Design Procedure Based on Maximum Efficiency for Wireless Power Transfer Battery Chargers with Lightweight Vehicle Assembly

Mattia Simonazzi, Alessandro Campanini, Leonardo Sandrolini and Claudio Rossi
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Mattia Simonazzi: Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy
Alessandro Campanini: Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy
Leonardo Sandrolini: Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy
Claudio Rossi: Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy

Energies, 2021, vol. 15, issue 1, 1-12

Abstract: This paper analyzes two different design procedures for a series-parallel compensated WPT battery charger, based on different definitions of the operating resonant frequency in the condition of maximum link efficiency. The behaviour of the voltage gain magnitude and the input impedance angle of the resulting WPT links is studied for different loads and coupling coefficients. The design algorithms are supported by analytical formulas derived from an exact circuit analysis of the WPT link, avoiding approximations as far as possible. To support the theoretical approach a case study is proposed, in which both design procedures are implemented considering specifications in line with the actual automotive standards. To conclude, a characterization of the efficiency in both cases is derived.

Keywords: wireless power transfer; inductive power transfer; battery charger; design procedure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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