Article(id=1156907873549767588, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156907871645556837, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2402452, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1712332800000, receivedDateStr=2024-04-06, revisedDate=1721232000000, revisedDateStr=2024-07-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1753757931363, onlineDateStr=2025-07-29, pubDate=1737993600000, pubDateStr=2025-01-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753757931363, onlineIssueDateStr=2025-07-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753757931363, creator=13701087609, updateTime=1753757931363, updator=13701087609, issue=Issue{id=1156907871645556837, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='3', pageStart='879', pageEnd='1312', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753757930909, creator=13701087609, updateTime=1765095544280, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1204461268821320541, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156907871645556837, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1204461268825514846, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156907871645556837, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1093, endPage=1101, ext={EN=ArticleExt(id=1156907875000996784, articleId=1156907873549767588, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Voltage Amplitude Detection Method Based on Improved Second-order Generalized Integrator, columnId=1156262733675876713, journalTitle=Science Technology and Engineering, columnName=Papers·Electrical Technology, runingTitle=null, highlight=null, articleAbstract=
Under the background that the accuracy of voltage amplitude detection is increasing year by year, a voltage amplitude detection method based on improved second-order generalized integrator was proposed to solve the problem that the existing voltage amplitude detection methods were susceptible to the interference of harmonic and DC components, which leaded to insufficient detection accuracy. First, the composition change of voltage after fault was analyzed, and the existence of harmonic component and DC component in fault voltage was proved. Then, the principle and performance of voltage amplitude detection by sine-cosine component method and traditional second-order generalized integral method were analyzed. Then, the output of traditional second-order generalized integrator without DC component was taken as the input of the improved second-order generalized integrator’s second module. In this way, the effective filtering of the DC component was realized, and the Bode diagram, zero pole and step response of the improved second-order generalized integrator under different gain coefficients were analyzed. The optimal gain coefficient was selected considering the influence of filtering effect, stability and response speed. Finally, the simulation results show that the method proposed in this chapter has stronger filtering ability and higher precision than the other two methods.
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在对电压幅值检测精度的要求逐年增高的背景下,针对现有电压幅值检测方法易受谐波分量与直流分量干扰,进而导致检测精度不足的问题,提出了基于改进二阶广义积分器的电压幅值检测方法。首先分析了故障后电压的成分变化,证明了故障电压中谐波分量与直流分量的存在;随后分析了正余弦分量法与传统二阶广义积分法的电压幅值检测原理与性能;然后将传统二阶广义积分器中不含直流分量的输出量作为改进二阶广义积分器第二个模块的输入量,从而实现对直流分量的有效滤除,并对改进二阶广义积分器在不同增益系数下的伯德图、零极点与阶跃响应进行分析,综合考虑滤波效果、稳定性与响应速度等因素的影响,选取了最优增益系数;最后进行仿真验证。结果表明本文所提方法相较于其他两种方法,具有更强的谐波、直流分量滤除能力与更高的精度。
, correspAuthors=王海云, authorNote=null, correspAuthorsNote=
* 王海云(1973—),女,汉族,山东平度人,教授,博士研究生导师。研究方向:可再生能源发电与并网技术。E-mail:
why@xju.edu.cn。
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王宇飞(1999—),男,汉族,黑龙江密山人,硕士研究生。研究方向:电力系统保护与控制。E-mail:844294652@qq.com。
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王宇飞(1999—),男,汉族,黑龙江密山人,硕士研究生。研究方向:电力系统保护与控制。E-mail:844294652@qq.com。
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Harmonic component of fault voltage, figureFileSmall=xprcm0B26uTULpLsfDUpGg==, figureFileBig=zHLMoZUV8qM4CMkMwEOcng==, tableContent=null), ArticleFig(id=1204786508847883175, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图1, caption=
