Passive sensor energy taking system based on series coil
A passive sensor, series coil technology, applied in the field of electric power, can solve the problems of unstable voltage and low output power, and achieve the effect of reducing complex design, solving low power, and simple multi-module operation.
Pending Publication Date: 2022-07-08
GUANGDONG POWER GRID CO LTD +1
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[0004] The purpose of this application is to provide a passive sensor energy harvesting system based on series coils, which is used to solve the technical problems of low output power and unstable voltage in the prior art
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[0025] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0026] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must ...
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The invention discloses a passive sensor energy taking system based on a series coil. The passive sensor energy taking system comprises the series coil formed by connecting a plurality of energy taking coils in series, a rectifying circuit, a Boost circuit and a control and voltage regulation circuit. The series coil is used for acquiring alternating current and transmitting the alternating current to the rectifying circuit; the rectifying circuit is used for converting alternating current into direct current and transmitting the direct current to the Boost circuit; the Boost circuit is used for boosting the direct current to the voltage required by the passive sensor; and the control and voltage regulation circuit is used for acquiring the voltage of the cable power transmission line, and when the voltage is not in a normal working condition range, the duty ratio of the Boost circuit switch is regulated so as to ensure that the output voltage required by the passive sensor is kept stable. The energy storage circuit is used for storing the electric energy input by the Boost circuit when the voltage of the cable transmission line is higher than the normal working condition voltage, and inputting the electric energy to the Boost circuit when the voltage of the cable transmission line is lower than the normal working condition voltage; the problems of low output power and unstable voltage in the prior art are solved.
Description
technical field [0001] The present application relates to the field of electric power technology, and in particular, to a passive sensor energy acquisition system based on series coils. Background technique [0002] At present, the application of three-core cables in distribution networks is more and more extensive, but the online monitoring technology for cable status is still immature. It is the bottleneck restricting the realization of online monitoring of three-core cables. [0003] The prior art is to use a small CT energy extraction system. This solution has achieved self energy extraction using electromagnetic induction and electrostatic principles in single-core cables and overhead lines, but its application in three-core cables is due to the surrounding area of the surface of the three-core cable. The magnetic field distribution is complicated and restricted, which leads to the low output power of this solution, and it is difficult to ensure a stable output volta...
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IPC IPC(8): H02M7/217H02J50/10
CPCH02M7/217H02J50/10Y02E30/30
Inventor 刘崧欧晓妹刘少辉王俊波李国伟王云飞郭国伟李兰茵梁年柏李雷刘益军唐琪张殷宋安琪张思寒
Owner GUANGDONG POWER GRID CO LTD