An adaptive frequency tracking wireless energy transmission receiving device and receiving method thereof

Abstract

The invention provides an adaptive frequency tracking type wireless energy transmission receiving device and method. The device comprises a receiving coil 9, a sampling detecting device 10, a magnetic core 11, a control coil 12, a control circuit 13, a capacitor 14, a detecting control device 15, a switch 16, a filter rectifying circuit 17 and a storage battery 18; the inductance of the coil is increased or reduced to maximize the current peak value in an oscillating circuit; when the current peak value in the oscillating loop is more than the set value is Imax2, the switch 16 is controlled to be turned off at the next current zero passing point, and then the capacitor charges the storage battery 18; when the voltage of two ends of the capacitor is less than the set value Umin, the switch 2 is controlled to be turned on, and thus the oscillating circuit senses and oscillates again; therefore, the discontinuous energy consumption is started; the transmission frequency can be automatically tracked; the resonance point deviation can be corrected; the energy transmission efficiency can be increased.

Description

technical field [0001] The invention relates to a high-voltage power grid induction power-taking device, which takes energy out of a power transmission line, transmits the energy to an energy receiving device on a power transmission tower through a wireless energy transmission device, and supplies energy for monitoring equipment on the tower. An adaptive frequency tracking wireless energy transmission receiving device and a receiving method thereof. Background technique [0002] Wireless Power Transmission (WPT) is a technology for energy transfer by means of electromagnetic waves. With the development of science and technology, traditional power transmission methods are also difficult to meet its power supply needs. Therefore, the importance of developing wireless power transmission technology has become increasingly prominent. [0003] Wireless power transmission can be roughly divided into: electromagnetic induction, electromagnetic radiation and electromagnetic resonan...

AI Technical Summary

Problems solved by technology

At present, the frequency of the coil at the receiving end is fixed, and the fixed frequency of the coil at the receiving end cannot be exactly equal to the transmitting frequency. When the transmitting frequency changes, the receiving end cannot adapt to the resonance point shift caused by the frequency change, resulting in a greatly reduced energy transfer efficiency.

Images