故障电压中的谐波分量, figureFileSmall=xprcm0B26uTULpLsfDUpGg==, figureFileBig=zHLMoZUV8qM4CMkMwEOcng==, tableContent=null), ArticleFig(id=1204786508923380649, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.2, caption=
Single-phase ground fault reduction circuit, figureFileSmall=eESRsGN5TLlFtTY2QY4TAA==, figureFileBig=IpLG1I8um3FMmfBKzvoZRw==, tableContent=null), ArticleFig(id=1204786508982100907, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图2, caption=
单相接地故障简化电路, figureFileSmall=eESRsGN5TLlFtTY2QY4TAA==, figureFileBig=IpLG1I8um3FMmfBKzvoZRw==, tableContent=null), ArticleFig(id=1204786509040821165, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.3, caption=
Direct current component in fault voltage, figureFileSmall=FPL7KR0GbLFrr0auYgSNag==, figureFileBig=bnUnR4M951Be7VDwgguD/Q==, tableContent=null), ArticleFig(id=1204786509112124335, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图3, caption=
故障电压中的直流分量, figureFileSmall=FPL7KR0GbLFrr0auYgSNag==, figureFileBig=bnUnR4M951Be7VDwgguD/Q==, tableContent=null), ArticleFig(id=1204786509183427504, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.4, caption=
Sine-cosine component method logical structure, figureFileSmall=Ii5rQU6gXolr7XA+cKQqYQ==, figureFileBig=4DcgOTBpv+3mVolau0Suuw==, tableContent=null), ArticleFig(id=1204786509254730674, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图4, caption=
正余弦分量法逻辑结构, figureFileSmall=Ii5rQU6gXolr7XA+cKQqYQ==, figureFileBig=4DcgOTBpv+3mVolau0Suuw==, tableContent=null), ArticleFig(id=1204786509317645234, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.5, caption=
Traditional second-order generalized integral logical structure, figureFileSmall=f6nUsjV2X49mzKe2iwG6wg==, figureFileBig=/oFGK5F6cOsmgrneuWQF7g==, tableContent=null), ArticleFig(id=1204786510462690227, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图5, caption=
传统二阶广义积分法逻辑结构 u'in、qu'in为输出的一组正交信号;k为传统二阶广义积分器的增益系数;ω0为传统二阶广义积分器的中心频率,本文中取电网频率,即ω0=2π×50 rad/s
, figureFileSmall=f6nUsjV2X49mzKe2iwG6wg==, figureFileBig=/oFGK5F6cOsmgrneuWQF7g==, tableContent=null), ArticleFig(id=1204786510529799092, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.6, caption=
Amplitude-frequency and phase-frequency diagram of D1(s), figureFileSmall=kR0gHy5zSNuJETbeLAB/8Q==, figureFileBig=oqfDD2Qpz5mQ8qUeD9xBaA==, tableContent=null), ArticleFig(id=1204786510596907957, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图6, caption=
D1(s)的幅频与相频图, figureFileSmall=kR0gHy5zSNuJETbeLAB/8Q==, figureFileBig=oqfDD2Qpz5mQ8qUeD9xBaA==, tableContent=null), ArticleFig(id=1204786510651433911, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.7, caption=
Amplitude-frequency and phase-frequency diagram of Q1(s), figureFileSmall=TJLzjCMMiSo+WzLGkZRcbA==, figureFileBig=fkXqUZafLzHOTv3KFDBS2g==, tableContent=null), ArticleFig(id=1204786510735319991, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图7, caption=
Q1(s)的幅频与相频图, figureFileSmall=TJLzjCMMiSo+WzLGkZRcbA==, figureFileBig=fkXqUZafLzHOTv3KFDBS2g==, tableContent=null), ArticleFig(id=1204786510806623160, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.8, caption=
Improved second order generalized integrator logical structure, figureFileSmall=P0dV05zcRCkmqK7TheY0Sg==, figureFileBig=3ocghEiZ29h3k1scg/8MlQ==, tableContent=null), ArticleFig(id=1204786510873732026, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图8, caption=
改进二阶广义积分器逻辑结构, figureFileSmall=P0dV05zcRCkmqK7TheY0Sg==, figureFileBig=3ocghEiZ29h3k1scg/8MlQ==, tableContent=null), ArticleFig(id=1204786510940840892, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.9, caption=
Amplitude and phase-frequency diagram of D2(s), figureFileSmall=dj9CCpV5vDFtbBBRV1GEGw==, figureFileBig=Cej/1ISrNQgnqUH7bjOpxQ==, tableContent=null), ArticleFig(id=1204786511012144062, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图9, caption=
D2(s)的幅频与相频图, figureFileSmall=dj9CCpV5vDFtbBBRV1GEGw==, figureFileBig=Cej/1ISrNQgnqUH7bjOpxQ==, tableContent=null), ArticleFig(id=1204786511087641536, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.10, caption=
