New control strategy to allow the photovoltaic systems operation under grid faults

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/10695

dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.contributor	Universitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable
dc.contributor.author	Azevedo, Gustavo M.S.
dc.contributor.author	Rodríguez Cortés, Pedro
dc.contributor.author	Cavalcanti, Marcelo C.
dc.contributor.author	Vázquez Guzmán, Gerardo
dc.contributor.author	Neves, F.
dc.date	2009
dc.identifier.citation	Azevedo, G. [et al.]. New control strategy to allow the photovoltaic systems operation under grid faults. A: Brazilian Power Electronics Conference. "2009 Brazilian Power Electronics Conference". Bonito: 2009, p. 196-201.
dc.identifier.citation	978-1-4244-3369-8
dc.identifier.citation	10.1109/COBEP.2009.5347705
dc.identifier.uri	http://hdl.handle.net/2117/10695
dc.language.iso	eng
dc.relation	http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5347705
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Energies::Energia elèctrica::Electricitat
dc.subject	Àrees temàtiques de la UPC::Enginyeria elèctrica::Distribució d'energia elèctrica::Instal·lacions elèctriques
dc.subject	Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
dc.subject	Electric power systems
dc.subject	Distributed generation of electric power
dc.subject	Photovoltaic power systems
dc.subject	Energia elèctrica -- Distribució
dc.subject	Electricitat -- Aplicacions industrials
dc.subject	Xarxes elèctriques -- Estabilitat
dc.title	New control strategy to allow the photovoltaic systems operation under grid faults
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	This paper presents a new control strategy that allows the photovoltaic system operation under grid faults without overcurrent and assuring grid sinusoidal currents. The current limiter is made indirectly by using an active power limiter that is calculated dynamically based on the grid positive-sequence voltage. The paper also shows that the classic control strategies used in the PV systems cause harmonic current injections on the electrical grid and dangerous overcurrents when voltage sags occur. The strategy presented here overcomes these drawbacks and allows the inverter operation under any unbalanced condition. The control is made on stationary reference frame using Proportional-Resonant current control. This new control strategy is compared to the classic strategy through simulations in PSCAD/EMTDC and the experimental results prove its effectiveness.

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