Wireless charging bidirectional energy transmission resonance compensating circuit and method

A technology of energy transmission and wireless charging, which is applied in reactive power compensation, battery circuit devices, reactive power adjustment/elimination/compensation, etc., can solve problems such as resonance frequency deviation and efficiency drop, and achieve efficiency drop, cost saving, Ease of mass production

Inactive Publication Date: 2017-04-26
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a resonance compensation method and circuit for wireless charging two-way energy transmission, which can solve the problem of efficiency drop caused by the deviation of the resonance frequency of the primary and secondary sides, and the circuit of the present invention has a compact structure

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  • Wireless charging bidirectional energy transmission resonance compensating circuit and method
  • Wireless charging bidirectional energy transmission resonance compensating circuit and method

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Embodiment Construction

[0028] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0029] The invention provides a resonance compensation method for wireless charging bidirectional energy transmission and its corresponding hardware circuit. The hardware circuit includes a battery on the primary and secondary sides, a full bridge circuit, a compensation network and a coupling coil. The bidirectional resonance compensation method includes transmission from the primary side to the secondary side. Reactive power compensation for energy and reactive power compensation for transferring energy from the secondary side to the primary side, where:

[0030] The hardware circuit includes the primary side pow...

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Abstract

The invention provides a wireless charging bidirectional energy transmission resonance compensating circuit and method. The method comprises steps that reactive compensation during energy transmission from a primary side to a secondary side and reactive compensation during energy transmission from the secondary side to the primary side are comprised; the circuit comprises a cell at the primary side, a full bridge circuit, a compensation network and a coupling coil. The method is advantaged in that the method is applicable to bidirectional energy flow between a wireless charging electric automobile and a power grid, the electric automobile can be taken as an energy adjusting device for power grid peak shaving and valley filling, a problem of efficiency decrease caused by resonant frequency deviation of the primary side and the secondary side can be solved, and the circuit has a compact and simple structure.

Description

technical field [0001] The invention relates to a reactive power compensation method, in particular to a resonant compensation circuit and method for wireless charging bidirectional energy transmission. Background technique [0002] With the development of society, consumer electronic products are increasing exponentially, and more and more devices are used in daily life. Therefore, the charging of these electronic products has become a very important issue. Traditional wired connections are inconvenient, and people are increasingly eager to get rid of the shackles of charging cables. As a result, wireless charging technology has entered the world of people, and because of its considerable novelty and convenience, it has received a lot of attention. At present, many products have been applied, such as Samsung's wireless charging mobile phone, BMW's wireless charging car etc. [0003] Wireless charging technology is developing rapidly, but there are still some problems to b...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02J7/00H02J50/12
CPCY02E40/30H02J3/18H02J5/005H02J7/00
Inventor 刘晨蕾王佳丽
Owner WUHAN UNIV
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