A zero-sequence component injected PWM method with reduced switching losses and suppressed common-mode voltage for a three-phase four-leg voltage source inverter

2012 ◽  
Author(s):  
Min Zhang ◽  
David Atkinson ◽  
Matthew Armstrong
Keyword(s):  
Voltage Source ◽  
Voltage Source Inverter ◽  
Common Mode ◽  
Switching Losses ◽  
Common Mode Voltage ◽  
Three Phase ◽  
Zero Sequence

SVPWM Techinque with Reduced Common Mode Voltage for Three-Phase Voltage Source Inverter

2020 ◽  
Author(s):  
Alexandre G. F. da Silva ◽  
Isaac S. de Freitas ◽  
Gilielson F. da Paz ◽  
Lucas J. Oliveira ◽  
Vincius C. Ferreira ◽  
...  
Keyword(s):  
Voltage Source ◽  
Phase Voltage ◽  
Voltage Source Inverter ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Three Phase

scholarly journals Common-Mode Reduction SVPWM for Three-Phase Motor Fed by Two-Level Voltage Source Inverter

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3884
Author(s):  
Jian Zheng ◽  
Mingcheng Lyu ◽  
Shengqing Li ◽  
Qiwu Luo ◽  
Keyuan Huang
Keyword(s):  
High Frequency ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Voltage Source ◽  
Switching Frequency ◽  
Voltage Source Inverter ◽  
Large Magnitude ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Three Phase

Aiming at the problem of large magnitude and high frequency of common-mode voltage (CMV) when space vector pulse width modulation (SVPWM) is used in a three-phase motor fed by a two-level voltage source inverter, a common-mode reduction SVPWM (CMRSVPWM) is studied. In this method, six new sectors are obtained by rotating six sectors of conventional SVPWM by 30°. In odd-numbered sectors, only three non-zero vectors with odd subscripts are used for synthesis, while in even-numbered sectors, only three non-zero vectors with even subscripts are used for synthesis. The actuation durations of three non-zero vectors in each switching period in each sector are given. Simulation and experimental results show that, compared with the conventional SVPWM, the CMV magnitude of CMRSVPWM is reduced by 66.67% and the CMV frequency of CMRSVPWM is reduced from the original switching frequency to the triple fundamental frequency. At the same time, the current, torque and speed of the motor are still good.

A three-dimensional active zero state PWM for common-mode voltage reduction of a three-phase four-leg voltage-source inverter

2018 ◽  
Vol 15 (5) ◽  
pp. 592-603 ◽  
Author(s):  
Fardin Hasanzad ◽  
Hasan Rastegar ◽  
Mohammad Pichan
Keyword(s):  
Output Voltage ◽  
Three Dimensional ◽  
Superior Performance ◽  
Voltage Source ◽  
Voltage Source Inverter ◽  
Space Vector ◽  
Common Mode ◽  
Content Type ◽  
Common Mode Voltage ◽  
Three Phase

Purpose This paper aims to investigate the common-mode voltage (CMV) issue of a three-phase four-leg voltage-source inverter. A new space vector modulation method, named as three-dimensional active zero state Pulse-width modulation (PWM) (3-D AZSPWM), is proposed to reduce the CMV level. Design/methodology/approach PWM is a general method to generate the switching signals of the power converters in order to obtain high-quality output voltages. However, the CMV produced by PWM methods has become a serious problem. 3-D AZSPWM is proposed to solve this issue. In 3-D AZSPWM, instead of using zero voltage vectors with high CMV level, appropriate complementary non-zero vectors are introduced to synthesize reference vector. The proposed method is classified into four types of AZSPWM1(a), AZSPWM1(b), AZSPWM2(a) and AZSPWM2(b) based on different complementary vectors chosen for each type. An extend software simulation using MATLAB/Simulink is performed to verify the superior performance of the proposed methods. Findings Compared to other reduced CMV methods, the proposed method not only reduces the CMV but also retains the positive characteristics of the three-dimensional classical space vector PWM (3-D CSVPWM). Originality/value The proposed method does not suffer from linear modulation region limitation and also does not impose additional switching loss. Furthermore, calculated output voltage harmonic distortion factor illuminates acceptable quality of output voltage produced by the proposed method.

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