CN105024368B - A kind of priming device and system of the fault current limiter of 110 kilovoltage grade - Google Patents
A kind of priming device and system of the fault current limiter of 110 kilovoltage grade Download PDFInfo
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- CN105024368B CN105024368B CN201410168666.8A CN201410168666A CN105024368B CN 105024368 B CN105024368 B CN 105024368B CN 201410168666 A CN201410168666 A CN 201410168666A CN 105024368 B CN105024368 B CN 105024368B
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- 230000037452 priming Effects 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 33
- 239000010703 silicon Substances 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 33
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 230000001052 transient effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 238000002955 isolation Methods 0.000 abstract description 8
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 230000005288 electromagnetic effect Effects 0.000 abstract description 2
- 239000002360 explosive Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
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- 238000004880 explosion Methods 0.000 description 5
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- 238000011161 development Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
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- 239000007769 metal material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
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- 238000002161 passivation Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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Abstract
The present invention provides the priming device and system of a kind of fault current limiter of 110 kilovoltage grades, device includes：First photoelectric converter, the second photoelectric converter, silicon-controlled, storage capacitor and fault current limiter, fault current limiter is in series by multiple high-voltage current pontics, first photoelectric converter is connected by optical fiber with the second photoelectric converter, second photoelectric converter is connected with silicon-controlled, and silicon-controlled, storage capacitor and fault current limiter are connected into a closed circuit；The open circuit control signal received is converted to optical signal by the first photoelectric converter, and pass through optical fiber for optical signal transmission to the second photoelectric converter, second photoelectric converter converts optical signals to electric signal, silicon-controlled to receive electric signal triggering and conducting closed circuit, storage capacitor discharges firer's component interrupting short circuit that electricity ignites high-voltage current pontic.High-low pressure zone isolation is avoided electromagnetic effect problem by the present invention, proposes a kind of method of ignition small in size, realization difficulty is small.
Description
Technical field
The present invention relates to power technologies, are concretely a kind of detonations of the fault current limiter of 110 kilovoltage grades
Apparatus and system.
Background technique
Currently, with the rapid development of the national economy, power system capacity and scale constantly expand, distributed power generation resource
A large amount of accesses, so that grid short circuit electric current is increasing, the problem of being induced by it, is gradually highlighted.On the one hand, grid short circuit electric current
Increase, cause electrical equipment (such as breaker and disconnecting switch) Breaking capacity in power grid gradually with the capacity of short circuit of system not
The rupturing capacity of matching, breaker and other equipment and short-circuit dynamic stability are not able to satisfy system requirements, however are replaced
For the breaker with bigger Breaking capacity, manufacture difficulty is big, and cost is very high, is not that one kind is economically viable, is generally applicable in
Method.On the other hand, the opening time of general breaker is 20~150ms, and full switch off time at least needs a few tens of milliseconds, and
The peak-peak of fault current tends to occur at the first half-wave, peak value of short electric power caused by hair, transformer equipment and
The impact of fuel factor is very big, and to the anti-short circuit capabilities of the equipment such as generator, transformer, more stringent requirements are proposed, through accounting system
The maximum tolerance short circuit current design value of interior existing some transformers cannot be met the requirements.Therefore, system short-circuit electric current has been limited
The major issue urgently to be resolved as one.
Fault current limiter (fault current limiter) is a kind of device of quick fault current limiting, when movement
Between within 5ms, early in the fifties, foreign countries are just formed product (the Is- quick current-limiting device of ABB AB), and the seventies is at home and abroad
Start in document it is a large amount of occur, but being really taken seriously with fast development is after flexible ac transmission technology proposition, from close
The fault current limiter of maturity with higher and practicability is using explosion switch and limiting fuse from the point of view of development in 10 years
The blended learning composed in parallel, and only had obtained relatively broad application at present in 10kV system.
110kV is a mains voltage grade of China's power grid, and sharply increasing with electric load, and 110kV is short
Road electric current is also increasing, and the accident that deformation of transformer winding damage occurs under short-circuit current rush is commonplace.At present
Conventional current-limiting method is to use series connection current-limiting reactor, although the technology can play the role of certain limiting short-circuit current,
But the harm of short circuit current can not be fundamentally solved, while can also bring under direct active loss, band burden with power ability
The unfavorable factors such as drop, busbar voltage drop, magnetic flux leakage.Since 110kV voltage gradation is high, compared with the current limiting technique of 10kV system,
Technology and technique etc. are both needed to redesign, especially in terms of detonating technique.In addition, the electric current of 110kV voltage class is cut-off
Spacing is very big, with current high-voltage current pontic technology, realizes that difficulty is very big using single high-voltage current pontic, and safety and
Reliability is difficult to ensure.
Summary of the invention
It is wanted to solve the condition that existing related detonating technique is unable to satisfy the explosive fault current limiter of 110kV grade
It asks, a kind of applicable, reliable explosive fault current limiter of 110kV is provided.
The present invention provides a kind of priming device of the fault current limiter of 110 kilovoltage grades, device includes：First
Photoelectric converter, the second photoelectric converter, silicon-controlled, storage capacitor and fault current limiter, fault current limiter is by multiple high
Ballast stream pontic is in series, and first photoelectric converter is connected by optical fiber with second photoelectric converter, described
The second photoelectric converter be connected with silicon-controlled, the described silicon-controlled, storage capacitor and fault current limiter are connected into one and close
Close circuit；
The open circuit control signal received is converted to optical signal by first photoelectric converter, and passes through optical fiber for institute
Optical signal transmission is stated to second photoelectric converter, the optical signal is converted to electric signal by the second photoelectric converter, described
Silicon-controlled to receive closed circuit described in electric signal triggering and conducting, storage capacitor release electricity ignites the high-voltage current pontic
Firer's component interrupting short circuit.
Preferably, the priming device in the embodiment of the present invention further includes：
Photovoltaic charger is connected with the storage capacitor, for convert light energy into electric energy be the storage capacitor into
Row charging.
Preferably, the priming device in the embodiment of the present invention further includes：
High-voltage and current-limitation fuse and voltage limiter, it is in parallel with the high-voltage current pontic respectively.
Preferably, the priming device in the embodiment of the present invention further includes：
Current-limiting reactor, it is in parallel with the high-voltage and current-limitation fuse, for being tieed up after high-voltage and current-limitation fuse fusing
Hold current conductive state.
In addition, the invention also discloses a kind of initiation system of the fault current limiter of 110 kilovoltage grades, system packet
It includes：Control unit and short circuit current limitation priming device, the control unit are used to generate fault control signal,
The short circuit current limitation priming device includes：
First photoelectric converter, the second photoelectric converter, silicon-controlled, storage capacitor and fault current limiter, described is short
Road current-limiting apparatus is in series by multiple high-voltage current pontics, and first photoelectric converter passes through optical fiber and second photoelectricity
Converter is connected, and second photoelectric converter is connected with silicon-controlled, the described silicon-controlled, storage capacitor and short circuit limit
Stream device is connected into a closed circuit；
The open circuit control signal received is converted to optical signal by first photoelectric converter, and passes through optical fiber for institute
Optical signal transmission is stated to second photoelectric converter, the optical signal is converted to electric signal by the second photoelectric converter, described
Silicon-controlled to receive closed circuit described in electric signal triggering and conducting, storage capacitor release electricity ignites the high-voltage current pontic
Firer's component interrupting short circuit.
Preferably, the fault current limiter in the embodiment of the present invention further includes：
Photovoltaic charger is connected with the storage capacitor, for convert light energy into electric energy be the storage capacitor into
Row charging.
Preferably, the fault current limiter in the embodiment of the present invention further includes：
High-voltage and current-limitation fuse and voltage limiter, it is in parallel with the high-voltage current pontic respectively.
Preferably, the fault current limiter in the embodiment of the present invention further includes：
Current-limiting reactor, it is in parallel with the high-voltage and current-limitation fuse, for being tieed up after high-voltage and current-limitation fuse fusing
Hold current conductive state.
Preferably, the system in the embodiment of the present invention further includes：
Transient current transformer detects short circuit current for 110 kilovoltages to be isolated.
