Article(id=1222482751131996826, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1222482747264852071, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2021.01.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1586966400000, receivedDateStr=2020-04-16, revisedDate=1590076800000, revisedDateStr=2020-05-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1769392200500, onlineDateStr=2026-01-26, pubDate=1611072000000, pubDateStr=2021-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769392200500, onlineIssueDateStr=2026-01-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769392200500, creator=13041195026, updateTime=1769392200500, updator=13041195026, issue=Issue{id=1222482747264852071, tenantId=1146029695717560320, journalId=1149653034449285133, year='2021', volume='54', issue='1', pageStart='1', pageEnd='107', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769392199579, creator=13041195026, updateTime=1769414905563, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222577983139861118, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1222482747264852071, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222577983144055423, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1222482747264852071, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=31, endPage=38, ext={EN=ArticleExt(id=1222482751433986726, articleId=1222482751131996826, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Effect of Trapezoidal Voltage Waveform Parameter on Partial Discharge Characteristics of Generator Stator Insulation, columnId=1190369198472794288, journalTitle=Insulating Materials, columnName=Insulation Technology, runingTitle=null, highlight=null, articleAbstract=
Partial discharge (PD) measurement is an effective way to diagnose the defects and ageing of insulation system in high-voltage electrical equipment. The variation of applied voltage waveform can contribute to deeper understanding of discharge physical process. In this work, symmetrical trapezoidal-wave voltage was employed to investigate the effect of waveform parameter on PD characteristics, based on the PD activity produced in a spherical-plane asymmetric electrode structure on the stator insulation of electrical machines. The results show that apparent PD charge mainly concentrates around 300-500 pC, and it has little relation with the waveform parameter in the trapezoidal-wave voltage. Maximum PD charge in the negative half cycle of applied voltage is larger than that in the positive half cycle. This is mainly due to the metal-dielectric asymmetrical structure of test cell and space charges deposited on the dielectric surface. With the increase of voltage change ratio dU/dt, average PD charge increases, while time delay caused by the phase shift decreases. With the increase of constant-voltage period, both average PD number and average PD charge exhibit almost exponential increasing trend.
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局部放电检测是诊断高压电气设备绝缘系统缺陷和老化的有效手段之一,外加测量电压波形的改变有助于深入理解局部放电的物理过程。以对称梯形波电压为激励,基于电机定子绝缘在球形-平板非对称电极结构下开展局部放电试验,研究不同电压波形参数对局部放电特性的影响。结果表明:视在放电量主要集中在300~500 pC,与梯形波电压波形参数关系不大;最大放电量在外加电压的负半周整体上大于正半周,该差异主要是由放电电极的金属-介质非对称结构及空间电荷在介质表面的累积作用决定的;随着电压变化率dU/dt增大,平均放电量增加,相位偏移引起的时间延迟减小;随着水平电压持续时间增加,平均放电次数和平均放电量在整体上近似呈指数增长趋势。
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王晓蕾(1983-),女(汉族),黑龙江伊春人,高级工程师,博士,主要从事电力设备绝缘诊断、雷电放电物理及电力系统防雷技术的研究。
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1Digital Grid Research Institute, China Southern Power Grid, Guangzhou 610663, China
2School of Automation, Guangdong University of Technology, Guangzhou 510640, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1222577743900955009, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, authorId=1222577743708017013, language=CN, stringName=王晓蕾, firstName=晓蕾, middleName=null, lastName=王, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1南方电网数字电网研究院有限公司,广东 广州 610663
2广东工业大学 自动化学院,广东 广州 510640, bio={"content":"
王晓蕾(1983-),女(汉族),黑龙江伊春人,高级工程师,博士,主要从事电力设备绝缘诊断、雷电放电物理及电力系统防雷技术的研究。
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王晓蕾(1983-),女(汉族),黑龙江伊春人,高级工程师,博士,主要从事电力设备绝缘诊断、雷电放电物理及电力系统防雷技术的研究。
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2广东工业大学 自动化学院,广东 广州 510640)])])], keywords=[Keyword(id=1222577744123253134, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, orderNo=1, keyword=partial discharge), Keyword(id=1222577744215527825, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, orderNo=2, keyword=trapezoidal wave voltage), Keyword(id=1222577744291025302, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, orderNo=3, keyword=stator insulation), Keyword(id=1222577744362328475, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, orderNo=4, keyword=discharge characteristic), Keyword(id=1222577744433631650, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, orderNo=1, keyword=局部放电), Keyword(id=1222577744517517733, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, orderNo=2, keyword=梯形波电压), Keyword(id=1222577744613986729, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, orderNo=3, keyword=定子绝缘), Keyword(id=1222577744718844337, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, orderNo=4, keyword=放电特性)], refs=[Reference(id=1222577748451774997, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, doi=null, pmid=null, pmcid=null, year=2017, volume=43, issue=7, pageStart=2263, pageEnd=2277, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=唐志国, 唐铭泽, 李金忠, journalName=高电压技术, refType=null, unstructuredReference=唐志国,唐铭泽,李金忠,等. 放电电气设备局部放电模式识别研究综述[J].
