CN104852480B - Open loop type high voltage induction power taking and current monitoring device - Google Patents
Open loop type high voltage induction power taking and current monitoring device Download PDFInfo
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- CN104852480B CN104852480B CN201510311359.5A CN201510311359A CN104852480B CN 104852480 B CN104852480 B CN 104852480B CN 201510311359 A CN201510311359 A CN 201510311359A CN 104852480 B CN104852480 B CN 104852480B
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Abstract
The open loop type high voltage induction power taking of the present invention and current monitoring device, including open loop type power taking ring and controller, described open loop type power taking ring includes the first transformer, and the first described transformer is arcuate structure, first transformer Interior permanent magnet, the first transformer is wound with inductance coil；Controller includes current rectifying and wave filtering circuit, MTTP control protection electric circuit, voltage-stabilizing output circuit, and the input of described current rectifying and wave filtering circuit connects the outfan of open loop type power taking ring, the output termination MTTP control protection electric circuit of current rectifying and wave filtering circuit；MTTP control protection electric circuit is connected with the outfan of open loop type power taking ring, and MTTP control protection electric circuit outfan is connected with voltage-stabilizing output circuit.Adopt open loop type power taking ring as voltage generation circuit, broken all limitations of closed loop power taking, solved the problems such as existing power supply mode cost height, operation expense height, complicated construction technique, power supply poor stability.
Description
Technical field
The present invention relates to power network line monitoring technology, particularly a kind of open loop type high voltage induction power taking and current monitoring device.
Background technology
Along with the popularization of power circuit on-line monitoring system, all kinds of monitorings equipment prolonging line arrangement installation is increasing, and the power supply supply of these devices just becomes a problem that must solve, and current commonly used following several ways is powered:
1, wired supply: set cable by power supply feed point deposited (frame) and install point to electrical equipment, the advantage of this kind of mode is that power supply supply is reliable, but there is cable laying work amount, cost is high, and corridor or channel resource can be taken, when distant at feed point and field apparatus or needs supply point is more, this kind of mode suitability is with regard to price differential.
2, Guan Bi transformer supply: by installing closed type transformer on the single running cable, by transformer induced acquisition electric energy, this kind of mode need not socket power lead, convenient and flexible installation, but the feature due to its closed type, there is the magnetically saturated problem of transformer, power supply less stable, and thereby result in the vibrations of transformer, heating, the situations such as abnormal sound, additionally shortcoming device installation environment major part is field or underpass, bad environments, transformer closing point aging, the service life that corrosion often results in equipment is shorter, and once occur that its job stability aging also will be greatly affected.
3, solaode supply: realize opto-electronic conversion by solar panels, then electric energy is stored in accumulator, the output of electric energy is realized by accumulator, this kind of mode is flexible for installation, but its power supply abundance is affected bigger by intensity of sunshine, for overcoming this problem, often select power much larger than the solar panels of load and accumulator, instruction cost is higher, when needs large area uses, electric supply installation will become a significant cost, additionally when in power device cable passage located underground, need to dig hole laying for power line, inconvenience very.
4, accumulator supply: on-the-spot land used installation is powered by accumulator, this mode is easy for installation, flexible arrangement, reliable and stable, but owing to needing regularly to charge a battery or change on-the-spot accumulator by fully charged accumulator, cause old of maintenance higher, when these field apparatus quantity are more and comparatively disperse, consumption artificial, vehicle is huge by this mode, and its benefit is very undesirable on long terms.
Summary of the invention
For solving above-mentioned defect of the prior art, the invention provides a kind of open loop type high voltage induction power taking and current monitoring device, solve the problems such as existing power supply mode cost height, operation expense height, complicated construction technique, power supply poor stability.