Amplitude and phase-frequency diagram of Q2(s), figureFileSmall=R2chP7DEnm2EAcZTBpD7sA==, figureFileBig=lp6TrjWvf0PB9uJ1iAmfHw==, tableContent=null), ArticleFig(id=1204786511154750402, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图10, caption=
Q2(s)的幅频与相频图, figureFileSmall=R2chP7DEnm2EAcZTBpD7sA==, figureFileBig=lp6TrjWvf0PB9uJ1iAmfHw==, tableContent=null), ArticleFig(id=1204786511221859268, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.11, caption=
Zero-pole plot with different gain coefficients, figureFileSmall=x6m1IepL6bhqdexHo8cwDQ==, figureFileBig=MuVE1e0mqESEFK4pp5ve1w==, tableContent=null), ArticleFig(id=1204786511284773830, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图11, caption=
不同增益系数下零极点, figureFileSmall=x6m1IepL6bhqdexHo8cwDQ==, figureFileBig=MuVE1e0mqESEFK4pp5ve1w==, tableContent=null), ArticleFig(id=1204786511351882695, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.12, caption=
Step response diagram with different gain coefficients, figureFileSmall=4w2/7yGFYOCtqeT0N3kFZA==, figureFileBig=GbbrLrrlA8+IAOvQvggKXw==, tableContent=null), ArticleFig(id=1204786511444157385, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图12, caption=
不同增益系数下阶跃响应图, figureFileSmall=4w2/7yGFYOCtqeT0N3kFZA==, figureFileBig=GbbrLrrlA8+IAOvQvggKXw==, tableContent=null), ArticleFig(id=1204786511544820683, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.13, caption=
Detection results of voltage amplitude by sine-cosine component method under different disturbances, figureFileSmall=xw1AaaUcfIez+yUQLEM4Dw==, figureFileBig=07LvkTMnWFFnRighcayujQ==, tableContent=null), ArticleFig(id=1204786511620318157, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图13, caption=
正余弦分量法在不同扰动下电压幅值检测结果 ubase为未加入扰动前的输入基波电压;u为加入扰动后的输入电压;um为经过正余弦分量检测法所得的电压幅值
, figureFileSmall=xw1AaaUcfIez+yUQLEM4Dw==, figureFileBig=07LvkTMnWFFnRighcayujQ==, tableContent=null), ArticleFig(id=1204786511704204239, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.14, caption=
The traditional second order generalized integral method is used to detect the voltage amplitude under different disturbances, figureFileSmall=QRRic8dasX8zbeLAyPa11A==, figureFileBig=A5rVaCjDsIEANI7e9Qv8/g==, tableContent=null), ArticleFig(id=1204786511783896016, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图14, caption=
传统二阶广义积分法在不同扰动下电压幅值检测结果, figureFileSmall=QRRic8dasX8zbeLAyPa11A==, figureFileBig=A5rVaCjDsIEANI7e9Qv8/g==, tableContent=null), ArticleFig(id=1204786511863587794, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.15, caption=
Improved second order generalized integral method for voltage amplitude detection under different disturbances, figureFileSmall=L9PO7aotYtkKIb9vbW4l5Q==, figureFileBig=kzlj0x3Pg4SNML+sy6nEtw==, tableContent=null), ArticleFig(id=1204786511947473876, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图15, caption=
改进二阶广义积分法在不同扰动下电压幅值检测结果, figureFileSmall=L9PO7aotYtkKIb9vbW4l5Q==, figureFileBig=kzlj0x3Pg4SNML+sy6nEtw==, tableContent=null), ArticleFig(id=1204786512022971350, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=EN, label=Fig.16, caption=
Comparison of simulation results of three voltage amplitude detection methods, figureFileSmall=SBbX1oe2LKB4RTxr3WKZ8Q==, figureFileBig=68BR5KnOqUFYDeXNAdQmFg==, tableContent=null), ArticleFig(id=1204786512098468824, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156907873549767588, language=CN, label=图16, caption=
三种电压幅值检测方法仿真结果对比, figureFileSmall=SBbX1oe2LKB4RTxr3WKZ8Q==, figureFileBig=68BR5KnOqUFYDeXNAdQmFg==, tableContent=null)], attaches=null, journal=Journal(id=1146119176004939786, delFlag=0, nameCn=科学技术与工程, nameEn=Science Technology and Engineering, nameHistory1=null, nameHistory2=null, issn=1671-1815, eissn=, cn=11-4688/T, coden=null, periodic=4, language=CN, oaType=是, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=UKU/O7GSka5polgCTkbIIw==, journalPrice=null, startedYear=null, abbrevIsoEn=Sci Technol Eng, journalRemark=null, publicationField=null, createdTime=null, updatedTime=1754445529766, createdBy=null, updatedBy=13701087609, firstLetterCn=S, firstLetterEn=S, subjectCode=Natural Sciences, 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