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33:5942-5949., articleTitle=Influence of aging on classification of partial discharges in cavities, refAbstract=null)], funds=[Fund(id=1222577748242059791, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, awardId=2017A030310272, language=CN, fundingSource=广东省自然科学基金项目(2017A030310272), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1222577743473135973, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, xref=1, ext=[AuthorCompanyExt(id=1222577743481524581, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, companyId=1222577743473135973, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2广东工业大学 自动化学院,广东 广州 510640)])], figs=[ArticleFig(id=1222577744920170938, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.1, caption=
Schematic diagram of PD measurement system with humidity control, figureFileSmall=GgpQHPcbCaWwUNV+yi/0Ug==, figureFileBig=3mLUF7XU2G0Ipn9AxW50NA==, tableContent=null), ArticleFig(id=1222577745020834240, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图1, caption=
湿度可控的局部放电脉冲序列测量系统示意图, figureFileSmall=GgpQHPcbCaWwUNV+yi/0Ug==, figureFileBig=3mLUF7XU2G0Ipn9AxW50NA==, tableContent=null), ArticleFig(id=1222577745134080455, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.2, caption=
A short length of stator bar used in this work, figureFileSmall=vp017IaWwzA0YPE5C29gyg==, figureFileBig=HvCxIJZ3r4KD0iHoQk4oxA==, tableContent=null), ArticleFig(id=1222577745234743753, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图2, caption=
试验采用的一小段电机定子线棒, figureFileSmall=vp017IaWwzA0YPE5C29gyg==, figureFileBig=HvCxIJZ3r4KD0iHoQk4oxA==, tableContent=null), ArticleFig(id=1222577745347989965, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.3, caption=
Applied testing voltage waveforms, figureFileSmall=yXACDunJCyjuimen4ZDJ7A==, figureFileBig=IzYat5347gcpb2QpB7Nbyg==, tableContent=null), ArticleFig(id=1222577745448653267, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图3, caption=
外加测试电压波形, figureFileSmall=yXACDunJCyjuimen4ZDJ7A==, figureFileBig=IzYat5347gcpb2QpB7Nbyg==, tableContent=null), ArticleFig(id=1222577745540927960, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.4, caption=
PDPR patterns at 50 Hz trapezoidal-wave voltage with different voltage rising time T1, figureFileSmall=VGXWtNrX2OXt9pDBnecQPQ==, figureFileBig=kbgGlQiQGxvhbBEVDxWmbw==, tableContent=null), ArticleFig(id=1222577745649979869, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图4, caption=
具有不同电压上升时间T1的梯形波电压(50 Hz)下局部放电相位图谱, figureFileSmall=VGXWtNrX2OXt9pDBnecQPQ==, figureFileBig=kbgGlQiQGxvhbBEVDxWmbw==, tableContent=null), ArticleFig(id=1222577745708700128, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.5, caption=
Discharge pulse characteristic parameters varying with voltage rising time at trapezoidal-wave voltage, figureFileSmall=YfefKTm4F8HfwYN29AloEg==, figureFileBig=YLXGL9iCetS3IsHsw+ox9w==, tableContent=null), ArticleFig(id=1222577745780003301, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图5, caption=
