CN109345786A - A kind of non-resident user power utilization abnormal conditions automatic alarm system of low pressure - Google Patents
A kind of non-resident user power utilization abnormal conditions automatic alarm system of low pressure Download PDFInfo
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Abstract
A kind of non-resident user power utilization abnormal conditions automatic alarm system of low pressure belongs to power supply management field.Its one special transformer acquisition terminal of user setting non-resident for each low pressure, one multiplexing electric abnormality automatic alarm platform is set in main website, by constructing data Layer, supporting layer, logical layer and presentation layer based on special transformer acquisition terminal, to realize the automatic alarm of the non-resident user power utilization abnormal conditions of low pressure.It is using the non-resident user power utilization situation of low pressure as emphasis monitored object, establish multiplexing electric abnormality automatic alarm platform, set the database judgment basis of fault alarm, realization is automatically reminded to early warning to multiplexing electric abnormality, to realize the timely discovery to electrical equipment failure, as the reference frame of engineers and technicians' site inspection, the working efficiency of failure defect elimination and the investigation rate to transgression for using electricity are promoted, ultimately helps the promotion for realizing power supply company's management level.It can be widely used for power supply management field.
Description
Technical field
The invention belongs to power supply management field more particularly to a kind of multiplexing electric abnormality situations for the non-resident user of low pressure certainly
Dynamic alarm system.
Background technique
Power information acquisition system (also known as " power information acquisition platform ", similarly hereinafter) can be achieved metering device on-line monitoring and
The real-time acquisition of the important informations such as customer charge, electricity, voltage.
In time, basic data completely, accurately is provided for power information acquisition system, is remote automatic meter reading, line loss reality
When calculate etc. marketing core business implementation provide technical foundation, thus be each link of electric power enterprise management analysis decision
Technical support is provided, promotes electric power enterprise to the respond of turn of the market, customer demand and user power utilization state.
With deepening continuously for electricity market reform, larger change is also had occurred in the acquisition mode of resident's power information
Change, the method for manual metering charge has not adapted to the requirement of modern management, solves the problems, such as the counting cost by gas meter of mesolow user
It is initially mentioned schedule, remote concentrated copy meter technology becomes the hot spot studied both at home and abroad.So far from the 1990s, each net save,
Prefecture-level company needs to establish the acquiring electric energy information system for different type user according to business development, mainly includes critical point
Electric Energy Acquisition System, power load management system, client's Electric Energy Acquisition System, low pressure automatic meter reading system and distribution are automatic
Change system.
State Grid Corporation of China's overall planning proposes to utilize 3~5 years, builds up power consumer acquisition system, cover whole users,
Realize that power information acquires in real time, supports pre-payment control, i.e. " all standing, full acquisition, control in full " comprehensively.
The whole people that power information acquisition system has been completed in Shanghai power supply company cover, all with per family in power supply area
Realize automatic centralized automatic meter-reading, greatly improve meter reading working efficiency and meter reading accuracy rate, save enterprise's items operation at
This.
As shown in fig. 1, the user which is covered amounts to 1875080 families, wherein low-voltage collecting meter reading 50KW or less
Have at 1857743 families (1671332 family of resident), 13491 family of special transformer acquisition terminal 50KW-250KW low-voltage customer, 250KW and
Above 3846 family of high pressure client；It can be seen that special transformer acquisition terminal 50KW-250KW low-voltage client is whole much higher than load control system
Hold the high pressure client of 250KW or more.
As it can be seen that resident's accounting 1.38%, low pressure is non-resident to be accounted for from the point of view of special transformer acquisition terminal end subscriber accounting
97.79%, high pressure is non-resident to account for 0.83%；The non-resident user of low pressure accounts for exhausted large scale.
