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Novel Switched Capacitor Quasi-resonant Multi-level Inverter
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Guozhuang LIANG1, Chenhao NIE1, Hanlei TIAN2
Journal of Power Supply | 2024, 22(2) : 121 - 131
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Journal of Power Supply | 2024, 22(2): 121-131
DC-AC Inverters
Novel Switched Capacitor Quasi-resonant Multi-level Inverter
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Guozhuang LIANG1, Chenhao NIE1, Hanlei TIAN2
Affiliations
  • 1 School of Electrical Engineering Hebei University of Science and Technology Shijiazhuang 050018 China
  • 2 School of Electrical Engineering Sichuan University Chengdu 610065 China
Published: 2024-03-30 doi: 10.13234/j.issn.2095-2805.2024.2.121
Outline
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Aimed at the problems of current spikes and voltage fluctuations in the charging process of existing multi-level inverters, a novel quasi-resonant five-level inverter is proposed in this paper. A carrier-stacked pulse width modulation scheme is adopted, and the switched capacitor technology is combined with the traditional five-level inverter, which reduces the accumulated level at the previous stage and realizes the output of five-level voltage. In addition, the capacitor charging process and the series inductance resonate to eliminate current spikes and voltage fluctuations, while reducing the heating problem of the capacitor and prolonging the service life of the circuit. Finally, simulation verification is carried out, and results prove the correctness and feasibility of the scheme for the proposed inverter structure.

Multi-level inverter  /  switched capacitor  /  carrier-stacked pulse width modulation  /  quasi-resonance
Guozhuang LIANG, Chenhao NIE, Hanlei TIAN. Novel Switched Capacitor Quasi-resonant Multi-level Inverter[J]. Journal of Power Supply, 2024 , 22 (2) : 121 -131 . DOI: 10.13234/j.issn.2095-2805.2024.2.121
  • National Natural Science Foundation of China(61876059)
  • Hebei Province General Aviation Additive Manufacturing Collaborative Innovation Center Open Fund Project(2018DQ01)
Year 2024 volume 22 Issue 2
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Article Info
doi: 10.13234/j.issn.2095-2805.2024.2.121
  • Receive Date:2021-03-12
  • Online Date:2025-07-21
  • Published:2024-03-30
Article Data
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History
  • Received:2021-03-12
  • Revised:2021-09-08
  • Accepted:2021-10-13
Funding
National Natural Science Foundation of China(61876059)
Hebei Province General Aviation Additive Manufacturing Collaborative Innovation Center Open Fund Project(2018DQ01)
Affiliations
    1 School of Electrical Engineering Hebei University of Science and Technology Shijiazhuang 050018 China
    2 School of Electrical Engineering Sichuan University Chengdu 610065 China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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
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