CN107086580A - A kind of looped network intelligence control system and its control method - Google Patents
A kind of looped network intelligence control system and its control method Download PDFInfo
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- CN107086580A CN107086580A CN201710403378.XA CN201710403378A CN107086580A CN 107086580 A CN107086580 A CN 107086580A CN 201710403378 A CN201710403378 A CN 201710403378A CN 107086580 A CN107086580 A CN 107086580A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of looped network intelligence control system, including more than two transformers, the high voltage side of transformer is connected with high-voltage line, low-pressure side is provided with low-voltage bus bar, the low-voltage bus bar connection at least two-way load circuit, also include switch board, the switch board includes control centre and communication means, the communication means includes an interbus and some contact loops, the contact loop is corresponding with the transformer to be set, contact loop one end is connected with the interbus, the load circuit includes calling loop all the way, the contact loop other end calls loop to be connected with described, loop is called to be equipped with switching mechanism with described in the contact loop, the switching mechanism is electrical connected with the control centre, the control centre controls the switching mechanism.Technical scheme is judged by embedded computer, can be that can be achieved without manual intervention, reduces artificial input, and the artificial operation to circuit is also reduced in addition, reduces the work risk that staff is likely encountered.
Description
Technical field
The invention belongs to distribution control technology field, specifically, it is related to a kind of looped network intelligence control system and its control
Method.
Background technology
With the arrival of electric intelligent digital times, traditional power supply network occurs in that new trend, especially
It is, in distribution link, from passive response, to develop into the dynamic equilibrium of supply and demand for realizing power system with control by monitoring.Pass
The centralization of system, one-way fashion electric network composition can not meet the demand in new intelligent city, and future needs an interconnection mutual
Move, controllable, safe and reliable intelligent network distribution system can be felt.
Distribution network is the key link that electric energy distribution is fed back with electricity needs, and its broad covered area, scene is complicated.Current city
In city, the low-voltage distribution transformer of villages within the city section uses the radioactive mode of connection, and low-voltage distribution network is without interconnector.The summer peak meeting phase
Between, there is power shortage in villages within the city section, villages within the city's distribution transformer load distribution that many distribution transformings are powered is uneven.Sent out by load
Exhibition influence, heavy duty and underloading distribution transforming are simultaneously deposited.Meanwhile, when separate unit distribution transforming failure, low-voltage load can not be adjusted to other distribution transformings, supplied
Electric reliability is relatively low, during peak load, easily because overloading or overloading, causes transformer circuit short circuit, causes to burn transformer,
In order to avoid the situation, power failure of avoiding the peak hour is normally carried out, but because power consumption is big, causes to need frequently to have a power failure that use of avoiding the peak hour can be met
The demand of electricity, causes the complaint of more client.
Therefore, the distribution transformer load existed to solve villages within the city's low-voltage network present situation wiring can not be redistributed, power can
By the low problem of property, existing distribution looped network is transformed.
The content of the invention
The technical problem to be solved of the present invention is that distribution transformer load distribution can be carried out automatically by providing one kind, improve power supply
The looped network intelligence control system and its control method of reliability.
The present invention solve above-mentioned technical problem technical scheme be：
A kind of looped network intelligence control system, including more than two transformers, the high voltage side of transformer are connected with high-voltage line, low pressure
Side is provided with low-voltage bus bar, and the low-voltage bus bar connects at least two-way load circuit, in addition to switch board, and the switch board includes
Control centre and communication means, the communication means include interbus and some contact loops, the contact loop with
The transformer is corresponding to be set, and contact loop one end is connected with the interbus, and the load circuit is included all the way
Loop is called, the contact loop other end calls loop to be connected with described, the contact loop calls loop equal with described
Provided with switching mechanism, the switching mechanism is connected with the control centre, and the control centre controls the switching mechanism.
The present invention another corresponding technical scheme for using of correspondence for：
A kind of looped network intelligent control method applied to looped network intelligence control system, comprises the following steps：
S1, digital display meter obtains correspondence and calls loop and its electrical parameter data of corresponding step down side to send into control
The heart；
S2, the embedded computer of control centre is divided all electrical parameter datas for calling loop and step down side
Analysis, judges transformer each status, and the state includes power failure state, mistake, heavy condition, normal condition and idle shape
State, is judging a certain transformer in power failure state or mistake, heavy condition, while there is another transformer is in idle condition
When, proceed by loop and turn confession；
S3, embedded computer by power failure state or cross, the corresponding switch for calling loop of the transformer of heavy condition
Mechanism disconnects, by with power failure state or cross, the transformer of heavy condition is corresponding calls the contact loop that loop is connected
Switching mechanism closure, while by the transformer in idle condition it is corresponding call loop with contact loop on switching mechanism
Close, realize that loop turns confession.
