CN103633619B - Based on the main transformer backup protection Accelerated trip method sharing information across interval - Google Patents
Based on the main transformer backup protection Accelerated trip method sharing information across interval Download PDFInfo
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- CN103633619B CN103633619B CN201310699125.3A CN201310699125A CN103633619B CN 103633619 B CN103633619 B CN 103633619B CN 201310699125 A CN201310699125 A CN 201310699125A CN 103633619 B CN103633619 B CN 103633619B
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Abstract
The invention belongs to technical field of power systems, particularly relate to a kind of main transformer backup protection Accelerated trip method based on information shared across interval being applied to intelligent substation.The present invention is one Accelerated trip logic of increase in the medium/low pressure rear flank of main transformer is for defencive function, and main transformer mesolow rear flank realizes accelerating differentiation across the shared information being spaced for Sustainable use.The positional information of mother section switch is sent in main transformer protection by the present invention; realize accelerating to jump main transformer each side chopper under mother divides position or mother charge condition; thus shorten the trip time, there is the remarkable advantages such as the quick-action improving protection, the performance of lifting protection.
Description
Technical field
The invention belongs to technical field of power systems, particularly relate to a kind of be applied to intelligent substation based on across interval altogether
Enjoy the main transformer backup protection Accelerated trip method of information.
Background technology
Main transformer protection is made up of main protection and various back-up protection, back-up protection contain high-pressure side and in, low pressure survey
Protection.Common, the switching value that main transformer protection is gathered includes the high, medium and low three side circuit breaker positions of main transformer, does not gather each survey
Mother section switch positional information.When each side trip protection logic meets, the order of tripping operation is first to jump each side of main transformer
Main transformer each side chopper jumped again by mother section switch, as shown in Fig. 3 bold portion.According to this Trip Logic, if mother divides position
Or under mother charge condition, this drives mother section switch to trip without sending out trip signal again to mother intelligent terminal, but by
In main transformer protection and be unaware of its deciliter situation, therefore the regular hour can be wasted.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the present invention provides a kind of based on the master sharing information across interval
Become back-up protection Accelerated trip method.Purpose is to be sent in main transformer protection, the positional information of mother section switch mother
Realize under connection point position or mother charge condition accelerating to jump main transformer each side chopper, thus shorten the trip time, improve the speed of protection
Dynamic property, promotes the performance of protection.
In order to realize foregoing invention purpose, the present invention is achieved through the following technical solutions:
Main transformer backup protection Accelerated trip method based on information shared across interval, is standby in the medium/low pressure rear flank of main transformer
Increasing an Accelerated trip logic in defencive function, main transformer mesolow rear flank realizes across the shared information at interval for Sustainable use
Accelerate to differentiate；
Under adopting net hop pattern at main transformer protection net, due to main transformer high pressure, mesolow side mother positional information by it
Corresponding mother interval intelligent terminal is sent to during each top-cross changes planes, and main transformer protection is connected to main transformer high-pressure side switch and master
Become mesolow top-cross to change planes, mother positional information can be realized and be passed in main transformer protection；
Under directly adopting straight hop pattern at main transformer, main transformer protection is set up three fibre circuits and is connected respectively to main transformer high pressure
On the mother interval intelligent terminal that side, medium voltage side and low-pressure side are corresponding, to realize the function that mother information is directly adopted；
No matter directly adopting straight jump or net is adopted under net hop pattern, main transformer protection is first with transmitting the analogue quantity switch amount of coming
Information carries out the Trip Logic of back-up protection and differentiates, if now main transformer protection judges that transformator side chopper should trip, then
Differentiate whether this side bus is in a point position/charged state, the most direct this side chopper of tripping main transformer again；
If it is not, then according to the tripping operation order under general case, i.e. first this side bus of tripping, then this side main transformer open circuit of tripping
Device.
The section switch information of its correspondence is sent to main transformer in GOOSE mode and protects by described mother interval intelligent terminal
In protecting.
Described mother interval intelligent terminal with the connection of main transformer protection is: net is adopted under net hop pattern without increasing any light
Fine；Directly adopting needs to increase an optical fiber and mother is spaced intelligent terminal is connected with main transformer protection under straight hop pattern.
Described main transformer mesolow rear flank realizes accelerating to differentiate across the shared information being spaced for Sustainable use, is in tripping operation
In the case of logic meets, if now the position of main transformer each side mother section switch is for dividing under position or charge condition, main transformer
Protect without the most first sending out the trip command section switch to each side bus, directly send out trip signal to each side intelligent terminal i.e.
Can；If now the position of main transformer each side mother section switch is for closing position, then trips by common wavy trajectory, the most first jump
Each side mother section switch, then jump main transformer each side chopper.
