CN106329532B - 3/2nds wiring patterns of four times Line Flows are controlled for UPFC - Google Patents
3/2nds wiring patterns of four times Line Flows are controlled for UPFC Download PDFInfo
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- CN106329532B CN106329532B CN201610825121.9A CN201610825121A CN106329532B CN 106329532 B CN106329532 B CN 106329532B CN 201610825121 A CN201610825121 A CN 201610825121A CN 106329532 B CN106329532 B CN 106329532B
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- upfc
- back out
- stations
- out line
- string
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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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of 3/2nds wiring patterns controlling four times Line Flows for UPFC, including two busbares and a set of UPFC, N number of string is provided between two busbares, N is not less than 6, in N number of string, the first of one of string, which returns back out line and second, returns back out line and stands with A and connect；The first of one of string returns back out line and the shunt transformer of UPFC connects, and second returns back out line connects with the stations A；The first of two of which string returns back out line and is connect with a series transformer of UPFC, and second returns back out line connects with the stations B and the stations C respectively；The first of two of which string returns back out line and is connect with another series transformer of UPFC, and second returns back out line connects with the stations B and the stations C respectively.The present invention realizes the function that a set of UPFC devices control 4 times Line Flows.
Description
Technical field
The present invention relates to a kind of 3/2nds wiring patterns controlling four times Line Flows for UPFC, power system technologies
Field.
Background technology
UPFC（Unified Power Flow Controller）, also known as " THE UPFC ", put into operation in foreign countries
Three sets, it is domestic put into operation a set of, four sets of UPFC engineerings are by 1~2 shunt transformer（And become）And series transformer（String
Become）1~2 time Line Flow is controlled, access scheme is that institute's control circuit is cut-off ring to enter the stations UPFC, four sets of UPFC electrical main connecting wires
It is all made of unit connection.It is also logical currently to carry out the Law Firm Suzhou Jiangsu southern power grid 500kV UPFC demonstration projects of previous work
1 shunt transformer, 2 series transformers 2 times Line Flows of control are crossed, electrical main connecting wire is still using unit connection.
As some areas population is more intensive, load density is constantly improve, Section Tidal Current of Power Transmission distribution is more unbalanced,
Power grid imbalance between supply and demand is more apparent, can effectively solve the problems, such as that power grid exists using UPFC.In developed regions, in fact it could happen that different
Circuit has that trend is out-of-limit under different running method, and UPFC is such as installed on every loop line road, and one comes construction condition pole
Difficulty, two build very expensive, therefore as considered on adjacent circuit through 1 set a plurality of Line Flow of UPFC devices control,
UPFC utilization rates can be then greatlyd improve, are reducingd the construction costs, power grid power supply capacity and reliability are fully improved.
The general mode of connection of existing UPFC engineerings is unit connection, if Fig. 1 is by a set of UPFC devices（1 and become,
2 strings become）Control two loop line roads（The stations the A~stations B two-wire）The typical UPFC wiring patterns of trend.But UPFC typical wiring types
Formula cannot meet the needs of system controls a plurality of Line Flow under different running method, for example the studied system wiring signals of Fig. 2
Section is studied in figure and shares the stations A~2 loop lines of the stations B, the stations the A~stations the C total 4 loop line roads of 2 loop lines, in different periods, different operation sides
Under formula, the stations the A~stations B, the stations A~stations C are respectively present the demand of power flowcontrol.Pressed UPFC typical wiring patterns as shown in Fig. 1, then
2 shunt transformers need to be set altogether, 4 series transformers amount to two sets of UPFC devices to control the trend of research section, construction
Cost is high, also extremely harsh to the requirement for building place, is difficult to realize substantially in the extremely nervous developed regions of land resource；
Simultaneously as the stations A~stations B, the stations A~C station tracks road power flowcontrol demand it is time-bounded, it is contemplated that set by typical wiring mode
The utilization ratio for the UPFC devices set is also extremely limited.
Invention content
In order to solve the above technical problem, the present invention provides it is a kind of for UPFC control four times Line Flows two/
Three wiring patterns.
