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Open AccessArticle

Modeling and Control of Double-Sided LCC Compensation Topology with Semi-Bridgeless Active Rectifier for Inductive Power Transfer System

1
The Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, Korea
2
New & Renewable Energy Laboratory, Korea Electric Power Research Institute (KEPRI), Korea Electric Power Company (KEPCO), 105 Munji-Ro, Yuseong-gu, Daejeon 34056, Korea
*
Author to whom correspondence should be addressed.
Energies 2019, 12(20), 3921; https://doi.org/10.3390/en12203921
Received: 17 September 2019 / Revised: 12 October 2019 / Accepted: 14 October 2019 / Published: 16 October 2019
(This article belongs to the Special Issue Advanced in Resonant Converter and Dual Active Bridge Converter)
This paper proposes the modeling and design of a controller for an inductive power transfer (IPT) system with a semi-bridgeless active rectifier (S-BAR). This system consists of a double-sided Inductor-Capacitor-Capacitor (LCC) compensation network and an S-BAR, and maintains a constant output voltage under load variation through the operation of the rectifier switches. Accurate modeling is essential to design a controller with good performance. However, most of the researches on S-BAR have focused on the control scheme for the rectifier switches and steady-state analysis. Therefore, modeling based on the extended describing function is proposed for an accurate dynamic analysis of an IPT system with an S-BAR. Detailed mathematical analyses of the large-signal model, steady-state operating solution, and small-signal model are provided. Nonlinear large-signal equivalent circuit and linearized small-signal equivalent circuit are presented for intuitive understanding. In addition, worst case condition is selected under various load conditions and a controller design process is provided. To demonstrate the effectiveness of the proposed modeling, experimental results using a 100 W prototype are presented. View Full-Text
Keywords: inductive power transfer; semi-bridgeless active rectifier; extended describing function inductive power transfer; semi-bridgeless active rectifier; extended describing function
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MDPI and ACS Style

Cha, H.-R.; Kim, R.-Y.; Park, K.-H.; Choi, Y.-J. Modeling and Control of Double-Sided LCC Compensation Topology with Semi-Bridgeless Active Rectifier for Inductive Power Transfer System. Energies 2019, 12, 3921.

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