CN106786434A - A kind of superconductive failure current limiter - Google Patents
A kind of superconductive failure current limiter Download PDFInfo
- Publication number
- CN106786434A CN106786434A CN201611008727.XA CN201611008727A CN106786434A CN 106786434 A CN106786434 A CN 106786434A CN 201611008727 A CN201611008727 A CN 201611008727A CN 106786434 A CN106786434 A CN 106786434A
- Authority
- CN
- China
- Prior art keywords
- current
- resonant capacitor
- limiting reactor
- parallel
- current limiter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/023—Current limitation using superconducting elements
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of superconductive failure current limiter; including the resonant capacitor that current-limiting reactor and the current-limiting reactor are in series; arrester, high-speed eddy switch and the intelligent protection control system being in parallel with the resonant capacitor; the intelligent protection control system includes the bidirectional triode thyristor at the two ends for being connected in parallel on resonant capacitor, and the inductance being in series with the bidirectional triode thyristor.It is simple structure of the present invention, esy to use, safe and reliable, can effective limiting short-circuit current intensity, greatly reduce impact of the short circuit current to electrical equipment, while user's terminal voltage is ensured, zero loss of current-limiting reactor can be realized again.
Description
Technical field
The present invention relates to electric power system power distribution equipment current limiting technique field, and in particular to a kind of superconductive failure current limiter.
Background technology
With expanding economy and the sharp increase of electric load, the increase of net capacity, the short circuit current pair for constantly increasing
The impact of power system electrical equipment is increasing；Meanwhile, the connecting-disconnecting function of existing breaker be difficult to satisfaction cut-off it is huge
Short circuit current.Therefore to solve this great difficult problem, the mode that current-limiting reactor is concatenated in loop is widely used in power train
In system electrical power trans mission/distribution system.Though current-limiting reactor series connection in the loop can limiting short-circuit current intensity, reduce short circuit current to electric power
The impact of electrical equipment in system, and maintain busbar voltage, it is to avoid the further expansion of short trouble.But series connection current-limiting reactor
Device but has many weak points, first, produces huge reactive loss also to be caused very to user in current-limiting reactor series loop
Big financial burden；Secondly, when the reactance value of current-limiting reactor is chosen, often there is the requirement for meeting limiting short-circuit current
Afterwards, under rated current user terminal brownout contradiction.During the long distance delivery of power system transmission and distribution network, transmission line of electricity
Also induction reactance can be produced, the reactor in a kind of stealthy, potential concatenation user load loop has substantially equally been formd, equally
The reduction of user terminal voltage is caused, while there is larger reactive loss again.
The content of the invention
It is an object of the invention to provide a kind of superconductive failure current limiter, can effective limiting short-circuit current intensity, significantly
Reduce impact of the short circuit current to electrical equipment, while user's terminal voltage is ensured, the zero of current-limiting reactor can be realized again
Loss.
To achieve the above object, present invention employs following technical scheme：
A kind of superconductive failure current limiter, including the resonant capacitor that current-limiting reactor and the current-limiting reactor are in series, with institute
State arrester, high-speed eddy switch and intelligent protection control system that resonant capacitor is in parallel, the intelligent protection control system
System includes the bidirectional triode thyristor at the two ends for being connected in parallel on resonant capacitor, and the inductance being in series with the bidirectional triode thyristor.
As the further improvement of above-mentioned technical proposal：
Also include electric discharge damping protection system, the electric discharge damping protection system includes current limliting damper and zinc oxide nonlinear electricity
Resistance, the input of the current limliting damper is connected with the end of incoming cables of the resonant capacitor, and its output end passes through zinc oxide non-thread
Property resistance is connected with the leading-out terminal of the resonant capacitor.
The current limliting damper is in parallel and is constituted by inductance L and resistance R.
The high-speed eddy switch is vacuum extinction formula breaker.
