CN109782060A - A kind of lean line loss analysis system - Google Patents
A kind of lean line loss analysis system Download PDFInfo
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- CN109782060A CN109782060A CN201811590507.1A CN201811590507A CN109782060A CN 109782060 A CN109782060 A CN 109782060A CN 201811590507 A CN201811590507 A CN 201811590507A CN 109782060 A CN109782060 A CN 109782060A
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Abstract
The present invention discloses a kind of lean line loss analysis system, including intelligent line loss analyzing host module, the multiple intelligent line loss monitoring modulars being separately positioned on each branched line at part of nodes and the multiple intelligent metering breaker modules being separately positioned on each branched line at part of nodes, each intelligence line loss monitoring modular, intelligent metering breaker module is connect with intelligent line loss analyzing host module respectively, the continuous data of route locating for intelligent line loss monitoring modular real-time monitoring, the continuous data of route locating for the switch and real-time monitoring of the locating route of intelligent metering breaker module control, intelligent line loss analyzing host module acquires each intelligent line loss monitoring modular in real time respectively, the continuous data of intelligent metering breaker module carries out line loss analyzing.The present invention has many advantages, such as structure line loss analyzing that is simple, at low cost, can be realized platform area lean, and applied widely, using flexible.
Description
Technical field
The present invention relates to low-voltage network more particularly to a kind of lean line loss analysis systems.
Background technique
Low-voltage distribution transformer platform district line loss is to stop institute to user's electric energy meter from distribution transformer output in electric energy supply process
The electric energy loss and loss of generation can be reflected confession, the pin equilibrium relation of power distribution network by line loss, and generation platform area line loss mainly has following
Reason:
1, in terms of statistical management: the basic data such as platform area is not perfect, so that line loss assessment lacks authenticity, including CCS system
Be not inconsistent with scene, public shift case do not have typing CCS system, have the problems such as family is arbitrarily migrated without table, meter and generalized information system with
Scene is not inconsistent, and generalized information system data failed timely updates by live alteration in time, causes CCS and generalized information system not to be inconsistent etc. all kinds of
Situation.
2, change family relationship mistake: the private of the left over by history in platform area as usual draws the random phenomenon that connects to lead to power supply environment complexity and increase newly
Public affairs become electronization and transfer not in time, at present when newly-increased distribution transformer, often will appear live practical in electricity consumption, but system
Do not have also typing user information to carry out meter reading, leading to the power-consuming amount of total score meter, the same period, generation platform area line loss per unit be not abnormal.
3, metering device failure and user's stealing: such is also the principal element for influencing low-voltage platform area line loss, the master of stealing
Method is wanted there are two kinds of the accuracy of measuring around more metering device stealing and destruction metering device.
It is directed to the determination of platform area line loss at present, usually by the way of continuous data statistics, i.e., system is acquired by electricity consumption
System realizes the timing meter reading of platform area summary table and each family table, then is compared by each meter reading data and platform area summary table data, and determination is deposited
Line loss.But such mode only can be rough the entire platform area of determination line loss, can not determine the specific location of line loss, and
Since platform area number of users is numerous and the complex circuit of low-voltage platform area, in terms of above-mentioned statistical management, become family relationship mistake and meter
The presence for the problems such as measuring plant failure and user's stealing, will affect the validity of platform area line loss assessment, while once find line loss
Abnormal platform area, malfunction elimination is extremely difficult, cannot position stealing investigation area, and by appearance substantially can not quick discrimination, then
In addition stealing electricity phenomenon is usually more dispersed, the investigation of fault point is more difficult.
Since usual existing platform area is large number of, platform distinguishes that branch line is complicated, each area, branch node line loss situation
Possible difference, it may be only that progress event is just no longer needed to after restoring normal within lasting a period of time extremely that line loss, which occurs, for some
Barrier investigation, does not need long-term monitoring, and some then may be due to there is serious artificial lack of standardization caused repeatedly with electrical phenomena
There is abnormal line loss situation, long term monitoring line loss state is needed, in order to realize the line loss state of each branch node in platform area
Monitoring, traditional approach are that multiple dedicated line loss monitoring devices are fixedly mounted in each area to carry out point by point in conjunction with artificial
Investigation, not only realization is complicated, at high cost, needs largely to install a variety of ancillary equipments, usually all set on trunk, each branched line
The equipment such as a large amount of switch, feeder pillar are equipped with, the equipment such as numerous switch are simutaneously arranged with a large amount of auxiliary line loss monitoring device,
Meeting is so that complex, numerous especially for branched line, topological structure the is complicated platform of whole system structure composition, wiring
Area, simultaneously for platform area, the branch node for only needing temporarily to monitor analysis, device can be in idle state after restoring normal,
So that utilization rate of equipment and installations is not high, and it also will increase fault point.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Kind of structure is simple, lean line loss analysis system at low cost, applied widely and using flexible, can be realized platform area lean
Line loss analyzing, and can satisfy the line loss analyzing demand in not area on the same stage.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of lean line loss analysis system, including intelligent line loss analyzing host module, it is separately positioned on each branched line top
Multiple intelligent line loss monitoring modulars at partial node and the multiple intelligence being separately positioned on each branched line at part of nodes
Measure breaker module, each intelligent line loss monitoring modular, intelligent metering breaker module respectively with the intelligent line loss
Analyze host module connection, the continuous data of route locating for the intelligence line loss monitoring modular real-time monitoring, the intelligent metering
The continuous data of route locating for the switch and real-time monitoring of the locating route of breaker module control, the intelligence line loss analyzing master
Machine module acquires each intelligent line loss monitoring modular in real time respectively, the continuous data of intelligent metering breaker module carries out line loss
Analysis.
As a further improvement of the present invention: the intelligence line loss monitoring modular is integrated with for monitoring and metering data
One metering units, for the automatic copy reading unit of the continuous data of each family table in real-time copy reading user counter box and for obtaining
Take identify locating platform area, branch's level topological identification signal the first topological recognition unit.
As a further improvement of the present invention: the intelligence line loss monitoring modular further includes single with first metering respectively
First, automatic copy reading unit and the line loss analyzing unit of the first topological recognition unit connection, the number for being exported according to each unit
According to line loss analyzing is carried out, the line loss of respective branches route or user's counter box is obtained.
As a further improvement of the present invention: the intelligent metering breaker module is integrated with for executing switch protection
Switch protection unit is opened up for the second metering units of monitoring and metering data, for obtaining the second of the topological identification signal
Flutter recognition unit.
As a further improvement of the present invention: being set respectively at the input node of distribution transformer and each output node
Set the intelligent line loss monitoring modular or the intelligent metering breaker module, every low pressure branched line input node with
And the intelligent line loss monitoring modular or the intelligent metering breaker module are respectively set at each output node, and every
The intelligent line loss monitoring modular or intelligent metering open circuit are respectively set at the input node of a user's counter box
Device module.
As a further improvement of the present invention: the intelligence line loss analyzing host module includes data acquisition unit, topology
Recognition unit and platform area line loss analyzing unit, the data acquisition unit, topological recognition unit respectively with described area's line loss
Analytical unit connection, the summary table data in data acquisition unit difference picking platform area, each intelligent line loss monitoring modular, intelligence
Can measure the continuous data that breaker module monitors, the topology recognition unit according to each intelligent line loss monitoring modular,
The topological identification signal that intelligent metering breaker module obtains, which determines, obtains power distribution network topological structure, described area's line loss point
Analysis unit is compared according to the data that the power distribution network topological structure acquires the data acquisition unit, is obtained each in platform area
The line loss analyzing result of level exports.
As a further improvement of the present invention: described area's line loss analyzing unit includes for calculating distribution transformer side line
The platform change layer grade line loss analyzing subelement of damage, for calculate the node level line loss analyzing subelement of branch node level line loss with
And the electricity box level line loss analyzing subelement for calculating electricity box level line loss, described change layer grade line loss analyzing subelement obtain
Platform area summary table data, the intelligent line loss monitoring modular of distribution transformer outlet side or the intelligent metering breaker module
Monitoring data are compared, and the line loss for obtaining distribution transformer inlet wire and outlet exports, and node level line loss analyzing is single
Member obtains the monitoring number of the intelligent line loss monitoring modular or the intelligent metering breaker module on each branched line node
According to, and the monitoring data got are compared according to the power distribution network topological structure, obtain the line loss on each branched line
Output, the electricity box level line loss analyzing subelement obtain the intelligent line loss monitoring modular or described of user's counter box side
The data of each family table are compared in the monitoring data and user's counter box of intelligent metering breaker module, obtain user's meter
The line loss of scale case exports.
As a further improvement of the present invention: the intelligence line loss analyzing host module further includes and described area's line loss point
The failure location unit and/or condition monitoring unit of unit connection are analysed, the failure location unit receives described area's line loss point
The line loss analyzing of unit output is analysed as a result, the condition monitoring unit judges whether there is failure according to the line loss analyzing result
And when determining there are fault point when failure, for obtaining described area's line loss analyzing unit output in designated time period
Line loss analyzing result variation tendency, the line status of each each branched line in area is judged according to the variation tendency.
As a further improvement of the present invention: being additionally provided with Intelligent reclosing electric leakage at the node needed for each branched line and protect
Breaker module is protected, the Intelligent reclosing earth leakage circuit breaker module is integrally disposed to be had for executing earth leakage protective and switch
The reclosing residual current protective unit of divide-shut brake identifies platform area topology for the third metering units of electrical energy measurement and for obtaining
The third topology recognition unit of the topological identification signal of structure.
As a further improvement of the present invention: further including the monitoring end being connect with the intelligent line loss analyzing host module
End, the monitor terminal receive the line loss analyzing of the intelligent line loss analyzing host module output as a result, and sending control and referring to
It enables to the intelligent line loss analyzing host module.
Compared with the prior art, the advantages of the present invention are as follows:
1, the present invention comprehensively considers not the different line loss analyzing demands in area on the same stage, by needed for the part on each branched line in platform area
Intelligent line loss monitoring modular is added at node, the continuous data of the branch node as locating for intelligent line loss monitoring modular real-time monitoring,
Intelligent metering breaker module is set at node needed for part on each branched line in platform area simultaneously, by intelligent metering breaker mould
Block replaces the switch on the area Yuan Tai route, while the continuous data of the route as locating for intelligent metering breaker module real-time monitoring,
Sustainable monitoring line anomalies node, take precautions against artificial electrical phenomena lack of standardization, it can be achieved that detachably with the platform area of fixed synthesis
Line loss analyzing mode can be flexibly applied to not area on the same stage, meet not the line loss analyzing demand in area on the same stage.
2, the present invention is by the monitoring data of comprehensive each intelligent line loss monitoring modular, intelligent metering breaker module, by matching
Power path, level fining calculate each level, the line loss of node, and the lean line loss analyzing in platform area may be implemented, by line loss essence
Each branch node in the area Que Zhitai, so that can fast and accurately position specific fault zone when being abnormal line loss.
3, the present invention is restored just by the way that intelligent line loss monitoring modular is arranged at the branch node needed for platform area in line losses indices
After normal state, each intelligent line loss monitoring modular of dismountable corresponding position, can be flexible to be reused for next area
In due course line loss analyzing at position needed for realizing platform area can greatly improve the utilization rate of system, reduce cost of implementation.
4, by the way that intelligent metering breaker module is arranged at the branch node needed for platform area, can be used as switch makes the present invention
With being provided simultaneously with metering, topological identification function, only needing to install intelligent metering breaker module on each branched line can be same
Shi Shixian switch, metering and topological identification function, without other ancillary equipments such as additional installation switch, measuring equipment, Ke Yiji
The structure complexity and cost of implementation of big reduction whole system, while guaranteeing the reliable and stable operation of system.
5, Intelligent reclosing earth leakage circuit breaker module is set at the further node needed for each branched line of the invention,
Reclosing leakage can be collected by a set of reclosing earth leakage circuit breaker and protect open circuit, metering, platform area identification function one, so that only
A set of above-mentioned Intelligent reclosing earth leakage circuit breaker need to be configured, can be realized reclosing leakage protect breaker and meanwhile realize metering,
Platform area identification function can be further simplified whole system without the ancillary equipment of additional configuration metering, the identification of platform area again
Structure, the integrated level for improving system, cost of implementation needed for reducing.
6, the present invention is further by the variation tendency of each branched line line loss in statistics a period of time, by the variation of line loss
Trend determines the line loss state of each branched line, the differentiation route abnormal wire that the lasting line loss state according to route can be more accurate
The generation of damage avoids the possibility of erroneous judgement, while the line loss state of predicted anomaly line loss route, to instruct platform area line loss monitoring point
The execution of analysis.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment lean line loss analysis system.
Fig. 2 is the structural schematic diagram of intelligent line loss monitoring modular in the present embodiment.
Fig. 3 is the structural schematic diagram of the present embodiment intelligent metering breaker module.
Fig. 4 is the structural schematic diagram of Intelligent reclosing earth leakage protective device 4 in the present embodiment.
Fig. 5 is the structural schematic diagram of intelligent line loss analyzing host module in the present embodiment.
Fig. 6 is the mounting arrangements schematic illustration of each module in concrete application embodiment of the present invention.
Fig. 7 is the schematic illustration that platform area line loss analyzing is realized in concrete application embodiment of the present invention.
Fig. 8 is the structural schematic diagram of lean line loss analysis system in concrete application embodiment of the present invention.
Marginal data: 1, intelligent line loss analyzing host module；11, data acquisition unit；12, topological acquiring unit；13, platform
Area's line loss analyzing unit；131, platform change layer grade line loss analyzing subelement；132, node level line loss analyzing subelement；133, electricity box
Level line loss analyzing subelement；14, failure location unit；15, condition monitoring unit；2, intelligent line loss monitoring modular；21, first
Metering units；22, automatic copy reading unit；23, the first topological recognition unit；3, intelligent metering breaker module；31, switch protection
Unit；32, the second metering units；33, the second topological recognition unit；4, Intelligent reclosing earth leakage circuit breaker module；41, again
Combined floodgate residual current protective unit；42, third metering units；43, third topology recognition unit.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
As shown in Figure 1, the present embodiment lean line loss analysis system can including intelligent line loss analyzing host module 1, difference
Multiple intelligent line loss monitoring modulars 2 at part of nodes are set on each branched line and are separately positioned on each branched line
Multiple intelligent metering breaker modules 3 at part of nodes, each intelligence line loss monitoring modular 2, intelligent metering breaker module 3
It is connect respectively with intelligent line loss analyzing host module 1, the continuous data of route locating for intelligent 2 real-time monitoring of line loss monitoring modular,
Intelligent metering breaker module 3 control locating route switch and real-time monitoring locating for route continuous data, intelligent line loss
Analysis host module 1 acquire in real time respectively each intelligent line loss monitoring modular 2, intelligent metering breaker module 3 continuous data into
Row line loss analyzing.
