CN205945059U - Cascade compensation device suitable for two loop line ways - Google Patents
Cascade compensation device suitable for two loop line ways Download PDFInfo
- Publication number
- CN205945059U CN205945059U CN201620887892.6U CN201620887892U CN205945059U CN 205945059 U CN205945059 U CN 205945059U CN 201620887892 U CN201620887892 U CN 201620887892U CN 205945059 U CN205945059 U CN 205945059U
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- Prior art keywords
- double
- compensation device
- line
- series
- series compensation
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Abstract
The utility model discloses a cascade compensation device suitable for two loop line ways. Contain a series transformer and a transverter. A transverter and two transmission line that returns are connected with a series transformer's three winding respectively. The application provides a device scheme can independently be installed in power transmission system and used as static synchronous series compensator, also can be as the put in series component parts of power transmission system device of unified power flow controller, convertible static compensator, space power flow controller and unified power quality conditioner. The transverter capacity can be saved to this device, improves application efficiency, the cost is reduced and the area of cascade compensation device.
Description
Technical field
This utility model is related to flexible AC transmission field and in particular to a kind of series compensation being applied to double-circuit line fills
Put.
Background technology
The equipment of flexible AC transmitting system (FACTS) can be divided into series compensation device, paralleling compensating device and comprehensive control
Device processed.Wherein paralleling compensating device can be directly accessed in the electrical network of various grades, and series compensation device and Comprehensive Control
Device, due to need to connect access electrical network one end, needs combined reliability, motility and safety, studies its access way.
In series compensation device and composite control apparatus, SSSC (SSSC), THE UPFC
(UPFC), between line flow controller (IPFC) and convertible static compensator (CSC) be all can improve power transmitting capability and
The flexible transmission equipment of ability of regulation and control；Also have a kind of Research on Unified Power Quality Conditioner (UPQC), the electric energy matter of circuit can be improved
Amount.In addition to SSSC, other equipment has two inverters, and has corresponding transformator to complete to isolate and become
The functions such as pressure.Because SSSC, generally as a kind of additional method of operation of other devices, also can arrange
Enter similar.
The series compensation end of series compensation device or composite control apparatus at present, is all to access electricity by series transformer
Net.China 110kV and above electrical network major part adopt double-circuit line structure, and this is accomplished by two series transformers and two sets are connected
Compensation device is connected access double-circuit line respectively, certainly will increased floor space and cost of investment, simultaneously multiple stage series transformer
Also overall losses are made to increase.To the electrical network using more loop line line structures, cost, occupation of land and equipment loss will limit further
The application of series compensation device.In order to solve above deficiency, improve the economy that FACTS accesses electrical network, need one kind more suitable
Series compensation device for double-circuit line.
Utility model content
The purpose of this utility model, is to provide a kind of series compensation device being applied to double-circuit line, considers into
Originally, volume and equipment loss, meets economy and the reliability that FACTS accesses electrical network.
In order to reach above-mentioned purpose, solution of the present utility model is：
A kind of series compensation device being applied to double-circuit line, comprises at least one voltage source converter and a three-phase is many
Winding transformer, at least two windings of described multiwinding transformer are connected respectively and are accessed the double-circuit line of three-phase, at least one
Winding is connected with the three-phase alternating current side of voltage source converter.
Above-mentioned a kind of series compensation device being applied to double-circuit line, described multiwinding transformer and voltage source converter
Connect winding using star-like be directly grounded or star-like resistance grounded or angle-style connection.
A kind of above-mentioned series compensation device being applied to double-circuit line, described multiwinding transformer adopts three-phase integrated
During structure, include the balance winding no-load running of an angle-style.
A kind of above-mentioned series compensation device being applied to double-circuit line, when described voltage source converter quantity is more than 1,
The access way of multiple inverters includes but is not limited to：The AC of all inverters accesses of transformator after being connected in parallel
Winding；Multiple inverters are respectively connected to multiple windings of transformator, and each inverter is corresponding to access a Transformer Winding；Multiple
Multiple windings of transformator are accessed after the packet parallel connection of inverter AC.
A kind of above-mentioned series compensation device being applied to double-circuit line, be provided between described inverter and transformator but not
It is limited to：The some or all equipment of chopper, disconnecting link, spark gap, shunting device.
A kind of above-mentioned series compensation device being applied to double-circuit line, shunting device be used for that AC system is alternate or line between
Bypass, concrete device is bypass breaker or thyristor valve or spark gap.
A kind of above-mentioned series compensation device being applied to double-circuit line, between described multiwinding transformer and transmission line of electricity
It is provided with but be not limited to：The some or all equipment of chopper, disconnecting link, spark gap, shunting device.
A kind of above-mentioned series compensation device being applied to double-circuit line, described double-circuit line can expand at most loop line
Road, accordingly, multi circuit transmission lines are respectively connected to multiple windings of transformator using split-phase series system.
