CN206332633U - A kind of magnet controlled controllable parallel reactors - Google Patents
A kind of magnet controlled controllable parallel reactors Download PDFInfo
- Publication number
- CN206332633U CN206332633U CN201621379172.5U CN201621379172U CN206332633U CN 206332633 U CN206332633 U CN 206332633U CN 201621379172 U CN201621379172 U CN 201621379172U CN 206332633 U CN206332633 U CN 206332633U
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- Prior art keywords
- magnet controlled
- winding
- parallel reactors
- controllable parallel
- resistance
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- 238000004804 winding Methods 0.000 claims abstract description 41
- 230000005284 excitation Effects 0.000 claims abstract description 24
- 230000001447 compensatory effect Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of magnet controlled controllable parallel reactors, including body and excitation system, the body is three winding structure, including high-pressure side winding, controling winding and compensative winding；The excitation system includes the AC self-excitation magnetic system being connected with the compensative winding and the outer excitation system being connected with station with power supply, and also including rectifier output protection module, the rectifier output protection module is connected with the dc bus that rectifier is exported；The rectifier output protection module includes balance resistance, measurement resistance and arrester.The technical scheme that the utility model is provided can ensure the safety of rectifying installation, rectifier outlet side overvoltage when failure and impact is avoided to damage electrical equipment, magnet controlled controllable parallel reactors reliability of operation and security are improved, ensures that magnet controlled controllable parallel reactors have given play to the function of reactive balance, burning voltage in systems.
Description
Technical field
The utility model belongs to power system device protection field, in particular to a kind of magnet controlled controllable parallel reactance
Device.
Background technology
Controllable parallel reactors are as one of effective means for improving power system regulation and control flexibility, and its main function is solution
Certainly long range heavy-haul line over-voltage and the contradiction of reactive-load compensation, improve voltage stability level and transient state operational limit,
Circuit transport loss is reduced, balance is idle, and can effectively mitigate the pressure of management and running, is to realize super-pressure and UHV transmission
The important tool of passage high-efficiency and economic operation.The application field that controllable parallel reactors are most concentrated includes：Ultra-high/extra-high voltage is over long distances
Heavy-haul line, wind-powered electricity generation concentrate transfer passage, water power transfer passage, ultra-high/extra-high voltage compact line etc..
Magnet controlled controllable parallel reactors change saturation degree unshakable in one's determination by changing the size of DC excitation electric current, so that real
Existing reactance value and capacity are continuously adjusted.The stability and reliability of excitation system directly affect magnet controlled controllable parallel reactors
Operation in systems.Power electronic devices withstanding voltage is far below the withstanding voltage of controling winding in rectifier, if event
Barrier or thunder and lightning, switching impulse are delivered to DC side, can cause the damage of excitation system, magnet controlled controllable parallel reactors can not be just
Often operation, causes harm to system safe and stable operation.
Accordingly, it is desirable to provide a kind of magnet controlled controllable parallel reactors, can ensure rectifying installation safety, it is to avoid failure
Overvoltage damage equipment during with impact, the technical side for improving magnet controlled controllable parallel reactors reliability of operation and security
Case.
Utility model content
In order to fill up and overcome the blank and deficiency of above-mentioned prior art, the utility model provides a kind of magnet controlled controllable
Shunt reactor.
The utility model uses following technical proposals：
A kind of magnet controlled controllable parallel reactors, including body and excitation system, the body are three winding structure, including
High-pressure side winding, controling winding and compensative winding；The excitation system includes the self-excitation that AC is connected with the compensative winding
Magnetic system and the outer excitation system being connected with station with power supply, it is characterised in that the reactor includes rectifier output protection mould
Block, the rectifier output protection module is connected with the dc bus that rectifier is exported；The rectifier output protection module
Including balance resistance, measurement resistance and arrester.
Further, the excitation system includes rectification unit, and the rectification unit includes rectifier transformer and rectifier.
Further, the balance resistance is included in the resistance R connected between dc bus positive pole and negative pole1With resistance R2。
Further, the measurement resistance R0One end connection resistance R1With resistance R2Tie point, the other end ground connection.
Further, the arrester is included in the arrester 1 and arrester 2 connected between dc bus positive pole and negative pole,
The tie point of the arrester 1 and arrester 2 is directly grounded.
Further, the high-pressure side winding is directly connected with system.
Further, the compensative winding is connected with wave filter or shunt capacitor group.
