CN109193585B - A kind of high-voltage alternating route protection tripping recognition sequence method - Google Patents
A kind of high-voltage alternating route protection tripping recognition sequence method Download PDFInfo
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- CN109193585B CN109193585B CN201811149215.4A CN201811149215A CN109193585B CN 109193585 B CN109193585 B CN 109193585B CN 201811149215 A CN201811149215 A CN 201811149215A CN 109193585 B CN109193585 B CN 109193585B
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- 230000004224 protection Effects 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000033001 locomotion Effects 0.000 claims abstract description 35
- 230000004927 fusion Effects 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 229910017435 S2 In Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
Abstract
The invention discloses a kind of ultra high voltage ac line trip protection recognition sequence methods; the following steps are included: protection and switch motion information after correctly being tripped using high-voltage alternating route protection are as route protection trip event template; trip event template M1, M2 and M3 according to the action situation of reclosing after tripping, in the case of being respectively formed three kinds；To the protection and switch motion information progress fusion treatment in M1, M2 and M3, total trip event template MT is formed；To the protection and switch motion information progress digital coding in M1, M2, M3 and MT, digital collection QT1, QT2, QT3 and QT of information type in different templates are formed；Form template M0 to be matched；Information in template M0 to be matched is successively subjected to keyword match with the information in total template MT, forms the corresponding matching set QP of template M0 to be matched；Trip event type is identified according to matching set QP, determines actual trip event type；According to actual trip event type, determines whether leakage and signal.
Description
Technical field
The present invention relates to ultra high voltage ac line trip protection recognition sequence fields, and in particular to a kind of ultrahigh-voltage alternating-current line
Road trip protection recognition sequence method.
Background technique
Bulk transmission grid of the extra high voltage network as regional power grid has important work to the safe operation of entire power grid
With.Due to extra high voltage network power transmission distance, different terrain is often crossed over, is broken down vulnerable to wind-force, external force influence.It is super
After high-tension line breaks down, the accurate quick acting excision failure of protection is relied on, can protection correctly act and directly affect
The safe and reliable operation of power grid.In actually regulation operation, regulation personnel are dynamic according to the protection after failure in trip protection sequence
Make information and switch motion information judges the action situation of fault condition and protection.Supertension line common configuration is dual at present
Change protection, after the failure occurred, protection act information, switch motion information and other with information will take place frequently in a short time to
Alert window.The many warning information to take place frequently in face of the short time, regulation personnel rely on merely manual identified, are difficult to identify this rapidly
Whether a little warning information are completely correct, can not also determine whether leakage in time and signal, affect to failure and protection act situation
It is timely judgement and disposition.
For protection in solution regulation personnel manual identified trip protection sequence and switch motion information is time-consuming and laborious, it is fast to be difficult to
Speed determines whether the problem of leakage is signaled, and the present invention proposes a kind of ultra high voltage ac line trip protection recognition sequence method.
Summary of the invention
The present invention solve protection in current regulation personnel manual identified trip protection sequence of the existing technology and
Switch motion information is time-consuming and laborious, is difficult to determine whether the problem of leakage is signaled rapidly, provides a kind of ultra high voltage ac line guarantor
Shield tripping recognition sequence method, the sequence that manual identified can trip when applying be converted to automatic identification, improve trip protection
Recognition sequence efficiency and accuracy, whether there is or not leakages to signal for discovery in time, accelerates troubleshooting, and is easy to real in practical application
It is existing, it does not need to increase new equipment, it is only necessary to increase a tripping recognition sequence module, not influence the prison of regulation personnel
Disk.
