CN108063493A - A kind of method and system of quick positioning low-voltage platform area line loss - Google Patents
A kind of method and system of quick positioning low-voltage platform area line loss Download PDFInfo
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- CN108063493A CN108063493A CN201711419024.0A CN201711419024A CN108063493A CN 108063493 A CN108063493 A CN 108063493A CN 201711419024 A CN201711419024 A CN 201711419024A CN 108063493 A CN108063493 A CN 108063493A
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- H02J13/0075—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
A kind of method and system of quick positioning low-voltage platform area line loss, including mobile electric meter, line loss analyzing instrument and mobile terminal：The taiwan area topological relation in the low-voltage platform area between transformer and each feeder pillar is first obtained by line loss analyzing instrument；Again by being acquired by mobile electric meter to a large amount of taiwan areas, user power utilization data；Finally by mobile terminal summary data, the branch's line loss per unit for obtaining each feeder pillar branch is calculated, realizes the accurate positionin to low-voltage platform area exception line loss branch.The present invention using teletransmission by the way of, by mobile terminal automatically to since work order task, field diagnostic positioning, to report business department whole process realization closed loop management, efficiency of management higher.Taiwan area integral tube lineation damage can be only directed to by being different from the prior art, the present invention can calculate taiwan area Nei Ge branches line loss, it realizes the quick positioning to high consume taiwan area exception line loss, and each branch's electricity consumption distribution situation is provided, electric administrative department taiwan area line loss improvement level can be effectively improved.
Description
Technical field
The present invention relates to intelligent grid field more particularly to a kind of localization method to low-voltage platform area line loss and it is
System.
Background technology
It is called for response State Grid Corporation of China's construction " world-class power grid ", various regions power department control general headquarters construction " generation
Boundary's one stream power grid " target goals matrix, identifies inadequacies, and by Optimized Operation, reduces transmission and distribution network line loss, proposes to build high
Effect, good intelligent distribution network target.
However, actual state's net is in the multiple large-scale the application system constructions popularizations in electricity consumption side and deepening process, it has been found that mesh
Before, the abnormal higher situation of taiwan area electricity consumption consume is difficult to administer.The reason is that line loss exception taiwan area, is frequently present of system shelves
The entanglement of case relation, branch's relation are unintelligible, measurement error, mutual inductor ratio are not inconsistent, error connection, line electrical leakage, stealing the problems such as.
In particular, since low-voltage platform area is large number of and power grid connection relation is complicated, and lacking effective retrospect archives, line loss improvement is
One numerous and jumbled system sex work.How reliable and effective means to be used to reach wastage reducing and energy saving target, have become power supplies at different levels
Administrative department's issues that need special attention.
Although some Controlling line loss methods for being directed to low-voltage platform area are also proposed in the prior art, however, due to low-voltage platform
Area's line construction is complicated, even if finding that line loss also is difficult to be accurately positioned and correlation means is taken to be administered extremely.Therefore,
It is badly in need of a kind of technology that can quickly position low-voltage platform area line loss at present.
The content of the invention
In order to solve the shortcomings of the prior art, it is an object of the invention to provide a kind of quick positioning low-voltage platform area lines
The method and system of path loss consumption.
First, to achieve the above object, a kind of method of quick positioning low-voltage platform area line loss is proposed, including following step
Suddenly：
The first step, the transmission group net signal between transformer and each feeder pillar in low-voltage platform area analyze the networking letter
Number, according to the networking signal, obtain taiwan area topological relation；
Second step determines that the electricity of transformer and each feeder pillar freezes in the low-voltage platform area according to the low-voltage platform area situation
Junction parameter；
3rd step calibrates the measurement end clock of transformer and each feeder pillar in the low-voltage platform area, is frozen according to the electricity
Junction parameter, obtain the transformer and each feeder pillar freezes electric energy indicating value；
4th step according to the branch's line loss per unit freezed electric energy indicating value and calculate each feeder pillar branch, is obtained in calculating
When the branch's line loss per unit obtained is more than threshold value, abnormal line loss position is positioned according to the taiwan area topological relation.
