CN106787123B - 30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned for breaker group sequence method - Google Patents
30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned for breaker group sequence method Download PDFInfo
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- CN106787123B CN106787123B CN201611108622.1A CN201611108622A CN106787123B CN 106787123 B CN106787123 B CN 106787123B CN 201611108622 A CN201611108622 A CN 201611108622A CN 106787123 B CN106787123 B CN 106787123B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007363 ring formation reaction Methods 0.000 claims description 57
- 238000012546 transfer Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 3
- 230000000246 remedial effect Effects 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 229910001037 White iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The present invention, which discloses a kind of 30 degree phase angle difference distribution lines and do not have a power failure, to be turned for breaker group sequence method, by the selection of " back-up breaker ", realizes that the remedial measure under tripping occasion occur in conjunction, the breaker that unlinks；By each breaker sequence control method, have certainty strong, closes occasion of unlinking suitable for having 30 degree of phase angle difference distribution lines under the scene of high-speed communication.
Description
Technical field
Do not have a power failure the present invention relates to 30 degree of phase angle difference distribution lines of one kind and turns to belong to power grid neck for breaker group sequence method
Domain.
Background technique
110kV and following power distribution network, which are mainly realized not have a power failure by cyclization mode, to be turned to supply, i.e., when power distribution network carries out load
When transfer, overhaul of the equipments, network reconfiguration, " heat is fallen " is carried out to load by Loop Closing Operation, to reduce power off time, improves power supply
Reliability.The conjunction Open Loop Operation of some area power grids is very frequent, accounts for the 48.1% of scheduling regular job project.It is grasped in cyclization
During work, by the Alloy White Iron of the generations such as cyclization point two sides voltage magnitude, phase angle, impedance and load difference, not only to ring
The main electrical equipment on road brings certain dash current, it is also possible to cause corresponding relay protection to act, influence the safety of power grid
Stable operation；Close the voltge surge and power quality for unlinking and also needing to consider switching overvoltage to circulation along road access electrical equipment
Fluctuation.
Due to historical reasons, many area 35kV and the above substation main transformer different there is wiring；By electricity at that time
Network planning is drawn and design, presses 35kV or low pressure 10kV outlet not to power to same donor site in such main transformer.With load growth and
Route extends, and such outlet is geographically constantly close, and there is the demands for mutually turning to supply.But the cyclization point of such route
There is fix 30 ° of phase angle differences for two sides；By current dispatching rule, such route is forbidden to charge cyclization, it is necessary to use and " first have no progeny
Close " power failure mode is realized and turns to supply, thus responsible consumer will be caused to have a power failure.And the main transformer progress modernization overlay that butted line is different, one
Great amount of investment is then needed, the two is since soil anxiety is difficult to using newly-built site, and the transformation of old station but will generate and stop for a long time
Electricity.
Fig. 1 is current typical power distribution network localized network, and Tu Zhong substation A unlinks there are 2 combinations, and (first closes group of unlinking to group
Group of unlinking is closed with second).In operation, it needs to turn to be powered by All other routes by the load of JA3536 inlet wire at present, at least 2
Kind turns for path:
(1) it is powered by another inlet wire of same substation A, that is, FL3637 inlet wire, do not have a power failure the operation for turning to supply are as follows:
1) breaker K2 is first closed, forms 500kV bus-main transformer T1- main transformer T3- main transformer T6-FL3637 inlet wire-at this time
The station the A station 35kV bus I- busbar breaker-A 35kV bus II- JA3536 inlet wire-main transformer T4- main transformer T2-500kV bus
Circulation；
2) circuit breaker K1 is solved.
It is unlinked by breaker K2 cyclization, breaker K1, realizes that the station load is changed to FL3677 inlet wire by JA3536 inlet wire
Power supply, but there are 30 ° of phase difference of voltage when breaker K2 cyclization；The reason is that 2 35kV inlet wires of operation are respectively from difference
The middle pressure (110kV) of 220kV transforming plant main transformer and the side low pressure (35kV), and the middle pressure of two main transformers, low-pressure side winding method are different.
(2) it is powered by the interconnection AB3556 between substation A and substation B, essence is by the inlet wire of B substation
MB3556 power supply.Do not have a power failure the operation for turning to supply are as follows:
1) breaker K3 is first closed, forms the 220kV bus-station main transformer T5- MB3556 inlet wire-B 35kV bus-at this time
AB3556 interconnection-the station interconnection breaker K3- A 35kV bus II- JA3536 inlet wire-main transformer T4-220kV bus ring
Stream；
2) circuit breaker K1 is solved.
