CN104362659B - In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method - Google Patents
In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method Download PDFInfo
- Publication number
- CN104362659B CN104362659B CN201410536117.1A CN201410536117A CN104362659B CN 104362659 B CN104362659 B CN 104362659B CN 201410536117 A CN201410536117 A CN 201410536117A CN 104362659 B CN104362659 B CN 104362659B
- Authority
- CN
- China
- Prior art keywords
- pole
- locking
- control system
- emergency outage
- inverter side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000009191 jumping Effects 0.000 title claims abstract description 12
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
- Inverter Devices (AREA)
Abstract
nullIn HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method,In the method，Positive pole when rectification side、The negative pole of rectification side、The single valve group of the positive pole of rectification side、The single valve group of the negative pole of rectification side、The positive pole of inverter side、The negative pole of inverter side、When the single valve group generation locking of the single valve group of the positive pole of inverter side or the negative pole of inverter side or emergency outage，The pole control system that the pole of locking or emergency outage occurs can send locking or emergency outage signal the bipolar DC pole control system of homonymy to by direct current station Ore-controlling Role，And then locking/emergency outage while of making the same side bipolar，Time needed for transmitting due to locking/emergency outage signal is very short，In 50 milliseconds，Thus the method can ensure locking/emergency outage while that another pole being also when a pole locking/emergency outage，Bipolar can be avoided to there is out-of-balance current，Electric current is avoided to enter grounded screen in station，Ensure station equipment and personal safety.
Description
Technical field
The invention mainly relates to technical field of high-voltage direct, refer in particular to and bipolar under the ground connection method of operation in a kind of HVDC transmission system station synchronize connection jumping method.
Background technology
D.C. high voltage transmission has become the inexorable trend of modern power systems development, and in the power network development strategy of " national network, transferring electricity from the west to the east, north and south supply mutually ", high voltage dc transmission technology will play a leading role.And in HVDC transmission system, earthing pole is the important component part of system, and in Practical Project construction process, owing to the external causes such as expropriation of land addressing cause earthing pole not go into operation as scheduled, affect the bipolar smooth operation of HVDC transmission system, the serious economic benefit hindering transmission of electricity and social benefit, and the easiest existing solution is exactly utilize the bipolar method of operation (as shown in Figure 2) of Grounding in station to substitute the bipolar method of operation (as shown in Figure 1) of earthing pole ground connection.
And the bipolar method of operation of interior Grounding of taking to stand replaces the bipolar method of operation of earthing pole, must be optimized controlling function, make DC control for adapting to HVDC transmission system by the bipolar method of operation of Grounding in standing, must ensure to reduce as far as possible earth current in HVDC transmission system running and enter in station grounded screen to ensure station equipment and personal safety.
And in the bipolar operation of D.C. high voltage transmission, no matter it is rectification side or inverter side, if the pole locking (Block) in bipolar or emergency outage (ESOF), bipolar all will exist very big out-of-balance current, the bipolar method of operation according to Grounding, then this out-of-balance current will flow into grounded screen in station, and station equipment and personal safety are constituted a threat to.And in the bipolar operation of D.C. high voltage transmission, no matter it is rectification side or inverter side, if certain pole single valve group locking or emergency outage, in this pole, another valve group is forced in phase shift and restarting process, the out-of-balance current that bipolar existence is very big, according to the bipolar method of operation of Grounding in station, then this out-of-balance current will be stood interior grounded screen, also can station equipment and personal safety be constituted a threat to.
Summary of the invention
For overcoming the defect having in above-mentioned prior art, it is an object of the invention to provide in a kind of HVDC transmission system station under the ground connection method of operation the bipolar synchronization connection jumping method (namely by high-speed grounding switch ground connection in standing), the method can ensure that the bipolar connection that synchronizes jumps locking or emergency outage, it is ensured that station equipment and personal safety.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is:
In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method, comprise the following steps: the single valve group generation locking of the negative pole of the positive pole of A. rectification side, the negative pole of rectification side, the single valve group of positive pole of rectification side, the single valve group of negative pole of rectification side, the positive pole of inverter side, the negative pole of inverter side, the single valve group of positive pole of inverter side or inverter side or emergency outage, occur the pole control system of the pole of locking or emergency outage or valve group control system to perform locking or emergency outage flow process；Simultaneously, if the positive pole of rectification side, the negative pole of rectification side, the positive pole of inverter side or the negative pole generation locking of inverter side or emergency outage, locking or emergency outage signal are sent to the direct current station Ore-controlling Role of homonymy by the pole control system that the pole of locking or emergency outage then occurs, if the single valve group of the positive pole of rectification side, the single valve group of the negative pole of rectification side, the single valve group generation locking of the single valve group of the positive pole of inverter side or the negative pole of inverter side or emergency outage, then locking or emergency outage signal are sent to the pole control system of the pole at this valve control system place by the valve control system of the valve group of locking or emergency outage, the pole control system of the pole at this valve control system place is then forwarded to the direct current station Ore-controlling Role of homonymy；If B. the direct current station Ore-controlling Role of rectification side receives locking or the emergency outage signal that the pole control system of the negative or positive electrode of rectification side sends, then by High-speed Control bus, emergency outage signal is sent simultaneously to the positive pole of rectification side and the pole control system of negative pole；If the direct current station Ore-controlling Role of inverter side receives locking or the emergency outage signal that the pole control system of the negative or positive electrode of inverter side sends, then by High-speed Control bus, block signal is sent simultaneously to the positive pole of inverter side and the pole control system of negative pole；C. the positive pole of rectification side and the pole control system of negative pole are after the emergency outage signal that the direct current station Ore-controlling Role receiving homonymy sends over, and the positive pole of rectification side and negative pole are performed both by emergency outage flow process；The positive pole of inverter side and the pole control system of negative pole after the block signal that the direct current station Ore-controlling Role receiving homonymy sends over, inverter side positive pole and negative pole be performed both by locking flow process.
nullFrom said method，Positive pole when rectification side、The negative pole of rectification side、The single valve group of the positive pole of rectification side、The single valve group of the negative pole of rectification side、The positive pole of inverter side、The negative pole of inverter side、When the single valve group generation locking of the single valve group of the positive pole of inverter side or the negative pole of inverter side or emergency outage，The pole control system of the pole control system that the pole of locking or emergency outage occurs or the pole belonging to valve group that locking or emergency outage occur can send the locking of pole or valve group or emergency outage signal the bipolar DC pole control system of homonymy to by direct current station Ore-controlling Role，And then locking or emergency outage while of making the same side bipolar，Time needed for transmitting due to locking or emergency outage signal is very short，In 50 milliseconds，Thus the method can ensure another pole also locking simultaneously or emergency outage when a pole locking or emergency outage，Bipolar can be avoided to there is out-of-balance current，Out-of-balance current is avoided to enter grounded screen in station，Ensure station equipment and personal safety.In addition, after the direct current station Ore-controlling Role of rectification side receives the locking or emergency outage signal that the pole control system of the negative or positive electrode of rectification side sends, the signal being sent to the positive pole of rectification side and the pole control system of negative pole is emergency outage signal (ESOF), this is conducive to rectification side quickly to cut off alternating current power supply, quickly reduces DC current；After the direct current station Ore-controlling Role of inverter side receives the locking or emergency outage signal that the pole control system of the negative or positive electrode of inverter side sends, the signal being sent to the positive pole of inverter side and the pole control system of negative pole is block signal (Block), owing to locking flow process is not turned off the alternating current power supply of inverter side, this be conducive to inverter side quickly by straight-flow system energy back to alternating current power supply, comparing emergency outage flow process, locking flow process can reduce the risk that inverter side DC fields spark gap damages.
Step A0 is also included: by the logic operation cycle time of the direct current station Ore-controlling Role of rectification side and inverter side and bipolar pole control system before described step A.Shorten movement time bipolar during bipolar jumping further poor, more reliable safety.