Further, in the above method, in the 4th step, branch's line loss per unit of each feeder pillar branch is counted as follows
It calculates：
Branch's line loss per unit (%)=(branch's line loss electricity/parent branch electricity) * 100；
Wherein, branch's line loss electricity (kWh)=parent branch electricity-sub-branch's electricity；
Wherein, parent branch electricity (the kWh)=parent branch this freeze electric energy indicating value-parent branch last time and freeze electric energy and show
Value；Sub-branch's electricity (the kWh)=sub-branch this freeze electric energy indicating value-sub-branch and freezed electric energy indicating value last time；
The parent branch is determined with the sub-branch by the taiwan area topological relation.
Further, in the above method, in the first step, obtain taiwan area topological relation and be as follows：
Step T1, in the low-voltage platform area each feeder pillar side by taiwan area power grid to the transformer side transmission group
Net signal；
Step T2, the transformer side receive the networking signal, confirm the connection relation with the feeder pillar side, obtain
And update taiwan area topological relation；
Step T3, repeats the above steps, until obtaining whole feeder pillar sides and all transformations in the low-voltage platform area
The connection relation of device side obtains complete taiwan area topological relation.
Further, in the above method, in the second step, the electricity freezing parameters include：Measurement end clock has freezed
Begin time, duration of freezing, freezing data points.
Secondly, to achieve the above object, it is also proposed that a kind of system of quick positioning low-voltage platform area line loss, including movement
Ammeter, which is characterized in that further include line loss analyzing instrument and mobile terminal；Wherein, the mobile electric meter hang on the low-voltage platform
In area on transformer and each feeder pillar circuit, the mobile electric meter passes through mobile terminal described in micropower wireless network connection；Institute
It states and (includes bluetooth in mobile terminal by micropower wireless network connection between line loss analyzing instrument and the mobile terminal and turn micro-
Power radio network interface convertor)；
The line loss analyzing instrument is used in the low-voltage platform area transmission group net signal between transformer and each feeder pillar,
The networking signal is analyzed, according to the networking signal, taiwan area topological relation is obtained and is connected by the micropower wireless network
It receives and sends to the mobile terminal；
The mobile electric meter is used for the control according to the mobile terminal, obtains the transformer and each branch that it hangs
Case circuit freezes electric energy indicating value；
The mobile terminal is used to obtain the taiwan area topological relation that the line loss analyzing instrument is sent, according to the taiwan area
Situation determines the electricity freezing parameters of each mobile electric meter, gathers what each mobile electric meter obtained according to the electricity freezing parameters
The transformer and each feeder pillar circuit freeze electric energy indicating value, and each feeder pillar branch is calculated according to the electric energy indicating value of freezing
Branch's line loss per unit on road when calculating the branch's line loss per unit obtained more than threshold value, positions abnormal according to the taiwan area topological relation
Line loss position.
Further, in above system, the line loss analyzing instrument includes host and at least one slave；The line loss analyzing instrument
Host connect transformer side in the low-voltage platform area respectively, the slave of the line loss analyzing instrument connects the low-voltage platform area respectively
Interior each feeder pillar side；
Each slave of the line loss analyzing instrument sends networking signal to each host, and the host of the line loss analyzing instrument connects
The networking signal is received, the connection relation with the slave is confirmed, obtains complete taiwan area topological relation.
Further, in above system, micro power radio communication list is passed through between the mobile electric meter and the mobile terminal
Member accesses the micropower wireless network, and the working frequency of the micro power radio communication unit is 470~510MHz, emits work(
Rate is 50mW.
Specifically, in above system, the mobile terminal is the mobile terminal device for supporting intelligent use.
