VFD-based Coordinated Centralized/decentralized Control to Support Offshore Electrical Power Systems with Wind Power Penetration

João Marcus Soares Callegari; Danilo Iglesias Brandao

doi:10.18618/REP.e202432

Authors

João Marcus Soares Callegari Universidade Federal de Minas Gerais https://orcid.org/0000-0001-6264-351X
Danilo Iglesias Brandao Universidade Federal de Minas Gerais https://orcid.org/0000-0002-5878-1167

DOI:

https://doi.org/10.18618/REP.e202432

Keywords:

Coordinated control, floating, production, storage, and offloading, power factor, variable frequency drives, voltage support

Abstract

This paper proposes a coordinated centralized/decentralized control designed to concomitantly manage the power factor and mitigate voltage variations at the main feeder of an oil and gas offshore platform. The centralized action (i.e., power factor control) is decoupled from the decentralized one (i.e., voltage support) due to the significant disparity in dynamics of the commands sent to the active front-end variable frequency drives (AFE-VFDs). The AFE-VFDs are embedded with a proposed V-Q inverse droop curve, while being remotely coordinated by a central controller using a low-bandwidth communication link. Unlike other strategies, the proposed control is effective in handling unplanned events and unpredictable disturbances. Simulations are conducted to compare the proposed strategy with a literature solution considering a typical Brazilian floating production storage and offloading platform, from Mero Oil Field.

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Author Biographies

João Marcus Soares Callegari, Universidade Federal de Minas Gerais

received the B.Sc. degree in electrical engineering from the Federal University of Viçosa, Brazil, in 2019, the M.Sc. degree in electrical engineering from the Federal Center of Technological Education of Minas Gerais, Brazil, in 2021, and the Ph.D. degree in electrical engineering at the Federal University of Minas Gerais, Brazil, in 2024. His current research and technical interests include the design and control of grid-connected multifunctional inverters, the reliability of power electronics-based systems, and AC microgrids. Mr. Callegari was the recipient of the President Bernardes Silver Medal in 2019 and the IEEE IAS CMD Student Thesis Contest 2022 (Non-PhD Category).

Danilo Iglesias Brandao, Universidade Federal de Minas Gerais

received the doctorate degree in electrical engineering from the State University of Campinas (Unicamp), Brazil, in 2015. He was visiting positions at Colorado School of Mines (2009 and 2013), Università degli Studi di Padova (2014) and Norwegian University of Science and Technology (2018 and 2020). He is currently an assistant professor at Federal University of Minas Gerais (UFMG), Brazil. His main research interests are control of grid-tied converters and microgrids. He is a member of SOBRAEP.

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