CN108155001A - A kind of air gap Quick regulation type controllable current limiting reactor - Google Patents
A kind of air gap Quick regulation type controllable current limiting reactor Download PDFInfo
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- CN108155001A CN108155001A CN201810039784.7A CN201810039784A CN108155001A CN 108155001 A CN108155001 A CN 108155001A CN 201810039784 A CN201810039784 A CN 201810039784A CN 108155001 A CN108155001 A CN 108155001A
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- reactor
- iron core
- air gap
- core
- dynamic iron
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
- H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
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- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of air gap Quick regulation type controllable current limiting reactor device, rapid repulsion mechanism, connecting rod, pillar, dynamic iron core, fixed core and reactor winding.The rapid repulsion mechanism is connected by the connecting rod with the dynamic iron core, the rapid repulsion mechanism is fixedly mounted on by pillar on the fixed core, the upper end of the fixed core is provided with and moves the notch of iron core shape cooperation, the reactor winding, which is wrapped on the fixed core, forms reactor, and the outlet of the reactor winding is reactor outlet；The dynamic iron core moves in the notch of the fixed core that iron core of electric reactor circuit air gap is smaller at this time under the drive of the rapid repulsion mechanism, and reactor is in high impedance status；The dynamic iron core moves to outside notch under the drive of the rapid repulsion mechanism out of the fixed core notch that iron core of electric reactor circuit air gap becomes larger at this time, and reactor is in low impedance state.
Description
Technical field
The present invention relates to high-tension circuit engineering device technique fields more particularly to a kind of air gap Quick regulation type controllable current limiting reactor to fill
It puts.
Background technology
With industry and the increase of electricity consumption of resident, the capacity of short circuit of electric system is increasing, corresponding maximum short circuit
Electric current is also increasing, and even more than standard provides.This is to the short circuit current tolerance of system equipment and cut-offfing for breaker
The huge pressure that ability generates, it is therefore desirable to which the circuit exceeded to short circuit current carries out current limliting, breaks down to prevent locking system
When to system equipment generate impact, avoid breaker failure of interruption.Fault current limiting is generally using circuit series connection current limliting at present
Reactor uses fault current limiter (Fault Current Limiter, FCL).Series connection current-limiting reactor can effectively drop
Low fault current peak value, but since reactor will be connected in system always, very big damage can be generated in system normal operation
Consumption and voltage drop, while very big influence is caused to relay protection setting etc..The main purpose of fault current limiter is in failure electricity
Stream rises to the rapid impedance for improving faulty line before high value, so as to reduce the peak value of fault current to be conducive to cut-off.
It generally can be divided into superconduction type, power electronics type, economical and mixed type.(1) superconduction type FCL can realize under high voltages detection,
Conversion and the integration of current limliting, can respond in several milliseconds, and so as to fault current limiting, but superconductor technology is not mature enough at present,
Application industrially is restricted, energy consumption is big at runtime；(2) power electronics type FCL points are solid-state version, mode of resonance and series compensation
Type, control rapid flexible, Flexible AC transmission system (FACTS) control for being easily achieved integrated multi, but cost is very
It is high；(3) economical FCL is easy, cheap, loss is small, reliability is high, Electro Magnetic Compatibility is good, fuel factor ability is strong, need not separately set after
Electric protection restores automatically after automatic quick input, failure removal, but is difficult to solve the series and parallel of ZnO arrester and energy-absorbing is asked
Topic；(4) mixed type FCL reduces conduction loss, and harm caused by fault electric arc is effectively suppressed, cost that but its structure is complex
It is high.The current fault current limiter of comprehensive analysis can be divided into two kinds from principle, and one kind is change of current type FCL, most current limiter
All it is change of current type FCL, it is intended to achieve the purpose that current limliting by changing line construction come the big impedance of introducing of connecting, another part is
Variable impedance type FCL, it is intended to change the impedance of element being serially accessed to the circuit and achieve the purpose that current limliting.Former mode will draw
The change of current of fault current is played, in commutation course, inevitably causes overvoltage and shoves, both processing then greatly increase
The complexity of occluder configurations, while commutation circuit is also very complicated in itself, this provides for improved costs.And latter approach is then not
Need the change of current, but the rapid variation of circuit element impedance requires element to have a preferable impedance characteristic, current superconductor, just
Temperature coefficient of resistance etc. is all difficult the requirement for meeting commercial Application.