But although existing power information acquisition system realizes that electricity consumption electric supply meter voltage, calling together for electric current are copied, in systems
Electric energy meter information, meter reading, parameter etc. can be inquired, but does not carry out automatic early-warning to calling the abnormal data copied together, thus
Lead to the fault discovery of electricity consumption acquisition equipment not in time.The failure that user acquires equipment is still to be sent out in a manner of manually patrolling
It is existing, cause the working efficiency of failure defect elimination low, accuracy rate is not high, is unfavorable for the management to work defect elimination.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of non-resident user power utilization abnormal conditions automatic alarms of low pressure
System.It is flat to establish multiplexing electric abnormality automatic alarm using the non-resident user power utilization situation of 50KW or more low pressure as emphasis monitored object for it
Platform sets the database judgment basis of fault alarm, and realization is automatically reminded to early warning to multiplexing electric abnormality, sets to realize to electricity consumption
The timely discovery of standby failure, as the reference frame of engineers and technicians' site inspection, promoted failure defect elimination working efficiency and
To the investigation rate of transgression for using electricity, the promotion for realizing power supply company's management level is ultimately helped.
The technical scheme is that a kind of non-resident user power utilization abnormal conditions automatic alarm system of low pressure of is provided, packet
It includes and the power information acquisition system constituted is sequentially connected by main website, communication channel, acquisition equipment；It is characterized in that:
For the non-resident user of each 50KW or more low pressure, a special transformer acquisition terminal is set, to become user to special
The equipment that power information is acquired, responsible electric energy meter data acquisition, electric energy measuring equipment operating condition and power quality monitoring,
Customer electricity load and electric energy monitor, and acquisition data are managed and transmitted in both directions；
One multiplexing electric abnormality automatic alarm platform is set in main website, for carrying out data parsing to acquisition data, according to
The fault alarm criterion of setting is monitored in real time, is carried out being automatically reminded to early warning to there is the case where multiplexing electric abnormality, is realized electricity consumption
The function of abnormal automatic early-warning, so that engineers and technicians can carry out defect elimination work to faulty equipment in time；
The automatic alarm system, by constructing data Layer, supporting layer, logical layer and exhibition based on special transformer acquisition terminal
Show layer, to realize the automatic alarm of the non-resident user power utilization abnormal conditions of low pressure；
Data Layer, supporting layer, logical layer and the presentation layer constitutes one four layers of application logicframework；
Wherein, data Layer includes the system database of power user power consumption information acquisition system；Supporting layer includes based on special
The data acquisition for becoming acquisition terminal and the data access between each special transformer acquisition terminal and main website；
Logical layer judges failure according to the fault alarm criterion of setting；
Represent layer is the part of main website oriented manipulation user, includes at least acquisition data list, fault alarm prompt and column
Table and data statistics analytical statement；
The automatic alarm system, for realizing multiplexing electric abnormality automatic failure alarm remind function, include at least pair
The automatic alarm of multiplexing electric abnormality failure carries out strengthened research to power information acquisition system data collected to realize.
Specifically, the special transformer acquisition terminal real-time electricity consumption data collected, includes at least terminal device address code, peace
Fill address, device type, acquisition time, three-phase voltage, electric current and electricity.
Further, the special transformer acquisition terminal is the equipment being acquired to the non-resident user power utilization information of low pressure,
It is responsible for electric energy meter data acquisition, electric energy measuring equipment operating condition and power quality monitoring, customer electricity load and electric flux prison
Control, and acquisition data are managed and transmitted in both directions.
The function of its special transformer acquisition terminal includes:
1) data communication:
Communication including special transformer acquisition terminal and main website, the communication of special transformer acquisition terminal and electric energy meter RS485；
2) data acquire:
Special transformer acquisition terminal is communicated using downstream communication ports RS485 with electric energy meter, and the data sent on electric energy meter are received, real
The acquisition of current power information；
3) data processing
It according to the data that electric energy meter acquires, is parsed by specification, the energy information of analysis electric energy meter acquisition.By system point
After analysis, critical event is reported into main website；Warning message is shown to and is carried out relevant output control, final system is according to initial
Memory Allocation when change stores related data:
4) load control system:
Special transformer acquisition terminal executes tripping automatically, realizes by receiving the control command of main website according to order setting parameter
The functions such as the long-range control of load；After execution, issues the sound or voice messaging reminds client, client is allowed to close a floodgate.
Specifically, under the communication protocol for carrying out MESSAGE EXCHANGE between the automatic alarm platform and special transformer acquisition terminal meets
Column transmission rule:
A) line idle state is binary one；
B) without route idle interval between the character of frame；Line idle interval between two frames at least needs 33；
C) as by mistake e) has been detected, the line idle interval between two frames at least needs 33；
D) frame check and (CS) are the arithmetic sums of the eight-bit group of user data area, do not consider carry digit；
E) recipient verifies:
For each character: verification start bit, stop position, even parity bit；
For every frame: examining the beginning in the fixation heading of frame and terminate the character and specification marker of defined；
Identify 2 length L；Every received number of characters of frame is User Data Length L1+8；Have frame check and；There is termination character；It verifies out
When one mistake, verification is by line idle interval c)；If these verifications have a failure, give up this frame；If zero defect, this
Frame data are effective.
Further, the automatic alarm system is carried out the multiplexing electric abnormality event of automatic alarm by following rule
Alarm indication:
1) same event avoids repeating to report, and event content includes the complete phase of event, terminal address and Exception Type
With, in the period for every eight hours, only retain first.
2) the obvious wrong event of content is rejected, including event time is later than earlier than equipment set-up time and event time and works as
Situation after the preceding k days time, k recommended value therein are 3.
Further, the automatic alarm system realizes that following 6 kinds of failures are different on multiplexing electric abnormality automatic alarm platform
Normal automatic alarm:
1) electric voltage exception class failure: including under-voltage, decompression and open phase fault；
2) current anomaly class failure: including undercurrent and cutout failure；
3) meter exception class failure: stop to walk failure including electric energy meter.
Further, the criterion of the automatic alarm of the failure exception includes:
1) electric energy meter is stopped to walk failure:
(1) Rule of judgment:
a)IA> IIt rises；Or IB> IIt risesOr IC> IIt rises,
b)Y1+=...=Yi+=...=Y5760+, and Y1-=...=Yi-=...=Y5760-；
Wherein Yi+、Yi-Respectively indicate positive active total electricity and reversed active total electricity；
(2) judge process:
The primary electricity consumption data including electric current, voltage, electricity of acquisition in 15 seconds, introduces 0-1 variable ti, for indicating i
Whether moment acquired electric current, voltage meet failure exception Rule of judgment,
When
Y5760+-Y1+=0, Y5760--Y1-=0；
Then alarm；
2) for under-voltage abnormal failure:
(1) Rule of judgment:
A)IA> IIt rises, UA< 78%Un；
Or IB> IIt rises, UB< 78%Un；
Or IC> IIt rises, UC< 78%Un；
B) >=5 N；
Wherein, N is times of collection；
(2) judge process:
WhenThen alarm；
3) for full decompression abnormal failure:
(1) Rule of judgment:
A)UA< 60%Un, and UB< 60%Un, and UC< 60%Un；
B)IA> 5%Ib；Or IB> 5%Ib；Or IC> 5%Ib；
C) >=5 N；
(2) judge process:
WhenThen alarm；
4) for the phase abnormal failure that breaks:
(1) Rule of judgment:
a)IA< IIt rises, UA< 60%Un；
Or IB< IIt rises, UB< 60%Un；
Or IC< IIt rises, UC< 60%Un；
A) >=5 N；
(2) judge process:
WhenThen alarm；
5) for undercurrent abnormal failure:
(1) Rule of judgment
a)UA> 60%Un, UB> 60%Un, UC> 60%Un；
b)IA< IIt rises, IB> 5%Ib, IC> 5%Ib；
Or IB< IIt rises, IA> 5%Ib, IC> 5%Ib；
Or IC< IIt rises, IA> 5%Ib, IB> 5%Ib；
Or IA< IIt rises, IB< IIt rises, IC> 5%Ib；
Or IB< IIt rises, IC< IIt rises, IA> 5%Ib；
Or IA< IIt rises, IC< IIt rises, IB> 5%Ib；
C) >=5 N；
(2) judge process:
WhenThen alarm；
6) for the abnormal failure that stops:
(1) Rule of judgment:
a)IA1=IA2=...=IA5761=0；
Or IB1=IB2=...=IB5761=0；
Or IC1=IC2=...=IC5761=0；
b)UA> 60%Un, UB> 60%Un, UC> 60%Un；
C) >=5761 N；
(2) judge process:
WhenThen alarm.
