Sun, P orcid.org/0000-0001-8061-224X, Li, K orcid.org/0000-0001-6657-0522, Li, Y et al. (1 more author) (2020) DC voltage control for MMC-based railway power supply integrated with renewable generation. IET Renewable Power Generation, 14 (18). pp. 3679-3689. ISSN 1752-1424
Abstract
The full controllable electronic device based railway feeder station offers better power quality and more flexible configurations than conventional transformer based stations. This study investigates a modular multilevel converter (MMC)-based static frequency converter station with renewable energy access. Wind power generation is coupled into the station via DC link of the back to back converter. The dynamic single-phase traction load and intermittent renewable generation bring double frequency oscillation and large deviation problems to the DC link voltage. Special design considerations and control schemes are proposed for the MMC to stabilise DC link voltage by controlling the total number of total inserted modules. The proposed control scheme resolves the voltage oscillation issue caused by single-phase load and reduces the DC link voltage deviation under 10 MW step change. A series of device-based simulations validate the control scheme which realises a reliable coupling interface for connecting the renewable generation to the DC bus.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This item is protected by copyright. This is an author produced version of an article accepted for publication in IET Renewable Power Generation. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | renewable energy sources; wind power plants; power grids; voltage-source convertors; railway electrification; frequency convertors; voltage control; traction power supplies; railways; power supply quality |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Oct 2020 14:11 |
Last Modified: | 13 Apr 2021 14:54 |
Status: | Published |
Publisher: | Institution of Engineering and Technology (IET) |
Identification Number: | 10.1049/iet-rpg.2020.0132 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:166347 |