Double-frequency double-load multi-relay MC-WPT system based on shared energy channel
A MC-WPT, energy channel technology, applied in the direction of circuit devices, electrical components, etc., can solve the problems of time-consuming maintenance costs, inconvenient replacement, pollution of the environment, etc., to reduce cross-interference and overcome the influence of unstable weather factors Effect
Active Publication Date: 2021-04-27
CHONGQING UNIV
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Problems solved by technology
Both wind energy and solar energy are unstable and will be affected by weather and geographical factors; while the battery life is short, inconvenient to replace, time-consuming and costly to maintain, and heavy metal elements in the battery will pollute the environment. Therefore, the power supply method of online monitoring equipment The research is getting more and more attention from researchers at home and abroad
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[0038] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.
[0039] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.
[0040] Such as figure 1 , figure 2 As shown, this embodiment provides a dual-frequency dual-load multi-relay MC-WPT system based on shared energy channels, especially applied to high-voltage transmission line online monitoring equipment, in order to realize two different online monitoring equipment from high-voltage transmission Take power directly online. The system proposed in t...
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The invention provides a double-frequency double-load multi-relay MC-WPT system based on a shared energy channel. The system is characterized in that: the system generates a first target frequency signal and a second target frequency signal through a double-frequency inverter, an energy transmitting coil sequentially and transmits the first target frequency signal and the second target frequency signal jointly to energy receiving coils by using at least two relay coils, a first secondary side compensation circuit is used for transmitting the first target frequency signal to a first rectification filter circuit, and a second secondary side compensation circuit is used for transmitting the second target frequency signal to a second rectification filter circuit. The system has the advantages that: the double-frequency inverter is used for energy transmission of the two energy channels, a receiving end compensation network is provided with the two energy transmission channels which restrain each other, cross interference from non-target frequency is effectively reduced, and the system can be applied to simultaneous constant-voltage or constant-current energy supply of the two loads; and the system can effectively meet the online monitoring application demands of a high-voltage power transmission line, and guarantees the electrical isolation between a high-voltage side and a low-voltage side.
Description
technical field [0001] The invention relates to wireless energy transmission technology, in particular to a dual-frequency, dual-load, and multi-relay MC-WPT system based on a shared energy channel. Background technique [0002] Wireless power transmission technology is a technology that comprehensively utilizes power electronics technology and modern control theory and uses carriers such as magnetic fields and electric fields to transfer electrical energy from power sources / batteries to loads in a non-electrical contact manner. It is safe, reliable, flexible, etc. advantage. The technology is widely used in biomedical implants, smartphones, electric vehicles, and more. [0003] On-line monitoring equipment installed on high-voltage transmission lines is one of the important components of smart grid. The monitoring equipment provides early warning of abnormal conditions of the line through real-time monitoring and analysis of parameters such as temperature, humidity, wind ...
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IPC IPC(8): H02J50/50H02J50/10H02J50/12
CPCH02J50/50H02J50/10H02J50/12Y02T10/70
Inventor 苏玉刚侯信宇王智慧戴欣孙跃唐春森
Owner CHONGQING UNIV