Automatic alarm platform is to realize following function described in the technical program:
1) data call survey together: data call survey together to realize acquisition and parsing to acquisition terminal electricity consumption data, including instantaneous electricity
It is pressure, transient current, positive/negative to active energy and end message；End message includes at least terminal address code, terminal address and system
Make producer；
2) fault alarm: the function that automatic alarm platform is reminded to realize multiplexing electric abnormality automatic failure alarm, it is automatic to report
Alert alarm form includes at least image alarm, word alarm, SMS alarm and Email type of alarm；
The multiplexing electric abnormality failure of alarm include at least electric energy meter stop walking failure, under-voltage abnormal failure, full decompression abnormal failure,
Disconnected phase abnormal failure, undercurrent abnormal failure and cutout abnormal failure；
3) data sheet: data sheet function to realize to data information check and the statistical analysis of data, include
Anomaly statistics and analytical statement；
4) system administration: system administration includes at least system clock synchronization, rights management, exception management and safety management.
Strengthened research is carried out to power information acquisition system data collected described in the technical program, is included at least
The real-time early warning of Electricity customers multiplexing electric abnormality and the intelligent diagnostics of fault type provide judgement for engineers and technicians scene defect elimination
Foundation and data supporting promote acquisition terminal defect elimination efficiency from technological means and dispatcher utilize automatic alarm daily
Platform monitoring user power utilization situation, and defect elimination work worksheet processing is carried out according to abnormal alarm information, fast implement acquisition terminal failure
Defect elimination work.
Compared with the prior art, the invention has the advantages that
1. intelligent diagnostics provide foundation for metering loss:
According to electricity consumption datas such as voltage, electric current, electricity, database presets the judgment models of various multiplexing electric abnormalities, to electric energy
The monitoring of table and terminal operating operating condition, can measure the generation of abnormal conditions with intelligent decision, and system will record multiplexing electric abnormality failure
Relevant information, occur time, can be used as metering loss correction foundation；
2. automatic early-warning realizes that multiplexing electric abnormality is found in real time:
System judges abnormal conditions according to the monitoring to user's items voltage, electric current, and issues early warning letter in first time
Number, power information acquisition group staff is reminded in the form of text, figure etc., shortens the discovery time of equipment fault problem,
It realizes multiplexing electric abnormality situation to find in real time, lay a good foundation to promote defect elimination working efficiency；
3. process optimization, lifting means defect elimination working efficiency:
System real-time early warning multiplexing electric abnormality, power information acquisition group staff according to the multiplexing electric abnormality type of early warning, into
The judgement of row fault type, and terminal abnormal information is recorded, by system auto form delivering, change traditional artificial inspection discovery event
The defect elimination mode of barrier problem optimizes existing defect elimination process, realizes terminal fault and find in real time, timely defect elimination；Pass through simultaneously
To the intelligent decision of abnormal failure, reduces the outgoing work of unnecessary supervision of power consumption personnel, reduce cost of labor, improve
The working efficiency of elimination of equipment defect；
4. institutional improvement improves defect elimination management level:
To in the management process of defect elimination work, on the one hand from management view, the job duty of each organization department is specified, and tie
Defect elimination operation flow is closed, evaluation method is established, specification and requirement have been carried out to the work of each organization department, perfect defect elimination management
System；On the other hand the time that the audit with automatic alarm platform to abnormal defect elimination, recording exceptional pre-warning time and defect elimination are completed,
The consumed time of each teams and groups' multiplexing electric abnormality defect elimination is calculated from technological means, provides number for each department's defect elimination job rating
According to foundation, defect elimination management level is effectively improved；
5. anomaly statistics improve the supervision to transgression for using electricity:
The daily omnifarious stealing mode up to more than 70 of user, main stealing mode has in multiplexing electric abnormality: losing
Pressure, it is under-voltage, break it is equal, by the automatic early-warning and intelligent decision to these multiplexing electric abnormalities, and to user power utilization abnormal conditions into
Row statistical analysis, and the statistics of live defect elimination work combine, and the suspicious use of effective transgression for using electricity can be provided for power utility check
Name in an account book list realizes supervision to transgression for using electricity user, promotes transgression for using electricity investigation rate, to reduce enterprise's electricity sales amount and the electricity charge
Loss；
6. providing practical basis for power information acquisition system strengthened research:
By the real example application to multiple special transformer acquisition terminals, can be achieved for multiplexing electric abnormality auto-alarm function is demonstrated
Property, while by the intelligent diagnostics of multiplexing electric abnormality, foundation is provided for defect elimination work.For the function of power information acquisition system in future
It can expand and the analysis and utilization of power information data provides practical basis, be established for the strengthened research of power information acquisition system
Research foundation.
