CN108254642A - A kind of 10kV power distribution networks - Google Patents
A kind of 10kV power distribution networks Download PDFInfo
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- CN108254642A CN108254642A CN201810024054.XA CN201810024054A CN108254642A CN 108254642 A CN108254642 A CN 108254642A CN 201810024054 A CN201810024054 A CN 201810024054A CN 108254642 A CN108254642 A CN 108254642A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H02J13/0006—
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H02J13/0013—
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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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- 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
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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- Quality & Reliability (AREA)
- Automation & Control Theory (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
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Abstract
The present invention relates to a kind of 10kV power distribution networks, the 10kV power distribution networks have a kind of 10kV low-voltage intelligent distribution network systems of no-power compensation function, including terminal part, computer part, communications portion, monitoring part, it is characterised in that：The terminal part includes feed line automatization terminal, power transformer detecting terminal, ring main unit, Switching Station；The computer part includes network workstation, application server, front server, firewall router, printer sharing；The communications portion includes MSTP equipment, Ethernet switch, EPON；The compensation part is made of current transformer, voltage transformer, Switching Power Supply, signal conditioning circuit, capacitor switching control device, optical coupling device, master devices, data storage device and A/D convertor circuit, the data of the master devices output are uploaded to the data/address bus, and the data are received, stored, analyzed and handled by the distribution management work station.
Description
The application is application No. is 2016100704206, and the applying date is on 01 31st, 2016, and invention and created name is
A kind of divisional application of the patent of " 10kV low-voltage intelligents distribution network system with no-power compensation function ".
Technical field
This application involves a kind of distribution network system, especially a kind of 10kV low-voltage intelligent distribution with no-power compensation function
Net system.
Background technology
10kV power distribution networks are as hair, an important ring for transmission system connection user side, positioned at the terminal link of electric system,
It is the important composition part of mesolow distribution, mainly serves as the function of being user's conveying and distribution electric energy.Due to China's economy
Horizontal continuous improvement, the continuous expansion of power demand, thus increasingly higher demands are proposed to the reliability of power distribution network.
China's distribution net work structure falls behind for many years, lacks the planning of reasonable science always, mainly has in conventional electrical distribution net following
It is insufficient：Communication node enormous amount wide variety, is unevenly distributed, system organization difficulty；Communication system is distributed outdoors more,
The test of harsh weather needs higher guaranteed reliability；Communication bandwidth requirement cannot be guaranteed, due to a variety of communications of use
System and multilayer integration mode, different business stream require bandwidth and real-time difference.
Line loss per unit is that the main economic technology of the plan of concentrated expression power network planning, production run and management level refers to
Mark.How accurately, power distribution network theoretical loss electricity is reasonably calculated automatically, while the ratio calculated shared by all kinds of losses makes
Current problems faced.
Cause power quality underproof the reason is that various, it is most importantly active and idle for power distribution network
Problem is that the idle influence to voltage is more prominent again in the two.Only reactive power and reactive power flow is rationally divided in power grid
Cloth just can ensure that in-situ balancing is realized in idle layering, subregion, and reduces the main solution of network loss and line loss.In recent years
Come, many researchs carry out reactive-load compensation by using power electronic equipment so that power quality have to a certain extent compared with
Big improvement, but these power electronic devices can introduce harmonic wave during turning on and off；Due to being mounted on substation or circuit
End can only realize point compensation, can not accomplish to realize idle work optimization and compensation from the angle of entire power distribution network.
Invention content
In order to solve in power distribution network in the prior art communication system there are the defects of, how rationally to estimate line loss per unit so as to comment
The problem of the problem of estimating the working efficiency of power distribution network and reactive-load compensation, the present invention propose a kind of with no-power compensation function
10kV low-voltage intelligent distribution network systems.
