dc.contributor.author | Elahidoost, Atousa | |
dc.contributor.author | Tedeschi, Elisabetta | |
dc.date.accessioned | 2020-10-22T10:56:58Z | |
dc.date.available | 2020-10-22T10:56:58Z | |
dc.date.created | 2020-10-07T09:14:46Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | The Renewable Energies and Power Quality Journal (RE&PQJ). 2020, 18 . | en_US |
dc.identifier.issn | 2172-038X | |
dc.identifier.uri | https://hdl.handle.net/11250/2684454 | |
dc.description.abstract | The aim of this paper is to reduce the voltage oscillation of the HVDC cable in an offshore point-to-point configuration based on the modular multilevel converter. An optimization methodology based on semidefinite programming is proposed, which improves the DC voltage stability under the worst-case initial perturbation scenario. This goal is achieved by implementing a centralized optimal linear feedback controller, which guarantees Lyapunov stability margins while considering constraints on control inputs and state variables. The scope of this work is twofold. First, to analyze small-signal eigenvalue stability of the modular multilevel converter-based HVDC grid to identify the source of the oscillations. Second, to use this analysis as a basis to design a centralized optimal linear feedback controller to improve stability margins. The linear feedback controller is first applied as an additional control layer to the standard control of the offshore point-to-point HVDC grid, and then it is implemented to substitute the droop control function of the grid. Finally, the applicability and validity of the results are verified by time-domain simulations. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | European Association for the Development of Renewa | en_US |
dc.title | Control Optimization of the Offshore HVDC Grid based on Modular Multilevel Converter for Improving DC Voltage Stability | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 6 | en_US |
dc.source.volume | 18 | en_US |
dc.source.journal | The Renewable Energies and Power Quality Journal (RE&PQJ) | en_US |
dc.identifier.doi | 10.24084/repq18.273 | |
dc.identifier.cristin | 1837788 | |
dc.description.localcode | This article will not be available due to copyright restrictions (c) 2020 by European Association for the Development of Renewa | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |