Home Journals Articles Updates About
CN
image
收藏切换
Active Damping Method Based on ${H}_{\infty }$ Filter of LCL Grid-connected Inverter
收藏切换
PDF
Run CHEN1, Jun ZENG1, Junfeng LIU2
Journal of Power Supply | 2024, 22(4) : 121 - 132
Less
收藏切换
Journal of Power Supply | 2024, 22(4): 121-132
• Renewable Energy System •
Active Damping Method Based on ${H}_{\infty }$ Filter of LCL Grid-connected Inverter
Full
Run CHEN1, Jun ZENG1, Junfeng LIU2
Affiliations
  • School of Automation Science and Engineering South China University of Technology Guangzhou 510640 China
Published: 2024-07-30 doi: 10.13234/j.issn.2095-2805.2024.4.121
Outline
收藏切换

Although the LCL filter has a good performance of suppressing high-frequency harmonics, it may cause problems such as resonance oscillation and instability. For an LCL grid-connected inverter, the conventional capacitor-current-feedback type active damping method can suppress the resonant peak effectively, at the cost of additional current sensors. Under this background, a novel active damping control strategy based on an H∞ filter is proposed. The state space model and process noise model of the LCL filter are derived to solve the H∞ filter. The filter capacitor current can be estimated according to the information about grid current and the voltage at a point of common coupling, and feedback is further completed. The system damping is improved, and the estimation accuracy can be guaranteed even if parameter perturbations exist in the LCL filter. Simulation and experimental results show that the proposed method was insensitive to changes in the parameters of the LCL filter and the grid impedance, thereby verifying its feasibility and superiority.

LCL filter  /  grid-connected inverter  /  active damping  /  H∞ filter
Run CHEN, Jun ZENG, Junfeng LIU. Active Damping Method Based on ${H}_{\infty }$ Filter of LCL Grid-connected Inverter[J]. Journal of Power Supply, 2024 , 22 (4) : 121 -132 . DOI: 10.13234/j.issn.2095-2805.2024.4.121
Funding
Less
  • National Natural Science Foundation of China(62173148)
  • National Natural Science Foundation of China(51877085)
Appendix
Less
Year 2024 volume 22 Issue 4
PDF
310
85
Cite this Article
BibTeX
Article Info
doi: 10.13234/j.issn.2095-2805.2024.4.121
  • Receive Date：2021-12-10
  • Online Date：2025-07-21
  • Published：2024-07-30
Article Data
Affiliations
History
  • Received：2021-12-10
  • Revised：2022-03-08
  • Accepted：2022-04-06
Funding
National Natural Science Foundation of China(62173148)
National Natural Science Foundation of China(51877085)
Affiliations
    School of Automation Science and Engineering South China University of Technology Guangzhou 510640 China
References
Share
https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2024.4.121
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
010-62199257
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