CN108767824A - A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application - Google Patents
A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application Download PDFInfo
- Publication number
- CN108767824A CN108767824A CN201810630164.0A CN201810630164A CN108767824A CN 108767824 A CN108767824 A CN 108767824A CN 201810630164 A CN201810630164 A CN 201810630164A CN 108767824 A CN108767824 A CN 108767824A
- Authority
- CN
- China
- Prior art keywords
- failure
- time
- spot
- protection
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H02H7/28—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 for meshed systems
-
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
It is delayed differential fitting method and application the present invention relates to a kind of intelligent feeder automation part on the spot; relay protection " being isolated on the spot " and the advantage of feeder automation " self- recoverage " are combined; preferentially it is isolated on the spot by relay protection in line failure, maximizes and reduce scope of power outage.If transforming plant protecting time delays nargin is larger, the cooperation of part delay stages difference is formed with guarantee section protective seletion, i.e., " branch line failure does not influence backbone, and backbone failure does not influence in station " with line feed terminals.If once overlapping self- recoverage by intelligent feeder automation function on the spot when branch line or backbone protection lose selectivity, while feeder automation function self- recoverage is relied on when transient fault occurs.
Description
Technical field
The present invention relates to wiring fault maintenance field more particularly to a kind of intelligent feeder automation part delay stages on the spot
Poor fitting method and pattern application.
Background technology
Feeder automation is to utilize automation equipment or system, monitors the operation conditions of power distribution network, finds power distribution network in time
Failure carries out the power supply of fault location, isolation and recovery to non-faulting region.In recent years, for different types of power supply area,
Intelligent power distribution network construction uses differentiation principle, feeder automation to realize that concentrated and on the spot pattern formula can be used in troubleshooting.
Type feeder automation does not depend on communication on the spot, and troubleshooting is completed by equipment autoprotection or time cooperation.Traditional coincidence
Device formula feeder automation is divided into voltage-time type, voltage and current time type isotype, and switching cooperation substation with line load goes out
Line breaker.
Independent of main website and communication, reliable in action, processing are rapid for the realization of automatic circuit formula feeder automation, adapt to compared with
For rugged environment.Voltage-time type is the most commonly seen formula feeder automation pattern of automatic circuit on the spot, passes through switch " no pressure point
The working characteristics cooperation substation outlet switch of lock, incoming call time-delay closing " is secondary to close a floodgate to realize, primary combined floodgate isolated fault area
Between, secondary combined floodgate restores the power supply of non-faulting section.According to different application demands, electric current is increased on the basis of voltage-time type
Assistant criteria forms the forking models such as voltage and current time type and Adaptive synthesis type.
At this stage, many B, C class power supply areas in China, which are promoted, tries out type feeder automation on the spot, but is met in extension process
To bottleneck, main cause is that current rack of distribution is difficult to the impact for bearing repeatedly to overlap.
Power distribution network is multi-point and wide-ranging, running environment is complicated and Frequent Troubles.It is how fast after short trouble occurs for distribution line
Speed positioning, isolated fault, it is the target to be realized of feeder automation to restore non-faulting block supply.And the automatic circuit promoted at present
There are following technical problems for formula feeder automation：
(1) it will all cause substation's outlet switch to trip after distribution line any point is broken down, that is, cause primary complete
Line has a power failure, and expands power failure area, reduces power supply reliability；
(2) when distribution line permanent fault, substation's outlet switch, which must complete secondary coincidence, can just restore electricity, i.e., non-event
Barrier region can experience to have a power failure in short-term twice；
(3) if when nearly leading-out terminal breaks down, short circuit current is larger, it is secondary overlap to transforming plant primary equipment impact compared with
Greatly, it reduces the service life.
Invention content
The purpose of the invention is to overcome the deficiencies in the prior art, obtain a kind of feeder automation part intelligent on the spot
Be delayed differential fitting method, relay protection " being isolated on the spot " and the advantage of feeder automation " self- recoverage " is combined, online
Preferentially it is isolated on the spot by relay protection when road is broken down, maximizes and reduce scope of power outage.If transforming plant protecting time delays
Nargin is larger, then delay stages difference cooperation in part is formed with line feed terminals with guarantee section protective seletion, i.e., " branch line failure is not
Backbone is influenced, backbone failure does not influence in station ".By intelligence on the spot when if branch line or backbone protection lose selectivity
Type feeder automation function once overlaps self- recoverage, while feeder automation function self- recoverage is relied on when transient fault occurs.
The present invention is achieved through the following technical solutions：
A kind of differential fitting method of intelligent feeder automation part delay on the spot, specifically comprises the following steps：
Step 1: when circuit any point is broken down, by upstream line feed terminals preferential isolation fault section, if upstream
Feed-line terminal protection loses selectivity, will there are two or multiple switch simultaneously protect separating brake；
Step 2: being introduced into the X times after feed-line terminal protection separating brake, meet if there is ballast to close condition, switch one after the X times
Secondary multiple action；
Step 3: entering the fault detect Y times after the X times, the non-separating brake of switch thinks successful reclosing in the Y times, and failure is not
Switch separating brake thinks reclosing failure in this grade, Y times, and failure is in this grade；
If Step 4: reclosing failure, line feed terminals are latched in gate-dividing state, if successful reclosing, are entered the Z times and are kept
"on" position is latched separating brake in short-term, failure also no longer separating brake is detected in the Z times；
Wherein, X is the time of coincidence when having calendering, and acquiescence 6s can be adjusted；Y is failure detection time, and acquiescence 4s can be adjusted；Z
To be latched opening time in short-term, adjusted according to X times and Protective levels；Feed-line terminal protection actuation time is dynamic for overcurrent protection
Make the time, is adjusted according to station default value.
Further, described to have ballast to close condition as protection separating brake, higher level has pressure, reclosing to throw, and X has pressure in the time.
Further, operating time of protection is more than 200ms in standing, and feed-line terminal protection actuation time is less than 100ms, when Z
Between adjust the failure detection time switched more than afterbody.
Further, the differential fitting method of intelligent feeder automation part delay selects one or two height to merge on the spot
Feeder Terminal Unit, operating time of protection is made of three parts, respectively：Fault determining time, relay output the time
And intrinsic opening time；Wherein fault determining time is of different sizes in 15ms-20ms according to fault current, and relay outputs the time
For 10ms, intrinsic opening time is 20-25ms.
A kind of feeder automation part intelligent on the spot is delayed the application of differential fitting method, is used for the outlet of 10kV substations
Switch exits instantaneous fast tripping protection, specific as follows：
10kV substations outlet switch exits instantaneous fast tripping protection, delay fast tripping protection definite value 1500A 300ms, overcurrent
Protection definite value is 400A 600ms, is adjusted by the differential fitting method of intelligent feeder automation part delay on the spot, right
Circuit backbone, branch line simulate permanent short failure, instantaneous short-circuit failure respectively, and intelligent fault treating procedure is such as on the spot
Under：
S1, permanent short failure, fault current 1360A, the separate AB phases of failure occur between backbone FD2-FD3；It is main
II section of protection definite value of main line FD1 switches and FD2 switches is respectively 1250A, 1000A, meets current start condition and starts timing, becomes
CX switches III sections of protection definite values in power station are 400A, meet current start condition and start timing:
After S1-A, 150ms, FD1, FD2 switch protection separating brake isolated fault, at this time transformer substation switch III sections of protections return；
S1-B：FD1 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 6s
Make, since failure is not after FD1, failure is not detected in the Y times, successful reclosing is simultaneously maintained under "on" position, in the Z times not
Separating brake again；
S1-C, FD2 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 6s
Make, since failure is after FD2, failure is detected in the Y times, reclosing is in failure and is latched under gate-dividing state；
Instantaneous short-circuit failure, fault current 419A, the separate BC phases of failure occur for S2, FZ3 branch line；Branch line FZ1 switches,
III sections of FZ3 switches, backbone FD1 and substation CX switches protection definite values are respectively 120A, 100A, 320A, 400A, meet electricity
Stream entry condition starts timing:
After S2-A, 200ms, FZ1, FZ3 switch on the spot isolated fault as shown in fig. 6, backbone FD1 and substation at this time
The III sections of protections of CX switches return；
S2-B, FZ1 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 6s
Make, since failure is not detected in the Y times, successful reclosing restores electricity；
S3-C, FZ3 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing is dynamic after 6s
Make, since failure is not detected in the failure vanishes Y times, successful reclosing restores electricity.
Compared with prior art, the present invention has following usefulness：
1) intelligent part is delayed under differential protection cooperation pattern on the spot, and branch line failure does not influence backbone power supply, main
Main failure does not influence interior power supply of standing, and maximizes and reduces power failure area, improves power supply reliability；
2) three-level is formed with substation to be delayed Graded coordination, is maximized and is reduced substation and bypass the immediate leadership tripping, every level-one all can generation
Fault Isolation and coincidence are carried out for substation；
3) failure can be completed in single shot reclosing positioning, isolation and self- recoverage are only configured, avoids repeatedly overlapping to primary
The impact that rack is brought.
4) higher level protection as this grade protect back-up protection, if this grade of shielding failure, back-up protection can still complete every
From failure and self- recoverage.
Description of the drawings
Fig. 1 is part delay stages difference cooperation schematic diagram in the embodiment of the present invention；
Fig. 2 is that the differential protection cooperation sequential logic diagram of intelligent part delay is intended on the spot in the embodiment of the present invention；
Fig. 3 is No. 1 block switch FD1 in the embodiment of the present invention, No. 2 block switch FD2 protect separating brake isolated fault state
Schematic diagram；
Fig. 4 be in the embodiment of the present invention No. 1 block switch FD1 reclosing success in short-term in no longer gate-dividing state signal
Figure；
Fig. 5 is No. 2 block switch FD2 unsuccessful reclosings and the signal being latched under gate-dividing state in the embodiment of the present invention
Figure；
Fig. 6 is No. 1 branch switch FZ1 in the embodiment of the present invention, No. 3 branch switch FZ3 protect separating brake isolated fault state
Schematic diagram；
Fig. 7 be in the embodiment of the present invention No. 1 branch switch FZ1 reclosing success in short-term in no longer gate-dividing state signal
Figure；
Fig. 8 is that No. 3 branch switch FZ3 successful reclosings restore electricity the schematic diagram of state in the embodiment of the present invention；
Reference numeral is as follows：
CX, outlet switch, FD1, No. 1 block switch, FD2, No. 2 block switches, FD3, No. 3 block switches, FZ1, No. 1 point
Zhi Kaiguan, FZ2, No. 2 branch switches, FZ3, No. 3 branch switches.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The differential fitting method of intelligent feeder automation part delay requires distribution line all fronts intelligent terminal to adopt on the spot
With breaker, have three-stage overcurrent protection function and have pressure time-delay closing, reclosing in failure locking, separating brake locking in short-term,
Be delayed automatic unlocking function, is provided simultaneously with earth fault judgement and defencive function.
It is come into force due to being partly delayed differential fitting method when substation has certain time-delay nargin, is suitable for delay
The cooperation of fast tripping protection or overcurrent protection.When protection for feed line forms part delay stages difference with protection in station to be coordinated, such as Fig. 1 institutes
Show, the three-level electrode difference protection cooperation of outlet switch, trunk wiretap, branch's wiretap will be formed：
1) outlet switch-trunk wiretap-branch's wiretap forms three-level Graded coordination；
2) branch line failure does not influence backbone, and backbone failure does not influence in station；
3) primary overlap completes transient fault self- recoverage；
If 4) protection loses selectivity, primary overlap completes self- recoverage.
5) handling result is uploaded into main website after the completion of failure treatment in situ, studies and judges fault section and sends a warning message；
Intelligent feeder automation part delay Graded coordination needs to adjust four kinds of times respectively on the spot：
1. the line feed terminals X times：Time of coincidence when having calendering, acquiescence 6s can be adjusted；
2. the line feed terminals Y times：Failure detection time, acquiescence 4s can be adjusted；
3. the line feed terminals Z times：It is latched opening time in short-term, is adjusted according to X times and Protective levels；
4. feed-line terminal protection actuation time：Overcurrent protection actuation time adjusts according to station default value.
