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Título:
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Interleaved operation of three-level neutral point clamped converter legs and reduction of circulating currents under SHE-PWM
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Autor/a:
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Capellá Frau, Gabriel José; Pou Félix, Josep; Konstantinou, Georgios
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. TIEG-P - Terrassa Industrial Electronics Group -Power |
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Abstract:
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Interleaving of voltage-source converter
(VSC) legs enables higher output currents per phase,
effectively increasing the power rating without increasing
semiconductor ratings. However, the interleaved operation
results in circulating currents between each phase converter
legs as well as a zero-sequence circulating current
(ZSCC), which become quite prominent when the converters
operate with low switching frequencies. This paper
demonstrates the interleaved operation of three-level converters
under selective harmonic elimination pulsewidth
modulation (SHE-PWM). A controller for the circulating
current within the legs of each phase is also proposed. The
controller is used in combination with optimally selected
SHE-PWM patterns to generate the maximum number of
voltage levels and minimize the peak value of the circulating
current. Simulation and experimental results show the
interleaved operation and the effect of SHE-PWM pattern
selection in the overall system. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
-Electric inductors
-Modulation (Electronics)
-Semiconductor switches
-Electric current converters
-parallel legs
-Interleaving
-multilevel converters
-pulse width modulation
-Inductors elèctrics
-Modulació (Electrònica)
-Semiconductors de commutació
-Convertidors de corrent elèctric |
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Derechos:
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Tipo de documento:
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Artículo - Versión presentada
Artículo |
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Editor:
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Institute of Electrical and Electronics Engineers (IEEE)
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Compartir:
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