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Modularized wireless charging system for realizing decoupling of double rows of same-side coils

A technology of wireless charging and double rows on the same side, which is applied in charging stations, electric vehicle charging technology, electric vehicles, etc., can solve the problems of system control difficulty, current influence, and system efficiency reduction, so as to eliminate the influence of mutual inductance and reduce control Difficulty, the effect of improving transmission efficiency

Active Publication Date: 2021-05-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-coil wireless energy transfer technology is conducive to breaking through the limitations of traditional single-channel wireless charging. Due to the mutual inductance between the coils on the same side, the current in the power device on the same side is affected, which will not only reduce the efficiency of the system, but also make the system It is difficult to control, so there is no practical application at present

Method used

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  • Modularized wireless charging system for realizing decoupling of double rows of same-side coils
  • Modularized wireless charging system for realizing decoupling of double rows of same-side coils
  • Modularized wireless charging system for realizing decoupling of double rows of same-side coils

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Embodiment

[0022] Example: A modular wireless charging system that realizes the decoupling of double-row coils on the same side, such as figure 1 As shown, the system includes a plurality of power transmitters 109 to wirelessly transmit power to one or more power receivers 110, and each of the power transmitters 109 includes a driving power supply 101, a transmission compensation network 102 and a transmission coil 103 , the driving power supply 101 outputs a high-frequency alternating current, which is applied to the transmission compensation network 102 and the transmission coil 103, so that the power transmitter 109 generates a high-frequency alternating magnetic field. The transmission compensation network 102 may include capacitors and / or inductors, and commonly used compensation capacitors The form of series compensation with the transmitting coil can offset the reactive power in the power transmitter 109; each of the power receivers 110 includes a receiving coil 104, a receiving co...

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Abstract

The invention discloses a modularized wireless charging system for realizing decoupling of double rows of same-side coils. The modularized wireless charging system comprises more than two power transmitters or power receivers, and is characterized in that each power transmitter comprises a driving power supply, a transmitting compensation network and a transmitting coil, the power receiver comprises a receiving coil, a receiving compensation network and a rectifier, the receiving coils or the transmitting coils are placed in a double-row mode, and each receiving coil and / or transmitting coil is correspondingly connected with one or two multi-winding decouplers, so that mutual inductance influence between the receiving coils or the transmitting coils on the same side is eliminated, and decoupling of the receiving coils and / or the transmitting coils is achieved. According to the invention, the modularized wireless charging system can be used for eliminating the mutual inductance influence between the same-side coils, so that the modularized wireless charging system has important significance in improving the transmission efficiency of the modularized wireless charging system and reducing the control difficulty of the system.

Description

technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to a modularized wireless charging system that realizes the decoupling of double-row same-side coils. Background technique [0002] Due to its safe and convenient features, wireless power transmission technology is widely used in various electrical equipment, such as mobile terminals, medical equipment, and electric vehicles. As a representative of high-power wireless charging applications, electric vehicle wireless charging technology has attracted much attention due to its advantages of high efficiency, convenience, low maintenance cost, and no environmental impact. Although the current low-power wireless charging technology has been developed to a certain extent, high-power wireless fast charging is still under study. The multi-coil wireless energy transfer technology is conducive to breaking through the limitations of traditional single-channel wireless char...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/10H02J50/40B60L53/12
CPCH02J50/10H02J50/40B60L53/12Y02T10/70Y02T10/7072Y02T90/14Y02T10/72
Inventor 钟文兴朱晨徐德鸿
Owner ZHEJIANG UNIV
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