Intelligent feeder automation part is delayed differential matching timing principle as shown in Fig. 2, short circuit occurs in circuit on the spot
When failure, by the line feed terminals preferential isolation fault zone of fault point upstream, by intelligence on the spot if protection loses selectivity
Type feeder automation, which once overlaps, completes non-faulting region self- recoverage, if while transient fault occurs once overlapping to restore electricity.
The differential matching timing principle of intelligent feeder automation part delay is as follows on the spot：
1) when short trouble occurs for circuit any point, by upstream line feed terminals preferential isolation fault section；
If 2) upstream feed-line terminal protection loses selectivity, will there are two or multiple switch simultaneously protect separating brake；
3) the X times are introduced into after feed-line terminal protection separating brake, meet if there is ballast to close condition, primary weight is switched after the X times
Conjunction acts；
4) enter the fault detect Y times after the X times, the non-separating brake of switch thinks successful reclosing in the Y times, and failure is not at this
Grade, switch separating brake thinks reclosing failure in the Y times, and failure is in this grade；
If 5) reclosing failure, circuit breaker lock is in gate-dividing state, if successful reclosing, into the Z times and keeps "on" position, i.e.,
It is latched separating brake in short-term, failure also no longer separating brake is detected in the Z times.
The differential fitting method necessary condition of intelligent feeder automation part delay is on the spot：
1) operating time of protection is more than 200ms in standing；
Part delay Graded coordination requires have regular hour delay nargin in station, is formed effectively with feed-line terminal protection
It is differential.
2) feed-line terminal protection actuation time is less than 100ms；
Realize that delay stages difference cooperation in part is more demanding to feed-line terminal protection actuation time, it is desirable that operating time of protection is long
Phase is stably held within 100ms, if operating time of protection fails to meet the requirements, part is delayed Graded coordination will partly mistake
Effect expands power failure area.
On the spot intelligent feeder automation part be delayed differential fitting method select one or two times height fusion line feed terminals
Equipment, operating time of protection are made of three parts, respectively：Fault determining time, relay output time and intrinsic separating brake
Time.Wherein fault determining time is of different sizes in 15ms-20ms according to fault current, and relay outputs the time as 10ms, Gu
It is 20-25ms to have opening time, therefore realizes that the feed-line terminal protection actuation time of part delay stages difference cooperation is 45-55ms,
Meet part delay Graded coordination requirement.
3) Z time settings are rationally effective.
Due to part delay Graded coordination backbone and branch line respectively be level-one, and backbone or branch line often install it is multiple
Line feed terminals, therefore can cause multiple line feed terminals when short trouble occurs while protect separating brake, and once overlap recovery
Key is rationally adjusting for Z times, the i.e. failure detection time for adjusting afterbody switch to be escaped of Z times, i.e. " Z >
NX+Y-Y=NX " (N：The maximum number of terminals that this grade of downstream may overlap).
An application as the method for the present invention：
Certain 10kV substations outlet switch exits instantaneous fast tripping protection, delay fast tripping protection definite value 1500A 300ms it is (primary
Value), overcurrent protection definite value is 400A 600ms (sub-value), is delayed differential match by intelligent feeder automation part on the spot
Conjunction method is adjusted, and is coordinated by method in 3.1,3.2.After protection fixed value adjusting being carried out to line feed terminals, the 10kV lines
Realize that the differential operational mode of intelligent feeder automation part delay, protection fixed value adjusting are as shown in table 1 on the spot in road.
Intelligent part is delayed differential relaying configuration table 1 10kV of table on the spot
Permanent short failure, instantaneous short-circuit failure are simulated respectively to circuit backbone, branch line, on the spot intelligent failure
Processing procedure is as follows：
(1) permanent short failure
Permanent short failure, fault current 1360A, the separate AB phases of failure occur such as between backbone FD2-FD3.Trunk
II section of protection definite value of line FD1 switches and FD2 switches is respectively 1250A, 1000A, meets current start condition and starts timing, power transformation
III sections of protection definite values of CX switches of standing are 400A, meet current start condition and start timing.
