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Three-phase AC-AC converter used for wireless electric energy transmission system and control method of three-phase AC-AC converter

A wireless power transmission and converter technology, applied in output power conversion devices, AC power input conversion to AC power output, high-efficiency power electronic conversion, etc., can solve the problem of increasing system volume and loss, increasing system cost, and reducing primary System efficiency and stability and other issues, to achieve the effect of reducing power loss, reducing volume and weight, and simple structure

Active Publication Date: 2017-12-26
重庆华创智能科技研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these links increase the cost of the system, greatly increase the volume and loss of the system, and reduce the efficiency and stability of the primary system

Method used

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  • Three-phase AC-AC converter used for wireless electric energy transmission system and control method of three-phase AC-AC converter
  • Three-phase AC-AC converter used for wireless electric energy transmission system and control method of three-phase AC-AC converter
  • Three-phase AC-AC converter used for wireless electric energy transmission system and control method of three-phase AC-AC converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Such as figure 1 As shown, a three-phase AC-AC converter for a wireless power transmission system includes six sets of anti-series IGBT switch tubes and an LC series resonant tank, where:

[0041] A-phase power connector: through switch tube group S 1 After that, it is connected to the capacitance terminal of the LC series resonant circuit, and at the same time passes through the switching tube group S 6 Afterwards, it is connected to the inductance end of the LC series resonant circuit;

[0042] Phase b power connector: through the second group of anti-series IGBT switch tube S 2 Afterwards, it is connected to the capacitance end of the LC series resonant circuit, and at the same time passes through the fifth group of anti-series IGBT switch tube S5 Afterwards, it is connected to the inductance end of the LC series resonant circuit;

[0043] c-phase power connector: through the third group of anti-series IGBT switch tube S 3 After that, it is connected to the capac...

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PUM

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Abstract

The invention provides a three-phase AC-AC converter used for a wireless electric energy transmission system and a control method of the three-phase AC-AC converter. The converter includes six reversely serial IGBT switch tubes and one LC series resonance circuit. An a-phase power joint is connected with a capacitance terminal of the LC series resonance circuit through the switch tube S1 and is connected with an inductance terminal of the LC series resonance circuit through a switch tube S6. A b-phase power joint is connected with the capacitance terminal of the LC series resonance circuit through the switch tube S2 and is connected with an inductance terminal of the LC series resonance circuit through a switch tube S5. A c-phase power joint is connected with the capacitance terminal of the LC series resonance circuit through the switch tube S3 and is connected with an inductance terminal of the LC series resonance circuit through a switch tube S4. The invention has effects of simple structure, small size, low weight and high efficiency.

Description

technical field [0001] The invention relates to power control technology, in particular to a three-phase AC-AC converter used in a wireless power transmission system and a control method thereof. Background technique [0002] As a new type of power supply technology, Wireless Power Transmission (WPT) uses high-frequency magnetic fields to construct an energy channel between the power supply side and the load side, and has been popularized in high-power applications such as electric vehicle charging and power supply. In the current technical scheme of high-power wireless power transmission, in order to ensure the stability and reliability of the system, a constant current control scheme is generally adopted on the primary side. At present, more methods are used to rectify the three-phase power supply to obtain DC power, and then use the DC chopper circuit to complete the closed-loop control of the excitation current of the coupling mechanism to achieve the constant current ef...

Claims

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Application Information

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IPC IPC(8): H02M5/297
CPCH02M5/297H02M1/0058Y02B70/10
Inventor 孙跃戴欣吴剑青王智慧唐春森苏玉刚
Owner 重庆华创智能科技研究院有限公司
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