For solving above-mentioned technical problem, the present invention program includes: open loop type high voltage induction power taking and current monitoring device, it is characterized in that, including open loop type power taking ring and controller, described open loop type power taking ring includes the first transformer, the first described transformer is arcuate structure, the first transformer Interior permanent magnet, and the first transformer is wound with inductance coil；Described controller includes current rectifying and wave filtering circuit, MPPT control protection electric circuit, voltage-stabilizing output circuit; the input of described current rectifying and wave filtering circuit connects the outfan of open loop type power taking ring; the output termination MPPT control protection electric circuit of current rectifying and wave filtering circuit; all wave rectification and filter function can be realized, convert the alternating voltage that open loop type power taking ring exports to DC source；MPPT control protection electric circuit is connected with the outfan of open loop type power taking ring; MPPT control protection electric circuit outfan is connected with voltage-stabilizing output circuit; by gathering real-time voltage value and the current value of open loop type power taking ring outfan; by the optimizing adjustment to power, it is ensured that the power of open loop type power taking ring output is maintained at peak power；Voltage-stabilizing output circuit by carrying out voltage stabilizing to magnitude of voltage, and output galvanic current pressure is to load.
Further, described open loop type power taking ring also includes the second transformer, and the structure of the second transformer and the first transformer is identical, and the first transformer and the second transformer can clampings relatively.
Further, the medial wall of the first transformer and the second transformer is respectively equipped with some flexible fastening blocks.
nullFurther，Described MPPT control protection electric circuit includes chip U1，7th pin of chip U1、9th pin、Tenth pin and the 13rd pin ground connection，5th pin of chip U1 passes through electric capacity C7 ground connection，Chip U1 the 6th pin by resistance R26 ground connection，12nd pin of chip U1 meets VCC，16th pin of chip U1 connects diode D2 negative pole，Diode D2 positive pole connects amplifier U2 the 7th pin respectively、Resistance R7 one end，Another termination amplifier U2 the 6th pin of resistance R7，Amplifier U2 the 5th pin is connecting resistance R9 one end respectively、Resistance R8 one end，Resistance R8 another chip termination U1 the 14th pin，Resistance R9 other end ground connection，Amplifier U2 the 6th pin connecting resistance R6 one end，The resistance R6 other end is connecting resistance R5 one end respectively、Resistance R4 one end、Amplifier U2 the first pin，Resistance R5 another chip termination U1 the first pin，Another termination amplifier U2 second pin of resistance R4，Amplifier U2 the second pin passes through resistance R3 ground connection，Amplifier U2 the 3rd pin is connecting resistance R1 one end respectively、Resistance R2 one end、Electric capacity C1 one end，The resistance R2 other end and the equal ground connection of the electric capacity C1 other end，Resistance R1 another termination drain current ID；nullChip U1 the 14th pin connects electric capacity C3 one end respectively、Electric capacity C2 one end、Resistance R11 one end、The fixing end of slide rheostat PR2 mono-，The electric capacity C3 other end connects chip U1 the 4th pin respectively、Resistance R10 one end，Resistance R10 other end ground connection，Electric capacity C2 other end ground connection，The resistance R11 other end connects chip U1 the 15th pin respectively、Resistance R12 one end，Resistance R12 other end ground connection，Another fixing end ground connection of slide rheostat PR2，Sliding end connecting resistance R18 one end of slide rheostat PR2，Resistance R18 another terminating diode D1 negative pole，Diode D1 positive pole is connecting resistance R17 one end respectively、Amplifier U3 the 7th pin，Another termination capacitor C4 one end of resistance R17，The electric capacity C4 other end is connecting resistance R13 one end respectively、Amplifier U3 the 6th pin，Another termination slide rheostat PR1 sliding end of resistance R13，Amplifier U3 the 5th pin ground connection，Amplifier U3 the 6th pin connecting resistance R16 one end，The resistance R16 other end is connecting resistance R15 one end respectively、Amplifier U3 the first pin，Another termination amplifier U3 second pin of resistance R15，Amplifier U3 the 3rd pin ground connection，Amplifier U3 the second pin meets accumulator GB by resistance R14；nullChip U1 the 3rd pin is connecting resistance R25 one end respectively、Resistance R24 one end，The resistance R25 other end connects chip U1 the second pin respectively、Resistance R23 one end，The resistance R24 other end connects chip U1 the second pin by electric capacity C6，Another termination slide rheostat PR3 sliding end of resistance R23，Slide rheostat PR3 mono-fixing end ground connection，Another fixing end of slide rheostat PR3 connects amplifier U4 the 7th pin respectively、Electric capacity C5 one end、Zener diode D1 negative pole，The electric capacity C5 other end connects amplifier U4 the 6th pin by resistance R22，Zener diode DW1 positive pole connects amplifier U4 the 6th pin，Amplifier U4 the 5th pin ground connection，Amplifier U4 the 6th pin connects diode D1 negative pole respectively、Resistance R21 one end，The resistance R21 other end connects amplifier U4 the first pin respectively、Resistance R20 one end，Another termination amplifier U4 second pin of resistance R20，Amplifier U4 the 3rd pin ground connection，Amplifier U4 the second pin connects proximity switch SP by resistance R19.
