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dc.contributor.authorMadorell Batlle, Queralt
dc.contributor.authorBullich Massagué, Eduard
dc.contributor.authorCheah Mañé, Marc
dc.contributor.authorGomis Bellmunt, Oriol
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.identifier.citationMadorell, Q. [et al.]. Over-frequency support in large-scale photovoltaic power plants using non-conventional control architectures. "International journal of electrical power and energy systems", Maig 2021, vol. 127, p. 106679:1-106679:8.
dc.description.abstractLarge scale photovoltaic power plants must provide a frequency regulation service, which is defined in the grid codes. This service has commonly required a response time between 15 and 30 s. But some countries are now introducing more strict regulations and requiring response times below 2 s. The typical centralized control architecture of photovoltaic power plants for frequency regulation can present undesired oscillatory responses (or even become unstable) when tuning the controller to achieve these small time response requirements. The present article proposes an alternative solution based on a hierarchical control architecture. In the proposed solution, inverter controllers apply a local frequency regulation action and the central controller corrects active power errors at the point of connection, which can be caused by power losses or lack of irradiance in some inverters. Simulation models are used to study and test the response of this new control approach. The proposed hierarchical control architecture is compared with a fully centralized and a fully decentralized archirectures. Results show that the hierarchical control architecture is not only capable to obtain a fast and accurate response, but also is robust against communication failures. The proposed hierarchical control architecture advantages could be extrapolated to other services. So, further research is proposed to confirm this hypothesis.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria elèctrica
dc.subject.lcshPhotovoltaic power generation
dc.subject.otherPV power plant
dc.subject.otherGrid code
dc.subject.otherControl architecture
dc.subject.otherFrequency regulation
dc.titleOver-frequency support in large-scale photovoltaic power plants using non-conventional control architectures
dc.subject.lemacEnergia solar fotovoltaica
dc.contributor.groupUniversitat Politècnica de Catalunya. CITCEA - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (author's final draft)
local.citation.authorMadorell, Q.; Bullich, E.; Cheah, M.; Gomis-Bellmunt, O.
local.citation.publicationNameInternational journal of electrical power and energy systems

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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain