CN106532754A - Voltage selection equipment of inverter station in high-voltage DC power transmission system and operation method of voltage selection equipment - Google Patents
Voltage selection equipment of inverter station in high-voltage DC power transmission system and operation method of voltage selection equipment Download PDFInfo
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- CN106532754A CN106532754A CN201610879872.9A CN201610879872A CN106532754A CN 106532754 A CN106532754 A CN 106532754A CN 201610879872 A CN201610879872 A CN 201610879872A CN 106532754 A CN106532754 A CN 106532754A
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- breaker
- group
- pole
- inverter station
- voltage selection
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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
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides voltage selection equipment of an inverter station in a high-voltage DC power transmission system. The voltage selection equipment comprises a circuit breaker assembly and an isolation switch assembly, wherein a first group of circuit breakers and a third group of circuit breakers in the circuit breaker assembly are arranged on a first bus; a second group of circuit breakers and a fourth group of circuit breakers are arranged on a second bus; the first group of circuit breakers and the second group of circuit breakers are arranged between a pole 1 and a pole 2; the third group of circuit breakers are arranged between the first group of circuit breakers and an address 2; the fourth group of circuit breakers are arranged between the second group of circuit breakers and the address 2; and each isolation switch in the isolation switch assembly is arranged on an outgoing line of an address 1 at the side of the pole 1. According to the voltage selection equipment, the condition that the inverter station can reliably run under voltage control in different operation modes is ensured.
Description
Technical field
The present invention relates to Inverter Station voltage selection device and its operation method in a kind of HVDC transmission system.
Background technology
Long distance power transmission can be run into when electric energy is transported to distant place load center area from power plants such as large-scale firepower, waterpower
Problem.Remote high power transmission is realized, super-pressure or UHV transmission technology need to be adopted.Ultra-high voltage AC transmission is mesh
Electrically, and there is no synchronism stability sex chromosome mosaicism in extra-high voltage direct-current transmission to front remote conveying most basic both at home and abroad, be big region
The ideal style of Power System Interconnection.
Compared with ac transmission, the advantage of direct current transportation has：Remote bulk power transmission, direct current transportation are not run simultaneously
The restriction of stability problem, the stable operation to ensureing two ends AC network have played great role；It is capable of achieving using direct current transportation
State's inner region net or international asynchronous interconnection, can both obtain benefit of interconnection big System Partition for several, again can be relatively independent
AC system, it is to avoid the problem brought by total capacity excessive AC electric power systems；AC electric power systems is interconnected or distribution
During net increase-volume, the control system of direct current transportation has the characteristics of regulation is fast, control performance is good, can effectively limit short-circuit electricity
Stream so as to kept stable, can be used as the measure of limiting short-circuit current；Power to the intensive big city of electricity consumption, in power supply
It is when distance reaches to a certain degree, more economical with high voltage direct current cable, while direct current transportation mode is also used as limiting city
The measure of power supply grid short circuit current increase.
Therefore, the characteristics of extra-high voltage direct-current transmission is not only transmitted electricity with customary DC, but also can be good at solving me
Some existing problems of state：China's primary energy distribution is very unbalanced, and water resource 2/3 is distributed in southwest, coal resource
2/ 3 are distributed in Shaanxi, Shanxi and West Inner Mongolia, and electricity needs be relatively concentrated in economic development preferably faster east,
Middle part and southwest region, the distance between the energy place of production and demand area are 1000 ~ 2500km, therefore China will greatly develop west
Electric east is sent, and realizes north and south supply mutually, on national network, and extra-high voltage direct-current transmission is relatively inexpensive in terms of long distance power transmission, and controls
Protection is flexibly quick, is the preferable approach for realizing north and south supply mutually；East China, middle part, southern areas be China economically developedly
Area, need for electricity are big, and power load has higher growth rate, and extra-high voltage direct-current transmission can realize large capacity transmission, planning
Extra-high voltage direct-current transmission engineering power transmission capacity be up to 5GW and 6.4GW, corresponding DC rated current be up to 3125A and
4000A, can preferably meet the needs of transferring electricity from the west to the east；Due to China soil and the pressure of environmental protection, realized by extra-high voltage direct-current
Large Copacity, long distance power transmission, can save line corridor, alleviate the anxiety of the land resource brought due to the development of electric power.
