CN108631437A - A kind of low-voltage distribution network automatic control system - Google Patents
A kind of low-voltage distribution network automatic control system Download PDFInfo
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- CN108631437A CN108631437A CN201810218809.XA CN201810218809A CN108631437A CN 108631437 A CN108631437 A CN 108631437A CN 201810218809 A CN201810218809 A CN 201810218809A CN 108631437 A CN108631437 A CN 108631437A
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- 238000004891 communication Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 8
- 230000006837 decompression Effects 0.000 description 8
- 230000004069 differentiation Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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- H02J13/0013—
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- H02J13/0075—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- 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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of low-voltage distribution network automatic control systems, including：Computer, intelligent terminal, server, low-voltage distribution network automatic improving taiwan area and GSM message automation subsystem；Low-voltage distribution network automatic improving taiwan area is the management region of low-voltage distribution network, for the output end of middle voltage distribution networks to be switched to low-voltage circuit, and carries out Data Detection and setting switch to low-voltage circuit；Computer and intelligent terminal are connect with server signal；Low-voltage distribution network automatic improving taiwan area is connect with server and GSM message automation subsystem signal respectively.It is an advantage of the current invention that realizing function of the operating personnel to the multinomial straighforward operation of each low-voltage platform area, the meaningless power failure that pressure failure is come to depression belt in effectively excluding influences, and protects distribution transforming health and the electrical equipment safety of user's three-phase；Operating personnel improve the efficiency of management and management level according to the customized parameter of the composition adjustment operation of load demand.
Description
Technical field
The present invention relates to power domains, more particularly, to a kind of low-voltage distribution network automatic control system.
Background technology
Currently, medium voltage distribution network automatic technology is quickly grown, however lacks intelligent automation between mesolow net and coordinate
Solution.There are following problems for day-to-day operation between existing mesolow net：After medium voltage distribution network automatic operating, when
When medium voltage distribution network line fault, low pressure master switch can not coordinate the operating status of Medium voltage switch or circuit breaker to change, and realize oneself coordinated
Dynamicization control function；Causing can not automatic reclosing after decompression, undervoltage trip in low pressure master switch；
Secondly, the switch producer different product structure of current running low-voltage load master switch is different, gives low pressure connection
Centralized and automatic bring the pressure of high operation difficulty and cost；
In some cases, because the matching problem of logic can not be with middle pressure when low pressure master switch encounters decompression undervoltage trip
Automated system keep matching, cause restore electric power feeding time it is long, power supply reliability is low, customer outage hours length complain it is more；
Current protective device has a single function, can not be according to the otherness demand of actual user terminal in distribution transforming phase-deficient operation
Shi Zidong cuts off load, causes transformer long-time phase-deficient operation, endangers distribution transforming health and user's three phase electric equipment is especially
Motor.The electrical management mechanism in some areas causes user to compensate complaint because burning user's three phase electric equipment in order to prevent,
Even low pressure master switch defencive function is closed in selection, this brings certain risk to operation of power networks again.
Invention content
The present invention is the defect overcome described in the above-mentioned prior art, provides one kind.
In order to solve the above technical problems, technical scheme is as follows：
A kind of low-voltage distribution network automatic control system, including：Computer, intelligent terminal, server, low-voltage distribution network automation
Taiwan area and GSM message automation subsystem is transformed；
The low-voltage distribution network automatic improving taiwan area is the management region of low-voltage distribution network, is used for the output end of middle voltage distribution networks
Switch to low-voltage circuit, and Data Detection and setting switch are carried out to low-voltage circuit；
The computer and intelligent terminal are connect with server signal；
The low-voltage distribution network automatic improving taiwan area is connect with server and GSM message automation subsystem signal respectively.
Above-mentioned operation principle is：Computer and intelligent terminal are connect with server first, pass through server controls low pressure
The related data of taiwan area detection low-voltage circuit is transformed in distribution automation, after end of operation, relevant information is automatic by GSM message
Sub-systems are transmitted on the intelligent terminal of operating personnel；Operational order can be also sent to by operating personnel by GSM network
GSM message automation subsystem, the Field Force of low-voltage distribution network automatic improving taiwan area can be to low tensions after receiving operational order
Road carries out switching manipulation.
