The Effect Of Electric Vehicle Radio Charging Space Electromagnetic Field On The Biological Activity Of Blood Cells

In recent years,the development of electric vehicles is becoming more and more rapid,but the current charging method of plug-in has the disadvantages of time consuming,unsafe,the interface that is not unified and so on.Therefore,this dissertation proposes a new energy supply mode-wireless power charging.The new power supply mode of wireless charging for electric vehicles not only can overcomes the disadvantages of plug-in,but also has the advantages of higher space utilization and higher user experience.At home and abroad,the,wireless power transmission study of the electric vehicles has become a hot spot.But in the process of wireless power transmission,the primary problem restricting the development of electric vehicle wireless charging is whether electromagnetic radiation on the surrounding organisms will cause safety effect or harmful impact.It is a blank study at the same time.In this dissertation,the research work of electromagnetic radiation in wireless charging of electric vehicles to organism is presented:1.From the perspective of electromagnetic radiation to human health,it is necessary to meet the limit of electromagnetic safety.It is to summarize and analyze the electromagnetic protection safety standards in power frequency and radio frequency at home and abroad-GB8702-2014,ICNIRP-2010 and IEEE-2010.The GB8702-2014 and the ICNIRP-2010 public limiting exposure in electric vehicle charging frequency band are compared.2.To study the electromagnetic induction distribution of the electric vehicle during wireless charging process,the finite element simulation model is built and the magnetic field distribution of the resonant coil with different input power are simulated and summarized.On this basis,the actual electric vehicle model,the adult model and the coils model are built.The magnetic induction intensity and electric field intensity of the human body inside and outside the vehicle are obtained.3.An experimental prototype of electric vehicle wireless charging and a measurement method for electromagnetic exposure on electric vehicle are set up.The selected test points of the outer space and the internal space are carried out using the three-dimensional electromagnetic radiation analyzer.The experimental results that the magnetic induction intensity and the electric field intensity distribution in different positions confirm the reliability of the simulation results.4.The electromagnetic exposure experiments were conducted for two hours a day in 30 days under the maximum intensity of electromagnetic exposure.Results showed the changes of blood routine and biochemical indexes of peripheral blood cells of mice before and after exposure.The electromagnetic safety evaluation of electric vehicle charging system is carried out from the perspective of molecular biology.