Specifically, in above system, the threshold value of branch's line loss per unit is according to the requirement of national grid line losses indices and scene
Diagnosis departure determines jointly.
Advantageous effect
The collective effect that the present invention passes through mobile electric meter, line loss analyzing instrument and mobile terminal：By being made of mobile electric meter
User power utilization acquisition system a large amount of taiwan areas, user power utilization data are acquired, by under mobile terminal by the way of teletransmission
Fill work order, processing and upper wiring damage exception and handling result work order, to since work order task, field diagnostic positioning, to will determine
It is filled in the result of position and realizes closed loop management, efficiency of management higher to the whole process of business department.
The present invention utilizes the ad hoc network function of line loss analyzing instrument, realizes the typing to taiwan area topological relation and draws work(automatically
Can, and based on this, carry out branch's electricity and freeze, calculate branch's line loss per unit, real-time (day) line loss of statistic of classification taiwan area, finally
It is abnormal by calculating the branch's line loss per unit position line damage obtained.Taiwan area integral tube lineation can be only directed to by being different from the prior art
Damage, the present invention can calculate each in taiwan area according to the information that user power utilization acquisition system system (especially mobile electric meter) provides
Branch's line loss realizes the quick positioning to high consume taiwan area exception line loss, and provides each branch's electricity consumption distribution situation, can be effective
It improves electric administrative department taiwan area line loss and administers level.
Further, the present invention directly utilizes line loss analyzing instrument when confirming wire topologies in the low-voltage platform area
Host and slave, the transmission group net signal between transformer and each feeder pillar in the low-voltage platform area analyze the networking letter
Number, according to the networking signal, confirm the connection relation between the host, slave, obtain complete taiwan area topological relation, and
The taiwan area topological relation of acquisition is sent to the mobile terminal by bluetooth or by micropower wireless network.
Between the targeted handheld terminal of the present invention, multi-functional line loss analyzer, mobile electric meter equipment by micropower without
Line ad hoc network mode identifies branch information, branched line freezes the facility informations automatic data collections such as electricity (mobile electric meter),
Branch's line loss electricity, line loss per unit are successively adjusted step by step, it is quick to position low-voltage platform area exception line loss point.Each device of system meets
GB/T 17626.4-2008 EMC tests and measurement technology electrical fast transient (eft) immunity experiment；GB/T
The 41 degree of experiments of 17626.5-2008 EMC tests and measurement technology surge (impact) anti-interference；GB/T17626.11-2008
EMC test and measurement technology voltage dip, short interruptions and voltage change immunity experiment, can show using complex work
, possess compared with strong electromagnetic antijamming capability, can be used in wide temperature range.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.
Description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, and with the present invention's
Embodiment together, for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the flow chart according to the method for the quick positioning low-voltage platform area line loss of the present invention；
Fig. 2 is the block diagram according to the system of the quick positioning low-voltage platform area line loss of the present invention；
Fig. 3 is the flow diagram that line loss analyzer obtains taiwan area topological relation in the present invention；
Fig. 4 is the step schematic diagram of mobile terminal location exception line loss position in the present invention.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein
It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is according to the method flow schematic diagram of the quick positioning low-voltage platform area line loss of the present invention, by being arranged in
Matching somebody with somebody between the handheld terminal, (multi-functional) line loss analyzing instrument, mobile electric meter between taiwan area, branched line, electricity consumption user's meter
It closes, following steps is performed, so as to position abnormal line loss position：
The first step, the transmission group net signal between transformer and each feeder pillar in low-voltage platform area analyze the networking letter
Number, according to the networking signal, obtain taiwan area topological relation；Wherein, the networking signal is specially Two-Way Automatic Communication System
Signal；
Second step determines that the electricity of transformer and each feeder pillar freezes in the low-voltage platform area according to the low-voltage platform area situation
Junction parameter；It determines to specifically include electricity time started that operating personnel determine according to site inspection during electricity freezing parameters, freeze
The operating parameters such as when cycle, mobile electric meter clock school, hang mobile electric meter by each transformer and each branch and freeze electricity and provide jelly
Junction parameter；
3rd step, calibrating the measurement end clock of transformer and each feeder pillar in the low-voltage platform area, (measuring accuracy is calibrated
Completed when dispatching from the factory), according to the electricity freezing parameters, obtain the transformer and each feeder pillar freezes electric energy indicating value；
4th step according to the branch's line loss per unit freezed electric energy indicating value and calculate each feeder pillar branch, is obtained in calculating
When the branch's line loss per unit obtained is more than threshold value, abnormal line loss position is positioned according to the taiwan area topological relation.
