Composite Control of Wireless Charging System Based on SS Coupling
Wireless charging technology,with its characteristics of convenience,reliability,and intelligence,holds vast application prospects in the field of charging.Given that the transmission efficiency of wireless charging systems is susceptible to load variations,this paper proposes a compound control method for SS coupling that combines impedance-matching-based maximum efficiency tracking with PI-controlled constant voltage output.Firstly,the parameters and transmission efficiency of the SS-type wireless charging system are analyzed.Secondly,a DC/DC controller is employed on the secondary side to achieve maximum efficiency tracking,while a PI controller is used on the primary side to adjust the load-side voltage for constant voltage output.Finally,experimental simulations demonstrate the effectiveness and feasibility of this method.
wireless charging systemmaximum efficiency trackingconstant voltage outputPI-controlled
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