It is unlinked by breaker K3 cyclization, breaker K1, realizes that the station load is changed to AB3556 inlet wire by JA3536 inlet wire
Power supply, but when breaker K3 cyclization, there are 30 ° of phase angle differences；The reason is that 2 35kV inlet wires of operation, although both from difference
220kV transforming plant main transformer low-pressure side (35kV), but the low-pressure side winding method of two main transformers is different.
Above operation order, not in view of closing, when Open Loop Operation, there is the occasion of tripping in breaker, and once occurs
Unlinking unsuccessfully especially occurs in misaction, then already present circulation will start to generate main electrical equipment in loop more tight
The fuel factor of weight；It unlinks not in time, then lasting fuel factor will affect the insulation characterisitic for even destroying main electrical equipment, and less serious case will
The service life of main electrical equipment is reduced, if seriously exceeding main equipment fuel factor, burning for main electrical equipment will be caused, cause to advise greatly
The power failure of mould.
In view of this, the present inventor studies this, specially develops 30 degree of phase angle difference distribution lines of one kind and do not have a power failure
Turn for breaker group sequence method, thus this case generates.
Summary of the invention
Do not have a power failure the object of the present invention is to provide 30 degree of phase angle difference distribution lines of one kind and turns for breaker group sequence method.
To achieve the goals above, solution of the invention is:
30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned for breaker group sequence method:
Step 1: breaker selects: selecting to turn for incoming breaker to be the breaker K1 that unlinks, selection first is wait turn for inlet wire
Breaker is the first cyclization breaker K2, selects interconnection breaker for the second cyclization breaker K3, selects the breaker K1 that unlinks
The line-breaker of place route opposite side is that the first standby is unlinked breaker K0, and selection is unlinked the mother of bus where breaker K1
Breaker is that the second standby is unlinked breaker K4, alternatively, the opposite side line broken circuit of route where the second cyclization breaker of selection K3
Device is that the second standby is unlinked breaker K4'；
Step 2: according to turning to select the first cyclization breaker K2 or the second cyclization breaker K3 cyclization for path；If closing
Ring is unsuccessful, then this operation terminates, and without any consequence, needs to check cyclization breaker；
Step 3: if cyclization success, the breaker that unlinks unlink K1, if unlinking success, this operation terminates, and system passes through
Go through the circulation of shortest time；
Step 4: unsuccessful, corresponding first cyclization breaker K2 or the second cyclization breaker K3 if previous step is unlinked
It unlinks, the success if cyclization breaker unlinks, this operation terminates；Operation failure, but self- recoverage success；At this point, system
The circulation of certain time will be undergone；After operation, need to check the breaker that unlinks；
Step 5: if the first cyclization breaker K2 or the second cyclization breaker K3 unlink unsuccessful, carrying out the first standby
The breaker K0 that unlinks unlinks；If the first standby is unlinked, breaker K0 unlinks success, and load transfer success；Distribution network system will be through
Go through the circulation of long period；After operation, need to check cyclization, unlink breaker tripping the reason of；
Step 7: if the first standby is unlinked, breaker K0 unlinks unsuccessful, carry out the second standby unlink breaker K4 or
K4' unlinks；If the second standby is unlinked, breaker K4 or K4' unlink success, and first realizes part load transfer for inlet wire wait turn
Success, and second wait turn for inlet wire, then zero load realize turns to supply；At this point, distribution network system will undergo the circulation of long period；
After operation, need to check cyclization, the breaker that unlinks, standby 1 unlink breaker tripping the reason of；
Step 8: if the second standby is unlinked, breaker K4 or K4' also unlink unsuccessful, and of the present invention turn for method
Terminate, needs to unlink using the more supervisory breaker actuation of loop formed to realize.
30 degree of phase angle difference distribution lines of the present invention, which do not have a power failure, to be turned for breaker group sequence method, by the way that " standby is disconnected
The selection of road device " realizes that the remedial measure under tripping occasion occur in conjunction, the breaker that unlinks；Pass through each breaker sequential control
Method has certainty strong, closes occasion of unlinking suitable for having 30 degree of phase angle difference distribution lines under the scene of high-speed communication.