The present embodiment comprehensively considers not the different line loss analyzing demands in area on the same stage, passes through the part on each branched line in platform area
Intelligent line loss monitoring modular 2 is added at required node, the metering of the branch node as locating for intelligent 2 real-time monitoring of line loss monitoring modular
Data, after the line losses indices of the node locating for each intelligent line loss monitoring modular 2 restore normal, dismountable each intelligent line loss monitoring mould
Block 2, while intelligent metering breaker module 3 is set at node needed for part on each branched line in platform area, broken by intelligent metering
Road device module 3 replaces the switch on the area Yuan Tai route, while the meter of the route as locating for 3 real-time monitoring of intelligent metering breaker module
Measure data, sustainable monitoring line anomalies node, the artificial electrical phenomena lack of standardization of prevention so that can realize it is detachable with it is fixed
Comprehensive platform area line loss analyzing mode is counted by the comprehensive each intelligent line loss monitoring modular 2 of intelligent line loss analyzing host module 1, intelligence
The monitoring data of breaker module 3 are measured, each level, the line loss of node can be calculated by electrical distribution paths, level fining, realize platform area
Lean line loss analyzing.
The above-mentioned lean line loss analysis system of the present embodiment only can need temporarily to monitor analysis according to actual needs
Intelligent line loss monitoring modular 2 is arranged at branch node, is needing arrangement intelligence meter at long-term, emphasis monitoring analysis branch node
Breaker module 3 is measured, or according to the branched line complexity etc. in platform area, is respectively arranged smart wire at required node location
Monitoring modular 2 or intelligent metering breaker module 3 are damaged, area on the same stage can be flexibly applied to not, meets not the line loss analyzing in area on the same stage
Demand.
In the present embodiment, intelligent line loss monitoring modular 2 is integrated with the first metering units 21 for monitoring and metering data, uses
In real-time copy reading user counter box the automatic copy reading unit 22 of the continuous data of each family table and for obtain identification locating for
Platform area, branch's level topological identification signal the first topological recognition unit 23.Required line node arranges intelligence in power distribution network
After energy line loss monitoring modular 2, function of measuring, topology can be realized certainly in each node location respectively by intelligent line loss monitoring modular 2
Dynamic identification function, the continuous data of each intelligence line loss monitoring modular 2, topology identification data are uniformly sent to intelligent line loss point again
Analyse host module 1.
As shown in Fig. 2, in the present embodiment intelligent line loss monitoring modular 2 further include respectively with the first metering units 21, automatic
The line loss analyzing unit 24 that copy reading unit 22 and the first topological recognition unit 23 connect, for what is exported according to each unit
Data carry out line loss analyzing, obtain the line loss of respective branches route or user's counter box so that at each line node by
The preliminary line loss analyzing for realizing branched line or user's counter box may be implemented in the intelligent line loss monitoring modular 2 of arrangement,
In for the intelligent line loss monitoring modular 2 that is arranged at branched line branch node, punished by the acquisition of line loss analyzing unit 24
Total amount data and each branch output continuous data at Zhi Jiedian are compared, and can tentatively obtain the branch node position
Line loss, for being arranged in the intelligent line loss monitoring modular 2 of user's electricity box side, by line loss analyzing unit 24 obtain user's gauge table
The continuous data of each family table is compared in the total input continuous data and user's counter box of case, can tentatively obtain the use
The line loss of family counter box.