The present invention is achieved through the following technical solutions:
A kind of high-voltage alternating route protection tripping recognition sequence method, comprising the following steps:
S1: protection and switch motion information after correctly being tripped using high-voltage alternating route protection are tripped thing as route protection
Part template generates failure without reclosing, reclosing success and unsuccessful reclosing according to the action situation of reclosing after tripping respectively
Trip event template in the case of three kinds, and it is denoted as M1, M2 and M3 respectively；
S2: to the protection and switch motion information progress fusion treatment in template M1, M2 and M3, total trip event mould is generated
Comprising protective switch action message all in M1, M2 and M3 in plate MT, MT, and every information and other information are different；
S3: to the protection and switch motion information progress digital coding in template M1, M2, M3 and total template MT, by information
Number is converted by field, generates digital collection QT1, QT2, QT3 and QT of information type in different templates；
S4: protection relevant with the route and switch motion in each 2 minutes before and after the actual track trip protection time are collected
Information generates template M0 to be matched；
S5: successively carrying out keyword match with the information in total template MT for the information in template M0 to be matched, if
Certain information in MT is mixed, then is recorded the digital coding of the information, the corresponding set of matches of template M0 to be matched is generated
Close QP；
S6: trip event type is identified according to matching set QP, determines actual trip event type；
S7: according to actual trip event type, by matching set QP set of digits corresponding with practical trip event type
Conjunction is compared, and completes recognition sequence, is determined whether leakage and is signaled.
Further, preferably, a kind of high-voltage alternating route protection tripping recognition sequence method, the step S1
In, the failure of generation is wrapped in M1 without reclosing, reclosing success and three kinds of unsuccessful reclosing trip event template M1, M2 and M3
No reclosing and switch combined floodgate information are included, includes reclosing or switch combined floodgate information in M2, includes that reclosing or switch close in M3
Lock information or switch separating brake information, and it is primary more than combined floodgate information to switch separating brake information.
Further, preferably, a kind of high-voltage alternating route protection tripping recognition sequence method, the step S2
In, to the protection and switch motion information progress fusion treatment in template M1, M2 and M3, generate total trip event template MT, shape
It is as follows at process: a warning information, respectively x1, x2, x3, x4, x5 ..., xa are shared in M1；B item alarm letter is shared in M2
Breath, respectively x1, x2, x3, x4, x5, x6 ..., xb；C warning information, respectively x1, x2, x3, x4, x5, x6 are shared in M3,
X7 ..., xc；The total template MT then formed, information include { x1, x2, x3, x4, x5, x6, x7 ..., xd }, and wherein d takes a, b, c
In maximum value.
Further, preferably, a kind of high-voltage alternating route protection tripping recognition sequence method, the step S3
In, in total template MT protection and switch motion information according to different type carry out digital coding, cataloged procedure is as follows: in MT
Have d warning information, respectively x1, x2, x3, x4, x5, x6, x7 ..., warning information number consecutively is then 1 by xd, 2,3,4,
5,6,7 ..., d is formed digital collection QT { 1,2,3,4,5,6,7 ..., d }, other template processing modes are similar.
Further, a kind of high-voltage alternating route protection trips recognition sequence method, in the step S5, by mould to be matched
Information in plate M0 successively carries out keyword match with the information in total template MT, and matching process is as follows: the information for including in M0
Have xe, xf, xg, xh, xi, wherein 0 < e < f < g < h < i < d, by with MT { x1, x2, x3, x4, x5, x6, x7 ..., xd }
Matching, the matching set QP of formation is { e, f, g, h, i }.
Further, a kind of high-voltage alternating route protection trips recognition sequence method, in the step S6, according to set of matches
It closes QP and identification process is as follows to be identified to trip event type: there is no reclosing and switch combined floodgate information in QP, judge event
Type is failure without reclosing；There are reclosing or switch combined floodgate information or switch separating brake information, and switchs separating brake information than closing a floodgate
How primary information is, judges event type for unsuccessful reclosing；There are reclosing or switch combined floodgate information or switch separating brake information, and opens
The number for closing separating brake information is less than or equal to the number of combined floodgate information, judges event type for reclosing success.
Compared with prior art, the present invention having the following advantages and benefits:
1, ultra high voltage ac line trip protection recognition sequence method proposed by the present invention can trip manual identified sequence
Column are converted to automatic identification, improve trip protection recognition sequence efficiency and accuracy, and whether there is or not leakages to signal for timely discovery, accelerates event
Barrier processing；
2, ultra high voltage ac line trip protection recognition sequence method proposed by the present invention is easily achieved in practical application,
It does not need to increase new equipment, it is only necessary to increase a tripping recognition sequence module, not influence the prison disk of regulation personnel.