Below in conjunction with drawings and the specific embodiments, the invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the power distribution network localized network figure of the prior art；
Fig. 2 is the power distribution network localized network figure of the present embodiment；
Fig. 3 is the breaker group sequence method flow diagram of the present embodiment.
Specific embodiment
As shown in Fig. 2, a kind of power distribution network localized network, including turn for inlet wire JA3536, first wait turn for inlet wire FL3637
With second wait turn for inlet wire MB3556, wherein described turn becomes with first wait turn for inlet wire FL3637 for inlet wire JA3536, first
Power station A is connected, and second wait turn for inlet wire MB3556 the second transformation station of connection B；In the first substation A, the station A 35kV bus M14
It is connected by busbar breaker with the station A 35kV bus M15, the station A 35kV bus M15 passes through interconnection breaker, interconnection simultaneously
AB3556 is connected with the station B 35kV bus M16.
Turn as shown in figure 3,30 degree of phase angle difference distribution lines do not have a power failure for breaker group sequence method:
Step 1: breaker selects: selecting to turn for the breaker on inlet wire JA3536 to be the breaker K1 that unlinks, selects first
Wait turn for the breaker on inlet wire FL3637 to be the first cyclization breaker K2, selecting the breaker on interconnection AB3556 is second
Cyclization breaker K3, the line-breaker of the route opposite side where breaker K1 that selects to unlink unlink breaker K0 for the first standby,
The busbar breaker of bus where breaker K1 of selecting to unlink is that the second standby is unlinked breaker K4, alternatively, selecting the second cyclization
The opposite side line-breaker of route where breaker K3 is that the second standby is unlinked breaker K4'；
Step 2: according to turning to select the first cyclization breaker K2 or the second cyclization breaker K3 cyclization for path, if closing
Ring is unsuccessful, then this operation terminates, and without any consequence, needs to check cyclization breaker；
Step 3: if cyclization success, the breaker K1 that unlinks unlinks, if unlinking success, this operation terminates, system warp
Go through the circulation of shortest time；
Step 4: unsuccessful, corresponding first cyclization breaker K2 or the second cyclization breaker K3 if previous step is unlinked
It unlinks, the success if cyclization breaker unlinks, this operation terminates；Operation failure, but self- recoverage success；At this point, system
The circulation of certain time will be undergone；After operation, need to check the breaker that unlinks；
Step 5: if the first cyclization breaker K2 or the second cyclization breaker K3 unlink unsuccessful, carrying out the first standby
The breaker K0 that unlinks unlinks；If the first standby is unlinked, breaker K0 unlinks success, and load transfer success；Distribution network system will be through
Go through the circulation of long period；After operation, need to check cyclization, unlink breaker tripping the reason of；
Step 7: if the first standby is unlinked, breaker K0 unlinks unsuccessful, carry out the second standby unlink breaker K4 or
K4' unlinks；If the second standby is unlinked, breaker K4 or K4' unlink success, and first realizes part load transfer for inlet wire wait turn
Success, and second wait turn for inlet wire, then zero load realize turns to supply；At this point, distribution network system will undergo the circulation of long period；
After operation, need to check cyclization, the breaker that unlinks, standby 1 unlink breaker tripping the reason of；
Step 8: if the second standby is unlinked, breaker K4 or K4' also unlink unsuccessful, and of the present invention turn for method
Terminate, needs to unlink using the more supervisory breaker actuation of loop formed to realize.
30 degree of phase angle difference distribution lines described in the present embodiment, which do not have a power failure, to be turned to pass through " standby for breaker group sequence method
The selection of breaker " realizes that the remedial measure under tripping occasion occur in conjunction, the breaker that unlinks；It is controlled by each breaker sequence
Method processed has certainty strong, closes occasion of unlinking suitable for having 30 degree of phase angle difference distribution lines under the scene of high-speed communication.
Above-described embodiment and schema and non-limiting product form and style of the invention, any technical field it is common
The appropriate changes or modifications that technical staff does it all should be regarded as not departing from patent category of the invention.
Claims (1)
1.30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned to be applied to a kind of 30 degree of phase angle difference distribution wires for breaker group sequence method
Road, which does not have a power failure, to be turned for system, and the system comprises turn for inlet wire, first wait turn for inlet wire and second wait turn for inlet wire, wherein institute
It states and turns to be connected with the first substation wait turn for inlet wire for inlet wire, first, second connects the second substation for inlet wire wait turn；?
