CN204290507U - A kind of electricity getting device of ultra-high-tension power transmission line - Google Patents
A kind of electricity getting device of ultra-high-tension power transmission line Download PDFInfo
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- CN204290507U CN204290507U CN201420761610.9U CN201420761610U CN204290507U CN 204290507 U CN204290507 U CN 204290507U CN 201420761610 U CN201420761610 U CN 201420761610U CN 204290507 U CN204290507 U CN 204290507U
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Abstract
The utility model discloses a kind of electricity getting device of ultra-high-tension power transmission line, comprise and be connected to voltage transformer on voltage power lines and power consumption equipment, also comprise the wireless power transmission module be connected between voltage transformer and power consumption equipment, described wireless power transmission module comprises the AC-DC converter be connected with voltage transformer, and described AC-DC converter connects high-frequency inverter, transmitting coil, receiving coil, rectification circuit and DC-DC converter successively.The utility model is directly from ultra-high-tension power transmission line power taking, and the power consumption equipment be converted on galvanic current service voltage transmission line uses, wherein, transmitting coil in wireless power transmission module, the distance of receiving coil have 30cm at least, make the electrical isolation having 30cm between electrical network high-pressure side and power consumption equipment low-pressure end at least, ensure that the safety of power consumption equipment and the reliability service of ultra-high-tension power transmission line.
Description
Technical field
The utility model relates to wireless power transmission application and high-voltage fence field, particularly a kind of electricity getting device of ultra-high-tension power transmission line.
Background technology
Ultra-high-tension power transmission line often needs install some for monitoring, the auxiliary equipment of Monitoring Line situation, these equipment need the constant voltage dc source using low voltage.At present, on ultra-high-tension power transmission line, the method for supplying power to of auxiliary equipment mainly contains following several:
(1) adopt solar panel to power, but solar panel is after long-term work a period of time, just needs to safeguard or change, and this just needs to have a power failure on important transmission line, and institute is unreliable in this way, and difficult in maintenance, cost is high;
(2) carry out laser powered sensor by optical fiber, but there is the little shortcoming of amount of power supply in it, and due to the equipment such as generating laser, optical fiber, optical-electrical converter easily aging, very easily affect power supply quality;
(3) utilize the electric current of high voltage transmission line to carry out induction power taking, namely utilize current transformer to carry out induction power taking from high voltage transmission line.Because current transformer primary side current alters a great deal, from several amperes to kilo-ampere change, therefore this method of supplying power to is very unstable.
Summary of the invention
For solving the problem, the purpose of this utility model is the electricity getting device providing a kind of ultra-high-tension power transmission line, for providing high-power, galvanic current in real time for the power consumption equipment on high-tension line, and diagnoses ultra-high-tension power transmission line fault.
The technical scheme that the invention for solving the technical problem adopts is:
An electricity getting device for ultra-high-tension power transmission line, comprise and be connected to voltage transformer on voltage power lines and power consumption equipment, also comprise the wireless power transmission module be connected between voltage transformer and power consumption equipment, described wireless power transmission module comprises:
The AC-DC converter be connected with voltage transformer, converts direct voltage to for the low-voltage AC exported by voltage transformer;
The high-frequency inverter be connected with AC-DC converter, is converted to high-frequency alternating current for direct voltage AC-DC converter changed;
With the transmitting coil that high-frequency inverter connects and with transmitting coil the corresponding receiving coil arranged, when high-frequency alternating current frequency for exporting at high-frequency inverter equals the natural resonance frequency of transmitting coil and receiving coil, transmitting coil and receiving coil produce electromagnetic resonance and are coupled, the electrical energy transfer of the high-frequency alternating current produced by high-frequency inverter to receiving coil, and exports high-frequency alternating current by receiving coil;
The rectification circuit be connected with receiving coil, is converted to direct voltage for the high-frequency alternating current exported by receiving coil;
The DC-DC converter be connected with rectification circuit, the direct voltage for being exported by rectification circuit is converted to the direct voltage that power consumption equipment can normally use.
Further, described high-frequency inverter adopts the controlled resonant converter topology realizing Sofe Switch, described transmitting coil is consistent with the natural resonance frequency of receiving coil, and described transmitting coil and receiving coil are all undertaken tuning by the mode of series capacitance, the resonance frequency of transmitting coil and corresponding electric capacity is made to equal the resonance frequency of receiving coil and corresponding electric capacity.
Further, at least 30cm of the distance between described transmitting coil and receiving coil.
