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Title:
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Voltage balancing method for a seven-level stacked multicell converter using minimum-switching transitions
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Author:
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Ghias, Amer M.Y.M.; Pou Félix, Josep; Agelidis, Vassilios; Ciobotaru, Mihai
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. TIEG - Terrassa Industrial Electronics Group |
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Abstract:
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This paper presents a voltage balancing method for stacked multicell converters based on phase disposition pulse-width modulation. This method is based on minimizing a cost function to determine the optimum redundant state for capacitor voltage balance for each particular voltage level. The robustness of the proposed voltage balancing method is verified against static and dynamic unbalanced load conditions. Furthermore, a significant reduction in the switching frequencies of the power devices is achieved by using sawtooth carriers instead of standard triangular carriers without affecting the voltage balancing capability. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica
-Electric current converters
-Capacitors
-Multilevel converter
-Stacked multicell converter
-Capacitor voltage balancing
-Pulse-width modulation.
-Ràdio--Freqüència modulada
-Convertidors de corrent elèctric
-Condensadors elèctrics |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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