CN207117188U - A kind of circuit series compensation structure - Google Patents
A kind of circuit series compensation structure Download PDFInfo
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- CN207117188U CN207117188U CN201720847099.8U CN201720847099U CN207117188U CN 207117188 U CN207117188 U CN 207117188U CN 201720847099 U CN201720847099 U CN 201720847099U CN 207117188 U CN207117188 U CN 207117188U
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- circuit
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- series
- compensation
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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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Abstract
The utility model provides a kind of circuit series compensation structure, disconnecting switch is provided with major loop circuit, it is characterized in that the circuit series compensation structure has breaker, principal reactance device, adjustable compensation circuit, the breaker, principal reactance device are connected into bypass loop, adjustable compensation circuit is in parallel with bypass loop, and is parallel to the both ends of the disconnecting switch of major loop circuit again；The adjustable compensation circuit has one or more base units, one or more controllable adjustment units being connected in series.Because using the technical solution of the utility model, transmission line of electricity has 3 paths at compensation, and reliability is high, and supplementing structure circuit is simple, and cost is relatively low, and capacity can adjust.
Description
Technical field
A kind of circuit series compensation structure is the utility model is related to, belongs to hair field of power transmission.
Background technology
Power circuit series compensation is by directly changing the equiva lent impedance and voltage NATURAL DISTRIBUTION characteristic of circuit, so as to adjust
CURRENT DISTRIBUTION, improve the voltage of high-power long distance power transmission and the purpose of reactive power distribution to reach, using wide in power system
It is general.But the existing big multicapacity of series compensation device is unadjustable, can not real-time tracking electric power system tide change, and can
The series compensation device of regulation is costly, and reliability is low, is of limited application.It is wide thus to study a kind of adjustable range, reliably
The high series compensation structure of property, has practical value.
Utility model content
The technical problems to be solved in the utility model is：For above-mentioned problem, there is provided reliability is high, cost compared with
It is low, the adjustable circuit series compensation structure of capacity.Therefore, the utility model uses following technical scheme：
A kind of circuit series compensation structure, disconnecting switch is provided with major loop circuit, it is characterised in that the circuit string
Connection collocation structure has breaker, principal reactance device, adjustable compensation circuit, and the breaker, principal reactance device are connected into and bypassed back
Road, adjustable compensation circuit is in parallel with bypass loop, and is parallel to the both ends of the disconnecting switch of major loop circuit again；It is described
Adjustable compensation circuit has one or more base units, one or more controllable adjustment units being connected in series.
Further, base unit is also contained in the adjustable unit and controls power switch and reactance entirely containing inverse parallel
Device, the inverse parallel are controlled in parallel with the base unit in adjustable unit again after power switch is connected with reactor entirely.
Further, the insulated gate bipolar crystal that power switch can be two inverse parallel connections is controlled in the inverse parallel entirely
Pipe IGBT OR gate pole cut-offs type IGCT GTO or integrated gate commutated thyristor IGCT.
Further, the base unit sets electric capacity and lightning rod in parallel.
Further, adjustable compensation circuit is in parallel with bypass loop, then passes through one group of disconnecting switch again（81、82）And
It is linked to the disconnecting switch of major loop circuit（1）Both ends.
Because using the technical solution of the utility model, transmission line of electricity has 3 paths at compensation, and reliability is high, and
Supplementing structure circuit is simple, and cost is relatively low, and capacity can adjust.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model.
Embodiment
Referring to the drawings.A kind of circuit series compensation structure provided by the utility model, there is disconnecting switch 1, principal reactance
Power switch 5, small reactor 6, arrester 7 are controlled in device 2, breaker 3, capacitor 4, inverse parallel entirely.The disconnecting switch 1 is series at
In transmission line of electricity 100.Capacitor 4 and arrester 7 the formation base unit in parallel；The inverse parallel control full power switch 5 with
Small reactor 6 is in parallel with a base unit again after connecting to form a controllable adjustment unit, small reactor and principal reactance device phase
Than capacity and small volume, small reactor are installed at principal reactance device neutral point.The principal reactance device 2 is connected structure with breaker 3
Into bypass loop.After some base units and controllable adjustment the unit series connection, in parallel with bypass loop, both ends pass through one respectively
Group disconnecting switch 81,82 is connected in parallel to major loop.
