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Voltage Compensation Control for Dynamic Voltage Restorer Based on Cascaded H-bridge Converter
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Xuqing TANG, Junpeng MA  Member, CPSS, Xianyong XIAO
Journal of Power Supply | 2025, 23(3) : 15 - 24
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Journal of Power Supply | 2025, 23(3): 15-24
• Special Issue on Analysis and Control of Power Quality in New Power Systems •
Voltage Compensation Control for Dynamic Voltage Restorer Based on Cascaded H-bridge Converter
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Xuqing TANG, Junpeng MA  Member, CPSS, Xianyong XIAO
Affiliations
  • College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Published: 2025-05-30 doi: 10.13234/j.issn.2095-2805.2025.3.15
Outline
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Voltage sag is one of the main power quality problems, and dynamic voltage restorers (DVRs) provide an effective solution. Since the traditional DVRs are unsuitable for medium-voltage applications, a high-voltage direct-connect DVR based on a cascaded H-bridge multilevel converter is introduced. To enhance the response speed and compensation accuracy of the system, a dq-axis decoupling strategy for the AC voltage compensation control of DVR is proposed. Meanwhile, a carrier phase shifted pulse width modulation strategy with voltage offset injection is also employed to balance the DC-side capacitor voltage of the cascaded H-bridge, thus ensuring the safety and stability of the system. Finally, the proposed DVR and the corresponding control algorithm are modeled and simulated by MATLAB/Simulink, demonstrating the effectiveness and feasibility of the approach.

Dynamic voltage restorer (DVR)  /  cascaded H-bridge multilevel converter  /  dq-axis decoupling control  /  capacitor voltage balance
唐绪青, 马俊鹏中国电源学会会员, 肖先勇. 基于级联H桥变流器的动态电压恢复器电压补偿控制. 电源学报, 2025 , 23 (3) : 15 -24 . DOI: 10.13234/j.issn.2095-2805.2025.3.15
Xuqing TANG, Junpeng MA, Xianyong XIAO. Voltage Compensation Control for Dynamic Voltage Restorer Based on Cascaded H-bridge Converter[J]. Journal of Power Supply, 2025 , 23 (3) : 15 -24 . DOI: 10.13234/j.issn.2095-2805.2025.3.15
Funding
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  • Science and Technology Project of China Southern Power Grid Corporation(090000KC23020073)
Appendix
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Year 2025 volume 23 Issue 3
55
7
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.3.15
  • Receive Date：2024-10-31
  • Online Date：2026-10-26
  • Published：2025-05-30
Article Data
Affiliations
History
  • Received：2024-10-31
  • Revised：2025-02-11
  • Accepted：2025-03-01
Funding
Science and Technology Project of China Southern Power Grid Corporation(090000KC23020073)
Affiliations
    College of Electrical Engineering, Sichuan University, Chengdu 610065, China
References
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