POWER TRANSMISSION SYSTEM

摘要

[Problem] To provide a power transmission system for which the generation of noise is suppressed and the leakage of noise is reduced. [Solution] This power transmission system transmits electrical energy to a secondary resonator having a secondary resonator coil (260) via electromagnetic waves of a prescribed frequency generated by a primary resonator of a primary resonator coil (160), and the power transmission system reduces noise by being provided with two noise cancelling resonators in which the prescribed frequency and at least one of the harmonic components of the prescribed frequency serve as a noise reduction target frequency. The power transmission system is characterized by comprising: a first noise cancelling resonator (300) that has a first noise cancelling resonator coil (310) and that has a resonance frequency higher than the noise reduction target frequency by a first shift frequency which is determined in accordance with the degree of coupling of the primary resonator coil (160) and the first noise cancelling resonator coil (310); and a second noise cancelling resonator (340) that has a second noise cancelling resonator coil (350) and that has a resonance frequency lower than the noise reduction target frequency by a second shift frequency which is determined in accordance with the degree of coupling of the primary resonator coil (160) and the second noise cancelling resonator coil (350).