Article(id=1309639768007340446, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1309639744087229134, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1729008000000, receivedDateStr=2024-10-16, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790172052622, onlineDateStr=2026-09-23, pubDate=1768838400000, pubDateStr=2026-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790172052622, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790172052622, creator=13701087609, updateTime=1790172052622, updator=13701087609, issue=Issue{id=1309639744087229134, tenantId=1146029695717560320, journalId=1146119893612605453, year='2026', volume='44', issue='1', pageStart='1', pageEnd='142', issueExtLink='null', onlineDate='null', pubDate='1768838400000', pubDateStr='2026-01-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1790172046920, creator='13701087609', updateTime=1790231697005, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309889934790590725, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1309639744087229134, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309889934790590726, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1309639744087229134, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=106, endPage=113, ext={EN=ArticleExt(id=1309639768187695519, articleId=1309639768007340446, tenantId=1146029695717560320, journalId=1146119893612605453, language=EN, title=Improved capacitor voltage full feedback scheme for three-phase LCL-type inverter to suppress current distortion, columnId=null, journalTitle=Renewable Energy Resources, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The capacitor voltage full feedback scheme employed in LCL-type grid-connected inverters can suppress grid background harmonics. However, the existing schemes exhibit insufficient suppression capability for high-order harmonics. To address this problem, this paper proposes an improved harmonic suppression strategy. By introducing a compensation link into both the unit feedback path and the second-derivative feedback path, the phase deviation caused by neglecting the control delay is compensated. The improved capacitor voltage full feedback method more closely approximates the ideal effect, particularly in the high-frequency band. Furthermore, by introducing a weighting coefficient into the compensation link of the second -derivative feedback path, the equivalent resistance induced by the capacitor voltage full feedback is reshaped, thereby ensuring stable system operation. Experimental results demonstrate that the grid -connected inverter utilizing the proposed improved harmonic suppression method can effectively suppress the grid current distortion caused by background harmonics in the grid voltage, showing particularly effective suppression for harmonics in the medium and high-frequency bands.

, authors=Tianrun Jiang, Jiaqing Liu, Mingzhe Zhu, Le Ge, authorsList=Tianrun Jiang, Jiaqing Liu, Mingzhe Zhu, Le Ge, authorCompany=null, correspAuthors=Le Ge, 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=1309639768405799328, articleId=1309639768007340446, tenantId=1146029695717560320, journalId=1146119893612605453, language=CN, title=三相LCL型并网逆变器电容电压全反馈改进并网电流谐波抑制方法, columnId=0, journalTitle=可再生能源, columnName=, runingTitle=null, highlight=null, articleAbstract=

LCL型并网逆变器采用电容电压全反馈方案可以抑制电网背景谐波,但现有方案对高次谐波抑制能力不足。文章提出一种改进谐波抑制策略,通过在单位反馈及二次微分反馈通路中分别引入一个补偿环节,补偿因忽略控制延时而造成的相位偏差,改进后的电容电压全反馈方法在高频段更接近理想效果。此外,通过向二阶微分反馈通路的补偿环节中引入权重系数,对电容电压全反馈的等效电阻进行校正,保证系统的稳定运行。实验表明,采用所提改进谐波抑制方法的并网逆变器,能有效抑制电网电压中背景谐波引起的电网电流畸变,尤其在中、高频段谐波有着良好的抑制效果。

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葛乐(1982-),男,教授,研究方向为新型电力系统。E-mail:
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三相LCL型并网逆变器电容电压全反馈改进并网电流谐波抑制方法
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蒋天润 , 刘佳庆 , 竺明哲 , 葛乐
可再生能源 | 2026,44(1): 106-113
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三相LCL型并网逆变器电容电压全反馈改进并网电流谐波抑制方法
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蒋天润, 刘佳庆, 竺明哲, 葛乐
作者信息
  • 南京工程学院 电力工程学院,江苏 南京 211167
通讯作者:
葛乐(1982-),男,教授,研究方向为新型电力系统。E-mail:
Improved capacitor voltage full feedback scheme for three-phase LCL-type inverter to suppress current distortion
Tianrun Jiang, Jiaqing Liu, Mingzhe Zhu, Le Ge
Affiliations
  • School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
出版时间: 2026-01-20
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LCL型并网逆变器采用电容电压全反馈方案可以抑制电网背景谐波,但现有方案对高次谐波抑制能力不足。文章提出一种改进谐波抑制策略,通过在单位反馈及二次微分反馈通路中分别引入一个补偿环节,补偿因忽略控制延时而造成的相位偏差,改进后的电容电压全反馈方法在高频段更接近理想效果。此外,通过向二阶微分反馈通路的补偿环节中引入权重系数,对电容电压全反馈的等效电阻进行校正,保证系统的稳定运行。实验表明,采用所提改进谐波抑制方法的并网逆变器,能有效抑制电网电压中背景谐波引起的电网电流畸变,尤其在中、高频段谐波有着良好的抑制效果。

电容电压全反馈  /  并网逆变器  /  补偿环节  /  中、高频段谐波

The capacitor voltage full feedback scheme employed in LCL-type grid-connected inverters can suppress grid background harmonics. However, the existing schemes exhibit insufficient suppression capability for high-order harmonics. To address this problem, this paper proposes an improved harmonic suppression strategy. By introducing a compensation link into both the unit feedback path and the second-derivative feedback path, the phase deviation caused by neglecting the control delay is compensated. The improved capacitor voltage full feedback method more closely approximates the ideal effect, particularly in the high-frequency band. Furthermore, by introducing a weighting coefficient into the compensation link of the second -derivative feedback path, the equivalent resistance induced by the capacitor voltage full feedback is reshaped, thereby ensuring stable system operation. Experimental results demonstrate that the grid -connected inverter utilizing the proposed improved harmonic suppression method can effectively suppress the grid current distortion caused by background harmonics in the grid voltage, showing particularly effective suppression for harmonics in the medium and high-frequency bands.

capacitor voltage full feedback  /  grid-connected inverter  /  compensation link  /  medium and high-frequency band harmonics
蒋天润, 刘佳庆, 竺明哲, 葛乐. 三相LCL型并网逆变器电容电压全反馈改进并网电流谐波抑制方法. 可再生能源, 2026 , 44 (1) : 106 -113 .
Tianrun Jiang, Jiaqing Liu, Mingzhe Zhu, Le Ge. Improved capacitor voltage full feedback scheme for three-phase LCL-type inverter to suppress current distortion[J]. Renewable Energy Resources, 2026 , 44 (1) : 106 -113 .
  • 江苏省高等学校基础科学(自然科学)研究项目(22KJB470013)
  • 南京工程学院引进人才科研启动基金项目(YKJ202207)
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  • 接收时间:2024-10-16
  • 首发时间:2026-09-23
  • 出版时间:2026-01-20
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  • 收稿日期:2024-10-16
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江苏省高等学校基础科学(自然科学)研究项目(22KJB470013)
南京工程学院引进人才科研启动基金项目(YKJ202207)
作者信息
    南京工程学院 电力工程学院,江苏 南京 211167

通讯作者:

葛乐(1982-),男,教授,研究方向为新型电力系统。E-mail:
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