CN112615352B - Quick far backup protection device of transformer substation - Google Patents
Quick far backup protection device of transformer substation Download PDFInfo
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- CN112615352B CN112615352B CN202011465912.8A CN202011465912A CN112615352B CN 112615352 B CN112615352 B CN 112615352B CN 202011465912 A CN202011465912 A CN 202011465912A CN 112615352 B CN112615352 B CN 112615352B
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- transformer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
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- 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
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to the technical field of power equipment, and discloses a rapid far backup protection device for a transformer substation, which is arranged on three transformer substations, and comprises: the communication module is arranged in the middle among the first transformer substation, the second transformer substation and the third transformer substation and used for sending signals among the transformer substations connected by the direct power transmission line; the first remote protection and the second remote protection adopt an ultra-fast pilot waveform comparison protection algorithm to shorten the action time of a protection criterion, leave enough time margin for information uploading, issuing and processing links and realize effective matching of in-situ protection and remote protection; and the time delay element is used for delaying a period of time and then sending out the current after receiving the current. The quick far backup protection device for the transformer substation ensures that the far backup protection device for the transformer substation has a clear intelligent terminal configuration principle, also realizes the optimal matching of wide area protection and in-situ protection, and can greatly improve the protection reliability of the transformer substation.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a quick remote backup protection device for a transformer substation.
Background
The power system protection is divided into main protection and backup protection. Backup protections can be divided into far backup protections and near backup protections. The far backup protection is backup protection realized by protection of adjacent power equipment or lines when the main protection or the circuit breaker fails, for example, the backup protection of a transformer is far backup of the lines. The near backup protection is backup protection realized by another set of protection of the power equipment or the line when the main protection refuses to operate, for example, zero sequence protection and distance protection of the line are mutually backup.
The far backup protection is backup protection realized by protection of adjacent power equipment or lines when the main protection or the circuit breaker fails, for example, the backup protection of a transformer is far backup of the lines. The far backup protection is an important protection for the safe and stable operation of the power system. The technical rules of relay protection and setting rules require that complete main protection must be installed on power equipment and circuits of a power system. The protected equipment of the system only has main protection and near backup protection and cannot realize the backup protection function of the next-level transformer substation.
The backup protection device used by the current transformer substation is clear and definite only based on a terminal configuration principle, and cannot realize the cooperative cooperation of wide area protection and on-site protection, so that the heat preservation reliability of the transformer substation cannot be stabilized, and the rapid remote backup protection device for the transformer substation is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rapid remote backup protection device for a transformer substation, which ensures that the remote backup protection device for the transformer substation has a clear intelligent terminal configuration principle, emphasizes the advantages that the opening and the closing of each set of intelligent terminal are completely the same, and also realizes the optimal matching of wide area protection and in-situ protection, so that the protection reliability of the transformer substation can be greatly improved, and the like.
In order to realize the above-mentioned guarantee that the far backup protection device of the transformer substation has a clear intelligent terminal configuration principle, emphasize that the opening and the closing of each set of intelligent terminal should be completely the same, and also realize the optimal matching of wide area protection and on-site protection, and then can greatly improve the protection reliability of the transformer substation, the invention provides a quick far backup protection device of the transformer substation, which is characterized in that: set up on three transformer substations, the quick far back-up protection device of transformer substation includes:
the communication module is arranged in the middle among the first transformer substation, the second transformer substation and the third transformer substation and used for sending signals among the transformer substations connected by the direct power transmission line;
the first remote protection and the second remote protection adopt an ultra-fast pilot waveform comparison protection algorithm to shorten the action time of a protection criterion, leave enough time margin for information uploading, issuing and processing links and realize effective matching of in-situ protection and remote protection;
the time delay element is used for delaying a period of time and then sending out current after receiving the current;
the intelligent terminal of the side breaker acts on GOOSE network to perform protection tripping;
the intelligent interrupt terminal acts on the GOOSE network to trip through the intelligent interrupt terminal;
the non-electric quantity protection is used as the main protection of the transformer and does not depend on any equipment with a CPU (Central processing Unit) so as to ensure the tripping reliability of the transformer.
Preferably, the in-situ protection cooperates with the first remote protection and the second remote protection to act on the input end of the time delay element, and the processing of the first remote protection and the second remote protection is completed in sequence.
Preferably, the output action end of the delay element is connected with an in-situ device self-check, and the in-situ device self-check is used for carrying out self-check processing on the signals protected in situ.
Preferably, the output action end of the starting signal is connected with the self-checking of the local device, and the starting signal is used for waking up the self-checking of the local device.
