CN109617089A - A kind of reactive power compensator inhibiting function with inrush phenomenon - Google Patents
A kind of reactive power compensator inhibiting function with inrush phenomenon Download PDFInfo
- Publication number
- CN109617089A CN109617089A CN201811515013.7A CN201811515013A CN109617089A CN 109617089 A CN109617089 A CN 109617089A CN 201811515013 A CN201811515013 A CN 201811515013A CN 109617089 A CN109617089 A CN 109617089A
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- China
- Prior art keywords
- superconducting tape
- refrigerant
- thermally insulated
- insulated container
- breaker
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Classifications
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- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
-
- 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
Abstract
A kind of reactive power compensator inhibiting function with inrush phenomenon provided by the present application, including breaker, capacitor group and superconduction module, wherein superconduction module includes superconducting tape, thermally insulated container, refrigerant storage device, refrigerant, drainage tube and flow-limiting valve；Breaker, superconducting tape and capacitor group are sequentially connected in series；Refrigerant is accommodated in thermally insulated container；Superconducting tape is dipped in refrigerant；Refrigerant storage device is connected by drainage tube and flow-limiting valve with the thermally insulated container.It shoves when breaker closing generates high frequency, it is at this time more than the critical current of superconducting tape by the current amplitude that the high frequency of superconducting tape shoves, the superconducting state of superconducting tape is destroyed and is converted to normal state, the resistance value moment of superconducting tape becomes larger, the inrush phenomenon of capacitor group is inhibited by the superconducting tape of big resistance value, well solved in this way inrush phenomenon it is excessive and caused by breaker structure damage the problem of.
Description
Technical field
This application involves technical field of electric power more particularly to a kind of reactive compensation dresses for inhibiting function with inrush phenomenon
It sets.
Background technique
During Operation of Electric Systems, frequently because of the fluctuation of network load situation, to improve grid power factor, reduce humorous
Wave, burning voltage and the line loss for reducing power supply and distribution, capacitor group continually can be put into and be cut off.
However in electric system practical operation situation, transient state of capacitor group during running reactive compensation investment is existing
As will lead to inrush phenomenon, the main reason for inrush phenomenon generates is that capacitor group is in uncharged state, in combined floodgate transient flow
Condenser current is crossed only to be limited by its impedance loop, and the impedance in circuit at this time is minimum, therefore generated inrush phenomenon is managed
By above will be very big.Inrush phenomenon will damage capacitor group insulation assembly when serious, influence its service life, while can also make
Breaker structure is damaged, especially vacuum circuit breaker, it may appear that the re-breakdown phenomenon of high probability, and with idle benefit
The raising of system voltage grade is repaid, vacuum circuit breaker capacity current, which cut-offs post arc restriking probability, to be had the tendency that obviously rising.
The technical measures that limitation more commonly used at present is shoved are that reactor or auxiliary switch are sealed in capacitor loops
Power-up resistance or reactance.However, current-limiting reactor cannot be optionally combined with capacitor, the serious amplification of certain subharmonic may cause very
To resonance occurs, jeopardize the safety of device and system, the limitation simultaneous with auxiliary switch is shoved measure apparatus structure and control
Also more complicated.
Summary of the invention
This application provides a kind of reactive power compensators for inhibiting function with inrush phenomenon, to solve power supply and distribution of electric power system
In system as switched capacitor group inrush phenomenon is excessive and caused by breaker structure damage, cut-off when occur repeated breakdown probability
High technical problem.
In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical solution:
A kind of reactive power compensator inhibiting function with inrush phenomenon provided by the present application, including breaker, capacitor
Group and superconduction module, in which:
The superconduction module include superconducting tape, thermally insulated container, refrigerant storage device, refrigerant, drainage tube and
Flow-limiting valve；
The breaker, the superconducting tape and the capacitor group are sequentially connected in series；
It is accommodated in the thermally insulated container and is stated refrigerant；
The superconducting tape is dipped in the refrigerant；
The refrigerant storage device is connected by drainage tube and flow-limiting valve with the thermally insulated container.
Preferably, the superconduction module further includes pressure limiting valve, and the pressure limiting valve is set to the upper end of the thermally insulated container.
Preferably, the breaker is set as SF6Breaker or vacuum circuit breaker.
Preferably, the superconducting tape is set as NbTi, Nb3Sn、Nb3One of Al, Bi system or yttrium system.
Preferably, the capacitor group includes one or more capacitors.
Preferably, the thermally insulated container is set as cuboid-type thermally insulated container or barrel shape thermally insulated container.
Preferably, the refrigerant is set as liquid helium, liquid hydrogen or liquid nitrogen.
Compared with prior art, the application has the beneficial effect that
A kind of reactive power compensator inhibiting function with inrush phenomenon provided by the present application, including breaker, capacitor
Group and superconduction module, in which: the superconduction module includes superconducting tape, thermally insulated container, refrigerant storage device, refrigeration Jie
Matter, drainage tube and flow-limiting valve；The breaker, the superconducting tape and the capacitor group are sequentially connected in series；The insulation
Container contents, which are received, the refrigerant；The superconducting tape is dipped in the refrigerant；The refrigerant storage device
It is connected by the drainage tube and the flow-limiting valve with the thermally insulated container.Wherein, breaker is used for the switching of capacitor group,
Superconducting tape is used for the inrush phenomenon that suppression capacitor group switching generates, and capacitor group is situated between for reactive compensation in route, refrigeration
Matter storage device can inject refrigerant, flow-limiting valve is for controlling for storing refrigerant by drainage tube into thermally insulated container
Can refrigerant storage device processed inject refrigerant into thermally insulated container；Specifically, when breaker closing generates high frequency
It shoves, is at this time more than the critical current of superconducting tape by the current amplitude that the high frequency of superconducting tape shoves, superconducting tape surpasses
Lead that state is destroyed and is converted to normal state, the resistance value moment of superconducting tape becomes larger, and the inrush phenomenon of capacitor group is by big resistance value
Superconducting tape is inhibited, well solved in this way as switched capacitor group inrush phenomenon is excessive and caused by breaker structure
The probability of repeated breakdown high technical problem occurs when damaging, cut-offfing；After capacitor group investment completes transient process, in superconducting tape
By running current, current amplitude is less than the critical current of superconducting tape, cooling effect of the superconducting tape in refrigerant
Under revert to superconducting state, substitutional resistance is about zero, can be realized the loss-free transmission of electrical energy.It should be understood that above one
As description and following detailed description be only it is exemplary and explanatory, the application can not be limited.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of structural schematic diagram of reactive power compensator for inhibiting function with inrush phenomenon provided by the present application.
Description of symbols: 1- breaker, 2- superconducting tape, 3- capacitor group, 4- thermally insulated container, 5- pressure limiting valve, 6- system
Cold medium storage device, 7- refrigerant, 8- drainage tube, 9- flow-limiting valve.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the common skill in this field
The application protection all should belong in art personnel every other embodiment obtained without making creative work
Range.
In electric system practical operation situation, transition effect meeting of capacitor group during running reactive compensation investment
Lead to inrush phenomenon, the main reason for inrush phenomenon generates is that capacitor group be in uncharged state, flows through electricity in combined floodgate moment
Condenser current only receives the limitation of its impedance loop, and the impedance in circuit at this time is minimum, therefore generated inrush phenomenon is theoretically
It will be very big.Inrush phenomenon will damage capacitor group insulation assembly when serious, influence its service life, while can also make vacuum
Breaker structure is damaged, and the re-breakdown phenomenon of high probability occurs.
This application provides a kind of reactive power compensators for inhibiting function with inrush phenomenon, mainly draw superconduction module
Enter in the inhibition of inrush phenomenon, including breaker 1, capacitor group 3 and superconduction module, specific structure refers to Fig. 1, and Fig. 1 is this Shen
A kind of reactive power compensator for inhibiting function with inrush phenomenon that please be provide, in which:
Breaker 1 is used for the switching of capacitor group, and capacitor group 3 is for reactive compensation in route, and superconducting tape 2 is for pressing down
The inrush phenomenon that 3 switching of capacitor group processed generates.
