CN101867231A - High-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line - Google Patents
High-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line Download PDFInfo
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- CN101867231A CN101867231A CN201010210838A CN201010210838A CN101867231A CN 101867231 A CN101867231 A CN 101867231A CN 201010210838 A CN201010210838 A CN 201010210838A CN 201010210838 A CN201010210838 A CN 201010210838A CN 101867231 A CN101867231 A CN 101867231A
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Abstract
The invention relates to a high-voltage side mutual inductance energy-acquiring device of a high-voltage power transmission line, comprising an energy-acquiring unit, an impact protective circuit, a filtering and rectifying circuit, a control unit circuit, a charging management circuit and a voltage-stabilizing circuit. By adopting a feedthrough strip coil with a certain turn number, enough energy can be acquired under the condition of low current, and the conversion and the balance of energy can be realized through a high-speed control unit consisting of a comparator, an MOS (Metal Oxide Semiconductor) tube and a high-power resistor under the condition of heavy current, thereby providing a safe, stable and high-precision direct current power supply for power transmission line motoring under the condition of power transmission current in a wide range.
Description
Technical field
The present invention relates to transformer station and electric line on-line monitoring field, relate in particular to a kind of transformer station and electric line status monitoring side mutual inductance energy-acquiring device of high-voltage.
Background technology
When carrying out on-line monitoring for the state of transformer station, electric line, the power supply supply problem of high-pressure side electronic equipment becomes a big obstacle that hinders this technical development.Using more high-pressure side supply power mode at present mainly comprises: powered battery, capacitance partial pressure power taking and laser power taking, and solar powered etc.For powered battery, simple but distinct disadvantage be exactly that long use will be changed battery; And for solar powered, because present heliotechnics awaits further to improve its conversion efficiency, particularly at long rainy weather, its flying power can not get ensureing; Also exist some deficiency for methods such as laser power taking, capacitance partial pressure power takings.For example external ABB AB and the domestic product that has occurred all adopt and swash the light delivery scheme, and the shortcoming that exists in this type of scheme implementation is: the life cycle of lasing light emitter is short, only 8000～10000 hours; Costing an arm and a leg of lasing light emitter; The on-site maintenance difficulty is big or the like.
Present application and analysis result show that the power supply of line current induction energy fetching is the most promising a kind of supply power mode.The energy of line current induction energy fetching power supply is from high-tension line, and getting can be to finish by a magnet ring that is wound with coil and is set in high-tension line.At present, the problem that this supply power mode is needed solution badly comprises: 1) under the wide region situation of change of line current, provide stable output; 2) long-term low hear rate stable operation.The Chinese patent 200810212134.4 " high voltage induction energy fetching power supply and obtain the method for power supply from high-voltage line " to power, adopt the mode of compensating unit to solve the problems referred to above, second electromotive force that is different from first electromotive force from the high-voltage line induction, and by the reverse part that compensates first electromotive force of second electromotive force, so that it is the voltage of final output is steady, lower but the shortcoming of this method is the precision and the accuracy of the DC power supply that obtains.
Summary of the invention
The objective of the invention is to overcome the defective that prior art exists, a kind of device of getting energy from the mutual inductance of transmission line high-pressure side is provided, introduced control unit circuit, utilize the dividing potential drop of resistance to concern the grade that influences ultra-high-tension power transmission line, adopt metal-oxide-semiconductor to improve precision and accuracy, make this device under very wide transmission current condition, the DC power supply of safety, stable, high accuracy, high accuracy is provided for the transmission line monitoring equipment.
Technical scheme of the present invention is: high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line, and it comprises: get energy unit, surge protection circuit, filter rectifier, charge management circuit and voltage stabilizing circuit; It is characterized in that: also comprise control unit circuit, get the energy unit and comprise iron core and get the energy coil that ultra-high-tension power transmission line passes iron core, be wrapped with at iron core and get the energy coil; Getting can the unit, surge protection circuit, filter rectifier, control unit circuit connect successively; Divide two-way parallel by diode again, lead up to charge management circuit, another road finally provides stable power output for load by voltage stabilizing circuit.
