<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The proof of a concept for a new method of modulation has been presented which reduce switch count in a three-level neutral point clamped (3L-NPC) inverter. The method is an implementation of space vector modulation (SVM) by means of a prediction algorithm and sequences of transistors, which are not common in use. Those sequences make active use of clamping diodes of the inverter. The prediction algorithm analyzes possible sequences of transistors’ states and choose those which offers smaller switch count. Measurements of steady states were taken on prototype 3L-NPC.</p></abstract>

The proof of a concept for a new method of modulation has been presented which reduce switch count in a three-level neutral point clamped (3L-NPC) inverter. The method is an implementation of space vector modulation (SVM) by means of a prediction algorithm and sequences of transistors, which are not common in use. Those sequences make active use of clamping diodes of the inverter. The prediction algorithm analyzes possible sequences of transistors’ states and choose those which offers smaller switch count. Measurements of steady states were taken on prototype 3L-NPC.

A Method of Reducing Switch Count in Three-Level NPC Inverter – Analysis in Steady States

Faculty of Electrical Engineering, Automatic Control and Informatics

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The proof of a concept for a new method of modulation has been presented which reduce switch count in a three-level neutral point clamped (3L-NPC) inverter....

A Method of Reducing Switch Count in Three-Level NPC Inverter – Analysis in Steady States

Published Online: Dec 29, 2017

Page range: 117 - 126

Received: Jun 28, 2017

Accepted: Sep 25, 2017

DOI: https://doi.org/10.5277/ped170202

Keywords
reduction of switch count, three-level NPC inverter, space vector modulation

© 2017 Ryszard Beniak et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A Method of Reducing Switch Count in Three-Level NPC Inverter – Analysis in Steady States

Published Online: Dec 29, 2017

Page range: 117 - 126

Received: Jun 28, 2017

Accepted: Sep 25, 2017

DOI: https://doi.org/10.5277/ped170202

Keywordsreduction of switch count, three-level NPC inverter, space vector modulation

© 2017 Ryszard Beniak et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
reduction of switch count, three-level NPC inverter, space vector modulation