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Method for realizing decoupling of double-row equidistant placement multi-emission coils in wireless electric energy transmission system

A wireless power transmission and transmitting coil technology, applied in circuit devices, electrical components, etc., can solve problems such as system control difficulty, system efficiency reduction, and the influence of power transmitter current.

Active Publication Date: 2019-06-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the mutual inductance between the transmitting coils, the current in the power transmitter is affected, which will not only reduce the efficiency of the system, but also make the control of the system more difficult

Method used

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  • Method for realizing decoupling of double-row equidistant placement multi-emission coils in wireless electric energy transmission system
  • Method for realizing decoupling of double-row equidistant placement multi-emission coils in wireless electric energy transmission system
  • Method for realizing decoupling of double-row equidistant placement multi-emission coils in wireless electric energy transmission system

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Embodiment Construction

[0018] The detailed description set forth below in conjunction with the appended drawings is intended as a description of exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced. The term "exemplary" is used throughout this description to mean "serving as an example, instance, or illustration," and should not necessarily be considered preferred or advantageous over other exemplary embodiments. The detailed description contains specific details in order to provide a thorough understanding of the exemplary embodiments of the invention. In some instances, devices are shown in block diagram form.

[0019] figure 1 is a functional structural block diagram of a wireless power transmission system according to all exemplary embodiments of the present invention. The power transmitter 109 includes a driving power source 101 , a compensation network 102 and a transmitting coil 103 . The driving power supply ...

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Abstract

The invention discloses a method for realizing decoupling of double-row equidistant placement multi-emission coils in a wireless electric energy transmission system. The system applicable to the method comprises N emission coils, wherein N is greater than or equal to 4 and N is an even number; all emission coils are sequentially arranged at equal intervals, wherein the mutual coupling in one emission coil unit cannot be ignored; according to the method disclosed by the invention, full decoupling in each emission coil unit can be realized by means of the arrangement of the decoupling element; in addition, the method can be expanded and popularized to the situation that a plurality of double-row emission coils are arranged at equal intervals, the applicability is high, and the method has important significance in improving the system transmission efficiency and reducing the system control difficulty.

Description

technical field [0001] The invention relates to wireless power transmission technology, in particular to a method for realizing the decoupling of double-row equidistantly placed multiple transmitting coils in a wireless power transmission system. Background technique [0002] Due to its safe and convenient features, wireless power transmission technology is widely used in various electrical equipment, such as mobile terminals, medical equipment, and electric vehicles. Because the wireless power transfer system with multiple transmitting coils can not only improve the transmission distance of the wireless power charging system, but also improve the offset capability of the wireless power transfer system, so the system has become a research hotspot in the direction of wireless power transmission in recent years. At present, there are few reports on the decoupling of multiple transmitting coils. In the wireless power transfer system with multiple transmitting coils, especially ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/00H02J50/40
Inventor 钟文兴方赞峰徐德鸿李曼丽
Owner ZHEJIANG UNIV
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