Accurate harmonic analysis of dual-frequency inverter considering dead-time effect

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F24%3A10256843" target="_blank" >RIV/61989100:27240/24:10256843 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s43236-024-00795-4" target="_blank" >https://link.springer.com/article/10.1007/s43236-024-00795-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s43236-024-00795-4" target="_blank" >10.1007/s43236-024-00795-4</a>

Result language

angličtina

Original language name

Accurate harmonic analysis of dual-frequency inverter considering dead-time effect

Original language description

Wireless power transfer (WPT) systems or simultaneous wireless information and power transfer (SWIPT) systems support multiple charging frequency standards and usually transmit two or more frequencies simultaneously. Multi-frequency sinusoidal pulse width modulation (MF-SPWM) technology can output multiple sine wave frequencies at the same time with only one inverter, which effectively reduces the system size and improves compatibility. However, MF-SPWM and dead-time make the MF-inverter highly nonlinearized, with significant effects on the desired frequencies and the total harmonic distortion (THD) of the multi-frequency output. In this paper, a double Fourier series-based method of harmonic analysis for the dual-frequency inverter (DF-inverter) is proposed, which can accurately calculate the magnitude of each of the harmonics in the output of the DF-inverter taking into account the influence of dead-time. The calculation methods of the minimum pulse width and voltage THD of the DF-inverter are provided. An analysis shows that when the dead-time is less than the minimum pulse width, its influence is negligible. Meanwhile, when the dead-time is slightly larger than the minimum pulse width, there is a trade-off between the desired frequency component and the THD. Experimental results are given and they are consistent with the analytical results of the proposed method, and the error is within 2%.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10200 - Computer and information sciences

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of Power Electronics

ISSN

1598-2092

e-ISSN

2093-4718

Volume of the periodical

24

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

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UT code for WoS article

001196366000002

EID of the result in the Scopus database

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