Sustainable wireless power supply system for high-voltage transmission line on-line monitoring equipment
A technology of high-voltage transmission lines and monitoring equipment, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve problems such as unstable power supply, increased frequency of use of energy storage equipment, restrictions, etc., and achieve the effect of improving low efficiency
Pending Publication Date: 2022-07-15
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology
The existing high-voltage transmission line online monitoring equipment power supply method usually adopts the scheme of new energy plus energy storage equipment for power supply, but the power supply of new energy power generation is limited by external conditions, and the power supply is unstable, which increases the frequency of use of energy storage equipment, which will Reduced service life of energy storage devices
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[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0045] It is to be understood that, when used in this specification and the appended claims, the terms "comprising" and "comprising" indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude one or The presence or addition of a number of other features, integers, steps, operations, elements, components, and / or sets thereof.
[0046] It should also be understood that the termi...
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The invention belongs to the technical field of wireless power supply, and particularly relates to a sustainable wireless power supply system for online monitoring equipment of a high-voltage transmission line, which comprises a CT power taking unit, a power transmitting unit, repeating coils L2-Ln-1, a power receiving unit, an energy storage unit, a controller, a voltage sensor and a current sensor, the CT power taking unit comprises an energy taking coil, a first rectifier and a first DC-DC converter; the power receiving unit comprises a receiving coil and a second rectifier; the controller carries out calculation according to data collected by the voltage sensor and the current sensor and compares the data with a set current threshold value so as to control the energy storage unit to carry out charging and discharging and adjust the duty ratio of the first DC-DC converter. According to the invention, the current threshold of the load running at the optimal efficiency is set, and the charging and discharging states of the energy storage unit are controlled, so that the system always works in an efficient state in the energy transmission process, and the problem of low efficiency in the long-distance wireless power transmission process is effectively improved.
Description
technical field [0001] The invention belongs to the technical field of wireless power supply, and in particular relates to a sustainable wireless power supply system for on-line monitoring equipment of high-voltage transmission lines. Background technique [0002] Wireless Power Transfer (WPT) technology uses energy carriers (such as electric fields, magnetic fields, microwaves, electromagnetic waves, etc.) in space to transfer electrical energy from the power supply side to the load side. Among them, inductive WPT technology, as a safe and reliable non-contact power supply technology, can solve many defects of traditional wired power transmission equipment, avoid contact sparks, leakage and other safety problems existing in traditional plug-in systems, and make human application The way of electricity is more flexible. At present, this technology has been widely used in the wireless charging platform of human implantable medical devices, induction heaters, electric vehicle...
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Login to View More IPC IPC(8): H02J50/12H02J7/00
CPCH02J50/12H02J7/00032H02J7/0068H02J7/0047
Inventor 莫宇鸿肖静吴晓锐吴宁尹立群龚文兰陈绍南韩帅陈卫东卢健斌阮诗雅郭敏郭小璇孙乐平赵立夏
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD