An omnidirectional wireless power transmission system and its optimal control method

A technology of wireless power transmission and control method, applied in circuit devices, electrical components, etc., can solve problems such as difficulty in applying multiple loads and changing loads, inability to accurately identify foreign objects, and difficulty in accurate measurement by instruments, so as to achieve a simple and easy implementation method. , to achieve the effect of identifying foreign objects and controlling electromagnetic radiation, and the optimal power transmission efficiency

CN107508389BActive Publication Date: 2020-01-14FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-01-14

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Abstract

The present invention relates to an omnidirectional wireless electric energy transmission system and a searching optimization control method thereof. The system comprises an emission module, a receiving module and a wireless communication module, the emission module comprises a high-frequency inversion circuit, an emission side compensation network and an emission coil which are connected in order, the emission coil is formed by more than two quadrature coils, and the system also comprises a central processing unit; the receiving module comprises a receiving coil, a receiving side compensation network, a high-frequency rectification circuit, a receiving side electric energy conversion circuit, a load and a sampling feedback circuit which are connected in order; and the central processing unit is configured to realize data receiving and processing of the emission coil, the receiving coil and the sampling feedback circuit to realize omnidirectional wireless electric energy transmission. The omnidirectional wireless electric energy transmission is realized, omnidirectional scanning and addition of a communication module realize the wireless electric energy transmission with maximum efficiency strategy to realize that the method is simple and easy to operate; and moreover, the time division multiplexing charging method is employed to dynamically satisfy the charging demands of all the loads and perform demand customization.
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Description

technical field

[0001] The invention relates to an omnidirectional wireless power transmission system and an optimization control method thereof. Background technique

[0002] Wireless Power Transfer (WPT) is a technology with broad application prospects. It has the advantages of convenient use, safe charging, and the ability to work in harsh environments. It can be used in fields such as electric vehicles, smart homes, implantable medical care, and underground operations. Although scientists such as Tesla conducted research on this technology in the early 20th century, it was limited by factors such as theory and funding, but it was not until recent years that it began to develop rapidly into a new industry. Generally speaking, wireless power transmission methods can be divided into far electromagnetic field radiation and near electromagnetic field coupling.

[0003] Due to the moderate transmission distance and power level, resonant wireless power transmission is the mos...

Examples

Embodiment Construction

[0064] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0065] Such as Figure 5 As shown, an omnidirectional wireless power transmission system of the present invention. Its hardware system structure includes: high frequency inverter circuit 1, transmitting side compensation network 2, transmitting coil 3, receiving coil 4, receiving side compensation network 5, high frequency rectification circuit 6, receiving side power conversion circuit 7, load 8, original A secondary side communication module (that is, a wireless communication module 9 ), a sampling feedback circuit 10 , and a central processing unit 11 .

[0066] The high-frequency inverter source is converted from a DC source to a high-frequency AC with a switching frequency of 100k-30MHz through a class E power amplifier or a half-bridge or full-bridge circuit, and serves as a high-frequency inverter source to supply energy to the tr...