Bifurcation-Based Parameter Extraction Method for IPT Systems with Sensorless Metal Object Detection

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F23%3A00367606" target="_blank" >RIV/68407700:21230/23:00367606 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/WPTCE56855.2023.10216037" target="_blank" >http://dx.doi.org/10.1109/WPTCE56855.2023.10216037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/WPTCE56855.2023.10216037" target="_blank" >10.1109/WPTCE56855.2023.10216037</a>

Result language
angličtina
Original language name
Bifurcation-Based Parameter Extraction Method for IPT Systems with Sensorless Metal Object Detection
Original language description
This paper presents a novel bifurcation-based parameter extraction (BBPE) method for inductive power transfer (IPT) systems. The proposed method utilizes only transmitter-side measurements to accurately determine all coil parameters, including the complex coupling coefficient, making it useful for both optimizing power transfer and efficiency, as well as sensorless metal object (MO) detection. The method is based on two primary current frequency responses, one measurement with an open load and the other with a shorted load. The primary current amplitude spectrum for an open load contains one peak, while a shorted load puts the system in a deep bifurcation state, resulting in two peaks and one minimum. The resonant frequencies and primary current amplitudes at the peaks for the two loads are measured and used to solve for the coil parameters. With its ability to extract all coil parameters, this method is an improvement over previous techniques that could only extract a subset of parameters using transmitter-side information. Measurements of an IPT system with and without an MO are used to validate the effectiveness of the BBPE method.
Czech name
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Czech description
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Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2023 IEEE Wireless Power Technology Conference and Expo (WPTCE)
ISBN
979-8-3503-3737-2
ISSN
—
e-ISSN
—
Number of pages
6
Pages from-to
25-30
Publisher name
IEEE Industrial Electronic Society
Place of publication
???
Event location
San Diego
Event date
Jun 4, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001058651600076

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