The present invention's has the advantages that：The present invention by the way that the load circuit all the way in transformer is transformed,
Loop is called in formation, make it is corresponding in multiple transformers call loop to form mutually standby state via contact loop,
A certain transformer may cross, heavy duty when call loop to call the transformer of Light Condition to be powered in the transformer, drop
The overload possibility of low transformer, the program solves transformer because overload causes the situation of burning transformer, while can avoid
Using the mode for power failure of avoiding the peak hour, and then solve the problem that frequently has a power failure；In addition, technical scheme relies on embedding assembly
Machine is judged, can be that can be achieved without manual intervention, reduces artificial input, and the artificial behaviour to circuit is also reduced in addition
Make, reduce the work risk that staff is likely encountered.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention；
Fig. 2 is system framework schematic diagram of the invention；
Fig. 3 is switch board block schematic illustration of the invention；
Fig. 4 is implementation operation diagram of the invention；
Fig. 5 is step S2 of the present invention concrete operations figure；
The meaning that each sequence number is represented in accompanying drawing is as follows：
1 transformer, 2 low-voltage bus bars, 3 load circuits, 31 call loop, 4 switch boards, 5 control centres, and 51, embedded computer,
52 touch-screens, 53 alarm modules, 6 communication means, 61 interbus, 62 contact loops, 7 switching mechanisms, 71 transformers, 72 electricity behaviour
Breaker, 73 digital display meters.
Embodiment
The present invention is elaborated below in conjunction with the accompanying drawings.
A kind of looped network intelligence control system of the embodiment of the present invention as Figure 1-3, including more than two transformers 1, institute
State the high-pressure side of transformer 1 to be connected with high-voltage line, low-pressure side is provided with low-voltage bus bar 2, the low-voltage bus bar 2 connects at least two-way and born
Loop 3, in addition to switch board 4 are carried, the switch board 4 includes control centre 5 and communication means 6, and the communication means 6 includes one
Bar interbus 61 and the corresponding setting with the transformer 1 of some contact loops 62, the contact loop 62, it is described to get in touch with back
The one end of road 62 is connected with the interbus 61, and the load circuit 3 includes calling loop 31 all the way, and the contact loop 62 is another
One end calls loop 31 to be connected with described, and the contact loop 62 calls loop 31 to be equipped with switching mechanism 7 with described, described
Switching mechanism 7 is connected with the control centre 5, and the control centre 5 controls the switching mechanism 7.The load circuit 3 is minimum
For two-way, at most on the premise of being loaded no more than transformer 1, can unrestrictedly it increase, in looped network intelligence control system, if
More than two transformers 1 are equipped with, this more than two transformers 1 are standby each other, i.e., call loop 31 both to make in transformer 1
For the load circuit 3 recalled, another transformer 1 can also be introduced by communication means 6 calls loop 31, is its power supply,
Specially call or lead to control centre 5 to be judged, the loop state in which of transformer 1 is depended primarily on, if being in
Power failure state or cross, heavy condition then to recall, carry out loop and turn to supply, if normal condition is then without operation, if idle
State, then may be provided as loop and turn confession.All connections herein are to be electrically connected with.
Communication means 6 is mainly used in connecting in multiple transformers 1, the quantity of contact loop 62 in communication means 6 with
The transformer 1 that it is got in touch with is identical or slightly many, it is ensured that each transformer 1 calls loop 31 to correspond to be connected to contact and fill
The loop of contact all the way 62 in 6 is put, all contact loops 62 are connected by interbus 61, and intercommunication, when system works only
It need to be closed or opening operation by the switching mechanism 7 to correspondence loop, you can loop 31 will be called in a certain transformer 1
Turn to be supplied to calling in loop 31 for another transformer 1, be powered by the transformer 1, in the presence of this communication means 6,
Be state standby each other as long as be linked into communication means 6 calls loop 31, i.e., the transformer 1 of all Access Control cabinets 4
It is the spare transformer of other transformers liaison net Nei.
