<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The presence of low frequency components in the common mode voltage can cause harmful electromagnetic interference. A critical study on various causes of low frequency components in the common mode voltage of a space vector pulse width modulated Quasi–Z– source three–phase H–bridge voltage source inverter fed from a three–phase diode bridge rectifier is presented in this paper. The Quasi–Z–source network is utilized in boosting the rectified dc voltage which increases the overall voltage gain. The study considers the effect of boosting on the low frequency components. The input three-phase diode bridge rectifier has its influence in modulating the instantaneous common mode voltage and contributes low frequency components. The unbalanced three-phase supply can contribute additionally ac supply frequency component in the common mode voltage. The major contribution of this paper is the analytical, simulated and experiment-based study on various causes of the low frequency common mode voltages due to the combined action of the input non-ideal three phase grid, the front-end diode bridge rectifier as well as the load-end Z-source H-bridge three-phase inverter feeding a three-phase inductive load, while operated through a space vector pulse width modulation strategy.</p>
</abstract>

The presence of low frequency components in the common mode voltage can cause harmful electromagnetic interference. A critical study on various causes of low frequency components in the common mode voltage of a space vector pulse width modulated Quasi–Z– source three–phase H–bridge voltage source inverter fed from a three–phase diode bridge rectifier is presented in this paper. The Quasi–Z–source network is utilized in boosting the rectified dc voltage which increases the overall voltage gain. The study considers the effect of boosting on the low frequency components. The input three-phase diode bridge rectifier has its influence in modulating the instantaneous common mode voltage and contributes low frequency components. The unbalanced three-phase supply can contribute additionally ac supply frequency component in the common mode voltage. The major contribution of this paper is the analytical, simulated and experiment-based study on various causes of the low frequency common mode voltages due to the combined action of the input non-ideal three phase grid, the front-end diode bridge rectifier as well as the load-end Z-source H-bridge three-phase inverter feeding a three-phase inductive load, while operated through a space vector pulse width modulation strategy.

A Study on Various Causes of Low Frequency Components in Common Mode Voltage of a Space Vector Pulse Width Modulated Three– Phase Quasi–Z–Source H–Bridge Inverter Fed from a Three–Phase Diode Bridge Rectifier

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution 4.0 International License.

The presence of low frequency components in the common mode voltage can cause harmful electromagnetic interference. A critical study on various causes of low...

A Study on Various Causes of Low Frequency Components in Common Mode Voltage of a Space Vector Pulse Width Modulated Three– Phase Quasi–Z–Source H–Bridge Inverter Fed from a Three–Phase Diode Bridge Rectifier

Published Online: Mar 05, 2024

Page range: 142 - 160

Received: Nov 17, 2023

Accepted: Jan 30, 2024

DOI: https://doi.org/10.2478/pead-2024-0009

Keywords
common mode voltage, Quasi–Z–source three phase H–bridge voltage source inverter, shoot–through duty ratio, simple boost control, low frequency spectrum

© 2024 Debalina Nanda et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

A Study on Various Causes of Low Frequency Components in Common Mode Voltage of a Space Vector Pulse Width Modulated Three– Phase Quasi–Z–Source H–Bridge Inverter Fed from a Three–Phase Diode Bridge Rectifier

Published Online: Mar 05, 2024

Page range: 142 - 160

Received: Nov 17, 2023

Accepted: Jan 30, 2024

DOI: https://doi.org/10.2478/pead-2024-0009

Keywordscommon mode voltage, Quasi–Z–source three phase H–bridge voltage source inverter, shoot–through duty ratio, simple boost control, low frequency spectrum

© 2024 Debalina Nanda et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
common mode voltage, Quasi–Z–source three phase H–bridge voltage source inverter, shoot–through duty ratio, simple boost control, low frequency spectrum