CN108448545A - A kind of formula feeder automation fault handling method of coincidence on the spot based on breaker - Google Patents
A kind of formula feeder automation fault handling method of coincidence on the spot based on breaker Download PDFInfo
- Publication number
- CN108448545A CN108448545A CN201810325901.6A CN201810325901A CN108448545A CN 108448545 A CN108448545 A CN 108448545A CN 201810325901 A CN201810325901 A CN 201810325901A CN 108448545 A CN108448545 A CN 108448545A
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- fault
- breaker
- segmentation
- branch switch
- switch
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides a kind of formula feeder automation fault handling method of coincidence on the spot based on breaker, including：1) substation exit breaker configuration delay fast tripping protection and single shot reclosing function, block switch and branch switch configure breaker along the line；2) the time-delay closing time T of setting segmentation and branch switch1With combined floodgate acknowledging time T2；3) fault trip；4) Fault Isolation and the power supply of upstream load restoration；5) fault down stream load restoration is powered：By remote control or manual mode of operation's combined floodgate interconnection switch, restore the power supply of fault down stream load.The present invention solves the problems, such as that the automatic circuits formula feeder automation such as conventional voltage time type and voltage and current time type needs to configure reclosing twice, multiple shot reclosing influence to load of the automatic circuit formula feeder automation in fault treating procedure is avoided, power supply reliability and the good service for greatly improving distribution line are horizontal.
Description
Technical field
The present invention relates to distribution network technology fields, more particularly to be a kind of formula of the coincidence on the spot feeder line based on breaker from
Dynamicization fault handling method.
Background technology
Feeder automation mainly overlaps including concentrated feeder automation, intelligent distribution type feeder automation and on the spot formula
Feeder automation, on the spot overlap formula feeder automation have independent of communication and power distribution automation main station carry out fault location,
The advantage be isolated and restored electricity is widely applied.
It includes voltage-time type and voltage and current time type, then, traditional electricity to overlap formula feeder automation on the spot mainly
Press time type feeder automation using the strategy of " decompression separating brake, incoming call time-delay closing ", in line failure substation exit
After circuit breaker trip, no matter whether faulty electric current by can all cause voltage-time type switch trip, causes to switch on circuit
Multiple action, influence switch service life；And conventional voltage time type feeder automation needs substation exit breaking
Device configuration reclosing, voltage and current time type feeder automation twice needs to configure reclosing three times, this leads to a large amount of substations
Outlet breaker does not have twice and the above reclosing function or does not allow configuration twice and the circuit of the above reclosing can not answer
With coincidence formula feeder automation on the spot.
Based on the above issues, by the way that the logical action characteristic of each distribution power automation terminal is rationally arranged, realize that type is presented on the spot
Organic cooperation of line automation and single shot reclosing is of great significance.
Invention content
The present invention provides a kind of formula feeder automation fault handling method of coincidence on the spot based on breaker, solves tradition
The automatic circuits formula feeder automation such as voltage-time type and voltage and current time type needs to configure reclosing problem twice, avoids
Multiple shot reclosing influence to load and Switch main body of the automatic circuit formula feeder automation in fault treating procedure, it is only necessary to become
The single shot reclosing of power station outlet breaker can realize distribution line failure positioning, be isolated and restore electricity, and be greatly improved
The power supply reliability of distribution line and good service are horizontal.
The present invention adopts the following technical scheme that：
A kind of formula feeder automation fault handling method of coincidence on the spot based on breaker, includes the following steps：
Step (1), substation exit breaker configure delay fast tripping protection and single shot reclosing function, along the line block switch
And branch switch configures breaker；
The time-delay closing time T of step (2), setting segmentation and branch switch1With combined floodgate acknowledging time T2；
Step (3), fault trip：Substation exit circuit breaker trip after generation phase fault, if segmentation and branch
Switch detects decompression and faulty electric current record then trips, if segmentation and branch switch detect decompression but non-faulty current is remembered
Record is not tripped then；
Step (4), Fault Isolation and the power supply of upstream load restoration：Substation exit breaker single shot reclosing, segmentation and
Branch switch is delayed T successively1It closes a floodgate, the after accelerated protection when the nearest segmentation in fault point upstream or branch switch He Zhong Library
Action is tripped again, and the nearest segmentation in fault point upstream or branch switch are less than combined floodgate acknowledging time due to closing a floodgate to opening time
T2And be latched, the nearest segmentation of trouble point downstream or branch switch are examined residual voltage and are latched；
Step (5), the power supply of fault down stream load restoration：It is extensive by remote control or manual mode of operation's combined floodgate interconnection switch
Multiple fault down stream load power supply.