Compared with prior art, what the present invention brought has the beneficial effect that
1. can ensure another pole also locking simultaneously or emergency outage when a pole single valve group/bivalve group locking or emergency outage, bipolar can be avoided to there is out-of-balance current, it is to avoid electric current enters grounded screen in station, it is ensured that station equipment and personal safety；
2. after receiving, due to the direct current station Ore-controlling Role of rectification side, the locking or emergency outage signal that the pole control system of the negative or positive electrode of rectification side sends, the signal being sent to the positive pole of rectification side and the pole control system of negative pole is emergency outage signal (ESOF), this is conducive to rectification side quickly to cut off alternating current power supply, quickly reduces DC current；After the direct current station Ore-controlling Role of inverter side receives the locking or emergency outage signal that the pole control system of the negative or positive electrode of inverter side sends, the signal being sent to the positive pole of inverter side and the pole control system of negative pole is block signal (Block), owing to locking flow process is not turned off the alternating current power supply of inverter side, this be conducive to inverter side quickly by straight-flow system energy back to alternating current power supply, comparing emergency outage flow process, locking flow process can reduce the risk that inverter side DC fields spark gap damages；
3. locking or emergency outage signal are by controlling bus transfer, and more fast, the time needed for making locking or emergency outage signal transmit is shorter, more reliable safety；
4. the logic operation cycle of each direct current station Ore-controlling Role and bipolar pole control system is reduced, and further shorten movement time bipolar during bipolar jumping poor.
Accompanying drawing explanation
Fig. 1 is the HVDC transmission system primary structure schematic diagram of the bipolar method of operation adopting earthing pole ground connection；
Fig. 2 adopts the HVDC transmission system primary structure schematic diagram of the bipolar operation method of grounded screen in station；
Fig. 3 is the flow chart of the embodiment of the present invention.
Detailed description of the invention
Synchronize connection jumping method as it is shown in figure 1, bipolar under the ground connection method of operation in the HVDC transmission system station of the present invention, comprise the following steps:
A0. by the logic operation cycle time of the direct current station Ore-controlling Role of rectification side and inverter side and bipolar pole control system；By the logic operation cycle time of the direct current station Ore-controlling Role of rectification side and inverter side and bipolar pole control system, movement time bipolar during bipolar jumping can be shortened further poor, more reliable safety.
A. the single valve group generation locking of the negative pole of the single valve group of the positive pole of the single valve group of the negative pole of the single valve group of the positive pole of the positive pole of rectification side, the negative pole of rectification side, rectification side, rectification side, the positive pole of inverter side, the negative pole of inverter side, inverter side or inverter side or emergency outage, occur the pole control system of the pole of locking or emergency outage or valve group control system to perform locking or emergency outage flow process；Simultaneously, if the positive pole of rectification side, the negative pole of rectification side, the positive pole of inverter side or the negative pole generation locking of inverter side or emergency outage, locking or emergency outage signal are sent to the direct current station Ore-controlling Role of homonymy by the pole control system that the pole of locking or emergency outage then occurs, if the single valve group of the positive pole of rectification side, the single valve group of the negative pole of rectification side, the single valve group generation locking of the single valve group of the positive pole of inverter side or the negative pole of inverter side or emergency outage, then locking or emergency outage signal are sent to the pole control system of the pole at this valve control system place by the valve control system of the valve group of locking or emergency outage, the pole control system of the pole at this valve control system place is then forwarded to the direct current station Ore-controlling Role of homonymy；
If B. the direct current station Ore-controlling Role of rectification side receives locking or the emergency outage signal that the pole control system of the negative or positive electrode of rectification side sends, then by High-speed Control bus, emergency outage signal is sent simultaneously to the positive pole of rectification side and the pole control system of negative pole；If the direct current station Ore-controlling Role of inverter side receives locking or the emergency outage signal that the pole control system of the negative or positive electrode of inverter side sends, then by High-speed Control bus, block signal is sent simultaneously to the positive pole of inverter side and the pole control system of negative pole；
C. the positive pole of rectification side and the pole control system of negative pole are after the emergency outage signal that the direct current station Ore-controlling Role receiving homonymy sends over, and the positive pole of rectification side and negative pole are performed both by emergency outage flow process；The positive pole of inverter side and the pole control system of negative pole after the block signal that the direct current station Ore-controlling Role receiving homonymy sends over, inverter side positive pole and negative pole be performed both by locking flow process.