Further, described chip U1 is integrated circuit TL494.
Further, described amplifier U2, U3, U4 are LM324 operational amplifier.
The invention has the beneficial effects as follows:
1, adopt open loop type power taking ring as voltage generation circuit, all limitations of closed loop power taking are broken, the scope of closed loop work to take power electric current is narrower, impact by factors such as the size of line current, saturations is bigger, thus the stability of output is not high, the phenomenon such as eddy current, heating can be produced, easily equipment is caused damage, and open loop type power taking ring is as an open electromagnetic field, working range all can normal operation from 20A to 1000A, the impact of circuit will not be subject to, there is higher stability, produce damage without to equipment.
2, in conjunction with open loop type power taking ring; have also been devised MTTP control protection electric circuit; by this function of power optimizing; ensure that output all-the-time stable is near maximum; compared with closed loop electricity getting device; under same size, under comparable operating conditions, the output of open loop type power taking ring is 8-10 times of closed loop electricity getting device.
3, open loop type power taking ring design is in a pair, including the first transformer and the second transformer, can clamping relatively, not only do not affect respective power taking effect, can also be conveniently installed on line, and not easily drop, be provided with the materials such as rubber inside transformer and make flexible fastening block, power taking ring is made to be adapted to various sizes of wire, it is possible to be more firmly installed on wire.
Accompanying drawing explanation
Fig. 1 is principle of the invention structural representation；
Fig. 2 is the structure chart of power taking ring of the present invention；
Fig. 3 is MPPT control protection electric circuit schematic diagram of the present invention.
In Fig. 2: 1 first transformer, 2 inductance coils, 3 flexible fastening blocks.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the invention is illustrated, it will be appreciated that enforcement example described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Open loop type high voltage induction power taking as depicted in figs. 1 and 2 and current monitoring device, including open loop type power taking ring and controller, described open loop type power taking ring includes the first transformer 1, the first described transformer 1 is arcuate structure, first transformer Interior permanent magnet, being wound with inductance coil 2 on first transformer, the medial wall of the first transformer and the second transformer is respectively equipped with some flexible fastening blocks 3；Described controller includes current rectifying and wave filtering circuit, MPPT control protection electric circuit, voltage-stabilizing output circuit; the input of described current rectifying and wave filtering circuit connects the outfan of open loop type power taking ring; the output termination MPPT control protection electric circuit of current rectifying and wave filtering circuit; all wave rectification and filter function can be realized, convert the alternating voltage that open loop type power taking ring exports to DC source；MPPT control protection electric circuit is connected with the outfan of open loop type power taking ring; MPPT control protection electric circuit outfan is connected with voltage-stabilizing output circuit; by gathering real-time voltage value and the current value of open loop type power taking ring outfan; by the optimizing adjustment to power, it is ensured that the power of open loop type power taking ring output is maintained at peak power；Voltage-stabilizing output circuit by carrying out voltage stabilizing to magnitude of voltage, and output galvanic current pressure is to load.
Described open loop type power taking ring also includes the second transformer, the structure of the second transformer and the first transformer is identical, and first transformer and the second transformer can clamping relatively, the medial wall of the first transformer and the second transformer is respectively equipped with some flexible fastening blocks, first transformer and the second transformer can form a complete annular, directly it is nested with on the line, is firmly fixed on circuit by flexible fastening block.