As shown in figure 3, intelligent metering breaker module 3 is integrated with the guarantor of the switch for executing switch protection in the present embodiment
Shield unit 31, the second topology identification for the second metering units 32 of monitoring and metering data, for obtaining topological identification signal
Unit 33.Intelligent metering breaker module 3 is opened up by integrally disposed switch protection unit 31, the second metering units 32 and second
Recognition unit 33 is flutterred, can be used as the switch of route to control the on-off of route, while the metering at node can be monitored in real time
Data and topological identification signal.After arranging intelligent metering breaker module 3 at required line node in power distribution network, by intelligence
Measure on-off of the breaker module 3 as the switch control line of route, while real-time monitoring continuous data and acquisition topology
Identification signal allows to realize that function of measuring, topology automatic identification function, each intelligent metering are disconnected in each node location respectively
Switch state, continuous data and the topology identification data of road device module 3 are uniformly sent to intelligent line loss analyzing host module again
1。
In the present embodiment, smart wire specifically is respectively set at the input node of distribution transformer and each output node
Monitoring modular 2 or intelligent metering breaker module 3 are damaged, input node and each output node in every low pressure branched line
Intelligent line loss monitoring modular 2 or intelligent metering breaker module 3, and the input in each user's counter box is respectively set in place
Be respectively set intelligent line loss monitoring modular 2 or intelligent metering breaker module 3 at node, at above-mentioned each node location specifically according to
Intelligent line loss monitoring modular 2 or intelligent metering breaker module 3 is arranged in the actual demand selection in platform area, by distribution transformer
Outgoing line side, each branched line Inport And Outport Node at and user's counter box at be arranged intelligent line loss monitoring modular 2 or
Intelligent metering breaker module 3, it can be achieved that each route level in platform area and branch node line loss monitoring, so as to by line loss
Analysis is fine to each branch node, realizes the line loss analyzing of lean.
The identification of the present embodiment topology is specifically based on the realization of (voltage and current) characteristic signal injection technique, using low frequency zero passage
Carrier wave communication technology, by handheld terminal, modulation voltage and current signal, host side parallel decoding voltage and current, host are rectified simultaneously
Really decoding current information, the area Ze Tai and branch can correctly judge.
As shown in figure 4, intelligent line loss analyzing host module 1 specifically includes data acquisition unit 11, topology in the present embodiment
Acquiring unit 12 and platform area line loss analyzing unit 13, data acquisition unit 11, topological acquiring unit 12 respectively with platform area line loss
Analytical unit 13 connects, and data acquisition unit 11 distinguishes the summary table data in picking platform area, each intelligent line loss monitoring modular 2, intelligence
The continuous data that metering breaker module 3 monitors, topological acquiring unit 12 are counted according to each intelligent line loss monitoring modular 2, intelligence
The topological identification signal determination that amount breaker module 3 obtains obtains power distribution network topological structure, 13 basis of platform area line loss analyzing unit
The data that power distribution network topological structure acquires data acquisition unit 11 are compared, and obtain the line loss analyzing knot of each level in platform area
Fruit output.The specific real-time reception of intelligent line loss analyzing host module 1 at each line node intelligence line loss monitoring modular 2,
After the continuous data that intelligent metering breaker module 3 monitors, according to the hierarchical relationship between each line node, each intelligence is counted
Measure the continuous data of breaker module 3 according to it is total, divide current relationship to be comprehensively compared, available each accurate line of level
Damage.
In the present embodiment, platform area line loss analyzing unit 13 includes the platform change layer grade line for calculating distribution transformer side line damage
Damage analyzes subelement 131, the node level line loss analyzing subelement 132 by calculating branch node level line loss and based on
The electricity box level line loss analyzing subelement 133 of electricity box level line loss is calculated, it is total that platform change layer grade line loss analyzing subelement 131 obtains platform Qu
The monitoring data of table data, the intelligent line loss monitoring modular 2 of distribution transformer outlet side or intelligent metering breaker module 3 carry out
Compare, the line loss for obtaining distribution transformer inlet wire and outlet exports, and node level line loss analyzing subelement 132 obtains each branch line
The monitoring data of intelligent line loss monitoring modular 2 or intelligent metering breaker module 3 on circuit node, and according to distribution net topology knot
Structure is compared the monitoring data got, obtains the line loss output on each branched line, and electricity box level line loss analyzing is single
Member 133 obtain user's counter box side intelligent line loss monitoring modular 2 or intelligent metering breaker module 3 monitoring data and
The data of each family table are compared in user's counter box, obtain the line loss output of user's counter box.By platform change layer grade line loss
Subelement 131, node level line loss analyzing subelement 132 and electricity box level line loss analyzing subelement 133 are analyzed, it can be real respectively
The accurate line loss analyzing of existing platform change layer grade, branch node level, each level of user's counter box.
In the present embodiment, intelligent line loss analyzing host module 1 further includes the failure connecting with platform area line loss analyzing unit 13
Positioning unit 14, the line loss analyzing of 14 receiving platform area line loss analyzing unit 13 of failure location unit output is as a result, according to line loss point
Analysis result judges whether there is failure and there are fault points when failure when determining.By platform area line loss analyzing unit 13
The line loss of each level in platform area can be obtained, platform area line loss can be finely distributed to each branch node, so as to quick, accurate
Positioning specific fault point stealing electricity phenomenon can be monitored in time, while navigating to specific stealing generation area.
In the present embodiment, intelligent line loss analyzing host module 1 further includes the state connecting with platform area line loss analyzing unit 13
Monitoring unit 15 becomes for obtaining the variation of line loss analyzing result of the output of the area designated time period Nei Tai line loss analyzing unit 13
Gesture judges the line status of each each branched line in area according to variation tendency.Instantaneous line loss value is generally difficult to accurately reflect
The line loss of the line loss state in platform area, each branched line is continuing that different variable conditions, this reality may be presented in one section of duration
Example is applied by the variation tendency of each branched line line loss in statistics a period of time, each branch can be determined by the variation tendency of line loss
The line loss state of route, what the lasting line loss state according to route can be more accurate differentiates the generation of route abnormal wire damage, avoids
The possibility of erroneous judgement and the line loss state of predicted anomaly line loss route, if certain route is continuously line loss exception, then by the change of line loss
Change trend can determine the route, and there may be the persistent states etc. that stealing and stealing occur.
In concrete application embodiment, condition monitoring unit 15 specifically obtains the area designated time period Nei Tai line loss analyzing unit
The line loss analyzing result of 13 outputs is counted, and the line loss change curve of each branched line is obtained, and the line loss of each route is changed
Curve is matched with the line loss change curve template library constructed in advance, and corresponding difference is stored in line loss change curve template library
Line loss change curve when failure cause determines to obtain each branched line with the presence or absence of failure and specific event by matching result
Hinder reason.
In the present embodiment, intelligent line loss analyzing host module 1, each intelligent line loss monitoring modular 2 take especially by integral type
The outlet side of sample component and distribution transformer be connected in parallel with acquire respectively the voltage of distribution transformer outlet side, current signal with
Electrical energy measurement is carried out, integral type sampling assemble is based on, can realize the acquisition of voltage, current signal, nothing simultaneously by a set of component
It need to be equipped with independent voltage transformer, current transformer etc. simultaneously.
As shown in figure 5, Intelligent reclosing earth leakage protective is additionally provided in the present embodiment at the node needed for each branched line
Breaker module 4, Intelligent reclosing earth leakage circuit breaker module 4 is integrally disposed to be had for executing earth leakage protective and switch division
The reclosing residual current protective unit 41 of lock identifies platform area topology for the third metering units 42 of electrical energy measurement and for obtaining
The third topology recognition unit 43 of the topological identification signal of structure, each module is connect with master controller respectively.By integrally disposed
Reclosing residual current protective unit 41, third metering units 42, third topology recognition unit 43 and main controller module 44 carry out shape
At a set of reclosing earth leakage circuit breaker, reclosing leakage can be collected and protect open circuit, metering, platform area identification function one, so that only
A set of above-mentioned Intelligent reclosing earth leakage circuit breaker need to be configured, can be realized reclosing leakage protect breaker and meanwhile realize metering,
Platform area identification function can be further simplified whole system without the ancillary equipment of additional configuration metering, the identification of platform area again
Structure, the integrated level for improving system, cost of implementation needed for reducing.
In concrete application embodiment, third metering units 42 specifically use three phase metering table, third topology recognition unit
43 specifically use platform area identifier, and reclosing residual current protective unit 41 is specifically using the reclosing earth leakage protective with multiple gears
Device, each gear of reclosing earth leakage protective device correspond to different residual current threshold values, can be protected with the electric leakage of multiple and different gears
Shield, and can also further configure Intelligent reclosing earth leakage circuit breaker module 4 have electric parameter acquisition, malfunction monitoring and
The functions such as overload protection, over-voltage, under-voltage protection, open-phase protection and short-circuit protection.
As shown in fig. 6, the present invention presses branch's hierarchical arrangement intelligence line loss in concrete application embodiment in Target Station area
Monitoring modular 2, intelligent metering breaker module 3, Intelligent reclosing earth leakage circuit breaker module 4, specifically in distribution transformer
Include two-stage branch between user's counter box, A1 ~ A6 module is arranged on level-one branched line, monitors level-one branch respectively
Continuous data on each route, arranges A11 ~ A12, A31 ~ A32 in second level branch, and A61 ~ A62 module monitors two fractions respectively
Continuous data and copy reading on each route of branch correspond to the continuous data of user's counter box, and each module is intelligent line loss monitoring mould
Block 2 or intelligent metering breaker module 3 or Intelligent reclosing earth leakage circuit breaker module 4, in A11 ~ A12, A31 ~ A32, A61
The lower end of ~ A62 device, using handheld device sending station area and linear-elsatic buckling signal, each device receives this area, linear-elsatic buckling
Platform area automatic identification is realized based on (voltage and current) characteristic signal injection technique after signal, that is, can determine that respective ownership is closed
System, determination obtain platform area topological structure.Each device can be calculated by the comparison of total score data after determining table area topological structure
Line loss, for the route locating for the wherein device A1, by A11, A12 in the device A1 continuous data real-time monitored and second level branch
Monitoring data be compared, the line loss of branched line locating for A1 can be calculated, simultaneously by A11 device real-time monitoring continuous data
The continuous data for reading each family table in electricity box 1 is compared, and the line loss of electricity box 1 can be calculated.