Wherein, owing to locking or emergency outage signal complete to transmit by High-speed Control bus, owing to the transfer rate of High-speed Control bus is very fast, thus the time needed for locking/emergency outage signal transmission is shorter, more reliable safety.After receiving, due to the direct current station Ore-controlling Role of rectification side, the locking or emergency outage signal that the pole control system of the negative or positive electrode of rectification side sends, the signal being sent to the positive pole of rectification side and the pole control system of negative pole is emergency outage signal (ESOF), this is conducive to rectification side quickly to cut off alternating current power supply, quickly reduces DC current；After the direct current station Ore-controlling Role of inverter side receives the locking or emergency outage signal that the pole control system of the negative or positive electrode of inverter side sends, the signal being sent to the positive pole of inverter side and the pole control system of negative pole is block signal (Block), owing to locking flow process is not turned off the alternating current power supply of inverter side, this be conducive to inverter side quickly by straight-flow system energy back to alternating current power supply, comparing emergency outage flow process, locking flow process can reduce the risk that inverter side DC fields spark gap damages.
The method can ensure another pole also locking simultaneously or emergency outage when the pole locking of the same side (rectification side or inverter side) or emergency outage, bipolar can be avoided to there is out-of-balance current, electric current is avoided to enter grounded screen in station, it is ensured that station equipment and personal safety.
Above-listed detailed description is illustrating for one of present invention possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present invention, and all equivalences done without departing from the present invention are implemented or change, and are intended to be limited solely by the scope of the claims of this case.
Claims (2)
1. in HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method, it is characterised in that: the method comprises the following steps:
A. the single valve group generation locking of the negative pole of the single valve group of the positive pole of the single valve group of the negative pole of the single valve group of the positive pole of the positive pole of rectification side, the negative pole of rectification side, rectification side, rectification side, the positive pole of inverter side, the negative pole of inverter side, inverter side or inverter side or emergency outage, occur the pole control system of the pole of locking or emergency outage or valve control system to perform locking or emergency outage flow process；Simultaneously, if the positive pole of rectification side, the negative pole of rectification side, the positive pole of inverter side or the negative pole generation locking of inverter side or emergency outage, locking or emergency outage signal are sent to the direct current station Ore-controlling Role of homonymy by the pole control system that the pole of locking or emergency outage then occurs, if the single valve group of the positive pole of rectification side, the single valve group of the negative pole of rectification side, the single valve group generation locking of the single valve group of the positive pole of inverter side or the negative pole of inverter side or emergency outage, then locking or emergency outage signal are sent to the pole control system of the pole at this valve control system place by the valve control system of the valve group of locking or emergency outage, the pole control system of the pole at this valve control system place is then forwarded to the direct current station Ore-controlling Role of homonymy；
If B. the direct current station Ore-controlling Role of rectification side receives locking or the emergency outage signal that the pole control system of the negative or positive electrode of rectification side sends, then by High-speed Control bus, emergency outage signal is sent simultaneously to the positive pole of rectification side and the pole control system of negative pole；If the direct current station Ore-controlling Role of inverter side receives locking or the emergency outage signal that the pole control system of the negative or positive electrode of inverter side sends, then by High-speed Control bus, block signal is sent simultaneously to the positive pole of inverter side and the pole control system of negative pole；
C. the positive pole of rectification side and the pole control system of negative pole are after the emergency outage signal that the direct current station Ore-controlling Role receiving homonymy sends over, and the positive pole of rectification side and negative pole are performed both by emergency outage flow process；The positive pole of inverter side and the pole control system of negative pole after the block signal that the direct current station Ore-controlling Role receiving homonymy sends over, inverter side positive pole and negative pole be performed both by locking flow process.
