Enhanced Pulse Density Modulation for Efficiency Optimization in Inductive Power Transfer Systems
An enhanced pulse density modulation(EPDM)is proposed to optimize the efficiency in inductive power transfer(IPT)systems under various coupling and load.It controls the optimal output voltage without estimating the mutual inductance,which improves the efficiency and eliminates the communication between the primary and secondary side.Further,the four working modes of semi-bridgeless active rectifier(S-BAR)are combined uniformly by the EPDM based on △∑ modulation,which increases density resolution and decreases the output voltage ripple.Besides,the soft switching can be ensured by synchronous signals.The effectiveness of the method is confirmed by simulations and experiments.
Inductive power transfer (IPT) Efficiency optimization Voltage regulation Enhanced pulse density modulation (EPDM) DR modulation
Hong Zheng Rui Bian Yubing Gu
School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China
国际会议
江苏镇江
英文
166-173
2019-09-20（万方平台首次上网日期，不代表论文的发表时间）