Abstract
The objective of this paper is to investigate the impact of the spiral coil shape of inductive coupled power transfer on its performance. The coil shapes evaluated are: circular, square and pentagon spiral shapes. The coils are modelled in Ansoft Maxwell software. Simulations are carried out to determine the mutual inductance, coupling coefficient and magnetic flux density. The performance in term of magnetic flux density, mutual inductance and coupling coefficient of the three coils shapes are compared. Of the three shapes, the pentagon is shown to have the best performance in term of its mutual inductance, coupling coefficient and magnetic flux density.
Highlights
Wireless Power Transfer (WPT) is a technology widely researched nowadays
The objective of this paper is to investigate the impact of the spiral coil shape of inductive coupled power transfer on its performance
Inductive Coupled Power Transfer (ICPT) operates based on magnetic field and Capacitive Coupled Power Transfer (CCPT) is based on electric field
Summary
Wireless Power Transfer (WPT) is a technology widely researched nowadays. This is due to the fact that the conventional wired system is messy, inconvenience and may cause hazards such as electric shock or electrocution [1]. ICPT system uses two closely spaced coils, one primary or transmitter and the other one secondary or receiver. The current flowing through the primary coil generates a magnetic flux that is received by the secondary coil. Capacitive coupling uses two parallel plate-pairs, separated by a gap: The energy fed to the receiver plate is dependent on the electric field in both plate pairs. ICPT operates based on magnetic field and CCPT is based on electric field.
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