CN202737769U - High-voltage line suspension electricity-taking apparatus - Google Patents
High-voltage line suspension electricity-taking apparatus Download PDFInfo
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- CN202737769U CN202737769U CN 201220342191 CN201220342191U CN202737769U CN 202737769 U CN202737769 U CN 202737769U CN 201220342191 CN201220342191 CN 201220342191 CN 201220342191 U CN201220342191 U CN 201220342191U CN 202737769 U CN202737769 U CN 202737769U
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Abstract
Provided is a high-voltage line suspension electricity-taking apparatus, comprising an electromagnetism loop, a voltage control circuit, a protection circuit, a rectification circuit, a filter circuit, and a voltage stabilizing circuit which are sequentially connected, wherein the electromagnetism loop comprises a current transformer; the voltage control circuit comprises a bidirectional silicon controlled rectifier and a resistor; the bidirectional silicon controlled rectifier is parallelly connected to the secondary side of the current transformer; and one end of the resistor is connected to the gate pole of the bidirectional silicon controlled rectifier, with the other end of the resistor being connected to the T2 pole of the bidirectional silicon controlled rectifier, thus to control to obtain energy from the primary side and the voltage from the secondary side. The whole circuit features simple and practical design, improves the stability of the apparatus, and decreases the production cost. The housing adopts a fully enclosed manner and is applicable to various working environments. The mutual inductor realizes electrical isolation, and improves the security for human body and the apparatus.
Description
[technical field]
The utility model relates to a kind of induction electricity getting device, especially a kind of high-tension line induction electricity getting device.
[background technology]
Increase along with high-tension line on-line monitoring equipment needs, suspension electricity getting device to its power supply is also more and more, application number for 201010134788 with 200910309627 application documents in the solution of different electricity getting device is provided respectively, but make a general survey of these devices in the industry, all have the too complicated problem of power-supply circuit, the complexity of circuit design will certainly reduce the reliability of device and improve production cost.
[summary of the invention]
The utility model provides a kind of high-tension line suspension electricity getting device, and stable, practical high-tension line stabilized voltage power supply solution can be provided, and the galvanic current source not only can be provided preferably, and simplifies power-supply circuit, has improved the stability of device.
High-tension line suspension electricity getting device of the present utility model, comprise the electromagnetic circuit, voltage control circuit, protective circuit, rectification circuit, filter circuit, the voltage stabilizing circuit that connect successively, described electromagnetic circuit comprises current transformer, and described voltage control circuit comprises bidirectional triode thyristor and resistance; Described bidirectional triode thyristor is connected to the secondary side of described current transformer, the gate pole of the described bidirectional triode thyristor of a termination of described resistance, and the T2 utmost point of the described bidirectional triode thyristor of another termination is to control from the energy of primary side acquisition and the voltage of secondary side.
As an embodiment, described current transformer is open-close type current transformer, is divided into the up and down semi-circular iron core of two symmetries, wherein is wound with wire on the semi-circular iron core on one side, and two wire of output terminal of drawing are connected in described protective circuit.
As an embodiment, piezo-resistance and instantaneous twin zener dioder that described protective circuit comprises and connects.
As an embodiment, described rectification circuit is made of the rectifier bridge element.
As an embodiment, described filter circuit comprises electric capacity, and described electric capacity is the electric capacity with function of storage power.
As an embodiment, described voltage stabilizing circuit comprises the voltage stabilizing chip.
As an embodiment, also comprise super capacitor, described super capacitor is connected with the output of described voltage stabilizing circuit, is used for energy reserve.
The utility model obtains energy by special current transformer from high-tension line; Turn-off function by bidirectional triode thyristor is controlled the energy that obtains from circuit, thus the voltage of control instrument transformer secondary side; Through after the protective circuit by exporting behind the rectifying and wave-filtering; By the voltage stabilizing chip filtered voltage is carried out voltage stabilizing again, thereby the voltage of stable output is powered to power consumption equipment.Can not surpass 20 volts because consider the voltage of the electric capacity in the filter circuit and the input voltage in the voltage stabilizing circuit, so that voltage control seems is important especially.Thereby mention and connect the magnetic flux control voltage of control coil when being controlled at large electric current in a lot of documents, although method is feasible, redundant complexity seems.The utility model has been simplified control circuit: directly bidirectional triode thyristor is connected to the instrument transformer secondary side, then utilize bidirectional triode thyristor to the shutoff effect of alternating current, reach when being enough to trigger the bidirectional triode thyristor conducting at induced voltage, with the direct conducting of secondary side, stop to obtain energy from primary side, thereby reach the purpose of controlling voltage.
