CN101364474A - Air-actuated energizing apparatus for current mutual inductor - Google Patents
Air-actuated energizing apparatus for current mutual inductor Download PDFInfo
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- CN101364474A CN101364474A CNA2008101500038A CN200810150003A CN101364474A CN 101364474 A CN101364474 A CN 101364474A CN A2008101500038 A CNA2008101500038 A CN A2008101500038A CN 200810150003 A CN200810150003 A CN 200810150003A CN 101364474 A CN101364474 A CN 101364474A
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- insulation sleeve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a pneumatic energy supply device used for a current transformer, which comprises a DC/DC converter with the output end thereof connected with a high-pressure side signal processing unit of a photoelectric current transformer and the input end thereof connected with a wind power generation system. The wind power generation system and the DC/DC converter are both arranged inside a closed container which communicates with the upper end of a vertical double layer insulating sleeve; the double layer insulating sleeve is a completely closed insulating sleeve comprising an inner pipe, and an air power device communicating with an air inlet duct and an air outlet duct is arranged at the lower end of the double layer insulating sleeve; the air inlet duct communicates with an outer pipe which is positioned at the lower end of the double layer insulating sleeve; the air outlet duct communicates with the inner pipe which is positioned at the lower end of the double layer insulating sleeve, the pressurized air generated from the air power device is delivered to the wind power generation system in the closed container via the inner pipe, and the wind energy is converted to electric energy and outputted via the DC/DC converter; and the air power device can suck back the air from the closed container via the outer pipe, so as to circularly generate the pressurized air.
Description
Technical field
The present invention relates to a kind of power supply device, particularly a kind of on high-tension side air-actuated energizing apparatus of photoelectric current inductor that can be used for.
Background technology
Along with the development of electric power system, must higher requirement be proposed to the measurement mechanism of electric power system to high voltage, big capacity and digitlization direction.And traditional electromagnetic current transducer has magnetic saturation, ferro resonance and inflammable and explosive inherent defect, has been difficult to adapt to the requirement of electric power system fast development.The New type of current instrument transformer that with the photoelectric current inductor is representative has just become trend of the times, and photoelectric current inductor is owing to adopt the secondary treatment system isolation of optical fiber with on high-tension side signal processing unit and low-pressure side, so good reliability, certainty of measurement height.The stability of the on high-tension side power supply of photoelectric current inductor plays crucial effects for the reliability service of whole instrument transformer, and selecting suitable supply power mode is to be related to the major issue that whole instrument transformer is measured system's accuracy.
Photoelectric current inductor high-pressure side circuit energy supply at present mainly contains following three kinds of modes, and a kind of is to utilize the bus current energy-provision way (Fig. 1 a), a kind of is storage battery energy-provision way (Fig. 1 b), and another kind is laser energy-provision way (Fig. 1 c).Adopt the bus current energy supply, convenient and simple though cost is low, there is the work dead band in instrument transformer, and very difficult to the protection of power supply circuits.The mode of storage battery energy supply, simple in structure, do not need to design special electronic circuit, but the life-span of storage battery is shorter, damage easily, it is also relatively more difficult to get up on high-tension side battery altering.Utilize the laser energy supply, this method is relatively stable, but the circuit design difficulty is big, and cost is too high.And the energy intensity of laser is big, and is also big to the life consumption of optical fiber.
In addition other as supply power modes such as solar energy, wind energies therefore very unstable owing to very easily be subjected to the influence of ambient temperature, seasonal variations etc., also be in the laboratory research stage at present.Several supply power modes all exist certain technical immature, still can not satisfy service requirement fully.Therefore, how resolving active photo transmission system high-pressure side powerup issue is a generally acknowledged difficult problem that guarantees that photoelectric current inductor equipment moves reliably and with long-term.
Summary of the invention
At aforementioned existing in prior technology problem, the invention provides a kind of air-actuated energizing apparatus that is used for current transformer, it is good to have insulation property, system safety is stable, and is simple in structure, in light weight, volume is little, cost is low, and the life-span is long, can realize the safe and reliable energy supply in photoelectric current inductor high-pressure side in the power system measuring.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of air-actuated energizing apparatus that is used for current transformer, comprise the DC/DC transducer that an output is connected with photoelectric current inductor high-side signal processing unit, it is characterized in that, the input of described DC/DC transducer connects a wind-powered electricity generation conversion equipment, and this wind-powered electricity generation conversion equipment and DC/DC transducer are arranged in the closed container that is communicated with a vertical double-layer insulating sleeve upper end; Described double hyer insulation sleeve pipe is a totally-enclosed insulating sleeve that includes interior pipe, and its lower end is provided with air generation plants and is communicated with admission line and air duct; Admission line is communicated with the outer tube of double hyer insulation sleeve pipe lower end; Air duct is communicated with the interior pipe of double hyer insulation sleeve pipe lower end, and the compressed gas that air generation plants produces is delivered to wind-powered electricity generation conversion equipment in the closed container by interior pipe, wind energy is converted to electric energy exports through the DC/DC transducer; Air generation plants is drawn back gas by outer tube from closed container, circulation produces compressed gas.
In the such scheme, described wind-powered electricity generation conversion equipment is that a level is installed in the minitype wind power synchronous generator in the closed container, and its impeller is over against the interior pipe gas outlet of double hyer insulation sleeve pipe upper end.Described air generation plants comprises two minitype compressors that are symmetricly set on both sides, airtight double hyer insulation sleeve pipe lower end, and the air inlet pipe of each air compressor is connected with admission line by an air intake valve; The escape pipe of this air compressor is connected with drier, and drier connects air duct by the valve of supplying gas.The interior pipe of described double hyer insulation sleeve pipe and the connection place of air duct are provided with pressure sensor, and this pressure sensor is connected with an intelligent controller signal; This intelligent controller is connected with the control signal of each valve, minitype compressor simultaneously, controls the switching of each valve and the start and stop of minitype compressor by intelligent controller.The interior pipe gas outlet of described airtight double hyer insulation sleeve pipe upper end is equipped with nozzle.
Compare with existing photoelectric current inductor power supply device, low-pressure side of the present invention is a cover air force system fully, does not have electric circuit.By the wind-force synchronous generator, the power conversion of the compressed gas that the minitype compressor of low-pressure side is sent is an electric energy, supplies with the demand of the on high-tension side electronic circuit part of photoelectric current inductor to electric energy.Because low-pressure side and high-pressure side are not electrically connected fully, realized electrical isolation, so insulation property are good.And the air force system is positioned at low-pressure side, and maintenance, replacing all are easy to realize.Each modular construction of air-actuated energizing apparatus is all very simple, be easy to realize, and cost is very low, and working condition is stable, and no electromagnetic interference is safe and reliable.
Description of drawings
Fig. 1 is existing three kinds of photoelectric current inductor high-pressure side circuit energy-provision way schematic diagrams.Wherein: Fig. 1 a is the bus energy-provision way; Fig. 1 b is the storage battery energy-provision way; Fig. 1 c is the laser energy-provision way.
Fig. 2 is the structure chart of air-actuated energizing apparatus of the present invention.
Embodiment
Below in conjunction with drawings and Examples the technology of the present invention content is described in further detail:
With reference to Fig. 2, a kind of air-actuated energizing apparatus that is used for photoelectric current inductor comprises two cover minitype compressors 1 and 2, drier 3 and 4, air intake valve 5 and 6, supply gas valve 7 and 8.Hollow, high voltage bearing double hyer insulation sleeve pipe are all-sealed structure, vertically are installed in the middle part of whole system device, cross over high-pressure side and low-pressure side, and 9a is positioned at the part of low-pressure side for it, and 9b is positioned on high-tension side part for it.Airtight double hyer insulation sleeve pipe divides inside and outside two-layer pipe, and pipe is connected with 4 with drier 3 with 8 by the air duct 16 and the valve 7 of supplying gas in it; Its outer tube is connected with the air inlet pipe of minitype compressor 1,2 with 6 by admission line 15 and air intake valve 5.Two minitype compressor 1,2 symmetries are installed in airtight double hyer insulation sleeve pipe low-pressure side 9a outer tube two ends, and connect with drier 3 and 4 by their escape pipe respectively.These parts have been formed the air force transmission system of low-pressure side.The interior pipe of airtight double hyer insulation sleeve pipe is sent minitype compressor 1,2 by above-mentioned air force transmission system compressed gas is transferred to high-pressure side 9b from low-pressure side 9a, nozzle 12 is installed in the exit of pipe in the airtight double hyer insulation sleeve pipe high-pressure side 9b, minitype wind power synchronous generator 13 is installed directly over it, for level is installed, vertical with airtight double hyer insulation sleeve pipe.Nozzle is a wind energy with the power conversion of the compressed gas in the interior pipe, blows the impeller rotary electrification of synchronous generator 13 units, and the output of wind-force synchronous generator connects DC-DC transducer 14.Minitype compressor 1,2 by outer tube and air intake valve 5 and 6 with the gas suction.
The below of pipe and the threeway connection place of air duct 16 are equipped with pressure sensor 10 in the airtight double hyer insulation sleeve pipe low-pressure side 9a, and the control signal of pressure sensor, minitype compressor and each valve links to each other with an intelligent controller 11.
Must leave certain space around the minitype compressor 1,2, so that operating personnel's regular job, maintenance and maintenance.The necessary reliable ground of air compressor prevents to cause danger because of electric leakage.During start, must check whether in accordance with regulations direction rotation of motor, forbid the motor antiport.
Minitype wind power synchronous generator 13 can adopt direct-driving type, and the dish-type generator is brushless, does not have iron core, starts easily.The long 30cm of impeller, the hard aluminium, stainless steel strip is strengthened.Start wind speed 1.5m/s, rated voltage 12V, rated power 5W, weight only is 1.7kg.
The operation principle of apparatus of the present invention is: be example with one-sided, start minitype compressor 1, open the air intake valve 5 and the valve 7 of supplying gas.Minitype compressor 1 is sent compressed gas, and by drier 3, becomes dry air.By air duct 16, compressed gas enters the interior pipe of airtight double hyer insulation sleeve pipe, is delivered directly to high-pressure side 9b from the low-pressure side 9a of system.Nozzle 12 by the exit, high-pressure side, with the Conversion of energy of compressed gas is wind energy, blow the impeller of wind-force synchronous generator 13, wind energy is converted to power delivery gives DC-DC transducer 14, output 12V and 5V are for the on high-tension side electronic circuit part of photoelectric current inductor OCT (high-side signal processing unit) is powered.Because whole system is a full-closed structure, minitype compressor 1 is withdrawn into low-pressure side with gas again by the outer tube of airtight double hyer insulation sleeve pipe, by admission line 15 and air intake valve 5, enters the air inlet of minitype compressor 1, and circulation produces compressed gas.By regulating the exhaust pressure of minitype compressor, also can realize on high-tension side power adjustments.
Because the present invention is provided with two minitype compressors, has improved the reliability of system.Two minitype compressor one cover work, a cover is standby.Because power generation systems is positioned at low-pressure side fully, and has realized electrical isolation with the high-pressure side, so work safety, reliable, be easy to maintenance and replacing.
Claims (7)
1. air-actuated energizing apparatus that is used for current transformer, comprise the DC/DC transducer that an output is connected with photoelectric current inductor high-side signal processing unit, it is characterized in that, the input of described DC/DC transducer connects a wind-powered electricity generation conversion equipment, and this wind-powered electricity generation conversion equipment and DC/DC transducer are arranged in the closed container that is communicated with a vertical double-layer insulating sleeve upper end; Described double hyer insulation sleeve pipe is a totally-enclosed insulating sleeve that includes interior pipe, and its lower end is provided with air generation plants and is communicated with admission line and air duct; Admission line is communicated with the outer tube of double hyer insulation sleeve pipe lower end; Air duct is communicated with the interior pipe of double hyer insulation sleeve pipe lower end, and the compressed gas that air generation plants produces is delivered to wind-powered electricity generation conversion equipment in the closed container by interior pipe, wind energy is converted to electric energy exports through the DC/DC transducer; Air generation plants is drawn back gas by outer tube from closed container, circulation produces compressed gas.
2. the air-actuated energizing apparatus that is used for current transformer according to claim 1, it is characterized in that, described wind-powered electricity generation conversion equipment is that a level is installed in the minitype wind power synchronous generator in the closed container, and its impeller is over against the interior pipe gas outlet of double hyer insulation sleeve pipe upper end.
3. the air-actuated energizing apparatus that is used for current transformer according to claim 1 and 2, it is characterized in that, described air generation plants comprises two minitype compressors that are symmetricly set on both sides, airtight double hyer insulation sleeve pipe lower end, and the air inlet pipe of each air compressor is connected with admission line by an air intake valve; The escape pipe of this air compressor is connected with drier, and drier connects air duct by the valve of supplying gas.
4. the air-actuated energizing apparatus that is used for current transformer according to claim 3 is characterized in that, the interior pipe of described double hyer insulation sleeve pipe and the connection place of air duct are provided with pressure sensor, and this pressure sensor is connected with an intelligent controller signal; This intelligent controller is connected with the control signal of each valve, minitype compressor simultaneously, controls the switching of each valve and the start and stop of minitype compressor by intelligent controller.
5. the air-actuated energizing apparatus that is used for current transformer according to claim 1 and 2 is characterized in that, the interior pipe gas outlet of described airtight double hyer insulation sleeve pipe upper end is equipped with nozzle.
6. the air-actuated energizing apparatus that is used for current transformer according to claim 3 is characterized in that, the interior pipe gas outlet of described airtight double hyer insulation sleeve pipe upper end is equipped with nozzle.
7. the air-actuated energizing apparatus that is used for current transformer according to claim 4 is characterized in that, the interior pipe gas outlet of described airtight double hyer insulation sleeve pipe upper end is equipped with nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101500038A CN101364474B (en) | 2008-06-06 | 2008-06-06 | Air-actuated energizing apparatus for current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101500038A CN101364474B (en) | 2008-06-06 | 2008-06-06 | Air-actuated energizing apparatus for current mutual inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101364474A true CN101364474A (en) | 2009-02-11 |
| CN101364474B CN101364474B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101500038A Expired - Fee Related CN101364474B (en) | 2008-06-06 | 2008-06-06 | Air-actuated energizing apparatus for current mutual inductor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950659A (en) * | 2010-09-15 | 2011-01-19 | 西安交通大学 | Active photoelectric current transformer using pneumatic and inductive hybrid energy supply |
| CN102590586A (en) * | 2012-02-22 | 2012-07-18 | 西安交通大学 | Photoelectric current transformer for supplying power for transmission line insulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025143A (en) * | 2006-02-23 | 2007-08-29 | 邓小刚 | Continous-stable power-supplying wind-driven generating system |
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2008
- 2008-06-06 CN CN2008101500038A patent/CN101364474B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950659A (en) * | 2010-09-15 | 2011-01-19 | 西安交通大学 | Active photoelectric current transformer using pneumatic and inductive hybrid energy supply |
| CN101950659B (en) * | 2010-09-15 | 2012-07-04 | 西安交通大学 | Active photoelectric current transformer using pneumatic and inductive hybrid energy supply |
| CN102590586A (en) * | 2012-02-22 | 2012-07-18 | 西安交通大学 | Photoelectric current transformer for supplying power for transmission line insulator |
| CN102590586B (en) * | 2012-02-22 | 2014-04-23 | 西安交通大学 | Photoelectric current transformer for supplying power for transmission line insulator |
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| Publication number | Publication date |
|---|---|
| CN101364474B (en) | 2010-06-09 |
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Granted publication date: 20100609 Termination date: 20130606 |