Further, the time-delay closing time T of segmentation and branch switch in the step (2)1More than combined floodgate acknowledging time
T2。
Further, after breaking down in the step (3), segmentation and branch switch only detect decompression and have event
Barrier electric current record can just trip, the segmentation of fault down stream or other not faulty electric current records and branch line will not because of decompression and
Tripping.
Further, after step (4) the substation exit breaker single shot reclosing, when nearest point in fault point upstream
After accelerated protection action is tripped again when section or branch switch He Zhong Library, and the other segmentations in fault point upstream or branch switch are not
It can again trip because failure is coincided with.
The present invention technological merit be：After failure generation, segmentation and branch switch only have while meeting decompression the present invention
And faulty electric current record can just trip, i.e., the switch only on failure path can trip, and the switch on non-faulting path is only examined
It measures decompression and non-faulty current record will not trip；Simultaneously after substation exit breaker single shot reclosing, it is segmented and divides
When Zhi Kaiguan coincides with failure successively, fault point upstream switchs and trips and be latched by after accelerated protection recently, without drawing again
Substation exit switch trip is played, therefore substation exit breaker only needs to configure single shot reclosing and can realize distribution line event
Barrier positioning, isolation solve the automatic circuits formula feeder automation such as conventional voltage time type and voltage and current time type needs and match
Reclosing problem twice is set, power supply reliability and the good service for greatly improving distribution line are horizontal.
Description of the drawings
Fig. 1 is the flow diagram for overlapping formula feeder automation fault handling method on the spot the present invention is based on breaker；
Fig. 2 is fault treating procedure schematic diagram of the present invention in backbone；
Fig. 3 is fault treating procedure schematic diagram of the present invention in branch line.
Specific implementation mode
With reference to the drawings and specific embodiments in the present invention, the technical solution in the present invention is carried out clear, complete
Ground describes.
With reference to figure 1, the present invention provides a kind of formula feeder automation fault handling method of coincidence on the spot based on breaker, packet
Include following steps：
Step (1), substation exit breaker configure delay fast tripping protection and single shot reclosing function, along the line block switch
And branch switch configures breaker；
The time-delay closing time T of step (2), setting segmentation and branch switch1With combined floodgate acknowledging time T2；
Step (3), fault trip：Substation exit circuit breaker trip after generation phase fault, if segmentation and branch
Switch detects decompression and faulty electric current record then trips, if segmentation and branch switch detect decompression but non-faulty current is remembered
Record is not tripped then；
Step (4), Fault Isolation and the power supply of upstream load restoration：Substation exit breaker single shot reclosing, segmentation and
Branch switch is delayed T successively1It closes a floodgate, the after accelerated protection when the nearest segmentation in fault point upstream or branch switch He Zhong Library
Action is tripped again, and the nearest segmentation in fault point upstream or branch switch are less than combined floodgate acknowledging time due to closing a floodgate to opening time
T2And be latched, the nearest segmentation of trouble point downstream or branch switch are examined residual voltage and are latched；
Step (5), the power supply of fault down stream load restoration：It is extensive by remote control or manual mode of operation's combined floodgate interconnection switch
Multiple fault down stream load power supply.
Specifically, the time-delay closing time T of segmentation and branch switch1More than combined floodgate acknowledging time T2。
Specifically, after breaking down, segmentation and branch switch only detect decompression and the just meeting of faulty electric current record
Tripping, the segmentation of fault down stream or other not faulty electric current records and branch line will not trip because of decompression.
Specifically, after substation exit breaker single shot reclosing, when the nearest segmentation in fault point upstream or branch switch
After accelerated protection action is tripped again when He Zhong Library, and the other segmentations in fault point upstream or branch switch will not be because of coinciding with
Failure and he trips again..
It is automatic below according to the formula feeder line of coincidence on the spot based on breaker shown in Fig. 1 in order to which the above method is expanded on further
Change troubleshooting process, in conjunction with a specific example to further detailed description of the invention.
Backbone troubleshooting, as shown in Fig. 2, in figure QF be substation exit breaker, configuration delay fast tripping protection and
0.15 second QF delay tripping time is arranged in single shot reclosing function；QL1~QL3 is breaker block switch, and QL4~QL6 is disconnected
The time-delay closing time T of QL1~QL6 is arranged in road device branch switch1It is 5 seconds, combined floodgate acknowledging time T2It is 3 seconds；QL7 is breaker
Interconnection switch.
A) distribution line normal power supply.
