We develop a new kind of underwater inductive coupling power transfer(ICPT)system to evaluate wireless power transfer in autonomous underwater vehicle(AUV)docking applications.Parameters that determine the performance...We develop a new kind of underwater inductive coupling power transfer(ICPT)system to evaluate wireless power transfer in autonomous underwater vehicle(AUV)docking applications.Parameters that determine the performance of the system are systematically analyzed through mathematical methods.A circuit simulation model and a finite element analysis(FEA)simulation model are developed to study the power losses of the system,including copper loss in coils,semiconductor loss in circuits,and eddy current loss in transmission media.The characteristics of the power losses can provide guidelines to improve the efficiency of ICPT systems.Calculation results and simulation results are validated by relevant experiments of the prototype system.The output power of the prototype system is up to 45 W and the efficiency is up to 0.84.The preliminary results indicate that the efficiency will increase as the transmission power is raised by increasing the input voltage.When the output power reaches 500 W,the efficiency is expected to exceed 0.94.The efficiency can be further improved by choosing proper semiconductors and coils.The analysis methods prove effective in predicting the performance of similar ICPT systems and should be useful in designing new systems.展开更多
Inductive coupled wireless power transfer(WPT)system transfers energy through the magnetic field.The magnetics field distribution of WPT system has significantly influence on the transmission efficiency and misalignme...Inductive coupled wireless power transfer(WPT)system transfers energy through the magnetic field.The magnetics field distribution of WPT system has significantly influence on the transmission efficiency and misalignment tolerance.This study investigates the magnetic field distribution of WPT system and presents a magnetic field distribution analytical model for WPT system.The analytical model is based on Fourier analysis method,and it can be applied in the cases of coil with air core and with Ferrite core.Furthermore,the finite element simulation model and experiment are conducted.The results of analysis,simulation and experiment are in good agreement.展开更多
基金Project supported by the National High-Tech R&D Program of China(No.2013AA09A414)the National Natural Science Foundation of China(No.51221004)the Interdisciplinary Research Foundation of Zhejiang University(No.2012HY003A)
文摘We develop a new kind of underwater inductive coupling power transfer(ICPT)system to evaluate wireless power transfer in autonomous underwater vehicle(AUV)docking applications.Parameters that determine the performance of the system are systematically analyzed through mathematical methods.A circuit simulation model and a finite element analysis(FEA)simulation model are developed to study the power losses of the system,including copper loss in coils,semiconductor loss in circuits,and eddy current loss in transmission media.The characteristics of the power losses can provide guidelines to improve the efficiency of ICPT systems.Calculation results and simulation results are validated by relevant experiments of the prototype system.The output power of the prototype system is up to 45 W and the efficiency is up to 0.84.The preliminary results indicate that the efficiency will increase as the transmission power is raised by increasing the input voltage.When the output power reaches 500 W,the efficiency is expected to exceed 0.94.The efficiency can be further improved by choosing proper semiconductors and coils.The analysis methods prove effective in predicting the performance of similar ICPT systems and should be useful in designing new systems.
基金supported by Beijing Nova Program(Grant No.20220484153).
文摘Inductive coupled wireless power transfer(WPT)system transfers energy through the magnetic field.The magnetics field distribution of WPT system has significantly influence on the transmission efficiency and misalignment tolerance.This study investigates the magnetic field distribution of WPT system and presents a magnetic field distribution analytical model for WPT system.The analytical model is based on Fourier analysis method,and it can be applied in the cases of coil with air core and with Ferrite core.Furthermore,the finite element simulation model and experiment are conducted.The results of analysis,simulation and experiment are in good agreement.