Detailed description of the invention
Fig. 1 is that certain power supply company collection copies acquisition client's composition schematic diagram；
Fig. 2 is the composed structure schematic diagram of existing power information acquisition system；
Fig. 3 is the physical structure schematic diagram of multiplexing electric abnormality situation automatic alarm system of the present invention；
Fig. 4 is the logical architecture schematic diagram of multiplexing electric abnormality situation automatic alarm system of the present invention；
Fig. 5 is that electric energy meter stops walking and abnormal judges flow diagram；
Fig. 6 is that under-voltage abnormal alarm judges flow diagram；
Fig. 7 is that full decompression abnormal alarm judges flow diagram；
Fig. 8 is disconnected mutually abnormal alarm decision flow diagram；
Fig. 9 is that undercurrent abnormal alarm judges flow diagram；
Figure 10 is that cutout abnormal alarm judges flow diagram.
Wherein, 1 is acquisition terminal, and 2 be data server, and 3 be WEB server, and 4 be PC machine, and 5 be Intra-Network switch.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Power user power consumption information acquisition system is that the power information of power consumer is acquired, handles and is monitored in real time
System, realize the automatic collection of power information, metering exception monitoring, electric energy quality monitoring, electrical energy consumption analysis and management, related believe
The functions such as breath is issued, distributed energy monitors, the information exchange of intelligent power equipment.
Power information acquisition system is made of main website, communication channel, acquisition equipment three parts, composed structure such as Fig. 2 institute
Show.
Wherein, main station system is by database server, disk array, application server, front server, interface service
Device, work station, global positioning system (GPS) clock, firewall and relevant network equipment composition, main finishing service are answered
With functions such as the acquisition of, data, control execution, preposition communication scheduling, data base administrations.
Communication channel is for the remote data communication between system main website and acquisition terminal, including optical fiber private network, 230MHz
Wireless private network, Universal Wireless Packet Service/CDMA (GPRS/CDMA) wireless public network etc..
Acquisition equipment is mounted in the terminal and measuring equipment at scene, is responsible for collecting and providing the original electricity consumption of whole system
Information, including special transformer acquisition terminal, concentrator, collector and intelligent electric energy meter etc..
The main acquisition and recording electricity data of existing power information acquisition system power information acquisition system, event data and wink
When voltage, current data etc., it is huge although can use power information to analyze user's electric energy metering device operating condition
Acquisition data only manually analyze and screening exception information needed for spend time be it is considerably long, cause failure problems cannot and
Shi Faxian reduces the working efficiency of failure defect elimination；The case where having leakage defect elimination when defect elimination larger workload simultaneously, drop
The management level of low electric power consumption acquisition system device end.