As core material, magnetic field intensity is high, in the situation that cable is several amperes in little electric current, can induce satisfactory voltage with silicon steel sheet for closed type annular open-close type current transformer; Simultaneously, open-close type current transformer is become by two annular iron core group of symmetry up and down, has closure function, the convenient installation.
Take super capacitor as the energy-accumulating element of circuit, avoided the existing life problems of use lithium battery; Simultaneously, in the situation that the high-tension line normal operation, super capacitor is in the state of charging, and in the situation that high-tension line breaks down or has a power failure, super capacitor then converts the transmission of electricity state to, can play the effect of power supply, has guaranteed the reliably working of power consumption equipment.
When the cable current wide fluctuations, the direct voltage that power supply circuits still can stable output, the reliability service of assurance device.The primary current of working that the laboratory is test is the 10-1500(ampere).Can only reach 1500A because the primary current that the laboratory can provide is the highest, this moment, equipment still can work, so the 1500(ampere) be not the highest primary current that this device can be worked.
Whole circuit design is simple and practical, has improved the stability of installing, has reduced production cost.The shell totally enclosed type can adapt to various operational environments.Instrument transformer is realized electrical isolation, has been improved the fail safe of the person and device.
[description of drawings]
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is these practical new circuit theory diagrams.
[embodiment]
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail:
As shown in Figure 1, the utility model comprises electromagnetic circuit 1, voltage control circuit 2, and protective circuit 3, rectification circuit 4, filter circuit 5, voltage stabilizing circuit 6 in addition, as a preferred embodiment, can also comprise super capacitor 7.
Electromagnetic circuit 1 comprises that current transformer is (as an embodiment; it can be open-close type current transformer; be divided into the up and down semi-circular iron core of two symmetries; twine wire on the semi-circular iron core on one side therein; draw two wire of output terminal; form current transformer; be connected to protective circuit; the open-close type instrument transformer is used for being installed in high voltage transmission line; induce required alternating voltage and alternating current); current transformer is installed on the high voltage transmission line, and output is connected to voltage control circuit 2, and the output of voltage control circuit 2 is received protective circuit 3; the output of protective circuit 3 is received rectification circuit 4; the output of rectification circuit 4 is connected to filter circuit 5, and the output of filter circuit 5 is connected to voltage stabilizing circuit 6, and super capacitor 7 and voltage stabilizing circuit 6 outputs are in parallel.
Operation principle is as described below: current transformer is contained on the ultra-high-tension power transmission line; produce alternating magnetic field by power current in the high voltage transmission line; current transformer obtains energy from ultra-high-tension power transmission line; by voltage control circuit 2 control instrument transformer secondary side both end voltage; when appearance is superpotential; protective circuit 3 actions; short circuit instrument transformer secondary side; carry out rectification by 4 pairs of voltage waveforms of rectification circuit again; then obtain the relatively level and smooth waveform of waveform by filter circuit 5; just can obtain stably direct voltage by voltage stabilizing circuit 6 again; super capacitor 7 is connected to the output of voltage stabilizing circuit 6; in the situation that high-tension line normal operation; super capacitor is in the state of charging, and in the situation that high-tension line breaks down or has a power failure, super capacitor then converts the transmission of electricity state to; can play the effect of power supply, guarantee the reliably working of power consumption equipment.
As a preferred embodiment, the high-tension line suspension electricity getting device parallel running among all right a plurality of Fig. 1 of the utility model, power output end also connects, thereby can obtain larger power output.In addition, the utility model can also by changing parameter, change output voltage.
Fig. 2 is circuit diagram of the present utility model in the preferred embodiment.
As an embodiment, voltage control circuit 2 comprises bidirectional triode thyristor and resistance, the T1 of bidirectional triode thyristor TRIAC, the T2 utmost point are connected to current transformer Trans Cup1 secondary side both sides among the figure, one of resistance R 1 is terminated at the gate pole of bidirectional triode thyristor TRIAC, and the other end is connected to the T2 utmost point of bidirectional triode thyristor TRIAC.As an application example, the model of the bidirectional triode thyristor of selecting can be BTA41-600B.Maximum controllable current is 40A, and the maximum trigger current one, two of the gate pole that records in the time of 25 degrees centigrade, three quadrants trigger and are that it is 100mA that 50mA, four-quadrant trigger.The resistance of optional resistance R 1 is 500-15001000 ohm, and the difference of R1 resistance can affect the size of gate current, can have influence at last the voltage swing of Current Transformer Secondary side.Model that it should be noted that each device is not got rid of other optional models.
As an embodiment, in described protective circuit 3, piezo-resistance ZOV and instantaneous twin zener dioder TVS also connect, and can better realize circuit is protected.Utilize the nonlinear characteristic of piezo-resistance, when overvoltage appeared at two interpolar of piezo-resistance, piezo-resistance can be with voltage case position at a relatively-stationary magnitude of voltage, thereby realized the protection to late-class circuit.And after instantaneous voltage surpassed the circuit normal working voltage, snowslide can occur, and offering super-low resistance path of transient current, transient current is drawn away by instantaneous twin zener dioder TVS, avoids protected device.In protective circuit 3, piezo-resistance is protected as the first order, and instantaneous twin zener dioder TVS protects as rear class.When pulse voltage arrived, instantaneous twin zener dioder TVS at first started, can be the accurate case of transient overvoltage position in certain value; If surge current is large again, then piezo-resistance ZOV starting, the unnecessary surge current of releasing.Protective circuit 3 simplicity of design, with low cost, combine that the response time is fast, case position voltage is low and surge current advantage capacious.
As an embodiment, rectification circuit 4 is taked the mode of full-bridge rectification.The rectification circuit that the alternating voltage of input and alternating current form through rectifier bridge, end output in " 3 " " 4 " of rectification circuit converts direct voltage and direct current in Fig. 2.As an application example, the model of the rectifier bridge of selecting can be KBPC608, the withstand voltage 600V of maximum reverse, electric current 6A, working range-55 ℃～125 ℃.But do not get rid of other optional models.
In the filter circuit 5, after filtering capacitor C 1, circuit has been exported direct voltage and the direct current that satisfies the ripple condition.As an embodiment, consider that filter capacitor takes into account the effect of storage power, the appearance value of the filter capacitor C1 that selects is 4700 microfarads.
Behind wave circuit 5 after filtration, obtained direct voltage in a big way, this direct voltage can be because the change of cable current, the variation of load and changing.For obtaining stable VD, as a preferred embodiment, during designing voltage regulator circuit 6, can consider to allow filtered voltage through a voltage stabilizing chip.Voltage stabilizing circuit can comprise the resistance of piezo-resistance, voltage stabilizing chip, regulation voltage.Consider carrying load ability and its larger input voltage range, through comparison in many ways, as a preferred embodiment, can select the voltage stabilizing chip of model LT1083, LT1083 is the adjustable low voltage difference voltage stabilizing of output voltage chip, wherein 1.5V≤(V
IN-V
OUT)≤25V, maximum output current are 7.5A, can meet the demands.
In order more clearly to embody remarkable result of the present utility model, Fig. 3-Fig. 6 is experimental waveform figure of the present utility model.Wherein: passage 1 survey is the electric current (observe for convenient, do not show among the figure) of the high-tension line of laboratory simulation; Passage 2 surveys are open-close type current transformer secondary side both end voltage.
Fig. 3 is to shown in Figure 6 in the voltage at open-close type current transformer secondary side two ends such as the Figure of description, and along with the increase of electric current, voltage control circuit is started working, and the voltage control at open-close type current transformer secondary side two ends in allowed limits.Be described as follows:
As shown in Figure 3, this moment, high voltage line current was lower, and instrument transformer secondary side induced voltage is lower, and bidirectional triode thyristor is off-state.