Further, described AC-DC converter, when the voltage of the low-voltage AC that voltage transformer exports is lower, adopts uncontrollable full bridge rectifier topology, low-voltage AC is converted to the direct voltage that applicable high-frequency inverter uses;
Described AC-DC converter is when the voltage of the low-voltage AC that voltage transformer exports is higher, adopt the topology of Industrial Frequency Transformer and uncontrollable full bridge rectifier, or adopt the topology of uncontrollable full bridge rectifier and DC chopped-wave, or adopt uncontrollable full bridge rectifier to isolate the topology of DC-DC converter with band, low-voltage AC is converted to the direct voltage that applicable high-frequency inverter uses.
Further, be provided with diode between described wireless power transmission module and power consumption equipment, the cathode output end of described DC-DC converter is connected with the anode of diode, and the negative electrode of described diode is connected with the electrode input end of power consumption equipment.
Further, the negative electrode of described diode is also connected with battery and fault detection module, and described DC-DC converter, fault detection module, battery and power consumption equipment are altogether, wherein, described battery is used for when ultra-high-tension power transmission line is out of order or wireless power transmission module is out of order and makes wireless power transmission module not export, and powers to separately fault detection module and power consumption equipment.
Further, described fault detection module comprises microprocessor and wireless signal transmitter, for the direct voltage that Real-time Collection DC-DC converter exports, receive this direct voltage by microprocessor and carry out failure diagnosis, and when direct voltage is less than voltage threshold, diagnosis ultra-high-tension power transmission line or wireless power transmission module failure, produce failure alarm signal, and failure alarm signal sent to the monitor supervision platform of far-end by wireless signal transmitter.
The beneficial effects of the utility model are:
The utility model adopts a kind of electricity getting device of ultra-high-tension power transmission line, directly from ultra-high-tension power transmission line power taking, and the power consumption equipment be converted on galvanic current service voltage transmission line uses, wherein, transmitting coil in wireless power transmission module, the distance of receiving coil have 30cm at least, make the electrical isolation having 30cm between electrical network high-pressure side and power consumption equipment low-pressure end at least, ensure that the safety of power consumption equipment and the reliability service of ultra-high-tension power transmission line.Fault detection module can diagnose wireless power transmission module failure, and ultra-high-tension power transmission line short circuit or open circuit fault, and fault discovery is more timely, and promotes treatment effeciency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Fig. 1 is anatomical connectivity schematic diagram of the present utility model.
Embodiment
With reference to shown in Fig. 1, the electricity getting device of a kind of ultra-high-tension power transmission line of the present utility model, comprise and be connected to voltage transformer on voltage power lines and power consumption equipment, also comprise the wireless power transmission module be connected between voltage transformer and power consumption equipment, described wireless power transmission module comprises:
The AC-DC converter be connected with voltage transformer, converts direct voltage to for the low-voltage AC exported by voltage transformer;
The high-frequency inverter be connected with AC-DC converter, is converted to high-frequency alternating current for direct voltage AC-DC converter changed;
With the transmitting coil that high-frequency inverter connects and with transmitting coil the corresponding receiving coil arranged, when high-frequency alternating current frequency for exporting at high-frequency inverter equals the natural resonance frequency of transmitting coil and receiving coil, transmitting coil and receiving coil produce electromagnetic resonance and are coupled, the electrical energy transfer of the high-frequency alternating current produced by high-frequency inverter to receiving coil, and exports high-frequency alternating current by receiving coil;
The rectification circuit be connected with receiving coil, is converted to direct voltage for the high-frequency alternating current exported by receiving coil;
The DC-DC converter be connected with rectification circuit, the direct voltage for being exported by rectification circuit is converted to the direct voltage that power consumption equipment can normally use.
Wherein, be provided with diode between described wireless power transmission module and power consumption equipment, the cathode output end of described DC-DC converter is connected with the anode of diode, and the negative electrode of described diode is connected with the electrode input end of power consumption equipment.The negative electrode of described diode is also connected with battery and fault detection module, and described DC-DC converter, fault detection module, battery and power consumption equipment are altogether, wherein, described battery is used for when ultra-high-tension power transmission line is out of order or wireless power transmission module is out of order and makes wireless power transmission module not export, and powers to separately fault detection module and power consumption equipment.Significantly, voltage transformer converts the High Level AC Voltage on ultra-high-tension power transmission line to low-voltage AC, then converting low-voltage AC to galvanic current by wireless power transmission module presses supply power consumption equipment to use, and meanwhile, this direct voltage can charge for battery.
For ensureing the electrical isolation of electrical network high-pressure side and power consumption equipment low-pressure end, ensure the safety of power consumption equipment and the reliability service of ultra-high-tension power transmission line, at least 30cm of the distance between described transmitting coil and receiving coil.
