Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor	Universitat Politècnica de Catalunya. TIEG - Terrassa Industrial Electronics Group
dc.contributor.author	Picas Prat, Ricard
dc.contributor.author	Pou Félix, Josep
dc.contributor.author	Ceballos Recio, Salvador
dc.contributor.author	Zaragoza Bertomeu, Jordi
dc.contributor.author	Konstantinou, Georgios
dc.contributor.author	Agelidis, Vassilios
dc.date	2013
dc.identifier.citation	Picas, R. [et al.]. Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization. A: IEEE Annual International Energy Conversion Congress and Exhibition. "5th IEEE Annual International Energy Conversion Congress and Exhibition 2013 Proceeding". Melbourne: 2013, p. 318-324.
dc.identifier.citation	978-147990482-2
dc.identifier.citation	10.1109/ECCE-Asia.2013.6579115
dc.identifier.uri	http://hdl.handle.net/2117/20594
dc.language.iso	eng
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Energies::Energia elèctrica
dc.subject	Àrees temàtiques de la UPC::Enginyeria electrònica
dc.subject	Electric current converters.
dc.subject	Power electronics.
dc.subject	Capacitors
dc.subject	Capacitor voltage fluctuations
dc.subject	Capacitor voltage ripple
dc.subject	Circulating current
dc.subject	Harmonic currents
dc.subject	MATLAB/Simulink environment
dc.subject	Modular multi-level converters
dc.subject	Second and fourth harmonics
dc.subject	Second harmonic component
dc.subject	Convertidors altern-continu
dc.subject	Convertidors
dc.subject	Condensadors elèctrics
dc.subject	Condensadors electrònics
dc.title	Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	This paper proposes an algorithm to calculate the optimal amplitude and phase of the harmonic current components that can be injected in the circulating currents of a modular multilevel converter (MMC) to minimize the capacitor voltage fluctuations. An optimal second harmonic component and an optimal set of second and fourth harmonic components are proposed. Simulation results are obtained in MATLAB/Simulink environment to study the effectiveness of the calculated optimal currents. Selected experimental results have been obtained from an MMC laboratory prototype, testing the effects of the circulating currents. The reported results demonstrate the effectiveness of using a fourth harmonic component in the circulating current, which improves the effect of the second harmonic on reducing the capacitor voltage fluctuations.

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