Asymmetric current control of grid connected 3-phase cascaded h-bridge multilevel inverter

Taha Lahlou, Markus Herzog, Nagendra Ningappa Badiger, Hans Geor Herzog

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

Abstract

A flexible current control scheme is proposed based on three phase symmetrical component extraction for the control of cascaded H-Bridge multilevel inverter in grid connected battery storage application. To drive and compensate the unbalanced currents in grid tie operation, the proposed method provides more flexibility as compared to the classic vector oriented current control scheme by means of injecting or extracting unequal magnitudes of currents in each phase. Unbalanced line currents are decomposed into their symmetrical sequence components. Filter based extracted positive, negative and zero sequence components are controlled separately by means of PI controllers in rotating dq-reference frame. The control method simulation results in MATLAB and Simulink are validated with hardware measurements.

Original languageEnglish
Title of host publicationPCIM Europe Conference Proceedings
EditorsAchim Scharf
PublisherMesago PCIM GmbH
Pages364-371
Number of pages8
ISBN (Print)9783800746460
StatePublished - 2018
EventInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2018 - Nuremberg, Germany
Duration: 5 Jun 20187 Jun 2018

Publication series

NamePCIM Europe Conference Proceedings
ISSN (Electronic)2191-3358

Conference

ConferenceInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2018
Country/TerritoryGermany
CityNuremberg
Period5/06/187/06/18

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