Preferably, the output action end of the on-site device self-check is connected with a line protection, and the line protection acts on the protection processing of the transformer substation.
Preferably, the line protection output action terminal is connected with the GOOSE network, and a overlook is arranged between the line protection terminal and the GOOSE network.
Preferably, the output action end of the GOOSE network is connected with the side breaker intelligent terminal and the middle breaker intelligent terminal respectively.
Preferably, the output action ends of the side breaker intelligent terminal and the middle breaker intelligent terminal are connected with the non-electric quantity protection.
Compared with the prior art, the invention provides a rapid remote backup protection device for a transformer substation, which has the following beneficial effects:
the fast remote backup protection device for the transformer substation is used by coordinating local protection through first remote protection and second remote protection, then local protection, the first remote protection and the second remote protection are sequentially subjected to time delay processing through a time delay element, then local device self-detection processing is performed through a starting signal, the local protection, the first remote protection and the second remote protection are detected without problems, and then the local protection, the first remote protection and the second remote protection are conveyed to be subjected to line protection processing, a GOOSE network can be used for tripping under the action of a breaker intelligent terminal, and a GOOSE network is used for tripping under the action of an interruption intelligent terminal, so that remote backup protection for the transformer substation is realized, the remote backup protection device for the transformer substation is ensured to have a clear intelligent terminal configuration principle, the condition that the opening and the opening of each set of intelligent terminals are completely the same, the optimal matching of wide area protection and the local protection is also realized, and the protection reliability of the transformer substation can be greatly improved.
Drawings
FIG. 1 is a schematic view of the present invention in elevation cut-away configuration;
FIG. 2 is a side view of the present invention shown in FIG. 1.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-2, a fast far backup protection device for a transformer substation is characterized in that: set up on three transformer substation, the quick far back-up protection device of transformer substation includes:
the communication module is arranged in the middle among the first transformer substation, the second transformer substation and the third transformer substation and used for sending signals among the transformer substations connected by the direct power transmission line;
the first remote protection and the second remote protection adopt an ultra-fast pilot waveform comparison protection algorithm to shorten the action time of the protection criterion, reserve enough time margin for information uploading, issuing and processing links, and realize the effective matching of in-situ protection and remote protection;
the time delay element is used for delaying a period of time and then sending out current after receiving the current;
the intelligent terminal of the side breaker acts on GOOSE network to perform protection tripping;
the intelligent interrupt terminal acts on the GOOSE network to trip through the intelligent interrupt terminal;
the non-electric quantity protection is used as the main protection of the transformer and does not depend on any equipment with a CPU (Central processing Unit) so as to ensure the tripping reliability of the transformer.
The quick far backup protection device for the transformer substation ensures that the far backup protection device for the transformer substation has a clear intelligent terminal configuration principle, emphasizes that the opening and the closing of each set of intelligent terminal are completely the same, also realizes the optimal matching of wide area protection and on-site protection, and can greatly improve the protection reliability of the transformer substation.
The local protection cooperates with the first remote protection and the second remote protection to act on the input end of the time delay element, and the processing of the first remote protection and the second remote protection is completed in sequence; the output action end of the delay element is connected with the local device self-check, and the local device self-check is used for carrying out self-check processing on the signals of the local protection; the output action end of the starting signal is connected with the local device self-check, and the starting signal is used for awakening the local device self-check; the output action end of the on-site device self-checking is connected with the line protection, and the line protection acts on the protection processing of the transformer substation; the line protection output action end is connected with the GOOSE network, and a overlook is arranged between the line protection output action end and the GOOSE network; the output action end of the GOOSE network is respectively connected with the side breaker intelligent terminal and the middle breaker intelligent terminal; and the output action ends of the side breaker intelligent terminal and the middle breaker intelligent terminal are connected with the non-electric quantity protection.
