CN108493954A - A kind of micro- auxiliary switching-in system of shoving of shunt capacitor - Google Patents
A kind of micro- auxiliary switching-in system of shoving of shunt capacitor Download PDFInfo
- Publication number
- CN108493954A CN108493954A CN201810422267.8A CN201810422267A CN108493954A CN 108493954 A CN108493954 A CN 108493954A CN 201810422267 A CN201810422267 A CN 201810422267A CN 108493954 A CN108493954 A CN 108493954A
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- Prior art keywords
- breaker
- capacitor
- controller
- spark gap
- incoming cables
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- 239000003990 capacitor Substances 0.000 title claims abstract description 36
- 210000004899 c-terminal region Anatomy 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000006378 damage Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
-
- 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
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of micro- auxiliary switching-in systems of shoving of shunt capacitor, including spark gap GPA, transformer T and controller ZK；The end of incoming cables of the spark gap GPA is connected with the end of incoming cables of breaker K, the leading-out terminal of spark gap GPA is connected with the leading-out terminal of breaker K, the trigger electrode of spark gap GPA is connected with the first output terminals A end of controller ZK, and the cathode of spark gap GPA is connected with the ends second output terminal B of controller ZK；The input terminal of the transformer T is connected with the end of incoming cables of spark gap GPA, and the output end of transformer T is connected with the input terminal C-terminal of controller ZK.The present invention has many advantages, such as simple in structure, safe and reliable, contact of breaker is not closed and is connected before pre-arcing in paralleling compensating device, capacitor C inrush phenomenons can be decreased to 2.1 times or so of rated current, precision is connected at us grades, effectively solves the influence that inrush phenomenon generates power grid and equipment operation.
Description
Technical field
The present invention relates to inrush phenomenon suppression technology field, the micro- auxiliary switching-in system of shoving of especially a kind of shunt capacitor
System.
Background technology
Shunt capacitor will produce the problems such as inrush phenomenon, amplification higher hamonic wave when putting into, band is run to power grid and equipment
Carry out prodigious negative effect.Currently, there are mainly three types of the methods that shunt capacitor inrush phenomenon inhibits：1. passing through current-limiting reactor
Method inhibits inrush phenomenon；2. inhibiting inrush phenomenon by resistors in series method；3. being pressed down by breaker timesharing split-phase method
Inrush phenomenon processed.These three methods have the shortcomings that obvious：1. the defect of current-limiting reactor method：A, it can only will close a floodgate
Inrush current limiting still has power grid prodigious harm to 5~6 times of rated current；B, reactor seals in circuit for a long time, electric energy damage
Loss-rate is larger；2. the defect of resistors in series method：Inrush phenomenon impact is become into inrush phenomenon impact twice, is not subtracted
Harm of the small inrush phenomenon to power grid and equipment；3. switching the defect of timesharing split-phase method:A, current power operation regulation is prohibited
Only this timesharing split-phase that can lead to open-phase operation operates；B, high (ms grades) to the required precision of line-breaker combined floodgate；C, pre-
Electric discharge can not solve.
Invention content
The purpose of the present invention is to provide it is a kind of shunt capacitor is put into when the inrush phenomenon that occurs be decreased to specified electricity
2.1 times or so of stream, are not closed and in advance by timesharing individual-phase control spark gap GPA contact of breaker in paralleling compensating device
Conducting before electric discharge, combined floodgate precision can effectively solve the influence that capacitor inrush phenomenon generates power grid and equipment operation at us grades
The micro- auxiliary switching-in system of shoving of shunt capacitor.
To achieve the above object, present invention employs following technical schemes：A kind of micro- auxiliary switching-in that shoves of shunt capacitor
System includes for the spark gap GPA of auxiliary circuit breaker K combined floodgates, for system voltage signal to be passed to controller ZK
Transformer T and controller ZK；The end of incoming cables of the spark gap GPA is connected with the end of incoming cables of breaker K, spark gap GPA's
Leading-out terminal is connected with the leading-out terminal of breaker K, and the trigger electrode of spark gap GPA is connected with the first output terminals A end of controller ZK,
The cathode of spark gap GPA is connected with the ends second output terminal B of controller ZK；The input terminal and spark gap of the transformer T
The end of incoming cables of GPA is connected, and the output end of transformer T is connected with the input terminal C-terminal of controller ZK；The controller ZK receives disconnected
Road device K closes a floodgate after order, the GPA conductings of timesharing individual-phase control spark gap.
