Wireless power transmission system for high voltage online monitoring devices and configuration method

A technology of wireless energy transmission and monitoring equipment, applied in the direction of circuit devices, electrical components, etc., can solve the problems of reducing transmission efficiency, splitting working resonance frequency, reducing power transmission efficiency, etc., and achieves reducing cross-coupling effects, high power transmission level, Improve the effect of effective transmission distance

Active Publication Date: 2019-08-06
云南电网有限责任公司丽江供电局
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, it is a challenging problem to distribute power to multiple loads simultaneously using a single power source in wireless power transfer systems due to the cross-coupling between load coils that greatly re

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  • Wireless power transmission system for high voltage online monitoring devices and configuration method
  • Wireless power transmission system for high voltage online monitoring devices and configuration method
  • Wireless power transmission system for high voltage online monitoring devices and configuration method

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] Such as figure 1 As shown, the technical solution adopted by the system for the specific embodiment of the present invention includes: a wireless power transmission system for high-voltage online monitoring equipment, which is characterized in that it includes: an inductive energy harvesting module, an energy storage module, and a power conversion at the transmitting end module, source coil, N embedded relay structures, (N+1) load coils, (N+1) receiver ...

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Abstract

The invention provides a wireless power transmission system for high voltage on-line monitoring devices and a configuration method. The system includes an induction energy acquisition module, an energy storage module, a transmitter power conversion module, a source coil, multiple embedded relay structures, multiple load coils, multiple receiver power conversion modules and multiple high voltage online monitoring devices. The method includes the following steps: measuring the self-inductances of the source coil and relay coils through an LCR measurement method; calculating the mutual inductances and coupling coefficients between the relay coils of the embedded relay structures, calculating the mutual inductances and coupling coefficients between a transmitting coil and the relay coils of the embedded relay structures, and solving the relay coil splitting frequency of the embedded relay structures; calculating the resonant capacitance values matching the relay coils and the resonant capacitance value matching the source coil; and judging whether configuration is completed according to the splitting frequency. The effective transmission distance is improved, and the interference of external environmental factors and the cross-coupling effect between multiple loads are reduced. The system is suitable for dynamic loads.

Description

technical field [0001] The invention belongs to the technical field of wireless power supply, and in particular relates to a wireless power transmission system and configuration method of high-voltage online monitoring equipment. Background technique [0002] Existing wireless power transmission technologies include at least the following five directions: electromagnetic induction, electromagnetic resonance, microwave, ultrasonic and laser. Among them, the principle of the magnetic coupling resonant wireless power transmission technology is the same as the resonance principle of the tuning fork: coils with the same vibration frequency arranged in a magnetic field can also realize energy transfer from one coil to another due to the same vibration frequency characteristics. It is characterized by a long transmission distance and can realize one-to-many energy transmission, but the transmission efficiency is low, and it is suitable for medium-distance transmission with medium p...

Claims

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Application Information

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IPC IPC(8): H02J50/10H02J50/12H02J50/50
CPCH02J50/10H02J50/12H02J50/50
Inventor 刘国波石俊时正雄胡凡君王少华
Owner 云南电网有限责任公司丽江供电局
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