Compared with immediate prior art, the utility model has the advantages that：
1st, the technical scheme that the utility model is provided changes core saturation by changing the size of DC excitation electric current, from
And realize continuously adjusting for reactance value and capacity.The stability and reliability of excitation system directly affect magnet controlled controllable electricity in parallel
The operation of anti-device in systems.Power electronic devices withstanding voltage is far below the withstanding voltage of controling winding in rectifier, if
Faulty or thunder and lightning, switching impulse are delivered to DC side, can cause the damage of excitation system, magnet controlled controllable parallel reactors are not
It can normally run, system safe and stable operation is caused harm.
2nd, the technical scheme that the utility model is provided can ensure the safety of rectifying installation, it is to avoid rectification when failure and impact
Device outlet side overvoltage damages electrical equipment, improves magnet controlled controllable parallel reactors reliability of operation and security, ensures
Magnet controlled controllable parallel reactors have given play to the function of reactive balance, burning voltage in systems.
Brief description of the drawings
Fig. 1 is magnet controlled controllable parallel reactors circuit diagram；
Fig. 2 is rectifier output protection module circuit diagram.
Embodiment
Device of the present utility model is described in further details below in conjunction with the accompanying drawings.
Magnet controlled controllable parallel reactors as shown in Figure 1, including body, excitation system and rectifier output protection mould
Block, rectifier transformer and rectifier excitation system.Body includes high-pressure side winding, controling winding and compensative winding.High pressure
Side winding is the winding that magnet controlled controllable parallel reactors are joined directly together with system.Controling winding connects the direct current of excitation system
Side, is powered by dc source, changes magnet controlled controllable parallel connection by adjusting the DC current in direct current power source voltage and winding
The magnetic saturation of iron core of electric reactor, can smoothly change the capacity of reactor output.Excitation system is independent rectification unit,
Every group of rectification unit is made up of rectifier transformer with silicon controlled rectifier.
Excitation system provides control electric current for controling winding, is divided into outer excitation system and self-excitation magnetic system.Except excitation system
System, compensative winding can connect wave filter or shunt capacitor group, on the one hand provide a system to reactive power, increase is magnet controlled can
The adjustable range of shunt reactor is controlled, the harmonic component produced in magnet controlled controllable parallel reactors work is on the other hand reduced,
Harmonic pollution of the controllable parallel reactors to system is reduced, the quality of power supply of system is improved.
System asymmetric operation can cause dc bus side to produce very big residual voltage and voltage-to-ground rise.Simultaneously
System is struck by lightning or during electrical equipment operation, is delivered to the thunder and lightning crest value of controling winding two-terminal, is delivered to controling winding
The operation crest value of two-terminal all will be up to tens of kV, and the insulation to energizing apparatus (rectifier, rectification become) constitutes a threat to, and magnetic
In the operation of control type controllable parallel reactors, the probability for thunder and lightning and switching impulse occur is much larger than various failures, therefore, need to be by thunder and lightning
With big event of the switching impulse as rectifier output protection.Meanwhile, there is the possibility of turn-to-turn fault inside controling winding
Property, if turn-to-turn fault occurs for controling winding, rectifier is still in working condition, and IGCT is turned in turn, can be female in direct current
The peak voltage of impulse form is produced on line, according to analysis, in the case of the failure of most serious, the highest electricity of positive and negative bus over the ground
Voltage crest value is more than 10kV, and the insulation to energizing apparatus (rectifier, rectification become) constitutes a threat to, it is necessary to limit DC bus-bar voltage
Under the resistance to voltage levels of energizing apparatus.
According to the protection needs of equipment, it is proposed that a kind of magnet controlled controllable high anti-rectifier output protection method, its principle
As shown in Figure 2.
Rectifier output protection element includes balance resistance, measurement resistance, arrester.Balance resistance is magnet controlled controllable
Play a part of fixed dc bus current potential in the anti-normal operation of height.The electric current of measuring resistance judges and cut as relay protection
Except the foundation of failure.Arrester, is mainly used in absorbing lightning surge and switching overvoltage；Work as in addition, arrester is also can absorb
The peak overvoltage produced during turn-to-turn short circuit occurs for controling winding, protects energizing apparatus.
