Hybrid Overmodulation Strategy of Dual Two-Level Inverter Topology Enabling 12-Step Operation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00371814" target="_blank" >RIV/68407700:21230/24:00371814 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/TPEL.2024.3358407" target="_blank" >https://doi.org/10.1109/TPEL.2024.3358407</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TPEL.2024.3358407" target="_blank" >10.1109/TPEL.2024.3358407</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hybrid Overmodulation Strategy of Dual Two-Level Inverter Topology Enabling 12-Step Operation

Popis výsledku v původním jazyce

This paper introduces a novel overmodulation strategy tailored for dual-inverter topologies with galvanically isolated DC-links and evenly distributed DC-link voltage. The core contribution of the paper is the utilization of the multilevel capabilities of the dual-inverter topology. At the maximum modulation index, the presented overmodulation method achieves what is referred to as a 12-step operation. The 12-step operation improves the voltage waveform and offers superior harmonic performance compared to the conventional 6-step operation. The utilized approach leverages a hybrid Space Vector Pulse Width Modulation (SVPWM) method, a well-established technique in two-level inverters, to achieve this extended operation range. Furthermore, the paper presents a nonlinear gain compensation characteristic vital for real-time motor control applications and provides a comparative analysis of the modulation's harmonic performance. The proposed approach is validated through simulations and experiments. The experiments were conducted using a custom inverter based on Gallium-Nitride (GaN) transistors where simple volt/hertz control of an induction motor was programmed. The results of these experiments affirm the strategy's effectiveness, showcasing superior current waveform quality and a smooth transition from linear mode to 12-step operation while keeping a simple implementation of the algorithm.

Název v anglickém jazyce

Hybrid Overmodulation Strategy of Dual Two-Level Inverter Topology Enabling 12-Step Operation

Popis výsledku anglicky

This paper introduces a novel overmodulation strategy tailored for dual-inverter topologies with galvanically isolated DC-links and evenly distributed DC-link voltage. The core contribution of the paper is the utilization of the multilevel capabilities of the dual-inverter topology. At the maximum modulation index, the presented overmodulation method achieves what is referred to as a 12-step operation. The 12-step operation improves the voltage waveform and offers superior harmonic performance compared to the conventional 6-step operation. The utilized approach leverages a hybrid Space Vector Pulse Width Modulation (SVPWM) method, a well-established technique in two-level inverters, to achieve this extended operation range. Furthermore, the paper presents a nonlinear gain compensation characteristic vital for real-time motor control applications and provides a comparative analysis of the modulation's harmonic performance. The proposed approach is validated through simulations and experiments. The experiments were conducted using a custom inverter based on Gallium-Nitride (GaN) transistors where simple volt/hertz control of an induction motor was programmed. The results of these experiments affirm the strategy's effectiveness, showcasing superior current waveform quality and a smooth transition from linear mode to 12-step operation while keeping a simple implementation of the algorithm.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Power Electronics

ISSN

0885-8993

e-ISSN

1941-0107

Svazek periodika

39

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

6077-6088

Kód UT WoS článku

001244501300058

EID výsledku v databázi Scopus

2-s2.0-85184022202