As shown from the above technical solution, simple structure of the present invention, esy to use, safe and reliable, relative to directly in loop
Middle concatenation current-limiting reactor has very big beneficial effect, is switched by bidirectional triode thyristor and high-speed eddy and realized to resonant capacitor
Duplicate protection, while avoiding resonant capacitance because of excessive pressure damages, it is ensured that current-limiting reactor can effective limiting short-circuit current
Intensity, reduce impact of the short circuit current to electrical equipment in power system, and maintain busbar voltage, it is to avoid short trouble enters
One step expands.When discharge prevention system high current occurs for circuit, after resonant capacitor is shorted, in release resonant capacitor
Electric energy, it is ensured that resonant capacitor can permanently effective safe operation.
Brief description of the drawings
Fig. 1 is electrical schematic diagram of the invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, the superconductive failure current limiter of the present embodiment, including current-limiting reactor 1 and current-limiting reactor 1 are in series
Resonant capacitor 3, arrester 7, the high-speed eddy switch 5, intelligent protection control system being in parallel with resonant capacitor 3 and electric discharge
Damping protection system, intelligent protection control system include be connected in parallel on resonant capacitor 3 two ends bidirectional triode thyristor 2, and with it is double
The inductance 8 being in series to controllable silicon 2.Electric discharge damping protection system includes current limliting damper 6 and znr 4,
The input of current limliting damper 6 is connected with the end of incoming cables of resonant capacitor 3, its output end by znr 4 with
The leading-out terminal of resonant capacitor 3 is connected, and high-speed eddy switch 5 is vacuum extinction formula breaker.
In the present embodiment, current limliting damper 6 is in parallel and is constituted by inductance L and resistance R.The current limliting damper 6, for limiting
Electric energy release dash current, prevents resonant capacitor 3 from being damaged due to excessively stream after the protection of the short circuit of resonant capacitor 3.The zinc oxide
Nonlinear resistance 4, can be after the protection of resonant capacitor short circuit, the rapid electric energy for absorbing resonant capacitor release, it is ensured that humorous
The terminal voltage of capacitor 3 of shaking is controlled in load rated safety range of operation, it is ensured that the safety fortune that resonant capacitor 3 can be permanently effective
OK.So the both end voltage of resonant capacitor 3 can be limited in a relatively low level, the capacity of such resonant capacitor 3 can be with
Greatly reduction, its cost can be greatly reduced naturally, while the volume of equipment has obtained effective control, the whole series can be greatly reduced
Equipment manufacturing cost, enables current-limiting reactor 1 to be widely used in power system.
In the present embodiment, arrester 7 is used to limit system overvoltage, prevents overvoltage from producing damage to equipment.High speed whirlpool
Stream switch 5 controls it to cut-off by the controller in power distribution cabinet.When outlet short trouble in circuit, controller is immediately
Control high-speed eddy switch closes a floodgate, so as to prevent resonant capacitor 3 from being damaged because of overvoltage, while ensureing the energy of current-limiting reactor 1
The intensity of limiting short-circuit current in enough sufficiently fast concatenation loops.This example high speed vortex switch is driven for vortex, and vacuum is gone out
Arc chamber arc extinguishing breaker.
