Hybrid Overmodulation Strategy for Dual Two-Level Inverter with Arbitrary DC-Bus Voltage Distribution
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00375441" target="_blank" >RIV/68407700:21230/24:00375441 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/TPEL.2024.3410682" target="_blank" >https://doi.org/10.1109/TPEL.2024.3410682</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TPEL.2024.3410682" target="_blank" >10.1109/TPEL.2024.3410682</a>
Alternative languages
Result language
angličtina
Original language name
Hybrid Overmodulation Strategy for Dual Two-Level Inverter with Arbitrary DC-Bus Voltage Distribution
Original language description
This paper introduces an innovative overmodulation strategy for a dual two-level inverter topology featuring galvanically isolated DC-links and accommodating arbitrary distribution of DC-bus voltages. In such a configuration, the uneven distribution of DC voltages gives rise to 12 additional fundamental voltage vectors compared to the conventional two-level inverter, effectively enabling the topology to function as a five-level inverter. The primary innovation of our proposed method lies in its ability to transition from linear modulation to what we term an 18-step operation – an improved multilevel square-wave operation of the inverter. This extended operational range is achieved through a hybrid space vector PWM approach, a well-established technique in the context of two-level inverters. Moreover, this paper presents a crucial nonlinear gain compensation characteristic essential for real-time control applications. To validate the effectiveness of our approach, we conducted experiments using a custom 15-kW GaN dual inverter. These experiments included the implementation of a straightforward V/Hz control of a 12-kW induction motor supplied by the dual inverter. The results of our experiments confirm the strategy's effectiveness, demonstrating superior current waveform quality and a seamless transition from linear modulation mode to the 18-step operation.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Power Electronics
ISSN
0885-8993
e-ISSN
1941-0107
Volume of the periodical
39
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
11479-11492
UT code for WoS article
001273801000099
EID of the result in the Scopus database
2-s2.0-85195388713