Accuracy analysis of the zero-order hold model for digital pulse width modulation

Junpeng Ma, Xiongfei Wang, Frede Blaabjerg, Lennart Harnefors, Wensheng Song

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

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Abstract

This paper examines the accuracy of the zero-order hold (ZOH) model of the digital pulsewidth modulator (DPWM). The influence of the computational delay on the precision of this equivalent DPWM model is discussed in detail. A compensation method is proposed to compensate the deviation of this DPWM model for accurately calculating the stability region with different computational delay and duty-cycle update modes. Simulation and experimental tests are executed to verify the correctness of theoretical analysis.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages9
Place of PublicationUSA
PublisherIEEE Press
Publication dateOct 2017
Pages10826-10834
ISBN (Print)978-1-5090-2999-0
ISBN (Electronic)978-1-5090-2998-3
DOIs
Publication statusPublished - Oct 2017
Event2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, Ohio, United States
Duration: 1 Oct 20175 Oct 2017

Conference

Conference2017 IEEE Energy Conversion Congress and Exposition (ECCE)
CountryUnited States
CityCincinnati, Ohio
Period01/10/201705/10/2017
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

Keywords

  • Compensation method
  • Model accuracy
  • Digital pulse width modulator
  • ZOH
  • Stability analysis

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