Mistake in order to obtain maximum power taking efficiency and protection electrical equipment flows infringement, adopts MPPT(MaximumPowerPointnullTracking) maximum power point tracing method is protected，The electric energy obtaining power taking ring of maximal efficiency on the other hand，As shown in Figure 3，Described MPPT control protection electric circuit includes chip U1，7th pin of chip U1、9th pin、Tenth pin and the 13rd pin ground connection，5th pin of chip U1 passes through electric capacity C7 ground connection，Chip U1 the 6th pin by resistance R26 ground connection，12nd pin of chip U1 meets VCC，16th pin of chip U1 connects diode D2 negative pole，Diode D2 positive pole connects amplifier U2 the 7th pin respectively、Resistance R7 one end，Another termination amplifier U2 the 6th pin of resistance R7，Amplifier U2 the 5th pin is connecting resistance R9 one end respectively、Resistance R8 one end，Resistance R8 another chip termination U1 the 14th pin，Resistance R9 other end ground connection，Amplifier U2 the 6th pin connecting resistance R6 one end，The resistance R6 other end is connecting resistance R5 one end respectively、Resistance R4 one end、Amplifier U2 the first pin，Resistance R5 another chip termination U1 the first pin，Another termination amplifier U2 second pin of resistance R4，Amplifier U2 the second pin passes through resistance R3 ground connection，Amplifier U2 the 3rd pin is connecting resistance R1 one end respectively、Resistance R2 one end、Electric capacity C1 one end，The resistance R2 other end and the equal ground connection of the electric capacity C1 other end，Resistance R1 another termination drain current ID；nullChip U1 the 14th pin connects electric capacity C3 one end respectively、Electric capacity C2 one end、Resistance R11 one end、The fixing end of slide rheostat PR2 mono-，The electric capacity C3 other end connects chip U1 the 4th pin respectively、Resistance R10 one end，Resistance R10 other end ground connection，Electric capacity C2 other end ground connection，The resistance R11 other end connects chip U1 the 15th pin respectively、Resistance R12 one end，Resistance R12 other end ground connection，Another fixing end ground connection of slide rheostat PR2，Sliding end connecting resistance R18 one end of slide rheostat PR2，Resistance R18 another terminating diode D1 negative pole，Diode D1 positive pole is connecting resistance R17 one end respectively、Amplifier U3 the 7th pin，Another termination capacitor C4 one end of resistance R17，The electric capacity C4 other end is connecting resistance R13 one end respectively、Amplifier U3 the 6th pin，Another termination slide rheostat PR1 sliding end of resistance R13，Amplifier U3 the 5th pin ground connection，Amplifier U3 the 6th pin connecting resistance R16 one end，The resistance R16 other end is connecting resistance R15 one end respectively、Amplifier U3 the first pin，Another termination amplifier U3 second pin of resistance R15，Amplifier U3 the 3rd pin ground connection，Amplifier U3 the second pin meets accumulator GB by resistance R14；nullChip U1 the 3rd pin is connecting resistance R25 one end respectively、Resistance R24 one end，The resistance R25 other end connects chip U1 the second pin respectively、Resistance R23 one end，The resistance R24 other end connects chip U1 the second pin by electric capacity C6，Another termination slide rheostat PR3 sliding end of resistance R23，Slide rheostat PR3 mono-fixing end ground connection，Another fixing end of slide rheostat PR3 connects amplifier U4 the 7th pin respectively、Electric capacity C5 one end、Zener diode D1 negative pole，The electric capacity C5 other end connects amplifier U4 the 6th pin by resistance R22，Zener diode DW1 positive pole connects amplifier U4 the 6th pin，Amplifier U4 the 5th pin ground connection，Amplifier U4 the 6th pin connects diode D1 negative pole respectively、Resistance R21 one end，The resistance R21 other end connects amplifier U4 the first pin respectively、Resistance R20 one end，Another termination amplifier U4 second pin of resistance R20，Amplifier U4 the 3rd pin ground connection，Amplifier U4 the second pin connects proximity switch SP by resistance R19.Wherein, described chip U1 is integrated circuit TL494, and described amplifier U2, U3, U4 are LM324 operational amplifier.
The operation principle of circuit is: by the detection to power taking ring output voltage, electric current, obtains current output, then by it compared with the memory power of previous moment, so that it is determined that the direction that given reference voltage adjusts.If Δ p > 0, illustrate that reference voltage adjusts in the right direction, it is possible to continue to adjust by original direction；If Δ p < 0, the anisotropy that reference voltage adjusts is described, it is necessary to change the direction adjusted.
