A Suppression Method For Inrush Current And Oscillation In Hybrid Three-Level ANPC With A Decoupling Capacitor

Hao Chen, Weimin Wu*, Dong Xu, Henry Chung, Frede Blaabjerg, Mohamed Orabi, Liang Yuan

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The hybrid three-level active neutral point clamped (HT-ANPC) converter is widely used in various industrial scenarios. In order to reduce the voltage stress of high-frequency switching transistors, the topology of HTANPC with a decoupling capacitor (HDT-ANPC) has been proposed. However, the low-frequency switching transistors in the HDT-ANPC topology will generate inrush current and oscillation at the commutation instant of the fundamental frequency. In this paper, the switching drive (SD) suppression method using the voltage difference as the reference quantity is proposed to protect components in the circuit and make the system work properly. This method dynamically increases the impedance of the circuit and it has no effect on the steady-state operation of the system. Finally, the effectiveness of the method is verified by simulation results.

Original languageEnglish
Title of host publication2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Number of pages6
PublisherIEEE (Institute of Electrical and Electronics Engineers)
Publication date2024
Pages726-731
ISBN (Print)979-8-3503-5134-7
ISBN (Electronic)979-8-3503-5133-0
DOIs
Publication statusPublished - 2024
Event10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia - Chengdu, China
Duration: 17 May 202420 May 2024

Conference

Conference10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Country/TerritoryChina
CityChengdu
Period17/05/202420/05/2024
SponsorChina Electrotechnical Society (CES), IEEE Power Electronics Society (PELS), Southwest Jiaotong University

Bibliographical note

Publisher Copyright:
© 2024 IEEE.

Keywords

  • HDT-ANPC
  • inrush current and oscillation
  • switching drive (SD)
  • The hybrid three-level active neutral point clamped(HT-ANPC) converter

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