CN102035082A - Direct current grounding system and method thereof - Google Patents
Direct current grounding system and method thereof Download PDFInfo
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- CN102035082A CN102035082A CN2009101968023A CN200910196802A CN102035082A CN 102035082 A CN102035082 A CN 102035082A CN 2009101968023 A CN2009101968023 A CN 2009101968023A CN 200910196802 A CN200910196802 A CN 200910196802A CN 102035082 A CN102035082 A CN 102035082A
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- direct current
- earthing
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- grounding pole
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- 238000006243 chemical reaction Methods 0.000 claims description 15
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- 238000010586 diagram Methods 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 2
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Abstract
The invention provides a direct current grounding system and a method thereof. A plurality of direct current grounding electrodes are connected with each other in parallel by a line to form a grounding island, so that the invention can effectively disperse the direct current grounding electric current aiming at the whole power grid, thereby reducing the influence of the direct current to a peripheral transformer, and being simple and convenient to realize by the existing high-voltage line.
Description
Technical field
The present invention relates to a kind of DC earthing system and method, particularly a kind of direct current grounding pole technology that relates to, electric power network technique, the DC earthing system and method in fields such as direct current inhibition technology.
Background technology
Along with DC techniques extensive use at home and abroad, also more and more higher to the requirement of DC earthing system.Compare with the earthing device of AC system, when the DC earthing system moves in DC transmission system ground return circuit mode, need long-term by very big operating current, be generally hundreds of to thousands of amperes, thereby since one pole when operation can cause bigger influence to it to making in the electrical network transformer flow through direct current, both at home and abroad all in the various braking measures of research.
Along with the extensive use of DC techniques, during the operation of the big earthed return of direct current grounding pole one pole the transformer of AC system is influenced problem and become increasingly conspicuous.For example, the area, Shanghai has many times direct currents to land at present, when the operation of direct current grounding pole one pole, the transformer of a lot of transformer stations of periphery can produce bigger noise and vibration because of direct current, propose various direct currents for this reason and suppressed way, comprised transformer neutral point installation resistance, electric capacity and reverse direct current injection device etc.
But, use the direct current restraining device can only be, and can't eliminate or influence in the ground direct current the influence of whole AC network to direct current in the ground that suppresses the somewhere.
In view of this, how to provide a kind of DC earthing system and method, reduce above-mentioned drawback and become the technical problem that industry needs to be resolved hurrily.
Summary of the invention
Technical problem solved by the invention is to provide a kind of DC earthing system and method, at whole electrical network, can effectively disperse the direct current earth current, thereby reduces the influence of direct current to peripheral transformer.
Technical problem solved by the invention is to provide a kind of DC earthing system and method, can utilize existing high-tension line to realize simply and easily.
For solving the problems of the technologies described above, the invention provides a kind of DC earthing system, comprise a plurality of direct current grounding poles, have interconnection between described a plurality of direct current grounding poles, electrically connect with each direct current grounding pole, make each direct current grounding pole parallel connection to form the ground connection island.
Connect by a plurality of current conversion stations between described each direct current grounding pole, described interconnection is arranged between each current conversion station.
In specific embodiment, have high-tension line between each direct current grounding pole, described interconnection is laid in below the described high-tension line.Described interconnection lays by many modes, and this system also comprises the DC earthing analytical system, adjusts the distribution of each DC earthing electrode current by analysis, thereby reaches optimum parallel way.
The present invention also provides a kind of DC earthing method, is used to have the DC earthing system of a plurality of direct current grounding poles, mainly is to pass through the interconnection parallel connection between a plurality of direct current grounding poles, to form the ground connection island.
Connect by a plurality of current conversion stations between described each direct current grounding pole, described interconnection is arranged between each current conversion station.
In specific embodiment, has high-tension line between each direct current grounding pole, with the described interconnection described high-tension line below that is laid in; Described interconnection lays by many modes, adjusts the distribution of each DC earthing electrode current by analysis, thereby reaches optimum parallel way.
DC earthing system and method for the present invention with passing through the interconnection parallel connection between a plurality of direct current grounding poles, forms the ground connection island, has realized very whole electrical network effectively being disperseed the direct current earth current, thereby has reduced the influence of direct current to peripheral transformer; Utilize existing high-tension line, implement simple and convenient.
Description of drawings
Fig. 1 is a DC earthing system architecture schematic diagram of the present invention.
Fig. 2 is that the framework between DC earthing system's direct current grounding pole of the present invention and the current conversion station is implemented schematic diagram.
Embodiment
Below by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.The present invention also can be implemented or used by other different instantiations, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
The system of DC earthing described in the present invention can be applied in the direct current grounding pole technology, electric power network technique, fields such as direct current inhibition technology.