Whole power curve is a parabola that Open Side Down, and when given reference voltage increases, if output also increases, then operating point is positioned on the left of maximum power point pmax, need to continue to increase reference voltage；If output reduces, then operating point is positioned on the right side of maximum power point pmax, it is necessary to reduce reference voltage.When given reference voltage reduces, if output also reduces, then operating point is positioned at the left side of pmax, need to increase reference voltage；If output increases, then operating point is positioned at the right side of pmax, need to continue to reduce reference voltage.
I=f(u due to power taking ring property) relation is a monotropic function, therefore, as long as ensureing that the output voltage of power taking ring can remain the Um value corresponding with this condition in real time under any cable current-carrying, just necessarily can ensure that and all exporting its peak power in any moment.
Should be understood that; the above-mentioned description for preferred embodiment is comparatively detailed; therefore the restriction to scope of patent protection of the present invention can not be thought; those of ordinary skill in the art is under the enlightenment of the present invention; under the ambit protected without departing from the claims in the present invention; can also making the various deformation such as replacement, simple combination, these each fall within protection scope of the present invention, and the scope that is claimed of the present invention should be as the criterion with claims.
Claims (3)
1. the power taking of open loop type high voltage induction and current monitoring device, it is characterised in that include open loop type power taking ring and controller, described open loop type power taking ring includes the first transformer, the first described transformer is arcuate structure, the first transformer Interior permanent magnet, and the first transformer is wound with inductance coil；Described controller includes current rectifying and wave filtering circuit, MPPT control protection electric circuit, voltage-stabilizing output circuit; the input of described current rectifying and wave filtering circuit connects the outfan of open loop type power taking ring; the output termination MPPT control protection electric circuit of current rectifying and wave filtering circuit; all wave rectification and filter function can be realized, convert the alternating voltage that open loop type power taking ring exports to DC source；MPPT control protection electric circuit is connected with the outfan of open loop type power taking ring; MPPT control protection electric circuit outfan is connected with voltage-stabilizing output circuit; by gathering real-time voltage value and the current value of open loop type power taking ring outfan; by the optimizing adjustment to power, it is ensured that the power of open loop type power taking ring output is maintained at peak power；Voltage-stabilizing output circuit by carrying out voltage stabilizing to magnitude of voltage, and output galvanic current pressure is to load；Described open loop type power taking ring also includes the second transformer, and the structure of the second transformer and the first transformer is identical, and the first transformer and the second transformer can clampings relatively；The medial wall of the first transformer and the second transformer is respectively equipped with some flexible fastening blocks；nullDescribed MPPT control protection electric circuit includes chip U1，7th pin of chip U1、9th pin、Tenth pin and the 13rd pin ground connection，5th pin of chip U1 passes through electric capacity C7 ground connection，Chip U1 the 6th pin by resistance R26 ground connection，12nd pin of chip U1 meets VCC，16th pin of chip U1 connects diode D2 negative pole，Diode D2 positive pole connects amplifier U2 the 7th pin respectively、Resistance R7 one end，Another termination amplifier U2 the 6th pin of resistance R7，Amplifier U2 the 5th pin is connecting resistance R9 one end respectively、Resistance R8 one end，Resistance R8 another chip termination U1 the 14th pin，Resistance R9 other end ground connection，Amplifier U2 the 6th pin connecting resistance R6 one end，The resistance R6 other end is connecting resistance R5 one end respectively、Resistance R4 one end、Amplifier U2 the first pin，Resistance R5 another chip termination U1 the first pin，Another termination amplifier U2 second pin of resistance R4，Amplifier U2 the second pin passes through resistance R3 ground connection，Amplifier U2 the 3rd pin is connecting resistance R1 one end respectively、Resistance R2 one end、Electric capacity C1 one end，The resistance R2 other end and the