Redirigiendo al acceso original de articulo en 24 segundos...
Inicio  /  Energies  /  Vol: 12 Núm: 7 Par: April-1 (2019)  /  Artículo
ARTÍCULO
TITULO

A Generalised Multifrequency PWM Strategy for Dual Three-Phase Voltage Source Converters

Resumen

Pulse width modulation (PWM) strategies for the control of asymmetrical six-phase drives have been widely studied since the beginning of this century. Nevertheless, space vector modulation (SVM) techniques with multifrequency voltage injection for the control of all the degrees of freedom of the multiphase model is still a subject under research. This paper deals with this topic and introduces a generalised PWM method for a two-level voltage source converters. The architecture was derived by extending a three-phase modulator proposed as an alternative to the widely studied SVM. The proposal computes the duty times straightforwardly with a fast algorithm based on an analytical solution of the voltage-time modulation law. Theoretical derivations supported by experimental results demonstrate the proper synthesis of the multifrequency target voltage in the linear modulation region as well as good frequency behaviour of the presented modulation strategy.

 Artículos similares

       
 
José Gabriel Oliveira Pinto, Rui Macedo, Vitor Monteiro, Luis Barros, Tiago Sousa and João L. Afonso    
This paper presents a single-phase Shunt Active Power Filter (SAPF) with a multilevel converter based on an asymmetric full-bridge topology capable of producing five distinct voltage levels. The calculation of the SAPF compensation current is based on th... ver más
Revista: Energies

 
Mohammed Al-Hitmi, Salman Ahmad, Atif Iqbal, Sanjeevikumar Padmanaban and Imtiaz Ashraf    
Considering the aim of having low switching losses, especially in medium-voltage and high-power converters, the pre-programmed pulse width modulation technique is very useful because the generated harmonic content can be known in advance and optimized. A... ver más
Revista: Energies

 
Emre Ozsoy, Sanjeevikumar Padmanaban, Lucian Mihet-Popa, Viliam Fedák, Fiaz Ahmad, Rasool Akhtar and Asif Sabanovic    
This paper proposes a new approach on the novel current control strategy for grid-tied voltage-source inverters (VSIs) with circumstances of asymmetrical voltage conditions. A standard grid-connected inverter (GCI) allows the degree of freedom to integra... ver más
Revista: Energies

 
Xiongmin Tang, Junhui Zhang, Zheng Liu and Miao Zhang    
This paper presents a novel switching frequency optimized space vector pulse width modulation (SVPWM) scheme for cascaded multilevel inverters. The proposed SVPWM is developed in a a'ß' coordinate system, in which the voltage vectors have only int... ver más
Revista: Energies

 
Fayun Zhou, An Luo, Yan Li, Qianming Xu, Zhixing He and Josep M. Guerrero    
Modular multilevel converters (MMCs) have become one of the most attractive topologies for high-voltage and high-power applications. A double-carrier phase disposition pulse width modulation (DCPDPWM) method for MMCs is proposed in this paper. Only doubl... ver más
Revista: Energies