Specifically, the switching mechanism 7 includes digital display meter 73, transformer 71 and electricity behaviour's breaker 72, the digital display meter 73
It is connected with the control centre 5, the digital display meter 73 is built-in with dropping resistor, can recognize that the low-voltage bus bar of the low-pressure side of transformer 1
The load voltage data in voltage data and corresponding loop, the transformer 71 is connected with the digital display meter 73, the transformer 71
For current transformer, for obtaining the low-voltage bus bar current data of the low-pressure side of transformer 1 and the load current data in corresponding loop,
The transformer 71 transmits the electrical parameter data of acquisition the electrical parameter number for obtaining itself to the digital display meter 73, digital display meter 73
Outside being shown according to the electrical parameter data transmitted with transformer 71, also all electrical parameter datas are transmitted into control simultaneously
The heart 5, is analyzed for control centre 5, so as to learn loop status in loop end, rather than has to go to switch board
4 can obtain relevant information.The control centre 5 controls the electricity behaviour breaker 72.It is described call on loop 31 described open
The switching mechanism 7 that shutting mechanism 7 is arranged on head end or the end for calling loop 31, the contact loop 62, which is arranged on, to be called
On circuit between loop 31 and interbus.Electricity behaviour's breaker 72 can realize the disconnection of breaker automatically by receiving signal
It with closure, thus can directly be operated by control centre 5, reduce artificial interference, it is to avoid occur accident, it is preferred that the electricity
It is the serial breaker of plastic casing of HNH 800N to grasp breaker 72, and the digital display meter 73 is structure as a whole with the transformer 72, preferably
From the intelligent electric instrument of STM-630A models.
The control centre 5 includes embedded computer 51, touch-screen 52 and alarm module（53）, the embedding assembly
Machine 51 is the main body of the control centre 5, and the touch-screen 52 is connected with the embedded computer 51.Touch-screen 52 is main
For showing computing and the operational circumstances of embedded computer 51, while being also as to the input instruction of embedded computer 51
Medium, alarm module（53）By embedded computer（51）Control, embedded computer 51 by transformer 71 transmit come
Data are carried out after analysis judgement, it is determined whether implement to turn to supply work, normal set is judged by embedded computer 51,
The feasible loop that carries out turns to supply, infeasible, stops operation and is alarmed by alarm module 53, while being also provided with manually
Operation, when operation can be not carried out in embedded computer 51, is manually operated and realizes that loop turns confession.
The present invention is applied to a kind of a kind of looped network intelligent control method of looped network intelligence control system as illustrated in figures 4-5, bag
Include following steps：
S1, digital display meter 73 obtains correspondence and calls loop 31 and its electrical parameter data of the low-pressure side of corresponding transformer 1 to send to control
Center 5 processed；
S2,51 pairs of the embedded computer of control centre 5 is all to call loop 31 and the electrical parameter data of the low-pressure side of transformer 1 to enter
Row analysis, judges the respective status of transformer 1, and the state includes power failure state, mistake, heavy condition, normal condition and sky
Not busy state, judge a certain transformer 1 be in power failure state or cross, heavy condition, while there is another transformer 1 is in the free time
During state, proceed by loop and turn confession；
S21, embedded computer is monitored to all low-voltage bus bar voltage datas, if finding a certain low-voltage bus bar voltage data
During less than dead electricity setting value, then judge that correspondence transformer 1 is in power failure state, stopping is to crossing, the judgement of heavy condition, performs step
Rapid S24, conversely, performing step S22；
S22, embedded computer 51 is ranked up on earth to low-voltage bus bar current data by height；
S23, highest low-voltage bus bar current data is compared, and judges whether correspondence transformer 1 exceeded, heavy duty setting
Value, judge if exceeding, if heavily loaded setting value correspondence transformer 1 be in, heavy condition, on the contrary then determination circuit is in normally
State, end operation；
S24, when judging that transformer 1 is in power failure state or mistake, heavy condition, embedded computer 51 is to load current data
It is ranked up by low to high；
S25, minimum load current data is compared, and whether correspondence transformer 1 is judged less than idle setting value, if being less than
Idle setting value, then judge that correspondence transformer 1 is in idle condition, perform step S3, conversely, then judging the correspondence nothing of transformer 1
Method meets the requirement that loop turns to supply, and stops operation startup alarm module 53 and is alarmed.
S3, embedded computer 51 by power failure state or cross, the transformer 1 of heavy condition is corresponding calls loop
31 switching mechanism 7 disconnects, by with power failure state or cross, the transformer 1 of heavy condition is corresponding calls loop 31 to be connected
The switching mechanism 7 in the contact loop 62 connect is closed, at the same by the transformer 1 in idle condition it is corresponding call loop 31 with connection
Switching mechanism 7 on network loop 62 is closed, and realizes that loop turns confession；
S4, embedded computer 51 is monitored to the electrical parameter data of transformer 1, when the transformer 1 for turning to supply in loop
When electrical parameter data is less than idle setting value, correspondence switching mechanism 7 is reset, loop is released and turns to supply.
