Article(id=1146828032305664142, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1146828028623066093, articleNumber=null, orderNo=null, doi=10.13234/j.issn.2095-2805.2025.1.93, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1652371200000, receivedDateStr=2022-05-13, revisedDate=1656518400000, revisedDateStr=2022-06-30, acceptedDate=1657814400000, acceptedDateStr=2022-07-15, onlineDate=1751354709935, onlineDateStr=2025-07-01, pubDate=1738166400000, pubDateStr=2025-01-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1751354709935, onlineIssueDateStr=2025-07-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=1752073867129, onlineFirstDateStr=2025-07-09, sourceXml=null, magXml=null, createTime=1751354709935, creator=13701087609, updateTime=1751354709935, updator=13701087609, issue=Issue{id=1146828028623066093, tenantId=1146029695717560320, journalId=1146031654075715584, year='2025', volume='23', issue='1', pageStart='1', pageEnd='258', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1751354709057, creator=13701087609, updateTime=1765499536223, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1206155733847044492, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1146828028623066093, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1206155733847044493, tenantId=1146029695717560320, journalId=1146031654075715584, issueId=1146828028623066093, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=93, endPage=100, ext={EN=ArticleExt(id=1149844397795336771, articleId=1146828032305664142, tenantId=1146029695717560320, journalId=1146031654075715584, language=EN, title=Modified IPT-PLL Technology for Single-phase Grid-connected Inverter in Weak Grid, columnId=1152281492550987902, journalTitle=Journal of Power Supply, columnName=Renewable Energy System, runingTitle=null, highlight=null, articleAbstract=
Aimed at the problems of DC bias and frequency variation in a weak grid, a modified inverse Park transform phase-locked loop (IPT-PLL) technology suitable for single-phase grid-connected inverters is proposed. First, the α component after Park transform is used as a reference voltage in the phase detector to solve the problem of DC bias in grid voltage, and an orthogonal component is constructed by the method of 1/4 fundamental periodic delay. Second, the fractional-order delay is approximated by Lagrange interpolation polynomial to reduce the calculation error of delay caused by frequency variation, and the design method for PI regulator is theoretically analyzed. Finally, experimental results show that the modified IPT-PLL proposed has a strong frequency adaptivity, and it can significantly suppress the interference of DC bias in grid voltage. In addition, its dynamic and static performances are satisfying.
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针对弱电网普遍存在的直流偏置、频率变化等问题,提出1种适合单相并网逆变器的改进反Park变换锁相环IPT-PLL(inverse Park transform phase-locked loop)技术。首先,在鉴相环节选用Park变换后的α分量为基准电压,解决电网电压直流偏置问题,采用1/4基波周期延时的方法构造其正交分量;其次,引入拉格朗日插值多项式逼近分数阶延时,以降低频率变化造成的延时计算误差,并理论分析PI调节器的设计方法;最后,通过实验验证了所提改进IPT-PLL频率适应性强,能明显抑制电网直流偏置干扰,且具有较好的动、静态性能。
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, authorsList=蔡振兴, 潘红娜)}, authors=[Author(id=1205931306681168331, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=caizhenxing1@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1205931306794414549, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, authorId=1205931306681168331, language=EN, stringName=Zhenxing CAI, firstName=Zhenxing, middleName=null, lastName=CAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=College of Intelligent Manufacturing Industry, Jiangxi University of Engineering, Xinyu 338000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1205931306890883545, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, authorId=1205931306681168331, language=CN, stringName=蔡振兴, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=江西工程学院智能制造产业学院,新余 338000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1205931306555339198, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, xref=null, ext=[AuthorCompanyExt(id=1205931306563727808, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, companyId=1205931306555339198, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=College