Comparative analysis of the effects of integral action and disturbance feedforward on current control of voltage-source converters

Ville Pirsto*, Jarno Kukkola, Marko Hinkkanen

*Corresponding author for this work

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

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Abstract

This paper presents a comparison between integral action and disturbance feedforward in current control of grid converters. The current controllers are designed directly in the discrete-time domain with the objective of similar reference-tracking and disturbance-rejection performance under nominal conditions.Partial compensation of time delays is included in the controller designs. The analytically and experimentally compared properties, in addition to reference tracking and disturbance rejection, are noise sensitivity and robustness to grid impedance variations. The controllers are found to have comparable dynamic performance, although the realized disturbance-rejection performance of the integrator-based controller is slightly better. The disturbance-feedforward-based controller is found to be less susceptible to current measurement noise at the cost of having an additional entry point for noise through the voltage measurement. The integrator-based controller is found more robust to grid impedance variations.
Original languageEnglish
Title of host publicationProceedings of the 23rd European Conference on Power Electronics and Applications, EPE’21 ECCE Europe
PublisherIEEE
Number of pages10
ISBN (Electronic)9789075815375
ISBN (Print)9781665433846
Publication statusPublished - 25 Oct 2021
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Power Electronics and Applications - Virtual, online, Ghent, Belgium
Duration: 6 Sep 202110 Sep 2021
Conference number: 23
http://www.epe2021.com/

Conference

ConferenceEuropean Conference on Power Electronics and Applications
Abbreviated titleEPE-ECCE Europe
Country/TerritoryBelgium
CityGhent
Period06/09/202110/09/2021
Internet address

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