Described main transformer mesolow rear flank realizes accelerating to differentiate, no matter directly across the shared information being spaced for Sustainable use
Adopting straight still net of jumping and adopt under net hop pattern, main transformer protection carries out back-up protection first with transmitting the analogue quantity switch amount information come
Trip Logic differentiate, if now main transformer protection judges that transformator side chopper should trip, differentiate that this side mother is disconnected the most again
Whether road device is in a point position/charged state, the most direct this side chopper of tripping main transformer；If it is not, then according to commonly
In the case of tripping operation order, i.e. first this side bus of tripping, then this side main transformer chopper of tripping.
Advantages of the present invention and providing the benefit that: the positional information of mother section switch is sent to main transformer and protects by the present invention
In protecting, realize accelerating to jump main transformer each side chopper under mother divides position or mother charge condition, thus shorten the trip time, have
Improve the remarkable advantages such as the quick-action of protection, the performance of lifting protection.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 is that before and after the present invention uses Accelerated trip method, main transformer protection typical case connection figure under net hop pattern adopted by net；
Fig. 2 is directly to adopt main transformer protection typical case connection figure under straight hop pattern before and after the present invention uses Accelerated trip method；
Fig. 3 is main transformer backup protection tripping operation flow chart in prior art；
Fig. 4 is main transformer backup protection tripping operation flow chart under Accelerated trip pattern of the present invention.
Detailed description of the invention
The present invention is a kind of main transformer backup protection Accelerated trip method based on information shared across interval, and specifically one should
Main transformer backup protection Accelerated trip method in intelligent substation, is the position utilizing main transformer each side mother section switch
Information discriminates whether to be accelerated trip operation, increases an Accelerated trip in the medium/low pressure rear flank of main transformer is for defencive function
Logic, is mainly used in back-up protection in main transformer protection, it is achieved the Accelerated trip of back-up protection.
Described main transformer mesolow rear flank realizes accelerating to differentiate across the shared information being spaced for Sustainable use, is in tripping operation
In the case of logic meets, if now the position of main transformer each side mother section switch is for dividing under position or charge condition, main transformer
Protect without the most first sending out the trip command section switch to each side bus, directly send out trip signal to each side intelligent terminal i.e.
Can；If now the position of main transformer each side mother section switch is for closing position, then trips by common wavy trajectory, the most first jump
Each side mother section switch, then jump main transformer each side chopper.
Described mother interval intelligent terminal with the connection of main transformer protection is: net is adopted under net hop pattern without increasing any light
Fine；Directly adopt lower of straight hop pattern to increase an optical fiber and mother is spaced intelligent terminal is connected with main transformer protection.
When being embodied as, main transformer mesolow rear flank realizes accelerating to differentiate across the shared information being spaced for Sustainable use, from
And shorten the trip time, improve the quick-action of protection, promote the performance of protection
(1) under net hop pattern adopted by main transformer protection net, due to main transformer high pressure, mesolow side mother positional information by it
Corresponding intelligent terminal is sent to during each top-cross changes planes with the form of GOOSE, and main transformer protection is connected to the exchange of main transformer high-pressure side
Machine and main transformer mesolow top-cross are changed planes, it is therefore not necessary to increase any equipment and connecting line can to realize mother positional information incoming
In main transformer protection, as shown in Figure 1；Under main transformer directly adopts straight hop pattern, on main transformer protection, newly-increased three fibre circuits are direct
Link on the mother interval intelligent terminal that main transformer high-pressure side, medium voltage side and low-pressure side are corresponding, to realize the merit that mother information is directly adopted
Can, as shown in Figure 2.
(2) no matter directly adopting straight jump or net is adopted under net hop pattern, main transformer protection is opened first with transmitting the analog quantity come
Pass amount information carries out the Trip Logic of back-up protection and differentiates, if now main transformer protection judges that transformator side chopper should be jumped
Lock, differentiates whether this side bus is in a point position/charged state, the most direct this side chopper of tripping main transformer the most again
?；If it is not, then according to the tripping operation order under general case, i.e. first this side bus of tripping, then this side main transformer of tripping
Chopper, as shown in Figure 4.
Above in conjunction with accompanying drawing, invention has been described, but the invention is not limited in above-mentioned specific embodiment party
Formula, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that a lot of form, and these belong to
Within protection scope of the present invention.
