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Effects of Different Zero-level Switching States on Loss Distribution of Three-level ANPC Converter
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Mingyue LIU, Chenchen WANG  Member, CPSS, Geye LU, Zhaoyang LI
Journal of Power Supply | 2026, 24(6) : 126 - 134
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Journal of Power Supply | 2026, 24(6): 126-134
• Power Converter Modeling and Control •
Effects of Different Zero-level Switching States on Loss Distribution of Three-level ANPC Converter
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Mingyue LIU, Chenchen WANG  Member, CPSS, Geye LU, Zhaoyang LI
Affiliations
  • School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
Published: 2026-06-30 doi: 10.13234/j.issn.2095-2805.2026.6.126
Outline
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For a neutral-point-clamped three-level converter with only one zero-level switching state, there exists a problem of unbalanced loss distribution in internal and external tubes, which seriously limits the converter capacity and power density. In comparison, an active neutral-point-clamped three-level converter with multiple redundant zero-level switching states has the capability of flexibly adjusting the loss distribution. All the zero-level switching states of the active neutral-point-clamped three-level converter that can ensure the normal operation of the converter are summarized, the commutation process in different zero-level switching states are analyzed in detail, and the loss distribution rule in different commutation modes is summed up. Then, the correctness of the loss distribution rule in each commutation mode was verified by simulation and experimental results.

Active neutral-point-clamped  /  three-level  /  carrier disposition pulse width modulation  /  loss equalization
刘明月, 王琛琛中国电源学会会员, 陆格野, 李赵烊. 不同零电平开关状态对三电平ANPC变换器损耗分布的影响. 电源学报, 2026 , 24 (6) : 126 -134 . DOI: 10.13234/j.issn.2095-2805.2026.6.126
Mingyue LIU, Chenchen WANG, Geye LU, Zhaoyang LI. Effects of Different Zero-level Switching States on Loss Distribution of Three-level ANPC Converter[J]. Journal of Power Supply, 2026 , 24 (6) : 126 -134 . DOI: 10.13234/j.issn.2095-2805.2026.6.126
Funding
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  • Beijing Natural Science Foundation(3222056)
  • National Natural Science Foundation of China(52207208)
Appendix
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Year 2026 volume 24 Issue 6
25
4
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.6.126
  • Receive Date：2024-07-14
  • Online Date：2026-10-29
  • Published：2026-06-30
Article Data
Affiliations
History
  • Received：2024-07-14
  • Revised：2024-08-18
  • Accepted：2024-08-31
Funding
Beijing Natural Science Foundation(3222056)
National Natural Science Foundation of China(52207208)
Affiliations
    School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
References
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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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