When the remote backup protection device works, firstly, the first remote protection and the second remote protection are used in cooperation with the local protection, then the local protection, the first remote protection and the second remote protection are sequentially subjected to delay processing through a delay element, then the local device self-checking processing is performed through a starting signal, the local protection, the first remote protection and the second remote protection are transmitted to be subjected to line protection processing after no problem exists, the GOOSE network can be used as a GOOSE network for tripping through line protection, and the intelligent terminal for the interrupt network is used as a GOOSE network for tripping through an intelligent terminal of an interrupt device, so that the remote backup protection of a transformer substation is realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a quick far back-up protection device of transformer substation which characterized in that: set up on three transformer substations, the quick far back-up protection device of transformer substation includes:
the communication module is arranged in the middle among the first transformer substation, the second transformer substation and the third transformer substation and used for sending signals among the transformer substations connected by the direct power transmission line;
the first remote protection and the second remote protection adopt an ultra-fast pilot waveform comparison protection algorithm to shorten the action time of a protection criterion, leave enough time margin for information uploading, issuing and processing links and realize effective matching of in-situ protection and remote protection;
the time delay element is used for delaying a period of time and then sending out current after receiving the current;
the intelligent side breaker terminal is used for acting on GOOSE network line protection tripping;
the intelligent terminal of the middle breaker acts on the trip of the GOOSE network through the intelligent terminal of the interrupt breaker;
the non-electric protection is taken as the main protection of the transformer and does not depend on any equipment with a CPU (central processing unit) so as to ensure the tripping reliability of the transformer;
the local protection cooperates with the first remote protection and the second remote protection to act on the input end of the time delay element, and the processing of the first remote protection and the second remote protection is completed in sequence;
the output action end of the delay element is connected with the self-checking of the on-site device, and the self-checking of the on-site device is used for carrying out self-checking processing on signals of on-site protection;
the output action end of the starting signal is connected with the self-checking of the in-place device, and the starting signal is used for awakening the self-checking of the in-place device;
the output action end of the on-site device self-checking is connected with the line protection, and the line protection acts on the protection processing of the transformer substation;
the line protection output action end is connected with the GOOSE network, and a overlook is arranged between the line protection and the GOOSE network;
the output action end of the GOOSE network is respectively connected with the side breaker intelligent terminal and the middle breaker intelligent terminal;
and the output action ends of the edge breaker intelligent terminal and the middle breaker intelligent terminal are connected with the non-electric quantity protection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011465912.8A CN112615352B (en) | 2020-12-14 | 2020-12-14 | Quick far backup protection device of transformer substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011465912.8A CN112615352B (en) | 2020-12-14 | 2020-12-14 | Quick far backup protection device of transformer substation |
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| CN112615352A CN112615352A (en) | 2021-04-06 |
| CN112615352B true CN112615352B (en) | 2023-02-17 |
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Citations (4)
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| CN104505941A (en) * | 2014-12-18 | 2015-04-08 | 国网浙江省电力公司培训中心 | Monitoring system and simulating running system for intelligent substation network |
| CN105162092A (en) * | 2015-08-27 | 2015-12-16 | 南京南瑞继保电气有限公司 | Local fault judgment method for remote trip protection |
| CN108539718A (en) * | 2018-06-20 | 2018-09-14 | 国网河南省电力公司电力科学研究院 | A kind of quick remote backup protection system of substation and guard method |
| CN111863525A (en) * | 2020-07-22 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Gas relay for transformer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059068B (en) * | 2016-05-25 | 2019-02-26 | 国网山东省电力公司青岛供电公司 | A kind of framework of internal bridge formula transformer station process layer |
| CN110165642B (en) * | 2019-06-26 | 2021-12-21 | 广东电网有限责任公司 | Wide area protection method, device and equipment for dealing with direct current voltage loss of adjacent transformer substations |
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2020
- 2020-12-14 CN CN202011465912.8A patent/CN112615352B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104505941A (en) * | 2014-12-18 | 2015-04-08 | 国网浙江省电力公司培训中心 | Monitoring system and simulating running system for intelligent substation network |
| CN105162092A (en) * | 2015-08-27 | 2015-12-16 | 南京南瑞继保电气有限公司 | Local fault judgment method for remote trip protection |
| CN108539718A (en) * | 2018-06-20 | 2018-09-14 | 国网河南省电力公司电力科学研究院 | A kind of quick remote backup protection system of substation and guard method |
| CN111863525A (en) * | 2020-07-22 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Gas relay for transformer |
Non-Patent Citations (1)
| Title |
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| 陈乐 等."基于波形相似度比较的线路快速纵联保护研究".《中国电机工程学报》.2017,第37卷(第17期),第5019-5027页. * |
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Effective date of registration: 20230116 Address after: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant after: STATE GRID SHANDONG ELECTRIC POWER COMPANY YANTAI POWER SUPPLY Co. Address before: 264000 Jiefang Road 158, Zhifu District, Yantai, Shandong Applicant before: STATE GRID SHANDONG ELECTRIC POWER COMPANY YANTAI POWER SUPPLY Co. Applicant before: STATE GRID CORPORATION OF CHINA |
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