Unidirectional DC/DC modular multilevel converter for offshore windfarm with the control strategy based on stationary frame

This paper presents the design and control of an advanced unidirectional DC/DC modular multilevel converter (MMC) that facilitate the integration of off-shore windfarms with the high-voltage direct current (HVDC) transmission system. The proposed converter deploys a single-phase MMC inverter coupled...

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Bibliographic Details
Published in:Journal of engineering (Stevenage, England) England), 2019-06, Vol.2019 (17), p.4309-4314
Main Authors: Liu, He, Dahidah, Mohamed, Naayagi, Ramasamy Thaiyal, Armstrong, Matthew, Yu, James
Format: Article
Language:English
Subjects:
advanced unidirectional DC/DC modular multilevel converter
control system synthesis
conventional dq control method
DC-DC power convertors
high-voltage direct current transmission system
HVDC power transmission
invertors
multiple medium frequency transformers
offshore installations
offshore windfarm
power generation control
power transformers
rectifiers
series-connected rectifier modules
single-phase MMC
stationary reference frame
The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)
wind power plants
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Summary:This paper presents the design and control of an advanced unidirectional DC/DC modular multilevel converter (MMC) that facilitate the integration of off-shore windfarms with the high-voltage direct current (HVDC) transmission system. The proposed converter deploys a single-phase MMC inverter coupled with series-connected rectifier modules through multiple medium frequency transformers. Unlike the conventional dq control method, which involves multiple transformations, this paper also proposes a simple control strategy that directly acts on the AC output of the MMC, under the stationary reference frame.
ISSN:2051-3305
2051-3305
DOI:10.1049/joe.2018.8003