Method, device and storage medium for determining efficiency of wireless power transmission system

Abstract

The present invention provides a method, device and storage medium for determining the efficiency of a wireless power transmission system, the method comprising: determining the conduction loss of each diode in the inverter, the conduction loss of each switch, the turn-off loss of each switch and the switching loss of each diode based on the inverter output current considering high-order harmonics and the working state of the inverter; determining the loss of the inverter based on the conduction loss of each diode, the conduction loss of each switch, the turn-off loss of each switch and the switching loss of each diode; determining the efficiency of the wireless power transmission system based on the loss of the inverter. The method for determining the efficiency of a wireless power transmission system provided by the present invention determines the inverter loss by considering the inverter output current of the high-order harmonics and the working state of the inverter, fully considers the influence of harmonics, improves the accuracy of the inverter loss calculation, and thus improves the accuracy of the wireless power transmission system efficiency calculation.

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