Invention content
The embodiment of the present invention provides a kind of air gap Quick regulation type controllable current limiting reactor device, to overcome failure in the prior art
Occluder configurations are complicated, energy consumption is big, high cost problem, and concrete scheme is：Including：
Rapid repulsion mechanism, connecting rod, pillar, dynamic iron core, fixed core and reactor winding；
The rapid repulsion mechanism is connected by the connecting rod with the dynamic iron core, and the rapid repulsion mechanism passes through branch
Column is fixedly mounted on the fixed core, and the upper end of the fixed core is provided with and moves the notch of iron core shape cooperation, the electricity
Anti- device coil, which is wrapped on the fixed core, forms reactor, and the outlet of the reactor winding is reactor outlet；
The dynamic iron core moves to reactance at this time in the notch of the fixed core under the drive of the rapid repulsion mechanism
Device iron core circuit air gap is smaller, and reactor is in high impedance status；The dynamic iron core under the drive of the rapid repulsion mechanism from
Notch is moved in the notch of the fixed core, and iron core of electric reactor circuit air gap becomes larger at this time outside, and reactor is in low impedance state.
Further, the dynamic iron core is one or more.
Further, when the dynamic iron core is fully inserted into the notch of the fixed core, the dynamic iron core and the fixed core
Between there are a fixed gaps.
Further, the dynamic iron core is trapezoidal dynamic iron core or Triangle iron core.
The present invention drives trapezoidal dynamic iron core high-speed motion to adjust magnetic air gap using rapid repulsion mechanism, so as to quickly change
Variable reluctance realizes the quick variation of reactor impedance.Its advantage is：
1) the iron core direction of motion is moved perpendicular to magnetic circuit, therefore electromagnetic resistance very little suffered by its direction of motion；
2) move iron core into trapezoidal, air gap with movement in vertical direction variation quickly；
3) rapid repulsion mechanism has been used so that dynamic iron core movement velocity is exceedingly fast, and reactor can quickly change impedance value.
The present invention changes reactor impedance by quickly adjusting magnetic air gap, so as to fulfill current-limiting function, avoids change of current type failure
Overvoltage of the current limiter in commutation course and shove, reduce the change of current, protection and control loop, at the same with the failure of the not change of current
Current limiter is compared, and impedance variations speed is fast, does not quench, and control is simple.The present invention is in electric system normal operation, reactance
Device air gap is very big, impedance very little, electric energy loss very little, the voltage drop very little at reactor both ends, and system and system relay are protected
The influence very little of shield；The present invention is during current limliting, and fast response time, impedance variations are steady, has just risen in fault current
When can play metering function, realize steady current limliting truly.The present invention proposes a kind of novel quick controllable
Reactor.It is a kind of variable impedance type FCL, is connected in system line.In system normal operation, impedance very little, and
When breaking down, the change of current is not needed to, impedance can just become larger rapidly so that failure does not arrive peaking also and can be limited
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of air gap Quick regulation type controllable current limiting reactor device structure diagram of the present invention；
Fig. 2 is a kind of another structure diagram of air gap Quick regulation type controllable current limiting reactor device of the invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work shall fall within the protection scope of the present invention.
A kind of air gap Quick regulation type controllable current limiting reactor device disclosed by the invention, may be used two embodiments, such as Fig. 1
Shown, the present embodiment device includes：
Rapid repulsion mechanism 101, connecting rod 102, trapezoidal dynamic iron core 103, pillar 104, fixed core 106, reactor winding
107；
The rapid repulsion mechanism 101 is connected by connecting rod 102 with trapezoidal dynamic iron core 103, is fixed by the pillar 104
On the fixed core 106；The reactor winding 107 is sleeved on the fixed core 106, forms reactor, described
The outlet of reactor winding 107 is reactor outlet.
The trapezoidal dynamic iron core 103 can quickly move to the quiet iron under the drive of the rapid repulsion mechanism 101
In the trapeze cut of the heart 106, iron core of electric reactor circuit air gap is smaller at this time, and reactor is in high impedance status；The trapezoidal dynamic iron
The heart 103 can move to notch under the drive of the rapid repulsion mechanism 101 out of the fixed core 106 trapeze cut
Outside, iron core of electric reactor circuit air gap becomes larger at this time, and reactor is in low impedance state；
Reactor tandem working of the present invention is in power circuit.During system normal operation, the rapid repulsion mechanism 101 makes
The trapezoidal dynamic iron core 103 is maintained at open position, outside the notch of open position, that is, fixed core 106, reactor at this time
Air gap is maximum, in low impedance state；When an error occurs, it is described fast by system relay equipment or the triggering of other monitoring and control equipments
Fast repulsive force mechanism 101 acts, and the trapezoidal dynamic iron core 103 is made to close a floodgate rapidly, that is, is moved in the notch of the fixed core 106
Portion, reactor air gap is minimum at this time, in high impedance status, so as to play metering function.
