CN103219806A - Wireless power transmission system applied to power supplying of high voltage line device - Google Patents

Wireless power transmission system applied to power supplying of high voltage line device Download PDF

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Publication number
CN103219806A
CN103219806A CN2013101349462A CN201310134946A CN103219806A CN 103219806 A CN103219806 A CN 103219806A CN 2013101349462 A CN2013101349462 A CN 2013101349462A CN 201310134946 A CN201310134946 A CN 201310134946A CN 103219806 A CN103219806 A CN 103219806A
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CN
China
Prior art keywords
power
voltage
energy
stabilizing
rectifying
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CN2013101349462A
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Chinese (zh)
Inventor
蒋勇亮
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苏州源辉电气有限公司
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Priority to CN2013101349462A priority Critical patent/CN103219806A/en
Publication of CN103219806A publication Critical patent/CN103219806A/en

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Abstract

The invention discloses a wireless power transmission system applied to power supplying of a high voltage line device. The system is directly connected with a high voltage power transmission circuit through a large power sensing power taking device, power is directly connected with alternated current power by utilizing a mutual inductance principle, and then the alternated current power is rectified and stabilized through a large power multi-way output rectifying stabilizing device to provide direct current standing bias voltage for a separately excited high frequency power supply; and the separately excited high frequency power supply is connected with a wireless power transmission energy emitter, high frequency power is transmitted to the wireless power transmission energy receiving device and a small power rectifying stabilizing matching device on the basis of a magnetic coupling resonance technology, and finally the power is supplied to the high voltage line device. The system supplies the power to an on-line monitoring device in a wireless transmission mode, and meanwhile the system is light in weight and small in size, can be directly hung on a high voltage aerial transmission wire, and achieves long-distance, high-reliability and high stability power supplying.

