Structural Resemblance Between Droop Controllers and Phase-Locked Loops

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dc.contributor.authorZhong, Qing-Changen
dc.contributor.authorBoroyevich, Dushanen
dc.date.accessioned2019-05-15T14:57:49Zen
dc.date.available2019-05-15T14:57:49Zen
dc.date.issued2016en
dc.description.abstractIt is well known that droop control is fundamental to the operation of power systems and now the parallel operation of inverters, while phase-locked loops (PLLs) are widely adopted in modern electrical engineering. In this paper, it is shown at first that droop control and PLLs structurally resemble each other. This bridges the gap between the two communities working on droop control and PLLs. As a result, droop controllers and PLLs can be improved and further developed via adopting the advancements in the other field. This finding is then applied to operate the conventional droop controller for inverters with inductive output impedance to achieve the function of PLLs, without having a dedicated synchronization unit. Extensive experimental results are provided to validate the theoretical analysis.en
dc.description.notesThis work was supported by EPSRC, U.K. under Grant EP/J001333/1 and Grant EP/J01558X/1.en
dc.description.sponsorshipEPSRC, U.K. [EP/J001333/1, EP/J01558X/1]; Engineering and Physical Sciences Research Council [EP/J001333/2, EP/J01558X/1, EP/H003738/1, EP/J001333/1]en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1109/ACCESS.2016.2606348en
dc.identifier.eissn2169-3536en
dc.identifier.urihttp://hdl.handle.net/10919/89530en
dc.identifier.volume4en
dc.language.isoenen
dc.publisherIEEEen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectDroop controlen
dc.subjectenhanced phase-locked loop (PLL)en
dc.subjectsinusoidal tracking algorithm (STA)en
dc.subjectmicrogriden
dc.subjectsmart grid integrationen
dc.subjectinvertersen
dc.subjectself-synchronizationen
dc.subjectparallel operationen
dc.subjectsynchronous machinesen
dc.subjectautonomous systemsen
dc.titleStructural Resemblance Between Droop Controllers and Phase-Locked Loopsen
dc.title.serialIEEE Accessen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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