Fast charging of emerging wireless power transfer for medium-power applications

• Main Author: Goh, Yu Xiong
• Other Authors: Yun Yang
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2024
• Subjects: Engineering; Wireless charging
• Online Access: https://hdl.handle.net/10356/177113
• Institution: Nanyang Technological University

Since 2010,wireless power transfer(WPT) standard Qi has been introduced. Wireless Power Consortium(WPC) have been expanding to WPT applications into mid-power and high-power realms, including electric vehicles(EV)charging. Fast charging technology offers a solution for users to quicky charge their devices such as electric vehicles(EV).By using of wireless power transfer system, user can charge cable-free while achieving faster charging times, enhancing overall user experience, and increasing productivity. However, implement of this system in the medium power applications poses its unique challenges such as optimizing efficiency ,managing heat dissipation, and maintaining safety standards. Therefore, we need to develop a solution to simulate and overcome such challenges. For this project, a dual active bridge converter and a PI controller will be designed to supply an optimum constant current to ensure that the battery will not be overheating when charged at the current and ensure fast charging is achieved. PI controller is used to generate the duty ratio for the switching component to achieve a change in constant current.