Analysis of LC-LC2 Compensated Inductive Power Transfer for High Efficiency and Load Independent Voltage Gain

Energies

Muhyaddin Jamal Hosin Rawa¹  Hussain Bassi²  Saad Mekhilef³  Md Morshed Alam³ 

[1] Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia;Department of Electrical and Computer Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia;Power Electronics and Renewable Energy Research Laboratory, Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

关键词: load independent voltage gain;    zero phase angle (ZPA);    resonant converter;    inductive power transfer (IPT);   

DOI  :  10.3390/en11112883

来源: DOAJ

【 摘 要 】

A novel LC-LC² compensated resonant converter topology with high efficiency and good controllable voltage gain is presented in this paper. An additional receiving side inductor working together with the receiving coil has the contribution to work with a large range of air gap distance. Due to this property, proposed compensation technique is effective for IPT based EV charging application. Voltage gain with independent of load and input impedance having ZPA of the proposed resonant converter are observed by the frequency domain analysis. On the other hand, time domain analysis gives the circuit operation. A 500 W LC-LC² compensated resonant converter prototype is built to testify the theoretical analysis. To observe the efficiency-comparison, an S-SP compensated resonant converter with a similar amount of output power under different air gap is also presented. In order to justify the effectiveness, the proposed compensation method is verified by the laboratory results. The highest efficiency of the proposed compensated resonant converter is 93% with output power of 500 W at 140-mm air gap between the two sides of the IPT (inductive power transfer) transformer.

【 授权许可】

Unknown