A kind of above-mentioned series compensation device being applied to double-circuit line, can independently installed in transmission system, also can conduct
But it is not limited to flow controller or system between THE UPFC, convertible static compensator, SSSC, line
One of one electric energy regulator, series connection accesses the ingredient of transmission line of electricity device.
After such scheme, this utility model only comprises a series transformer, achieves double back by multiple windings
The access of circuit.Transformator is divided into valve side winding and line side winding two parts, when normally running, the total current of valve side winding
(converting to line side) is equal with the total current of line side winding, and the total current of double-circuit line is always far little in normal operation
In 2* circuit rated current, therefore, the total current (converting to line side) of all inverters only needs to be chosen as line current
The total current that maximum possible is run, and if corresponding to a series compensation device using every loop line road, then every series connection is mended
Repay the rated current that the electric current (converting to line side) of device inverter has to equal to circuit, for double-circuit line, then two
The inverter total current of series compensation device is equal to 2* circuit rated current；And adopt scheme of the present utility model, inverter
Total current can be much smaller than 2* circuit rated current, and that is, on the premise of identical output rated voltage, the inverter of this programme holds
Amount will improve the operational efficiency of series compensation device, saved the cost of device, also saved simultaneously much smaller than conventional scheme
The floor space of series transformer and equipment cost, improve economy and the reliability that FACTS accesses electrical network.
Brief description
Fig. 1 is the wiring construction schematic diagram being applied to double-circuit line series compensation device in this utility model；
Fig. 2 is that in this utility model, multiwinding transformer inverter side winding is star-like is directly grounded connection schematic diagram；
Fig. 3 is winding angle-style connection schematic diagram in multiwinding transformer inverter side in this utility model；
Fig. 4 is the connection schematic diagram that in this utility model, multiwinding transformer band balances winding；
Fig. 5 is the mode of connection schematic diagram that in this utility model, multiple inverters access.
Fig. 6 is the mode of connection schematic diagram being extended to three loop line roads of the present utility model.
Fig. 7 is the wiring construction schematic diagram as THE UPFC ingredient for this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings specific embodiment of the present utility model is described in detail.
This utility model provides a kind of series compensation device being applied to double-circuit line, comprises at least one voltage source and changes
Stream device and a three-phase multiwinding transformer, at least two windings of described multiwinding transformer are connected respectively and are accessed the double of three-phase
Loop line road, at least one winding is connected with the three-phase alternating current side of voltage source converter.As shown in figure 1, inverter, a double back are defeated
Electric line is connected with three windings of multiwinding transformer respectively, constitutes the minimal structure of this device.
A kind of aforesaid series compensation device being applied to double-circuit line, multiwinding transformer is connected with voltage source converter
Winding using star-like be directly grounded or star-like resistance grounded or angle-style connection.Fig. 2 and Fig. 3 sets forth and change
Stream device connects winding using the star-like schematic diagram being directly grounded connection and angle-style connection.
A kind of aforesaid series compensation device being applied to double-circuit line, multiwinding transformer adopts three-phase integrated structure
When, include the balance winding no-load running of an angle-style.Fig. 4 gives the signal of one group of balance winding of multiwinding transformer band
Figure.
A kind of aforesaid series compensation device being applied to double-circuit line, when voltage source converter quantity is more than 1, Duo Gehuan
The access way of stream device includes but is not limited to：The AC of all inverters accesses a winding of transformator after being connected in parallel；
Multiple inverters are respectively connected to multiple windings of transformator, and each inverter is corresponding to access a Transformer Winding；As Fig. 5 institute
Show, after multiple inverter AC packet parallel connections, access multiple windings of transformator.
A kind of aforesaid series compensation device being applied to double-circuit line, is provided between inverter and transformator but does not limit
In：The some or all equipment of chopper, disconnecting link, spark gap, shunting device.
A kind of aforesaid series compensation device being applied to double-circuit line, shunting device be used for that AC system is alternate or line between
Bypass, concrete device is chopper or thyristor valve or spark gap.
A kind of aforesaid series compensation device being applied to double-circuit line, between described multiwinding transformer and transmission line of electricity
It is provided with but be not limited to：The some or all equipment of chopper, disconnecting link, spark gap, shunting device.
A kind of aforesaid series compensation device being applied to double-circuit line, double-circuit line can be expanded to multi circuit transmission lines, accordingly
, multi circuit transmission lines are respectively connected to multiple windings of transformator using split-phase series system.As shown in fig. 6, three loop line roads adopt dividing
The mode of being in series is respectively connected to three line side windings of transformator, access after two parallel connections of inverter one of transformator around
Group.
A kind of aforesaid series compensation device being applied to double-circuit line, series compensation device can independently installed in transmission of electricity system
System, also can as but be not limited between THE UPFC, convertible static compensator, SSSC, line tide
Stream controller and the ingredient of Research on Unified Power Quality Conditioner series connection access transmission line of electricity device.Fig. 7 gives as unification
A kind of usage of flow controller ingredient.