The technical scheme is that：A kind of 10kV low-voltage intelligent distribution network systems with no-power compensation function, including
Terminal part, computer part, communications portion and part is repaid,
The terminal part includes feed line automatization terminal, power transformer detecting terminal, ring main unit, Switching Station；
The computer part includes network workstation, application server, front server, firewall router, shares
Printer；The network workstation include distribution dispatching workstations, distribution management work station, system maintenance work station, it is advanced should
Use work station；The application server include filesystem server, database server, SCADA servers, Web server,
Advanced application server；The SCADA servers acquire the distant side that the terminal device uploads, remote signalling, electric energy, number in real time
The data such as amount, definite value, while to each terminal part transmission data information and control command；
The communications portion includes MSTP (Multiple Spanning Tree Protocol) equipment, Ethernet switch, EPON (Ethernet passive lights
Network), one of them main MSTP (Multiple Spanning Tree Protocol) equipment is connect respectively with multiple from MSTP (Multiple Spanning Tree Protocol) equipment,
Main MSTP (Multiple Spanning Tree Protocol) equipment is connect by the Ethernet switch with the front server, institute
It states front server to connect with data/address bus by the firewall router, the network workstation, is shared application server
Printer is commonly connected to the firewall router on the data/address bus, carries out data exchange；
It is described from MSTP (Multiple Spanning Tree Protocol) equipment by matching described in the EPON (Ethernet passive optical network) connections
Electronic station, the electronic station of matching by optical fiber by connecting the terminal device, the communication with the communication line that optical splitter forms
Circuit is double chain, and the optical splitter is placed on the information access point of each terminal device, realizes the whole network self-healed protection.
The compensation part is by current transformer, voltage transformer, Switching Power Supply, signal conditioning circuit, capacitor switching
Control device, optical coupling device, master devices, data storage device and A/D convertor circuit are formed, and the master devices are defeated
The data gone out are uploaded to the data/address bus, the data are received by the distribution management work station, are stored, are analyzed and
Reason；
Wherein, the current transformer, voltage transformer access the three-phase circuit of the power distribution network, mutual by the voltage
Sensor and current transformer carry out real-time data acquisition to the voltage and current of power grid, are passed through by voltage transformer and current transformer
It crosses the signal conditioning circuit and voltage and current signal is converted into the low voltage and current signal of amplitude, input the AD conversion
Circuit completes sampling, and the master devices are by measuring time of two rising edges of the A/D convertor circuit output pulse signal
Interval to determine the signal period of the power distribution network, ensures sampling while property；The master devices through oversampling, analysis and
Optimization calculates, and generates switching control command, and the signal of I/O mouthfuls of outputs carries out optocoupler coupling device, operational order is sent to again
The capacitor switching control device carries out switching operation, and the data storage device storage calculates analysis program；The power supply
Output switching terminal connects the reset pin of the master devices, in the case of crashing in appearance, hand-reset.
The capacitor switching control device includes two capacitor groups, one group of fuse switch group, one group of arrester
Group, wherein, the three-phase circuit extraction of the power distribution network is respectively connected to the fuse switch in the fuse switch group, institute
It states two capacitor groups and the parallel connection of arrester group accesses the output terminal of the fuse switch group, wherein per group capacitor group packet
Three resistance, three capacitances and three high voltage connectors are included, the capacitor is using single star wire laying mode, the main controller
Part controls the high voltage connector to carry out switching, avoids introducing harmonic wave using power electronic equipment switching.
The advanced application work station includes database storage module, Controlling line loss module, wherein operating system module, institute
Dimension table and true table of the database storage module storage by expression line loss information are stated, wherein the dimension table includes time dimension
Table, management owner's dimension table, topological dimension table, loss cause dimension table, drop damage method dimension table, computational methods dimension table.
The data of the Controlling line loss module based on the database storage module carry out processing analysis, including file mould
Block, system setup module, equipment query module, line loss processing module and statistical analysis module.
Beneficial effects of the present invention：
(1) on the basis of stable data acquisition means, accurate complete data is provided for entire power supply enterprise and are supported,
Strong data basis is provided for business decision layer decision；
(2) by information system management, simplify the work of Controlling line loss person, promote its working efficiency；
(3) the specific link of line loss generation is found in the problem that rapidly finding in line loss calculation and analysis in time
And reason, provide scientific suggestion to reduce line loss；
(4) communication node is effectively reduced, reduces system redundancy；
(5) communication reliability is strong；
(6) effectively monitoring electric network reactive-load distribution situation, and being compensated accordingly in time.
Description of the drawings
The system that Fig. 1 is the present invention forms block diagram；
Fig. 2 is the Controlling line loss module composition schematic diagram of the present invention；
Fig. 3 is the composition block diagram of the compensation part of the present invention；
Fig. 4 is the circuit diagram of the capacitor switching control device of the present invention.
Specific embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
The embodiment of invention is with reference to shown in figure 1-4.
A kind of 10kV low-voltage intelligent distribution network systems with no-power compensation function, including terminal part, computer part,
Communications portion and part is repaid,
The terminal part includes feed line automatization terminal, power transformer detecting terminal, ring main unit, Switching Station；
The computer part includes network workstation, application server, front server, firewall router, shares
Printer；The network workstation include distribution dispatching workstations, distribution management work station, system maintenance work station, it is advanced should
Use work station；The application server include filesystem server, database server, SCADA servers, Web server,
Advanced application server；The SCADA servers acquire the distant side that the terminal device uploads, remote signalling, electric energy, number in real time
The data such as amount, definite value, while to each terminal part transmission data information and control command；
The communications portion includes MSTP (Multiple Spanning Tree Protocol) equipment, Ethernet switch, EPON (Ethernet passive lights
Network), one of them main MSTP (Multiple Spanning Tree Protocol) equipment is connect respectively with multiple from MSTP (Multiple Spanning Tree Protocol) equipment,
Main MSTP (Multiple Spanning Tree Protocol) equipment is connect by the Ethernet switch with the front server, institute
It states front server to connect with data/address bus by the firewall router, the network workstation, is shared application server
Printer is commonly connected to the firewall router on the data/address bus, carries out data exchange；
It is described from MSTP (Multiple Spanning Tree Protocol) equipment by matching described in the EPON (Ethernet passive optical network) connections
Electronic station, the electronic station of matching by optical fiber by connecting the terminal device, the communication with the communication line that optical splitter forms
Circuit is double chain, and the optical splitter is placed on the information access point of each terminal device, realizes the whole network self-healed protection.
The compensation part is by current transformer, voltage transformer, Switching Power Supply, signal conditioning circuit, capacitor switching
Control device, optical coupling device, master devices, data storage device and A/D convertor circuit are formed, and the master devices are defeated
The data gone out are uploaded to the data/address bus, the data are received by the distribution management work station, are stored, are analyzed and
Reason；
Wherein, the current transformer, voltage transformer access the three-phase circuit of the power distribution network, mutual by the voltage
Sensor and current transformer carry out real-time data acquisition to the voltage and current of power grid, are passed through by voltage transformer and current transformer
It crosses the signal conditioning circuit and voltage and current signal is converted into the low voltage and current signal of amplitude, input the AD conversion
Circuit completes sampling, and the master devices are by measuring time of two rising edges of the A/D convertor circuit output pulse signal
Interval to determine the signal period of the power distribution network, ensures sampling while property；The master devices through oversampling, analysis and
Optimization calculates, and generates switching control command, and the signal of I/O mouthfuls of outputs carries out optocoupler coupling device, operational order is sent to again
The capacitor switching control device carries out switching operation, and the data storage device storage calculates analysis program；The power supply
Output switching terminal connects the reset pin of the master devices, in the case of crashing in appearance, hand-reset.
The capacitor switching control device includes two capacitor groups, one group of fuse switch group, one group of arrester
Group, wherein, the three-phase circuit extraction of the power distribution network is respectively connected to the fuse switch in the fuse switch group, institute
It states two capacitor groups and the parallel connection of arrester group accesses the output terminal of the fuse switch group, wherein per group capacitor group packet
Three resistance, three capacitances and three high voltage connectors are included, the capacitor is using single star wire laying mode, the main controller
Part controls the high voltage connector to carry out switching, avoids introducing harmonic wave using power electronic equipment switching.
The advanced application work station includes database storage module, Controlling line loss module, wherein operating system module, institute
Dimension table and true table of the database storage module storage by expression line loss information are stated, wherein the dimension table includes time dimension
Table, management owner's dimension table, topological dimension table, loss cause dimension table, drop damage method dimension table, computational methods dimension table.
The data of the Controlling line loss module based on the database storage module carry out processing analysis, including file mould
Block, system setup module, equipment query module, line loss processing module and statistical analysis module,
The file module is by three user management submodule, Role Management submodule, rights management submodule submodules
Composition,
The user management submodule is used to add, delete, change system user and its essential information；
The Role Management submodule carries out color for being supplied to the corresponding permission of system manager, to system actor and looks into
It askes, increase, change and deletes.
The rights management submodule sets permission for being supplied to the corresponding permission of system manager, for each role,
The menu item that each role can browse through and be operated is managed collectively.
The system setup module is by dictionary management submodule, substation management submodule, line parameter circuit value submodule, transformation
Five submodule compositions of device parameter sub-module and line loss calculation setting submodule.
The dictionary management submodule safeguards the various basic parameters in this system.
The substation management submodule in global power distribution network all substations include title, referred to as, voltage class
Master data inside is safeguarded.
The line parameter circuit value submodule is used to complete the resistance parameter setting of bare conductor, cable, overhead line, in case electricity
Method and volumetric method calculate.
The transformer parameter submodule is used for the model for including storing transformer, the corresponding short circuit loss of capacity, zero load
Parameter including loss and rated current, in case being needed when calculating line loss.
The line loss calculation setting submodule is used to calculate the various settings of line loss, determines line loss calculation method, calculates electricity
The power factor and load curve characteristic coefficient used when amount method, volumetric method.
The equipment query module inquires chart submodule by comprehensive inquiry submodule, transformer inquiry submodule, transformer
Five block, tower bar inquiry submodule and tower bar inquiry chart submodule submodule compositions.
The comprehensive inquiry submodule is for completion for including power distribution network, substation, circuit, transformer, switch, capacitance
Parameter query including device.
The transformer inquiry submodule is used to complete the data query of all transformers in power distribution network.
Transformer inquiry chart submodule is for completing in power distribution network all transformers by the data statistics of substation
Chart.
The tower bar inquiry submodule is used to complete the data query of all shaft towers in power distribution network.
The tower bar inquiry chart submodule is used to complete the data statistics chart of all shaft towers in power distribution network.
The line loss processing module is by backup initialization submodule, table bottom typing submodule and circuit line loss calculation submodule
Three submodule compositions.
The backup initialization submodule is used to before monthly circuit Source of Gateway Meter carries out meter reading be initialized, and determines this month
Each Source of Gateway Meter it is minimum, update in database, and determine this month Source of Gateway Meter power supply volume calculation date.
The active and idle table bottom of the Source of Gateway Meter of the global all circuits of the table bottom typing submodule typing.
The circuit line loss calculation submodule calculates the line loss value of the global circuit at typing table bottom.
The statistical analysis module is mainly by user's electricity quantity inquiring submodule, line loss inquiry submodule, line loss analyzing submodule
Five block, line theory loss electricity report query submodule and line power factor moon sheet submodule submodule compositions.
User's electricity quantity inquiring submodule is had been introduced into user's electricity in system by circuit query, export.
Line loss inquiry submodule is by the reality of the global all circuits of circuit query, theory wire loss value and involved
All numerical value.The each circuit theory wire loss of each month calculated can be inquired, and analyzes composition and its institute of line loss
Accounting weight.
Line loss value curve graph or the list of a certain circuit each moon is drawn in line loss analyzing submodule inquiry, can use figure
Show to the formal intuition of table the variation that line loss is showed with the variation of season and time；Alternatively, inquiry drafting is each certain January
The line loss value curve graph of circuit or list show each circuit in the same quarter or same January with the formal intuition of chart
In line loss situation of change, carry out the comparison of line loss between each circuit.
The theoretical loss electricity of the global all circuits of line theory loss electricity report query submodule inquiry and
Involved all numerical value.
The line power factor moon sheet submodule inquires the power factor value of global all circuits of each moon and involved
And all numerical value.
Wherein, the line loss calculation process of the circuit line loss calculation submodule is as follows：
Step 1, calculating transformer is lost,
Step 1.1, the form factor of each transformer is calculated,
In formula, kiFor the form factor for i-th transformer, T is moon hours of operation, piFor continuing for i-th transformer
Load power, t are the time,
Step 1.2, the loss of electricity of each transformer is calculated,
In formula, WiFor the loss of electricity of i-th transformer, PkiFor the load loss of i-th transformer, Poi is i-th change
The no-load loss of depressor, IaviFor the monthly average electric current of i-th transformer, U is working voltage, SiFor the specified of i-th transformer
Capacity,
Step 1.3, calculating transformer total losses electricity,
Wherein, n is total number of units of transformer,
Step 2, line loss is calculated,
Step 2.1, the form factor on each sectionalized line is calculated,
In formula, kjFor the form factor of jth section circuit, pjFor the continuous loading power of jth section circuit,
Step 2.2, the monthly average electric current of jth section circuit is calculated,
Wherein, IavjFor the monthly average electric current of jth section circuit, mjBy the transformer number of units supplied under jth section circuit, WpjjFor
The moon active energy of jth j platform transformers, W under jth section circuitqjjFor the moon capacity of idle power of jth j platform transformers under jth section circuit,
WpiiFor the moon active energy of the i-th i platform transformers under i-th section of circuit, WqiiThe moon for the i-th i platform transformers under i-th section of circuit is idle
Electricity, WpFor moon active energy, WqFor moon capacity of idle power,
Step 2.3, the loss of electricity on each sectionalized line is calculated,
Wherein, WjFor the moon loss of electricity of jth section circuit, RjFor the resistance of jth section circuit, step 2.4, it is total to calculate circuit
Loss of electricity,
Wherein, WL is circuit total losses electricity,
Step 3, power distribution network total losses electricity is calculated,
W=WL+WT,
Wherein, W is power distribution network total losses electricity.
Embodiment described above only expresses one embodiment of the present invention, but can not therefore be interpreted as to this
The limitation of invention scope.It should be pointed out that for those of ordinary skill in the art, in the premise for not departing from present inventive concept
Under, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (10)
1. a kind of 10kV power distribution networks, it is characterised in that：The 10kV power distribution networks have a kind of 10kV low pressure of no-power compensation function
Intelligent distribution network system including terminal part, computer part, communications portion and compensates part,
The terminal part is used for through terminal device uploading device data, and the data include distant side, remote signalling, electric energy, number
Amount, definite value；
The computer part is used to acquire the data that the terminal device uploads in real time, while is sent to each terminal part
Data information and control command, and for circuit line loss calculation；The computer part includes network workstation, the network work
Making to stand, it is advanced using work station to include, and the advanced application work station includes Controlling line loss module, the Controlling line loss module packet
Include line loss processing module, the circuit line loss calculation submodule in line loss processing module is used for circuit line loss calculation；
The communication line of the communications portion is double chain, for connecting computer part and compensation part, carries out data friendship
It changes；
The compensation part is used to receive data, store, analyze and handle, and according to the circuit line loss calculation result
Capacitor switching operation is controlled, carries out reactive-load compensation；The compensation part is by current transformer, voltage transformer, signal condition
Circuit, capacitor switching control device, optical coupling device, master devices, data storage device and A/D convertor circuit are formed,
The capacitor switching control device is used to carry out switching operation.
2. 10kV power distribution networks according to claim 1, it is characterised in that：It is whole that the terminal part includes feeder automation
End, power transformer detecting terminal, ring main unit, Switching Station.