It is different from conventional super high voltage direct current electricity transmission engineering, direct current transportation complete conveying from converting plant to Inverter Station it
Afterwards, need to supply different places electricity consumption in Inverter Station, be probably according to actual needs be all sent to one it is local（Address 1）, or
Person is all sent to another place（Address 2）, also or while be sent to two it is local.
The content of the invention
The present invention provides Inverter Station voltage selection device and its operation method in a kind of HVDC transmission system, it is ensured that
Voltage control of the Inverter Station under different operational modes can reliability service.
In order to achieve the above object, the present invention provides Inverter Station voltage selection device in a kind of HVDC transmission system,
Comprising：
Breaker assembly, which includes four groups of breakers, and first group of breaker and the 3rd group of breaker are arranged on the first bus, the
Two groups of breakers and the 4th group of breaker are arranged on the second bus, and first group of breaker and second group of breaker are all arranged on pole
Between 1 and pole 2, the 3rd group of breaker is arranged between first group of breaker and address 2, and the 4th group of breaker is arranged on second group
Between breaker and address 2；
Switch component, which includes multiple disconnecting switch, and each disconnecting switch is separately mounted to the outlet of 1 side address 1 of pole
On.
Breaker of the first group of described breaker comprising n series connection, the value of n are more than or equal to 1.
Breaker of the second group of described breaker comprising n series connection, the value of n are more than or equal to 1.
Breaker of the 3rd group of described breaker comprising n series connection, the value of n are more than or equal to 1.
Breaker of the 4th group of described breaker comprising n series connection, the value of n are more than or equal to 1.
Described voltage selection device is also included：High voltage potential transformer component, which includes two high voltage potential transformers,
First high voltage potential transformer is arranged on the bus of 1 side of pole, and the second high voltage potential transformer is arranged on the bus of 2 side of pole.
The present invention also provides a kind of operation method of voltage selection device, using voltage selection device to different operational modes
Carry out voltage selection：
When Inverter Station needs for the power of pole 1 and pole 2 to be all delivered to address 1, the first breaker and the second circuit breaker closing is made
Close, the 3rd breaker and the 4th breaker disconnect, make all of disconnecting switch closure, all breakers in Inverter Station is all closed
Close；
When Inverter Station needs for the power of pole 1 and pole 2 to be all delivered to address 2, make the first breaker, the second breaker, the
Three breakers and the 4th breaker are all off, disconnect all of disconnecting switch, make to be connected to the outlet point both sides of address 1
All breakers are all off, remain closed remaining breaker in Inverter Station；
When Inverter Station needs the power of pole 1 is delivered to address 1 respectively, when the power of pole 2 is delivered to address 2, first is made to break
Road device and the disconnection of the second breaker, the 3rd breaker and the 4th breaker closing, make all of disconnecting switch closure, make Inverter Station
In all breakers all close.
The present invention adopts breaker assembly and switch component, realizes and for the voltage of Inverter Station to be all sent to address 1,
Or voltage is all sent to address 2, or portion voltage is sent to into address, portion voltage is sent to address 2, it is ensured that Inverter Station is not
Can reliability service with the voltage control under operational mode.
Description of the drawings
Fig. 1 is the schematic diagram of Inverter Station voltage selection device in a kind of HVDC transmission system that the present invention is provided.
Fig. 2～Fig. 4 is schematic diagram when voltage selection device is operated in different working modes.
Specific embodiment
Below according to Fig. 1～Fig. 4, presently preferred embodiments of the present invention is illustrated.