In Fig. 3 and Fig. 4, it is automatic to provide a kind of non-resident user power utilization abnormal conditions of low pressure for technical solution of the present invention
Alarm system, including being sequentially connected the power information acquisition system constituted by main website, communication channel, acquisition equipment；Its inventive point
It is:
For the non-resident user of each 50KW or more low pressure, a special transformer acquisition terminal is set, to become user to special
The equipment that power information is acquired, responsible electric energy meter data acquisition, electric energy measuring equipment operating condition and power quality monitoring,
Customer electricity load and electric energy monitor, and acquisition data are managed and transmitted in both directions；
One multiplexing electric abnormality automatic alarm platform is set in main website, for carrying out data parsing to acquisition data, according to
The fault alarm criterion of setting is monitored in real time, is carried out being automatically reminded to early warning to there is the case where multiplexing electric abnormality, is realized electricity consumption
The function of abnormal automatic early-warning, so that engineers and technicians can carry out defect elimination work to faulty equipment in time；
The automatic alarm system, by constructing data Layer, supporting layer, logical layer and exhibition based on special transformer acquisition terminal
Show layer, to realize the automatic alarm of the non-resident user power utilization abnormal conditions of low pressure；
Data Layer, supporting layer, logical layer and the presentation layer constitutes one four layers of application logicframework；
Wherein, data Layer includes the system database of power user power consumption information acquisition system；Supporting layer includes based on special
The data acquisition for becoming acquisition terminal and the data access between each special transformer acquisition terminal and main website；
Logical layer judges failure according to the fault alarm criterion of setting；
Represent layer is the part of main website oriented manipulation user, includes at least acquisition data list, fault alarm prompt and column
Table and data statistics analytical statement；
The automatic alarm system, for realizing multiplexing electric abnormality automatic failure alarm remind function, include at least pair
The automatic alarm of multiplexing electric abnormality failure carries out strengthened research to power information acquisition system data collected to realize.
Special transformer acquisition terminal in the technical program is to be responsible for electricity to the special equipment for becoming user power utilization information and being acquired
The acquisition of energy table data, electric energy measuring equipment operating condition and power quality monitoring, customer electricity load and electric energy monitor, and it is right
Acquisition data are managed and transmitted in both directions.Its function mainly has:
1) data communication:
This mainly include two aspect, one be terminal and main website communication, communication need to meet state's net power consumer
Power information acquisition system communication protocol part 1: the requirement of main website and acquisition terminal communication protocol；One is terminal and electric energy
Electric energy meter data are copied and accepted and stored to the communication of table RS485 by the interval of copying and accepting of setting；It can receive the data forwarding life of main website
It enables, the data of electric energy meter is transferred directly to main website by telepak.
2) data acquire:
Power information acquisition and storage is the most basic function of acquisition system, and special transformer terminals utilize downstream communication ports
RS485 is communicated with electric energy meter, is received the data sent on electric energy meter, is realized the acquisition of power information.The electricity consumption data type of acquisition
It is broadly divided into following several:
Load class: instantaneously instantaneously average there is (no) function power etc. there is (no) function power, 15min there is (no) function power, each phase；
Electricity class: forward and reverse forward and reverse there is (no) the total electric energy indicating value of function, all quadrants there is (no) the total electric energy indicating value of function, each rate
It is (each rate) reactive energy indicating value, maximum demand, each mutually forward and reverse there is (no) function electric energy indicating value etc.；
AC sampling class: electric current, voltage, power factor of each phase etc.；
Power quality class: voltage out-of-limit number and time of origin, tri-phase unbalance factor, harmonic voltage containing rate etc.；
Operating condition class: switch state, terminal protect electricity condition, gate inhibition's state, capacitor switching state etc.；
Logout class: disconnected phase number and time, overload ratio etc.；
Line loss calculation class: each area's line loss calculation data and its Qualification data；
Other data types: meter and terminal clock error, rate of load condensate etc..
3) data processing:
It according to the data that electric energy meter acquires, is parsed by specification, the energy information of analysis electric energy meter acquisition.By system point
After analysis, critical event can be reported main website by system；Warning message is shown and carries out relevant output control, final system is pressed
Memory Allocation when according to initialization, stores related data.
4) load control system:
Special transformer terminals execute tripping automatically, realize load by receiving the control command of main website according to order setting parameter
It is long-range control etc. functions；After execution, issues the sound (or voice) and remind client, client is allowed to close a floodgate.
5) maintenance function:
Have USB interface and maintenance RS-232 interface, is used for data backup and upgrade maintenance, program, parameter etc. can also lead to
It crosses wirelessly or non-wirelessly channel and carries out remote upgrade and maintenance.
Fig. 5 gives electric energy meter in multiplexing electric abnormality automatic alarm platform and stops walking abnormal judgement process.
Specifically, stopping to walk failure for electric energy meter:
(1) fault definition:
In the case of practical electricity consumption, within one day, electric energy meter has current work (any phase current is greater than starting current), still
The indicating value of electric energy meter is constant (i.e. the positive active total electricity difference of electric energy meter and reversed active energy difference are 0), then belongs to electricity
Energy table stops walking exception.
