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Enhancing Misalignment Tolerance in Inductive Power Transfer System to Maintain Stable Power Transfer and Improve the Efficiency for Battery Charging
Mostafa Jalalian-Ebrahimi , M. A. Shamsi-Nejad
Abstract:   (1314 Views)
This paper proposes an inductive power transfer (IPT) system to maintain stable power transfer and improve efficiency for battery charging performance across a wide range of coupling coefficient variations. The proposed IPT system uses series-series (S-S) and series-inductor-capacitor-inductor (S-LCL) compensation. In both compensation configurations, the rectifier operates in half-bridge (HB) and full-bridge (FB) modes. By using the correct switching pattern between compensation networks and the rectifier, four transfer power-coupling coefficient (P-k) curves are created. A 400 W prototype simulated in MATLAB demonstrates that, with the proposed method, output power fluctuation is limited to only 3% for coupling coefficients varying from 0.1 to 0.4, with system efficiency ranging from 80% to 95.9%. Compared to other methods, the proposed structure provides stable power transfer over an ultra-wide coupling variation and does not require special coil design, clamp circuit design, or complex control.
Keywords: Inductive Power Transfer (IPT), transfer power-coupling coefficient (P-k), Misalignment Tolerance, Power Fluctuation, Coupling Variation.
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Type of Study: Closed - 2023 Special Issue on Application of Electric Vehicles in Smart Energy Systems | Subject: Power Electronics Applications
Received: 2024/06/15 | Revised: 2024/12/19 | Accepted: 2024/12/14
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Creative Commons License
© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.