A：After 150ms, FD1, FD2 switch protection separating brake isolated fault as shown in figure 3, at this time transformer substation switch III sections guarantor
Shield returns；
B：FD1 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by
In failure not after FD1, failure is not detected in the Y times, successful reclosing is simultaneously maintained under "on" position, and Z no longer divides in the time
Lock is as shown in Figure 4；
C：FD2 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by
In failure after FD2, failure is detected in the Y times, reclosing is in failure and is latched under gate-dividing state as shown in Figure 5.
(2) instantaneous short-circuit failure
Instantaneous short-circuit failure, fault current 419A, the separate BC phases of failure such as occurs in FZ3 branch lines.Branch line FZ1 switches,
III sections of FZ3 switches, backbone FD1 and substation CX switches protection definite values are respectively 120A, 100A, 320A, 400A, meet electricity
Stream entry condition starts timing.
A：After 200ms, FZ1, FZ3 switch isolated fault on the spot as shown in fig. 6, backbone FD1 and substation CX are opened at this time
III sections of protections are closed to return；
B：FZ1 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by
In failure is not detected in the Y times, successful reclosing is as shown in Figure 7；
C：FZ3 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by
In failure is not detected in the failure vanishes Y times, successful reclosing restores electricity as shown in Figure 8.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (5)
- The differential fitting method 1. a kind of feeder automation part intelligent on the spot is delayed, which is characterized in that specific to include following step Suddenly：Step 1: when circuit any point is broken down, by upstream line feed terminals preferential isolation fault section, if upstream feeder line Terminal protection loses selectivity, will there are two or multiple switch simultaneously protect separating brake；Step 2: being introduced into the X times after feed-line terminal protection separating brake, meets if there is ballast to close condition, primary weight is switched after the X times Conjunction acts；Step 3: entering the fault detect Y times after the X times, the non-separating brake of switch thinks successful reclosing in the Y times, and failure is not at this Grade, switch separating brake thinks reclosing failure in the Y times, and failure is in this grade；If Step 4: reclosing failure, line feed terminals are latched in gate-dividing state, if successful reclosing, are entered the Z times and are kept closing a floodgate State is latched separating brake in short-term, failure also no longer separating brake is detected in the Z times；Wherein, X is the time of coincidence when having calendering, and acquiescence 6s can be adjusted；Y is failure detection time, and acquiescence 4s can be adjusted；Z is short When be latched opening time, adjusted according to X times and Protective levels；When feed-line terminal protection actuation time is that overcurrent protection acts Between, it is adjusted according to station default value.
- The differential fitting method 2. a kind of feeder automation part intelligent on the spot as described in claim 1 is delayed, feature exist In described to have ballast to close condition as protection separating brake, higher level has pressure, reclosing to throw, and X has pressure in the time.
- The differential fitting method 3. a kind of feeder automation part intelligent on the spot as described in claim 1 is delayed, feature exist In interior operating time of protection of standing is more than 200ms, and feed-line terminal protection actuation time is less than 100ms, and Z time settings are more than last The failure detection time of level-one switch.
- The differential fitting method 4. a kind of feeder automation part intelligent on the spot as claimed in claim 3 is delayed, feature exist In, on the spot intelligent feeder automation part be delayed differential fitting method select one or two times height fusion Feeder Terminal Units, Its operating time of protection is made of three parts, respectively：Fault determining time, relay output time and intrinsic opening time； Wherein fault determining time is of different sizes in 15ms-20ms according to fault current, relay output the time be 10ms, intrinsic separating brake Time is 20-25ms.
