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Analysis, Control and Design of a Long-Lifetime AC-DC Bus Converter within a Nanogrid

  • Hao Wu
  • , Siu-Chung Wong
  • , C. K. Tse
  • , Qianhong Chen

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

In an AC-DC hybrid bus nanogrid, a bidirectional converter is commonly used to transfer energy between the single-phase AC system and the DC system with stable operation and long lifetime. Therefore, the single-phase AC-DC converter should be designed to avoid using the short lifetime electrolytic capacitor. In this paper, a bidirectional single-phase AC-DC PWM converter using an additional line-level AC storage capacitor as the AC-DC power balancing device is proposed. A condition for zero ripple DC bus voltage is established such that a small DC bus capacitor can be used. Both the AC-DC power balancing and DC bus filtering capacitors can be designed small without using electrolytic capacitor in order to extend the converter lifetime. A control strategy that minimizes the size of capacitance is proposed, analyzed and verified. Finally, the analysis is verified by numerical simulations and experimental measurements.
Original languageEnglish
Title of host publication2015 Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
PublisherIEEE
Pages1855-1860
ISBN (Print)978-1-4799-6735-3
DOIs
Publication statusPublished - Mar 2015
Externally publishedYes
Event30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015) - Charlotte Convention Center, Charlotte, United States
Duration: 15 Mar 201519 Mar 2015
http://www.apec-conf.org (unknown)

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2015
ISSN (Print)1048-2334

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015)
PlaceUnited States
CityCharlotte
Period15/03/1519/03/15
Internet address

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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