Review of wireless charging coupler for electric vehicles

In recent years, there has been an increasing interest in electric vehicles. However they are still not a major choice for the consumer. This is probably due to many reasons including price and driving range, which is largely due the limitations of current battery technology and the speed with which they can be charged. Wireless charging systems have shown potential for electric vehicle charging. They are convenient, safe when compared to traditional plug-in charging systems. Wireless charging can help reducing electric vehicle pricing if it is done during travel because this will minimize the required battery storage on board. However wireless charging is still limited by the wireless coupler - they currently have low transfer efficiency. This paper presents a state-of-the-art literature review on the recent advancements in charging coupler design.