The present invention solves a key technology difficulty in researching and designing 110kV voltage class fault current limiter at present
Topic, cleverly by high-low pressure zone isolation, avoids electromagnetic effect problem, propose it is a kind of it is small in size, realize that difficulty is small, practical
The feasible method of ignition can provide beneficial technological means to the application and popularization of the explosive fault current limiter of 110kV.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram of the priming device of the fault current limiter of 110 kilovoltage grades of the present invention；
Fig. 2 is a kind of schematic diagram of the priming device of the fault current limiter of 110 kilovoltage grades of the present invention；
Fig. 3 is a kind of schematic diagram of the initiation system of the fault current limiter of 110 kilovoltage grades of the present invention；
Fig. 4 is the schematic diagram of one embodiment of the invention；
Fig. 5 is the schematic diagram of one embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of priming device of the fault current limiter of 110 kilovoltage grades, dress
Set including：First photoelectric converter 101, the second photoelectric converter 102, silicon-controlled 103, storage capacitor 104 and short circuit current limitation dress
Set 105, the first photoelectric converter 101 is connected by optical fiber with the second photoelectric converter 102, the second photoelectric converter 102 and
Silicon-controlled 103 are connected, and silicon-controlled 103, storage capacitor 104 and fault current limiter 105 are connected into a closed circuit；
The open circuit control signal received is converted to optical signal by the first photoelectric converter 101, and will be described by optical fiber
For optical signal transmission to the second photoelectric converter 102, the second photoelectric converter 102 converts optical signals to electric signal, and silicon-controlled 103
Closed circuit described in electric signal triggering and conducting is received, storage capacitor discharges the high-voltage current in electricity ignition fault current limiter
Firer's component interrupting short circuit of bridge.
Meanwhile as shown in Fig. 2, priming device further includes：
Photovoltaic charger 106 is connected with storage capacitor 104, for convert light energy into electric energy be storage capacitor 104 into
Row charging.
In addition, as shown in figure 3, the invention also discloses a kind of detonations of the fault current limiter of 110 kilovoltage grades
System, system include：Control unit 201 and short circuit current limitation priming device 202, control unit 201 is for generating fault control letter
Number,
Short circuit current limitation priming device 202 includes：
First photoelectric converter 101, the second photoelectric converter 102, silicon-controlled 103, storage capacitor 104 and short circuit current limitation dress
Set 105, the first photoelectric converter 101 is connected by optical fiber with the second photoelectric converter 102, the second photoelectric converter 102 and
Silicon-controlled 103 are connected, and silicon-controlled 103, storage capacitor 104 and fault current limiter 105 are connected into a closed circuit；
The open circuit control signal received is converted to optical signal by the first photoelectric converter 101, and will be described by optical fiber
For optical signal transmission to the second photoelectric converter 102, the second photoelectric converter 102 converts optical signals to electric signal, and silicon-controlled 103
Closed circuit described in electric signal triggering and conducting is received, storage capacitor discharges the high-voltage current in electricity ignition fault current limiter
Firer's component interrupting short circuit of bridge.
In addition, the system further includes transient current transformer 203, short circuit current is detected for 110 kilovoltages to be isolated.
Technical solution of the present invention is described in further detail below with reference to specific embodiment：
Fig. 4 show the schematic diagram of one embodiment of the invention, including high-voltage current pontic 401, high-voltage and current-limitation fuse
402, voltage limiter 403, transient current transformer 404, control unit 405, photoelectric sensor 406, optical fiber 407, photovoltaic charger
408, energy-storage capacitor 409, silicon-controlled unit 410.The explanation of summary of the invention is carried out by taking the phase in power grid three-phase as an example below,
The summary of the invention of other phases is mutually identical as this.
110kV lead (conducting wire) is sealed in after high-voltage current pontic 401, high-voltage and current-limitation fuse 402 and voltage limiter and 403
The middle position for needing quick-speed turning on-off.
High-voltage current pontic 401 is a kind of explosive derailing switch being made by the metal material (T2 copper) of high conductivity
Part, inside are equipped with firer's component, have the characteristics that current-carrying capacity is big, explode quick action, but high current breaking capacity is very poor, because
This its effect is current-carrying under normal circumstances, fast transfer short circuit current under short-circuit conditions.It is wanted to reach 110kV cut-off distance
It asks, using multiple concatenated forms of high-voltage current pontic.Each pontic is equipped with firer's component, but due to inevitably existing in technique
Difference, acting characteristic can also have a certain difference, therefore ignite series connection firer using the ignition signal for being connected into closed circuit
Component.Explosion switch in the explosive fault current limiter of 110kV is made by pure copper material, is equipped with electronics in the middle
Firer's component, resistance is minimum when normal, has very strong current-carrying capability, and electric current all leads to from the explosion switch when usually working
It crosses, when short trouble occurs for system, explosion switch disconnects immediately, and resistance increases rapidly, and short circuit current is quickly transferred greatly
In the limiting fuse of capacity, disjunction is carried out to short circuit current by limiting fuse.