Power transmission line parallel-connection connects in the end of incoming cables of the breaker K and power grid, leading-out terminal and the capacitor C of breaker K
End of incoming cables be connected, the leading-out terminal of capacitor C ground connection, breaker K and capacitor C collectively constitute paralleling compensating device.
The paralleling compensating device is existing reactive power compensator in power grid, includes being moved back for controlling capacitor C throwings
The breaker K and capacitor C for providing reactive-load compensation, wherein capacitor C have two kinds of connections of Y and Δ type.
As shown from the above technical solution, beneficial effects of the present invention are：The present invention has simple in structure, safe and reliable etc. excellent
Point, contact of breaker is not closed and is connected before pre-arcing in paralleling compensating device, can capacitor C inrush phenomenons be decreased to volume
2.1 times or so of constant current, conducting precision effectively solve the influence that inrush phenomenon generates power grid and equipment operation at us grades.
Description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of micro- auxiliary switching-in system of shoving of shunt capacitor, includes closing a floodgate for auxiliary circuit breaker K
Spark gap GPA, the transformer T for system voltage signal to be passed to controller ZK and controller ZK；The spark gap
The end of incoming cables of GPA is connected with the end of incoming cables of breaker K, and the leading-out terminal of spark gap GPA is connected with the leading-out terminal of breaker K, fire
The trigger electrode of flower clearance G PA is connected with the first output terminals A end of controller ZK, and the cathode of spark gap GPA is with controller ZK's
The ends second output terminal B are connected；The input terminal of the transformer T is connected with the end of incoming cables of spark gap GPA, the output of transformer T
End is connected with the input terminal C-terminal of controller ZK；After the controller ZK receives breaker K combined floodgate orders, timesharing individual-phase control
Spark gap GPA conductings.
As shown in Figure 1, power transmission line parallel-connection connects in the end of incoming cables of the breaker K and power grid, the leading-out terminal of breaker K
It is connected with the end of incoming cables of capacitor C, the leading-out terminal ground connection of capacitor C, breaker K and capacitor C collectively constitute shunt compensation dress
Set 1.The paralleling compensating device 1 is existing reactive power compensator in power grid, includes throwing the open circuit moved back for controlling capacitor C
The device K and capacitor C for providing reactive-load compensation, wherein capacitor C have two kinds of connections of Y and Δ type.
Working principle of the present invention is as follows：Controller ZK receives the combined floodgate order of breaker K in paralleling compensating device 1
Afterwards, by timesharing individual-phase control spark gap GPA, breaker K contacts do not close in paralleling compensating device 1 and pre-arcing is leading
It is logical, effectively solve the influence that capacitor inrush phenomenon generates power grid and equipment operation.
In conclusion the present invention have many advantages, such as it is simple in structure, safe and reliable, in paralleling compensating device 1 breaker touch
Head is not closed and is connected before pre-arcing, and capacitor C inrush phenomenons can be decreased to 2.1 times or so of rated current, and precision is connected
At us grades, the influence that inrush phenomenon generates power grid and equipment operation is effectively solved.
Claims (3)
1. a kind of micro- auxiliary switching-in system of shoving of shunt capacitor, it is characterised in that：It include the fire to close a floodgate for auxiliary circuit breaker K
Flower clearance G PA, transformer T and controller ZK for system voltage signal to be passed to controller ZK；The spark gap GPA
End of incoming cables be connected with the end of incoming cables of breaker K, the leading-out terminal of spark gap GPA is connected with the leading-out terminal of breaker K, between spark
The trigger electrode of gap GPA is connected with the first output terminals A end of controller ZK, the cathode of spark gap GPA and the second of controller ZK
The ends output end B are connected；The input terminal of the transformer T is connected with the end of incoming cables of spark gap GPA, the output end of transformer T with
The input terminal C-terminal of controller ZK is connected；After the controller ZK receives breaker K combined floodgate orders, timesharing individual-phase control spark
Clearance G PA conductings.
