Reliability Assessment of Hybrid Capacitor Bank Using Electrolytic- and Film-Capacitors in Three-Level Neutral-Point-Clamped Inverters

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

3 Citations (Scopus)

Abstract

Hybrid capacitor banks using electrolytic capacitors (E-Caps) and film capacitors (F-Caps) provide a cost-effective solution for DC links. However, the hybrid ratio between two types of capacitors is mostly experience based. This paper studies the quantitative solution to size the hybrid ratio for capacitor banks from a reliability point of view. Considering the parasitic parameters and thermal inertia of individual capacitors in a bank, an analytical model to obtain the electro-thermal performance for the individual type of capacitor is proposed. The quantitative relationship between the hybrid ratio and capacitor-bank reliability is acquired by applying a mission profile based reliability analysis. In addition, a DC-link capacitor bank in three-level neutral-point-clamped inverter is designed and implemented to validate the accuracy of the proposed method.
Original languageEnglish
Title of host publicationProceedings of 2019 IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019)
Number of pages7
Place of PublicationUSA
PublisherIEEE Press
Publication dateMar 2019
Pages2826-2832
Article number8721934
ISBN (Print)978-1-5386-8331-6
ISBN (Electronic)978-1-5386-8330-9
DOIs
Publication statusPublished - Mar 2019
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
CountryUnited States
CityAnaheim
Period17/03/201921/03/2019
SponsorIEEE Industry Applications Society (IAS), IEEE Power Electronics Society (PELS), Power Sources Manufacturers Association (PSMA)
SeriesIEEE Applied Power Electronics Conference and Exposition (APEC)
ISSN2470-6647

    Fingerprint

Keywords

  • Electro-thermal model
  • Hybrid capacitor bank
  • Mission profile
  • Reliability assessment
  • Three-level neutral-point-clamped (3L-NPC) inverter

Cite this

Chen, M., Wang, H., Wang, H., Blaabjerg, F., Wang, X., & Pan, D. (2019). Reliability Assessment of Hybrid Capacitor Bank Using Electrolytic- and Film-Capacitors in Three-Level Neutral-Point-Clamped Inverters. In Proceedings of 2019 IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019) (pp. 2826-2832). [8721934] IEEE Press. IEEE Applied Power Electronics Conference and Exposition (APEC) https://doi.org/10.1109/APEC.2019.8721934