HSS Modeling and Stability Analysis of Single-Phase PFC Converters

Guoqing Gao, Xiongfei Wang, Tianhua Zhu, Yicheng Liao, Jianli Tong

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

Abstract

The frequency coupling and low-frequency oscillations are common challenges faced by PFC converters in data centers. To reveal their mechanism, this paper proposes the systematic harmonic state space (HSS) modeling of the single-phase PFC converters and conducts the stability analysis on that basis. The HSS model is based on the linear time-periodic (LTP) theory, which can accurately reveal the frequency-coupling interactions. Besides, the developed HSS model is validated by the frequency scan. The stability analysis is performed and is shown to be consistent with the simulation results. In addition, a SISO equivalent impedance model of the single-phase PFC converters is proposed considering the frequency-coupling dynamics and the interaction with grid impedance, based on the MIMO impedance model derived from the HSS modeling.
Original languageEnglish
Title of host publicationConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Number of pages8
PublisherIEEE
Publication date1 Jan 2022
Pages1812-1819
ISBN (Electronic)978-1-6654-0688-8
DOIs
Publication statusPublished - 1 Jan 2022
Event37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022 - Houston, United States
Duration: 20 Mar 202224 Mar 2022

Conference

Conference37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022
Country/TerritoryUnited States
CityHouston
Period20/03/202224/03/2022
SponsorIEEE Power Electronics Society (PELS), Industry Applications Society (IAS), Power Sources Manufacturers Association (PSMA)
SeriesI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

Keywords

  • frequency coupling
  • harmonic state space
  • PFC converter
  • stability analysis

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