The function of AC-DC converter converts the low-voltage AC that voltage transformer exports to direct voltage.When the voltage of the low-voltage AC that voltage transformer exports is enough low, AC-DC converter can adopt uncontrollable full bridge rectifier topology, low-voltage AC is transformed into the direct voltage that applicable high-frequency inverter uses.If during the voltage compare height of low-voltage AC, AC-DC converter can adopt the topology of Industrial Frequency Transformer and uncontrollable full bridge rectifier, first with Industrial Frequency Transformer, low-voltage AC is depressured to suitable magnitude of voltage, then carries out rectification by uncontrollable full bridge rectifier; It also can adopt the topology of uncontrollable full bridge rectifier and DC chopped-wave, or uncontrollable full bridge rectifier isolates the topology of DC-DC converter with band, low-voltage AC is transformed into the direct voltage that applicable high-frequency inverter uses.In practical application, although the concrete topology of AC-DC converter is not limited to above topology, application of the present utility model can be realized all within protection range of the present utility model.
The DC voltage conversion that AC-DC converter exports is become high-frequency alternating current by high-frequency inverter, by controlling the switching frequency of high-frequency inverter, the frequency of the high-frequency alternating current that high-frequency inverter can be made to export equals the natural resonance frequency of transmitting coil and receiving coil, thus make transmitting coil and the coupling of receiving coil generation electromagnetic resonance, transmitting coil by the electrical energy transfer of high-frequency alternating current to receiving coil, and can export high-frequency alternating current by receiving coil.Because the switching frequency of high-frequency inverter is very high, in order to reduce switching loss, high-frequency inverter can adopt the controlled resonant converter topology realizing Sofe Switch.In order to make transmitting coil and the coupling of receiving coil generation electromagnetic resonance, transmitting coil will be designed to the same with the natural resonance frequency of receiving coil, and consistent with the frequency of high-frequency alternating current; Can by transmitting coil series capacitance, and on receiving coil series capacitance, carry out tuning, make the resonance frequency of transmitting coil and corresponding electric capacity equal the resonance frequency of receiving coil and corresponding electric capacity.
The high-frequency alternating current that receiving coil exports is transformed into direct voltage by rectification circuit, is then become to be applicable to the direct voltage of power consumption equipment use by DC voltage conversion by DC-DC converter.Rectification circuit generally adopts uncontrollable rectification circuit.DC-DC converter can adopt the converter topologies such as Buck, Boost, Buck/Boost, even can adopt the DC-DC converter topology of band isolation, and concrete topology is selected to determine primarily of the direct voltage of DC-DC converter both sides and the ratio of direct voltage.DC-DC converter has feedback control circuit, and voltage mode can be adopted to control, or Controlled in Current Mode and Based, no matter but adopt which kind of control strategy, all to ensure that DC-DC converter has constant voltage and exports and current-limiting function.
The cathode output end of DC-DC converter is connected with the anode of diode.The negative electrode of diode is connected with the positive pole of the electrode input end of fault detection module, battery, the electrode input end of power consumption equipment.DC-DC converter, fault detection module, battery and power consumption equipment are altogether.
When ultra-high-tension power transmission line is out of order or wireless power transmission module is out of order and makes wireless power transmission module not export, battery powers to separately fault detection module and power consumption equipment.In the utility model, battery keeps the time long enough of power supply, to ensure that the result of failure diagnosis can send by fault detection module, and ensures that power consumption equipment can process data.
Fault detection module comprises microprocessor and wireless signal transmitter, the direct voltage that fault detection module real-time sampling DC-DC converter exports, and direct voltage is sent to microprocessor, carries out failure diagnosis by microprocessor.When direct voltage is less than voltage threshold, microprocessor diagnosis ultra-high-tension power transmission line or wireless power transmission module break down, and failure alarm signal is sent to wireless signal transmitter, by wireless signal transmitter, fault message is sent to the monitor supervision platform of far-end.
The utility model adopts wireless power transmission technology from ultra-high-tension power transmission line power taking, and the power consumption equipment converted on galvanic current supply ultra-high-tension power transmission line uses.Transmitting coil in wireless electric energy transmission device, the distance of receiving coil have 30cm at least, make the electrical isolation having 30cm between electrical network high-pressure side and power consumption equipment low-pressure end at least, ensure that the safety of power consumption equipment and the reliability service of ultra-high-tension power transmission line.Fault detection module can diagnose wireless power transmission module failure, and ultra-high-tension power transmission line short circuit or open circuit fault.The utility model by the impact of transmission line electric current, can not provide high-power in real time, galvanic current, and diagnoses ultra-high-tension power transmission line fault, is highly suitable for all power consumption equipments on ultra-high-tension power transmission line.
The above, just preferred embodiment of the present utility model, the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.
