Six-Level DC-DC Flying Capacitor Converter Voltage Balancing Dynamics Analysis for Different Carrier-Based Modulation Strategies

Ruslan Polichshuk, Borish Reznikov, Alex Ruderman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

N atural balancing in Flying Capacitor Converters (FCC) is typically analyzed for appropriate lead (or lag) carrier-based Phase Shifted Pulse Width Modulation (PS-PWM) strategy. However, multiple PS PWM strategies are possible by different carrier orders. The paper presents a comprehensive analysis of natural balancing properties of six -level DC-DC FCC considering all PS- PWM strategies possible by carrier order combinatorics. The time domain analysis uses stitching of piece-wise analytical solutions for consecutive switching intervals in conjunction with a small parameter approximation. Simple analytical solutions for natural balancing frequencies and decay factors clearly show dependences on converter parameters, DC voltage reference and switching frequency. Classic lead (lag) PS-PWM proves to be the best among possible PS-PWM strategies from the balancing rate perspective.

Original languageEnglish
Title of host publicationSPEEDAM 2018 - Proceedings
Subtitle of host publicationInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages685-690
Number of pages6
ISBN (Print)9781538649411
DOIs
Publication statusPublished - Aug 23 2018
Event2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2018 - Amalfi, Italy
Duration: Jun 20 2018Jun 22 2018

Publication series

NameSPEEDAM 2018 - Proceedings: International Symposium on Power Electronics, Electrical Drives, Automation and Motion

Other

Other2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2018
CountryItaly
CityAmalfi
Period6/20/186/22/18

Keywords

  • Modulation Strategy
  • Multilevel Converters
  • Pulse Width Modulation
  • Voltage Source Converter

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization

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