Communication-free control concept for operating a low voltage island grid

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

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Details

Original languageEnglish
Title of host publicationIEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)9798350327748
Publication statusPublished - 2023
Event2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023 - Auckland, New Zealand
Duration: 21 Nov 202324 Nov 2023

Publication series

Name2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023
ISSN (Print)2378-8534
ISSN (electronic)2378-8542

Abstract

To ensure a communication-free island grid operation, a control concept has already been proposed in the literature. This control concept uses state machines implemented within smart meters at each household and makes use of grid-forming inverters having batteries and secondary control in grid-forming inverters. During an island grid operation, it is necessary to keep the state of charge of the batteries of the grid-forming inverters within a permitted band, otherwise, the grid-forming inverters will lose its primary energy source and can not form anymore the grid by a reference voltage. Besides that, it is also important to consider the rated power respectively the maximum current of the grid-forming inverters to prevent the semiconductors from damage. Measures have to be taken in cases of an overcurrent. It is a problem to limit the current of a grid-forming inverter when at the same time the grid power balance has to be fulfilled and other inverters are not able to support the overloaded grid-forming inverter due to their limited battery capacities. This publication gives a solution in the form of an extension of the already presented control concept of how to overcome this problem and validates that through an RMS simulation, carried out in PowerFactory.

Keywords

    frequency control, grid-forming inverter, island operation, secondary control

ASJC Scopus subject areas

Sustainable Development Goals

Cite this

Communication-free control concept for operating a low voltage island grid. / Bekker, Iwo; Hofmann, Lutz.
IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Bekker, I & Hofmann, L 2023, Communication-free control concept for operating a low voltage island grid. in IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023. 2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023, Auckland, New Zealand, 21 Nov 2023. https://doi.org/10.1109/ISGTAsia54891.2023.10372805
Bekker, I., & Hofmann, L. (2023). Communication-free control concept for operating a low voltage island grid. In IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023 (2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISGTAsia54891.2023.10372805
Bekker I, Hofmann L. Communication-free control concept for operating a low voltage island grid. In IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023. Institute of Electrical and Electronics Engineers Inc. 2023. (2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023). doi: 10.1109/ISGTAsia54891.2023.10372805
Bekker, Iwo ; Hofmann, Lutz. / Communication-free control concept for operating a low voltage island grid. IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2023).
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