2. the micro- auxiliary switching-in system of shoving of shunt capacitor according to claim 1, it is characterised in that：The breaker K
End of incoming cables and power grid in power transmission line parallel-connection connect, the leading-out terminal of breaker K is connected with the end of incoming cables of capacitor C, capacitor C
Leading-out terminal ground connection, breaker K and capacitor C collectively constitute paralleling compensating device（1）.
3. the micro- auxiliary switching-in system of shoving of shunt capacitor according to claim 2, it is characterised in that：The shunt compensation
Device（1）Include that capacitor C throws the breaker K moved back and offer is idle for controlling for existing reactive power compensator in power grid
The capacitor C of compensation, wherein capacitor C have two kinds of connections of Y and Δ type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422267.8A CN108493954B (en) | 2018-05-04 | 2018-05-04 | Micro-inrush current auxiliary closing system for parallel capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422267.8A CN108493954B (en) | 2018-05-04 | 2018-05-04 | Micro-inrush current auxiliary closing system for parallel capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108493954A true CN108493954A (en) | 2018-09-04 |
| CN108493954B CN108493954B (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810422267.8A Active CN108493954B (en) | 2018-05-04 | 2018-05-04 | Micro-inrush current auxiliary closing system for parallel capacitor |
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| Country | Link |
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| CN (1) | CN108493954B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994551A (en) * | 2019-11-26 | 2020-04-10 | 国网宁夏电力有限公司电力科学研究院 | Excitation inrush current suppression device and method for transformer |
| CN111541230A (en) * | 2020-04-20 | 2020-08-14 | 国网新疆电力有限公司塔城供电公司 | Inrush current overvoltage treatment device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656456U (en) * | 2010-03-12 | 2010-11-24 | 华东电力试验研究院有限公司 | Supergrid short-circuit current limiting device |
| US20110316433A1 (en) * | 2009-03-06 | 2011-12-29 | Martin Hinow | Switching spark gap |
| CN103746385A (en) * | 2013-12-18 | 2014-04-23 | 国网河南省电力公司平顶山供电公司 | Series-connected capacitor compensation device and method used for power distribution network |
| CN104242136A (en) * | 2014-09-09 | 2014-12-24 | 李品德 | Power distribution device set with inrush current inhibition function and control method of power distribution device set |
| CN206807013U (en) * | 2017-02-17 | 2017-12-26 | 天津富瑞福莱科技发展有限公司 | A kind of electric capacitor no-flashy-flow switching circuit |
-
2018
- 2018-05-04 CN CN201810422267.8A patent/CN108493954B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110316433A1 (en) * | 2009-03-06 | 2011-12-29 | Martin Hinow | Switching spark gap |
| CN201656456U (en) * | 2010-03-12 | 2010-11-24 | 华东电力试验研究院有限公司 | Supergrid short-circuit current limiting device |
| CN103746385A (en) * | 2013-12-18 | 2014-04-23 | 国网河南省电力公司平顶山供电公司 | Series-connected capacitor compensation device and method used for power distribution network |
| CN104242136A (en) * | 2014-09-09 | 2014-12-24 | 李品德 | Power distribution device set with inrush current inhibition function and control method of power distribution device set |
| CN206807013U (en) * | 2017-02-17 | 2017-12-26 | 天津富瑞福莱科技发展有限公司 | A kind of electric capacitor no-flashy-flow switching circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994551A (en) * | 2019-11-26 | 2020-04-10 | 国网宁夏电力有限公司电力科学研究院 | Excitation inrush current suppression device and method for transformer |
| CN111541230A (en) * | 2020-04-20 | 2020-08-14 | 国网新疆电力有限公司塔城供电公司 | Inrush current overvoltage treatment device and method |
| CN111541230B (en) * | 2020-04-20 | 2022-04-19 | 国网新疆电力有限公司塔城供电公司 | Inrush current overvoltage treatment device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108493954B (en) | 2024-02-23 |
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