After such scheme, this utility model only comprises a series transformer, achieves double back by multiple windings
The access of circuit.Transformator is divided into valve side winding and line side winding two parts, when normally running, the total current of valve side winding
(converting to line side) is equal with the total current of line side winding, and the total current of double-circuit line is always far little in normal operation
In 2* circuit rated current, therefore, the total current (converting to line side) of all inverters only needs to be chosen as line current
The total current that maximum possible is run, and if corresponding to a series compensation device using every loop line road, then every series connection is mended
Repay the rated current that the electric current (converting to line side) of device inverter has to equal to circuit, for double-circuit line, then two
The inverter total current of series compensation device is equal to 2* circuit rated current；And adopt scheme of the present utility model, inverter
Total current can be much smaller than 2* circuit rated current, and that is, on the premise of identical output rated voltage, the inverter of this programme holds
Amount will improve the operational efficiency of series compensation device, saved the cost of device, also saved simultaneously much smaller than conventional scheme
The floor space of series transformer and equipment cost, improve economy and the reliability that FACTS accesses electrical network.
Finally it should be noted that：In conjunction with above-described embodiment, the technical solution of the utility model is only described rather than it is limited
System.Those of ordinary skill in the art are to be understood that：Those skilled in the art can be embodied as to of the present utility model
Mode is modified or equivalent, but these modifications or change are all being applied within pending patent requirements protection domain.
Claims (9)
1. a kind of series compensation device being applied to double-circuit line it is characterised in that：Comprise at least one voltage source converter and
One three-phase multiwinding transformer, at least two windings of described three-phase multiwinding transformer are connected respectively and are accessed the double back of three-phase
Circuit, at least one winding is connected with the three-phase alternating current side of voltage source converter.
2. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described Multiple coil
The winding that transformator is connected with voltage source converter is directly grounded or star-like resistance grounded or angle-style using star-like
Connection.
3. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described three-phase is many
When winding transformer adopts three-phase integrated structure, include the balance winding no-load running of an angle-style.
4. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described voltage
When source inverter quantity is more than 1, the access way of multiple inverters includes：The AC of all inverters accesses after being connected in parallel
One winding of transformator；Multiple inverters are respectively connected to multiple windings of transformator, and each inverter is corresponding to access a change
Depressor winding；Multiple windings of transformator are accessed after multiple inverter AC packet parallel connections.
5. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described voltage source
It is provided between inverter and three-phase multiwinding transformer：The some or all equipment of chopper, disconnecting link, spark gap, shunting device.
6. as claimed in claim 5 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described bypass dress
Put for AC system is alternate or line between bypass, concrete device is bypass breaker or thyristor valve or spark gap.
7. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described Multiple coil
It is provided between transformator and transmission line of electricity：The some or all equipment of chopper, disconnecting link, spark gap, shunting device.
8. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：When described double
When loop line road is expanded to multi circuit transmission lines, multi circuit transmission lines are respectively connected to multiple windings of transformator using split-phase series system.
9. as claimed in claim 1 a kind of series compensation device being applied to double-circuit line it is characterised in that：Described series connection is mended
Repay device can independently installed in transmission system, or, as THE UPFC, convertible static compensator, Static Synchronous
One of flow controller or Research on Unified Power Quality Conditioner between series compensator, line, series connection accesses transmission line of electricity device
Ingredient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887892.6U CN205945059U (en) | 2016-08-16 | 2016-08-16 | Cascade compensation device suitable for two loop line ways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887892.6U CN205945059U (en) | 2016-08-16 | 2016-08-16 | Cascade compensation device suitable for two loop line ways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945059U true CN205945059U (en) | 2017-02-08 |
Family
ID=57918631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620887892.6U Withdrawn - After Issue CN205945059U (en) | 2016-08-16 | 2016-08-16 | Cascade compensation device suitable for two loop line ways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205945059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130020A (en) * | 2016-08-16 | 2016-11-16 | 南京南瑞继保电气有限公司 | A kind of series compensation device being applicable to double-circuit line |
-
2016
- 2016-08-16 CN CN201620887892.6U patent/CN205945059U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130020A (en) * | 2016-08-16 | 2016-11-16 | 南京南瑞继保电气有限公司 | A kind of series compensation device being applicable to double-circuit line |
| WO2018033059A1 (en) * | 2016-08-16 | 2018-02-22 | 南京南瑞继保电气有限公司 | Series compensation device applicable to double-circuit line |
| US10396562B2 (en) | 2016-08-16 | 2019-08-27 | Nr Electric Co., Ltd | Series compensation device applicable to double-circuit line |
| CN106130020B (en) * | 2016-08-16 | 2020-03-20 | 南京南瑞继保电气有限公司 | Series compensation device suitable for double-circuit line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20200320 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20200320 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |