CN105914734A - Differentiated power distribution network fault processing complementary method based on special operation mode - Google Patents
Differentiated power distribution network fault processing complementary method based on special operation mode Download PDFInfo
- Publication number
- CN105914734A CN105914734A CN201610260044.7A CN201610260044A CN105914734A CN 105914734 A CN105914734 A CN 105914734A CN 201610260044 A CN201610260044 A CN 201610260044A CN 105914734 A CN105914734 A CN 105914734A
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- China
- Prior art keywords
- power supply
- distribution network
- fault processing
- user
- differentiation
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
Abstract
The invention relates to a differentiated power distribution network fault processing complementary method based on a special operation mode. Two operation modes and one power guarantee mode are analyzed so that differentiated fault processing solve strategies are obtained, wherein the two operation modes refer to a single power supply ring network mode and a double cable power supply mode, and the power guarantee mode is mainly for guaranteeing the double power supply performance of users after fault recovery for the double power supply users. Adaptability of the power distribution network fault processing function of the present stage is considered, the influence of flow of the special operation mode on a common fault processing logic algorithm and the defects of the common fault processing logic are also considered, and a power distribution network fault processing complementary technology based on the special operation mode is obtained through comprehensive consideration so that wide adaptability and practicality of power distribution network fault processing can be guaranteed, the reliability of power distribution network fault processing can be enhanced, power supply time can be shortened and user satisfaction can be enhanced.
Description
Technical field
The present invention relates to a kind of distribution network failure treatment technology, relate to the troubleshooting technology in electrical power distribution automatization system, specifically
A kind of differentiation distribution network failure based on the special method of operation processes compensation process.
Background technology
Distribution network failure of the prior art isolation and service restoration method, be both for general distribution network shelf structure and be analyzed
's.But, owing to power distribution network powering mode is various, under the method for operation that some are special, existing distribution network failure processes
Actual demand cannot be met, it is therefore desirable to provide the distribution network failure treatment technology of differentiation for the special method of operation, with full
The demand of the power distribution network powering mode that foot is continually changing.
Summary of the invention
For solving the deficiencies in the prior art, it is an object of the invention to by the distribution network failure under several special methods of operation is entered
Row is analyzed, thus the method having been resolved the troubleshooting under this special method of operation, and supplement skill by differentiation troubleshooting
Art, is incorporated distribution network failure and is processed in functional module, met the demand of present stage distribution network failure disposal ability.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that:
The positive effect of the present invention and advantage be:
A kind of differentiation distribution network failure based on the special method of operation processes compensation process, for two kinds of methods of operation and one
Guarantor's power mode is analyzed, and obtains the resolution policy of differentiation troubleshooting, and wherein, two kinds of methods of operation are respectively as follows: single supply
Looped network and double cable are powered two ways, a kind of protect power mode be primarily directed to dual power supply user ensure non-faulting recover after user
Dual power supply.
And, differentiation troubleshooting strategy under single supply loop-net operation mode is it is important that during restoring electricity, dynamically
When calculating downstream recovery, there is new power supply along with the closing operation of trip switch in detection.
And, the dual power supply of user after ensureing non-faulting recovery of powering for double cables is that the wrong report phenomenon avoiding double cable fault causes
Distribution network failure location failure, by expand isolation range, will be unable to confirm false positive signal shielding, by fault zone wrap
It is contained in isolation range, thus ensures the accuracy of fault location, it is to avoid owing to positioning the secondary trip unsuccessfully caused.
And, after ensureing non-faulting recovery for dual power supply user, the differentiation troubleshooting of the dual power supply of user focuses on protecting
The dual power supply of card dual power supply user, i.e. before fault recovery, dynamic calculation dual power supply user, and by the confession of dual power supply user
Electricity power supply and newly turn the power supply of confession and contrast, thus revise the priority level of recovery scheme.
The positive effect of the present invention and advantage be:
The present invention not only allows for present stage distribution network failure and processes the adaptability of function, it is also contemplated that for the special method of operation
Trend processes the impact that logical algorithm produces to ordinary failures, and ordinary failures processes the defect of logic, considers and obtains base
Distribution network failure under the special method of operation processes the technology of supplementing, it is ensured that the extensive adaptability of distribution network failure process and reality
By property, thus improve distribution network failure and process reliability, shorten power-on time, it is provided that user satisfaction.
Accompanying drawing explanation
Fig. 1 is that under single supply loop-net operation mode, FA tests looped network figure；
Fig. 2 is that the FA under double cable method of operation tests looped network figure；
Fig. 3 is that after dual power supply user ensures non-faulting recovery, the FA of the dual power supply of user tests looped network figure；
Fig. 4 is troubleshooting process figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention made concrete introduction.