Claims (1)
1. based on the main transformer backup protection Accelerated trip method sharing information across interval, it is characterised in that: it is medium/low at main transformer
Pressure rear flank in defencive function increase an Accelerated trip logic, main transformer mesolow rear flank for Sustainable use across interval shared letter
Breath realizes accelerating to differentiate；
Under adopting net hop pattern at main transformer protection net, corresponding by it due to main transformer high pressure, mesolow side mother positional information
Mother interval intelligent terminal be sent to during each top-cross changes planes, and main transformer protection is connected in main transformer high-pressure side switch and main transformer
Low-pressure side switch, can realize mother positional information and be passed in main transformer protection；
Under directly adopting straight hop pattern at main transformer, main transformer protection is set up three fibre circuits be connected respectively to main transformer high-pressure side,
Medium voltage side and low-pressure side corresponding mother interval intelligent terminal on, to realize the function that mother information is directly adopted；
No matter directly adopting straight jump or net is adopted under net hop pattern, main transformer protection is first with transmitting the analogue quantity switch amount information of coming
The Trip Logic carrying out back-up protection differentiates, if now main transformer protection judges that transformator side chopper should trip, sentences the most again
Whether not this side bus is in a point position/charged state, the most direct this side chopper of tripping main transformer；If no
Be, then according to the tripping operation order under general case, i.e. first this side bus of tripping, then this side main transformer chopper of tripping；
The section switch information of its correspondence is sent to main transformer protection in GOOSE mode by described mother interval intelligent terminal
In；
Described mother interval intelligent terminal with the connection of main transformer protection is: net is adopted under net hop pattern without increasing any optical fiber；
Directly adopting needs to increase an optical fiber and mother is spaced intelligent terminal is connected with main transformer protection under straight hop pattern；
Described main transformer mesolow rear flank realizes accelerating to differentiate across the shared information being spaced for Sustainable use, is in Trip Logic
In the case of Man Zuing, if now the position of main transformer each side mother section switch is for dividing under position or charge condition, main transformer protection
Without the most first sending out the trip command section switch to each side bus, directly send out trip signal to each side intelligent terminal；If
Now the position of main transformer each side mother section switch is for closing position, then trip by common wavy trajectory, the most first jump each side
Mother section switch, then jump main transformer each side chopper.
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| CN201310699125.3A CN103633619B (en) | 2013-12-19 | 2013-12-19 | Based on the main transformer backup protection Accelerated trip method sharing information across interval |
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| CN201310699125.3A CN103633619B (en) | 2013-12-19 | 2013-12-19 | Based on the main transformer backup protection Accelerated trip method sharing information across interval |
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| CN103633619A CN103633619A (en) | 2014-03-12 |
| CN103633619B true CN103633619B (en) | 2016-08-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319743B (en) * | 2014-05-30 | 2017-06-16 | 许继电气股份有限公司 | The method and apparatus of the main transformer high-pressure side Fast Operating Backup Protection based on station domain information |
| CN104407244B (en) * | 2014-11-21 | 2024-04-09 | 国家电网公司 | Main Transformer Tripping Matrix Test System |
| CN105262064B (en) * | 2015-10-29 | 2018-02-09 | 浙江大学 | A kind of station domain back-up protection method that can be used for simplifying transformer in-situ back-up protection |
| CN106505534B (en) * | 2016-11-17 | 2018-09-21 | 云南电网有限责任公司电力科学研究院 | Multistage circuit longitudinal distance protection system and method |
| CN110364996B (en) * | 2019-07-24 | 2021-08-20 | 国家电网有限公司 | Protection device for improving service power supply reliability |
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| US5790356A (en) * | 1994-10-13 | 1998-08-04 | Bottrell; Gerald W. | Transformer protection system for protecting source transformers from ill effects of zero-sequence currents |
| CN1725590A (en) * | 2005-06-28 | 2006-01-25 | 山东大学 | Step down transformer and relay protection method of middle low voltage side bus |
| CN201601480U (en) * | 2009-12-31 | 2010-10-06 | 南京弘毅电气自动化有限公司 | Arc light protecting system |
| CN101431230B (en) * | 2008-12-17 | 2010-12-01 | 中国南方电网有限责任公司 | Transforming plant integrated protection system based on IEC61850 |
| CN101964548B (en) * | 2010-11-12 | 2012-09-12 | 国电南瑞科技股份有限公司 | Comprehensive intelligent assembly of power transformer |
| CN102723697A (en) * | 2012-06-20 | 2012-10-10 | 湖州电力局 | Method for implementing intelligent tripping for back-up protection of transformer |
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2013
- 2013-12-19 CN CN201310699125.3A patent/CN103633619B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5790356A (en) * | 1994-10-13 | 1998-08-04 | Bottrell; Gerald W. | Transformer protection system for protecting source transformers from ill effects of zero-sequence currents |
| CN1725590A (en) * | 2005-06-28 | 2006-01-25 | 山东大学 | Step down transformer and relay protection method of middle low voltage side bus |
| CN101431230B (en) * | 2008-12-17 | 2010-12-01 | 中国南方电网有限责任公司 | Transforming plant integrated protection system based on IEC61850 |
| CN201601480U (en) * | 2009-12-31 | 2010-10-06 | 南京弘毅电气自动化有限公司 | Arc light protecting system |
| CN101964548B (en) * | 2010-11-12 | 2012-09-12 | 国电南瑞科技股份有限公司 | Comprehensive intelligent assembly of power transformer |
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