See also Fig. 1, it is DC earthing system architecture schematic diagram of the present invention, as shown in the figure, DC earthing of the present invention system, comprise a plurality of direct current grounding poles 10, has interconnection 12 between described a plurality of direct current grounding pole 10, electrically connect with each direct current grounding pole 10, make each direct current grounding pole parallel connection, the whole ground connection island that forms, like this, owing to form parallel network between each direct current grounding pole 10, so can effectively disperse the direct current earth current to whole electrical network, thereby reduce the influence of DC earthing to peripheral transformer.
In the present embodiment, connect by a plurality of current conversion stations 13 between described each direct current grounding pole, described interconnection 12 is to be that node is set up with each current conversion station 13.
In the present embodiment, be erected with high-tension line between each direct current grounding pole 10, described interconnection 12 utilizes these high-tension lines that originally just has, and lays thereunder, needn't build in addition as facilities such as stringing bars.
Seeing also Fig. 2, is that the framework between DC earthing system's direct current grounding pole of the present invention and the current conversion station is implemented schematic diagram, as shown in the figure, is connected by many circuits between described direct current grounding pole 10 and the current conversion station 13, and controls by switches set 14.And described interconnection 12 also can lay by many modes, when the DC earthing plate 10 ground connection islands that form as shown in Figure 1 in parallel are moved, by the radical of different direct current grounding pole 10 interconnections 12 that put into operation, can adjust the distribution of direct current grounding pole 10 electric currents to a certain extent; In addition, described DC earthing system also comprises the DC earthing analytical system, can reach optimum parallel way by analyzing the distribution of adjusting each direct current grounding pole 10 electric current.In the present embodiment, described DC earthing analytical system is the software systems of CDEGS, can make above-mentioned parallel way reach allocation optimum by analysis, particularly the above-mentioned interconnection that lays by many modes is carried out combinatory analysis.
The present invention also provides a kind of DC earthing method, is used to have the DC earthing system of a plurality of direct current grounding poles, mainly is to pass through interconnection 12 parallel connections between a plurality of direct current grounding poles 10, to form the ground connection island.
In the present embodiment, connect by a plurality of current conversion stations 13 between described each direct current grounding pole 10, described interconnection 12 is arranged between each current conversion station 13.
Has high-tension line between each direct current grounding pole 10, with the described interconnection 10 described high-tension line below that is laid in; Described interconnection 12 lays by many modes, adjusts the distribution of each DC earthing electrode current by analysis, thereby reaches optimum parallel way.
In sum, DC earthing system and method for the present invention is to pass through the interconnection parallel connection between a plurality of direct current grounding poles, to form the ground connection island, to have realized very whole electrical network effectively being disperseed the direct current earth current, thereby reduced the influence of direct current to peripheral transformer; Utilize existing high-tension line, implement comparatively simple and convenient.
Claims (10)
1. a DC earthing system comprises a plurality of direct current grounding poles, it is characterized in that: have interconnection between described a plurality of direct current grounding poles, electrically connect with each direct current grounding pole, make each direct current grounding pole parallel connection to form the ground connection island.
2. DC earthing as claimed in claim 1 system is characterized in that, connects by a plurality of current conversion stations between described each direct current grounding pole, and described interconnection is arranged between each current conversion station.
3. DC earthing as claimed in claim 1 system is characterized in that having high-tension line between each direct current grounding pole, the described interconnection described high-tension line below that is laid in.
4. DC earthing as claimed in claim 1 system is characterized in that described interconnection lays by many modes.
5. DC earthing as claimed in claim 4 system is characterized in that, also comprises the DC earthing analytical system, by analyzing the distribution of adjusting each DC earthing electrode current, thereby reaches optimum parallel way.
6. a DC earthing method is used to have the DC earthing system of a plurality of direct current grounding poles, it is characterized in that: with passing through the interconnection parallel connection between a plurality of direct current grounding poles, form the ground connection island.
7. DC earthing method as claimed in claim 6 is characterized in that, connects by a plurality of current conversion stations between described each direct current grounding pole, and described interconnection is arranged between each current conversion station.
8. DC earthing method as claimed in claim 6 is characterized in that, has high-tension line between each direct current grounding pole, with the described interconnection described high-tension line below that is laid in.