Aforesaid high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line, it is characterized in that: control unit circuit is connected and composed successively by reference voltage circuit, hysteresis comparison circuit, metal-oxide-semiconductor, high-power resistance, this circuit carries out the conversion and the balance of energy under the situation of big electric current, and then under wide range transmission current condition, for the transmission line monitoring equipment provides safety, stable, high-precision DC power supply.
Aforesaid high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line; it is characterized in that: the surge protection circuit is made of two-way gas discharge tube, two-way Transient Suppression Diode, piezo-resistance; be connected in parallel on the two ends of the output of getting the energy coil, be mainly used to protect the reliability of subsequent conditioning circuit.
Aforesaid high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line, it is characterized in that: charge management circuit is made of DC/DC step-down modular converter, lithium cell charging administration module, the DC/DC boost module of wide input range, DC/DC step-down modular converter is connected with the lithium cell charging administration module respectively with the DC/DC boost module, and this circuit can provide sufficient energy to lithium battery.
Aforesaid high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line, it is characterized in that: iron core is to adopt the air gap that has about 1mm, and fill out the respective thickness insulating material between air gap, reach the delay iron core and reach magnetically saturated state, thereby can weaken the generation of spike.
The present invention adopts the punching band gap coil of certain number of turn, under the situation of little electric current, obtain enough energy, under the situation of big electric current, carry out the conversion and the balance of energy by the High-speed Control unit of forming by comparator, metal-oxide-semiconductor, high-power resistance, and then under wide range transmission current condition, provide the DC power supply of safety, stable, high accuracy, high accuracy for the transmission line monitoring equipment.
Description of drawings
Fig. 1 embodiment of the invention general principles block diagram.
Fig. 2 embodiment of the invention is got the circuit diagram of energy, protection, filter unit.
The circuit theory diagrams of Fig. 3 embodiment of the invention control unit circuit.
The circuit theory diagrams of Fig. 4 embodiment of the invention voltage stabilizing circuit.
The circuit theory diagrams of Fig. 5 embodiment of the invention charge management circuit.
Fig. 6 embodiment of the invention booster circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in more detail.
Of the present invention can the unit by getting (mainly being to have the iron core (U type or O type) and the coil of band air gap to form), surge protection circuit, filter rectifier, control unit circuit, voltage stabilizing circuit, charge management circuit and load form.It mainly is the rapport that will handle control, voltage stabilizing, lithium cell charging management circuit well that its concrete circuit connects.
Preposition part of the present invention on ultra-high-tension power transmission line, makes (i.e. the coil of Zu Chenging) iron core sleeve of being wound with enamelled wire to obtain induced electromotive force at the two ends of coil.Onlinely iris out a line two ends two-way gas discharge tube simultaneously in parallel, two-way transient state suppressing diode (TVS) D and surge protection circuit that adjustable piezo-resistance R forms this device is protected the reliability of subsequent conditioning circuit.The back is a filter rectifier, (MBR20100CT that we adopt) forms full-wave rectification by four Schottky diodes, come filtering by C1, C2 then, the next voltage VCC of output is the power supply of scope than broad like this, and we will handle by follow-up circuit.
One of core of the present invention is a control unit circuit, employing be to realize closed-loop control with metal-oxide-semiconductor Q1, voltage comparator LM393 and high-power resistance R7.That voltage comparator is used is common LM393, and the power supply of this chip is that the VCC5.0 that is provided by Fig. 4 or Fig. 6 supplies with; One of them input stage is provided by the reference voltage that TL431 forms, resistance R 2, R3 constitute the dividing potential drop relation and are provided to another input of comparator, its proportionate relationship will have influence on the grade that this device is used ultra-high-tension power transmission line, and R4, R5 are the sizes of the sluggish window voltage relatively of influence.Come a minute two-way to offer subsequent conditioning circuit by two diodes (D1, D2) at last, wherein be connected with follow-up Fig. 4 circuit, and be connected with follow-up Fig. 5 circuit by D2 by the D1 pipe.