As shown in figure 1, in a preferred embodiment of the present invention, the present invention is provided in a kind of HVDC transmission system
Inverter Station voltage selection device, comprising：
Breaker assembly, which includes four breakers, and the first breaker 201 and the 3rd breaker 203 are arranged on the first bus 11
On, the second breaker 202 and the 4th breaker 204 are arranged on the second bus 22, the first breaker 201 and the second breaker
202 are all arranged between pole 1 and pole 2, and the 3rd breaker 203 is arranged between the first breaker 201 and address 2, and the 4th is breaking
Device 204 is arranged between the second breaker 202 and address 2；
High voltage potential transformer PT components, which includes two high voltage potential transformers, and the first high voltage potential transformer 301 is arranged on
On the bus of 1 side of pole, the second high voltage potential transformer 302 is arranged on the bus of 2 side of pole；
Switch component, which includes multiple disconnecting switch 401, and each disconnecting switch 401 is separately mounted to 1 side address 1 of pole
Outlet on.
Voltage selection is carried out to different operational modes using voltage selection device：
As shown in Fig. 2 when Inverter Station needs for the power of pole 1 and pole 2 to be all delivered to address 1, making 201 He of the first breaker
Second breaker 202 is closed, and the 3rd breaker 203 and the 4th breaker 204 disconnect, and is closed all of disconnecting switch 401, is made
All breakers 5 in Inverter Station are all closed.
As shown in figure 3, when Inverter Station needs for the power of pole 1 and pole 2 to be all delivered to address 2, making the first breaker
201st, the second breaker 202, the 3rd breaker 203 and the 4th breaker 204 are all off, make all of disconnecting switch 401 break
Open, all breakers 5 of the outlet point both sides for making to be connected to address 1 are all off, keep remaining breaker 5 in Inverter Station
Closure.
As shown in figure 4, when Inverter Station needs the power of pole 1 is delivered to address 1 respectively, being delivered to ground by the power of pole 2
During location 2, disconnect the first breaker 201 and the second breaker 202, close the 3rd breaker 203 and the 4th breaker 204,
Close all of disconnecting switch 401, all breakers 5 in Inverter Station is all closed.
The present invention adopts breaker assembly and switch component, realizes and for the voltage of Inverter Station to be all sent to address 1,
Or voltage is all sent to address 2, or portion voltage is sent to into address, portion voltage is sent to address 2, it is ensured that Inverter Station is not
Can reliability service with the voltage control under operational mode.
It is although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. Inverter Station voltage selection device in a kind of HVDC transmission system, it is characterised in that include：
Breaker assembly, which includes four groups of breakers, and first group of breaker and the 3rd group of breaker are arranged on the first bus（11）
On, second group of breaker and the 4th group of breaker are arranged on the second bus（22）On, first group of breaker and second group of breaker
All it is arranged between pole 1 and pole 2, the 3rd group of breaker is arranged between first group of breaker and address 2, the 4th group of breaker peace
It is mounted between second group of breaker and address 2；
Switch component, which includes multiple disconnecting switch（401）, each disconnecting switch（401）It is separately mounted to 1 side of pole ground
In the outlet of location 1.
2. Inverter Station voltage selection device in HVDC transmission system as claimed in claim 1, it is characterised in that described
Breaker of first group of breaker comprising n series connection, the value of n are more than or equal to 1.
3. Inverter Station voltage selection device in HVDC transmission system as claimed in claim 1, it is characterised in that described
Breaker of second group of breaker comprising n series connection, the value of n are more than or equal to 1.
4. Inverter Station voltage selection device in HVDC transmission system as claimed in claim 1, it is characterised in that described
Breaker of the 3rd group of breaker comprising n series connection, the value of n are more than or equal to 1.
5. Inverter Station voltage selection device in HVDC transmission system as claimed in claim 1, it is characterised in that described
Breaker of the 4th group of breaker comprising n series connection, the value of n are more than or equal to 1.
6. Inverter Station voltage selection device in the HVDC transmission system as described in any one in claim 1-5, which is special
Levy and be, described voltage selection device is also included：High voltage potential transformer component, which includes two high voltage potential transformers,
First high voltage potential transformer（301）On the bus of 1 side of pole, the second high voltage potential transformer（302）Installed in 2 side of pole
Bus on.
