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Optimal current reference calculation for MMCs considering converter limitations
dc.contributor.author | Westerman Spier, Daniel |
dc.contributor.author | Prieto-Araujo, E. |
dc.contributor.author | López Mestre, Joaquim |
dc.contributor.author | Gomis Bellmunt, Oriol |
dc.contributor.other | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Elèctrica |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica |
dc.date.accessioned | 2021-03-01T12:04:11Z |
dc.date.available | 2021-03-01T12:04:11Z |
dc.date.issued | 2020-08-31 |
dc.identifier.citation | Spier, W.D. [et al.]. Optimal current reference calculation for MMCs considering converter limitations. "IEEE transactions on power delivery", 31 Agost 2020, p. 1-12. |
dc.identifier.issn | 0885-8977 |
dc.identifier.uri | http://hdl.handle.net/2117/340632 |
dc.description.abstract | The paper addresses an optimization-based reference calculation method for Modular Multilevel Converters (MMC) operating in normal and constrained situations (when the converter needs to prioritize its quantities as it has reached voltage or current limitations, e.g. during system faults). The optimization problem prioritizes to satisfy the external AC active and reactive current set-points demanded by the grid operator through the corresponding grid code. If the operator demands are fulfilled, it uses the available MMC degrees of freedom to minimize the arm inductance losses. Otherwise, if the operator demanded AC set-points cannot be accomplished, the optimization attempts to minimize the error prioritizing between either AC active or reactive currents. The optimization problem constraints are imposed through a steady-state model considering simultaneously the external and internal AC and DC magnitudes of the converter. The steady-state model also includes the voltage variation in the equivalent arm capacitors (considering the ripple). Then, the imposed limitations are the maximum allowed grid and arm currents, the maximum allowed arm voltages and the sub-module capacitor maximum voltages. The paper presents a detailed formulation of the optimization problem and applies it to several case studies where it is shown that the presented approach can be potentially used to obtain the MMC references both in normal and fault conditions. |
dc.format.extent | 12 p. |
dc.language.iso | eng |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria elèctrica |
dc.subject.lcsh | Modulation (Electronics) |
dc.subject.lcsh | Simulation methods |
dc.subject.other | Modular multilevel converter (MMC) |
dc.subject.other | Grid support |
dc.subject.other | Reference optimization |
dc.subject.other | Steady-state analysis. |
dc.title | Optimal current reference calculation for MMCs considering converter limitations |
dc.type | Article |
dc.subject.lemac | Modulació (Electrònica) |
dc.subject.lemac | Simulació, Mètodes de |
dc.contributor.group | Universitat Politècnica de Catalunya. CITCEA - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments |
dc.identifier.doi | 10.1109/TPWRD.2020.3020420 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://ieeexplore-ieee-org.recursos.biblioteca.upc.edu/document/9181422 |
dc.rights.access | Open Access |
local.identifier.drac | 29429545 |
dc.description.version | Postprint (updated version) |
dc.relation.projectid | info:eu-repo/grantAgreement/EC/H2020/765585/EU/Innovative tools for offshore wind and DC grids/InnoDC |
local.citation.author | Spier, W. D.; Prieto-Araujo, E.; López-Mestre, J.; Gomis-Bellmunt, O. |
local.citation.publicationName | IEEE transactions on power delivery |
local.citation.startingPage | 1 |
local.citation.endingPage | 12 |
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