High-voltage and current-limitation fuse 402 has very strong current breaking capacity and good I/s characteristic, acts in short circuit current
Under, melt can be melted quickly, be vaporized, generates electric arc, establish arc voltage, extinguish electric arc, finally realize cut-offfing for electric current, but high pressure
Limiting fuse rated current is smaller, and current-carrying capability is limited, therefore its effect is to be not involved under normal circumstances, is opened under short-circuit conditions
Disconnected short circuit current.
The effect of voltage limiter 403 is to absorb high-voltage and current-limitation fuse to cut-off the arc energy of generation and the energy of power supply injection
Amount, makes its smooth blow-out, and overvoltage limitation when will be switched off is within the allowable range.
Current-limiting reactor 411 is accessed by the way of in parallel, for maintaining electricity after high-voltage and current-limitation fuse fusing, blow-out
On state is flowed, while playing the role of limiting short-circuit current, current-limiting reactor also may be selected not connect, then fault current limiter is dynamic
110kV lead 412 (conducting wire) disconnects after work.
Transient current transformer 404 is for being isolated 110kV high pressure, detecting short circuit current signal and accessing control unit, temporarily
State current transformer can also be substituted by conventional current mutual inductor and be used, the decaying of pulse signal existing for conventional current mutual inductor and phase
Shifting can carry out calculating compensation by control unit.Control unit is used for acquisition, calculating, judgement, the driving of short circuit current signal
And communication.Photoelectric sensor and optical fiber are used to for the control signal that control unit issues being transmitted to silicon-controlled unit, optical fiber transmission
Anti-jamming effectiveness it is good, avoid complicated high_voltage isolation.
Ignition signal is issued by control system in the embodiment of the present invention, and control system is microelectronic device, and is exploded
Switch is to apply on the major loop of electric system, therefore ignition signal has to carry out high_voltage isolation, avoids high-voltage electromagnetic dry
It disturbs and control system is impacted, lead to malfunction or tripping.It is relatively easy to realize because voltage is lower in 10kV system, one
As be to be isolated using special transient state pulse transformer.And 110kV voltage is too high, it is then very not firm using transformer isolation
Border, not only volume is big, at high cost, it is important to which signal decaying is serious, and the extremely difficult processing of electromagnetic compatibility, especially ignition signal are
One pulse transmits a pulse signal with 110kV isolating transformer, and not only signal intensity attenuation is serious, but also pulse is believed
Number waveform steepness will be weakened severely, be not able to satisfy the igniting requirement of firer's component.And the present invention is in 110kV equipotential region
Domain uses photovoltaic charger and storage capacitor to provide initiation energy for firer's component of explosive fault current limiter, passes through optical fiber
Transmission of control signals realizes the isolation between high-low pressure, entirely eliminated interference of the electromagnetic field to control signal.
Photovoltaic charger 408 is used to sunlight being converted to DC current, charges, is charged to energy-storage capacitor 409
Stop charging when setting voltage.The energy-storage capacitor 409 passes through silicon-controlled unit 410 and all high-voltage current pontic firer's components
Priming device be connected into a closed circuit.The part is in 110kV voltage equipotential region, therefore simplifies to insulation
Consider, without carrying out high_voltage isolation.
Workflow of the invention is：
When operating normally, high-voltage current pontic carries almost all operating current, high-voltage and current-limitation fuse and voltage limiter
It does not work；Sunlight is converted to DC current by photovoltaic charger, is charged to energy-storage capacitor, is stopped when being charged to setting voltage
Only charge.
When short trouble occurs in 110kV system, short circuit current is detected by transient current transformer, is transmitted to control
After unit processed is identified, control signal is issued, optical signal is converted to by photoelectric converter, is transmitted to high-pressure area through optical fiber,
Electric signal is converted to through photoelectric converter again, triggers silicon-controlled unit conducting, energy-storage capacitor discharges rapidly electricity, ignites simultaneously
High-voltage current pontic firer's component, pontic are cut-off immediately, and resistance rises rapidly, and short circuit current is transferred to high-voltage and current-limitation fuse
In, electric current is cut-off under voltage limiter collective effect.
If not using current-limiting reactor, short circuit current is disconnected；If using current-limiting reactor, short circuit current quilt
It is transferred to current-limiting reactor, short circuit current level substantially reduces.
Key problem in technology of the invention is：Use photovoltaic charger and storage capacitor for explosion in 110kV equipotential region
Firer's component of formula fault current limiter provides initiation energy, by optical fiber transmission of control signals realize between high-low pressure every
From, entirely eliminated electromagnetic field to control signal interference.
As shown in figure 5, with the 220kV of a capacity 180MVA, connecting group grade YNyn0d11 in a 220kV substation
Transformer is embodiment (only by taking the phase in power grid three-phase as an example, other are mutually mutually identical as this).Transformer medium voltage side outlet warp
Disconnecting switch, current-limiting reactor 501, breaker, disconnecting switch to middle pressure bus, explosive fault current limiter 503 and current limliting
The access in parallel of reactor 501, when normal operation, running current almost all flows through explosive fault current limiter, when occurring therefore
When barrier, explosive fault current limiter is disconnected, and short circuit current flows through current-limiting reactor 501, plays limiting short-circuit current, and protection becomes
The effect of depressor medium voltage side winding.
In the embodiment：
(1) high-voltage current pontic series connection of the explosive fault current limiter of 110kV using 8 10kV, each pontic movement
The clear distance cut-off afterwards is 120mm or more, and the clear distance after 8 series connection pontics are cut-off is up to 960mm or more, the cut-off distance
It can satisfy 110kV system and cut-off requirement.
(2) firer's component that conventional products use at present is low-tension ignition technology.Electric detonator uses exploding bridge wire, has
Ignition charge, susceptibility is very high, higher to manufacture craft and shielding measure requirement etc., and safety is relatively poor, is not easy to take care of, usually
The risk for overhauling measurement is big, and the service life is shorter, does not exceed generally 10 years.Therefore, the firer portion inside high-voltage current pontic
Part need to be using the detonator of passivation, and the sparking mode of detonator is high pressure plasma spark, and the capacitor by charging to 800V directly produces
It is raw.
(3) since more generally 10kV high-voltage and current-limitation fuse, 110kV high-voltage and current-limitation fuse need spy at present
Different customization, parameter meet voltage rating 110kV, specified drop-out current 6kA.Voltage limiter, which can be selected, will cut-off overvoltage limitation
In 2.5 times of zinc oxide valve plates below horizontal of specified phase voltage.
(4) transient current transformer can save, the secondary terminals of the side 110kV current transformer 502 directly out of substation
The number of winning the confidence, and access the acquisition port of control unit.Logic circuit and microcomputer detecting control system can be used in control unit
Mode uses DSP rapid computations module in signaling interface, and CPU uses the pic chip of U.S. Wei Xin company, realizes good
Interference free performance.Wherein logic circuit and microsystem can work independently, and microsystem is also short to logic when normal operation
Road carries out analysis management, to prevent from judging by accident, guarantees high reliability and stability, energy-storage travelling wave tube is configured in detection device, electrification is just
Phase charges, even if short-time loss of power supply occurs in device, it is ensured that device works normally in 2s.
(5) photovoltaic charger generally by solar photovoltaic cell panel and voltage and current detection circuit, charging circuit, overcharge guarantor
Protection circuit composition, 80~100W of power export 800V voltage.Using voltage rating 800V, the electrolytic capacitor of capacity 1nF is carried out
Energy storage, silicon-controlled unit use high-pressure thyristor, light-operated high-pressure thyristor can also be used, then high-pressure area fibre-optic terminus not
Photoelectric converter is connect, light-operated high-pressure thyristor is directly accessed.
As grid short circuit levels of current is increasing, at present to safe and reliable, energy saving effective 110kV in power industry
Voltage class short circuit current method for limiting and device propose increasing demand, and the exploration that conducts a research in this respect at present
Mechanism and enterprise it is still less, also rarely have relevant technological achievement.It is proposed of the invention solves at present in researching and designing
Key technology difficulty when 110kV voltage class fault current limiter avoids electricity cleverly by high-low pressure zone isolation
Magnetic influence problem, propose it is a kind of it is small in size, realize that difficulty is small, the practicable method of ignition.Therefore the present invention can give
The application and popularization of the explosive fault current limiter of 110kV provide beneficial technological means.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (6)
1. a kind of priming device of the fault current limiter of 110 kilovoltage grades, which is characterized in that the device includes：
First photoelectric converter, the second photoelectric converter, silicon-controlled, storage capacitor and fault current limiter, the short circuit current limitation dress
Set it is in series by multiple high-voltage current pontics, first photoelectric converter pass through optical fiber and the second photoelectric converter phase
Connection, second photoelectric converter is connected with silicon-controlled, the described silicon-controlled, storage capacitor and fault current limiter string
It is unified into a closed circuit；
The open circuit control signal received is converted to optical signal by first photoelectric converter, and passes through optical fiber for the light
Signal is transmitted to second photoelectric converter, and the optical signal is converted to electric signal by the second photoelectric converter, described controllable
Silicon receives closed circuit described in electric signal triggering and conducting, and storage capacitor release electricity ignites the firer of the high-voltage current pontic
Component interrupting short circuit；Wherein, the priming device further includes：
Photovoltaic charger is connected with the storage capacitor, is that the storage capacitor is filled for converting light energy into electric energy
Electricity
High-voltage and current-limitation fuse and voltage limiter, it is in parallel with the fault current limiter respectively.
2. the priming device of the fault current limiter of 110 kilovoltage grade as described in claim 1, which is characterized in that institute
The priming device stated further includes：
Current-limiting reactor, it is in parallel with the high-voltage and current-limitation fuse, for maintaining electricity after high-voltage and current-limitation fuse fusing
Flow on state.
3. a kind of initiation system of the fault current limiter of 110 kilovoltage grades, which is characterized in that the system includes：
Control unit and short circuit current limitation priming device, the control unit are used to generate fault control signal,
The fault current limiter includes：
First photoelectric converter, the second photoelectric converter, silicon-controlled, storage capacitor and fault current limiter, the short circuit limit
It is in series by multiple high-voltage current pontics to flow device, first photoelectric converter passes through optical fiber and second photoelectric conversion
Device is connected, and second photoelectric converter is connected with silicon-controlled, the described silicon-controlled, storage capacitor and short circuit current limitation dress
It sets and is connected into a closed circuit；
The open circuit control signal received is converted to optical signal by first photoelectric converter, and passes through optical fiber for the light
Signal is transmitted to second photoelectric converter, and the optical signal is converted to electric signal by the second photoelectric converter, described controllable
Silicon receives closed circuit described in electric signal triggering and conducting, and storage capacitor release electricity ignites the firer of the high-voltage current pontic
Component interrupting short circuit；Wherein, the priming device further includes：
Photovoltaic charger is connected with the storage capacitor, is that the storage capacitor is filled for converting light energy into electric energy
Electricity.
4. the initiation system of the fault current limiter of 110 kilovoltage grade as claimed in claim 3, which is characterized in that institute
The fault current limiter stated further includes：
High-voltage and current-limitation fuse and voltage limiter, it is in parallel with the fault current limiter respectively.
5. the initiation system of the fault current limiter of 110 kilovoltage grade as claimed in claim 4, which is characterized in that institute
The fault current limiter stated further includes：
Current-limiting reactor, it is in parallel with the high-voltage and current-limitation fuse, for maintaining electricity after high-voltage and current-limitation fuse fusing
Flow on state.
6. the initiation system of the fault current limiter of 110 kilovoltage grade as claimed in claim 5, which is characterized in that institute
The system stated further includes：
Transient current transformer detects short circuit current for 110 kilovoltages to be isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168666.8A CN105024368B (en) | 2014-04-24 | 2014-04-24 | A kind of priming device and system of the fault current limiter of 110 kilovoltage grade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410168666.8A CN105024368B (en) | 2014-04-24 | 2014-04-24 | A kind of priming device and system of the fault current limiter of 110 kilovoltage grade |
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| CN113098318B (en) * | 2021-05-06 | 2022-05-06 | 中国人民解放军国防科技大学 | Multi-branch delay discharge high-voltage power supply and discharge method |
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| CN1599183A (en) * | 2004-08-11 | 2005-03-23 | 天津理工大学 | Bridge superconducting current limitter control system based on DSP |
| CN101702517A (en) * | 2009-12-01 | 2010-05-05 | 宁夏电力公司电力科学研究院 | Energy-saving outdoor grid current limiting device |
| CN102222893A (en) * | 2011-06-15 | 2011-10-19 | 中电普瑞科技有限公司 | Quick fault current restrictor based on carrier isolator |
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| NO329609B1 (en) * | 2008-02-19 | 2010-11-22 | Wartsila Norway As | Electronic DC circuit breaker |
| CN203813428U (en) * | 2014-04-24 | 2014-09-03 | 国家电网公司 | Detonation device of 110kV voltage-class short circuit current limiter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599183A (en) * | 2004-08-11 | 2005-03-23 | 天津理工大学 | Bridge superconducting current limitter control system based on DSP |
| CN101702517A (en) * | 2009-12-01 | 2010-05-05 | 宁夏电力公司电力科学研究院 | Energy-saving outdoor grid current limiting device |
| CN102222893A (en) * | 2011-06-15 | 2011-10-19 | 中电普瑞科技有限公司 | Quick fault current restrictor based on carrier isolator |
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