Further, in the above method, in the 4th step, branch's line loss per unit of each feeder pillar branch is counted as follows
It calculates：
Branch's line loss per unit (%)=(branch's line loss electricity/parent branch electricity) * 100；
Wherein, branch's line loss electricity (kWh)=parent branch electricity-sub-branch's electricity；
Wherein, parent branch electricity (the kWh)=parent branch this freeze electric energy indicating value-parent branch last time and freeze electric energy and show
Value；Sub-branch's electricity (the kWh)=sub-branch this freeze electric energy indicating value-sub-branch and freezed electric energy indicating value last time；
The taiwan area topological relation as described in the first step determines the parent branch with the sub-branch.
Further, in the above method, in the first step, obtain taiwan area topological relation and be as follows：
Step T1, in the low-voltage platform area each feeder pillar side by taiwan area power grid to the transformer side transmission group
Net signal；
Step T2, the transformer side receive the networking signal, confirm the connection relation with the feeder pillar side, obtain
And update taiwan area topological relation；
Step T3, repeats the above steps, until obtaining whole feeder pillar sides and all transformations in the low-voltage platform area
The connection relation of device side obtains complete taiwan area topological relation.
Further, in the above method, in the second step, the electricity freezing parameters include：Measurement end clock has freezed
Begin time, duration of freezing, freezing data points.
Secondly, with reference to figure 2, to achieve the above object, it is also proposed that a kind of system of quick positioning low-voltage platform area line loss,
Including mobile electric meter, which is characterized in that further include line loss analyzing instrument and mobile terminal；
Wherein, the mobile electric meter is hung in the low-voltage platform area on transformer and each feeder pillar circuit, the movement
Ammeter passes through mobile terminal described in micropower wireless network connection；By micro- between the line loss analyzing instrument and the mobile terminal
Power radio network connects；
The line loss analyzing instrument is used in the low-voltage platform area transmission group net signal between transformer and each feeder pillar,
The networking signal is analyzed, according to the networking signal, taiwan area topological relation is obtained and is sent out by the micropower wireless network
It send to the mobile terminal；To realize the conversion of micropower wireless network data, in general, mobile terminal, which can be equipped with bluetooth, turns wireless
Interface convertor, micro power radio communication unit；
The mobile electric meter is used for the control according to the mobile terminal, obtains the transformer and each branch that it hangs
Case circuit freezes electric energy indicating value；
The mobile terminal is used to obtain the taiwan area topological relation that the line loss analyzing instrument is sent, according to the taiwan area
Situation (carrying additionally branch's electricity box including topological relation) determines the electricity freezing parameters of each mobile electric meter, freezes according to the electricity
What junction parameter gathered the transformer that each mobile electric meter obtains and each feeder pillar circuit freezes electric energy indicating value, is freezed according to described
Electric energy indicating value calculates branch's line loss per unit of each feeder pillar branch, when calculating the branch's line loss per unit obtained more than threshold value, root
Abnormal line loss position is positioned according to the taiwan area topological relation.
Specifically, the mobile terminal device for supporting intelligence App applications can be selected in the handheld terminal, for live taiwan area line loss
The acquisition process analysis center of diagnostic device, management taiwan area, branched line, branched line carry additionally mobile electric meter, electric supply meter etc.