The superconduction module includes superconducting tape 2, thermally insulated container 4, refrigerant storage device 6, refrigerant 7, drainage
Pipe 8 and flow-limiting valve 9；The breaker 1, the superconducting tape 2 and the capacitor group 3 are sequentially connected in series；The insulation is held
It is accommodated in device 4 and is stated refrigerant 7；The superconducting tape 2 is dipped in the refrigerant 7；The refrigerant storage dress
6 are set to be connected by the drainage tube 8 and flow-limiting valve 9 with the thermally insulated container 4.System is stored in refrigerant storage device 6
Cold medium injects refrigerant into thermally insulated container 4 by drainage tube 8, and flow-limiting valve 9 is for controlling refrigerant storage device 6
Refrigerant 7 can be injected into thermally insulated container 4.
It generates high frequency when breaker 1 closes a floodgate and shoves, be more than by the current amplitude that the high frequency of superconducting tape 2 shoves at this time
The superconducting state of the critical current of superconducting tape 2, superconducting tape 2 is destroyed and is converted to normal state, the resistance value moment of superconducting tape 2
Become larger, the inrush phenomenon of capacitor group 3 is inhibited by the superconducting tape 2 of big resistance value, has been well solved in this way due to switching electricity
Container combination lock shove it is excessive and caused by breaker structure damage, the probability of repeated breakdown high technical problem occurs when cut-offfing；
After the investment of capacitor group 3 completes transient process, by running current in superconducting tape 2, current amplitude is less than superconducting tape 2
Critical current, superconducting tape 2 reverts to superconducting state under the cooling effect of refrigerant 7, and substitutional resistance is about zero, Neng Goushi
Existing the loss-free transmission of electrical energy.
Since inrush phenomenon is excessive and the heat insulating function of heat release and thermally insulated container 4 so that 7 temperature of refrigerant sharply on
It rises, part refrigerant 7 gasifies after reaching boiling point, when refrigerant 7 cannot cool down super well since gasification tails off
When conduction band material, flow-limiting valve 9 is opened at this time, and refrigerant storage device 6 injects refrigerant into thermally insulated container 4, and injection is completed
Flow-limiting valve 9 is closed afterwards.
Since inrush phenomenon is excessive and the heat insulating function of heat release and thermally insulated container 4 so that 7 temperature of refrigerant sharply on
It rising, part refrigerant 7 gasifies after reaching boiling point, so that pressure increase in thermally insulated container 4, therefore superconduction mould described herein
Block further includes pressure limiting valve 5, and the pressure limiting valve 5 is set to the upper end of the thermally insulated container 4；When the pressure in thermally insulated container 4 reaches limit
After the upper limit air pressure of pressure valve 5, the gas vent of pressure limiting valve 5 is started to work to reduce the air pressure in thermally insulated container 4, prevents thermally insulated container
4 burst because air pressure is excessive.
Specifically, the breaker 1 is set as SF6Breaker or vacuum circuit breaker.
Specifically, the superconducting tape 2 is set as NbTi, Nb3Sn、Nb3One of Al, Bi system or yttrium system；Superconducting tape 2
Though and its superconducting structure is common structure, is that there have been no by the inhibition that superconducting tape and its superconducting structure are used for inrush phenomenon
's.
Specifically, the capacitor group 3 includes one or more capacitors；It can be connected in series between multiple capacitors
It can be connected in parallel, the connection type between specific ground capacitor number and capacitor is determined according to reactive compensation capacity.
Specifically, the thermally insulated container 4 is set as cuboid-type thermally insulated container or barrel shape thermally insulated container, certain thermally insulated container 4
It is not limited only to cuboid-type or barrel shape, also can choose other more preferably shapes.
The refrigerant 7 is set as liquid helium, liquid hydrogen or liquid nitrogen, and refrigerant storage device 6 stores refrigerant 7, having
The cooling temperature according to needed for superconducting tape 2 may be selected but be not limited to liquid helium, liquid hydrogen or liquid nitrogen in body operation process.
Since embodiment of above is that reference combination is illustrated on other modes, have between different embodiments
There is identical part, identical, similar part may refer to each other between each embodiment in this specification.Herein no longer in detail
It illustrates.
Those skilled in the art will readily occur to its of the application after considering specification and practicing the disclosure invented here
His embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are wanted by right
The content asked is pointed out.
Above-described the application embodiment does not constitute the restriction to the application protection scope.
