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Magnetic coupling resonant wireless energy transmission apparatus and method

A wireless energy transmission, resonant technology, applied in circuit devices, electrical components, etc., can solve the problems of inability to take into account output power and transmission efficiency, sensitivity to changes in distance and load, etc., to improve controllability and good overall performance. , avoid bulky effects

Active Publication Date: 2017-03-29
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing magnetic coupling resonant wireless energy transmission cannot take into account both output power and transmission efficiency, and is sensitive to changes in distance and load problem, providing a magnetically coupled resonant wireless energy transmission device and method

Method used

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  • Magnetic coupling resonant wireless energy transmission apparatus and method
  • Magnetic coupling resonant wireless energy transmission apparatus and method
  • Magnetic coupling resonant wireless energy transmission apparatus and method

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with examples, but the present invention is not limited to these examples.

[0027] The MCR-WPT device based on the optimal load tracking of power power uses power power as the control concept. combine figure 1 The concept is introduced as follows:

[0028] The equivalent circuit model of the MCR-WPT system using the string topology is as follows: figure 1 shown. In the figure, L 1 , L 2 , C 1 , C 2 , R 1 , R 2 are the equivalent inductance, equivalent capacitance and equivalent resistance of the transmitting coil and receiving coil, respectively. I 1 , I 2are the currents in the transmitting coil and receiving coil respectively, M is the mutual inductance between the two coils, D is the distance between the two coils, R L is the equivalent load, U S For high frequency power. Depend on figure 1 The calculation formulas of output power and transmission efficiency of the available system a...

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Abstract

The invention discloses a magnetic coupling resonant wireless energy transmission apparatus and method. The apparatus comprises an emission apparatus and a receiving apparatus. The emission apparatus comprises a high-frequency power supply, an impedance matching network, a detection system and an emission coil. The receiving apparatus comprises a receiving coil, a rectification filtering circuit, a cascading conversion circuit, a control system and a load. According to the invention, a real-time detection and automatic adjustment apparatus is added to a wireless energy transmission. When a transmission distance and the load are changed, transmission performance of the system is detected in real time, free automatic control adjustment can be realized according to requirements of people, and large-power and high-efficiency transmission of the system can be guaranteed. The magnetic coupling resonant wireless energy transmission apparatus and method have vital significance in giving full play to middle and long-term distance advantages of such a technology and enhancing practicality of the technology.

Description

technical field [0001] The invention relates to the technical field of wireless energy transmission, in particular to a magnetic coupling resonance wireless energy transmission device and method. Background technique [0002] At this stage, the transmission of electric energy is mainly carried out in a wired manner (that is, using cables as the electric energy transmission medium), so losses are prone to occur during electric energy transmission, which reduces transmission efficiency; the aging of lines and the occurrence of tip discharges will also affect power consumption. The life and safety of the equipment; at the same time, it is difficult to charge, maintain, and have poor flexibility in harsh environments such as rain and snow, human implanted medical devices, underwater, and mines. Many disadvantages of the above traditional wired charging can be effectively solved by wireless energy transmission technology. Wireless energy transmission, also known as non-contact p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12
Inventor 范兴明贾二炬张鑫
Owner GUILIN UNIV OF ELECTRONIC TECH
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