As shown in fig. 7, when the present invention realizes line loss analyzing according to electrical distribution paths, level in concrete application embodiment, intelligence
Can line loss analyzing host module 1 receive the continuous datas of each module monitors, according to topological structure by each data according to it is total, divide electric current
Relationship carries out step-by-step analysis comparison, realizes the accurate line loss analyzing of each level, and such as wherein platform area distribution transformer side line damage can
With entered by platform-platform go out the area 1- Tai Chu2-Tai 3 statistics obtain, platform go out be divided between line loss can be by Tai Chu 2-1 branch
Enter-... N branch enters statistics and obtains, and the line loss of branch 1, which can enter-branch out 1- by branch and branches out 2- and branch out 3, to be counted
It arrives, the line loss of electricity box 1 can be by the family the electricity box 1-1# family table -2# table-..., and the family #N table counts to obtain, and platform area line loss can be fine
It is distributed to each branch node.
It further include the monitor terminal being connect with intelligent line loss analyzing host module 1 in the present embodiment, monitor terminal receives intelligence
The line loss analyzing that energy line loss analyzing host module 1 exports is as a result, and send control instruction to intelligent line loss analyzing host module
1, user can realize the long-range monitoring of line loss analysis system by monitor terminal, be not necessarily to execute-in-place, monitor terminal can be further
Interactive interface is provided, user can manipulate line loss analysis system by interactive interface, while analysis result being passed through
Interface is shown, easy to operate, and be can be convenient intuitive obtain and analyzed as a result, being applicable under the complex environments such as rural power grids real
Existing unattended distribution net platform region line loss analyzing.By the data of intelligent line loss analyzing host module and it can also further lead to
It crosses each family table data of collector acquisition and is uploaded to concentrator, user's acquisition system can obtain the use in required platform area by concentrator
Family continuous data and line loss analyzing result.
The present invention realizes lean analysis system in concrete application embodiment as shown in figure 8, intelligent line loss analyzing host
Module 1 is connected to distribution transformer, intelligent line loss analyzing host module 1 by Intelligent reclosing earth leakage circuit breaker module 4
Distinguish collection voltages, current signal especially by integral type sampling assemble, intelligent line loss analyzing host module 1 simultaneously with platform area
Summary table connection with the data of picking platform area summary table, distribution transformer outlet side respectively occur intelligent metering is respectively set at node
Breaker module 3 is to realize switch control, metering and topology automatic identification function, in the input node of feeder pillar and each defeated
Breaker outlet side at egress be connected in parallel intelligent line loss monitoring modular 2 with the continuous data of each node of real-time monitoring and
It realizes topology automatic identification function, intelligent metering breaker module 3 is set at the input node of user's counter box side with reality
The line loss point for being fine to each node may be implemented by above system in existing switch control, metering and topology automatic identification function
Analysis, if while the line losses indices of certain feeder pillar be continuously normal condition, the intelligent line loss monitoring modular 2 of connection can also be removed with
For next area.Above-mentioned intelligence line loss monitoring modular 2, intelligent metering breaker module 3 and Intelligent reclosing electric leakage are protected
The configuration of shield breaker module 4 can specifically be set according to actual needs.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (10)
1. a kind of lean line loss analysis system, it is characterised in that: including intelligent line loss analyzing host module (1), be respectively set
Multiple intelligent line loss monitoring modulars (2) on each branched line at part of nodes and it is separately positioned on each branched line top
Multiple intelligent metering breaker modules (3) at partial node, each intelligent line loss monitoring modular (2), intelligent metering open circuit
Device module (3) is connect with the intelligent line loss analyzing host module (1) respectively, and the intelligence line loss monitoring modular (2) is supervised in real time
The continuous data of locating route is surveyed, the intelligent metering breaker module (3) controls the switch and real-time monitoring of locating route
The continuous data of locating route, the intelligence line loss analyzing host module (1) acquire each intelligent line loss monitoring in real time respectively
The continuous data progress line loss analyzing of module (2), intelligent metering breaker module (3).
2. lean line loss analysis system according to claim 1, it is characterised in that: the intelligence line loss monitoring modular
(2) the first metering units (21) for monitoring and metering data are integrated with, for each family table in real-time copy reading user counter box
Continuous data automatic copy reading unit (22) and for obtaining the topological identification signal for identifying locating platform area, branch's level
First topological recognition unit (23).
3. lean line loss analysis system according to claim 2, it is characterised in that: the intelligence line loss monitoring modular
(2) further include respectively with first metering units (21), automatic copy reading unit (22) and the first topological recognition unit (23)
The line loss analyzing unit (24) of connection, the data for being exported according to each unit carry out line loss analyzing, obtain respective branches route
Or the line loss of user's counter box.