Fig. 2 is a kind of another structure diagram of air gap Quick regulation type controllable current limiting reactor device of the invention, as shown in Fig. 2,
The device of the present embodiment includes：
Rapid repulsion mechanism 201, connecting rod 202, trapezoidal dynamic iron core 203, pillar 204, fixed core 206, reactor winding
207th, trapezoidal dynamic iron core 208；
The rapid repulsion mechanism 201 is connected by connecting rod 202 with trapezoidal dynamic iron core 203 and trapezoidal dynamic iron core 208, is passed through
The pillar 204 is fixedly mounted on the fixed core 206；The reactor winding 207 is sleeved on the fixed core 206,
Reactor is formed, the outlet of the reactor winding 207 is reactor outlet；
The trapezoidal dynamic iron core 203 and trapezoidal dynamic iron core 208, can be fast under the drive of the rapid repulsion mechanism 201
Speed is moved in the trapeze cut of the fixed core 206, and iron core of electric reactor circuit air gap is smaller at this time, and reactor is in high impedance shape
State；The trapezoidal dynamic iron core 203 and trapezoidal dynamic iron core 208, can be from described quiet under the drive of the rapid repulsion mechanism 201
It is moved to outside notch in the trapeze cut of iron core 206, iron core of electric reactor circuit air gap becomes larger at this time, and reactor is in Low ESR shape
State；
Reactor tandem working of the present invention is in power circuit.During system normal operation, the rapid repulsion mechanism 201 makes
The trapezoidal dynamic iron core 203 and trapezoidal dynamic iron core 208 are maintained at open position, the notch of open position, that is, fixed core 206
Outside, reactor air gap is maximum at this time, in low impedance state；When an error occurs, it is controlled by system relay equipment or other monitorings
Control equipment triggers the rapid repulsion mechanism 201 and acts, and the trapezoidal dynamic iron core 203 and trapezoidal dynamic iron core 208 is made to close a floodgate rapidly,
It moves to inside the notch of the fixed core 206, reactor air gap is minimum at this time, in high impedance status, so as to play current limliting
Effect.
The present invention changes reactor impedance by quickly adjusting magnetic air gap, so as to fulfill current-limiting function, avoids and changes
It overvoltage of the flow pattern fault current limiter in commutation course and shoves, reduces the change of current, protection and control loop, while with not changing
The fault current limiter of stream is compared, and impedance variations speed is fast, does not quench, and control is simple.
A kind of air gap Quick regulation type controllable current limiting reactor device disclosed by the invention, in electric system normal operation, electricity
Anti- device air gap is very big, impedance very little, electric energy loss very little, the voltage drop very little at reactor both ends, to system and system relay
The influence very little of protection；The present invention is during current limliting, and fast response time, impedance variations are steady, on fault current just occurs
Metering function can be played when rising, realizes steady current limliting truly.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of air gap Quick regulation type controllable current limiting reactor device, which is characterized in that including：
Rapid repulsion mechanism, connecting rod, pillar, dynamic iron core, fixed core and reactor winding；
The rapid repulsion mechanism is connected by the connecting rod with the dynamic iron core, and the rapid repulsion mechanism is consolidated by pillar
On the fixed core, the upper end of the fixed core is provided with and moves the notch of iron core shape cooperation, the reactor for Dingan County
Coil, which is wrapped on the fixed core, forms reactor, and the outlet of the reactor winding is reactor outlet；
The dynamic iron core moves in the notch of the fixed core reactor iron at this time under the drive of the rapid repulsion mechanism
Heart circuit air gap is smaller, and reactor is in high impedance status；The dynamic iron core is under the drive of the rapid repulsion mechanism from described
Notch is moved in the notch of fixed core, and iron core of electric reactor circuit air gap becomes larger at this time outside, and reactor is in low impedance state.
2. a kind of air gap Quick regulation type controllable current limiting reactor device according to claim 1, it is further characterized in that：It is described dynamic
Iron core is one or more.
3. a kind of air gap Quick regulation type controllable current limiting reactor device according to claim 1, it is further characterized in that：It is described dynamic
When iron core is fully inserted into the notch of the fixed core, there are a fixed gaps between the dynamic iron core and the fixed core.
4. a kind of air gap Quick regulation type controllable current limiting reactor device according to claim 1, it is further characterized in that：It is described dynamic
Iron core is trapezoidal dynamic iron core or Triangle iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039784.7A CN108155001A (en) | 2018-01-16 | 2018-01-16 | A kind of air gap Quick regulation type controllable current limiting reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039784.7A CN108155001A (en) | 2018-01-16 | 2018-01-16 | A kind of air gap Quick regulation type controllable current limiting reactor |
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| Publication Number | Publication Date |
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| CN108155001A true CN108155001A (en) | 2018-06-12 |
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| CN201810039784.7A Pending CN108155001A (en) | 2018-01-16 | 2018-01-16 | A kind of air gap Quick regulation type controllable current limiting reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449904A (en) * | 2018-12-17 | 2019-03-08 | 南方电网科学研究院有限责任公司 | Rotary variable current limiter and rotary variable impedance current limiting device |
| CN114884040A (en) * | 2022-06-07 | 2022-08-09 | 中国南方电网有限责任公司超高压输电公司广州局 | Fault current limiter and optimization method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2390065C1 (en) * | 2008-11-26 | 2010-05-20 | Зихерман Михаил Хаимович | Smoothly adjustable arc-suppression coil |
| CN102360734A (en) * | 2011-09-19 | 2012-02-22 | 李景禄 | Intelligent wedged smoothly adjustable reactor |
| CN203351390U (en) * | 2013-07-05 | 2013-12-18 | 武汉伏特克电气工程有限公司 | Mechanical-adjusting adjustable reactor |
| CN203733601U (en) * | 2014-03-25 | 2014-07-23 | 哈尔滨理工大学 | Double-magnetic-core adjustable reactor |
| CN203910418U (en) * | 2014-05-13 | 2014-10-29 | 江苏省电力公司南京供电公司 | Adjustable-power type electric reactor |
| CN104319086A (en) * | 2014-10-21 | 2015-01-28 | 国家电网公司 | Air gap type voltage regulating device |
| CN105679507A (en) * | 2016-03-30 | 2016-06-15 | 许继集团有限公司 | Instantaneous adjustable electric reactance current limiting reactor |
| CN104992826B (en) * | 2015-07-21 | 2017-04-05 | 华北电力大学（保定） | Rotating disc type adjustable parameter line series reactor |
-
2018
- 2018-01-16 CN CN201810039784.7A patent/CN108155001A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2390065C1 (en) * | 2008-11-26 | 2010-05-20 | Зихерман Михаил Хаимович | Smoothly adjustable arc-suppression coil |
| CN102360734A (en) * | 2011-09-19 | 2012-02-22 | 李景禄 | Intelligent wedged smoothly adjustable reactor |
| CN203351390U (en) * | 2013-07-05 | 2013-12-18 | 武汉伏特克电气工程有限公司 | Mechanical-adjusting adjustable reactor |
| CN203733601U (en) * | 2014-03-25 | 2014-07-23 | 哈尔滨理工大学 | Double-magnetic-core adjustable reactor |
| CN203910418U (en) * | 2014-05-13 | 2014-10-29 | 江苏省电力公司南京供电公司 | Adjustable-power type electric reactor |
| CN104319086A (en) * | 2014-10-21 | 2015-01-28 | 国家电网公司 | Air gap type voltage regulating device |
| CN104992826B (en) * | 2015-07-21 | 2017-04-05 | 华北电力大学（保定） | Rotating disc type adjustable parameter line series reactor |
| CN105679507A (en) * | 2016-03-30 | 2016-06-15 | 许继集团有限公司 | Instantaneous adjustable electric reactance current limiting reactor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449904A (en) * | 2018-12-17 | 2019-03-08 | 南方电网科学研究院有限责任公司 | Rotary variable current limiter and rotary variable impedance current limiting device |
| CN109449904B (en) * | 2018-12-17 | 2024-02-13 | 南方电网科学研究院有限责任公司 | Rotary variable current limiter and rotary variable impedance current limiting device |
| CN114884040A (en) * | 2022-06-07 | 2022-08-09 | 中国南方电网有限责任公司超高压输电公司广州局 | Fault current limiter and optimization method thereof |
| CN114884040B (en) * | 2022-06-07 | 2024-05-28 | 中国南方电网有限责任公司超高压输电公司广州局 | Fault current limiter and optimization method thereof |
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Application publication date: 20180612 |