Simplified Design of Phase Compensated Multi-Resonant Controllers for Grid-Connected Inverters

Moria Sassonker Elkayam, Noam Reichbach, Moshe Sitbon, Alon Kuperman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper concern with the design of phase compensation multi-resonant current controllers for AC converters based on system stability analysis for precise tracking and disturbance rejection. Phase compensation method is used to enhance the system stability in order to compensate the system total sampling and transport delay, since it can improve the phase response of resonant controller and consequently system phase margin. However, the phase compensation open loop system results in large anti-peaks around resonant frequencies, which may cause tracking error and system instability. This paper proposes a simpler design of phase compensated multi-resonant controller based on compensation of the phase lag of only the last resonant term of the multi-resonant controller in order to eliminate the anti-peaks effect and improve the system robustness and disturbance attenuation. Simulation results validate the proposed design methodology.

Original languageEnglish
Title of host publication2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics, COMPEL 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665410816
DOIs
StatePublished - 1 Jan 2022
Event23rd IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2022 - Tel-Aviv, Israel
Duration: 20 Jun 202223 Jun 2022

Publication series

NameProceedings of the IEEE Workshop on Computers in Power Electronics, COMPEL
Volume2022-June
ISSN (Print)1093-5142

Conference

Conference23rd IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2022
Country/TerritoryIsrael
CityTel-Aviv
Period20/06/2223/06/22

Keywords

  • current control
  • Inverters
  • multi-resonant controller
  • phase compensation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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