In order to achieve the above object, the technical solution adopted in the present invention is：
3/2nds wiring patterns that four times Line Flows are controlled for UPFC, in electric system, the stations B and the stations C pass through institute
3/2nds wiring patterns and the connection of the stations A, including two busbares and a set of UPFC that four times Line Flows are controlled for UPFC are stated,
N number of string is provided between two busbares, N is not less than 6, and each string includes sequentially connected first side breaker, intermediate breaker
With the second side breaker, it is connected with first between first side breaker and intermediate breaker and returns back out line, second side is disconnected
It is connected with second between road device and intermediate breaker and returns back out line；In N number of string, the first of one of string returns back out line and second time
Outlet is stood with A and is connected；The first of one of string returns back out line and the shunt transformer of UPFC connects, and second returns back out line stands with A
Connection；The first of two of which string returns back out line and is connect with a series transformer of UPFC, second return back out line respectively with B station and
The connection of the stations C；The first of two of which string returns back out line and is connect with another series transformer of UPFC, second return back out line respectively with
B stands and the connection of the stations C.
The first of N number of string returns back out line close to same busbar, and the second of N number of string returns back out line close to another busbar.
The advantageous effect that the present invention is reached：The present invention realizes the function that a set of UPFC devices control 4 times Line Flows.
Description of the drawings
Fig. 1 is UPFC typical wiring patterns.
Fig. 2 is is studied system wiring schematic diagram.
Fig. 3 is UPFC access system plan schematic diagrames.
Fig. 4 is the structural schematic diagram of the present invention.
Fig. 5 in order to control stand two-wire trend mode figure by stations A~B.
Fig. 6 in order to control stand two-wire trend electric path figure by stations A~B.
Fig. 7 in order to control stand two-wire trend mode figure by stations A~C.
Fig. 8 in order to control stand two-wire trend electric path figure by stations A~C.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figures 3 and 4,3/2nds wiring patterns that UPFC controls four times Line Flows are used for, in electric system, B
It stands and the stations C is connected by 3/2nds wiring patterns for UPFC four times Line Flows of control with the stations A, specifically include two
Busbar and a set of UPFC are provided with N number of string between two busbares, and N is not less than 6, and each string includes sequentially connected first side
Breaker, intermediate breaker and the second side breaker are connected with first between the first side breaker and intermediate breaker and return back out line,
It is connected with second between second side breaker and intermediate breaker and returns back out line, the first of N number of string returns back out line close to same busbar,
The second of N number of string returns back out line close to another busbar.
In N number of string, the first of one of string, which returns back out line and second, returns back out line and stands with A and connect；The of one of string
One returns back out line and the shunt transformer connection of UPFC, and second returns back out line connects with the stations A；The first of two of which string return back out line with
A series transformer of UPFC connects, and second returns back out line connects with the stations B and the stations C respectively；The first of two of which string returns back out line
It is connect with another series transformer of UPFC, second returns back out line connects with the stations B and the stations C respectively.
In electric system shown in Fig. 3, N values are 6, that is, have 6 strings（Amount to 18 breakers）, the stations B pass through 2 strings
Connect with 2 series transformers, the stations C are connect by 2 strings with 2 series transformers, by the opening of breaker when change operation/
Closed state realizes a set of UPFC（1 and become, 2 string become）Control the function at the stations A~stations B, the stations A~4 loop line roads of the stations C.
As it can be seen in figures 5 and 6, opening the 4 edge of table breakers at the station and 2 strings where series transformer branch B when operation, that is, allow
B station outlets branch out string operation with series transformer so that the stations A have to pass through series transformer with the stations B could occur electrically to join
System, to realize the purpose of the stations the UPFC control A~stations B two-wire trend.
When due to normal operation, 18 breakers of UPFC 3/2nds wiring of station only have 14 breakers and put into operation,
It is different from conventional 3/2nds wiring breaker and is all closed the mode of operation, therefore say that this wiring patterns is not on stricti jurise
3/2nds wiring of standard.