Voltage stabilizing circuit of the present invention, that is be the DC/DC translation circuit.The conversion chip (as LM2576-5.0) of wide input range will be adopted, adjust final output voltage by R1, R2, wherein R3 end connects is that SHDN among Fig. 6 brings in and realizes that mutual inductance is got and can power and the lithium battery seamless switching of power supply separately, and the power supply of getting energy by D1 Schottky diode realization mutual inductance is exported at last.
The present invention realizes the lithium cell charging management circuit, earlier realize that with the conversion chip (LM2576-12) of a DC/DC output voltage of 12V offers its lithium cell charging managing chip (LTC4002-4.2) subsequently, characteristic at lithium battery, the charged in parallel (voltage is 4.2V) of the binodal lithium battery that we adopt, make its effect better, by enough energy are provided.
Booster circuit part of the present invention, because lithium battery provides off-gauge power supply, to realize the power supply of its 5V or 12V by the chip of DC/DC conversion, Li-Battery wherein is the lithium battery end of the Charge Management unit of Fig. 5, at last by the D2 Schottky diode realize lithium battery power path and and Fig. 4 in the power supply of output converge and supply load, finally realize this device get can purpose.
Claims (5)
1. high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line, it comprises: getting can the unit, surge protection circuit, filter rectifier, charge management circuit and voltage stabilizing circuit; It is characterized in that: also comprise control unit circuit, get the energy unit and comprise iron core and get the energy coil that ultra-high-tension power transmission line passes iron core, be wrapped with at iron core and get the energy coil; Getting can the unit, surge protection circuit, filter rectifier, control unit circuit connect successively; Divide two-way parallel by diode again, lead up to charge management circuit, another road finally provides stable power output for load by voltage stabilizing circuit.
2. high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line as claimed in claim 1 is characterized in that: control unit circuit is connected and composed successively by reference voltage circuit, hysteresis comparison circuit, metal-oxide-semiconductor, high-power resistance.
3. high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line as claimed in claim 1 is characterized in that: the surge protection circuit is made of two-way gas discharge tube, two-way Transient Suppression Diode, piezo-resistance, is connected in parallel on the two ends of the output of getting the energy coil.
4. high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line as claimed in claim 1, it is characterized in that: charge management circuit is made of DC/DC step-down modular converter, lithium cell charging administration module, the DC/DC boost module of wide input range, and DC/DC step-down modular converter is connected with the lithium cell charging administration module respectively with the DC/DC boost module.
5. high-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line as claimed in claim 1 is characterized in that: iron core is to adopt the air gap that has about 1mm, and fills out the respective thickness insulating material between air gap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010210838A CN101867231A (en) | 2010-06-28 | 2010-06-28 | High-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line |
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| CN201010210838A CN101867231A (en) | 2010-06-28 | 2010-06-28 | High-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line |
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| CN201010210838A Pending CN101867231A (en) | 2010-06-28 | 2010-06-28 | High-voltage side mutual inductance energy-acquiring device of high-voltage power transmission line |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064720A (en) * | 2010-12-01 | 2011-05-18 | 南京因泰莱电器股份有限公司 | Automatic energy obtaining power supply with online monitoring function |