9. DC earthing method as claimed in claim 6 is characterized in that described interconnection lays by many modes.
10. DC earthing method as claimed in claim 9 is characterized in that, adjusts the distribution of each DC earthing electrode current by analysis, thereby reaches optimum parallel way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910196802.3A CN102035082B (en) | 2009-09-29 | 2009-09-29 | Direct current grounding system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910196802.3A CN102035082B (en) | 2009-09-29 | 2009-09-29 | Direct current grounding system and method thereof |
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| Publication Number | Publication Date |
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| CN102035082A true CN102035082A (en) | 2011-04-27 |
| CN102035082B CN102035082B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910196802.3A Active CN102035082B (en) | 2009-09-29 | 2009-09-29 | Direct current grounding system and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394428A (en) * | 2017-07-31 | 2017-11-24 | 武汉大学 | A kind of shield type direct current grounding pole and the co-located earthed system of current conversion station grounded screen |
| CN111509420A (en) * | 2020-04-24 | 2020-08-07 | 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 | Horizontal ocean grounding electrode with roundabout arrangement |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044358Y (en) * | 2007-04-30 | 2008-04-02 | 中国电力工程顾问集团中南电力设计院 | High voltage direct current transmission split type earth electrode |
| CN201060953Y (en) * | 2007-04-30 | 2008-05-14 | 中国电力工程顾问集团中南电力设计院 | High voltage DC transmission compact type earthing electrode |
-
2009
- 2009-09-29 CN CN200910196802.3A patent/CN102035082B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044358Y (en) * | 2007-04-30 | 2008-04-02 | 中国电力工程顾问集团中南电力设计院 | High voltage direct current transmission split type earth electrode |
| CN201060953Y (en) * | 2007-04-30 | 2008-05-14 | 中国电力工程顾问集团中南电力设计院 | High voltage DC transmission compact type earthing electrode |
Non-Patent Citations (2)
| Title |
|---|
| 呙虎: "《中国优秀硕士学位论文全文数据库》", 15 April 2009 * |
| 戚迎等: "±800 kV复龙换流站共用接地极设计特点", 《电力建设》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394428A (en) * | 2017-07-31 | 2017-11-24 | 武汉大学 | A kind of shield type direct current grounding pole and the co-located earthed system of current conversion station grounded screen |
| CN107394428B (en) * | 2017-07-31 | 2023-04-07 | 武汉大学 | Grounding system for co-location of shielding type direct current grounding electrode and converter station grounding grid |
| CN111509420A (en) * | 2020-04-24 | 2020-08-07 | 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 | Horizontal ocean grounding electrode with roundabout arrangement |
| CN111509420B (en) * | 2020-04-24 | 2021-09-17 | 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 | Horizontal ocean grounding electrode with roundabout arrangement |
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| Publication number | Publication date |
|---|---|
| CN102035082B (en) | 2014-04-16 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170417 Address after: 200437 Handan Road, Shanghai, No. 171, No. Co-patentee after: East China Electric Power Test & Research Institute Co., Ltd. Patentee after: Shanghai Sai Pu Le Power Technology Co. Ltd. Address before: 200437 Handan Road, Shanghai, No. 171, No. Patentee before: East China Electric Power Test & Research Institute Co., Ltd. Effective date of registration: 20170417 Address after: 200437 Handan Road, Shanghai, No. 171, No. Co-patentee after: East China Electric Power Test & Research Institute Co., Ltd. Patentee after: Shanghai Sai Pu Le Power Technology Co. Ltd. Address before: 200437 Handan Road, Shanghai, No. 171, No. Patentee before: East China Electric Power Test & Research Institute Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190930 Address after: 200437 Room 102, building 2, No.171 Handan Road, Hongkou District, Shanghai Co-patentee after: East China Electric Power Test & Research Institute Co., Ltd. Patentee after: Puneng Power Science and Technology Engineering Branch, Shanghai Hengnengtai Enterprise Management Co., Ltd. Address before: 200437 No. 171, Handan Road, Shanghai, Hongkou District Co-patentee before: East China Electric Power Test & Research Institute Co., Ltd. Patentee before: Shanghai Sai Pu Le Power Technology Co. Ltd. Effective date of registration: 20190930 Address after: 200437 Room 102, building 2, No.171 Handan Road, Hongkou District, Shanghai Co-patentee after: East China Electric Power Test & Research Institute Co., Ltd. Patentee after: Puneng Power Science and Technology Engineering Branch, Shanghai Hengnengtai Enterprise Management Co., Ltd. Address before: 200437 No. 171, Handan Road, Shanghai, Hongkou District Co-patentee before: East China Electric Power Test & Research Institute Co., Ltd. Patentee before: Shanghai Sai Pu Le Power Technology Co. Ltd. |
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| CI03 | Correction of invention patent |
Correction item: Patentee|Address|Patentee Correct: Shanghai Sai Pu Le Power Technology Co. Ltd.|200437 No. 171, Handan Road, Shanghai, Hongkou District|East China Electric Power Test & Research Institute Co., Ltd. False: Puneng Power Science and Technology Engineering Branch, Shanghai Hengnengtai Enterprise Management Co., Ltd.|200437 Room 102, building 2, No.171 Handan Road, Hongkou District, Shanghai|East China Electric Power Test & Research Institute Co., Ltd. Number: 43-02 Volume: 35 |
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Effective date of registration: 20200416 Address after: 200437 Room 102, building 2, No.171 Handan Road, Hongkou District, Shanghai Co-patentee after: EAST CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee after: SHANGHAI HENGNENGTAI ENTERPRISE MANAGEMENT CO., LTD.PUNENG POWER TECHNOLOGY ENGINEERING BRANCH Address before: 200437 No. 171, Handan Road, Shanghai, Hongkou District Co-patentee before: EAST CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee before: SHANGHAI SAIPULE ELECTRIC POWER TECHNOLOGY Co.,Ltd. |
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