of Intelligent Manufacturing Industry, Jiangxi University of Engineering, Xinyu 338000, China), AuthorCompanyExt(id=1205931306576310722, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, companyId=1205931306555339198, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=江西工程学院智能制造产业学院,新余 338000)])]), Author(id=1205931306987352548, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=xin_wa69@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1205931307117375985, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, authorId=1205931306987352548, language=EN, stringName=Hongna PAN, firstName=Hongna, middleName=null, lastName=PAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=College of Intelligent Manufacturing Industry, Jiangxi University of Engineering, Xinyu 338000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1205931307222233591, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, authorId=1205931306987352548, language=CN, stringName=潘红娜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=江西工程学院智能制造产业学院,新余 338000, bio={"content":"
潘红娜(1988— ),女,硕士,副教授。研究方向:电力电子技术。E-mail:xin_wa69@163.com。
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潘红娜(1988— ),女,硕士,副教授。研究方向:电力电子技术。E-mail:xin_wa69@163.com。
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2006. (in Chinese), articleTitle=null, refAbstract=null)], funds=[Fund(id=1205931312280564452, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, awardId=XGJ-2016-28-6, language=EN, fundingSource=Provincial Education Reform Project of Jiangxi Provincial Department of Education(XGJ-2016-28-6), fundOrder=null, country=null), Fund(id=1205931312402199273, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, awardId=XGJ-2016-28-6, language=CN, fundingSource=江西省教育厅省级教改资助项目(XGJ-2016-28-6), fundOrder=null, country=null), Fund(id=1205931312502862572, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, awardId=JXJG-09-63-3, language=EN, fundingSource=Teaching Research Project of Universities in Jiangxi Province(JXJG-09-63-3), fundOrder=null, country=null), Fund(id=1205931312620303090, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, awardId=JXJG-09-63-3, language=CN, fundingSource=江西省高等学校教学研究资助项目(JXJG-09-63-3), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1205931306555339198, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, xref=null, ext=[AuthorCompanyExt(id=1205931306563727808, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, companyId=1205931306555339198, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=College of Intelligent Manufacturing Industry, Jiangxi University of Engineering, Xinyu 338000, China), AuthorCompanyExt(id=1205931306576310722, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, companyId=1205931306555339198, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=江西工程学院智能制造产业学院,新余 338000)])], figs=[ArticleFig(id=1205931308476330573, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 1, caption=
Traditional IPT-PLL[7], figureFileSmall=TQ3YLz/mwa/WnqveZ7YQ5A==, figureFileBig=c+QzMWFKZ9wsDsTsXU7Z4w==, tableContent=null), ArticleFig(id=1205931308576993875, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图1, caption=
传统IPT-PLL结构[7], figureFileSmall=TQ3YLz/mwa/WnqveZ7YQ5A==, figureFileBig=c+QzMWFKZ9wsDsTsXU7Z4w==, tableContent=null), ArticleFig(id=1205931308816069214, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 2, caption=
Bode plot of IPT-PLL transfer functions, figureFileSmall=RmMfQCfa5TKwrlKRGRNuaQ==, figureFileBig=+xh3nfTu32vueKshBSTbag==, tableContent=null), ArticleFig(id=1205931308929315429, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图2, caption=
IPT-PLL传递函数伯德图, figureFileSmall=RmMfQCfa5TKwrlKRGRNuaQ==, figureFileBig=+xh3nfTu32vueKshBSTbag==, tableContent=null), ArticleFig(id=1205931309055144560, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 3, caption=
Block diagram of modified IPT-PLL, figureFileSmall=Ly6RhVYd+K1m2ZsCEdrzmQ==, figureFileBig=0nQeTwemUPmNo6IF+v4TeQ==, tableContent=null), ArticleFig(id=1205931310279881332, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图3, caption=
改进IPT-PLL框图, figureFileSmall=Ly6RhVYd+K1m2ZsCEdrzmQ==, figureFileBig=0nQeTwemUPmNo6IF+v4TeQ==, tableContent=null), ArticleFig(id=1205931310380544635, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 4, caption=