Description

A kind of radio energy transmission system that is applied to the high-tension line power devices
Technical field
The present invention relates to a kind of radio energy transmission system that is applied to the high-tension line power devices, belong to the wireless power transmission technical field.
Background technology
In recent years, along with the develop rapidly of power industry, electric power system develops towards high voltage, jumbo direction, guarantees that the stable operation of electric power system is more and more important.In case the generation power outage will bring serious consequence.
Generation for the prevention catastrophic failure in time reflects power equipment running state, and power equipment is carried out status monitoring and failure diagnosis just seems very necessary.The on-line monitoring equipment that power transmission and transformation line carries is more and more, and coverage rate is more and more wider, makes equipment more and more higher to the requirement of open-air power supply.How to solve the powerup issue of outdoor aerial power transmission and transformation line on-line monitoring equipment, become the key factor of restriction on-line monitoring technique development.
It is solar powered using maximum supply power modes at present, but this mode is subjected to weather influence bigger, and lacks long-term non-maintaining ability.The laser energy supply has obtained application on electronic current transducer and active type optical current mutual inductor, but this type of power supply also is not suitable for working in the open air.
Summary of the invention
Technical problem to be solved by this invention is at the deficiency in the background technology, a kind of radio energy transmission system that is applied to the high-tension line power devices is provided, this system weight is light, volume is little, can directly hang on the high voltage overhead transmission pressure, realize long distance, highly reliable, high stable power supply.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of radio energy transmission system that is applied to the high-tension line power devices, it comprises high-power induction electricity getting device, high-power multi-path output rectifying and voltage-stabilizing device, the independent-excited high frequency electric source, the wireless power transmission energy emitter, wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment, high-power induction electricity getting device is responded to alternating voltage from high-voltage side bus or circuit, the alternating current of induction is transported to high-power multi-path output rectifying and voltage-stabilizing device, the AC energy rectification that high-power multi-path output rectifying and voltage-stabilizing device will be responded to gained is a direct current, and conversion output plurality of voltages provides direct current bigoted voltage for respectively the independent-excited high frequency electric source, independent-excited high frequency electric source output links to each other with the wireless power transmission energy emitter, the wireless power transmission energy emitter produces the non-radiative formula electromagnetic energy of hard intensity high frequency field, wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment receive above-mentioned electromagnetic energy field, and adjusting makes it reach resonance condition by supplying with on-line monitoring equipment behind the small-power rectifying and voltage-stabilizing coalignment rectifying and voltage-stabilizing.
The AC energy rectification that described high-power multi-path output rectifying and voltage-stabilizing device adopts the uncontrollable rectification circuit of full-bridge will respond to gained is a direct current, and provides direct current bigoted voltage for respectively the independent-excited high frequency electric source by DC/DC transducer output plurality of voltages.
Described independent-excited high frequency electric source is the progressive power amplification module, and it comprises milliwatt step generator, watt level power amplifier module and hectowatt grade power amplifier module three-stage amplifier.
Described milliwatt step generator adopts quartz oscillator as stable frequency signal source, after connect power amplifier chip and impedance matching network output milliwatt level power, operating state is amplified in the Class A, connects a second degree matches network and links to each other with second level power amplifier module; Wherein second level power amplifier module adopts small-power field effect transistor single tube to amplify output, link to each other with third level power amplifier module by two or three inter-stage matching networks, wherein third level power amplifier module adopts that high-power FET is two-tube recommends output, link to each other with the wireless power transmission energy emitter then, produce the non-radiative formula electromagnetic energy of hard intensity high frequency field.
Described wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment comprise energy receiving system and small-power rectifying and voltage-stabilizing coalignment, described energy receiving system comprises energy receiving coil, resonance frequency building-out capacitor and energy coupling coil, described energy receiving coil receives the energy of wireless power transmission energy emitter transmission, by regulating the resonance frequency building-out capacitor, make system reach resonance condition, again by supplying with on-line monitoring equipment behind the small-power rectifying and voltage-stabilizing coalignment rectifying and voltage-stabilizing by the energy coupling coil.
Invention and following 3 points of the maximum difference of existing high pressure online detection instrument electric power system:
(1) the present invention directly extracts electric energy from overhead power transmission conducting wire, and comes to the high-tension line power devices with wireless transmission method.
(2) energy radiating portion of the present invention adopts the independent-excited high frequency electric source, can be by changing the resonance frequency that quartz crystal oscillator changes system, and equipment volume is little, in light weight simultaneously can directly hang on the high-tension line.
(3) bias voltage that leaves standstill of amplifying circuit step by step of the present invention is by high-power energy taking device and through obtaining behind the multichannel output rectifying and voltage-stabilizing device.
The advantage of electric power system of the present invention is:
(1) directly extracts electric energy, be transferred to the high-tension line power devices by wireless transmission method then, be fit to long-time open-air power supply, owing to do not add wire harness, system stability is operated under the high-tension line safely simultaneously from overhead power transmission conducting wire.Can satisfy the requirement that on-line monitoring equipment runs without interruption for a long time, supply power voltage is reliable and stable simultaneously, installs simple and convenient.
(2) adopt the independent-excited high frequency electric source, can be by changing the resonance frequency that quartz crystal oscillator changes system, system and device is in light weight in addition, volume is little, and can directly hang on the high voltage overhead transmission pressure, and convenience directly is installed under the high-tension line and grows the distance power supply.
(3) wireless transmission method adopts the resonance coupled modes, can realize the power supply that middle distance 1m is above, and system influenced by amblent air temperature very little, still can operate as normal in wind and rain heavy snow weather, be fit to open-air long-time, long distance power supply.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a high-power multi-path output rectifying and voltage-stabilizing device schematic diagram of the present invention.
Fig. 3 is an independent-excited high frequency electric source structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention's radio energy transmission system of being applied to the high-tension line power devices comprises high-power induction electricity getting device 1, high-power multi-path output rectifying and voltage-stabilizing device 2, independent-excited high frequency electric source 3, wireless power transmission energy emitter 4, wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment 5.Described high-power induction electricity getting device 1 directly links to each other with the high voltage power transmission circuit, utilizes the direct AC energy of mutual inductance principle, then by providing direct current to leave standstill bias voltage for independent-excited high frequency electric source 3 after high-power multi-path output rectifying and voltage-stabilizing device 2 rectifying and voltage-stabilizings; Described independent-excited high frequency electric source 3 links to each other with wireless power transmission energy emitter 4, based on the magnetic coupling harmonic technology high-frequency electrical energy is transferred to wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment 5, finally is embodied as the high-tension line power devices.
One end of high-power induction electricity getting device 1 utilizes the mutual inductance principle for getting energy coil 103, responds to alternating voltage from high-voltage side bus or circuit 101.
As shown in Figure 2, described high-power multi-path output rectifying and voltage-stabilizing device adopts the uncontrollable rectification circuit 21 of full-bridge, with the AC energy rectification of induction gained is direct current, and provides direct current bigoted voltage for respectively the independent-excited high frequency electric source by DC/DC transducer 22 output plurality of voltages (different brackets).
As shown in Figure 3, described independent-excited high frequency electric source is a progressive power amplification module, comprises milliwatt step generator 31, watt level power amplifier module 32 and hectowatt grade power amplifier module 33 three-stage amplifier altogether.
Wherein the milliwatt step generator adopts quartz oscillator as stable frequency signal source, after connect power amplifier chip and impedance matching network output milliwatt level power, operating state is amplified in the Class A, connects a second degree matches network and links to each other with second level power amplifier module.
Wherein second level power amplifier module (i.e. watt level power amplifier module 32) adopts small-power field effect transistor single tube to amplify output, links to each other with third level power amplifier module by two or three inter-stage matching networks.
Wherein third level power amplifier module (being hectowatt grade power amplifier module 33) adopts that high-power FET is two-tube recommends output, links to each other the non-radiative formula electromagnetic energy of generation hard intensity high frequency field then with the wireless power transmission energy emitter.
Described wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment are made of energy receiving system 51 and small-power rectifying and voltage-stabilizing coalignment 52.Described energy receiving system 51 comprises energy receiving coil 511, resonance frequency building-out capacitor 512 and energy coupling coil 513, by regulating resonance frequency building-out capacitor 512, make system reach resonance condition by energy coupling coil 513 with supply with on-line monitoring equipment after small-power rectifying and voltage-stabilizing coalignment rectifying and voltage-stabilizing becomes the required voltage of on-line monitoring equipment.
The foregoing description does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.

