Abstract
Focusing on the tradeoff problem between the output power and transmission efficiency of magnetic coupling resonance wireless power transmission (MCRWPT) system, this paper firstly analyzes the series–series topology system by using the mutual inductance theory of concentrated parameters, and proposes the concept of power-efficiency composite function by using the method of normalization of output power and then the WPT system is assigned a weight factor. Based on that, the calculation expression of the optimal resonant frequency is obtained. The correctness of theoretical analysis is verified by simulation and experimental platform, which provides a useful reference for further improvement of power-efficiency synchronization and energy saving.
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