Claims (7)
1. a kind of reactive power compensator for inhibiting function with inrush phenomenon, which is characterized in that including breaker (1), capacitor
Group (3) and superconduction module, in which:
The superconduction module include superconducting tape (2), thermally insulated container (4), refrigerant storage device (6), refrigerant (7),
Drainage tube (8) and flow-limiting valve (9)；
The breaker (1), the superconducting tape (2) and the capacitor group (3) are sequentially connected in series；
It is accommodated in the thermally insulated container (4) and is stated refrigerant (7)；
The superconducting tape (2) is dipped in the refrigerant (7)；
The refrigerant storage device (6) is connected by the drainage tube (8) and flow-limiting valve (9) with the thermally insulated container (4)
It connects.
2. reactive power compensator according to claim 1, which is characterized in that the superconduction module further includes pressure limiting valve (5),
The pressure limiting valve (5) is set to the upper end of the thermally insulated container (4).
3. reactive power compensator according to claim 1, which is characterized in that the breaker (1) is set as SF6Breaker or
Vacuum circuit breaker.
4. reactive power compensator according to claim 1, which is characterized in that superconducting tape (2) material be set as NbTi,
Nb3Sn、Nb3One of Al, Bi system or yttrium system.
5. reactive power compensator according to claim 1, which is characterized in that the capacitor group (3) includes one or more
A capacitor.
6. reactive power compensator according to claim 1, which is characterized in that the thermally insulated container (4) is set as cuboid-type
Thermally insulated container or barrel shape thermally insulated container.
7. reactive power compensator according to claim 1, which is characterized in that the refrigerant (7) is set as liquid helium, liquid hydrogen
Or liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515013.7A CN109617089A (en) | 2018-12-12 | 2018-12-12 | A kind of reactive power compensator inhibiting function with inrush phenomenon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515013.7A CN109617089A (en) | 2018-12-12 | 2018-12-12 | A kind of reactive power compensator inhibiting function with inrush phenomenon |
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| Publication Number | Publication Date |
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| CN109617089A true CN109617089A (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811515013.7A Pending CN109617089A (en) | 2018-12-12 | 2018-12-12 | A kind of reactive power compensator inhibiting function with inrush phenomenon |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098085A (en) * | 2019-04-17 | 2019-08-06 | 西安交通大学 | Superconducting current-limiting liquid nitrogen switch combined electrical appliance and its working method |
| CN113000083A (en) * | 2019-12-18 | 2021-06-22 | 帝肯贸易股份公司 | Pipetting device and method |
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| CN103956718A (en) * | 2014-03-03 | 2014-07-30 | 西安交通大学 | Novel DC superconductive current limiter and DC circuit breaker |
| KR20150139277A (en) * | 2014-06-03 | 2015-12-11 | 숭실대학교산학협력단 | Superconducting fault current limiter for protrcting power system and circuit breaker system including the same |
| CN106782995A (en) * | 2016-12-30 | 2017-05-31 | 浙江大学 | The jetting type high-temperature superconductor cooling device and method of a kind of pressure differential |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01198223A (en) * | 1988-02-01 | 1989-08-09 | Toshiba Corp | Protective device for capacitor |
| CN2251794Y (en) * | 1995-11-17 | 1997-04-09 | 天水秦城长城电器厂 | Charging surge arrester for ac contactor |
| CN101882499A (en) * | 2010-06-25 | 2010-11-10 | 宜兴市万盛变压器有限公司 | Magnetic valve type controllable reactor |
| CN103956718A (en) * | 2014-03-03 | 2014-07-30 | 西安交通大学 | Novel DC superconductive current limiter and DC circuit breaker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098085A (en) * | 2019-04-17 | 2019-08-06 | 西安交通大学 | Superconducting current-limiting liquid nitrogen switch combined electrical appliance and its working method |
| CN110098085B (en) * | 2019-04-17 | 2020-05-15 | 西安交通大学 | Superconducting current-limiting liquid nitrogen switch combined electrical apparatus and working method thereof |
| CN113000083A (en) * | 2019-12-18 | 2021-06-22 | 帝肯贸易股份公司 | Pipetting device and method |
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Application publication date: 20190412 |