- The application of differential fitting method 5. a kind of feeder automation part intelligent on the spot is delayed, which is characterized in that be used for 10kV Substation's outlet switch exits instantaneous fast tripping protection, specific as follows：10kV substations outlet switch exits instantaneous fast tripping protection, delay fast tripping protection definite value 1500A 300ms, overcurrent protection Definite value is 400A 600ms, is adjusted by the differential fitting method of intelligent feeder automation part delay on the spot, to circuit Backbone, branch line simulate permanent short failure, instantaneous short-circuit failure respectively, and intelligent fault treating procedure is as follows on the spot：S1, permanent short failure, fault current 1360A, the separate AB phases of failure occur between backbone FD2-FD3；Backbone FD1 is switched and II section of protection definite value of FD2 switches is respectively 1250A, 1000A, is met current start condition and is started timing, substation III sections of protection definite values of CX switches are 400A, meet current start condition and start timing:After S1-A, 150ms, FD1, FD2 switch protection separating brake isolated fault, at this time transformer substation switch III sections of protections return；S1-B：FD1 switch higher levels have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by In failure not after FD1, failure is not detected in the Y times, successful reclosing is simultaneously maintained under "on" position, and Z no longer divides in the time Lock；S1-C, FD2 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by In failure after FD2, failure is detected in the Y times, reclosing is in failure and is latched under gate-dividing state；Instantaneous short-circuit failure, fault current 419A, the separate BC phases of failure occur for S2, FZ3 branch line；Branch line FZ1 switches, FZ3 are opened III sections of pass, backbone FD1 and substation CX switches protection definite values are respectively 120A, 100A, 320A, 400A, meet current start Condition starts timing:After S2-A, 200ms, FZ1, FZ3 switch isolated fault on the spot as shown in fig. 6, backbone FD1 and substation CX are opened at this time III sections of protections are closed to return；S2-B, FZ1 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by In failure is not detected in the Y times, successful reclosing restores electricity；S3-C, FZ3 switch higher level have electricity, satisfaction to have ballast conjunction entry condition to enter X time timing, and reclosing acts after 6s, by In failure is not detected in the failure vanishes Y times, successful reclosing restores electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630164.0A CN108767824A (en) | 2018-06-19 | 2018-06-19 | A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630164.0A CN108767824A (en) | 2018-06-19 | 2018-06-19 | A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767824A true CN108767824A (en) | 2018-11-06 |
Family
ID=63978688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810630164.0A Pending CN108767824A (en) | 2018-06-19 | 2018-06-19 | A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767824A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111756022A (en) * | 2020-05-12 | 2020-10-09 | 国网江西省电力有限公司电力科学研究院 | Fusion type in-situ feeder automatic design method |
| CN112234588A (en) * | 2020-11-10 | 2021-01-15 | 国网河南省电力公司经济技术研究院 | Circuit breaker-based power distribution network line protection 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 |
| CN115859547A (en) * | 2023-02-27 | 2023-03-28 | 国网江西省电力有限公司电力科学研究院 | Automatic generating system and method for distribution line fixed value scheme |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819158A (en) * | 1994-06-28 | 1996-01-19 | Masaji Nakajima | Automatic sectional switch |
| CN103378583A (en) * | 2012-04-11 | 2013-10-30 | 深圳市金博联电力技术有限公司 | Feeder automation technical scheme based on intelligent rapid vacuum circuit breaker |
| CN105024361A (en) * | 2015-04-16 | 2015-11-04 | 扬州科宇电力有限公司 | On-site feeder automatic protection method and application thereof |
| CN105071357A (en) * | 2015-08-13 | 2015-11-18 | 国家电网公司 | Fault processing method based on multistage extreme difference protection and power distribution network automation system |
| CN106026051A (en) * | 2016-07-26 | 2016-10-12 | 国电南瑞科技股份有限公司 | Fixed-value adaptive voltage and current time type on-site feeder automation method |
| CN106300285A (en) * | 2016-08-04 | 2017-01-04 | 国家电网公司 | It is independent of the self adaptation type feeder automation fault handling method on the spot of network topology |
| CN106532663A (en) * | 2016-12-09 | 2017-03-22 | 国网北京市电力公司 | Automatic feedback control method and apparatus for power distribution line |
| CN107069676A (en) * | 2016-12-09 | 2017-08-18 | 国家电网公司 | Power distribution network fault positioning and rapid isolation recovery control method |