In one substation, on the one hand pass through busbar breaker with the bus for turning to be connected for inlet wire with first wait turn the bus phase for inlet wire
Even, on the other hand it is connected wait turn for the bus of inlet wire by interconnection with second, interconnection is equipped with breaker；Described turn for into
Line is equipped with 2 breakers, and described first wait turn for inlet wire and second wait turn for being respectively equipped with 1 breaker on inlet wire；It is special
Sign is that described method includes following steps:
Step 1: breaker selects: selecting to turn for incoming breaker to be the breaker K1 that unlinks, selection first is wait turn for inlet wire open circuit
Device is the first cyclization breaker K2, selects interconnection breaker for the second cyclization breaker K3, and selection is unlinked where breaker K1
The line-breaker of route opposite side is that the first standby is unlinked breaker K0, and selection is unlinked the mother open circuit of bus where breaker K1
Device is that the second standby is unlinked breaker K4, alternatively, select the opposite side line-breaker of the second place cyclization breaker K3 route for
Second standby is unlinked breaker K4'；
Step 2: according to turning to select the first cyclization breaker K2 or the second cyclization breaker K3 cyclization for path；If cyclization is not
Success, then this sequence operation terminates, and is not carried out load transfer, needs to check the first cyclization breaker K2 or the second cyclization
Breaker K3；
Step 3: if cyclization success, to unlinking, breaker K1 unlinks, if unlinking success, this operation terminates, system
Undergo the circulation of shortest time；
Step 4: if step 3 is unlinked unsuccessful, unlink to the first cyclization breaker K2 or the second cyclization breaker K3,
If unlinking success, this operation terminates；Operation failure, but self- recoverage success, at this point, system will undergo the circulation of certain time；
After operation, need to check the breaker K1 that unlinks；
Step 5: if the first cyclization breaker K2 described in step 4 or the second cyclization breaker K3 unlink unsuccessful, carrying out
The first standby breaker K0 that unlinks unlinks；If the first standby is unlinked, breaker K0 unlinks success, load transfer success；System will
Undergo the circulation of long period；After operation, need to check the breaker K1 that unlinks to unlink not successfully, and unlink not successfully
The first cyclization breaker K2 or the reason of the second cyclization breaker K3 tripping；
Step 6: if first standby of step 5 is unlinked, breaker K0 unlinks unsuccessful, carry out the second standby unlink breaker K4 or
K4' unlinks；If the second standby is unlinked, breaker K4 or K4' unlink success, and first realizes part load transfer for inlet wire wait turn
Success, and second realizes a turn confession for inlet wire is then zero load wait turn；At this point, system will undergo the circulation of long period；Operation knot
Shu Hou needs to check the breaker K1 that unlinks to unlink not successfully, the first cyclization breaker K2 or the second cyclization breaker K3,
One standby unlink breaker K0 tripping the reason of；
Step 7: if the second standby is unlinked, breaker K4 or K4' also unlink unsuccessful, and the sequence method terminates, and need to adopt
With the more supervisory breaker actuation of the loop of formation, unlinked with realizing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108622.1A CN106787123B (en) | 2016-12-06 | 2016-12-06 | 30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned for breaker group sequence method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611108622.1A CN106787123B (en) | 2016-12-06 | 2016-12-06 | 30 degree of phase angle difference distribution lines, which do not have a power failure, to be turned for breaker group sequence method |
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| Publication Number | Publication Date |
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| CN106787123A CN106787123A (en) | 2017-05-31 |
| CN106787123B true CN106787123B (en) | 2019-06-25 |
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| CN111585275B (en) * | 2020-05-13 | 2023-08-22 | 国网浙江省电力有限公司绍兴供电公司 | Control method for intelligent ring opening and closing operation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753063A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Transformer substation bus load transferring method and system |
| KR20160040780A (en) * | 2014-10-06 | 2016-04-15 | 나인규 | Uninterruptible Power Receiving And Substation Facility with 2 Bus-bars |
-
2016
- 2016-12-06 CN CN201611108622.1A patent/CN106787123B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160040780A (en) * | 2014-10-06 | 2016-04-15 | 나인규 | Uninterruptible Power Receiving And Substation Facility with 2 Bus-bars |
| CN104753063A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Transformer substation bus load transferring method and system |
Non-Patent Citations (1)
| Title |
|---|
| 双电源10kV用户合环运行对电网的影响及对策分析;陈思明等;《电气应用》;20141105;第33卷(第21期);第160-164页 |
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