Above method step integrally realizes a kind of overall operation of looped network intelligence control system, is judging whether to need to turn
, it is necessary to set dead electricity setting value in advance for during, cross, heavily loaded setting value and idle setting value, cross, heavily loaded setting value bag
Overload setting value and heavily loaded setting value are included, heavily loaded setting value is no more than the load current value of transformer 1, generally by heavy duty setting
Value is set under the specified current flow value of transformer 1, by the data setting of 0.7-0.9 times of specified current flow value, and overload setting value is
The specified current flow of transformer 1, during general estimation, main using heavily loaded setting value, the general heavy duty duration is long, directly enters
Row loop turns to supply, if data exceed overload setting value, the quick loop that carries out turns to supply, the best condition of idle setting value be for 0,
In zero load i.e. in the loop, but under actual conditions, the situation can not possibly be present, therefore, and idle setting value is generally according to transformation
0.05-0.15 times of the specified current flow value of device 1 is set, it is ensured that in the transformer 1 of heavy duty loop 31 will called to pass through
When contact loop 62 is linked into the transformer 1 of free time, burden is not resulted in idle transformer 1, dead electricity setting value is 0, one
As if dead electricity situation occurs, i.e., transformer 1 is distress condition, and low-pressure side voltage should be 0.Setting in contact loop 62 is opened
7 pairs of the shutting mechanism contact loop 62 is acquired with the voltage in the low-pressure side of transformer 1 with electric current, and electrical parameter data is also sent
To control centre 5, embedded computer 51 is finding contact loop 62 with the electrical parameter data of the low-pressure side of transformer 1 less than the free time
When setting value, it is considered that its corresponding transformer 1 there will be no, heavy condition, therefore cancel specializing in for loop, i.e.,
By correspondence switch reconfiguration, the called loop 31 of calling of original is gone back into original loop, has script transformer 1 to be powered, it is excellent
Choosing, the transformer 1 is 630kAV transformers, and its load current value In=909A formulates current value Ir=727A.
In the above, when judging dead electricity, overload, heavy condition, be also set with dead electricity delay T1, overload delay T2,
Heavy duty delay T3, when determination circuit is in abnormal condition, can again judge by the delay of certain time, it is ensured that dead electricity,
Effectively, the dead electricity delay is 0 ~ 10 second, and overload delay is 0 ~ 10 second, and heavy duty delay is 1200 ~ 3600 for overload, heavy condition
Second.
A kind of looped network intelligence control system and its control method of the present invention realizes the transformation to power distribution network, reduces transformation
The overload possibility of device 1, while turning the interim solution supplied when also providing dead electricity to loop, the program solves transformer
1 causes the situation of burning transformer 1 because of overload, while the mode using power failure of avoiding the peak hour can be avoided, and then solves what is frequently had a power failure
Problem.
Above content is to combine the further description that specific preferred embodiment is done to the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of looped network intelligence control system, includes the transformer of more than two（1）, the transformer（1）High-pressure side and high pressure
Line is connected, and low-pressure side is provided with low-voltage bus bar（2）, the low-voltage bus bar（2）Connection at least two-way load circuit（3）, its feature
It is：Also include switch board（4）, the switch board（4）Including control centre（5）With communication means（6）, the communication means
（6）Including an interbus（61）With some contact loops（62）, the contact loop（62）With the transformer（1）Relatively
It should set, the contact loop（62）One end and the interbus（61）It is connected, the load circuit（3）Including calling all the way
Loop（31）, the contact loop（62）The other end calls loop with described（31）It is connected, the contact loop（62）With institute
State and call loop（31）It is equipped with switching mechanism（7）, the switching mechanism（7）With the control centre（5）It is connected, the control
Center（5）Control the switching mechanism（7）.
2. looped network intelligence control system according to claim 1, it is characterised in that：The switching mechanism（7）Including digital display
Table（73）, transformer（71）With electricity behaviour's breaker（72）, the control centre（5）With the digital display meter（73）It is connected, it is described mutual
Sensor（71）With the digital display meter（73）It is connected, the control centre（5）The control electricity behaviour breaker（72）.
3. looped network intelligence control system according to claim 2, it is characterised in that：The control centre（5）Including insertion
Formula computer（51）, touch-screen（52）, the embedded computer（51）For the control centre（5）Main body, the touch
Screen（52）With the embedded computer（51）It is connected.