梯形波电压下放电脉冲特性参数随电压上升时间的变化, figureFileSmall=YfefKTm4F8HfwYN29AloEg==, figureFileBig=YLXGL9iCetS3IsHsw+ox9w==, tableContent=null), ArticleFig(id=1222577745863889384, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.6, caption=
PD amplitude distribution varying with voltage rising time, figureFileSmall=IDNcHVzcAqiZXDMks42OZA==, figureFileBig=gHjmSXD9ntcYjaxtQ16PCg==, tableContent=null), ArticleFig(id=1222577745935192556, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图6, caption=
局部放电幅值分布随电压上升时间的变化, figureFileSmall=IDNcHVzcAqiZXDMks42OZA==, figureFileBig=gHjmSXD9ntcYjaxtQ16PCg==, tableContent=null), ArticleFig(id=1222577746019078638, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.7, caption=
PRPD patterns at trapezoidal-wave voltage with T1=1 ms and different duration of T2, figureFileSmall=U+qnrcQ5hkxW5iNZxIr0oQ==, figureFileBig=1yC+WwqcbgY51OWZrU+3Ew==, tableContent=null), ArticleFig(id=1222577746132324850, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图7, caption=
具有不同水平电压持续时间T2的梯形波电压(T1=1 ms)下局部放电相位图谱, figureFileSmall=U+qnrcQ5hkxW5iNZxIr0oQ==, figureFileBig=1yC+WwqcbgY51OWZrU+3Ew==, tableContent=null), ArticleFig(id=1222577747470307829, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.8, caption=
Discharge pulse characteristic parameters varying with duration of constant-voltage at trapezoidal-wave voltage, figureFileSmall=34DPTB0TGPNDTgMJFIRLMg==, figureFileBig=XNxdLfSgA5V957U7d3483w==, tableContent=null), ArticleFig(id=1222577747566776825, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图8, caption=
梯形波电压下放电脉冲特性随水平电压持续时间的变化, figureFileSmall=34DPTB0TGPNDTgMJFIRLMg==, figureFileBig=XNxdLfSgA5V957U7d3483w==, tableContent=null), ArticleFig(id=1222577747654857211, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Fig.9, caption=
PD amplitude distribution varying with duration of constant-voltage, figureFileSmall=GWfomxLQ4qyhlVtUWXIozQ==, figureFileBig=rwlMxcgalXlgITN9N2Vwyg==, tableContent=null), ArticleFig(id=1222577747734548991, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=图9, caption=
局部放电幅值分布随水平电压持续时间的变化, figureFileSmall=GWfomxLQ4qyhlVtUWXIozQ==, figureFileBig=rwlMxcgalXlgITN9N2Vwyg==, tableContent=null), ArticleFig(id=1222577747860378115, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=EN, label=Tab.1, caption=
Waveform parameters of trapezoidal-wave voltage presented in this work, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验 | 波形参数 |
|---|
| I | f/Hz | 50 |
| T1/ms | 0 | 1 | 2 | 3 | 4 | 5 |
| T2/ms | 10 | 8 | 6 | 4 | 2 | 0 |
| II | T1/ms | 1 |
| T2/ms | 0.5 | 1 | 3 | 8 | 18 | 48 |
| f/Hz | 200 | 167 | 100 | 50 | 25 | 10 |
), ArticleFig(id=1222577747982012935, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1222482751131996826, language=CN, label=表1, caption=
试验中采用的不同梯形电压波形参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验 | 波形参数 |
|---|
| I | f/Hz | 50 |
| T1/ms | 0 | 1 | 2 | 3 | 4 | 5 |
| T2/ms | 10 | 8 | 6 | 4 | 2 | 0 |
| II | T1/ms | 1 |
| T2/ms | 0.5 | 1 | 3 | 8 | 18 | 48 |
| f/Hz | 200 | 167 | 100 | 50 | 25 | 10 |
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