Claims (7)
1. the electricity getting device of a ultra-high-tension power transmission line, comprise and be connected to voltage transformer on voltage power lines and power consumption equipment, it is characterized in that, also comprise the wireless power transmission module be connected between voltage transformer and power consumption equipment, described wireless power transmission module comprises:
The AC-DC converter be connected with voltage transformer, converts direct voltage to for the low-voltage AC exported by voltage transformer;
The high-frequency inverter be connected with AC-DC converter, is converted to high-frequency alternating current for direct voltage AC-DC converter changed;
With the transmitting coil that high-frequency inverter connects and with transmitting coil the corresponding receiving coil arranged, when high-frequency alternating current frequency for exporting at high-frequency inverter equals the natural resonance frequency of transmitting coil and receiving coil, transmitting coil and receiving coil produce electromagnetic resonance and are coupled, the electrical energy transfer of the high-frequency alternating current produced by high-frequency inverter to receiving coil, and exports high-frequency alternating current by receiving coil;
The rectification circuit be connected with receiving coil, is converted to direct voltage for the high-frequency alternating current exported by receiving coil;
The DC-DC converter be connected with rectification circuit, the direct voltage for being exported by rectification circuit is converted to the direct voltage that power consumption equipment can normally use.
2. electricity getting device according to claim 1, it is characterized in that, described high-frequency inverter adopts the controlled resonant converter topology realizing Sofe Switch, described transmitting coil is consistent with the natural resonance frequency of receiving coil, and described transmitting coil and receiving coil are all undertaken tuning by the mode of series capacitance, the resonance frequency of transmitting coil and corresponding electric capacity is made to equal the resonance frequency of receiving coil and corresponding electric capacity.
3. electricity getting device according to claim 1, is characterized in that, at least 30cm of the distance between described transmitting coil and receiving coil.
4. electricity getting device according to claim 1, is characterized in that:
Described AC-DC converter, when the voltage of the low-voltage AC that voltage transformer exports is lower, adopts uncontrollable full bridge rectifier topology, low-voltage AC is converted to the direct voltage that applicable high-frequency inverter uses;
Described AC-DC converter is when the voltage of the low-voltage AC that voltage transformer exports is higher, adopt the topology of Industrial Frequency Transformer and uncontrollable full bridge rectifier, or adopt the topology of uncontrollable full bridge rectifier and DC chopped-wave, or adopt uncontrollable full bridge rectifier to isolate the topology of DC-DC converter with band, low-voltage AC is converted to the direct voltage that applicable high-frequency inverter uses.
5. electricity getting device according to claim 1, it is characterized in that, be provided with diode between described wireless power transmission module and power consumption equipment, the cathode output end of described DC-DC converter is connected with the anode of diode, and the negative electrode of described diode is connected with the electrode input end of power consumption equipment.
6. electricity getting device according to claim 5, it is characterized in that, the negative electrode of described diode is also connected with battery and fault detection module, and described DC-DC converter, fault detection module, battery and power consumption equipment are altogether, wherein, described battery is used for when ultra-high-tension power transmission line is out of order or wireless power transmission module is out of order and makes wireless power transmission module not export, and powers to separately fault detection module and power consumption equipment.
7. electricity getting device according to claim 6, it is characterized in that, described fault detection module comprises microprocessor and wireless signal transmitter, for the direct voltage that Real-time Collection DC-DC converter exports, receive this direct voltage by microprocessor and carry out failure diagnosis, and when direct voltage is less than voltage threshold, diagnosis ultra-high-tension power transmission line or wireless power transmission module failure, produce failure alarm signal, and failure alarm signal is sent to the monitor supervision platform of far-end by wireless signal transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761610.9U CN204290507U (en) | 2014-12-04 | 2014-12-04 | A kind of electricity getting device of ultra-high-tension power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420761610.9U CN204290507U (en) | 2014-12-04 | 2014-12-04 | A kind of electricity getting device of ultra-high-tension power transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN204290507U true CN204290507U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420761610.9U Withdrawn - After Issue CN204290507U (en) | 2014-12-04 | 2014-12-04 | A kind of electricity getting device of ultra-high-tension power transmission line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485756A (en) * | 2014-12-04 | 2015-04-01 | 珠海许继电气有限公司 | Electricity picking device for high-voltage power transmission line |
| CN111725738A (en) * | 2020-07-27 | 2020-09-29 | 国网黑龙江省电力有限公司电力科学研究院 | High-voltage line insulator electromagnetic deicing system |
-
2014
- 2014-12-04 CN CN201420761610.9U patent/CN204290507U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485756A (en) * | 2014-12-04 | 2015-04-01 | 珠海许继电气有限公司 | Electricity picking device for high-voltage power transmission line |
| CN111725738A (en) * | 2020-07-27 | 2020-09-29 | 国网黑龙江省电力有限公司电力科学研究院 | High-voltage line insulator electromagnetic deicing system |
| CN111725738B (en) * | 2020-07-27 | 2021-10-01 | 国网黑龙江省电力有限公司电力科学研究院 | High-voltage line insulator electromagnetic deicing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20170929 |