An adaptive prefiltering method to improve the speed/accuracy tradeoff of voltage sequence detection methods under adverse grid conditions

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor	Universitat Politècnica de Catalunya. SEPIC - Sistemes Electrònics de Potència i de Control
dc.contributor.author	Matas Alcalá, José
dc.contributor.author	Castilla Fernández, Miguel
dc.contributor.author	Miret Tomàs, Jaume
dc.contributor.author	García de Vicuña Muñoz de la Nava, José Luis
dc.contributor.author	Guzmán Solà, Ramon
dc.date	2013-07-23
dc.identifier.citation	Matas, J. [et al.]. An adaptive prefiltering method to improve the speed/accuracy tradeoff of voltage sequence detection methods under adverse grid conditions. "IEEE transactions on industrial electronics", 23 Juliol 2013, vol. 61, núm. 5, p. 2139-2151.
dc.identifier.citation	0278-0046
dc.identifier.citation	10.1109/TIE.2013.2274414
dc.identifier.uri	http://hdl.handle.net/2117/20528
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6566021&searchWithin%3Dp_Authors%3A.QT.Guzman%2C+R..QT.%26refinements%3D4279141326
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
dc.subject	Voltage regulators
dc.subject	Power quality
dc.subject	Distributed generation of electric power--Research
dc.subject	Integrators
dc.subject	Distributed generation
dc.subject	generalized integrators
dc.subject	grid offset voltage rejection
dc.subject	grid voltage sequence detection
dc.subject	power quality
dc.subject	subharmonic rejection
dc.subject	voltage sags
dc.subject	Energia elèctrica -- Distribució
dc.subject	Sistemes de distribució d'energia elèctrica -- Control de qualitat
dc.title	An adaptive prefiltering method to improve the speed/accuracy tradeoff of voltage sequence detection methods under adverse grid conditions
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	This paper deals with the improvement of the transient response and harmonic, subharmonic, and dc-offset voltage rejection capability of a grid voltage sequence detection scheme based on a second-order generalized integrator (SOGI). To perform that, the SOGI structure is first analyzed in deep, emphasizing both its tradeoff limits between settling time and harmonic attenuation and the sensitivity to grid subharmonics and dc-offset voltage. Then, a study of the effect of grid voltage harmonics and subharmonics in SOGI and in the SOGI-FLL and MSOGI-FLL structures is introduced. Hence, to overcome these problems, a new structure based on the use of the SOGI filter as prefilter for the previous structures is proposed to achieve a faster time response and higher harmonic rejection. This structure is used in a sequence detection scheme for the detection of the grid voltage components in the αβ-frame and it is applied in a three-phase PV system. Experimental and comparative results are shown to validate this proposal.
dc.description.abstract	Peer Reviewed

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