Asymmetrical Six-Phase Space Vector Pwm Scheme

<p class="14AbstracttekstasAbstract"><span lang="EN-GB">Multiphase electric motors have smaller torque pulsations and are more reliable that their three-phase alternatives. However, standard electricity grids around the world are three-phase, so power inverter is need...

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Main Author: Tadas Lipinskis
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2014-05-01
Series:Mokslas: Lietuvos Ateitis
Subjects:
Online Access:http://www.mla.vgtu.lt/index.php/mla/article/view/633
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author Tadas Lipinskis
author_facet Tadas Lipinskis
author_sort Tadas Lipinskis
collection DOAJ
description <p class="14AbstracttekstasAbstract"><span lang="EN-GB">Multiphase electric motors have smaller torque pulsations and are more reliable that their three-phase alternatives. However, standard electricity grids around the world are three-phase, so power inverter is needed to drive multiphase motors. Inverter is used not only to power the motor, but also to control the am­plitude and frequency of the produced voltage, thus controlling motor speed and torque. Multiphase systems with odd number of phases have been widely investigated; therefore, this paper focuses on a six-phase inverter with a single neutral symmetrical load. A novel asymmetrical space vector modulation scheme is proposed and evaluated using simulations in Matlab/Simulink. Simulation results are compared to other modulation schemes. The proposed method is suitable for generating near-sinusoidal output voltages; however, it might not be suited for driving motors with sinusoidally distributed stator windings.</span></p>
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spelling doaj.art-ac3b43447562455c927d4a2c1eeeec2d2022-12-21T23:01:42ZengVilnius Gediminas Technical UniversityMokslas: Lietuvos Ateitis2029-23412029-22522014-05-016210.3846/mla.2014.023610Asymmetrical Six-Phase Space Vector Pwm SchemeTadas Lipinskis0Vilniaus Gedimino technikos universitetas<p class="14AbstracttekstasAbstract"><span lang="EN-GB">Multiphase electric motors have smaller torque pulsations and are more reliable that their three-phase alternatives. However, standard electricity grids around the world are three-phase, so power inverter is needed to drive multiphase motors. Inverter is used not only to power the motor, but also to control the am­plitude and frequency of the produced voltage, thus controlling motor speed and torque. Multiphase systems with odd number of phases have been widely investigated; therefore, this paper focuses on a six-phase inverter with a single neutral symmetrical load. A novel asymmetrical space vector modulation scheme is proposed and evaluated using simulations in Matlab/Simulink. Simulation results are compared to other modulation schemes. The proposed method is suitable for generating near-sinusoidal output voltages; however, it might not be suited for driving motors with sinusoidally distributed stator windings.</span></p>http://www.mla.vgtu.lt/index.php/mla/article/view/633large and medium space vectors, six phase inverter, six-phase motor, asymmetrical SVPWM.
spellingShingle Tadas Lipinskis
Asymmetrical Six-Phase Space Vector Pwm Scheme
Mokslas: Lietuvos Ateitis
large and medium space vectors, six phase inverter, six-phase motor, asymmetrical SVPWM.
title Asymmetrical Six-Phase Space Vector Pwm Scheme
title_full Asymmetrical Six-Phase Space Vector Pwm Scheme
title_fullStr Asymmetrical Six-Phase Space Vector Pwm Scheme
title_full_unstemmed Asymmetrical Six-Phase Space Vector Pwm Scheme
title_short Asymmetrical Six-Phase Space Vector Pwm Scheme
title_sort asymmetrical six phase space vector pwm scheme
topic large and medium space vectors, six phase inverter, six-phase motor, asymmetrical SVPWM.
url http://www.mla.vgtu.lt/index.php/mla/article/view/633
work_keys_str_mv AT tadaslipinskis asymmetricalsixphasespacevectorpwmscheme