| CN102231573A (en) * | 2011-07-13 | 2011-11-02 | 武汉武新电气科技有限公司 | Energy supply power source suitable for small current online power acquisition |
| CN102333403A (en) * | 2011-06-29 | 2012-01-25 | 林万炯 | Protection circuit for preventing LED from impact |
| CN102510136A (en) * | 2011-10-29 | 2012-06-20 | 常熟市董浜镇华进电器厂 | On-line energy supply way on high-voltage side of electronic type current transformer |
| CN102564493A (en) * | 2011-10-28 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Online monitoring system for galloping of overhead power transmission line |
| CN102570855A (en) * | 2011-10-27 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Power supply device for taking electricity from high-voltage side in induction manner |
| CN102904347A (en) * | 2012-11-14 | 2013-01-30 | 天津市翔晟远电力设备实业有限公司 | Environment energy collecting device applied to high voltage transmission and distribution equipment |
| CN102946277A (en) * | 2012-12-03 | 2013-02-27 | 河南省电力公司郑州供电公司 | Grounding access device of OPPC (Opticalphase Conductor) |
| CN105119388A (en) * | 2015-09-01 | 2015-12-02 | 国网新疆电力公司经济技术研究院 | Current transformer energy-obtaining power supply working in wide current range |
| CN108168651A (en) * | 2017-12-16 | 2018-06-15 | 太原理工大学 | A kind of level of material for ball mill detection device |
| CN110212594A (en) * | 2019-06-19 | 2019-09-06 | 北京华清智电科技股份有限公司 | A kind of route CT energy acquisition and accumulation power supply |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064720A (en) * | 2010-12-01 | 2011-05-18 | 南京因泰莱电器股份有限公司 | Automatic energy obtaining power supply with online monitoring function |
| CN102333403A (en) * | 2011-06-29 | 2012-01-25 | 林万炯 | Protection circuit for preventing LED from impact |
| CN102333403B (en) * | 2011-06-29 | 2014-01-29 | 林万炯 | Protection circuit for preventing LED from impact |
| CN102231573B (en) * | 2011-07-13 | 2013-10-02 | 武汉武新电气科技有限公司 | Energy supply power source suitable for small current online power acquisition |
| CN102231573A (en) * | 2011-07-13 | 2011-11-02 | 武汉武新电气科技有限公司 | Energy supply power source suitable for small current online power acquisition |
| CN102570855A (en) * | 2011-10-27 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Power supply device for taking electricity from high-voltage side in induction manner |
| CN102570855B (en) * | 2011-10-27 | 2013-11-06 | 江苏省电力公司连云港供电公司 | Power supply device for taking electricity from high-voltage side in induction manner |
| CN102564493A (en) * | 2011-10-28 | 2012-07-11 | 江苏省电力公司连云港供电公司 | Online monitoring system for galloping of overhead power transmission line |
| CN102564493B (en) * | 2011-10-28 | 2015-02-04 | 国家电网公司 | Online monitoring system for galloping of overhead power transmission line |
| CN102510136A (en) * | 2011-10-29 | 2012-06-20 | 常熟市董浜镇华进电器厂 | On-line energy supply way on high-voltage side of electronic type current transformer |
| CN102904347A (en) * | 2012-11-14 | 2013-01-30 | 天津市翔晟远电力设备实业有限公司 | Environment energy collecting device applied to high voltage transmission and distribution equipment |
| CN102946277A (en) * | 2012-12-03 | 2013-02-27 | 河南省电力公司郑州供电公司 | Grounding access device of OPPC (Opticalphase Conductor) |
| CN102946277B (en) * | 2012-12-03 | 2016-08-03 | 国家电网公司 | OPPC optical fiber land networking device |
| CN105119388A (en) * | 2015-09-01 | 2015-12-02 | 国网新疆电力公司经济技术研究院 | Current transformer energy-obtaining power supply working in wide current range |
| CN108168651A (en) * | 2017-12-16 | 2018-06-15 | 太原理工大学 | A kind of level of material for ball mill detection device |
| CN110212594A (en) * | 2019-06-19 | 2019-09-06 | 北京华清智电科技股份有限公司 | A kind of route CT energy acquisition and accumulation power supply |
| CN110212594B (en) * | 2019-06-19 | 2024-05-03 | 国网安徽省电力有限公司芜湖供电公司 | Circuit CT energy acquisition and energy storage power supply |
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Open date: 20101020 |