Extension of ZVS Region of Series-Series WPT Systems by an Auxiliary Variable Inductor for Improving Efficiency

To maintain a stable output voltage under various operating conditions without introducing extra dc/dc converters, phase-shift (PS) control is usually adopted for wireless power transfer (WPT) systems. By using this method, however, zero-voltage switching (ZVS) operation cannot be guaranteed, especi...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2021-07, Vol.36 (7), p.7513-7525
Main Authors: Li, Yong, Liu, Shunpan, Zhu, Xiao, Hu, Jiefeng, Zhang, Min, Mai, Ruikun, He, Zhengyou
Format: Article
Language:English
Subjects:
Efficiency
Electric converters
Electric potential
Electromagnetic interference
Frequency control
Impedance
Inductance
Inverters
Phase-shift (PS) control
Switches
Switching
variable inductor (VI)
Voltage
Voltage control
Voltage converters (DC to DC)
wireless power transfer (WPT)
Wireless power transmission
Zero voltage switching
zero-voltage switching (ZVS)
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