A kind of differentiation distribution network failure based on the special method of operation processes compensation process, for two kinds of methods of operation and one
Guarantor's power mode is analyzed, and obtains the resolution policy of differentiation troubleshooting, and wherein, two kinds of methods of operation are respectively as follows: single supply
Looped network and double cable are powered two ways, a kind of protect power mode be primarily directed to dual power supply user ensure non-faulting recover after user
Dual power supply.
Embodiment 1
As shown in Figure 1, #1 line and #2 line form loop hand in hand through #1 ring main unit and #4 ring main unit, and interconnection switch is #4
Ring main unit 42 interconnection switch, #1 ring main unit, #2 ring main unit and #3 ring main unit are from becoming minor loop, and interconnection switch is #1 ring main unit
14 minor loop interconnection switches.
Such as figure, between #1 ring main unit and #2 ring main unit, cable breaks down, the isolation scheme that normal troubleshooting function is given
Switching for disconnecting #1 ring main unit 12, recovery scheme is the 1# wiretap that closes, without #2 ring main unit and the recovery scheme of #3 ring main unit.
And it practice, restore electricity carrying out non-faulting region, close 1# wiretap, then the #1 ring main unit 14 minor loop connection that closes
Network switchs.
Differentiation troubleshooting under single supply loop-net operation mode is during restoring electricity, when dynamic calculation downstream is recovered,
There is new power supply along with the closing operation of trip switch in detection.
For this wiring, during restoring electricity, when dynamic calculation downstream is recovered, can or can not be along with the conjunction of trip switch
Lock operates, and new power supply occurs, if the power supply point of restoration path comes from the power supply of trip switch, and trip switch
In the case of Unisolated switch, this restoration path is effective, by this restoration path write into Databasce, and passes through boundary
The restoration path in face shows.
Embodiment 2
As accompanying drawing 2, #1 line and #2 line form loop, interconnection switch hand in hand through #1 ring main unit, #2 ring main unit and #4 ring main unit
For #4 ring main unit 42 interconnection switch, being paired cable between #1 ring main unit and #2 ring main unit, paired cable is all stuck on CT, other
Circuit is single cable.
Such as accompanying drawing 2, having a cable to break down between #1 ring main unit and #2 ring main unit in paired cable, fault current refluxes
#2 ring main unit 21 can be caused to switch also have on over-current signal sending, system is judged as #2 ring main unit bus-bar fault, the isolation side provided
Case switchs for disconnecting #2 ring main unit 21 switch and #2 ring main unit 22, and recovery scheme is 1# wiretap and the #2 ring main unit 42 of closing
Network switchs.Because of scheme misjudgment, trouble point is also not isolated from, when close 1# wiretap time, 1# wiretap can be caused again to trip
Form second accident.
And it practice, system cable has single cable and double cable mark, can be the most appropriate as criterion amendment failure judgment method,
Suitably expand isolation range also to should be all right.
Differentiation troubleshooting under double cable powered operations is the distribution network failure location avoiding the wrong report phenomenon of double cable fault to cause
Failure, fundamentally walk around the distribution network failure that may bring of wrong report and position unsuccessfully.By expanding isolation range, will be unable to really
The false positive signal shielding recognized, is included in fault zone in isolation range, thus ensures the accuracy of fault location, it is to avoid due to
Position the secondary trip unsuccessfully caused.
For double cable faults, the processing method proposed here is to expand Fault Isolation scope.By analysis, can sum up: double
Cable line fault is likely to occur the service entrance switch that the over-current signal of wrong report is the most all switch cubicle.It is contemplated that be looped network judging
Bus-bar fault type in cabinet, extends forward one section by Fault Isolation scope, is isolated to the outlet switch of a ring main unit.
Dual power supply user, when troubleshooting, ensures that it remains as dual power supply as far as possible.Processing method is, it is judged that turn for negative
In lotus, if still have the load (dual power supply) of non-dead electricity, for these load decision node power supplys, and do mate turning power supply source,
Preferentially select non-same power supply.
Embodiment 3
Such as accompanying drawing 3, #1 line, #2 line and #3 line are three contact situations, and #1 ring main unit is powered by #1 line, #2 ring main unit and #3
Ring main unit is powered by #3 line, and #4 ring main unit is powered by #2 line, and the contact point of #1 line and #3 line is #1 ring main unit 12 interconnection switch,
The contact point of #2 line and #3 line is #4 ring main unit 42 interconnection switch, and responsible consumer is dual power supply user, and two ends power supply is respectively #1
Line and #3 line, two end switch are respectively #1 ring main unit 13 switch and #2 ring main unit 23 switchs.
Such as accompanying drawing 3, between #2 ring main unit and #3 ring main unit, cable breaks down, and the isolation scheme that system is given is for disconnecting #2
Ring main unit 24 switch and #3 ring main unit 31 switch, and upstream recovery scheme is the 3# wiretap that closes, and downstream recovery scheme has 2 kinds of feelings
Condition, one is #1 ring main unit 12 interconnection switch that closes, and two is #4 ring main unit 42 interconnection switch that closes.Two kinds of recovery schemes are the most former
It is then excellent for load factor the lowest.
And it practice, the load factor working as the 2 kinds of recovery schemes in downstream all (is defaulted as 90%) in threshold values, preferably close #4 looped network
Cabinet 42 interconnection switch, it is ensured that responsible consumer is still by multiple feed, if selecting to close #1 ring main unit 12 interconnection switch, when
1# wiretap trips, and responsible consumer will dead electricity.
After ensureing non-faulting recovery for dual power supply user, the differentiation troubleshooting of the dual power supply of user focuses on guarantee pair
The dual power supply of power user, i.e. before fault recovery, dynamic calculation dual power supply user, and by the power supply electricity of dual power supply user
Source and newly turn the power supply of confession and contrast, thus revise the priority level of recovery scheme.
The handling process that the differentiation distribution network failure based on the special method of operation of the present invention processes the technology of supplementing is as follows:
Fault location；
Troubleshooting strategy generating；
Differentiation troubleshooting correction；
Scheme optimization generates；
Scheme performs；
Troubleshooting software module operational flow diagram sees accompanying drawing 4.
The general principle of the present invention, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry,
Above-described embodiment limits the present invention the most in any form, the technical scheme that the mode of all employing equivalents or equivalent transformation is obtained,
All fall within protection scope of the present invention.
Claims (4)
1. a differentiation distribution network failure based on the special method of operation processes compensation process, it is characterised in that: for two kinds
The method of operation and a kind of power mode of protecting are analyzed, and obtain the resolution policy of differentiation troubleshooting, wherein, two kinds of operation sides
Two ways that formula is respectively as follows: single supply looped network and double cable is powered, a kind of power mode of protecting is primarily directed to dual power supply user and ensures non-
The dual power supply of user after fault recovery.
Differentiation distribution network failure based on the special method of operation the most according to claim 1 processes compensation process, its feature
Be: differentiation troubleshooting strategy under single supply loop-net operation mode it is important that during restoring electricity, dynamic calculation
When downstream is recovered, there is new power supply along with the closing operation of trip switch in detection.
Differentiation distribution network failure based on the special method of operation the most according to claim 1 processes compensation process, its feature
Be: power for double cables ensure non-faulting recover after the dual power supply of user be to avoid what the wrong report phenomenon of double cable fault caused to join
The failure of electric network fault location, by expanding isolation range, will be unable to the false positive signal shielding confirmed, is included in fault zone
In isolation range, thus ensure the accuracy of fault location, it is to avoid owing to positioning the secondary trip unsuccessfully caused.
Differentiation distribution network failure based on the special method of operation the most according to claim 1 processes the technology of supplementing, its feature
It is: after ensureing non-faulting recovery for dual power supply user, the differentiation troubleshooting of the dual power supply of user focuses on guarantee pair
The dual power supply of power user, i.e. before fault recovery, dynamic calculation dual power supply user, and by the power supply electricity of dual power supply user
Source and newly turn the power supply of confession and contrast, thus revise the priority level of recovery scheme.
Priority Applications (1)
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| CN201610260044.7A CN105914734A (en) | 2016-04-22 | 2016-04-22 | Differentiated power distribution network fault processing complementary method based on special operation mode |
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| CN201610260044.7A CN105914734A (en) | 2016-04-22 | 2016-04-22 | Differentiated power distribution network fault processing complementary method based on special operation mode |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417526A (en) * | 1990-05-08 | 1992-01-22 | Kansai Electric Power Co Inc:The | Supporting method for power system operation |
| CN102290798A (en) * | 2011-08-11 | 2011-12-21 | 中国电力科学研究院 | Quick power supply restoring rule based on distribution network wire connecting way |
| CN103560512A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | High-reliability closed loop wiring method of medium voltage distribution network |
| CN103872687A (en) * | 2014-03-31 | 2014-06-18 | 国网上海市电力公司 | Power distribution network rack wiring structure |
-
2016
- 2016-04-22 CN CN201610260044.7A patent/CN105914734A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417526A (en) * | 1990-05-08 | 1992-01-22 | Kansai Electric Power Co Inc:The | Supporting method for power system operation |
| CN102290798A (en) * | 2011-08-11 | 2011-12-21 | 中国电力科学研究院 | Quick power supply restoring rule based on distribution network wire connecting way |
| CN103560512A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | High-reliability closed loop wiring method of medium voltage distribution network |
| CN103872687A (en) * | 2014-03-31 | 2014-06-18 | 国网上海市电力公司 | Power distribution network rack wiring structure |
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Application publication date: 20160831 |
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