Title:
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Carrier-based PWM strategies for the comprehensive capacitor voltage balance of multilevel multileg diode-clamped converters
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Author:
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Busquets Monge, Sergio; Ruderman, Alex
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. GREP - Grup de Recerca en Electrònica de Potència |
Abstract:
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This paper presents four carrier-based PWM
strategies for diode-clamped converters of any number of levels and any number of legs (phases). These carrier-based PWM
strategies guarantee the dc-link capacitor voltage balance in
every switching cycle without the need of additional hardware
and with low dc-link capacitance values for any modulation
index and load, provided that the sum of leg currents equals
zero. The performance of the presented carrier-based PWM
strategies, in terms of dc-link capacitor voltage balance and total
harmonic distortion in the output line-to-line voltages, is
evaluated through simulation, showing a tradeoff between the
simplicity of the carrier-based PWM implementation and its
total harmonic distortion performance. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica -Pulse-duration modulation -Modulació codificada (Electrònica) |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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IEEE Press. Institute of Electrical and Electronics Engineers
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