范围/kHz | 灵敏度/dB |
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| 可听声传感器 | 48 | 0.020~20 | 13 |
| 超声传感器 | — | 15~70 | 峰值>75 |
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