Bode plots of approximation of different fractional-order delay links by Nm-degree interpolation polynomials, figureFileSmall=pGRla4wN7vT5kdf5C/rgNw==, figureFileBig=CZE7MojjjEFqplpd+r1LGQ==, tableContent=null), ArticleFig(id=1205931310456042114, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图4, caption=
不同Nm次插值多项式逼近不同分数阶延时环节伯德图, figureFileSmall=pGRla4wN7vT5kdf5C/rgNw==, figureFileBig=CZE7MojjjEFqplpd+r1LGQ==, tableContent=null), ArticleFig(id=1205931310560899718, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 5, caption=
Implementation method of T/4 delay with frequency adaptivity, figureFileSmall=3jiFdK97qljH3+HJgg86Rg==, figureFileBig=J9ITvGAr5B7kmzmzQxbjNw==, tableContent=null), ArticleFig(id=1205931310657368715, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图5, caption=
具有频率适应性的T/4延时实现方法, figureFileSmall=3jiFdK97qljH3+HJgg86Rg==, figureFileBig=J9ITvGAr5B7kmzmzQxbjNw==, tableContent=null), ArticleFig(id=1205931310753837712, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 6, caption=
Linear model of modified IPT-PLL, figureFileSmall=GuTXENXf61MY5Lv6KpY6AQ==, figureFileBig=ddf7ElMYFWC1J1JJkBxjKQ==, tableContent=null), ArticleFig(id=1205931310850306712, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图6, caption=
改进IPT-PLL线性模型, figureFileSmall=GuTXENXf61MY5Lv6KpY6AQ==, figureFileBig=ddf7ElMYFWC1J1JJkBxjKQ==, tableContent=null), ArticleFig(id=1205931310950970012, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 7, caption=
Curve of PM of modified IPT-PLL vs b, figureFileSmall=Gekq8E/O32CojCGvr2tbCw==, figureFileBig=IRIYyIfgkBfx3CufA2s9rw==, tableContent=null), ArticleFig(id=1205931311051633315, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图7, caption=
改进IPT-PLL的PM关于b的变化曲线, figureFileSmall=Gekq8E/O32CojCGvr2tbCw==, figureFileBig=IRIYyIfgkBfx3CufA2s9rw==, tableContent=null), ArticleFig(id=1205931311148102315, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 8, caption=
Bode plot of PLL open-loop transfer function under PI regulator, figureFileSmall=GBE0PRTiDLNyG63gfnZa2g==, figureFileBig=HAopw71wOrZXeCRUQSGSig==, tableContent=null), ArticleFig(id=1205931311282320048, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图8, caption=
PI调节器下PLL开环传递函数伯德图, figureFileSmall=GBE0PRTiDLNyG63gfnZa2g==, figureFileBig=HAopw71wOrZXeCRUQSGSig==, tableContent=null), ArticleFig(id=1205931311395566264, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 9, caption=
Phase-locked waveforms of dynamic grid voltage, figureFileSmall=OJ6q97Fw9uvgZFKtSfTfbA==, figureFileBig=fmmBGSl66Ko8ys52gxWlnw==, tableContent=null), ArticleFig(id=1205931311529783998, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图9, caption=
电网电压动态锁相波形, figureFileSmall=OJ6q97Fw9uvgZFKtSfTfbA==, figureFileBig=fmmBGSl66Ko8ys52gxWlnw==, tableContent=null), ArticleFig(id=1205931311634641605, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Fig. 10, caption=
Comparative experiment waveforms with DC bias, figureFileSmall=6Gqm9gatIsxyqVz+X+oz/w==, figureFileBig=eljNq4Cjq/+EKkEWj9/7Ug==, tableContent=null), ArticleFig(id=1205931311739499209, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=图10, caption=
含直流偏置的对比实验波形, figureFileSmall=6Gqm9gatIsxyqVz+X+oz/w==, figureFileBig=eljNq4Cjq/+EKkEWj9/7Ug==, tableContent=null), ArticleFig(id=1205931311852745424, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=EN, label=Tab. 1, caption=
Lagrange interpolation polynomial coefficients of fractional-order delay link
, figureFileSmall=null, figureFileBig=null, tableContent=
多项数 系数 | Nm=1 | Nm=2 | Nm=3 |
| d(0) | 1−F | (F−1)(F−2)/2 | −(F−1)(F−2)(F−3)/6 |
| d(1) | F | −F(F−2) | F(F−2)(F−3)/2 |
| d(2) | | F(F−1)/2 | −F(F−1) (F−3)/2 |
| d(3) | | | F(F−1)(F−2)/6 |
), ArticleFig(id=1205931311986963155, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828032305664142, language=CN, label=表1, caption=
分数阶延时环节拉格朗日插值多项式系数
, figureFileSmall=null, figureFileBig=null, tableContent=
多项数 系数 | Nm=1 | Nm=2 | Nm=3 |
| d(0) | 1−F | (F−1)(F−2)/2 | −(F−1)(F−2)(F−3)/6 |
| d(1) | F | −F(F−2) | F(F−2)(F−3)/2 |
| d(2) | | F(F−1)/2 | −F(F−1) (F−3)/2 |
| d(3) | | | F(F−1)(F−2)/6 |
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