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Neutral-point Potential Balance Unweighted Factor Model Predictive Control of Three-level PFC Based on Double Vectors
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Manman GAO1, Shanshan LONG1, Fei WANG2, Chaoliang DANG2, 3
Journal of Power Supply | 2024, 22(1) : 41 - 48
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Journal of Power Supply | 2024, 22(1): 41-48
• AC-DC Converters •
Neutral-point Potential Balance Unweighted Factor Model Predictive Control of Three-level PFC Based on Double Vectors
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Manman GAO1, Shanshan LONG1, Fei WANG2, Chaoliang DANG2, 3
Affiliations
  • 1 School of Intelligent Manufacturing and Technology Shijiazhuang Institute of Technology Shijiazhuang 050200 China
  • 2 School of Electrical Engineering Xi'an University of Technology Xi'an 710054 China
  • 3 State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 China
Published: 2024-01-30 doi: 10.13234/j.issn.2095-2805.2024.1.41
Outline
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A three-phase Vienna rectifier is taken as the research object in this paper. In view of the difficulty in selecting the weight factor when the finite control set model predictive control realizes the neutral-point potential balance control, as well as the problem of large current ripple on grid-side caused by the action of one single vector during the sampling period, an unweighted factor model predictive control strategy based on double vectors is proposed. First, a single-objective cost function based on power prediction is constructed, and the efficiency of single optimization is improved by sector division and unweighted factor. According to the fluctuation of neutral-point potential on DC side, the redundant small vector is selected to realize the unweighted factor neutral-point potential balance control. Then, based on the obtained optimal vector, the double-vector fixed switching frequency control is realized by combining with the zero vector. Finally, the proposed control strategy is verified on a hardware-in-the-loop platform based on RT-LAB from the aspects of steady state, transient state and neutral-point potential fluctuation, and results effectively prove its correctness and effectiveness.

Vienna rectifier  /  model predictive control  /  unweighted factor  /  neutral-point potential  /  fixed switching frequency
Manman GAO, Shanshan LONG, Fei WANG, Chaoliang DANG. Neutral-point Potential Balance Unweighted Factor Model Predictive Control of Three-level PFC Based on Double Vectors[J]. Journal of Power Supply, 2024 , 22 (1) : 41 -48 . DOI: 10.13234/j.issn.2095-2805.2024.1.41
Funding
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  • Science and Technology Project of Education Department of Hebei Province(QN2021408)
  • Youth Project of Shaanxi Science and Technology Plan Project(2022JQ-512)
Appendix
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Year 2024 volume 22 Issue 1
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.1.41
  • Receive Date：2022-07-26
  • Online Date：2025-07-21
  • Published：2024-01-30
Article Data
Affiliations
History
  • Received：2022-07-26
  • Revised：2022-10-14
  • Accepted：2022-10-20
Funding
Science and Technology Project of Education Department of Hebei Province(QN2021408)
Youth Project of Shaanxi Science and Technology Plan Project(2022JQ-512)
Affiliations
    1 School of Intelligent Manufacturing and Technology Shijiazhuang Institute of Technology Shijiazhuang 050200 China
    2 School of Electrical Engineering Xi'an University of Technology Xi'an 710054 China
    3 State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 China
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