Noncontact electric energy and signal synchronous transmission system and control method thereof

Abstract

The invention provides a noncontact electric energy and signal synchronous transmission system and a control method thereof, wherein the noncontact electric energy and signal synchronous transmission system and the control method belong to synchronous transmission systems and control methods thereof. The noncontact electric energy and signal synchronous transmission system comprises a DC voltage link, a high-frequency inversion link, a primary side energy conversion link, a secondary side energy conversion link, a primary side signal modulation link, a secondary side signal demodulating link and a load. The high-frequency inversion link is parallelly connected with the primary side energy conversion link and the primary side signal modulation link, thereby respectively forming a fundamental wave extraction channel and a third harmonic extraction channel. Through switching on and off a switching device in the primary side signal modulation link, the signal is loaded in a third harmonic channel circuit. A signal current is coupled with the primary side energy conversion link through a unity-coupled transformer. After an energy current and the signal current are simultaneously transmitted to the secondary side by a same loose coupling magnetic path mechanism, the energy current is separated from the signal current through the secondary side energy conversion link and the secondary side signal demodulating link, thereby realizing simultaneous transmission of the electric energy and the signal. The noncontact electric energy and signal synchronous transmission system and the control method thereof further have advantages of stable output power, high signal transmission rate, small size and high efficiency.

Description

technical field [0001] The invention relates to a synchronous transmission system and a control method thereof, in particular to a non-contact power and signal synchronous transmission system and a control method thereof. Background technique [0002] The emergence of non-contact power transmission technology has solved the problem of safe and reliable power transmission in some specific environments such as mobile devices and mines. In fields such as trams and mobile phone wireless charging, where non-contact power transmission technology is widely used at present, not only energy transmission is required to provide operating power for the system, but also synchronous transmission of signals is required to transmit control commands and feedback system operating status. At present, the non-contact power and signal synchronous transmission technologies widely studied mainly include the following types: [0003] (1) A signal coupling coil is added to transmit power and signal...

AI Technical Summary

Problems solved by technology

[0007] For methods (2), (3), and (4), limited by the signal transmission mode, the signal transmission rat

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