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The working frequency optimization method of the radio energy transmission system based on the three coil structure

A technology of wireless power transmission and working frequency, applied in the direction of system integration technology, design optimization/simulation, information technology support system, etc., can solve problems such as low efficiency, and achieve overcoming difficulties in adjusting parameters, high-efficiency wireless power supply, and wireless transmission efficiency Improved effect

Active Publication Date: 2022-04-19
杭州电子科技大学温州研究院有限公司 +1
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Problems solved by technology

[0006] In order to overcome the existing problem of inefficiency caused by the frequency splitting phenomenon, the present invention provides a frequency optimization method of a three-coil structure to improve transmission efficiency

Method used

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  • The working frequency optimization method of the radio energy transmission system based on the three coil structure
  • The working frequency optimization method of the radio energy transmission system based on the three coil structure
  • The working frequency optimization method of the radio energy transmission system based on the three coil structure

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Embodiment Construction

[0047]In order to make the technical content and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0048] A method for optimizing the working frequency of a wireless power transmission system based on a three-coil structure. The three optimized coils are all single-turn printed directional coils, and their cross-sections are rectangular; figure 1 Shown is a top view of the planar coil.

[0049] Such as figure 2 As shown, the wireless power transmission system corresponding to the optimization method includes a resonant wireless power transmitting circuit, a resonant wireless power relay circuit and a resonant wireless power receiving circuit. The resonant wireless power transmission circuit includes a transmission source V s , drivi...

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Abstract

The invention discloses a method for optimizing the working frequency of a wireless power transmission system based on a three-coil structure. The working frequency optimization method is as follows: 1. Determine the resonant frequency f of the optimized wireless power transmission system, and obtain the resonant angular frequency w according to the resonant frequency f 0 . 2. Set the angular frequency of the sending coil as the first peak angular frequency w 2 or the second peak angular frequency w 3 . The present invention establishes the efficiency calculation method of the three-coil structure through the principle of reflection impedance, and based on this, only by adjusting the operating frequency of the transmitting power source outside the body while avoiding changing the load, coil size structure, distance and other factors, the wireless Improvement of transmission efficiency. When it is applied to implantable medical treatment, it can overcome the defect that the coil in the body is difficult to adjust parameters when the frequency splitting phenomenon leads to a decrease in efficiency, and realize high-efficiency wireless power supply for implantable medical treatment.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a method for optimizing a working frequency in wireless power transmission, thereby improving system transmission efficiency. Background technique [0002] With the advancement of science and technology, wireless power transmission technology has been widely used in industrial electronics, implanted medical electronics, smart home and other fields because of its characteristic of transmitting electric energy without contact, which eliminates the inconvenience of wire connection. Especially in the field of implantable medical treatment, it helps people solve the problem that the power supply of implantable medical devices requires regular surgery to replace the battery in the body, which is cumbersome and easy to cause inflammation, infection, cell necrosis and other damage. [0003] In implantable medicine, in order to maintain a stable and effecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F17/10G06Q10/04G06Q50/06H02J50/12
CPCG06F30/20G06F17/10G06Q10/04G06Q50/06H02J50/12Y04S10/50Y02E40/70
Inventor 程瑜华陈程王明浩王高峰李文钧
Owner 杭州电子科技大学温州研究院有限公司
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