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Research on Passivity-based Control Strategy for Load Resonant Soft-switching Grid-connected Inverter
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Yajing ZHANG  Member, CPSS1, Huanchen ZHANG1, Mian WANG2, Jianguo LI1, Shuang MA1, Jiuhe WANG1
Journal of Power Supply | 2025, 23(5) : 34 - 41
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Journal of Power Supply | 2025, 23(5): 34-41
• DC-AC Inverters •
Research on Passivity-based Control Strategy for Load Resonant Soft-switching Grid-connected Inverter
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Yajing ZHANG  Member, CPSS1, Huanchen ZHANG1, Mian WANG2, Jianguo LI1, Shuang MA1, Jiuhe WANG1
Affiliations
  • 1.School of Automation, Beijing Information Science & Technology University, Beijing 100192, China
  • 2.Institute of Science and Technology, China Three Gorges Corporation, Beijing 100038, China
Published: 2025-09-30 doi: 10.13234/j.issn.2095-2805.2025.5.34
Outline
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Load resonance soft-switching can effectively reduce the switching loss of single-phase grid-connected inverters, which is a research hotspot in high-frequency inverter applications. However, the traditional PI control strategy based on linear models is easy to be unstable under large signal disturbance, and the system output waveform is poor. Since the passivity-based control strategy based on the nonlinear theory can effectively improve the output and stability of the system, a passivity-based control strategy for a load resonant soft-switching inverter based on an Euler-Lagrange model is proposed. A single-phase full-bridge grid-connected inverter in unipolar BCM (boundary conduction mode) modulation mode is modeled in detail, and a passivity-based controller based on the damping injection method is designed. To verify the effectiveness of the proposed control strategy, a simulation model of the resonant soft-switching inverter is built, and this strategy is compared with the traditional PI control strategy under steady-state and transient conditions.

Single-phase grid-connected inverter  /  passivity-based control  /  BCM modulation  /  switching loss
张雅静中国电源学会会员, 张焕晨, 王勉, 李建国, 马爽, 王久和. 负载谐振软开关并网逆变器无源控制策略研究. 电源学报, 2025 , 23 (5) : 34 -41 . DOI: 10.13234/j.issn.2095-2805.2025.5.34
Yajing ZHANG, Huanchen ZHANG, Mian WANG, Jianguo LI, Shuang MA, Jiuhe WANG. Research on Passivity-based Control Strategy for Load Resonant Soft-switching Grid-connected Inverter[J]. Journal of Power Supply, 2025 , 23 (5) : 34 -41 . DOI: 10.13234/j.issn.2095-2805.2025.5.34
Funding
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  • National Natural Science Foundation of China(52107176; 52237008)
  • Natural Science Foundation of Beijing(3214061)
  • Promoting the Connotation Development of Colleges and Universities of Beijing Information Science and Technology University(2121YJPY215)
Appendix
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Year 2025 volume 23 Issue 5
69
17
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.5.34
  • Receive Date：2022-08-01
  • Online Date：2026-10-26
  • Published：2025-09-30
Article Data
Affiliations
History
  • Received：2022-08-01
  • Revised：2022-10-15
  • Accepted：2022-12-15
Funding
National Natural Science Foundation of China(52107176; 52237008)
Natural Science Foundation of Beijing(3214061)
Promoting the Connotation Development of Colleges and Universities of Beijing Information Science and Technology University(2121YJPY215)
Affiliations
    1.School of Automation, Beijing Information Science & Technology University, Beijing 100192, China
    2.Institute of Science and Technology, China Three Gorges Corporation, Beijing 100038, China
References
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