Abstract
Inductively coupled power transfer systems (ICPT) are becoming ubiquitous in industry. Many such systems are excited with single or multi-phase input current. This leads to increased complexity in comparing such systems when solely using the magnetic frequency analysis. This paper utilizes modern finite element method analysis software to propose a novel software methodology for the numerical comparison of single and two phase ICPT systems as demonstrated on a three dimensional (3D) battery charging system. The sinusoidal magnetic frequency response of a single phase system is compared to the magnetic transient response of a multi-phase current system by use of a novel software methodology proposed in this paper. This consists of a transient response analysis to determine compute the resulting magnetic response over the duration of an input current period on the two phase system. The resulting non-sinusoidal response is then integrated over a whole period to extract the root-mean-square value for comparison with that of a single phase system across a 3D cubic power zone.
Highlights
The technique termed inductively coupled power transfer (ICPT) is a wireless-power-transfer technique that transfers power across an air-gap by means of magnetic induction [1]
The sinusoidal magnetic frequency response of a single phase system is compared to the magnetic transient response of a multi-phase current system by use of a novel software methodology proposed in this paper
This paper proposes a methodology for the numerical comparison of a single and two phase 3D battery charging Inductively coupled power transfer systems (ICPT) system in terms of the resulting magnetic field
Summary
The technique termed inductively coupled power transfer (ICPT) is a wireless-power-transfer technique that transfers power across an air-gap by means of magnetic induction [1] This technique removes the inconveniences caused from physical wires by providing power in hard to reach places where conventional direct electrical connections are inconvenient, hazardous, or impossible, lowers maintenance requirements as there is less wear and tear from wet, dirty, moisturized and hazardous environments, and provides enhanced safety as it is free of sparking and can be used in potentially explosive atmospheres and supports freedom of mechanical movement of any load(s) as opposed to a localized load(s). This paper proposes a methodology for the numerical comparison of a single and two phase 3D battery charging ICPT system in terms of the resulting magnetic field
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