Claims (5)

1. radio energy transmission system that is applied to the high-tension line power devices, it is characterized in that comprising high-power induction electricity getting device (1), high-power multi-path output rectifying and voltage-stabilizing device (2), independent-excited high frequency electric source (3), wireless power transmission energy emitter (4), wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment (5), high-power induction electricity getting device (1) is from high-voltage side bus or circuit (101) induction alternating voltage, the alternating current of induction is transported to high-power multi-path output rectifying and voltage-stabilizing device (2), the AC energy rectification that high-power multi-path output rectifying and voltage-stabilizing device (2) will be responded to gained is a direct current, and conversion output plurality of voltages provides direct current bigoted voltage for respectively independent-excited high frequency electric source (3), independent-excited high frequency electric source (3) output links to each other with wireless power transmission energy emitter (4), wireless power transmission energy emitter (4) produces the non-radiative formula electromagnetic energy of hard intensity high frequency field, wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment (5) receive above-mentioned electromagnetic energy field, and adjusting makes it reach resonance condition by supplying with on-line monitoring equipment (52) behind small-power rectifying and voltage-stabilizing coalignment (5) rectifying and voltage-stabilizing.
2. a kind of radio energy transmission system that is applied to the high-tension line power devices according to claim 1, it is characterized in that: the AC energy rectification that described high-power multi-path output rectifying and voltage-stabilizing device (2) adopts the uncontrollable rectification circuit of full-bridge (21) will respond to gained is a direct current, and provides direct current bigoted voltage for respectively the independent-excited high frequency electric source by DC/DC transducer (22) output plurality of voltages.
3. a kind of radio energy transmission system that is applied to the high-tension line power devices according to claim 1, it is characterized in that: described independent-excited high frequency electric source (3) is the progressive power amplification module, and it comprises milliwatt step generator (31), watt level power amplifier module (32) and hectowatt grade power amplifier module (33) three-stage amplifier.
4. a kind of radio energy transmission system that is applied to the high-tension line power devices according to claim 1, it is characterized in that: described milliwatt step generator (31) adopts quartz oscillator as stable frequency signal source, after connect power amplifier chip and impedance matching network output milliwatt level power, operating state is amplified in the Class A, connects a second degree matches network and links to each other with second level power amplifier module; Wherein second level power amplifier module adopts small-power field effect transistor single tube to amplify output, link to each other with third level power amplifier module by two or three inter-stage matching networks, wherein third level power amplifier module adopts that high-power FET is two-tube recommends output, link to each other with wireless power transmission energy emitter (4) then, produce the non-radiative formula electromagnetic energy of hard intensity high frequency field.
5. a kind of radio energy transmission system that is applied to the high-tension line power devices according to claim 1, it is characterized in that: described wireless power transmission energy receiver and small-power rectifying and voltage-stabilizing coalignment (5) comprise energy receiving system (52) and small-power rectifying and voltage-stabilizing coalignment (52), described energy receiving system (51) comprises energy receiving coil (511), resonance frequency building-out capacitor (512) and energy coupling coil (513), described energy receiving coil (511) receives the energy of wireless power transmission energy emitter (4) transmission, by regulating resonance frequency building-out capacitor (512), make system reach resonance condition, again by supplying with on-line monitoring equipment (53) behind small-power rectifying and voltage-stabilizing coalignment (52) rectifying and voltage-stabilizing by energy coupling coil (513).
CN2013101349462A 2013-04-18 2013-04-18 Wireless power transmission system applied to power supplying of high voltage line device CN103219806A (en)

