Optimised design of LCC-S compensation topologies for wireless power transfer with dynamic load for electric vehicles
by Ning Wang; Qingxin Yang
International Journal of Vehicle Information and Communication Systems (IJVICS), Vol. 6, No. 2, 2021

Abstract: This paper proposes LCC-S compensation network structure to solve the problem of dynamic load changing that generally exists in wireless power transfer system. Transmitter current, phase angle, power factor, output power and efficiency are also analysed when the load changes. By preparing experimental platform and taking three-phase permanent magnet synchronous motor as equivalent load, we study the relationship between output power of the motor and output current of the transmitter under different motor speed and torque. We find the output current is stable at 1.87 A with resonant frequency at 20 kHz. Finally, system parameters are optimised by changing the ratio of each compensation element parameter, improving the output efficiency by 7.69%.

Online publication date: Wed, 26-May-2021

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