Home Journals Articles Updates About
CN
image
收藏切换
Research on Balance Control Strategy for Grid-connected Inverter System Under Unbalanced Grid
收藏切换
Aiwen QU  Member, CPSS1, 2, Daozhou WEI1, Jianhua XUE1
Journal of Power Supply | 2026, 24(6) : 220 - 231
Less
收藏切换
Journal of Power Supply | 2026, 24(6): 220-231
• Power Electronic Dominated Power Systems •
Research on Balance Control Strategy for Grid-connected Inverter System Under Unbalanced Grid
Full
Aiwen QU  Member, CPSS1, 2, Daozhou WEI1, Jianhua XUE1
Affiliations
  • 1.College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
  • 2.Fujian Key Laboratory of New Energy Generation and Power Conversion, Fuzhou 350108, China
Published: 2026-06-30 doi: 10.13234/j.issn.2095-2805.2026.6.220
Outline
收藏切换

Under an unbalanced power grid, the grid-connected inverter system may experience an imbalance in grid-connected current or load voltage. To achieve a grid-connected current balance or a load voltage balance in the grid-connected inverter system under linear and symmetrical load, a balance control strategy based on a negative-sequence compensation algorithm is proposed. On the basis of adding a compensation impedance device between the local load and the point of common coupling (PCC), the positive- and negative-sequence components of current on the inverter side are controlled by the reference value of output voltage from the inverter, which is generated by superimposing the positive-sequence loop output with the negative-sequence compensation loop output with different balance control objectives, so as to achieve the balance control of these objectives. The reference values of the positive- and negative-sequence current loops on the inverter side are obtained using the grid-side current loop or the local load identification algorithm. Finally, the feasibility and the effectiveness of the proposed strategy were verified by simulation and experimental results.

Unbalanced grid  /  grid-connected inverter system  /  grid-connected current balance  /  load voltage balance  /  negative-sequence compensation
屈艾文中国电源学会会员, 韦道洲, 薛建华. 不平衡电网下并网逆变系统平衡控制策略研究. 电源学报, 2026 , 24 (6) : 220 -231 . DOI: 10.13234/j.issn.2095-2805.2026.6.220
Aiwen QU, Daozhou WEI, Jianhua XUE. Research on Balance Control Strategy for Grid-connected Inverter System Under Unbalanced Grid[J]. Journal of Power Supply, 2026 , 24 (6) : 220 -231 . DOI: 10.13234/j.issn.2095-2805.2026.6.220
Funding
Less
  • Natural Science Foundation of Fujian Province(2020J01508)
Appendix
Less
Year 2026 volume 24 Issue 6
32
6
Cite this Article
BibTeX
Article Info
doi: 10.13234/j.issn.2095-2805.2026.6.220
  • Receive Date：2024-05-25
  • Online Date：2026-10-29
  • Published：2026-06-30
Article Data
Affiliations
History
  • Received：2024-05-25
  • Revised：2024-08-06
  • Accepted：2024-09-02
Funding
Natural Science Foundation of Fujian Province(2020J01508)
Affiliations
    1.College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
    2.Fujian Key Laboratory of New Energy Generation and Power Conversion, Fuzhou 350108, China
References
Share
https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2026.6.220
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House