Optimization of coil inductance equations used in wireless power transfer for drone charging

This paper presents the self and mutual inductances of spiral and circular coil determination based on several equations types from the literature which will be chosen for comparison. The calculation equations of the self and mutual inductances will be solved using software; the theoretical results of the self-inductances will be compared with each other but also with the results of accurate measurements made with an RLC meter. At the same time, the exact equations determining the self-inductance results very close to reality will be established. Also, the limits of all self-inductance equations related to the coil dimensions will be drawn.