Abstract

These days, a growing number of research studies have been carried out on wireless power transfer (WPT) technology because of its simplicity, safety, and adaptability. It has been used in a wide range of applications, including implantable devices, consumer electronics, and electrical vehicles (EVs), since the wire connection is avoided. This paper's main goal is to investigate the variables that affect Inductive Resonance Wireless Power Transfer (IRWPT) systems specifically and Wireless Power Transfer (WPT) systems generally. Furthermore, a thorough analysis of the coil and compensation circuit design procedure is carried out. The quality factor and mutual inductance are the main aspects affecting the system that is being studied. The study also covers three compensation topologies: inductor-capacitor-series (LCC-S), series-series (SS), and series-parallel (SP). The possibility of adjusting the power transmission efficiency (PTE) using multiple compensation topologies has been explored in this work using a variable frequency source. This has been achieved through the development of a mathematical model that enhances system performance and efficiency. The proposed models have been assessed using case studies and simulations. The study's findings indicated that because SS topology has a higher power output, it can be used for heavy-load applications like electric vehicle (EV) instantaneous wireless charging. The SP topology is better suited for light-load scenarios because of its low power capability. While LCC-S extends the transmission range, distance differences also have a major effect on it. For mobile devices, it is therefore improper. Lastly, a grid-like application for electronics and home appliances supplied by users is proposed.