B) permanent fault occurs for F points, and substation exit circuit breaker Q F detects that line fault, protection act tripping are divided
Duan Kaiguan QL1 and QL2 detect decompression and faulty electric current then trips, block switch QL3 and branch switch QL4~QL6 inspections
It measures decompression but non-faulty current does not trip then.
C) substation exit circuit breaker Q F reclosings；
D) after 5 seconds time-delay closing time, block switch QL1 closes a floodgate；After combined floodgate acknowledging time 3 seconds, do not close a floodgate to fault point,
QL1 no longer separating brakes；
E) after 5 seconds time-delay closing time, block switch QL2 closes a floodgate.
F) because of block switch QL2 He Zhong Libraries point then Accelerated trip, and since the combined floodgate for being not up to 3 seconds after combined floodgate confirms
Time is then latched after block switch QL2 trippings；
G) block switch QL3 detects short circuit incoming call and non-faulty current records, then trips and be latched；So far failure is completed
Isolation and the power supply of failure upstream region load.
H) by remote control or manual mode of operation's combined floodgate interconnection switch, restore the load power supply of fault down stream region.
Branch line troubleshooting, as shown in figure 3, substation exit circuit breaker Q F, breaker branch switch QL1 in figure~
The configuration of QL6 and breaker interconnection switch QL7 are identical as setting when backbone failure.
A) distribution line normal power supply.
B) permanent fault occurs for F points, and substation exit circuit breaker Q F detects that line fault, protection act tripping are divided
Duan Kaiguan QL1 and branch switch QL5 detect decompression and faulty electric current then trips, and block switch QL2, QL3 and branch open
Pass QL4, QL6 detect decompression but non-faulty current does not trip then.
C) substation exit circuit breaker Q F reclosings；
D) after 5 seconds time-delay closing time, block switch QL1 closes a floodgate；After combined floodgate acknowledging time 3 seconds, do not close a floodgate to fault point,
QL1 no longer separating brakes；
E) after 5 seconds time-delay closing time, branch switch QL5 closes a floodgate.
F) because of branch switch QL5 He Zhong Libraries point then Accelerated trip, and since the combined floodgate for being not up to 3 seconds after combined floodgate confirms
Time is then latched after branch switch QL5 trippings；So far Fault Isolation and the power supply of fault zone load are completed.
It should be noted that the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although ginseng
According to above-described embodiment, invention is explained in detail, those of ordinary skills in the art should understand that：It still can be with
It modifies or equivalent replacement, and any modification without departing from the scope of the invention or equally replaces to the specific implementation mode of the present invention
It changes, is intended to be within the scope of the claims of the invention.
Claims (4)
1. a kind of formula feeder automation fault handling method of coincidence on the spot based on breaker, it is characterised in that including following step
Suddenly：
1) substation exit breaker configures delay fast tripping protection and single shot reclosing function, along the line block switch and branch switch
Configure breaker；
2) the time-delay closing time T of block switch is set1With combined floodgate acknowledging time T2；
3) fault trip：Substation exit circuit breaker trip after generation phase fault, if segmentation and branch switch detect
Decompression and faulty electric current, which record, then to trip, and is not jumped if segmentation and branch switch detect that decompression but non-faulty current record
Lock；
4) Fault Isolation and the power supply of upstream load restoration：Substation exit breaker single shot reclosing, segmentation and branch switch according to
Secondary delay T1It closes a floodgate, when the nearest segmentation in fault point upstream or branch switch He Zhong Library, after accelerated protection is acted and jumped again
Lock, the nearest segmentation in fault point upstream or branch switch are less than combined floodgate acknowledging time T due to closing a floodgate to opening time2And be latched,
The nearest segmentation of trouble point downstream or branch switch are examined residual voltage and are latched；
5) fault down stream load restoration is powered：By remote control or manual mode of operation's combined floodgate interconnection switch, restore fault down stream
Load is powered.
2. the coincidence on the spot formula feeder automation fault handling method according to claim 1 based on breaker, feature
It is：The time-delay closing time T of segmentation and branch switch1More than combined floodgate acknowledging time T2。
3. the coincidence on the spot formula feeder automation fault handling method according to claim 1 based on breaker, feature
It is：After breaking down in the step (3), segmentation and branch switch only detect decompression and faulty electric current record
It can trip, the segmentation of fault down stream or other not faulty electric current records and branch line will not trip because of decompression.
4. the coincidence on the spot formula feeder automation fault handling method according to claim 1 based on breaker, feature
It is：After step (4) the substation exit breaker single shot reclosing, when the nearest segmentation in fault point upstream or branch switch
After accelerated protection action is tripped again when He Zhong Library, and the other segmentations in fault point upstream or branch switch will not be because of coinciding with
Failure and he trips again.
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| CN201810325901.6A CN108448545B (en) | 2018-04-12 | 2018-04-12 | A kind of formula feeder automation fault handling method of coincidence on the spot based on breaker |
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|---|---|---|---|
| CN201810325901.6A CN108448545B (en) | 2018-04-12 | 2018-04-12 | A kind of formula feeder automation fault handling method of coincidence on the spot based on breaker |
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| Publication Number | Publication Date |
|---|---|
| CN108448545A true CN108448545A (en) | 2018-08-24 |
| CN108448545B CN108448545B (en) | 2019-05-03 |
Family
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649578A (en) * | 2019-08-07 | 2020-01-03 | 珠海许继电气有限公司 | Fault isolation method and system for distributed feeder automation power distribution terminal |
| CN111781465A (en) * | 2020-06-28 | 2020-10-16 | 云南电网有限责任公司电力科学研究院 | Fault positioning system and method for ungrounded power grid |
| CN111884177A (en) * | 2020-07-03 | 2020-11-03 | 国网浙江省电力有限公司电力科学研究院 | In-situ feeder automation method based on voltage and current protection |
| CN111952940A (en) * | 2020-07-08 | 2020-11-17 | 国网江西省电力有限公司电力科学研究院 | In-situ feeder automation improvement strategy |
| CN112165090A (en) * | 2020-09-29 | 2021-01-01 | 国电南瑞南京控制系统有限公司 | Cooperative self-healing system and method |
| CN112421615A (en) * | 2020-11-05 | 2021-02-26 | 江苏其厚智能电气设备有限公司 | Power distribution station self-healing control method and system based on intelligent breaker action |
| CN112510658A (en) * | 2020-11-11 | 2021-03-16 | 广西电网有限责任公司电力科学研究院 | Multi-power-supply-point 10kV line feeder automation method with high power supply reliability |
| CN113690834A (en) * | 2021-07-14 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Overlapping type feeder automation line short circuit fault interval detection system on spot |
| CN113690835A (en) * | 2021-07-14 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Detection method for short-circuit fault section of in-situ overlapping type feeder automation line |
| CN113991622A (en) * | 2021-10-29 | 2022-01-28 | 武汉市速隔迅联电力科技有限公司 | Feeder automation voltage-loss brake-separating delay strategy and setting method |
| CN114094554A (en) * | 2021-12-02 | 2022-02-25 | 广东电网有限责任公司 | Master station in-place cooperative self-healing error isolation prevention method and related device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110649578A (en) * | 2019-08-07 | 2020-01-03 | 珠海许继电气有限公司 | Fault isolation method and system for distributed feeder automation power distribution terminal |
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| CN112165090A (en) * | 2020-09-29 | 2021-01-01 | 国电南瑞南京控制系统有限公司 | Cooperative self-healing system and method |
| CN112421615A (en) * | 2020-11-05 | 2021-02-26 | 江苏其厚智能电气设备有限公司 | Power distribution station self-healing control method and system based on intelligent breaker action |
| CN112510658A (en) * | 2020-11-11 | 2021-03-16 | 广西电网有限责任公司电力科学研究院 | Multi-power-supply-point 10kV line feeder automation method with high power supply reliability |
| CN112510658B (en) * | 2020-11-11 | 2022-11-22 | 广西电网有限责任公司电力科学研究院 | Multi-power-point 10kV line feeder automation method with high power supply reliability |
| CN113690835A (en) * | 2021-07-14 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Detection method for short-circuit fault section of in-situ overlapping type feeder automation line |
| CN113690834A (en) * | 2021-07-14 | 2021-11-23 | 广西电网有限责任公司电力科学研究院 | Overlapping type feeder automation line short circuit fault interval detection system on spot |
| CN113991622A (en) * | 2021-10-29 | 2022-01-28 | 武汉市速隔迅联电力科技有限公司 | Feeder automation voltage-loss brake-separating delay strategy and setting method |
| CN113991622B (en) * | 2021-10-29 | 2023-07-18 | 武汉市速隔迅联电力科技有限公司 | Feeder line automatic voltage-losing and switching-off delay strategy and setting method |
| CN114094554A (en) * | 2021-12-02 | 2022-02-25 | 广东电网有限责任公司 | Master station in-place cooperative self-healing error isolation prevention method and related device |
| CN114094554B (en) * | 2021-12-02 | 2023-06-30 | 广东电网有限责任公司 | Method and related device for preventing error isolation by master station in-situ cooperative self-healing |
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