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Cited By (8)

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CN104079080A (en) * 2014-07-17 2014-10-01 江苏博信通科技有限公司 Power supply device of high-voltage line equipment
CN104283294A (en) * 2014-09-29 2015-01-14 天津长城精益汽车零部件有限公司 Wireless charging system for automobile
CN106208421A (en) * 2016-09-27 2016-12-07 广东电网有限责任公司电力科学研究院 A kind of wireless power supply and utilize the method that this device carries out wireless power
CN106443250A (en) * 2016-09-19 2017-02-22 武汉大学 Electrostatic resistance testing method of high-voltage wireless power supply system
CN106602745A (en) * 2017-01-18 2017-04-26 广东电网有限责任公司电力科学研究院 Wireless power supply method and device for high-voltage on-line monitoring equipment
US20170140870A1 (en) * 2015-11-18 2017-05-18 The University Of Hong Kong Wireless Power Transfer System
CN109119924A (en) * 2018-09-10 2019-01-01 华翔翔能电气股份有限公司 Wireless power transmission substation, electrical power transmission system and wireless power transmission method
US10923957B2 (en) 2015-11-18 2021-02-16 The University Of Hong Kong Wireless power transfer system

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CN202772678U (en) * 2012-08-23 2013-03-06 华南理工大学 On-line monitoring equipment power supply system based on wireless power transmission technology
CN203205991U (en) * 2013-04-18 2013-09-18 苏州源辉电气有限公司 Wireless power transmission system applied to high-voltage line equipment power supply

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EP2372870A1 (en) * 2008-12-01 2011-10-05 Kabushiki Kaisha Toyota Jidoshokki Non-contact power transmission apparatus and design method
CN101594127A (en) * 2009-06-19 2009-12-02 常州瑞思杰尔电子科技有限公司 Full solid-sate radio frequency power supply
CN102638114A (en) * 2012-04-24 2012-08-15 深圳市深泰明科技有限公司 Power supply device of current transformer
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CN203205991U (en) * 2013-04-18 2013-09-18 苏州源辉电气有限公司 Wireless power transmission system applied to high-voltage line equipment power supply

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104079080A (en) * 2014-07-17 2014-10-01 江苏博信通科技有限公司 Power supply device of high-voltage line equipment
CN104283294A (en) * 2014-09-29 2015-01-14 天津长城精益汽车零部件有限公司 Wireless charging system for automobile
US10573455B2 (en) * 2015-11-18 2020-02-25 The University Of Hong Kong Wireless power transfer system
US10923957B2 (en) 2015-11-18 2021-02-16 The University Of Hong Kong Wireless power transfer system
US20170140870A1 (en) * 2015-11-18 2017-05-18 The University Of Hong Kong Wireless Power Transfer System
CN106443250A (en) * 2016-09-19 2017-02-22 武汉大学 Electrostatic resistance testing method of high-voltage wireless power supply system
CN106208421A (en) * 2016-09-27 2016-12-07 广东电网有限责任公司电力科学研究院 A kind of wireless power supply and utilize the method that this device carries out wireless power
CN106602745A (en) * 2017-01-18 2017-04-26 广东电网有限责任公司电力科学研究院 Wireless power supply method and device for high-voltage on-line monitoring equipment
CN106602745B (en) * 2017-01-18 2019-06-28 广东电网有限责任公司电力科学研究院 A kind of high pressure on-line monitoring equipment wireless power method and device
CN109119924A (en) * 2018-09-10 2019-01-01 华翔翔能电气股份有限公司 Wireless power transmission substation, electrical power transmission system and wireless power transmission method

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