Operation principle is as follows：When be short-circuited failure when, the terminal voltage of resonant capacitor 3 exceed can two-way control silicon 2 turn on
During voltage, the bidirectional triode thyristor 2 is turned on immediately, so as to the short circuit of resonant capacitor 3, prevent resonant capacitor 3 because of overvoltage
Damage, while ensureing the intensity of limiting short-circuit current in the concatenation loop that current-limiting reactor 1 can be sufficiently fast；Work as resonant capacitor
After 3 are protected, electric discharge damping protection system is discharged resonant capacitor 3 immediately, the electric energy in release resonant capacitor 3；When double
When the electric current passed through to controllable silicon 2 is less than freewheel current, bidirectional triode thyristor 2 disconnects immediately, and now high-speed eddy switch 5 closes a floodgate,
The resonant capacitor 3 is by high-speed eddy switch protection；After short trouble cuts off, when line current returns to normal value, controller
Separating brake order is sent, high-speed eddy switchs 5 separating brakes, resonant capacitor 3 is put into circuit and run, constituted with current-limiting reactor 1 and gone here and there
Connection resonance, while user's terminal voltage is both ensured, can realize zero loss of current-limiting reactor 1 again.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (4)
1. a kind of superconductive failure current limiter, it is characterised in that：Including current-limiting reactor（1）With the current-limiting reactor（1）Mutually go here and there
The resonant capacitor of connection（3）, with the resonant capacitor（3）The arrester being in parallel（7）, high-speed eddy switch（5）And intelligence
Protection control system, the intelligent protection control system includes being connected in parallel on resonant capacitor（3）Two ends bidirectional triode thyristor
（2）, and with the bidirectional triode thyristor（2）The inductance being in series（8）.
2. superconductive failure current limiter according to claim 1, it is characterised in that：Also include electric discharge damping protection system, institute
Stating electric discharge damping protection system includes current limliting damper（6）And znr（4）, the current limliting damper（6）'s
Input and the resonant capacitor（3）End of incoming cables be connected, its output end pass through znr（4）It is humorous with described
Shake capacitor（3）Leading-out terminal be connected.
3. superconductive failure current limiter according to claim 2, it is characterised in that：The current limliting damper（6）By inductance L and
Resistance R is in parallel composition.
4. superconductive failure current limiter according to claim 1, it is characterised in that：The high-speed eddy switch（5）It is vacuum
Arc extinguishing type breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008727.XA CN106786434A (en) | 2016-11-16 | 2016-11-16 | A kind of superconductive failure current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008727.XA CN106786434A (en) | 2016-11-16 | 2016-11-16 | A kind of superconductive failure current limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106786434A true CN106786434A (en) | 2017-05-31 |
Family
ID=58969329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611008727.XA Pending CN106786434A (en) | 2016-11-16 | 2016-11-16 | A kind of superconductive failure current limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106786434A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199361A (en) * | 2018-02-05 | 2018-06-22 | 安徽徽电科技股份有限公司 | A kind of high pressure self-shield string mends current limiting system |
| CN108418192A (en) * | 2018-02-05 | 2018-08-17 | 全球能源互联网研究院有限公司 | A kind of direct current limiter and its control method for coordinating with dc circuit breaker |
| CN109193597A (en) * | 2018-08-02 | 2019-01-11 | 中国电力科学研究院有限公司 | A kind of high-temperature superconductor direct current limiter for direct current system short trouble |
| CN113629682A (en) * | 2021-09-10 | 2021-11-09 | 国网辽宁省电力有限公司辽阳供电公司 | High-temperature superconducting current limiter with double-split reactor parallel resonance and current limiting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151779A (en) * | 2011-12-06 | 2013-06-12 | 邯郸市恒山通用电气有限公司 | Serial-parallel mixed type filtering and protecting device of passive power |