3. 10kV power distribution networks according to claim 1, it is characterised in that：The computer part further includes application service
Device, the application server include filesystem server, database server, SCADA servers, Web server, it is advanced should
Use server；The SCADA servers acquire the data that the terminal device uploads in real time, the data include distant side, remote signalling,
Electric energy, digital quantity, definite value, while to each terminal part transmission data information and control command.
The advanced application work station includes going back database storage module and operating system module, wherein the database purchase
Module stores the dimension table and true table by expression line loss information, wherein the dimension table includes time dimension table, management responsibility
People's dimension table, topological dimension table, loss cause dimension table, drop damage method dimension table, computational methods dimension table；The Controlling line loss
Data of the module based on the database storage module carry out processing analysis.
4. 10kV power distribution networks according to claim 1, it is characterised in that：The communications portion includes MSTP equipment, ether
Network switch, EPON, one of them main MSTP equipment are connect respectively with multiple from MSTP equipment,
The main MSTP equipment is connect by the Ethernet switch with the front server, and the computer further includes application
Server, front server, firewall router, printer sharing, the front server pass through the firewall router
It is connect with data/address bus, the network workstation, application server, printer sharing are connect jointly with the firewall router
On the data/address bus, data exchange is carried out；
It is described from MSTP equipment by the EPON connections Suo Shu match electronic station, it is described to pass through with electronic station by optical fiber and optical splitter
The communication line of composition connects the terminal device, and the communication line is double chain, and the optical splitter is placed in each described
On the information access point of terminal device, the whole network self-healed protection is realized.
5. 10kV power distribution networks according to claim 1, it is characterised in that：The data of the master devices output are uploaded to institute
State data/address bus, the network workstation further includes distribution management work station, by the distribution management work station to the data into
Row receives, storage, analyzes and handles；The current transformer, voltage transformer access the three-phase circuit of the power distribution network, pass through
The voltage transformer and current transformer carry out real-time data acquisition to the voltage and current of power grid, by voltage transformer and electricity
Voltage and current signal is converted into the low voltage and current signal of amplitude by current transformer by the signal conditioning circuit, input
The A/D convertor circuit completes sampling, on two by measuring the A/D convertor circuit output pulse signal of the master devices
The time interval on edge is risen, to determine the signal period of the power distribution network, ensures sampling while property；The master devices are by taking out
Sample, analysis and optimization calculate, and generate switching control command, and the signal of I/O mouthfuls of outputs carries out optocoupler coupling device again, and operation is ordered
Order sends the capacitor switching control device to and carries out switching operation, and the data storage device storage calculates analysis program；
The power switch output terminal connects the reset pin of the master devices, in the case of crashing in appearance, hand-reset；
The three-phase circuit extraction of the power distribution network is respectively connected to fuse switch in the fuse switch group, and described two
A capacitor group and the parallel connection of arrester group access the output terminal of the fuse switch group, wherein including three per group capacitor group
A resistance, three capacitances and three high voltage connectors, the capacitor is using single star wire laying mode, the master devices control
It makes the high voltage connector and carries out switching, avoid introducing harmonic wave using power electronic equipment switching.
6. 10kV power distribution networks according to claim 2, it is characterised in that：The Controlling line loss module further includes file mould
Block, the file module are made of three user management submodule, Role Management submodule, rights management submodule submodules；
The user management submodule is used for adding, deleting, changing system user information；
The Role Management submodule carries out system actor color inquiry, increases for being supplied to the corresponding permission of system manager
Add, change and delete；
The rights management submodule sets permission for being supplied to the corresponding permission of system manager, for each role, to each
The menu item that role can browse through and operate is managed collectively.
