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Títol: A novel bidirectional multilevel boost-buck dc-dc converter
Autor: Busquets Monge, Sergio
Alepuz Menéndez, Salvador
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
Pulse-duration modulation
Electric current converters
Modulació (Electrònica)
Control electrònic
Control predictiu
Tipus de document: Conference lecture
Descripció: A novel noninverting boost-buck dc-dc converter topology is presented, applicable when both sides of the converter need to have the same grounding. It is based on the back-to-back connection of two n-level diode-clamped converter legs, and allows bidirectional power flow. A simplified topology is proposed for unidirectional power flow applications. Two new pulse width modulation strategies with different advantages are proposed to operate the converter guaranteeing dc-link capacitor voltage balance in every switching cycle for all possible operating conditions and using small capacitance values. The semiconductor device losses are analytically compared to the losses in a conventional two-level boost-buck converter. The analysis yields a higher efficiency for the multilevel converter, especially as the number of levels increases. Experimental results are presented to validate the good converter performance in a five-level converter prototype.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder
Altres identificadors i accés: Busquets-Monge, S.; Alepuz, S.; Bordonau, J. A novel bidirectional multilevel boost-buck dc-dc converter. A: Energy Conversion Congress and Exposition. "Energy Conversion Congress and Exposition, 2009". San Jose: 2009, p. 707-714.
978-1-4244-2893-9
http://hdl.handle.net/2117/6604
10.1109/ECCE.2009.5316357
Disponible al dipòsit:E-prints UPC
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