4. looped network intelligence control system according to claim 2, it is characterised in that：The transformer（71）For Current Mutual Inductance
Device.
5. the looped network intelligence control system according to claim 1-4 any one, it is characterised in that：It is described to call loop
（31）On the switching mechanism（7）Loop is called described in being arranged on（31）Head end or end.
6. looped network intelligence control system according to claim 5, it is characterised in that：The control centre is additionally provided with alarm mould
Block（53）, the alarm module（53）There is the embedded computer（51）Control.
7. a kind of looped network intelligent control method of looped network intelligence control system applied to described in claim 1-6 any one,
It is characterised in that it includes following steps：
S1, digital display meter（73）Obtain correspondence and call loop（31）And its corresponding transformer（1）The electrical parameter data hair of low-pressure side
Deliver to control centre（5）；
S2, control centre（5）Embedded computer（51）Loop is called to all（31）With transformer（1）The electricity ginseng of low-pressure side
Number data are analyzed, and judge transformer（1）Respective status, the state includes power failure state, mistake, heavy condition, just
Normal state and idle condition, are judging a certain transformer（1）In power failure state or mistake, heavy condition, while there is another change
Depressor（1）During in idle condition, proceed by loop and turn confession；
S3, embedded computer（51）By in power failure state or mistake, the transformer of heavy condition（1）It is corresponding to call loop
（31）Switching mechanism（7）Disconnect, by with power failure state or cross, the transformer of heavy condition（1）It is corresponding to call loop
（31）The contact loop being connected（62）Switching mechanism（7）Closure, while by the transformer in idle condition（1）It is corresponding
Call loop（31）With contact loop（62）On switching mechanism（7）Close, realize that loop turns confession.
8. looped network intelligent control method according to claim 7, it is characterised in that：It is female that the electrical parameter data includes low pressure
Line current data, load current data, low-voltage bus bar voltage data and load voltage data.
9. looped network intelligent control method according to claim 8, it is characterised in that the step S2 also includes：
S21, embedded computer is monitored to all low-voltage bus bar voltage datas, if finding a certain low-voltage bus bar voltage data
During less than dead electricity setting value, then correspondence transformer is judged（1）In power failure state, stopping is to crossing, the judgement of heavy condition, performs
Step S24, conversely, performing step S22；
S22, embedded computer（51）Low-voltage bus bar current data is ranked up on earth by height；
S23, highest low-voltage bus bar current data is compared, and judges correspondence transformer（1）Whether exceeded, heavy duty is set
Value, correspondence transformer was judged if exceeding, if heavily loaded setting value（1）Be in, heavy condition, on the contrary then determination circuit be in just
Normal state, end operation；
S24, is judging transformer（1）During in power failure state or mistake, heavy condition, embedded computer（51）To load current
Data are ranked up as low to high；
S25, minimum load current data is compared, and judges correspondence transformer（1）Whether less than idle setting value, if low
In idle setting value, then correspondence transformer is judged（1）In idle condition, step S3 is performed, conversely, then judging correspondence transformer
（1）The requirement that loop turns to supply can not be met, startup alarm module is stopped operation（53）Alarmed.
10. the looped network intelligent control method according to claim 7-9 any one, it is characterised in that：Also include following step
Suddenly：
S4, embedded computer（51）To transformer（1）Electrical parameter data be monitored, when in loop turn supply transformer
（1）Electrical parameter data when being less than idle setting value, will correspondence switching mechanism（7）Reset, release loop and turn to supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710403378.XA CN107086580B (en) | 2017-06-01 | 2017-06-01 | Ring network intelligent control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403378.XA CN107086580B (en) | 2017-06-01 | 2017-06-01 | Ring network intelligent control system and control method thereof |
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| CN107086580A true CN107086580A (en) | 2017-08-22 |
| CN107086580B CN107086580B (en) | 2023-07-14 |
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ID=59608237
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109697539A (en) * | 2017-10-23 | 2019-04-30 | 云南电网有限责任公司 | A kind of efficient identification method of distribution risk |
| CN110783915A (en) * | 2019-10-30 | 2020-02-11 | 威胜电气有限公司 | Multi-distribution-platform-area power supply method and power supply system |
| CN112152205A (en) * | 2020-09-08 | 2020-12-29 | 南京德尔森电气有限公司 | Intelligent low-voltage automatic switching management unit and management method |
| WO2021022949A1 (en) * | 2019-08-02 | 2021-02-11 | 全球能源互联网研究院有限公司 | Looped network controller and control method |
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| Publication number | Publication date |
|---|---|
| CN107086580B (en) | 2023-07-14 |
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