Preferably, the low-voltage distribution network automatic improving taiwan area includes 10KV/0.4KV transformers, enter line side voltage acquisition
Module, low-voltage load master switch, CT acquisition modules, outgoing line side voltage acquisition module, control module and communication module；
Control module matches in low-voltage distribution network automatic improving taiwan area with other modules, and control is various to have automatically controlled work(
Can low-voltage load master switch, and can according to the rated capacity of transformer adjust Protection parameters, according to the type of load user,
Purposes and the different of mode carry out differentiation protection control program setting；
The control module includes relay protection module and processing module, and control module is connect with communication module signal, is led to
Letter module with server and GSM message automation subsystem for connecting；
The control module also with enter line side voltage acquisition module, low-voltage load master switch, CT acquisition modules and outgoing line side
Voltage acquisition module is electrically connected；
The input terminal of the 10KV/0.4KV transformers is connect with outside 10KV medium voltage sides, and output end provides the electricity of 0.4KV
It flows and is connect with the input terminal of enter line side voltage acquisition module；
The input terminal of the low-voltage load master switch is connect with the output end of enter line side voltage acquisition module, output end and CT
The input terminal of acquisition module connects；
The input terminal of the outgoing line side voltage acquisition module is connect with the output end of CT acquisition modules, and output end is set with outside
Standby connection.
Preferably, the CT modules are electromagnetic current transducer, for the high current of input side to be passed through certain proportion
The smaller electric current of numerical value is converted to, in order to measure current values.
Preferably, the communication module is GSM/GPRS modules, for carrying out remote information transmission and to control module
Send teleinstruction.
Preferably, the enter line side voltage acquisition module and outgoing line side voltage acquisition module include A/D converter, are used for
Voltage data is read after analog signal in network system is converted to digital signal.
Compared with prior art, the advantageous effect of technical solution of the present invention is：
Low-voltage distribution network automatic control system is realized by the way that low-voltage distribution network automatic improving taiwan area, set is arranged with server
GPRS/GSM is communicated so that the multinomial straighforward operation to each low-voltage platform area may be implemented in low-voltage distribution network automatic control system
Function, the meaningless power failure that pressure failure is come to depression belt in effectively excluding influence, and distribution transforming health and user's three-phase is protected electrically to set
Standby safety；
Operating personnel obtain the operation shape of low-voltage distribution network automatic improving taiwan area by GSM message automation subsystem at any time
Condition helps to improve the efficiency of management and management level according to the customized parameter of the composition adjustment operation of load demand；
Operating personnel choose whether input electric leakage, ground protection according to the needs of user type, effectively cut off low-voltage distribution transformer
The harm that net failure is brought to power grid.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is low-voltage distribution network automatic control system schematic diagram.
Fig. 2 is low-voltage distribution network automatic improving taiwan area schematic diagram.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to more preferably illustrate that the present embodiment, the certain components of attached drawing have omission, zoom in or out, actual product is not represented
Size；
To those skilled in the art, it is to be appreciated that certain known features and its explanation, which may be omitted, in attached drawing
's.
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
Embodiment 1
A kind of low-voltage distribution network automatic control system, as shown in Figure 1, including：Computer, intelligent terminal, server, low pressure
Taiwan area and GSM message automation subsystem is transformed in distribution automation；
Low-voltage distribution network automatic improving taiwan area is the management region of low-voltage distribution network, for switching to the output end of middle voltage distribution networks
Low-voltage circuit, and Data Detection and setting switch are carried out to low-voltage circuit；
Computer and intelligent terminal are connect with server signal；
Low-voltage distribution network automatic improving taiwan area is connect with server and GSM message automation subsystem signal respectively.
In the present embodiment, as shown in Fig. 2, low-voltage distribution network automatic improving taiwan area include 10KV/0.4KV transformers, into
Line side voltage acquisition module, low-voltage load master switch, CT acquisition modules, outgoing line side voltage acquisition module, control module and communication
Module；
Control module includes relay protection module and processing module, and control module is connect with communication module signal, communicates mould
Block with server and GSM message automation subsystem for connecting；
Control module also with enter line side voltage acquisition module, low-voltage load master switch, CT acquisition modules and outgoing line side voltage
Acquisition module is electrically connected；
The input terminal of 10KV/0.4KV transformers is connect with outside 10KV medium voltage sides, and output end provides the electric current of 0.4KV simultaneously
It is connect with the input terminal of enter line side voltage acquisition module；
The input terminal of low-voltage load master switch is connect with the output end of enter line side voltage acquisition module, and output end is acquired with CT
The input terminal of module connects；
The input terminal of outgoing line side voltage acquisition module is connect with the output end of CT acquisition modules, and output end connects with external equipment
It connects.
In the present embodiment, CT modules are electromagnetic current transducer.
In the present embodiment, communication module be GSM/GPRS modules, for carry out remote information transmission and to control mould
Block sends teleinstruction.
In the present embodiment, enter line side voltage acquisition module and outgoing line side voltage acquisition module include A/D converter.
