CN106026051B - A kind of definite value adaptive voltage current time type feeder automation method on the spot - Google Patents
A kind of definite value adaptive voltage current time type feeder automation method on the spot Download PDFInfo
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- CN106026051B CN106026051B CN201610595486.7A CN201610595486A CN106026051B CN 106026051 B CN106026051 B CN 106026051B CN 201610595486 A CN201610595486 A CN 201610595486A CN 106026051 B CN106026051 B CN 106026051B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 9
- 230000003111 delayed effect Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 abstract description 12
- 238000009826 distribution Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of definite value adaptive voltage current time type, feeder automation method, substation exit breaker configure delay fast tripping protection and single shot reclosing function on the spot, and breaker is used along wiretap.This method by " outlet single shot reclosing, overcurrent delay tripping, combined floodgate instantaneous over-current, in short-term come electric tripping " mode, in conjunction with phase fault/single-phase earthing transient characteristic fault detection technique, coordinate substation exit breaker single shot reclosing, realizes the fault section and isolation of the multi-joint network power distribution network of multiple-limb.
Description
Technical field
The present invention relates to a kind of definite value adaptive voltage current time type feeder automation methods on the spot, belong to electric system
And its automatic field.
Background technology
Although the automatic circuit of existing mainstream and the feed line automatization system of voltage-time type sectionaliser cooperation have at failure
Function is managed, but fault handling time is longer, the offside switch of fault section needs to rely on " residual voltage locking ", but " residual voltage locking "
It is not absolutely reliable, it can just restore to supply using a wheel coincidence after offside regular link all fronts decompression can be caused if failure
Electricity；And this pattern generally requires to reconfigure time definite value, otherwise troubleshooting after the power distribution network method of operation changes
Logic will fail, or even malfunction occurs；The pattern is generally only applicable to radial, " handing in hand " power distribution network and simple more segmentations are matched
Power grid.
Invention content
In order to solve the above technical problem, the present invention provides one kind
In order to achieve the above object, the technical solution adopted in the present invention is：
Feeder automation method, the configuration of substation exit breaker are prolonged on the spot for a kind of definite value adaptive voltage current time type
When fast tripping protection and single shot reclosing function, use breaker along wiretap, and configure as follows：
It is block switch overcurrent protection tripping delay time to define T, and X is the block switch time-delay closing time, and Y is that segmentation is opened
It closes after lock and detects that the maximum time limit of fault current, W are that block switch detects the time interval sent a telegram here in short-term, come in short-term
Electricity is the incoming call for the time being less than Y；
Block switch detects fault current and both sides are without pressure, starting tripping delay T timing, T>Outlet breaker reclosing
Delay+outlet breaker feed motion time trips immediately if detecting fault current again in T time, otherwise motionless
Make；
Block switch detects that side has pressure, block switch to be in point position and have memory fault current, be then delayed after the X times
It closes a floodgate；
After block switch closes a floodgate, detects fault current again within the Y times, then trip and be latched at once；
Block switch detects that incoming call in short-term and block switch are in and starts W timing when closing position, if detected after the W times again
It sends a telegram here and is switched in position is closed in short-term, then trip and be latched；
Interconnection switch is in gate-dividing state and detects that there are pressure in both sides, forbids to close a floodgate, and interconnection switch is not involved in action logic,
Non-faulting area restores electricity by main website or manual operation.
Y<X。
W=n × X, n are integer.
The advantageous effect that the present invention is reached：1, the present invention has processing phase fault and different earthed systems are single-phase
Earth fault ability；2, all block switches of circuit, interconnection switch, demarcation switch use identical equipment, save construction cost；3、
When the circuit method of operation changes, all switchgears reset short circuit, ground protection definite value without scene on circuit, convenient
On-site maintenance；4, the methods of comparison with voltage time type, voltage and current time type, combined floodgate quick-break, this method outlet breaker only needs
Single shot reclosing is configured, can faster find out line fault, user's frequency of power cut is less, and power off time is shorter, scope of power outage
Smaller；5, this method by " outlet single shot reclosing, overcurrent delay tripping, combined floodgate instantaneous over-current, in short-term come electric tripping " mode,
In conjunction with phase fault/single-phase earthing transient characteristic fault detection technique, coordinate substation exit breaker single shot reclosing, realizes
The fault section and isolation of the multi-joint network power distribution network of multiple-limb；6, switch and control device (DTU, FTU or boundary switch controller
Deng) equipment combined use, it realizes the automatic management and control to distribution line, can correctly and efficiently handle the event in power distribution network
Barrier reduces fault incidence, shortens the fault outage time.
Description of the drawings
Fig. 1 breaks down schematic diagram between FS2 and FS3.
Fig. 2 is to trip the CB delay Tt times.
Fig. 3 is the delay T timing of FS1, FS2 starting tripping.
Fig. 4 is CB single shot reclosings after the Tc1 times, and FS1, FS2 detect fault current in T time and accelerate to jump
Lock.
Fig. 5 is delayed after the X times for FS1 and closes a floodgate.
Fig. 6 is delayed after the X times for FS2 and closes a floodgate, and detects that fault current, Accelerated trip are simultaneously latched again in the Y times.
Fig. 7 is detected for FS3 after the W times and is sent a telegram here in short-term again, is tripped and is latched.
After being YS1 short trouble occurs for Fig. 8.
Singlephase earth fault occurs between FS5 and FS6 for Fig. 9.
Figure 10 is trip protection after FS1, FS4, FS5 delay T time.
Figure 11 is delayed for FS1FS4 after the X times and closes a floodgate successively.
Figure 12 is delayed after the X times for FS5 and closes a floodgate, and detects negative capacitance transient characterisitics again in the Y times, trips and be latched.
Figure 13 is detected for FS6 and is sent a telegram here in short-term, is tripped and is latched.
Figure 14 trips for YS1 quick-breaks, and reclosing is primary (hiding transient fault), rear Accelerated trip.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
A kind of definite value adaptive voltage current time type feeder automation method on the spot, the CB configurations of substation exit breaker
Be delayed fast tripping protection and single shot reclosing function, uses breaker along wiretap, and configure as follows：
Definition Tt is outlet breaker CB trip protection delay times, and T is block switch overcurrent protection tripping delay time,
X is the block switch time-delay closing time, and Y is the maximum time limit for detecting fault current after block switch closes a floodgate again, and W is that segmentation is opened
Pass detects the time interval sent a telegram here in short-term, and incoming call is the incoming call for the time being less than Y in short-term；
Block switch detects fault current and both sides are without pressure, starting tripping delay T timing, T>Outlet breaker CB is overlapped
The lock delay Tc1+ outlet breaker CB feed motion times trip immediately if detecting fault current again in T time,
Otherwise it is failure to actuate；
Block switch detects that side has pressure, block switch to be in point position and have memory fault current, be then delayed after the X times
It closes a floodgate；
After block switch closes a floodgate, detects fault current again within the Y times, then trip and be latched at once；Y<X；
Block switch detects that incoming call in short-term and block switch are in and starts W timing when closing position, if detected after the W times again
It sends a telegram here and is switched in position is closed in short-term, then trip and be latched；W=n × X, n are integer；
Interconnection switch is in gate-dividing state and detects that there are pressure in both sides, forbids to close a floodgate, and interconnection switch is not involved in action logic,
Non-faulting area restores electricity by main website or manual operation.
In order to which the above method is expanded on further, illustrated with following embodiment.
The processing of backbone short trouble, as shown in Figure 1, the schematic diagram that breaks down between FS2 and FS3, FS1~FS6 in figure
For breaker block switch, LSW1, LSW2 are breaker interconnection switch, and YS1~YS2 switchs for user demarcation.
A1 starts single shot reclosing delay Tc1 timing as shown in Fig. 2, the CB delay Tt times trip (such as 0.3s)；
A2, FS1, FS2 detect fault current and both sides are without pressure, starting tripping delay T timing (T>Tc1+CB feed motions
Time)；
A3, as shown in figure 3, CB single shot reclosings after the Tc1 times；
A4 trips immediately as shown in figure 4, FS1, FS2 detect that fault current and unilateral side have pressure again in T time；FS3
It detects incoming call and memoryless fault current in short-term and switch is in startup W timing when closing position；
A5, as shown in figure 5, FS1 detects that there are pressure, switch in side in point position and have memory fault current (when setting
Limit), be delayed the X times after close a floodgate；
A6, as shown in fig. 6, FS2 detects that there are pressure, switch in side in point position and have memory fault current (when setting
Limit), it closes a floodgate after the X times that are delayed, detects fault current again in the Y times, trip and be latched at once；
A7 sends a telegram here in short-term as shown in fig. 7, FS3 is detected after the W times again, and memoryless fault current (setting time limit),
Switch trips and is latched in position is closed.
User branch short trouble processing, as shown in figure 8, short trouble occurs after YS1.
Scheme 1：The quick-break of YS1 user demarcation switchgear distributions, single shot reclosing；YS1 quick-breaks are tripped, and reclosing once (is hidden
Transient fault), rear Accelerated trip.Scheme 2：It is identical as backbone fault handling logic.
Backbone earth fault (small current neutral grounding) processing.
B1, as shown in figure 9, singlephase earth fault occurs between FS5 and FS6, FS1, FS4, FS5 are according to residual voltage derivative
And zero-sequence current transient characterisitics (negative capacitance), earth fault is selected downstream；FS2, FS3, FS6 are in positive capacitive；
B2, as shown in Figure 10, trip protection after FS1, FS4, FS5 delay T time；
B3, as shown in figure 11, FS1 detect that there are pressure, switch in side in point position and have memory negative capacitance transient characterisitics (to set
Specified time), be delayed the X times after close a floodgate；FS4 detects that there are pressure, switch in side in point position and have memory negative capacitance transient characterisitics
(setting the time limit) closes a floodgate after the X times that are delayed；
B4, as shown in figure 12, FS5 detect that there are pressure, switch in side in point position and have memory negative capacitance transient characterisitics (to set
Specified time), it closes a floodgate after the X times that are delayed, detects negative capacitance transient characterisitics (Y again in the Y times<X), trip and be latched at once；
B5, as shown in figure 13, FS6 detects incoming call in short-term while switch trips and is latched in position is closed.
The earth fault processing of user branch, as described in Figure 14.Scheme：The quick-break of YS1 user demarcation switchgear distributions, primary coincidence
Lock；YS1 quick-breaks are tripped, and reclosing is primary (hiding transient fault), rear Accelerated trip.
The above method has processing phase fault and different single-phase grounded malfunction in grounded system abilities；All points of circuit
Duan Kaiguan, interconnection switch, demarcation switch use identical equipment, save construction cost；When the circuit method of operation changes, institute on circuit
There is switchgear to reset short circuit, ground protection definite value without scene, facilitates on-site maintenance；Comparison with voltage time type, electricity
The methods of current voltage time type, combined floodgate quick-break, outlet breaker need to only configure single shot reclosing, can faster find out circuit event
Barrier, user's frequency of power cut is less, and power off time is shorter, scope of power outage smaller.
The above method by " outlet single shot reclosing, overcurrent delay tripping, combined floodgate instantaneous over-current, in short-term come electric tripping " just
Formula coordinates substation exit breaker single shot reclosing in conjunction with phase fault/single-phase earthing transient characteristic fault detection technique,
Realize the fault section and isolation of the multi-joint network power distribution network of multiple-limb；Switch and control device (DTU, FTU or boundary switch controller
Deng) equipment combined use, it realizes the automatic management and control to distribution line, can correctly and efficiently handle the event in power distribution network
Barrier reduces fault incidence, shortens the fault outage time.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of definite value adaptive voltage current time type feeder automation method on the spot, it is characterised in that：Substation exit is disconnected
Road device configuration delay fast tripping protection and single shot reclosing function use breaker along wiretap, and configure as follows：
It is block switch overcurrent protection tripping delay time to define T, and X is the block switch time-delay closing time, and Y is that block switch closes
Detect that the maximum time limit of fault current, W are that block switch detects the time interval sent a telegram here in short-term after lock again, incoming call is in short-term
Time is less than the incoming call of Y；
Block switch detects fault current and both sides are without pressure, starting tripping delay T timing, T>Outlet breaker reclosing is delayed
+ outlet breaker feed motion the time trips immediately if detecting fault current again in T time, is otherwise failure to actuate；
Block switch detects that side has pressure, block switch to be in point position and have memory fault current, then closed after the X times that are delayed
Lock；
After block switch closes a floodgate, detects fault current again within the Y times, then trip and be latched at once；
Block switch detects that incoming call in short-term and block switch are in and starts W timing when closing position, if detected in short-term after the W times again
Incoming call and switch, which are in, closes position, then trips and be latched；
Interconnection switch is in gate-dividing state and detects that there are pressure in both sides, forbids to close a floodgate, and interconnection switch is not involved in action logic, non-event
Barrier area restores electricity by main website or manual operation.
2. a kind of definite value adaptive voltage current time type according to claim 1 feeder automation method on the spot, special
Sign is：Y<X.
3. a kind of definite value adaptive voltage current time type according to claim 1 feeder automation method on the spot, special
Sign is：W=n × X, n are integer.
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| CN201610595486.7A CN106026051B (en) | 2016-07-26 | 2016-07-26 | A kind of definite value adaptive voltage current time type feeder automation method on the spot |
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| CN201610595486.7A CN106026051B (en) | 2016-07-26 | 2016-07-26 | A kind of definite value adaptive voltage current time type feeder automation method on the spot |
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| CN106026051B true CN106026051B (en) | 2018-10-02 |
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| CN106532663B (en) * | 2016-12-09 | 2019-04-12 | 国网北京市电力公司 | Distribution line Self-feedback control method and device |
| CN108808632A (en) * | 2017-05-04 | 2018-11-13 | 河南华盛隆源电气有限公司 | It is a kind of to overlap and the adaptive method and apparatus of fragmentation feature |
| CN108808633A (en) * | 2017-05-04 | 2018-11-13 | 河南华盛隆源电气有限公司 | A kind of failure separation method for preventing non-faulting region from repeatedly having a power failure and device |
| CN109557358A (en) * | 2017-09-27 | 2019-04-02 | 河南华盛隆源电气有限公司 | A kind of route has pressure decompression detection determination method |
| CN107492889B (en) * | 2017-10-10 | 2020-11-17 | 武汉市速隔迅联电力科技有限公司 | Dynamic setting method based on X time of feeder automation terminal |
| CN108448545B (en) * | 2018-04-12 | 2019-05-03 | 国网湖北省电力有限公司电力科学研究院 | A kind of formula feeder automation fault handling method of coincidence on the spot based on breaker |
| CN108666991A (en) * | 2018-06-19 | 2018-10-16 | 西安兴汇电力科技有限公司 | A kind of no-delay Graded coordination method of feeder automation intelligent on the spot and application |
| CN108767824A (en) * | 2018-06-19 | 2018-11-06 | 西安兴汇电力科技有限公司 | A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application |
| CN108767825A (en) * | 2018-06-19 | 2018-11-06 | 西安兴汇电力科技有限公司 | A kind of feeder automation intelligent on the spot is delayed differential fitting method and application entirely |
| CN109038475A (en) * | 2018-08-31 | 2018-12-18 | 广东电网有限责任公司 | A kind of distribution network overhead line self-recovery method based on voltage time logic |
| CN109412124B (en) * | 2018-12-04 | 2020-01-14 | 山东理工大学 | Distribution line interphase short circuit protection configuration and setting method |
| CN110635460B (en) * | 2019-10-17 | 2022-04-08 | 许继集团有限公司 | On-site feeder automation device, section switch and interconnection switch |
| CN113032978A (en) * | 2021-03-08 | 2021-06-25 | 贵州电网有限责任公司 | Self-adaptive comprehensive FA function logic control simulation method |
| CN113471941B (en) * | 2021-07-05 | 2023-08-01 | 河南源网荷储电气研究院有限公司 | Fault isolation control method for power distribution network |
| CN114050546A (en) * | 2021-11-17 | 2022-02-15 | 贵州电网有限责任公司 | Reclosing method for cooperatively starting network access line of small hydropower station |
| CN116667293A (en) * | 2023-05-08 | 2023-08-29 | 威胜能源技术股份有限公司 | Feeder automation scheme design based on self-adaption and post-acceleration protection |
| CN116316487B (en) * | 2023-05-12 | 2023-10-27 | 珠海许继电气有限公司 | Fault self-healing method and system for distribution line |
| CN117010206B (en) * | 2023-08-14 | 2024-07-23 | 广东工业大学 | Simulation method and terminal for power distribution network local feeder automation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102037630B (en) * | 2008-07-21 | 2013-03-13 | Abb研究有限公司 | Feeder automation system and method for operating the same |
| CN103022992A (en) * | 2012-11-23 | 2013-04-03 | 山东电力集团公司 | Feeder ground positioning method based on dispersion zero sequence voltage detection |
| CN104090208B (en) * | 2014-06-30 | 2016-08-17 | 国家电网公司 | Voltage-type distribution network failure method of disposal |
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