4. lean line loss analysis system according to claim 1 or 2 or 3, it is characterised in that: the intelligent metering open circuit
Device module (3) is integrated with the switch protection unit (31) for executing switch protection, the second metering for monitoring and metering data
Unit (32), the second topological recognition unit (33) for obtaining the topological identification signal.
5. lean line loss analysis system according to claim 1 or 2 or 3, it is characterised in that: in the defeated of distribution transformer
The intelligent line loss monitoring modular (2) or the intelligent metering breaker mould are respectively set at ingress and each output node
The intelligent line loss monitoring is respectively set in block (3) at the input node of every low pressure branched line and each output node
Module (2) or the intelligent metering breaker module (3), and distinguish at the input node of each user's counter box
The intelligent line loss monitoring modular (2) or the intelligent metering breaker module (3) are set.
6. lean line loss analysis system according to claim 1 or 2 or 3, it is characterised in that: the intelligence line loss analyzing
Host module (1) includes data acquisition unit (11), topological acquiring unit (12) and platform area line loss analyzing unit (13), described
Data acquisition unit (11), topological acquiring unit (12) connect with described area's line loss analyzing unit (13) respectively, the data
The summary table data in acquisition unit (11) difference picking platform area, each intelligent line loss monitoring modular (2), intelligent metering breaker mould
The continuous data that block (3) monitors, the topology acquiring unit (12) is according to each intelligent line loss monitoring modular (2), intelligence
The topological identification signal that metering breaker module (3) obtains, which determines, obtains power distribution network topological structure, described area's line loss point
Analysis unit (13) is compared according to the data that the power distribution network topological structure acquires the data acquisition unit (11), is obtained
The line loss analyzing result output of each level in platform area.
7. lean line loss analysis system according to claim 6, it is characterised in that: described area's line loss analyzing unit
It (13) include for calculating the platform change layer grade line loss analyzing subelement (131) of distribution transformer side line damage, for calculating branch's section
Put the node level line loss analyzing subelement (132) of level line loss and the electricity box level line loss for calculating electricity box level line loss
It analyzes subelement (133), described change layer grade line loss analyzing subelement (131) obtains platform area summary table data, distribution transformer goes out
The intelligent line loss monitoring modular (2) of line side or the monitoring data of the intelligent metering breaker module (3) are compared, and are obtained
It is exported to distribution transformer inlet wire and the line loss of outlet, the node level line loss analyzing subelement (132) obtains each branch line
The monitoring data of the intelligent line loss monitoring modular (2) or the intelligent metering breaker module (3) on circuit node, and according to
The power distribution network topological structure is compared the monitoring data got, obtains the line loss output on each branched line, described
Electricity box level line loss analyzing subelement (133) obtains the intelligent line loss monitoring modular (2) or described of user's counter box side
The data of each family table are compared in the monitoring data and user's counter box of intelligent metering breaker module (3), are used
The line loss of family counter box exports.
8. lean line loss analysis system according to claim 6, it is characterised in that: the intelligence line loss analyzing host mould
Block (1) further includes the failure location unit (14) connecting with described area's line loss analyzing unit (13) and/or condition monitoring unit
(15), the failure location unit (14) receives the line loss analyzing of described area's line loss analyzing unit (13) output as a result, described
Condition monitoring unit (15) judges whether there is failure according to the line loss analyzing result and there are determine when failure when determining
Position fault point, for obtaining the variation for the line loss analyzing result that described area's line loss analyzing unit (13) exports in designated time period
Trend judges the line status of each each branched line in area according to the variation tendency.
9. lean line loss analysis system according to claim 1 or 2 or 3, it is characterised in that: needed for each branched line
Intelligent reclosing earth leakage circuit breaker module (4), the Intelligent reclosing earth leakage circuit breaker mould are additionally provided at node
Block (4) is integrally disposed to be had for executing earth leakage protective and switching the reclosing residual current protective unit (41) of divide-shut brake, for electric energy
The third topology of the third metering units (42) of metering and the topological identification signal for obtaining identification platform area topological structure is known
Other unit (43).
10. lean line loss analysis system according to claim 1 or 2 or 3, it is characterised in that: further include and the intelligence
The monitor terminal that energy line loss analyzing host module (1) connects, the monitor terminal receive the intelligent line loss analyzing host module
(1) line loss analyzing exported is as a result, and send control instruction to the intelligent line loss analyzing host module (1).
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| CN110907719A (en) * | 2019-11-05 | 2020-03-24 | 深圳供电局有限公司 | Low-voltage line subsection line loss real-time monitoring device and method |
| CN111157849A (en) * | 2020-01-09 | 2020-05-15 | 北京国电通网络技术有限公司 | Electricity larceny prevention monitoring system and method for line loss lean of transformer area |
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