During the operation of wireless charging equipment, it generates a certain level of electromagnetic impact on the surrounding environment. Based on electromagnetic safety constraints and corresponding guidelines, a transient field co-simulation was conducted using ANSYS circuit modeling and finite element calculation software. This simulation focused on the electromagnetic environment generated by a 3 kW wireless charging system (magnetic coupling resonant wireless charging device, electric vehicles with four types of metal materials, and a 175 cm tall adult human). The study calculated the impact of the wireless charging system at varying distances on the magnetic induction intensity and specific absorption rate in vital human organs (brain, lungs, heart, liver, stomach, spleen, kidneys, and pancreas). The results indicate that when high-power wireless charging systems are used for electric vehicles, the vehicle body can provide an ideal electromagnetic shield, and the magnetic induction intensity in vital human organs does not exceed international and domestic limits.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Simulation Analysis of Electromagnetic Environment Safety in Wireless Charging System for Electric Vehicle

  • Qian Qiang,
  • Zhao Zijian,
  • Yan Lihua,
  • Chen Hai,
  • Zhao Yang

摘要

During the operation of wireless charging equipment, it generates a certain level of electromagnetic impact on the surrounding environment. Based on electromagnetic safety constraints and corresponding guidelines, a transient field co-simulation was conducted using ANSYS circuit modeling and finite element calculation software. This simulation focused on the electromagnetic environment generated by a 3 kW wireless charging system (magnetic coupling resonant wireless charging device, electric vehicles with four types of metal materials, and a 175 cm tall adult human). The study calculated the impact of the wireless charging system at varying distances on the magnetic induction intensity and specific absorption rate in vital human organs (brain, lungs, heart, liver, stomach, spleen, kidneys, and pancreas). The results indicate that when high-power wireless charging systems are used for electric vehicles, the vehicle body can provide an ideal electromagnetic shield, and the magnetic induction intensity in vital human organs does not exceed international and domestic limits.