The concrete configuration of protection scheme is as follows：
1) balance resistance：Resistance R is connected between dc bus positive pole and negative pole1And R2, in magnet controlled controllable high anti-normal operation
In play a part of fixed dc bus current potential.R1And R2Tie point and ground between connection measuring resistance R0, work as controling winding
Generation turn-to-turn short circuit, two post winding junction earth faults, controling winding bushing over the ground the failure such as flashover when, pass through measurement
Resistance R0On the electric current that flows through can be that relay protection judges and excision failure provides foundation；
2) dc bus positive pole and negative pole connect arrester respectively, are mainly used in absorbing lightning surge and operate electricity
Pressure；In addition, arrester, which can also absorb controling winding, occurs turn-to-turn short circuit, two post winding junctions ground connection, controling winding high pressure
The sleeve pipe peak overvoltage that the failure such as flashover is produced over the ground, lifts the reliability of thyristor protection.The action residual voltage of arrester is needed
To be engaged with the inverted repeat voltage of rectifier IGCT.
Finally it should be noted that：Above example is merely to illustrate the technical scheme of the application rather than to its protection domain
Limitation, although the application is described in detail with reference to above-described embodiment, those of ordinary skill in the art should
Understand：Those skilled in the art read after the application the embodiment of application can still be carried out a variety of changes, modification or
Person's equivalent, but these changes, modification or equivalent, within the claims that application is given special approval to.
Claims (7)
1. a kind of magnet controlled controllable parallel reactors, including body and excitation system, the body is three winding structure, including height
Press side winding, controling winding and compensative winding；The excitation system includes the self-excitation that AC is connected with the compensative winding
System and the outer excitation system being connected with station with power supply, it is characterised in that the reactor includes rectifier output protection module,
The rectifier output protection module is connected with the dc bus that rectifier is exported；The rectifier output protection module includes
Balance resistance, measurement resistance and arrester.
2. a kind of magnet controlled controllable parallel reactors as claimed in claim 1, it is characterised in that the excitation system includes whole
Unit is flowed, the rectification unit includes rectifier transformer and rectifier.
3. a kind of magnet controlled controllable parallel reactors as claimed in claim 1, it is characterised in that the balance resistance is included in
The resistance R connected between dc bus positive pole and negative pole1With resistance R2。
4. a kind of magnet controlled controllable parallel reactors as claimed in claim 1, it is characterised in that the measurement resistance R0One end
Connect resistance R1With resistance R2Tie point, the other end ground connection.
5. a kind of magnet controlled controllable parallel reactors as claimed in claim 1, it is characterised in that the arrester is included in directly
The arrester 1 and arrester 2 connected between stream bus positive pole and negative pole, the tie point of the arrester 1 and arrester 2 directly connect
Ground.
6. a kind of magnet controlled controllable parallel reactors as claimed in claim 1, it is characterised in that the high-pressure side winding is direct
It is connected with system.
7. a kind of magnet controlled controllable parallel reactors as claimed in claim 1, it is characterised in that the compensative winding and filtering
Device or the connection of shunt capacitor group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621379172.5U CN206332633U (en) | 2016-12-15 | 2016-12-15 | A kind of magnet controlled controllable parallel reactors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621379172.5U CN206332633U (en) | 2016-12-15 | 2016-12-15 | A kind of magnet controlled controllable parallel reactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206332633U true CN206332633U (en) | 2017-07-14 |
Family
ID=59289789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621379172.5U Expired - Fee Related CN206332633U (en) | 2016-12-15 | 2016-12-15 | A kind of magnet controlled controllable parallel reactors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206332633U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233802A (en) * | 2016-12-15 | 2018-06-29 | 中电普瑞科技有限公司 | A kind of magnet controlled controllable parallel reactors |
| CN110400687A (en) * | 2018-04-25 | 2019-11-01 | 特变电工沈阳变压器集团有限公司 | A kind of magnetic saturation type controllable parallel reactors of alternating current-direct current excitation |
| CN110445111A (en) * | 2019-08-02 | 2019-11-12 | 南京南瑞继保电气有限公司 | A kind of magnetic control type paralleling reactor control winding DC bus overvoltage protection system |
-
2016
- 2016-12-15 CN CN201621379172.5U patent/CN206332633U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233802A (en) * | 2016-12-15 | 2018-06-29 | 中电普瑞科技有限公司 | A kind of magnet controlled controllable parallel reactors |
| CN110400687A (en) * | 2018-04-25 | 2019-11-01 | 特变电工沈阳变压器集团有限公司 | A kind of magnetic saturation type controllable parallel reactors of alternating current-direct current excitation |
| CN110445111A (en) * | 2019-08-02 | 2019-11-12 | 南京南瑞继保电气有限公司 | A kind of magnetic control type paralleling reactor control winding DC bus overvoltage protection system |
| CN110445111B (en) * | 2019-08-02 | 2021-08-27 | 南京南瑞继保电气有限公司 | Magnetic control type shunt reactor control winding direct current bus overvoltage protection system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 |