As shown in Figure 4, this moment, high voltage line current raise gradually, and instrument transformer secondary side induced voltage raises gradually, and the bidirectional triode thyristor triggering and conducting limits excessively obtaining of energy, and the secondary side maximum voltage tends towards stability gradually, guarantees secondary side voltage in allowed limits.
Shown in Fig. 5,6, high voltage line current continues to raise, and the bidirectional triode thyristor ON time increases gradually, further limits obtaining of energy, guarantees secondary side voltage in allowed limits.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. high-tension line suspension electricity getting device, it is characterized in that, comprise the electromagnetic circuit, voltage control circuit, protective circuit, rectification circuit, filter circuit, the voltage stabilizing circuit that connect successively, described electromagnetic circuit comprises current transformer, and described voltage control circuit comprises bidirectional triode thyristor and resistance; Described bidirectional triode thyristor is connected to the secondary side of described current transformer, the gate pole of the described bidirectional triode thyristor of a termination of described resistance, and the T2 level of the described bidirectional triode thyristor of another termination is to control from the energy of primary side acquisition and the voltage of secondary side.
2. high-tension line suspension electricity getting device according to claim 1; it is characterized in that: described current transformer is open-close type current transformer; be divided into the up and down semi-circular iron core of two symmetries; wherein be wound with wire on the semi-circular iron core on one side, two wire of output terminal of drawing are connected in described protective circuit.
3. high-tension line suspension electricity getting device according to claim 1 and 2 is characterized in that: piezo-resistance and instantaneous twin zener dioder that described protective circuit comprises and connects.
4. high-tension line suspension electricity getting device according to claim 1, it is characterized in that: described rectification circuit is made of the rectifier bridge element.
5. high-tension line suspension electricity getting device according to claim 1, it is characterized in that: described filter circuit comprises electric capacity, described electric capacity is the electric capacity with function of storage power.
6. high-tension line suspension electricity getting device according to claim 1, it is characterized in that: described voltage stabilizing circuit comprises the voltage stabilizing chip.
7. high-tension line suspension electricity getting device according to claim 1, it is characterized in that: also comprise super capacitor, described super capacitor is connected with the output of described voltage stabilizing circuit, is used for energy reserve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342191 CN202737769U (en) | 2012-07-16 | 2012-07-16 | High-voltage line suspension electricity-taking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342191 CN202737769U (en) | 2012-07-16 | 2012-07-16 | High-voltage line suspension electricity-taking apparatus |
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| CN202737769U true CN202737769U (en) | 2013-02-13 |
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| CN 201220342191 Expired - Lifetime CN202737769U (en) | 2012-07-16 | 2012-07-16 | High-voltage line suspension electricity-taking apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595301A (en) * | 2013-11-22 | 2014-02-19 | 湖北工业大学 | Magnetic force suspension robot for operation of overhead high-tension power transmission line |
| CN104201757A (en) * | 2014-06-17 | 2014-12-10 | 国家电网公司 | Distribution network pole-mounted power supply device |
| CN104237701A (en) * | 2014-10-05 | 2014-12-24 | 廖小雄 | Industrial energy equipment safety operation monitoring-controlling and early warning device |
| CN104501976A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Passive wireless temperature acquisition system |
-
2012
- 2012-07-16 CN CN 201220342191 patent/CN202737769U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595301A (en) * | 2013-11-22 | 2014-02-19 | 湖北工业大学 | Magnetic force suspension robot for operation of overhead high-tension power transmission line |
| CN103595301B (en) * | 2013-11-22 | 2015-07-15 | 湖北工业大学 | Magnetic force suspension robot for operation of overhead high-tension power transmission line |
| CN104201757A (en) * | 2014-06-17 | 2014-12-10 | 国家电网公司 | Distribution network pole-mounted power supply device |
| CN104237701A (en) * | 2014-10-05 | 2014-12-24 | 廖小雄 | Industrial energy equipment safety operation monitoring-controlling and early warning device |
| CN104501976A (en) * | 2015-01-12 | 2015-04-08 | 国网上海市电力公司 | Passive wireless temperature acquisition system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |