ELECTRICAL POWER TRANSMISSION SYSTEM

摘要

In order to provide an electrical power transmission system in which the frequency can be decided easily and accurately when electrical power is transmitted and in which energy transfer efficiency is improved, this electrical power conveying system is characterized by comprising a switching element (106) for converting direct voltage to alternating voltage of a designated frequency and outputting the same, a power transmission antenna unit (108) into which the outputted alternating voltage is inputted, a current detector (107) for detecting current flowing to the power transmission antenna unit, a timer unit (110) for measuring the difference in time between a time at which the switching element is switched on and a time when the current detector detects zero current, and a frequency setter (110) for setting the frequency on the basis of the time measured by the timer.