3, the present invention keeps protection and switch motion information in regulation personnel's manual identified trip protection sequence time saving and energy saving, very
It is easy to determine whether the problem of leakage is signaled rapidly.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the key step flow chart that trip protection recognition sequence is realized in the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment
A kind of ultra high voltage ac line trip protection recognition sequence method, the described method comprises the following steps:
S1: protection and switch motion information after correctly being tripped using high-voltage alternating route protection are tripped thing as route protection
Part template is respectively formed failure without reclosing, reclosing success and unsuccessful reclosing according to the action situation of reclosing after tripping
Trip event template in the case of three kinds, is denoted as M1, M2 and M3；
S2: to the protection and switch motion information progress fusion treatment in template M1, M2 and M3, total trip event mould is formed
Comprising protective switch action message all in M1, M2 and M3 in plate MT, MT, and every information and other information are different；
S3: to the protection and switch motion information progress digital coding in template M1, M2, M3 and total template MT, by information
Number is converted by field, forms digital collection QT1, QT2, QT3 and QT of information type in different templates；
S4: protection relevant with the route and switch motion in each 2 minutes before and after the actual track trip protection time are collected
Information forms template M0 to be matched；
S5: successively carrying out keyword match with the information in total template MT for the information in template M0 to be matched, if
Certain information in MT is mixed, then is recorded the digital coding of the information, the corresponding set of matches of template M0 to be matched is formed
Close QP；
S6: trip event type is identified according to matching set QP, determines actual trip event type；
S7: according to actual trip event type, by matching set QP set of digits corresponding with practical trip event type
Conjunction is compared, and completes recognition sequence, is determined whether leakage and is signaled.
Embodiment two
The present embodiment refines 1 each step specific implementation method of above-described embodiment, in the step S1, is formed
Failure without reclosing, reclosing success and three kinds of unsuccessful reclosing trip event template M1, M2 and M3, in M1 without reclosing and
Combined floodgate information is switched, has reclosing or switch combined floodgate information in M2, there is reclosing or switch combined floodgate information or switch separating brake in M3
Information, and it is primary more than combined floodgate information to switch separating brake information.
In the step S2, to the protection and switch motion information progress fusion treatment in template M1, M2 and M3, generate total
Trip event template MT, forming process are as follows: a warning information, respectively x1, x2, x3, x4, x5 ..., xa are shared in M1；M2
In share b warning information, respectively x1, x2, x3, x4, x5, x6 ..., xb；Shared c warning information in M3, respectively x1,
X2, x3, x4, x5, x6, x7 ..., xc；The total template MT then formed, information include x1, x2, x3, x4, x5, x6, x7 ...,
Xd }, wherein d takes the maximum value in a, b, c.Share 5 warning information in the present embodiment in M1, i.e. a=5, respectively x1, x2,
X3, x4, x5；7 warning information, i.e. b=7, respectively x1, x2, x3, x4, x5, x6, x7 are shared in M2；8 announcements are shared in M3
Alert information, i.e. c=8, respectively x1, x2, x3, x4, x5, x6, x7, x8；The total template MT then formed, d=8, information include
{ x1, x2, x3, x4, x5, x6, x7, x8 }.
In the step S3, in total template MT protection and switch motion information according to different type carry out digital volume
Code, cataloged procedure are as follows: having d warning information, respectively x1, x2, x3, x4, x5, x6, x7 ... in MT, xd then believes alarm
Cease number consecutively be 1,2,3,4,5,6,7 ..., d is formed digital collection QT { 1,2,3,4,5,6,7 ..., d }, at other templates
Reason mode is similar.Share 8 warning information in the present embodiment in MT, i.e. d=8, respectively x1, x2, x3, x4, x5, x6, x7,
Warning information number consecutively is then 1,2,3,4,5,6,7,8 by x8, formation digital collection QT { 1,2,3,4,5,6,7,8 }, other
Template processing mode is similar.