7. a kind of operation method of voltage selection device as claimed in claim 6, it is characterised in that adopt voltage selection device
Voltage selection is carried out to different operational modes：
When Inverter Station needs for the power of pole 1 and pole 2 to be all delivered to address 1, the first breaker is made（201）It is breaking with second
Device（202）Closure, the 3rd breaker（203）With the 4th breaker（204）Disconnect, make all of disconnecting switch（401）Closure, makes
All breakers in Inverter Station（5）All close；
When Inverter Station needs for the power of pole 1 and pole 2 to be all delivered to address 2, the first breaker is made（201）, it is second breaking
Device（202）, the 3rd breaker（203）With the 4th breaker（204）It is all off, make all of disconnecting switch（401）Disconnect, make
It is connected to all breakers of the outlet point both sides of address 1（5）It is all off, make remaining breaker in Inverter Station（5）Keep
Closure；
When Inverter Station needs the power of pole 1 is delivered to address 1 respectively, when the power of pole 2 is delivered to address 2, first is made to break
Road device（201）With the second breaker（202）Disconnect, the 3rd breaker（203）With the 4th breaker（204）Closure, makes all of
Disconnecting switch（401）Closure, makes all breakers in Inverter Station（5）All close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879872.9A CN106532754A (en) | 2016-10-09 | 2016-10-09 | Voltage selection equipment of inverter station in high-voltage DC power transmission system and operation method of voltage selection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879872.9A CN106532754A (en) | 2016-10-09 | 2016-10-09 | Voltage selection equipment of inverter station in high-voltage DC power transmission system and operation method of voltage selection equipment |
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| Publication Number | Publication Date |
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| CN106532754A true CN106532754A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610879872.9A Pending CN106532754A (en) | 2016-10-09 | 2016-10-09 | Voltage selection equipment of inverter station in high-voltage DC power transmission system and operation method of voltage selection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818364A (en) * | 2019-04-02 | 2019-05-28 | 云南电网有限责任公司电力科学研究院 | A kind of exchange field structure for realizing the regulation of HVDC transmission system dc power |
| CN109950936A (en) * | 2019-04-02 | 2019-06-28 | 云南电网有限责任公司电力科学研究院 | A kind of HVDC transmission system exchange field structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070517A (en) * | 1991-09-13 | 1993-03-31 | 株式会社日立制作所 | Electrical power transmission system |
| CN103647298A (en) * | 2013-11-27 | 2014-03-19 | 中国南方电网有限责任公司电网技术研究中心 | Full-current composite high-voltage direct current transmission system |
| CN205178525U (en) * | 2015-11-06 | 2016-04-20 | 南方电网科学研究院有限责任公司 | Asynchronous conversion equipment of high voltage direct current both ends electric wire netting |
-
2016
- 2016-10-09 CN CN201610879872.9A patent/CN106532754A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070517A (en) * | 1991-09-13 | 1993-03-31 | 株式会社日立制作所 | Electrical power transmission system |
| CN103647298A (en) * | 2013-11-27 | 2014-03-19 | 中国南方电网有限责任公司电网技术研究中心 | Full-current composite high-voltage direct current transmission system |
| CN205178525U (en) * | 2015-11-06 | 2016-04-20 | 南方电网科学研究院有限责任公司 | Asynchronous conversion equipment of high voltage direct current both ends electric wire netting |
Non-Patent Citations (1)
| Title |
|---|
| 武霄等: "高压直流控制原理研究", 《上海电力学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818364A (en) * | 2019-04-02 | 2019-05-28 | 云南电网有限责任公司电力科学研究院 | A kind of exchange field structure for realizing the regulation of HVDC transmission system dc power |
| CN109950936A (en) * | 2019-04-02 | 2019-06-28 | 云南电网有限责任公司电力科学研究院 | A kind of HVDC transmission system exchange field structure |
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Application publication date: 20170322 |
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