Effects of Misalignment between Filamentary Circular Coils Arbitrarily Positioned in Space

This paper investigates the effects of lateral and angular misalignments between filamentary circular coils which are arbitrarily positioned in space. This investigation is achieved by computing the mutual inductance and the magnetic force between filamentary circular coils based on the advanced and relevant models which are obtainable in the literature. Detailed results obtained using SCILAB application software show that as the arbitrary misalignments increase the mutual inductance and the magnetic force between the filamentary circular coils decrease and increase with respect to certain variable rotation angle at any point of the secondary coil. This investigation shows that to successfully transfer electrical energy over a relatively large air-gap via high frequency magnetic fields, issues regarding arbitrary lateral and angular misalignments must be considered in the model to be designed for the contactless inductive power transfer (CIPT) transformer.