POWER TRANSMISSION SYSTEM

摘要

[Problem] To provide a power transmission system capable of determining a suitable frequency during power transmission and performing an efficient power transmission. [Solution] A power transmission system according to the present invention includes an inverter unit (130) which converts a DC voltage to an AC voltage having a given frequency and outputs the converted AC voltage, a transmission antenna (140) into which the AC voltage from said inverter unit (130) is input, and a transmission control unit (150) which controls the frequency of the AC voltage output from said inverter unit (130), and said transmission antenna (140) transmits electric energy to an opposing receiving antenna via an electromagnetic field, wherein said transmission control unit (150) controls the power transmission such that the power transmission is performed with a frequency selected so that the antenna unit is seen as a constant-voltage source when viewed from a load side.