As shown in FIG. 7 and 8, the 4 edge of table breakers that the station and 2 strings where series transformer branch C are opened when operation, allow C
Outlet of standing branches out string operation with series transformer so that the stations A have to pass through series transformer with the stations C could occur electrically to join
System, to realize the purpose of the stations the UPFC control A~stations C two-wire trend.Also there are 4 breakers to open operation under this mode, also belong to
3/2nds wiring patterns described herein.
Pass through the switching of the open and-shut mode of 8 edge of table breakers of 4 strings where 2 series transformers, 4 branches（Remaining 10
Platform breaker maintains normally off）, simply, neatly UPFC devices can be stood in the stations A~B between two-wire and the stations the A~stations C two-wire
Switching realizes that 1 set of UPFC controls the function of 4 times Line Flows.
Above-mentioned 3/2nds wiring patterns realize the function that a set of UPFC devices control 4 times Line Flows.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. controlling 3/2nds wiring patterns of four times Line Flows for UPFC, in electric system, the stations B and C stand by described
3/2nds wiring patterns of four times Line Flows are controlled for UPFC and the stations A connect, it is characterised in that：Including two busbares and
A set of UPFC, is provided with N number of string between two busbares, and N is not less than 6, each string include sequentially connected first side breaker, in
Between breaker and the second side breaker, be connected with first between first side breaker and intermediate breaker and return back out line, it is described
It is connected with second between second side breaker and intermediate breaker and returns back out line；
In N number of string, the first of one of string, which returns back out line and second, returns back out line and stands with A and connect；First time of one of string
The shunt transformer of outlet and UPFC connect, and second returns back out line connects with the stations A；The first of two of which string returns back out line and UPFC
A series transformer connection, second return back out line respectively with B station and C station connection；The first of two of which string return back out line with
Another series transformer of UPFC connects, and second returns back out line connects with the stations B and the stations C respectively.
2. 3/2nds wiring patterns according to claim 1 for controlling four times Line Flows for UPFC, feature exist
In：The first of N number of string returns back out line close to same busbar, and the second of N number of string returns back out line close to another busbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825121.9A CN106329532B (en) | 2016-09-14 | 2016-09-14 | 3/2nds wiring patterns of four times Line Flows are controlled for UPFC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825121.9A CN106329532B (en) | 2016-09-14 | 2016-09-14 | 3/2nds wiring patterns of four times Line Flows are controlled for UPFC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329532A CN106329532A (en) | 2017-01-11 |
| CN106329532B true CN106329532B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610825121.9A Active CN106329532B (en) | 2016-09-14 | 2016-09-14 | 3/2nds wiring patterns of four times Line Flows are controlled for UPFC |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0865139B1 (en) * | 1997-03-11 | 2008-12-03 | General Electric Company | Power flow control with rotary transformers |
| CN103227468A (en) * | 2013-04-25 | 2013-07-31 | 国家电网公司 | Main wiring pairing and stringing optimization method for transformer station |
| CN204835226U (en) * | 2015-08-21 | 2015-12-02 | 四川电力设计咨询有限责任公司 | Line arrangement structure of two complete clusters is joined in marriage into in wiring of one and half circuit breakers |
| CN105515169A (en) * | 2014-09-26 | 2016-04-20 | 南京南瑞继保电气有限公司 | Multilevel spare power automatic switching system, priority cooperation method, and construction method |
-
2016
- 2016-09-14 CN CN201610825121.9A patent/CN106329532B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0865139B1 (en) * | 1997-03-11 | 2008-12-03 | General Electric Company | Power flow control with rotary transformers |
| CN103227468A (en) * | 2013-04-25 | 2013-07-31 | 国家电网公司 | Main wiring pairing and stringing optimization method for transformer station |
| CN105515169A (en) * | 2014-09-26 | 2016-04-20 | 南京南瑞继保电气有限公司 | Multilevel spare power automatic switching system, priority cooperation method, and construction method |
| CN204835226U (en) * | 2015-08-21 | 2015-12-02 | 四川电力设计咨询有限责任公司 | Line arrangement structure of two complete clusters is joined in marriage into in wiring of one and half circuit breakers |
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| Publication number | Publication date |
|---|---|
| CN106329532A (en) | 2017-01-11 |
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