In the step S5, the information in template M0 to be matched is successively subjected to keyword with the information in total template MT
Match, matching process is as follows: the information for including in M0 has xe, xf, xg, xh, xi, wherein 0 < e < f < g < h < i < d, by with
The matching of MT { x1, x2, x3, x4, x5, x6, x7 ..., xd }, the matching set QP of formation are { e, f, g, h, i }.In the present embodiment
The information for including in M0 has x1, x4, x5, x6, x8, i.e. e=1, f=4, g=5, h=6, i=8, by with MT x1, x2, x3,
X4, x5, x6, x7, x8 } matching, then the matching set QP formed be { Isosorbide-5-Nitrae, 5,6,8 }.
In the step S6, according to matching set QP trip event type is identified, if do not have in QP reclosing with
Combined floodgate information is switched, judges that event type is failure without reclosing；There are reclosing or switch combined floodgate information or switch separating brake information,
And switch separating brake information is primary more than combined floodgate information, judges that event type is otherwise reclosing success for unsuccessful reclosing.
Embodiment three
As shown in Figure 1, the present embodiment discloses a specific application example of the above method in conjunction with above-described embodiment.Specifically
By taking a ultrahigh-voltage alternating-current transmission line malfunction as an example, a trip protection recognition sequence example is provided.
By taking certain 220kV route as an example, after 220kV line fault, protection and switch motion information are formed by tripping sequence
Column template is respectively as shown in table 1- table 3.
1 220kV line inter-phase fault protection act of table and without reclosing sequence template M1
2 220kV line fault protection movement of table and reclosing success sequence template M2
3 220kV line fault protection movement of table and unsuccessful reclosing sequence template M3
To the protection and switch motion information progress fusion treatment in table 1- table 3, total trip event template MT is formed, and right
Every information carries out digital coding, as shown in table 4.
4 220kV line fault protection of table is always tripped sequence template MT
| Total trip event template MT sequence information | Digital coding |
| * first set .* protects the outlet * .* to act * | 1 |
| * the second set .* protection * outlet .* acts * | 2 |
| * switch separating brake .* | 3 |
| * first set protection .* reclosing .* acts .* | 4 |
| * the second set protection .* reclosing .* acts .* | 5 |
| * switch combined floodgate .* | 6 |
By taking the tripping sequence after certain practical 220kV line fault as an example, template M0 to be matched is formed, as shown in table 5.
Certain the 220kV line fault protection of table 5 tripping sequence M0 to be matched
Information in template M0 to be matched is successively subjected to keyword match with the information in template MT total in table 4, if
Certain information in MT is matched, then is recorded the digital coding of the information, the corresponding matching of template M0 to be matched is formed
Set QP, for { 1,5,2,3,6,4 }.There are reclosing, switch to close a floodgate and switch separating brake information in QP, and switchs separating brake information and close
Lock information content is equal, reclosing success after judging event type for failure.Meanwhile trip event is complete, does not find that leakage transmits
Breath.
The trip protection recognition sequence method proposed by the present invention known to examples detailed above can accurately and quickly identify guarantor
Protection and switch motion information in shield tripping sequence, determine whether rapidly leakage and signal, provide support for timely handling failure.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (6)
- A kind of recognition sequence method 1. high-voltage alternating route protection trips, which comprises the following steps:S1: protection and switch motion information after correctly being tripped using high-voltage alternating route protection are as route protection trip event mould Plate generates failure without reclosing, reclosing success and three kinds of unsuccessful reclosing according to the action situation of reclosing after tripping respectively In the case of trip event template, and be denoted as M1, M2 and M3 respectively；S2: to the protection and switch motion information progress fusion treatment in template M1, M2 and M3, total trip event template is generated Comprising protection and switch motion information all in M1, M2 and M3 in MT, MT, and in MT every protection and switch motion information and Other protections and switch motion information in MT in addition to this protection and switch motion are different；S3: to the protection and switch motion information progress digital coding in template M1, M2, M3 and total template MT, by information by word Section is converted into number, generates digital collection QT1, QT2, QT3 and QT of information type in different templates；S4: collecting before and after the actual track trip protection time protection relevant with route and switch motion information in each 2 minutes, Generate template M0 to be matched；S5: the information in template M0 to be matched is successively subjected to keyword match with the information in total template MT, if matched Certain information in MT, then record the digital coding of the information, generates the corresponding matching set QP of template M0 to be matched；S6: trip event type is identified according to matching set QP, determines actual trip event type；S7: according to actual trip event type, will matching set QP digital collection corresponding with practical trip event type into Row compares, and completes recognition sequence, determines whether leakage and signals.