2. in HVDC transmission system station according to claim 1, under the ground connection method of operation, bipolar synchronization joins jumping method, it is characterised in that: also include step A0 before described step A: by the logic operation cycle time of the direct current station Ore-controlling Role of rectification side and inverter side and bipolar pole control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536117.1A CN104362659B (en) | 2014-10-11 | 2014-10-11 | In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536117.1A CN104362659B (en) | 2014-10-11 | 2014-10-11 | In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104362659A CN104362659A (en) | 2015-02-18 |
| CN104362659B true CN104362659B (en) | 2016-07-27 |
Family
ID=52529897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410536117.1A Expired - Fee Related CN104362659B (en) | 2014-10-11 | 2014-10-11 | In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104362659B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453388B (en) * | 2017-09-20 | 2019-08-02 | 南方电网科学研究院有限责任公司 | Valve bank ESOF control method of hybrid direct-current transmission system and hybrid direct-current transmission system |
| CN113098048B (en) * | 2021-05-21 | 2022-05-27 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Protection control method for avoiding bipolar locking of direct-current power transmission system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1506752A (en) * | 1974-07-10 | 1978-04-12 | Asea Ab | Control system for rectifier equipment |
| CA1114892A (en) * | 1977-03-19 | 1981-12-22 | Michael Hausler | Method of taking a pole of a high-voltage d-c transmission station out of service |
-
2014
- 2014-10-11 CN CN201410536117.1A patent/CN104362659B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1506752A (en) * | 1974-07-10 | 1978-04-12 | Asea Ab | Control system for rectifier equipment |
| CA1114892A (en) * | 1977-03-19 | 1981-12-22 | Michael Hausler | Method of taking a pole of a high-voltage d-c transmission station out of service |
Non-Patent Citations (3)
| Title |
|---|
| 交流1000kV特高压输电线路继电保护特殊问题研究;柴济民 等;《第六届输配电技术国际会议论文集》;20071231;第90至95页 * |
| 高压直流输电换流站控制系统设计研究;黄静;《荆楚理工学院学报》;20090731;第24卷(第7期);第19至23页 * |
| 高压直流输电控制保护技术及其应用;陶瑜，韩伟;《电力设备》;20041130;第5卷(第11期);第4至8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104362659A (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106374380B9 (en) | Uninterrupted power extension function module and extension method for GIS bus standby interval | |
| CN103730945B (en) | Quick power switching method and system | |
| CN204732697U (en) | A kind of remote-control apparatus of high-voltage ring network switch cabinet | |
| CN103001254B (en) | Alternating current-direct current hybrid micro-grid system | |
| CN107240883B (en) | Function module for uninterrupted power extension bus of GIS and extension method | |
| CN103401259A (en) | Seamless switching control method for energy storage system | |
| CN104362659B (en) | In HVDC transmission system station, under the ground connection method of operation, bipolar synchronization joins jumping method | |
| CN104333123A (en) | Access control equipment of access control system | |
| CN104079065A (en) | Method for making mobile power generation system be connected into power grid for operation in synchronous grid connection mode | |
| CN204732777U (en) | A kind of cable line uninterrupted operation system | |
| CN103532096A (en) | Method for eliminating defect in 10kV feeder protection device without cutting off power | |
| WO2014053989A3 (en) | A method and a system for a fast bus transfer in an electrical power system | |
| CN104362660B (en) | The bipolar operation method of earthing mode in HVDC transmission system station | |
| CN104218670B (en) | A kind of super-container vessel power interruption recovering starting method | |
| CN104734119A (en) | Self-protection method of battery charger system when parallel operation charging is realized through CAN communication | |
| CN104092193A (en) | 10kV power distribution network mixed line fault processing method | |
| CN104092299B (en) | A kind of flexible direct current power transmission system automatic blocking method | |
| CN202978004U (en) | Unilaterally/uninterruptedly-powered extensible-type ring main unit | |
| CN203623399U (en) | Rapid charging insertion and extraction system capable of preventing relay from losing efficacy | |
| CN104362611B (en) | Bipolar synchronization solution/blocking method under earthing mode in HVDC transmission system station | |
| CN203896038U (en) | Emergency generator car with power supply rapid switching apparatus | |
| CN204761029U (en) | Connect electric system temporarily with phase shifting transformer | |
| CN102723737A (en) | Control method based on micro-grid multi-energy | |
| CN107887983B (en) | Co-building monitoring system and co-building method for extra-high voltage transformer substation and converter station | |
| CN203850641U (en) | Optimized 110kV cable wiring structure capable of realizing fault fast isolation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20160727 Termination date: 20181011 |