| CN204905874U (en) * | 2015-08-26 | 2015-12-23 | 安徽徽电科技股份有限公司 | Well high voltage electric network distributing type cascade compensation system |
| CN105743069A (en) * | 2016-04-20 | 2016-07-06 | 安徽尚途电力保护设备有限公司 | Series resonance zero-loss current limiting device |
| CN105790227A (en) * | 2016-04-20 | 2016-07-20 | 安徽伊格瑞德电气设备有限公司 | Series compensation zero-loss current limiting integrated system |
| CN205595772U (en) * | 2016-04-20 | 2016-09-21 | 安徽尚途电力保护设备有限公司 | Series resonance zero loss current limiting device |
-
2016
- 2016-11-16 CN CN201611008727.XA patent/CN106786434A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151779A (en) * | 2011-12-06 | 2013-06-12 | 邯郸市恒山通用电气有限公司 | Serial-parallel mixed type filtering and protecting device of passive power |
| CN204905874U (en) * | 2015-08-26 | 2015-12-23 | 安徽徽电科技股份有限公司 | Well high voltage electric network distributing type cascade compensation system |
| CN105743069A (en) * | 2016-04-20 | 2016-07-06 | 安徽尚途电力保护设备有限公司 | Series resonance zero-loss current limiting device |
| CN105790227A (en) * | 2016-04-20 | 2016-07-20 | 安徽伊格瑞德电气设备有限公司 | Series compensation zero-loss current limiting integrated system |
| CN205595772U (en) * | 2016-04-20 | 2016-09-21 | 安徽尚途电力保护设备有限公司 | Series resonance zero loss current limiting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199361A (en) * | 2018-02-05 | 2018-06-22 | 安徽徽电科技股份有限公司 | A kind of high pressure self-shield string mends current limiting system |
| CN108418192A (en) * | 2018-02-05 | 2018-08-17 | 全球能源互联网研究院有限公司 | A kind of direct current limiter and its control method for coordinating with dc circuit breaker |
| CN109193597A (en) * | 2018-08-02 | 2019-01-11 | 中国电力科学研究院有限公司 | A kind of high-temperature superconductor direct current limiter for direct current system short trouble |
| CN113629682A (en) * | 2021-09-10 | 2021-11-09 | 国网辽宁省电力有限公司辽阳供电公司 | High-temperature superconducting current limiter with double-split reactor parallel resonance and current limiting method |
| CN113629682B (en) * | 2021-09-10 | 2023-07-21 | 国网辽宁省电力有限公司辽阳供电公司 | High-temperature superconductive current limiter with parallel resonance of double split reactors and current limiting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018076431A1 (en) | Short-circuit failure current limiter | |
| CN106786434A (en) | A kind of superconductive failure current limiter | |
| CN105119299B (en) | A kind of mesohigh power network distributed serial compensation system | |
| WO2013163853A1 (en) | Reactor-type short circuit fault current limiter | |
| CN106099938A (en) | A kind of high-voltage fence series compensation device | |
| CN105790227A (en) | Series compensation zero-loss current limiting integrated system | |
| CN108766830B (en) | Coupling type high-voltage direct-current breaker | |
| CN204333938U (en) | A kind of short circuit current restriction and protective device | |
| CN204333943U (en) | A kind of multi-objective short-circuit Fault Current Limiting Device | |
| WO2015081615A1 (en) | Direct-current circuit breaker | |
| CN206332444U (en) | A kind of LC series resonances current-limiting apparatus | |
| CN210430911U (en) | Direct current breaker | |
| CN106786435A (en) | A kind of short trouble current-limiting apparatus | |
| CN106786442A (en) | A kind of LC series resonances current-limiting apparatus | |
| CN105743069A (en) | Series resonance zero-loss current limiting device | |
| CN205724855U (en) | A kind of series compensation zero is lost current limliting integral system | |
| CN105958501A (en) | Adjustable series-wound compensation apparatus for high-voltage power grid | |
| CN206533122U (en) | A kind of high-voltage and current-limitation device based on current limliting zinc oxide FR | |
| CN205595772U (en) | Series resonance zero loss current limiting device | |
| CN106972502A (en) | A kind of series capacitor segmented compensation device | |
| CN205945069U (en) | High voltage electric network cascade compensation device | |
| CN205693360U (en) | The distributed serial of a kind of duplicate protection compensates system | |
| CN111614068A (en) | Bidirectional cut-off current-limiting type hybrid direct current breaker | |
| CN206517068U (en) | A kind of adjustable serial compensation system | |
| CN206533126U (en) | A kind of self-shield current-limiting apparatus based on Fast Switch with Large Capacity FSR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |