Investigation into the impacts of self-inductance and mutual inductance on saggy winding inductive coupling power transmission

This paper investigates the effects of self-inductance and mutual inductance on saggy coil magnetic resonant inductive coupling power transmission (IPT). The simulation of the saggy coil is conducted using a specialist tool called IPTVisual to visualise the phenomenon of saggy winding in the system. The results provide important intuitions for optimising saggy coil inductive coupling devices for better performance and reliability in a variety of applications. The setup of simulations and experimental shows a slight difference. The mutual inductance and coupling coefficient of two saggy coils are analysed and discussed. There is a difference of 1.74% in self-inductance in saggy coil with two fixed mounting point of 1 m distance when comparison is made between simulation and experimental results.