A parameter setting method of lccl-lc wireless power transmission system

A technology of wireless power transmission and parameter setting, which is applied in the direction of circuit devices and electrical components, can solve the problem that the compensation network cannot meet the requirements of stable transmission, and achieve the effect of fast and accurate parameter design, stable and efficient output, and improved transmission efficiency

Active Publication Date: 2021-12-10
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In practical applications, wireless power transmission should have the characteristics of constant voltage, stability, and high efficiency, and the basic type of compensation network cannot meet the needs of stable transmission when the load changes. Therefore, complex high-order compensation networks have become the direction of research, including LCL type, LLCL type and LCCL type, etc.; LCCL type has been proved to be a feasible solution

Method used

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  • A parameter setting method of lccl-lc wireless power transmission system
  • A parameter setting method of lccl-lc wireless power transmission system
  • A parameter setting method of lccl-lc wireless power transmission system

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Embodiment

[0049] The structural diagram of an LCCL-LC wireless power transmission system provided in this embodiment is as follows figure 1 As shown, the circuit structure includes an input filter capacitor, a high-frequency power conversion circuit, an LCCL compensation network, a transmitting coil, a receiving coil, a compensation capacitor, a high-frequency rectification circuit, and a load.

[0050] The mains power is rectified, filtered by the input filter capacitor, and then input into the high-frequency power conversion circuit. The high-frequency power conversion circuit outputs high-frequency alternating current with a certain frequency, which is compensated by the LCCL compensation network to provide high-frequency alternating current for the transmitting coil, and the electric energy is transmitted through electromagnetic induction. To the receiving coil on the secondary side, the receiving coil resonates with the compensation capacitor to improve the transmission power and ef...

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Abstract

The invention discloses a method for setting parameters of an LCCL‑LC wireless power transmission system. The method selects suitable transmitting and receiving coils according to the requirements of transmission power, and calculates the ratio of the inductance by determining the relationship between the inductance of the primary transmitting coil and the resonant inductance Specific value, so as to determine the value of resonant inductance, through the circuit resonance relationship, determine other compensation capacitors. The present invention has the effect of quickly and accurately determining the parameters of the LCCL-LC wireless power system. The LCCL-LC system designed by the method has the advantages of constant voltage output, high transmission efficiency, and stable and efficient work within the full load range; through this method, it can be based on the actual The transmission power needs to quickly design system parameters to meet the needs of engineering applications.

Description

technical field [0001] The invention relates to the field of wireless power transmission, in particular to a parameter setting method of an LCCL-LC wireless power transmission system. Background technique [0002] Magnetically coupled resonant wireless power transfer (MCRWPT) has the advantages of high transmission power level, high transmission efficiency, good safety and strong applicability. It is currently a hot spot in wireless power transmission and has broad application prospects. Since the transmitting coil and the receiving coil of the magnetically coupled resonant wireless power transmission are loosely coupled, the coupling coefficient is small, which seriously affects the efficiency of energy transmission; in order to improve the transmission efficiency, it is particularly important to add a compensation network. [0003] In practical applications, wireless power transmission should have the characteristics of constant voltage, stability, and high efficiency, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12
CPCH02J50/12
Inventor 李志忠张亦弛夏振林
Owner GUANGDONG UNIV OF TECH
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