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Circuit parameter optimization method based on series compensation topology ipt system

A technology of series compensation and optimization method, applied in circuit devices, electrical components, etc., can solve the problems of output voltage deviating from rated value, affecting system availability, and change of coupling coil mutual inductance, etc., to achieve the effect of improving stability

Active Publication Date: 2021-05-28
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the offset of the coupling mechanism of the current inductive power transmission IPT system causes the mutual inductance of the coupling coil to change, resulting in the deviation of the output voltage from the rated value, which affects the availability of the system, and the existing methods are all at the cost of adding coils or components. To solve the problem of improving the anti-offset capability of the system, the present invention proposes a circuit parameter optimization method based on the series compensation topology IPT system without adding components, so as to improve the stability of the voltage gain of the system under load changes and coupling mechanism offsets sex

Method used

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  • Circuit parameter optimization method based on series compensation topology ipt system
  • Circuit parameter optimization method based on series compensation topology ipt system
  • Circuit parameter optimization method based on series compensation topology ipt system

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Embodiment 1

[0116] An IPT system based on the circuit parameter optimization method of series compensation topology IPT, the circuit diagram is as follows figure 1 As shown in , the square coil is selected as the primary and secondary power transfer coils of the series topology IPT system, and strip magnetic cores are laid on both the primary and secondary sides, as shown in figure 2 As shown, after measuring the mutual inductance variation range of the coil within 40% of the horizontal offset along the side length direction, set X 0 =24.2, at the same time set the optimization conditions such as image 3 As shown in the table, a set of α and β can be randomly selected in the value range of α and β to draw the change curve of voltage gain and mutual inductance coefficient as follows: Figure 4 As shown, the schematic diagram of calculating the corresponding mutual inductance coefficient interval in this case is as follows Figure 5 shown. Use the above method to obtain the optimal par...

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Abstract

The invention discloses a circuit parameter optimization method based on a series compensation topology IPT system. The system parameter optimization method is: deriving the voltage gain expression of the series compensation topology IPT system, and analyzing the voltage gain of the system under different parameter configurations with the coupling coil The change characteristics of the mutual inductance; the basic parameters of the IPT system are measured and the system parameter optimization conditions are set; according to the system voltage gain expression and the measured basic parameters and the set system parameter optimization conditions, the parameter optimization method of the enumeration method is adopted , to obtain the optimal parameter configuration of the primary and secondary circuits of the system. The invention improves the stability of the voltage gain of the system under the condition of load change and coupling mechanism offset, and solves the problem that the offset of the coupling mechanism of the current IPT system causes the mutual inductance of the coupling coil to change, which causes the output voltage to deviate from the rated value and affects the availability of the system.

Description

technical field [0001] The invention belongs to the field of inductive power transmission systems, and in particular relates to a circuit parameter optimization method based on a series compensation topology IPT system. Background technique [0002] Inductive power transfer (IPT) transmits electrical energy through air as a medium without relying on any physical contact. It has the advantages of safety, convenience, and beauty. It has been widely used in electronic product charging, lighting, material processing, and electric vehicles. areas such as charging. [0003] In the inductive power transfer system, the precise alignment of the primary coil and the secondary coil in the coupling mechanism is a necessary condition to ensure stable and efficient power transmission. However, in IPT applications, coupling mechanism offset is unavoidable. The coupling coefficient between the primary and secondary coils changes with the offset of the coupling mechanism, resulting in a de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/10
CPCH02J50/10
Inventor 麦瑞坤任洁岳鹏飞刘野然何正友
Owner SOUTHWEST JIAOTONG UNIV
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