Wireless Charging System Using Secondary-side Interleaved Buck Converter and Magnetic Integrated Coupler

2021 ◽  
Author(s):  
Yuhong Tian ◽  
Zhenjie Li ◽  
Hao Liu
Keyword(s):  
Buck Converter ◽  
Wireless Charging ◽  
Charging System ◽  
Secondary Side

scholarly journals Primary Control Method of Wireless Charging System Based on Load Characteristics

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1269 ◽  
Author(s):  
Guodong Chen ◽  
Chao Rao ◽  
Yue Sun ◽  
Zhenxin Chen ◽  
Chunsen Tang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Control Method ◽  
Lithium Ion ◽  
Input Voltage ◽  
Constant Current ◽  
Primary Control ◽  
Wireless Charging ◽  
Charging System ◽  
Equivalent Load ◽  
Secondary Side

Aiming at the output control issues of a lithium ion battery wireless charging system, a primary side control method based on load characteristic identification is proposed. The primary side impedance is calculated by detecting the effective value of the primary side voltage and current, and the mapping relationship between the equivalent load and the primary side impedance is established based on the AC impedance model. Using this mapping relation, the output of the secondary side can be regulated indirectly by controlling the input voltage of the inverter. Compared with the traditional control methods, the proposed control method not only eliminates the communication requirement between the primary side and secondary side, but also simplifies the hardware circuit design, reduces the complexity of the control circuit and also reduces the volume and cost of the system. In the paper, the impedance characteristics of the lithium ion battery at constant current and constant voltage stage are analyzed. The principle of the primary side control method is expounded and the realization method is given. The feasibility of the proposed control method is verified by simulation and experiment.

scholarly journals Efficient Power Management Strategy of Electric Vehicles Based Hybrid Renewable Energy

2021 ◽  
Vol 13 (13) ◽  
pp. 7351
Author(s):  
Naoui Mohamed ◽  
Flah Aymen ◽  
Ziad M. Ali ◽  
Ahmed F. Zobaa ◽  
Shady H. E. Abdel Aleem
Keyword(s):  
Power Management ◽  
Energy Resource ◽  
Buck Converter ◽  
Wireless Charging ◽  
Charging System ◽  
Pv Systems ◽  
Management Algorithm ◽  
Power Management Strategy ◽  
Battery State Of Charge ◽  
Efficient Power

This paper presents a straightforward power management algorithm that supervises the contribution of more than one energy source for charging a vehicle, even if the car is in motion. The system is composed of a wireless charging system, photovoltaic (PV) generator, fuel cell (FC), and a battery system. It also contains a group of power converters associated with each energy resource to make the necessary adaptation between the input and output electrical signals. The boost converter relates to the PV/FC, and the boost–buck converter is connected with the battery pack. In this work, the wireless charging, FC, and PV systems are connected in parallel via a DC/DC converter for feeding the battery bank when the given energy is in excess. Therefore, for each of these elements, the mathematical model is formulated, then the corresponding power management loop is built, which presents the significant contribution of this paper. The efficient power management methodology proposed in this work was verified on Matlab/Simulink platforms. The battery state of charge and the hydrogen consumption obtained results were compared to show the effectiveness of this multi-source system.

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