The detailed operation principle of the low-voltage distribution network automatic control system of the present embodiment is as follows：
The purpose of low-voltage distribution network automatic control system is in coordinating that pressure failure leads to the state change of power grid and carries out
Matching so that low-voltage load master switch can in middle pressure failure automatic brake separating, and low pressure is always opened after automatic debugging combined floodgate
It closes and completes automatic closing operation；The characteristics of low-voltage equipment can be directed to simultaneously, has earth fault differentiation, electric leakage discrimination function, triggering
Corresponding trip protection operation, plays the role of protecting transformer and isolated fault.
In low-voltage distribution network automatic improving taiwan area, 10KV/0.4KV transformers first switch to piezoelectricity in external 10KV
0.4KV low tensions, then by outgoing line side voltage acquisition module, enter line side voltage acquisition module and CT acquisition modules to 0.4KV
Low tension carries out the real-time detection of voltage and current, to danger such as decompression/under-voltage, over-pressed, electric leakage, off zero, ground connection, short circuit, overloads
Situation is differentiated, is protected by low-voltage load master switch.
Relay protection module receives data and order by communicating mould, also by GPRS/GSM communication modules send out data and
GSM information.
Processing modules implement multiple function, including：Protection parameters are adjusted, according to the type, purposes and mode of load user
Different carry out differentiation protection control programs setting；
When ground connection, the fault type to leak electricity occur for low-voltage circuit, operating personnel distinguish self-defined choosing by processing module
Select the control action of " input " or " exiting " control module to the shunted exciter tripping of low-voltage load master switch；When be set as " putting into "
When ground connection or leak current fault type occur, operating personnel are by low-voltage automation control module to low voltage switch shunted exciter tripping
Control action output opportunity be set as one be more than 0 delay time that can customize, i.e., differentiate the time in, if being provided with
Delay time needs to wait for the control action that delay time just exports shunted exciter tripping；
After control module is successfully exported to the control action of the shunted exciter tripping of low voltage switch, processing module can
With to whether needing the reclosing operation once switched progress self-defined；As needed can be individually to whether exporting once
Or secondary reclosing operation is set as " putting into " or " exiting ", while the delay time of action can be set every time；
Processing module has the distribution of middle pressure protective device typical current time type, voltage-time type, voltage and current type
The function of protective device monitors the voltage condition of the mains side and load side of low-voltage load master switch respectively, and switch is closing position, and
Switch both sides are below setting valve and without streams, and (whether definite value size, time-delay action put into separating brake after reaching delay
With setting)；Switch is closing position, and switchs both sides and be both less than setting valve, and separating brake is (when definite value size, deferred action after reaching delay
Between, whether put into and can be arranged, df/dt lockings can be set)；Switch is closing position, and switchs either side voltage and both greater than adjust
Value reaches separating brake after delay (whether definite value size, time-delay action put into and can be arranged, and df/dt lockings can be arranged)；
Switch is dividing position, arbitrary side to be more than setting valve, closes a floodgate after reaching delay；Switch is dividing position, both sides have pressure be maintained at 20S with
On, determine that switch is in ready state, unilateral decompression is closed a floodgate through delaying；
Residual voltage is latched：When jumping position, either side voltage reaches residual voltage setting valve.50MS or more is kept, and is sentenced in residual voltage
Hour in the other time.Device no longer closes a floodgate when offside has pressure.Residual voltage differentiates that the time is generally less than to have and presses closing time and unilateral side
Decompression closing time；
Quick-break is latched：Mistake judgement caused by prevent from shoving, under voltage and current function, when more than quick-break electric current not
Allow to trip；
Closing locking state.After low-voltage load master switch has pressing lock, low-voltage automation control module triggers decompression
Differentiate, overcurrent accelerates differentiation, earthing discrimination, closing locking in the electric leakage differentiation time.Low-voltage load master switch is when jumping position state
If arbitrary side voltage has residual voltage situation and keeps 50MS or more, and disappears in residual voltage differentiates the time, low-voltage load
Switch no longer closes a floodgate (residual voltage differentiates that the time is generally less than to have and presses closing time and unilateral decompression closing time) when offside has pressure；
Residual voltage locking does not allow to automatically reset, residual voltage reset condition be meet switch close position+arbitrary side have pressure, two have pressure 20S, close
There are any one of pressing lock, button 4 kinds of conditions of reset in lock side.
