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Unidirectional DC/DC Modular Multilevel Converter for Offshore Windfarm with the Control Strategy Based on Stationary Frame

Lookup NU author(s): He Liu Liu, Dr Mohamed Dahidah, Dr Matthew Armstrong

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This is the authors' accepted manuscript of an article that has been published in its final definitive form by IET, 2019.

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Abstract

This paper presents the design and control of an advancedunidirectional DC/DC Modular Multilevel Converter (MMC)that facilitate the integration of off-shore windfarms with theHigh-Voltage Direct Current (HVDC) transmission system.The proposed converter deploys a single-phase MMC invertercoupled with series-connected rectifier modules throughmultiple medium frequency transformers. Unlike theconventional d-q control method, which involves multipletransformations, this paper also proposes a simple controlstrategy that directly act on the ac output of the MMC, underthe stationary reference frame.

Publication metadata

Author(s): Liu H, Dahidah MSA, Naayagi RT, Armstrong M, Yu J

Publication type: Article

Publication status: Published

Journal: IET Journal of Engineering

Year: 2019

Volume: 2019

Issue: 17

Pages: 4309-4314

Online publication date: 17/06/2019

Acceptance date: 27/07/2018

Date deposited: 03/09/2018

ISSN (electronic): 2051-3305

Publisher: IET

URL: https://doi.org/10.1049/joe.2018.8003

DOI: 10.1049/joe.2018.8003

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