Abstract
The paper presents optimal operating point tracking algorithm for wireless charging system using identical coupling coils providing us to meet simultaneously high efficiency and high transmitted power under varied load and detuning conditions. The proposed method is suitable either for purely resistive load or battery load and it is based on phase-shift control between the primary and the secondary voltage. The paper also gives an intuitive mathematical description of the key control idea and demonstrates its operational abilities. The proposed algorithm is finally implemented into digital signal processor (DSP) and tested on 4 kW laboratory prototype of shielded wireless power transfer system.
Highlights
Over the past few years the modern industry has recorded a huge and intensive development that has brought many technical upgrades in public transportation leading in less energy consumption and improving environmental issues
The initial concept of EV comes from the previous experience with hybrid electric vehicles (HEVs), which later evolved into the popular plug-in hybrid vehicles (PHEVs)
The method is suitable for wireless power transfer (WPT) systems where method to maximise the operational efficiency is proposed in [44]
Summary
Over the past few years the modern industry has recorded a huge and intensive development that has brought many technical upgrades in public transportation leading in less energy consumption and improving environmental issues. Another crucial solution is describedpower in [43],isbut itsreached major drawback that the resistive and the of maximum efficiency and transmitted not widely.isAnother effective method to reactive part of the load impedance cannot be controlled independently, and the maximise the operational efficiency is proposed in [44] It uses matching the converter’s output overlapping of maximum efficiency and transmitted power is not reached widely. The method is suitable for WPT systems where method to maximise the operational efficiency is proposed in [44] It uses matching the converter’s the application requires the variable load, the changing mutual coil position, and the fluctuating output frequency with the receiver’s self-resonant frequency. Battery load, and it is based on phase-shift control between the primary and the secondary voltage
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