Multi-level bidirectional wireless electric energy transmission system and method

A two-way radio and transmission system technology, applied in the direction of control/regulation systems, electrical components, circuit devices, etc., can solve problems such as complex use scenarios and user needs, achieve large capacity, increase transmission capacity, and reduce the withstand voltage of switching devices Effect

Active Publication Date: 2021-08-17
CHINA ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, increasingly complex usage scenarios and user needs also pose more challenges to wireless power transfer technology

Method used

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  • Multi-level bidirectional wireless electric energy transmission system and method
  • Multi-level bidirectional wireless electric energy transmission system and method
  • Multi-level bidirectional wireless electric energy transmission system and method

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circ...

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Abstract

The invention discloses a multi-level bidirectional wireless electric energy transmission system and method. The system is divided into two completely identical sides, namely a main side and an auxiliary side, by taking a transmission coil as an axis, and each side is composed of three parts, namely a bidirectional DC-DC part, a three-level converter part and an LCC resonance part; the LCC resonance part is connected with the transmission coil, and the three-level converter part is connected between the bidirectional DC-DC part and the LCC resonance part; at the primary side, the bidirectional DC-DC part is connected with a power supply, and at the secondary side, the bidirectional DC-DC part is connected with a load. According to the invention, the transmission efficiency is improved by using a multi-level inverter, and the electric energy can flow bidirectionally.

Description

technical field [0001] The invention belongs to the technical field of wireless power transmission, and in particular relates to a multi-level two-way wireless power transmission system and method. Background technique [0002] Wireless power transmission is a technical means of non-contact power transmission without using cables through the principle of electromagnetic induction. Compared with traditional wired charging, wireless charging technology is convenient to use, safer, less prone to damage, and easy to automate. At the end of the 19th century, Tesla proposed the conjecture of wireless energy transmission. After more than a century, the research on wireless power transmission has never stopped. Until 2007, Marin et al. of the Massachusetts Institute of Technology proposed a magnetically coupled resonant wireless power transmission, which lit a 60-watt power grid at a distance of two meters. Light bulb. This makes the study of wireless power transfer regain widesp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M7/797H02M7/483H02M3/158H02M1/12H02M1/00H02J50/12H02J50/70
CPCH02M3/3353H02M7/797H02M7/483H02M3/1582H02M1/12H02M1/00H02J50/12H02J50/70Y02T90/14Y02T10/70Y02T10/7072
Inventor 蒋成魏辰阳徐翀吴晓康魏斌徐锦星
Owner CHINA ELECTRIC POWER RES INST
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