- The recognition sequence method 2. a kind of high-voltage alternating route protection according to claim 1 trips, which is characterized in that described In step S1, the failure of generation without reclosing, reclosing success and unsuccessful reclosing three kinds of trip events template M1, M2 and M3, Include no reclosing and switch combined floodgate information in M1, include reclosing or switch combined floodgate information in M2, include in M3 reclosing or Combined floodgate information or switch separating brake information are switched, and it is primary more than switch combined floodgate information that separating brake information is switched in M3.
- The recognition sequence method 3. a kind of high-voltage alternating route protection according to claim 1 trips, which is characterized in that described In step S2, to the protection and switch motion information progress fusion treatment in template M1, M2 and M3, total trip event template is generated MT, forming process are as follows: a warning information, respectively x1, x2, x3, x4, x5 ..., xa are shared in M1；B item is shared in M2 to accuse Alert information, respectively x1, x2, x3, x4, x5, x6 ..., xb；C warning information, respectively x1, x2, x3, x4 are shared in M3, X5, x6, x7 ..., xc；The total template MT then formed, information include { x1, x2, x3, x4, x5, x6, x7 ..., xd }, wherein d Take the maximum value in a, b, c.
- The recognition sequence method 4. a kind of high-voltage alternating route protection according to claim 1 trips, which is characterized in that described In step S3, in total template MT protection and switch motion information according to different type carry out digital coding, cataloged procedure is such as Under: there are d warning information, respectively x1, x2, x3, x4, x5, x6, x7 ... in MT, warning information number consecutively is then by xd 1,2,3,4,5,6,7 ..., d is formed digital collection QT { 1,2,3,4,5,6,7 ..., d }, other template processing modes are similar.
- The recognition sequence method 5. a kind of high-voltage alternating route protection according to claim 1 trips, which is characterized in that described In step S5, the information in template M0 to be matched is successively subjected to keyword match, matching process with the information in total template MT As follows: the information for including in M0 hasxE,xF,xG,xH,xI, 0 < e < f < g < h < i < d, by with MT x1,x2,x3,x4,x5,x6,x7 ..., xd } matching, the matching set QP of formation is { e, f, g, h, i }.
- The recognition sequence method 6. a kind of high-voltage alternating route protection according to claim 1 trips, which is characterized in that described In step S6, identification process is as follows to be identified to trip event type according to matching set QP: not having reclosing in QP and opens Lock information is closed, judges that event type is failure without reclosing；When having reclosing or switch combined floodgate information, there is switch separating brake information And switch separating brake information is primary more than switch combined floodgate information, judges event type for unsuccessful reclosing；There are reclosing or switch point When lock information, there is switch combined floodgate information and switch number of the number less than or equal to switch combined floodgate information of separating brake information, judgement Event type is reclosing success.
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| CN110932391B (en) * | 2019-11-05 | 2023-10-27 | 深圳供电局有限公司 | Method and system for identifying tripping of feeder switch in station |
| CN113257630A (en) * | 2020-02-10 | 2021-08-13 | 西门子股份公司 | Circuit breaker accessory and circuit breaker assembly |
| CN112150020B (en) * | 2020-09-29 | 2022-09-27 | 国网四川省电力公司电力科学研究院 | Regional power grid equipment safety risk evaluation method based on alarm big data |
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