Research on SVPWM and Midpoint Potential Balancing Algorithm of Improved NPC Three-Level Inverter

Deng Pan, Jun Gao, Yicai Liu

2023

Abstract

The traditional NPC three-level inverter SVPWM control adopts a 36-sector seven-segment modulation method, which involves a large number of trigonometric functions and coordinate transformations. This paper proposes a improved control strategy using 24 sectors, and introduces the SVPWM modulation method and implementation steps in detail. Compared with the 36-sector control method, the workload of calculation and table checking is significantly reduced. At the same time, this paper proposes a simple "estimation-simulation-correction" midpoint potential balance control algorithm, through a large number of simulation verification, extract the best adjustment factor k to adjust the action time of the starting negative small vector and the redundant small vector, and realize the balance control of the midpoint potential. Finally, the correctness of the proposed control method is verified by Simulink simulation.

Paper Citation

in Harvard Style

Pan D., Gao J. and Liu Y. (2023). Research on SVPWM and Midpoint Potential Balancing Algorithm of Improved NPC Three-Level Inverter. In Proceedings of the 1st International Conference on Data Processing, Control and Simulation - Volume 1: ICDPCS; ISBN 978-989-758-675-0, SciTePress, pages 5-16. DOI: 10.5220/0012142200003562

in Bibtex Style

@conference{icdpcs23,
author={Deng Pan and Jun Gao and Yicai Liu},
title={Research on SVPWM and Midpoint Potential Balancing Algorithm of Improved NPC Three-Level Inverter},
booktitle={Proceedings of the 1st International Conference on Data Processing, Control and Simulation - Volume 1: ICDPCS},
year={2023},
pages={5-16},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012142200003562},
isbn={978-989-758-675-0},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International Conference on Data Processing, Control and Simulation - Volume 1: ICDPCS
TI - Research on SVPWM and Midpoint Potential Balancing Algorithm of Improved NPC Three-Level Inverter
SN - 978-989-758-675-0
AU - Pan D.
AU - Gao J.
AU - Liu Y.
PY - 2023
SP - 5
EP - 16
DO - 10.5220/0012142200003562
PB - SciTePress