| CN107565504A (en) * | 2017-09-04 | 2018-01-09 | 国网江西省电力公司电力科学研究院 | A kind of switch protection allocation list and look-up method suitable for 10kV distribution lines |
-
2018
- 2018-06-19 CN CN201810630164.0A patent/CN108767824A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819158A (en) * | 1994-06-28 | 1996-01-19 | Masaji Nakajima | Automatic sectional switch |
| CN103378583A (en) * | 2012-04-11 | 2013-10-30 | 深圳市金博联电力技术有限公司 | Feeder automation technical scheme based on intelligent rapid vacuum circuit breaker |
| CN105024361A (en) * | 2015-04-16 | 2015-11-04 | 扬州科宇电力有限公司 | On-site feeder automatic protection method and application thereof |
| CN105071357A (en) * | 2015-08-13 | 2015-11-18 | 国家电网公司 | Fault processing method based on multistage extreme difference protection and power distribution network automation system |
| CN106026051A (en) * | 2016-07-26 | 2016-10-12 | 国电南瑞科技股份有限公司 | Fixed-value adaptive voltage and current time type on-site feeder automation method |
| CN106300285A (en) * | 2016-08-04 | 2017-01-04 | 国家电网公司 | It is independent of the self adaptation type feeder automation fault handling method on the spot of network topology |
| CN106532663A (en) * | 2016-12-09 | 2017-03-22 | 国网北京市电力公司 | Automatic feedback control method and apparatus for power distribution line |
| CN107069676A (en) * | 2016-12-09 | 2017-08-18 | 国家电网公司 | Power distribution network fault positioning and rapid isolation recovery control method |
| CN107565504A (en) * | 2017-09-04 | 2018-01-09 | 国网江西省电力公司电力科学研究院 | A kind of switch protection allocation list and look-up method suitable for 10kV distribution lines |
Non-Patent Citations (1)
| Title |
|---|
| 刘健等: ""继电保护配合提高配电自动化故障处理性能"", 《电力系统保护与控制》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111756022A (en) * | 2020-05-12 | 2020-10-09 | 国网江西省电力有限公司电力科学研究院 | Fusion type in-situ feeder automatic design 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 |
| CN112234588A (en) * | 2020-11-10 | 2021-01-15 | 国网河南省电力公司经济技术研究院 | Circuit breaker-based power distribution network line protection system and method |
| CN115859547A (en) * | 2023-02-27 | 2023-03-28 | 国网江西省电力有限公司电力科学研究院 | Automatic generating system and method for distribution line fixed value scheme |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108767824A (en) | A kind of intelligent feeder automation part on the spot is delayed differential fitting method and application | |
| CN108767825A (en) | A kind of feeder automation intelligent on the spot is delayed differential fitting method and application entirely | |
| CN108666991A (en) | A kind of no-delay Graded coordination method of feeder automation intelligent on the spot and application | |
| CN106655120A (en) | Intelligent ground protection method and system for neutral point of power distribution network | |
| CN106026051A (en) | Fixed-value adaptive voltage and current time type on-site feeder automation method | |
| CN109950882B (en) | Small power supply grid-connected protection method | |
| CN108565974A (en) | One kind being based on the self-powered long-range failure protection method and system of protective device | |
| CN108134376A (en) | High-voltage bus fault rapid protection device and protection method | |
| CN100440671C (en) | Integrated protection system based on multiple traditional protection technologies | |
| CN113507101A (en) | Fault processing and isolating method adopting arc suppression coil branch current method | |
| CN112234588A (en) | Circuit breaker-based power distribution network line protection system and method | |
| JP4648789B2 (en) | Isolated operation prevention system | |
| CN100466415C (en) | Method for automatic putting new type backup power source into use under PC control | |
| EP1102295A2 (en) | Commutation type direct-current breaker | |
| CN104009454B (en) | Power grid regional protection method | |
| CN113253043B (en) | Fault identification and initial time calibration method of dynamic grounding processing device | |
| US2383327A (en) | Electrical system | |
| CN114123136A (en) | Protection method for power distribution network under distributed energy condition | |
| CN104242257A (en) | Method and device for realizing synergic protection of units of ring main unit | |
| Chen et al. | Design parameters and application of a 160kV mechanical HVDC circuit breaker | |
| US2221602A (en) | Network system of distribution | |
| CN206850414U (en) | A kind of power distribution network feedback of earthing mode self-identifying supplies line protective devices | |
| CN217062973U (en) | Intelligent integrated feed switch module | |
| Ntshiba et al. | Digital Implementation of an Auto-Reclose Protection Scheme for a Distribution System | |
| US4042963A (en) | Reduction of mechanical stresses on turbosets upon occurrence of three-pole mains short circuits near generators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
|
| RJ01 | Rejection of invention patent application after publication |