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Title:
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Method to reduce THD and improve efficiency in SiC power converter.
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Author:
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Fernández Palomeque, Efrén Esteban; Paredes Camacho, Alejandro; Sala Caselles, Vicenç; Romeral Martínez, José Luis
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group |
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Abstract:
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This paper presents a method to reduce total
harmonic distortion (THD) and improve efficiency of a topology
of power converter using SiC devices. The method consists of two
parts: the first part finds the optimum offset angle between two
carrier signals that are sent to the first stage of the V-I converter
and PWM modulation for the current source inverter (CSI), to
reduce the total harmonic distortion in the output currents. The
V-I converter transforms the voltage source of the battery into a
current source for the inverter. The V-I converter operates at 30
kHz and the CSI at 55 kHz switching. The second part consists of
using SiC devices to increase the operating range in frequency,
and reduce the power losses in the devices, which will improve
the efficiency of the analyzed topology. Besides, a comparative
study between the SiC topology and a topology with conventional
Si devices was proposed, the results of simulations analyzed the
power losses and THD and compared with the purpose of
validating the method proposal. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
-Electric current converters
-SiC
-CSI
-FOC Control
-Surface Mounted Permanent Magnet Synchronous
-Convertidors de corrent elèctric
-Carbur de silici |
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Rights:
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Document type:
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Article - Submitted version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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