Time-Domain Analysis of Voltage-Driven Series–Series Compensated Inductive Power Transfer Topology

This paper presents, initially, a systematic derivation of extended first harmonic approximation (FHA) analysis and, later, a comprehensive time-domain (T-D) analysis to study series-series compensated inductive power transfer (IPT) systems with a diode bridge rectifier. Further, the paper shows tha...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2017-07, Vol.32 (7), p.4981-5003
Main Authors: Safaee, Alireza, Woronowicz, Konrad
Format: Article
Language:English
Subjects:
Boundaries
Bridge circuits
Capacitors
Continuous current mode (CCM)
DC–DC Converter
discontinuous current mode (DCM)
first harmonic approximation (FHA)
full bridge
Harmonic analysis
inductive power transfer (IPT)
Power harmonic filters
Power transfer
Rectifiers
series–series compensationtime-domain analysis (T-D)
Time domain analysis
Waveforms
Windings
zero-voltage switching (ZVS)
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Summary:This paper presents, initially, a systematic derivation of extended first harmonic approximation (FHA) analysis and, later, a comprehensive time-domain (T-D) analysis to study series-series compensated inductive power transfer (IPT) systems with a diode bridge rectifier. Further, the paper shows that both FHA and T-D methods predict four mutually exclusive and collectively exhaustive modes of operation. Explicit criteria for each operation mode and formulae for mode boundaries are derived and it is concluded that FHA can explain three of four modes. The proposed T-D analysis is capable of describing the quantitative behavior of the system in all four operation modes with closed-form equations for all the mode boundaries. This analysis provides an objective basis to assess the accuracy of FHA predictions under the entire operating conditions. Quantitative comparison of key variables revealed that the FHA results can be unacceptably inaccurate for certain operating points. It is shown that the T-D approach provides a comprehensive design base for series-series compensated IPT without a need to know the load value. The T-D predictions are validated by experiment. A mathematical design calculator tool is also provided to the reader to visualize the mode boundaries, all the waveforms and the numerical results from both methods.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2016.2633940