The IGBT or GTO or IGCT that power switch can be two inverse parallel connections are controlled in the inverse parallel entirely.
The controllable adjustment unit can control power switch dutycycle entirely by adjusting inverse parallel and reach dynamic regulation unit
Equivalent capacity.
When transmitted power is larger, breaker 3 disconnects, and the loop of disconnecting switch 1 disconnects, and circuit passes through base unit and controllable
Run after adjustment unit compensation.Under minimum operational mode, controllable adjustment unit equivalent capacity is adjusted to minimum, is run in maximum
Under mode, controllable adjustment unit equivalent capacity is adjusted to maximum, and the capacity of controllable adjustment unit is by circuit minimax operation side
The difference power of formula determines.
When circuit zero load or when base unit, controllable adjustment unit overhaul, breaker 3 disconnects, and line disconnecting switch 1 closes
Close.When outlet failure in base unit, the operation of controllable adjustment unit, breaker 3, which closes, to be bypassed.
Described above is not limitation of the utility model, and the utility model is also not limited to the example above, this technology neck
The those of ordinary skill in domain, in the scope of the utility model, the change made, change addition or replace, should all belong to this practicality
New protection domain.
Claims (5)
1. a kind of circuit series compensation structure, disconnecting switch is provided with major loop circuit（1）, it is characterised in that the circuit string
Connection collocation structure has breaker（3）, principal reactance device（2）, adjustable compensation circuit, the breaker（3）, principal reactance device（2）
Bypass loop is connected into, adjustable compensation circuit is in parallel with bypass loop, and is parallel to the described of major loop circuit again and keeps apart
Close（1）Both ends；The adjustable compensation circuit has one or more base units, one or more the controllable tune being connected in series
Save unit.
2. a kind of circuit series compensation structure as claimed in claim 1, it is characterised in that also contain in the adjustable unit
Base unit simultaneously controls power switch entirely containing inverse parallel（5）With reactor（6）, the inverse parallel controls power switch entirely（5）With electricity
Anti- device（6）It is in parallel with the base unit in adjustable unit again after series connection.
3. a kind of circuit series compensation structure as claimed in claim 1, it is characterised in that the base unit sets in parallel
Electric capacity（4）And lightning rod（7）.
4. a kind of circuit series compensation structure as claimed in claim 1, it is characterised in that adjustable compensation circuit is with bypassing back
Road is in parallel, then passes through one group of disconnecting switch again（81、82）It is parallel to the disconnecting switch of major loop circuit（1）Both ends.
5. a kind of circuit series compensation structure as claimed in claim 2, it is characterised in that power switch is controlled in the inverse parallel entirely
Can be the insulated gate bipolar transistor IGBT OR gate pole cut-off type IGCT GTO or integral gate of two inverse parallel connections
Commutated thyristor IGCT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847099.8U CN207117188U (en) | 2017-07-13 | 2017-07-13 | A kind of circuit series compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847099.8U CN207117188U (en) | 2017-07-13 | 2017-07-13 | A kind of circuit series compensation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207117188U true CN207117188U (en) | 2018-03-16 |
Family
ID=61583706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720847099.8U Active CN207117188U (en) | 2017-07-13 | 2017-07-13 | A kind of circuit series compensation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207117188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463802A (en) * | 2020-03-27 | 2020-07-28 | 国网浙江省电力有限公司嘉兴供电公司 | Segmented controllable series reactor device and distribution line voltage control method thereof |
| CN113346510A (en) * | 2021-02-04 | 2021-09-03 | 许继集团有限公司 | Controllable reactive power compensation device topology based on IGCT and control method thereof |
-
2017
- 2017-07-13 CN CN201720847099.8U patent/CN207117188U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463802A (en) * | 2020-03-27 | 2020-07-28 | 国网浙江省电力有限公司嘉兴供电公司 | Segmented controllable series reactor device and distribution line voltage control method thereof |
| CN113346510A (en) * | 2021-02-04 | 2021-09-03 | 许继集团有限公司 | Controllable reactive power compensation device topology based on IGCT and control method thereof |
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