Precise Inductor Current Ripple Distribution of Three-Level Active Neutral-Point-Clamped Inverter

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Abstract

In power electronic converters, the inductor current ripple affects the system power loss and should be minimized. This paper studies in detail the output filter inductor current ripple distribution of a three-level active neutral-point-clamped (3L-ANPC)inverter. The peak-to-peak current ripple per line cycle is precisely derived according to the modulation index. Then, the maximum current ripple is identified, and the concept of average current ripple is proposed to quantify the overall ripple level. An optimal operating point with minimum ripple level is found, and it is chosen as the nominal operation condition of the 3L-ANPC inverter. Simulations are performed in a case study to confirm the theoretical expectations.
Original languageEnglish
Title of host publicationProceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Number of pages8
Place of PublicationBusan, Korea (South)
PublisherIEEE Press
Publication dateMay 2019
Pages1952-1959
Article number8796961
ISBN (Print)978-1-7281-1612-9
ISBN (Electronic)978-89-5708-313-0
Publication statusPublished - May 2019
Event2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Conference

Conference2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
CountryKorea, Republic of
CityBusan
Period27/05/201930/05/2019
SeriesInternational Conference on Power Electronics
ISSN2150-6078

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Keywords

  • 3L-ANPC inverter
  • Inductor current ripple
  • Modulation index
  • Output filter

Cite this

Pan, D., Chen, M., Wang, X., Wang, H., Blaabjerg, F., & Wang, W. (2019). Precise Inductor Current Ripple Distribution of Three-Level Active Neutral-Point-Clamped Inverter. In Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) (pp. 1952-1959). [8796961] IEEE Press. International Conference on Power Electronics