A variable frequency internal model controller inspired by synchronverter theory

Pietro Lorenzetti, George Weiss

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

Abstract

We investigate a new class of controllers to solve the regulator problem for single-input single-output stable uncertain linear plants, when the signals are a finite superposition of sinusoids with uncertain frequencies (including constants). For this purpose, we formulate a novel type of nonlinear internal model: including a third order synchronverter model in the controller algorithm, we are able to exploit the well-known self-synchronizing feature of the synchronverters, making it possible to solve the regulator problem with little information on the signals (uncertain frequencies), and almost no information on the plant, which is only required to be stable. For instance, the same controller works both for the plant P and for the plant-P, and also after a step change in the signals' frequencies (within reasonable bounds), a surprising feature that is not true for traditional internal model-based controllers. The performance of the proposed controller is validated through three numerical examples of different nature.

Original languageEnglish
Title of host publication2022 American Control Conference, ACC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages715-720
Number of pages6
ISBN (Electronic)9781665451963
DOIs
StatePublished - 2022
Event2022 American Control Conference, ACC 2022 - Atlanta, United States
Duration: 8 Jun 202210 Jun 2022

Publication series

NameProceedings of the American Control Conference
Volume2022-June
ISSN (Print)0743-1619

Conference

Conference2022 American Control Conference, ACC 2022
Country/TerritoryUnited States
CityAtlanta
Period8/06/2210/06/22

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