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Títol: Pulsewidth modulations for the comprehensive capacitor voltage balance of n-level two-leg diode-clamped converters
Autor: Busquets Monge, Sergio
Alepuz Menéndez, Salvador
Rocabert Delgado, Joan
Bordonau Farrerons, José
Altres autors/autores: Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Electrònica de potència
Power electronics
Electric current converters
Electrònica de potència
Convertidors
Tipus de document: Article
Descripció: In the previous literature, the introduction of the virtual space vector concept for the three-level three-leg neutral-point-clamped converter has led to the definition of pulsewidth modulation (PWM) strategies guaranteeing the dc-link capacitor voltage balance under any type of load, with the only requirement being that the addition of the three phase currents equals zero. This paper presents the definition of the virtual space vectors for the general case of an n-level converter, suggests guidelines for designing virtual-space-vector PWM strategies, and provides the expressions of the phase duty-ratio waveforms corresponding to this family of PWMs. Modulations defined upon these vectors enable the use of diode-clamped topologies with passive front-ends. The performance of these converters operated with the proposed PWMs is compared to the performance of alternative designs through analysis, simulation and experiments.
Altres identificadors i accés: Busquets-Monge, S. [et al.]. Pulsewidth modulations for the comprehensive capacitor voltage balance of n-level two-leg diode-clamped converters. "IEEE transactions on power electronics", Agost 2009, vol. 24, núm. 8, p. 1951-1959.
0885-8993
http://hdl.handle.net/2117/6224
10.1109/TPEL.2009.2017918
Disponible al dipòsit:E-prints UPC
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