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Method and device for determining the number of power receiving terminals in a wireless power transmission system

A technology of wireless power transmission and power reception, applied in the field of energy transmission, can solve the problems of unable to balance the energy transmission efficiency of the system, the output power of the power receiving end, the output power is small, etc.

Active Publication Date: 2020-08-07
BEIJING UNIV OF POSTS & TELECOMM
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  • Claims
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Problems solved by technology

[0003] The inventors found that when the number of power receiving ends in the wireless power transmission system is larger, the energy transmission efficiency of the system is higher, but the energy (ie output power) received by each power receiving end is smaller
At present, when designing a wireless power transmission system, the number of power receiving ends is often set arbitrarily. This design method cannot balance the energy transmission efficiency of the system and the output power of each power receiving end.

Method used

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  • Method and device for determining the number of power receiving terminals in a wireless power transmission system
  • Method and device for determining the number of power receiving terminals in a wireless power transmission system
  • Method and device for determining the number of power receiving terminals in a wireless power transmission system

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Embodiment Construction

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] In order to solve the problems existing in the prior art, embodiments of the present invention provide a method, device, electronic device and computer-readable storage medium for determining the number of power receiving ends in a wireless power transmission system.

[0063] The method for determining the number of power receiving ends in a wireless power transmission system provided by an embodiment of the present invention will firstly be described be...

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Abstract

The present invention provides a method and a device capable of determining number of power receiving terminal(s) in a wireless power transmission system. The method comprises the following steps: determining power sending terminal(s) and the power receiving terminal(s) to be adopted in the target wireless power transmission system to be designed; determining a circuit model corresponding to the target wireless power transmission system based on the power sending terminal(s) and the power receiving terminal(s); calculating the coupling coefficient(s) of the power sending terminal(s) with eachpower receiving terminal in the circuit model, and calculating the loaded quality factor(s) of the power sending terminal(s) and each power receiving terminal; and calculating the value of N based onthe calculated coupling coefficient(s), the calculated loaded quality factor(s) and a preset first sending terminal number calculation formula. By using the method, the number of the power receiving terminal(s) in the wireless power transmission system is determined, and the power transmission performance of the wireless power transmission system is improved.

Description

technical field [0001] The invention relates to the technical field of energy transmission, in particular to a method and a device for determining the number of power receiving ends in a wireless power transmission system. Background technique [0002] A wireless power transfer (WPT) system usually includes a power transmitter and multiple power receivers. The power sending end can simultaneously transmit power to the power receiving end in the system through a non-wire and non-contact method, making power transmission more flexible and safer. [0003] The inventors found that when the number of power receiving terminals in the wireless power transmission system is larger, the energy transmission efficiency of the system is higher, but the energy (ie output power) received by each power receiving terminal is smaller. At present, when designing a wireless power transmission system, the number of power receiving terminals is often set arbitrarily. This design method cannot ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/40
CPCH02J50/40
Inventor 李莉黄禹铭林鸿高
Owner BEIJING UNIV OF POSTS & TELECOMM
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