equal ground connection of the electric capacity C1 other end，Resistance R1 another termination drain current ID；nullChip U1 the 14th pin connects electric capacity C3 one end respectively、Electric capacity C2 one end、Resistance R11 one end、The fixing end of slide rheostat PR2 mono-，The electric capacity C3 other end connects chip U1 the 4th pin respectively、Resistance R10 one end，Resistance R10 other end ground connection，Electric capacity C2 other end ground connection，The resistance R11 other end connects chip U1 the 15th pin respectively、Resistance R12 one end，Resistance R12 other end ground connection，Another fixing end ground connection of slide rheostat PR2，Sliding end connecting resistance R18 one end of slide rheostat PR2，Resistance R18 another terminating diode D1 negative pole，Diode D1 positive pole is connecting resistance R17 one end respectively、Amplifier U3 the 7th pin，Another termination capacitor C4 one end of resistance R17，The electric capacity C4 other end is connecting resistance R13 one end respectively、Amplifier U3 the 6th pin，Another termination slide rheostat PR1 sliding end of resistance R13，Amplifier U3 the 5th pin ground connection，Amplifier U3 the 6th pin connecting resistance R16 one end，The resistance R16 other end is connecting resistance R15 one end respectively、Amplifier U3 the first pin，Another termination amplifier U3 second pin of resistance R15，Amplifier U3 the 3rd pin ground connection，Amplifier U3 the second pin meets accumulator GB by resistance R14；nullChip U1 the 3rd pin is connecting resistance R25 one end respectively、Resistance R24 one end，The resistance R25 other end connects chip U1 the second pin respectively、Resistance R23 one end，The resistance R24 other end connects chip U1 the second pin by electric capacity C6，Another termination slide rheostat PR3 sliding end of resistance R23，Slide rheostat PR3 mono-fixing end ground connection，Another fixing end of slide rheostat PR3 connects amplifier U4 the 7th pin respectively、Electric capacity C5 one end、Zener diode D1 negative pole，The electric capacity C5 other end connects amplifier U4 the 6th pin by resistance R22，Zener diode DW1 positive pole connects amplifier U4 the 6th pin，Amplifier U4 the 5th pin ground connection，Amplifier U4 the 6th pin connects diode D1 negative pole respectively、Resistance R21 one end，The resistance R21 other end connects amplifier U4 the first pin respectively、Resistance R20 one end，Another termination amplifier U4 second pin of resistance R20，Amplifier U4 the 3rd pin ground connection，Amplifier U4 the second pin connects proximity switch SP by resistance R19.
2. open loop type high voltage induction power taking according to claim 1 and current monitoring device, it is characterised in that described chip U1 is integrated circuit TL494.
3. open loop type high voltage induction power taking according to claim 2 and current monitoring device, it is characterised in that described amplifier U2, U3, U4 are LM324 operational amplifier.
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| CN201510311359.5A CN104852480B (en) | 2015-06-09 | 2015-06-09 | Open loop type high voltage induction power taking and current monitoring device |
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| CN201510311359.5A CN104852480B (en) | 2015-06-09 | 2015-06-09 | Open loop type high voltage induction power taking and current monitoring device |
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| CN104852480A CN104852480A (en) | 2015-08-19 |
| CN104852480B true CN104852480B (en) | 2016-07-06 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656574U (en) * | 2010-01-11 | 2010-11-24 | 山东康威通信技术股份有限公司 | Non-contact induction power-taking device of power tunnel cable |
| CN102790417A (en) * | 2012-08-08 | 2012-11-21 | 清华大学 | Road-automobile interactive wireless charging system for electric automobile |
| CN204258402U (en) * | 2014-12-05 | 2015-04-08 | 国家电网公司 | A kind of electric automobile cellular radio charging pile |
| CN204794380U (en) * | 2015-06-09 | 2015-11-18 | 国网山东济南市历城区供电公司 | Ring -opening formula high pressure induction electricity -taking and current monitoring device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656574U (en) * | 2010-01-11 | 2010-11-24 | 山东康威通信技术股份有限公司 | Non-contact induction power-taking device of power tunnel cable |
| CN102790417A (en) * | 2012-08-08 | 2012-11-21 | 清华大学 | Road-automobile interactive wireless charging system for electric automobile |
| CN204258402U (en) * | 2014-12-05 | 2015-04-08 | 国家电网公司 | A kind of electric automobile cellular radio charging pile |
| CN204794380U (en) * | 2015-06-09 | 2015-11-18 | 国网山东济南市历城区供电公司 | Ring -opening formula high pressure induction electricity -taking and current monitoring device |
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