Nodal information.
The multi-functional line loss analyzer is completed taiwan area branch information and is known to obtain the functions such as linear-elsatic buckling, platform-family relation
The not acquisition of (taiwan area topological relation) basic data.
The mobile electric meter is live real-time branch for acquisition taiwan area is total, branched line freezes electricity data function in real time
Line loss calculation analysis provides data.
The bluetooth turns wireless interface converter and is carried for handheld terminal with equipment such as multi-functional line loss analyzer, mobile electric meters
Turn the conversion equipment of wireless data transmission for bluetooth.
Further, in above system, the line loss analyzing instrument includes host and at least one slave；The line loss analyzing instrument
Host connect transformer side in the low-voltage platform area respectively, the slave of the line loss analyzing instrument connects the low-voltage platform area respectively
Interior each feeder pillar side；
Each slave of the line loss analyzing instrument sends networking signal to each host, and the host of the line loss analyzing instrument connects
The networking signal is received, the connection relation with the slave is confirmed, obtains complete taiwan area topological relation.
Further, in above system, micro power radio communication list is passed through between the mobile electric meter and the mobile terminal
Member accesses the micropower wireless network, and the working frequency of the micro power radio communication unit is 470~510MHz, emits work(
Rate is 50mW.Wireless performance meets《The technology requirement of micropower (short distance) wireless device》(letter portion is without [2005] No. 423),
《Power user power consumption information acquisition system communication protocol:The wireless interconnected intercommunication communication standard of micropower》.
Specifically, in above system, the mobile terminal is the mobile terminal device for supporting intelligent use.
Specifically, in above system, the threshold value of branch's line loss per unit is according to the requirement of national grid line losses indices and scene
Diagnosis departure (wherein, field diagnostic departure usually requires to be obtained according to actual field diagnostic experiences) is common to be determined.
The course of work of above system is specific as follows：
First, by line loss analyzing instrument host be mounted on taiwan area transformer side, according to black, red, green, yellow order will take electricity folder according to
The secondary N lines for clamping Circuit Fault on Secondary Transformer Down Highway row's screw or switch, C phases, B phases, A phases, host equipment power on；Slave is installed
The plug of power cord is sequentially ingressed into black, the yellow terminal of equipment at feeder pillar according to black, yellow order, color corresponds.It treats
Slave is installed and after the power is turned on, host enters linear-elsatic buckling function, and slave enters linear-elsatic buckling function, clicks on " transmission " key and carries out
Linear-elsatic buckling such as slave screen display " No. 2 equipment No.1 branches ", represents that the branch of slave identification belongs to the one of No. 2 equipment
Branch such as slave screen display " no branch ", represents that the branch is not belonging to current host device (main split), handheld terminal will divide
Branch recognition result is gathered and is stored in terminal device, by successively gathering the branch information of all levels under the taiwan area step by step,
Handheld terminal, which is automatically performed, draws taiwan area topological relation figure function.
Then, further, according to the taiwan area topological relation of foregoing completion, taiwan area is total, branched line carrys additionally mobile electricity
Table, handheld terminal issue total and branch's electricity freezing parameters, freezing parameters and specifically include clock, freeze initial time, freeze week
Phase, freezing data points, mobile electric meter receive complete after the freezing parameters that handheld terminal issues function have three (1 for clock school when
Function, 2 be to start to freeze electricity data according to electricity freezing parameters, and 3 trailing wheels when being school survey clock and authentication function), wherein by
It is required the characteristics of this method is high to clock request, deviation occurs in certain such as live mobile electric meter clock, must be by the way of point school
Until the mobile electric meter clock that whole branched lines are carried additionally is synchronously accurate, point school is the failure scenarios at unified school, utilizes a school
It instructs and the mobile electric meter of indivedual calibrations failure is calibrated, handheld terminal gathers each branch node by micropower wireless network
Freeze electricity data, calculate branched line electricity and line loss per unit, (referred to according to setting line loss outlier threshold according to national grid line loss
Mark requirement and actual field diagnostic experiences value are combined) automatic decision whether there is abnormal line loss.Wherein, for branch's line loss per unit
Calculating, with reference to equation below：
Branch's line loss per unit (%)=(branch's line loss electricity/parent branch electricity) * 100；
Wherein, branch's line loss electricity (kWh)=parent branch electricity-sub-branch's electricity；
Wherein, parent branch electricity (the kWh)=parent branch this freeze electric energy indicating value-parent branch last time and freeze electric energy and show
Value；Sub-branch's electricity (the kWh)=sub-branch this freeze electric energy indicating value-sub-branch and freezed electric energy indicating value last time；
The parent branch is determined with the sub-branch by the taiwan area topological relation.
The present invention freezes electricity by successively obtaining branch step by step, calculates analysis branch line loss electricity, realizes that line loss is abnormal
Quick positioning.Power grid department is facilitated to search whether that department provides data supporting for power utility check there are user's electricity stealing.
Technical solution of the present invention includes mobile electric meter, line loss analyzing instrument and mobile terminal, innovative point and is：By line loss point
Analyzer obtains the taiwan area topological relation between transformer and each feeder pillar in the low-voltage platform area；Simultaneously by by mobile electric meter
A large amount of taiwan areas, user power utilization data are acquired；Finally by mobile terminal summary data, calculate and obtain each feeder pillar
Branch's line loss per unit of branch, realizes the accurate positionin to low-voltage platform area exception line loss branch.The present invention by the way of teletransmission, by
Mobile terminal automatically to since work order task, field diagnostic positioning, to report business department whole process realize closed loop pipe
Reason, efficiency of management higher.Taiwan area integral tube lineation damage can be only directed to by being different from the prior art, and the present invention can calculate taiwan area
Nei Ge branches line loss realizes the quick positioning to high consume taiwan area exception line loss, and provides each branch's electricity consumption distribution situation, can
Effectively improve electric administrative department taiwan area line loss improvement level.
The present invention is easy to carry, and securely and reliably, device interface enriches, and linear-elsatic buckling is accurate, measuring accuracy is high, adopts in real time
Collection, statistics adjust taiwan area branch line loss electricity, line loss per unit, quickly position hooks, adapt to the various complicated taiwan area transformations in scene
Device working environment, systematically to solve the problems, such as that circuit high consume in low-voltage platform area provides a kind of reliable and stable site intelligent diagnosis
Method.
One of ordinary skill in the art will appreciate that：The foregoing is only a preferred embodiment of the present invention, and does not have to
In the limitation present invention, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, still can to foregoing embodiments record technical solution modify or to which part technical characteristic into
Row equivalent substitution.Within the spirit and principles of the invention, any modifications, equivalent replacements and improvements are made should all include
Within protection scope of the present invention.
Claims (9)
- A kind of 1. method of quick positioning low-voltage platform area line loss, which is characterized in that step includes：The first step, the transmission group net signal between transformer and each feeder pillar in low-voltage platform area, analyzes the networking signal, root According to the networking signal, taiwan area topological relation is obtained；Second step determines that the electricity of transformer and each feeder pillar freezes to join in the low-voltage platform area according to the low-voltage platform area situation Number；3rd step calibrates the measurement end clock of transformer and each feeder pillar in the low-voltage platform area, freezes to join according to the electricity Number, obtain the transformer and each feeder pillar freezes electric energy indicating value；4th step according to the branch's line loss per unit freezed electric energy indicating value and calculate each feeder pillar branch, is calculating what is obtained When branch's line loss per unit is more than threshold value, abnormal line loss position is positioned according to the taiwan area topological relation.
