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Magnetic resonant wireless energy transmission system based on SS topology

A wireless energy transmission and magnetic resonance technology, applied in the control/regulation system, adjusting electrical variables, transportation and packaging, etc., can solve the problems of complex system and low load efficiency, improve system efficiency, improve output impedance, improve transmission The effect of efficiency

Active Publication Date: 2019-06-21
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the above-mentioned prior art, and propose a magnetic resonance wireless energy transmission system based on SS topology, which is used to solve the problems of low efficiency and complex system when the load is large in the prior art question

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  • Magnetic resonant wireless energy transmission system based on SS topology
  • Magnetic resonant wireless energy transmission system based on SS topology
  • Magnetic resonant wireless energy transmission system based on SS topology

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0035] refer to figure 1 , the present invention includes an input power module 1, a primary inverter module 2, a primary impedance matching module 5, a WPT module 3, a secondary impedance matching module 6 and a secondary rectifying and filtering module 4 connected in sequence, wherein:

[0036] The input power supply module includes a commercial power input module 11 and a DC_DC step-down module 12. The commercial power input module 11 includes a second filter capacitor C connected to a power frequency rectifier bridge at one end and grounded at the other end; the power frequency rectifier The bridge converts the input 220V / 50Hz AC mains into DC with large pulsating components, and after being filtered by the second filter capacitor, its pulsating components are greatly eliminated, and the smooth and stable output is 308V±10% high-voltage DC ...

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Abstract

The invention provides a wireless energy transmission system based on SS topology. The system is used for solving the technical problems that efficiency is low and a system is complicated when a loadis large in the prior art. The system comprises an input power module composed of a mains input module and a DC_DC voltage reduction module jointly, a primary inversion module, a primary impedance matching module, a WPT module, a secondary impedance matching module and a secondary rectifying and filtering module. According to the system, by designing the structure that a primary coil and a secondary coil in the WPT module are formed after wires are spirally wound around the bottoms of two U-shaped magnetic cores with openings arranged oppositely and by designing the secondary impedance matching module to match output impedance of the WPT module to reach an optimal load point, the transmission efficiency of the system is improved. Besides, the primary impedance matching module is designed to improve output impedance of the primary inversion module, the input power module consisting of the DC_DC voltage reduction module and the mains input module is applicable and replaces a complicateddirect-current voltage-stabilized power module or a transformer-contained switching power module, and therefore the system is simplified.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission, and relates to a magnetic resonance wireless energy transmission system, in particular to a magnetic resonance wireless energy transmission system based on SS topology, which is used for wireless power supply of relatively large loads. Background technique [0002] Wireless Power Transmission (WPT) technology has always been a hot topic in human research, and it mainly transmits power to power supply equipment in a non-contact manner. Compared with wired energy transmission, it avoids unsafe power supply factors such as electric sparks, exposed wires, and wear and tear during the process of obtaining energy mainly through wire connections between electrical equipment. The emergence of wireless energy transmission technology has opened up a new way of power supply for some special occasions: for example, the power supply of sealed environment, rotating parts, underwater monito...

Claims

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Application Information

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IPC IPC(8): H02J50/12H02J7/02H02M3/156H02M3/335
CPCY02B70/10
Inventor 史琰杨杰沈华王鹏李龙
Owner XIDIAN UNIV
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