7. 10kV power distribution networks according to claim 2, it is characterised in that：
The Controlling line loss module further includes equipment query module, and the equipment query module is by comprehensive inquiry submodule, transformation
Device inquiry submodule, transformer inquiry chart submodule, tower bar inquiry submodule and tower bar inquiry chart five submodules of submodule
Block forms；
The comprehensive inquiry submodule is for completing for including power distribution network, substation, circuit, transformer, switch, capacitor exist
Interior parameter query；
The transformer inquiry submodule is used to complete the data query of all transformers in power distribution network；
The transformer inquiry chart submodule is used to complete the data query of all transformers in power distribution network；
The tower bar inquiry submodule is used to complete the data query of all shaft towers in power distribution network；
The tower bar inquiry chart submodule is used to complete the data statistics chart of all shaft towers in power distribution network.
8. 10kV power distribution networks according to claim 2, it is characterised in that：
The line loss processing module is by backup initialization submodule, table bottom typing submodule and circuit line loss calculation submodule three
Submodule forms；
The backup initialization submodule is used to before monthly circuit Source of Gateway Meter carries out meter reading be initialized, and determines that this month respectively closes
Oral thermometer it is minimum, update in database, and determine this month Source of Gateway Meter power supply volume calculation date；
The active and idle table bottom of the Source of Gateway Meter of the global all circuits of the table bottom typing submodule typing；
The circuit line loss calculation submodule calculates the line loss value of the global circuit at typing table bottom.
9. 10kV power distribution networks according to claim 2, it is characterised in that：
The Controlling line loss module further includes statistical analysis module, and the statistical analysis module is mainly by user's electricity quantity inquiring submodule
Block, line loss inquiry submodule, line loss analyzing submodule, line theory loss electricity report query submodule and line power factor
Five submodule compositions of moon sheet submodule；
User's electricity quantity inquiring submodule is had been introduced into user's electricity in system by circuit query, export；
Line loss inquiry submodule is by the reality of the global all circuits of circuit query, theory wire loss value and involved all
Numerical value can inquire each circuit theory wire loss of each month calculated, and analyze the composition of line loss and its institute's accounting
Weight；
Line loss value curve graph or the list of a certain circuit each moon is drawn in line loss analyzing submodule inquiry, can use chart
Show to formal intuition the variation that line loss is showed with the variation of season and time；Alternatively, each line in certain January is drawn in inquiry
The line loss value curve graph on road or list show each circuit in the same quarter or the same middle of the month with the formal intuition of chart
Line loss situation of change carries out the comparison of line loss between each circuit；
The theoretical loss electricity of the global all circuits of line theory loss electricity report query submodule inquiry and involved
And all numerical value；
The line power factor moon sheet submodule inquires the power factor value of global all circuits of each moon and involved
All numerical value.
10. 10kV power distribution networks according to claim 8, it is characterised in that：
Wherein, the line loss calculation process of the circuit line loss calculation submodule is as follows：
Step 1, calculating transformer is lost,
Step 1.1, the form factor of each transformer is calculated,
Step 1.2, the loss of electricity of each transformer is calculated,
Step 1.3, calculating transformer total losses electricity,
Step 2, line loss is calculated,
Step 2.1, the form factor on each sectionalized line is calculated,
Step 2.2, the monthly average electric current of jth section circuit is calculated,
Step 2.3, the loss of electricity on each sectionalized line is calculated,
Step 3, power distribution network total losses electricity is calculated.
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| CN201810024054.XA CN108254642B (en) | 2016-01-31 | 2016-01-31 | 10kV distribution network |
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| CN106559436A (en) * | 2017-01-20 | 2017-04-05 | 北京立思辰新技术有限公司 | A kind of safety monitoring management method for being applied to power system transformer |
| CN110705925B (en) * | 2019-11-18 | 2024-04-16 | 南京晓庄学院 | Energy interconnection planning system for accessing power distribution network based on NSL0 reconstruction algorithm |
| CN111856202B (en) * | 2020-06-05 | 2021-03-30 | 广东省永固电力科技有限公司 | Low-voltage line detection terminal for realizing automatic topology identification based on XML (extensive markup language) file |
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| CN105634132B (en) | 2018-02-02 |
| CN108254642B (en) | 2021-08-31 |
| CN105634132A (en) | 2016-06-01 |
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