Server, communication module and processing module match, and make operating personnel can be remotely by computer and intelligent terminal
Following functions are realized to low-voltage distribution network automatic improving taiwan area：
Pass through the processing module and GSM message automation subsystem of low-voltage distribution network automatic improving taiwan area, real-time online prison
Survey electric current, voltage, frequency, power, power factor (PF), electricity, current imbalance rate etc. electrical parameter；
Processing module by low voltage switch point, close location status variation；And will overload, and ground connection, leak electricity, is short-circuit,
While information in terms of the load conditions transformation such as overvoltage/undervoltage, decompression is sent to WEB server by GSM message automation subsystem
Specified maintenance people is issued by GSM message net；
Processing module can preset number of receiving a crime report, the number of receiving a crime report being predetermined, can also be by being automatically controlled to low pressure
Number in module sends definite value on short message modification order modified module；
The control of remote control divide-shut brake operates, if can be by allowing the communication of background server GPRS it is necessary to dispatch
Mode, to the low pressure automatic control module of taiwan area send divide-shut brake operational order.
Communication module includes the communication pattern of GPRS and GSM in low-voltage distribution network automatic improving taiwan area.GPRS patterns are used for
The communication of server and the data and control command of transformation background partition；GSM mode is then specifically for for each low-voltage platform area
The management personnel that take responsibility it is different and set, facilitate specific person liable can still can be by short in the poor taiwan area of signal
Letter is remotely controlled operation to taiwan area in time.
Operating personnel can access server by computer or intelligent terminal, check acquisition after obtaining access right
The data of data information and generation, such as data analytical table, taiwan area operating condition table.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (5)
1. a kind of low-voltage distribution network automatic control system, which is characterized in that including：Computer, intelligent terminal, server, low pressure
Taiwan area and GSM message automation subsystem is transformed in distribution automation；
The low-voltage distribution network automatic improving taiwan area is the management region of low-voltage distribution network, for switching to the output end of middle voltage distribution networks
Low-voltage circuit, and Data Detection and setting switch are carried out to low-voltage circuit；
The computer and intelligent terminal are connect with server signal；
The low-voltage distribution network automatic improving taiwan area is connect with server and GSM message automation subsystem signal respectively.
2. low-voltage distribution network automatic control system according to claim 1, which is characterized in that the low-voltage distribution network automation
Transformation taiwan area includes 10KV/0.4KV transformers, enter line side voltage acquisition module, low-voltage load master switch, CT acquisition modules, goes out
Line side voltage acquisition module, control module and communication module；
The control module includes relay protection module and processing module, and control module is connect with communication module signal, communicates mould
Block with server and GSM message automation subsystem for connecting；
The control module also with enter line side voltage acquisition module, low-voltage load master switch, CT acquisition modules and outgoing line side voltage
Acquisition module is electrically connected；
The input terminal of the 10KV/0.4KV transformers is connect with outside 10KV medium voltage sides, and output end provides the electric current of 0.4KV simultaneously
It is connect with the input terminal of enter line side voltage acquisition module；
The input terminal of the low-voltage load master switch is connect with the output end of enter line side voltage acquisition module, and output end is acquired with CT
The input terminal of module connects；
The input terminal of the outgoing line side voltage acquisition module is connect with the output end of CT acquisition modules, and output end connects with external equipment
It connects.
3. low-voltage distribution network automatic control system according to claim 2, which is characterized in that the CT modules are electromagnetic type
Current transformer.
4. low-voltage distribution network automatic control system according to claim 2, which is characterized in that the communication module is GSM/
GPRS module, for carrying out remote information transmission and sending teleinstruction to control module.
5. low-voltage distribution network automatic control system according to claim 2, which is characterized in that the enter line side voltage acquisition
Module and outgoing line side voltage acquisition module include A/D converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810218809.XA CN108631437A (en) | 2018-03-16 | 2018-03-16 | A kind of low-voltage distribution network automatic control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810218809.XA CN108631437A (en) | 2018-03-16 | 2018-03-16 | A kind of low-voltage distribution network automatic control system |
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| CN201810218809.XA Pending CN108631437A (en) | 2018-03-16 | 2018-03-16 | A kind of low-voltage distribution network automatic control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110674158A (en) * | 2019-10-15 | 2020-01-10 | 广东电网有限责任公司 | Method and system for automatically updating local area for low-voltage user |
| CN114844213A (en) * | 2022-05-13 | 2022-08-02 | 国网山东省电力公司滨州供电公司 | A kind of energy-saving system and method for supporting community based on distribution network automation terminal |
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| CN114844213A (en) * | 2022-05-13 | 2022-08-02 | 国网山东省电力公司滨州供电公司 | A kind of energy-saving system and method for supporting community based on distribution network automation terminal |
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