Double-side T-S compensation topology and parameter matching method for wireless electric energy transmission

A technology for wireless power transmission and compensation topology, which is applied to output power conversion devices, electrical components, circuit devices, etc., and can solve problems such as low efficiency, changes in resonant frequency, and unstable transmission power.

Active Publication Date: 2016-11-09
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Although the traditional SS compensation network topology can achieve certain performance, its transmission power is unstable, the outp...

Method used

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  • Double-side T-S compensation topology and parameter matching method for wireless electric energy transmission
  • Double-side T-S compensation topology and parameter matching method for wireless electric energy transmission
  • Double-side T-S compensation topology and parameter matching method for wireless electric energy transmission

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Embodiment Construction

[0051] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0052] Specifically, asfigure 1 As shown, including: primary side circuit and secondary side circuit;

[0053] The primary side loop includes: primary side coil L 1 , L 1 The first terminal and the first compensation capacitor C 1 connected at the second end, L 1 The second terminal of the first T-type capacitor C t1 connected to the first end of the capacitor C t1 The second terminal of the first T-shaped inductor L t1 The second terminal and the second T-shaped inductor L t2 The first end is co...

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Abstract

The invention provides a double-side T-S compensation topology and parameter matching method for wireless electric energy transmission, and the method employs a scheme that the method employs an inverter, a first T-shaped structure, a receiving and transmitting module, a second T-shaped structure and a rectifier, wherein the inverter, the first T-shaped structure, the receiving and transmitting module, the second T-shaped structure and the rectifier are connected sequentially; the inverter is connected to a DC power output end, and is used for inverting a direct current into an alternating current and transmitting the alternating current to the first T-shaped structure; the first T-shaped structure is used for obtaining a stable current and stabilizing the transmission power of a transmitting end; the receiving and transmitting module is used for transmitting the inverted alternating current to the second T-shaped structure in a wireless mode; the second T-shaped structure is used for obtaining a stable current and stabilizing the transmission power of a receiving end; and the rectifier is used for carrying out the rectification processing of the alternating current of the receiving end and outputting a corresponding direct current. The method solves problems of transmission power level and power transmission stability well; achieves the purposes that a current of a primary coil and an output current are stable and do not change with a load; and achieves a purpose that the resonant frequency is independent of the load and the distance of primary and secondary coils through parameter matching.

Description

technical field [0001] The present invention relates to a wireless power transmission system, in particular to a double-sided T-S compensation topology and a parameter matching method for wireless power transmission. Background technique [0002] At present, resonant wireless power transfer systems are widely used in various industrial fields such as electric vehicles, underwater robots, mobile phones, and drones. With the continuous expansion of the application field, the requirements for the power and efficiency of the wireless power transmission system are getting higher and higher, and the structure of the compensation network topology has a great influence on the power and efficiency. Although the traditional SS compensation network topology can achieve certain performance, its transmission power is unstable, the output current is also unstable, and the efficiency is not very high. The resonant frequency is easily changed by the change of distance and load. The introdu...

Claims

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Application Information

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IPC IPC(8): H02M3/335H02J50/12
CPCH02M3/335
Inventor 张希靳伟
Owner SHANGHAI JIAO TONG UNIV
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