This paper discusses the design and optimization of a series-series compensated Inductive Power Transfer System (IPTS) followed by a post-regulator consisting in a DC-DC Buck converter. A static model of the system is developed through a first harmonic approximation method, and a procedure for compensation capacitor selection is proposed. A sensitivity analysis of the IPTS performances is carried out with respect to the variations of the primary inverter switching frequency and phase-shift angle, to achieve the efficiency maximization while ensuring the system controllability. Experimental prototype is developed able to deliver up to 29 W output power at a 12 V output voltage, yielding a 91.7% maximum efficiency. The IPTS behavior under both stable and unstable conditions is finally tested, thus confirming the static model predictions.

Design and Optimization of a Post-Regulated Inductive Power Transfer System with a Series-Series Compensation

Paolo Visconti
Ultimo
Writing – Review & Editing
2022-01-01

Abstract

This paper discusses the design and optimization of a series-series compensated Inductive Power Transfer System (IPTS) followed by a post-regulator consisting in a DC-DC Buck converter. A static model of the system is developed through a first harmonic approximation method, and a procedure for compensation capacitor selection is proposed. A sensitivity analysis of the IPTS performances is carried out with respect to the variations of the primary inverter switching frequency and phase-shift angle, to achieve the efficiency maximization while ensuring the system controllability. Experimental prototype is developed able to deliver up to 29 W output power at a 12 V output voltage, yielding a 91.7% maximum efficiency. The IPTS behavior under both stable and unstable conditions is finally tested, thus confirming the static model predictions.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11587/464678
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