Wireless electric energy transmission system with switchable resonance compensation topology and control method thereof

A technology of wireless power transmission and compensation topology, applied in the direction of electrical components, circuit devices, etc., can solve the problems that cannot meet the application occasions, can not be improved, etc., achieve the effect of optimizing power and efficiency, and broadening the application occasions

Inactive Publication Date: 2016-03-23
CHINA UNIV OF MINING & TECH
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  • Abstract
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Problems solved by technology

Therefore, when the power supply characteristics or power efficiency output requirements required by the load are different, the wireless power transmission system with a si

Method used

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  • Wireless electric energy transmission system with switchable resonance compensation topology and control method thereof
  • Wireless electric energy transmission system with switchable resonance compensation topology and control method thereof
  • Wireless electric energy transmission system with switchable resonance compensation topology and control method thereof

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Embodiment Construction

[0028] In order to make the purpose of the present invention, content of the invention and beneficial effect clearer, the present invention will be described in further detail below in conjunction with accompanying drawing:

[0029] see figure 1 , figure 1 Shown is a schematic structural diagram of the system of the present invention. The system of the present invention includes a DC power supply 1, a high-frequency inverter mechanism 2, a primary compensation mechanism 3, an electromagnetic coupling mechanism 4, a secondary switching mechanism 5, a rectification and filtering mechanism 6, a load 7, and a primary Side control mechanism 8 and secondary side control mechanism 9.

[0030] The DC power supply U in It can be obtained by rectifying and filtering the mains, or it can be directly powered by DC voltage.

[0031] The high-frequency inverter mechanism can be selected from half-bridge, full-bridge or push-pull inverter circuits. The present invention uses four power sw...

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Abstract

The invention discloses a wireless electric energy transmission system with a switchable resonance compensation topology and a control method thereof. The system comprises a direct current power supply, a high frequency inversion mechanism, a primary side compensation mechanism, an electromagnetic coupling mechanism, a secondary side switching mechanism, a high frequency rectification mechanism, a load, a primary side control mechanism and a secondary side control mechanism. The system is characterized in that according to a power supply characteristic needed by a load or difference of power efficiency output requirements, through controlling connection and disconnection of a bidirectional switch in the secondary side switching mechanism, topology structure switching is performed; and the system can work in three kinds of working modes which are constant current output, constant voltage output and high power and high efficiency output. The system has advantages that the system can flexibly switch system working modules according to the power supply characteristic needed by load power supply or a power efficiency output requirement so as to satisfy power supply requirements of various types of loads; single resonance compensation topology restrictions are effectively overcome and a system application occasion is widened.

Description

technical field [0001] The invention relates to a novel wireless power transmission system, in particular to a wireless power transmission system with switchable resonance compensation topology and a control method thereof. Background technique [0002] In view of the advantages of safety, convenience, and strong adaptability to the environment, wireless power transmission technology has become a hot research topic in the field of power electronics, and its theoretical system is also constantly developing and improving. Among them, the electromagnetic induction wireless power transmission technology develops the fastest and is the most widely used. It uses high-frequency magnetic field to transmit energy in the magnetic circuit mechanism, so as to realize the physical isolation between the primary side transmitter and the secondary side pickup side. [0003] It can be seen that the magnetic circuit mechanism of the wireless power transfer system is the core of the wireless p...

Claims

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Application Information

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IPC IPC(8): H02J50/12
Inventor 夏晨阳任思源雷轲张杨林克章年长春伍小杰孙彦景
Owner CHINA UNIV OF MINING & TECH
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