- 2. the method for quick positioning low-voltage platform area line loss as described in claim 1, which is characterized in that the 4th step In, branch's line loss per unit of each feeder pillar branch calculates as follows：Branch's line loss per unit (%)=(branch's line loss electricity/parent branch electricity) * 100；Wherein, branch's line loss electricity (kWh)=parent branch electricity-sub-branch's electricity；Wherein, parent branch electricity (the kWh)=parent branch this freeze electric energy indicating value-parent branch last time and freeze electric energy indicating value； Sub-branch's electricity (the kWh)=sub-branch this freeze electric energy indicating value-sub-branch and freezed electric energy indicating value last time；The parent branch is determined with the sub-branch by the taiwan area topological relation.
- 3. the method for quick positioning low-voltage platform area line loss as claimed in claim 2, which is characterized in that the first step In, it obtains taiwan area topological relation and is as follows：Step T1, each feeder pillar side sends networking to the transformer side by taiwan area power grid and believes in the low-voltage platform area Number；Step T2, the transformer side receive the networking signal, confirm the connection relation with the feeder pillar side, obtain and more New taiwan area topological relation；Step T3, repeats the above steps, until obtaining whole feeder pillar sides and all transformer sides in the low-voltage platform area Connection relation, obtain complete taiwan area topological relation.
- 4. the method for quick positioning low-voltage platform area line loss as claimed in claim 2, which is characterized in that the second step In, the electricity freezing parameters include：Measurement end clock freezes initial time, duration of freezing, freezing data points.
- 5. a kind of system of quick positioning low-voltage platform area line loss, including mobile electric meter, which is characterized in that further include line loss point Analyzer and mobile terminal；The mobile electric meter is hung in the low-voltage platform area on transformer and each feeder pillar circuit, and the mobile electric meter passes through micro- Power radio network connects the mobile terminal；Pass through micropower wireless network between the line loss analyzing instrument and the mobile terminal Network connects；The line loss analyzing instrument is used in the low-voltage platform area transmission group net signal between transformer and each feeder pillar, analysis The networking signal according to the networking signal, obtains taiwan area topological relation and is sent to by the micropower wireless network The mobile terminal；The mobile electric meter is used for the control according to the mobile terminal, obtains the transformer and each feeder pillar line that it hangs Freeze electric energy indicating value in road；The mobile terminal is used to obtain the taiwan area topological relation that the line loss analyzing instrument is sent, according to the taiwan area situation It determines the electricity freezing parameters of each mobile electric meter, gathers the transformer and each feeder pillar circuit that each mobile electric meter obtains Freeze electric energy indicating value, according to the branch's line loss per unit freezed electric energy indicating value and calculate each feeder pillar branch, obtained in calculating When the branch's line loss per unit obtained is more than threshold value, abnormal line loss position is positioned according to the taiwan area topological relation.
- 6. the system of quick positioning low-voltage platform area line loss as claimed in claim 5, which is characterized in that the line loss analyzing Instrument includes host and at least one slave；The host of the line loss analyzing instrument connects transformer side in the low-voltage platform area, the slave point of the line loss analyzing instrument respectively Each feeder pillar side in the low-voltage platform area is not connected；Each slave of the line loss analyzing instrument sends networking signal to each host, and the host of the line loss analyzing instrument receives institute Networking signal is stated, the connection relation with the slave is confirmed, obtains complete taiwan area topological relation.
- 7. the system of quick positioning low-voltage platform area line loss as claimed in claim 6, which is characterized in that the mobile electric meter The micropower wireless network is accessed by micro power radio communication unit between the mobile terminal, the micropower is wireless The working frequency of communication unit is 470~510MHz, transmission power 50mW.
- 8. the system of quick positioning low-voltage platform area line loss as claimed in claim 6, which is characterized in that the mobile terminal To support the mobile terminal device of intelligent use.
- 9. the system of quick positioning low-voltage platform area line loss as claimed in claim 6, which is characterized in that branch's line loss The threshold value of rate determines jointly according to the requirement of national grid line losses indices and field diagnostic departure.
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