CN105553807A - 10kV low voltage smart power distribution network system with looped network communication structure - Google Patents
10kV low voltage smart power distribution network system with looped network communication structure Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H04L12/437—Ring fault isolation or reconfiguration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention relates to a 10kV low voltage smart power distribution network system with a looped network communication structure, comprising a terminal part, a computer part and a communication part. The terminal part comprises a feeder automation terminal, a power distribution transformer detection terminal, a looped network cabinet and an opening and closing station. The computer part comprises a network work station, an application server, a preposition server, a firewall router and a shared printer; the network work station comprises a power distribution scheduling work station, a power distribution managing work station, a system maintenance work station and an advanced application work station; the application server comprises a network system server, a database server, an SCADA server, a Web server and an advanced application server; the SCADA server collects data such as remote sides, remote signals, electric energy, digital quantity, fixed values in real time and sends data information and control commands to every terminal part at the same time.
Description
Technical field
The application relates to a kind of intelligent distribution network, especially a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure.
Background technology
10kV power distribution network as sending out, transmission system connects the important ring of user side, being positioned at the terminal link of electric power system, is the important composition part of mesolow distribution, and mainly serving as be the function of user's conveying and distribution electric energy.Due to improving constantly of China's economic level, the continuous expansion of need for electricity, thus proposes more and more higher requirement 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 contains following deficiency in conventional electrical distribution net: communication node enormous amount, wide variety, skewness, system organization difficulty; Communication system is distributed in open air more, and the test of harsh weather needs higher guaranteed reliability; Communication bandwidth requires can not be guaranteed, and due to plurality of communication systems and the multilayer integration mode of employing, different business stream requires that bandwidth sum real-time is different.
Meanwhile, line loss rate is the Main Economic technical indicator of the plan of concentrated expression power network planning, production run and management level.How accurately, reasonably automatically calculate power distribution network theoretical loss electricity, the ratio simultaneously calculated shared by all kinds of loss makes current problems faced.
Summary of the invention
In order to solve in prior art in power distribution network communication system Problems existing and how rationally estimate line loss rate thus the operating efficiency Dare problem of assessment power distribution network, the present invention proposes a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure.
Technical scheme of the present invention is: a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure, comprises terminal part, computer part, communications portion,
Described terminal part comprises feed line automatization terminal, power transformer detecting terminal, ring main unit, Switching Station;
Described computer department subpackage includes network work station, application server, front server, firewall router, printer sharing,
Described network workstation comprises distribution dispatching workstations, distribution management work station, system maintenance work station, senior application work station;
Described application server comprises filesystem server, database server, SCADA server, Web server, senior application server;
The data such as distant side, remote signalling, electric energy, digital quantity, definite value that described in described SCADA server Real-time Collection, terminal equipment is uploaded, send data message and control command to each described terminal part simultaneously;
Described communications portion adopts MSTP/PIN ring network structure, it comprises MSTP equipment, Ethernet switch, EPON, MSTP equipment forms MSTP by fiber direct connection and transmits ring, one of them MSTP equipment is connected with described front server by described Ethernet switch, described front server is connected with data/address bus by described firewall router, described network workstation, application server, printer sharing and described firewall router are connected on described data/address bus jointly, carry out exchanges data
MSTP equipment described in all the other connects described distribution substation by described EPON; described distribution substation is connected described terminal equipment by the communication line be made up of optical fiber and optical splitter; described communication line is double chain; described optical splitter is placed on the information access point of each described terminal equipment, realizes the whole network self-healed protection.
Described senior application work station comprises database storage module, Controlling line loss module, operating system module, wherein said database storage module stores by dimension table and the fact table of expressing line loss information, and wherein said dimension table comprises time dimension table, management owner's dimension table, topological dimension table, loss cause dimension table, falls damage method dimension table, computational methods dimension table.
Described Controlling line loss module carries out Treatment Analysis based on the data of described database storage module, and it comprises file module, system setup module, equipment query module, line loss processing module and statistical analysis module.
Beneficial effect of the present invention:
(1) on the basis of stable data acquisition means, for whole power supply enterprise provides accurately complete Data support, for the decision-making of business decision layer provides strong data basis;
(2) by information system management, simplify the work of Controlling line loss person, promote its operating efficiency;
(3) finding the problem produced in line loss calculation and analysis in time rapidly, the concrete link finding line loss to produce and reason, providing scientific suggestion for reducing line loss;
(4) effectively reduce communication node, reduce system redundancy;
(5) communication reliability is strong.
Accompanying drawing explanation
Fig. 1 is System's composition block diagram of the present invention;
Fig. 2 is Controlling line loss module composition schematic diagram of the present invention;
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
Inventive embodiment is with reference to shown in Fig. 1-2.
There is a 10kV low-voltage intelligent distribution network system for looped network communication structure, comprise terminal part, computer part, communications portion,
Described terminal part comprises feed line automatization terminal, power transformer detecting terminal, ring main unit, Switching Station;
Described computer department subpackage includes network work station, application server, front server, firewall router, printer sharing,
Described network workstation comprises distribution dispatching workstations, distribution management work station, system maintenance work station, senior application work station;
Described application server comprises filesystem server, database server, SCADA server, Web server, senior application server;
The data such as distant side, remote signalling, electric energy, digital quantity, definite value that described in described SCADA server Real-time Collection, terminal equipment is uploaded, send data message and control command to each described terminal part simultaneously;
Described communications portion adopts MSTP/PIN ring network structure, it comprises MSTP (Multiple Spanning Tree Protocol) equipment, Ethernet switch, EPON (Ethernet passive optical network), MSTP (Multiple Spanning Tree Protocol) equipment forms MSTP by fiber direct connection and transmits ring, one of them MSTP (Multiple Spanning Tree Protocol) equipment is connected with described front server by described Ethernet switch, described front server is connected with data/address bus by described firewall router, described network workstation, application server, printer sharing and described firewall router are connected on described data/address bus jointly, carry out exchanges data,
MSTP described in all the other (Multiple Spanning Tree Protocol) equipment connects described distribution substation by described EPON (Ethernet passive optical network); described distribution substation is connected described terminal equipment by the communication line be made up of optical fiber and optical splitter; described communication line is double chain; described optical splitter is placed on the information access point of each described terminal equipment, realizes the whole network self-healed protection.
Described senior application work station comprises database storage module, Controlling line loss module, operating system module, wherein said database storage module stores by dimension table and the fact table of expressing line loss information, and wherein said dimension table comprises time dimension table, management owner's dimension table, topological dimension table, loss cause dimension table, falls damage method dimension table, computational methods dimension table.
Described Controlling line loss module carries out Treatment Analysis based on the data of described database storage module, and it comprises file module, system setup module, equipment query module, line loss processing module and statistical analysis module,
Described file module is made up of user management submodule, Role Management submodule, rights management submodule three submodules,
Described user management submodule is used for interpolation, deletes, revises system user and essential information thereof;
Described Role Management submodule is used for being supplied to the corresponding authority of system manager, carries out look inquiry, increase, amendment and deletion to system actor.
Described rights management submodule is used for being supplied to the corresponding authority of system manager, for each role arranges authority, carries out unified management to the menu item that each role can browse and operate.
Described system setup module arranges submodule five submodules by dictionary management submodule, substation management submodule, line parameter circuit value submodule, transformer parameter submodule and line loss calculation and forms.
Described dictionary management submodule is safeguarded the various basic parameters in native system.
Described substation management submodule comprises title to transformer stations all in overall power distribution network, and abbreviation, electric pressure are safeguarded in interior master data.
Described line parameter circuit value submodule, for completing the resistance parameter setting of plain conductor, cable, overhead wire, calculates in order to coulometry and volumetric method.
Described transformer parameter submodule stores the model of transformer, the parameter of short circuit loss, no-load loss and rated current that capacity is corresponding for comprising, and needs during in order to calculating line loss.
Described line loss calculation arranges submodule for calculating the various optimum configurations of line loss, determines line loss calculation method, the power factor used when calculating coulometry, volumetric method and load curve characteristic coefficient.
Described equipment query module inquires about submodule by comprehensive inquiry submodule, transformer, chart submodule inquired about by transformer, submodule inquired about by tower bar and tower bar inquiry chart submodule five submodules form.
Described comprehensive inquiry submodule is for completing the parameter query for comprising power distribution network, transformer station, circuit, transformer, switch, capacitor.
Described transformer inquiry submodule is for completing the data query of all transformers in power distribution network.
Described transformer inquiry chart submodule is for completing in power distribution network all transformers by the data statistics chart of transformer station.
Described tower bar inquiry submodule is for completing the data query of all shaft towers in power distribution network.
Described tower bar inquiry chart submodule is for completing the data statistics chart of all shaft towers in power distribution network.
Described line loss processing module is made up of backup initialization submodule, table end typing submodule and circuit line loss calculation submodule three submodules.
Described backup initialization submodule is used for carrying out initialization in monthly circuit Source of Gateway Meter before checking meter, and determines the minimum of this month each Source of Gateway Meter, is updated in database, and determine the Source of Gateway Meter amount of power supply calculation date of this month.
At the bottom of the meritorious and idle table of the Source of Gateway Meter of all circuits of the typing submodule typing overall situation at the bottom of described table.
Described circuit line loss calculation submodule calculates the line loss value of the circuit of the overall situation at the bottom of typing table.
Described statistical analysis module is primarily of user's electricity quantity inquiring submodule, line loss inquiry submodule, line loss analyzing submodule, line theory loss electricity report query submodule and line power factor moon form submodule five submodule compositions.
Described user's electricity quantity inquiring submodule is by circuit query, user's electricity of deriving in import system.
Described line loss inquiry submodule press the reality of the overall all circuits of circuit query, theory wire loss value and involved all numerical value.The theory wire loss of each each month of circuit calculated can be inquired about, and analyze composition and the proportion thereof of line loss.
Line loss value curve chart or the list of a certain bar circuit each moon are drawn in the inquiry of described line loss analyzing submodule, can with the formal intuition of chart show the change that line loss presents with the change of season and time; Or line loss value curve chart or the list of each bar circuit in certain January are drawn in inquiry, with the formal intuition of chart show each bar circuit in the same quarter or the line loss situation of change in the same middle of the month, carry out the comparison of line loss between each circuit.
The theory loss electricity of the overall all circuits of described line theory loss electricity report query submodule inquiry and involved all numerical value.
The power factor value of all circuits of the described line power factor moon form submodule inquiry overall situation of each moon and involved all numerical value.
Wherein, the line loss calculation process of described circuit line loss calculation submodule is as follows:
Step 1, calculating transformer loss,
Step 1.1, calculates the form factor of each transformer,
In formula, k
ifor the form factor for i-th transformer, T is moon hours of operation, p
ibe the continuous loading power of i-th transformer, t is the time,
Step 1.2, calculates the loss of electricity of each transformer,
In formula, W
ibe the loss of electricity of i-th transformer, P
kibe the load loss of i-th transformer, P
oibe the no-load loss of i-th transformer, I
avibe the monthly average electric current of i-th transformer, U is working voltage, S
iit is the rated capacity of i-th transformer.
Step 1.3, calculating transformer total losses electricity
Wherein, n is total number of units of transformer,
Step 2, computational scheme loss
Step 2.1, calculates the form factor on each sectionalized line,
In formula, k
jfor the form factor of jth section circuit, p
jfor the continuous loading power of jth section circuit,
Step 2.2, calculates the monthly average electric current of jth section circuit,
Wherein, I
avjfor the monthly average electric current of jth section circuit, m
jby under jth section circuit the transformer number of units of confession, W
pjjfor the moon active energy of jth j platform transformer under jth section circuit, W
qjjfor the moon capacity of idle power of jth j platform transformer under jth section circuit, W
piibe the moon active energy of the i-th i platform transformer under i-th section of circuit, W
qiibe the moon capacity of idle power of the i-th i platform transformer under i-th section of circuit, W
pfor moon active energy, W
qfor moon capacity of idle power,
Step 2.3, calculates the loss of electricity on each sectionalized line,
Wherein, W
jfor the moon loss of electricity of jth section circuit, R
jfor the resistance of jth section circuit.
Step 2.4, computational scheme total losses electricity
Step 3, calculates power distribution network total losses electricity
W＝W
L+W
T。
The above execution mode only have expressed one embodiment of the present invention, but therefore can not be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. there is a 10kV low-voltage intelligent distribution network system for looped network communication structure, comprise terminal part, computer part, communications portion, it is characterized in that:
Described terminal part comprises feed line automatization terminal, power transformer detecting terminal, ring main unit, Switching Station;
Described computer department subpackage includes network work station, application server, front server, firewall router, printer sharing; Described network workstation comprises distribution dispatching workstations, distribution management work station, system maintenance work station, senior application work station; Described application server comprises filesystem server, database server, SCADA server, Web server, senior application server; The data such as distant side, remote signalling, electric energy, digital quantity, definite value that described in described SCADA server Real-time Collection, terminal equipment is uploaded, send data message and control command to each described terminal part simultaneously;
Described communications portion adopts MSTP/PIN ring network structure, it comprises MSTP equipment, Ethernet switch, EPON, MSTP equipment forms MSTP by fiber direct connection and transmits ring, one of them MSTP equipment is connected with described front server by described Ethernet switch, described front server is connected with data/address bus by described firewall router, described network workstation, application server, printer sharing and described firewall router are connected on described data/address bus jointly, carry out exchanges data, MSTP equipment described in all the other connects described distribution substation by described EPON, described distribution substation is connected described terminal equipment by the communication line be made up of optical fiber and optical splitter, described communication line is double chain, described optical splitter is placed on the information access point of each described terminal equipment, realize the whole network self-healed protection, described senior application work station comprises database storage module, Controlling line loss module, operating system module, wherein said database storage module stores by dimension table and the fact table of expressing line loss information, and wherein said dimension table comprises time dimension table, management owner's dimension table, topological dimension table, loss cause dimension table, falls damage method dimension table, computational methods dimension table, described Controlling line loss module carries out Treatment Analysis based on the data of described database storage module, and it comprises file module, system setup module, equipment query module, line loss processing module and statistical analysis module.
2. a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure according to claim 1, is characterized in that: described file module is made up of user management submodule, Role Management submodule, rights management submodule three submodules;
Described user management submodule is used for interpolation, deletes, revises system user and essential information thereof;
Described Role Management submodule is used for being supplied to the corresponding authority of system manager, carries out look inquiry, increase, amendment and deletion to system actor;
Described rights management submodule is used for being supplied to the corresponding authority of system manager, for each role arranges authority, carries out unified management to the menu item that each role can browse and operate.
3. a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure according to claim 1, is characterized in that:
Described system setup module arranges submodule five submodules by dictionary management submodule, substation management submodule, line parameter circuit value submodule, transformer parameter submodule and line loss calculation and forms;
Described dictionary management submodule is safeguarded the various basic parameters in native system;
Described substation management submodule comprises title to transformer stations all in overall power distribution network, and abbreviation, electric pressure are safeguarded in interior master data;
Described line parameter circuit value submodule, for completing the resistance parameter setting of plain conductor, cable, overhead wire, calculates in order to coulometry and volumetric method;
Described transformer parameter submodule stores the model of transformer, the parameter of short circuit loss, no-load loss and rated current that capacity is corresponding for comprising, and needs during in order to calculating line loss;
Described line loss calculation arranges submodule for calculating the various optimum configurations of line loss, determines line loss calculation method, the power factor used when calculating coulometry, volumetric method and load curve characteristic coefficient.
4. a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure according to claim 1, is characterized in that:
Described equipment query module inquires about submodule by comprehensive inquiry submodule, transformer, chart submodule inquired about by transformer, submodule inquired about by tower bar and tower bar inquiry chart submodule five submodules form;
Described comprehensive inquiry submodule is for completing the parameter query for comprising power distribution network, transformer station, circuit, transformer, switch, capacitor;
Described transformer inquiry submodule is for completing the data query of all transformers in power distribution network;
Described transformer inquiry chart submodule is for completing in power distribution network all transformers by the data statistics chart of transformer station;
Described tower bar inquiry submodule is for completing the data query of all shaft towers in power distribution network;
Described tower bar inquiry chart submodule is for completing the data statistics chart of all shaft towers in power distribution network.
5. a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure according to claim 1, is characterized in that:
Described line loss processing module is made up of backup initialization submodule, table end typing submodule and circuit line loss calculation submodule three submodules;
Described backup initialization submodule is used for carrying out initialization in monthly circuit Source of Gateway Meter before checking meter, and determines the minimum of this month each Source of Gateway Meter, is updated in database, and determine the Source of Gateway Meter amount of power supply calculation date of this month;
At the bottom of the meritorious and idle table of the Source of Gateway Meter of all circuits of the typing submodule typing overall situation at the bottom of described table;
Described circuit line loss calculation submodule calculates the line loss value of the circuit of the overall situation at the bottom of typing table.
6. a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure according to claim 1, is characterized in that:
Described statistical analysis module is primarily of user's electricity quantity inquiring submodule, line loss inquiry submodule, line loss analyzing submodule, line theory loss electricity report query submodule and line power factor moon form submodule five submodule compositions;
Described user's electricity quantity inquiring submodule is by circuit query, user's electricity of deriving in import system;
Described line loss inquiry submodule press the reality of the overall all circuits of circuit query, theory wire loss value and involved all numerical value.The theory wire loss of each each month of circuit calculated can be inquired about, and analyze composition and the proportion thereof of line loss;
Line loss value curve chart or the list of a certain bar circuit each moon are drawn in the inquiry of described line loss analyzing submodule, can with the formal intuition of chart show the change that line loss presents with the change of season and time; Or line loss value curve chart or the list of each bar circuit in certain January are drawn in inquiry, with the formal intuition of chart show each bar circuit in the same quarter or the line loss situation of change in the same middle of the month, carry out the comparison of line loss between each circuit;
The theory loss electricity of the overall all circuits of described line theory loss electricity report query submodule inquiry and involved all numerical value;
The power factor value of all circuits of the described line power factor moon form submodule inquiry overall situation of each moon and involved all numerical value.
7. a kind of 10kV low-voltage intelligent distribution network system with looped network communication structure according to claim 5, is characterized in that:
Wherein, the line loss calculation process of described circuit line loss calculation submodule is as follows:
Step 1, calculating transformer loss,
Step 1.1, calculates the form factor of each transformer,
In formula, k
ifor the form factor for i-th transformer, T is moon hours of operation, p
ibe the continuous loading power of i-th transformer, t is the time,
Step 1.2, calculates the loss of electricity of each transformer,
In formula, W
ibe the loss of electricity of i-th transformer, P
kibe the load loss of i-th transformer, P
oibe the no-load loss of i-th transformer, I
avibe the monthly average electric current of i-th transformer, U is working voltage, S
ibe the rated capacity of i-th transformer,
Step 1.3, calculating transformer total losses electricity,
Wherein, n is total number of units of transformer,
Step 2, computational scheme loss,
Step 2.1, calculates the form factor on each sectionalized line,
In formula, k
jfor the form factor of jth section circuit, p
jfor the continuous loading power of jth section circuit,
Step 2.2, calculates the monthly average electric current of jth section circuit,
Wherein, I
avjfor the monthly average electric current of jth section circuit, m
jby under jth section circuit the transformer number of units of confession, W
pjjfor the moon active energy of jth j platform transformer under jth section circuit, W
qjjfor the moon capacity of idle power of jth j platform transformer under jth section circuit, W
piibe the moon active energy of the i-th i platform transformer under i-th section of circuit, W
qiibe the moon capacity of idle power of the i-th i platform transformer under i-th section of circuit, W
pfor moon active energy, W
qfor moon capacity of idle power,
Step 2.3, calculates the loss of electricity on each sectionalized line,
Wherein, W
jfor the moon loss of electricity of jth section circuit, R
jfor the resistance of jth section circuit,
Step 2.4, computational scheme total losses electricity,
Wherein, W
lfor circuit total losses electricity,
Step 3, calculates power distribution network total losses electricity,
W＝W
L+W
T，
Wherein, W is power distribution network total losses electricity.
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Cited By (8)
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| CN106961107A (en) * | 2017-03-23 | 2017-07-18 | 国网湖北省电力公司十堰供电公司 | Transformer networking control method and device |
| CN107807281A (en) * | 2017-10-13 | 2018-03-16 | 国网河北能源技术服务有限公司 | A kind of evaluation method of network transformer loss |
| CN108134393A (en) * | 2018-01-29 | 2018-06-08 | 华中科技大学 | A kind of Regional Energy interconnection distribution network system based on electric energy route technology |
| CN108242818A (en) * | 2016-12-26 | 2018-07-03 | 北京天诚同创电气有限公司 | The control system of energy-accumulating power station and the communication means of control system |
| CN109412862A (en) * | 2018-11-20 | 2019-03-01 | 新智能源系统控制有限责任公司 | A kind of multinode collecting method of looped network type SCADA system |
| CN109495365A (en) * | 2018-11-20 | 2019-03-19 | 新智能源系统控制有限责任公司 | A kind of monocycle net type SCADA system |
| CN109560962A (en) * | 2018-11-20 | 2019-04-02 | 新智能源系统控制有限责任公司 | A kind of multinode collecting method of monocycle net type SCADA system |
| CN115225425A (en) * | 2022-09-19 | 2022-10-21 | 北京天辰合创科技有限公司 | Data acquisition method and system for dynamic pluggable ring network architecture |
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| CN108134393B (en) * | 2018-01-29 | 2020-12-18 | 华中科技大学 | Regional energy interconnection power distribution network system based on electric energy routing technology |
| CN109412862A (en) * | 2018-11-20 | 2019-03-01 | 新智能源系统控制有限责任公司 | A kind of multinode collecting method of looped network type SCADA system |
| CN109495365A (en) * | 2018-11-20 | 2019-03-19 | 新智能源系统控制有限责任公司 | A kind of monocycle net type SCADA system |
| CN109560962A (en) * | 2018-11-20 | 2019-04-02 | 新智能源系统控制有限责任公司 | A kind of multinode collecting method of monocycle net type SCADA system |
| CN115225425A (en) * | 2022-09-19 | 2022-10-21 | 北京天辰合创科技有限公司 | Data acquisition method and system for dynamic pluggable ring network architecture |
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