It requires to determine according to the starting test of electric energy meter, starting current IIt rises=Ib (In) * X, wherein Ib is fundamental current；Such as
Fruit is to be directly accessed, then X=0.4%；Mutual inductor access in this way, the X=0.1% of X=0.2%, 0.5S grade of 1.0 grades of tables.
(2) Rule of judgment:
c)IA> IIt rises；Or IB> IIt risesOr IC> IIt rises,
d)Y1+=...=Yi+=...=Y5760+, and Y1-=...=Yi-=...=Y5760-；
Wherein Yi+、Yi-Respectively indicate positive active total electricity and reversed active total electricity；
(3) judge process:
Electricity consumption data of acquisition in 15 seconds (including electric current, voltage, electricity), introduces 0-1 variable ti, for indicating the i moment
Whether acquired electric current, voltage meet failure exception Rule of judgment,
When
Y5760+-Y1+=0, Y5760--Y1-=0；
Then alarm.
Fig. 6 gives the judgement process of under-voltage abnormal alarm in multiplexing electric abnormality automatic alarm platform.
Specifically, for under-voltage abnormal failure:
(1) fault definition:
Under-voltage to refer in three-phase power supply system, certain phase load electric current is greater than starting current, but the voltage of voltage circuit is low
When the 78% of electric energy meter reference voltage, and the duration is greater than 60 seconds operating conditions.Wherein reference voltage Un, such as 3*380V/
220V takes 220；According to frequency acquisition, acquisition in every 15 seconds is primary, is that times of collection N is at least 5 times greater than 60 seconds.
(2) Rule of judgment:
b)IA> IIt rises, UA< 78%Un；
Or IB> IIt rises, UB< 78%Un；
Or IC> IIt rises, UC< 78%Un；
C) >=5 N；
(3) judge process:
WhenThen alarm (tiIt is defined as above, similarly hereinafter).
Fig. 7 gives the full decompression abnormal alarm in multiplexing electric abnormality automatic alarm platform and judges process.
Specifically, for full decompression abnormal failure:
(1) fault definition:
If three-phase voltage is below the reference voltage (60%) of electric energy meter, it is basic that an at least phase load electric current is greater than 5%
When electric current, and the duration at 60 seconds or more, can work regardless of electric energy meter, complete be all recorded as decompression.
(2) Rule of judgment:
a)UA< 60%Un, and UB< 60%Un, and UC< 60%Un；
b)IA> 5%Ib；Or IB> 5%Ib；Or IC> 5%Ib；
C) >=5 N；(N with being defined in 3.2.2.2, similarly hereinafter)
(3) judge process:
WhenThen alarm.
Fig. 8 gives the judgement process of multiplexing electric abnormality automatic alarm platform interrupt phase abnormal alarm.
Specifically, for the phase abnormal failure that breaks:
(3) fault definition:
In three-phase power supply system, mutually there is the reference voltage that voltage is lower than electric energy meter in certain, while load current is less than
Streaming current, and the duration is greater than 60 seconds operating conditions, it is referred to as disconnected mutually abnormal.
(4) Rule of judgment:
b)IA< IIt rises, UA< 60%Un；
Or IB< IIt rises, UB< 60%Un；
Or IC< IIt rises, UC< 60%Un；
D) >=5 N；
(5) judge process:
WhenThen alarm.
Fig. 9 gives the judgement process of undercurrent abnormal alarm in multiplexing electric abnormality automatic alarm platform.
Specifically, for undercurrent abnormal failure:
(1) fault definition:
In three-phase power supply system, three-phase voltage is greater than the reference voltage of electric energy meter, any phase or two-phase in three-phase current
Less than starting current, and other phase line load currents be greater than 5% fundamental current, operating condition of the duration at 60 seconds or more, referred to as
Undercurrent is abnormal.
(2) Rule of judgment:
d)UA> 60%Un, UB> 60%Un, UC> 60%Un；
e)IA< IIt rises, IB> 5%Ib, IC> 5%Ib；
Or IB< IIt rises, IA> 5%Ib, IC> 5%Ib；
Or IC< IIt rises, IA> 5%Ib, IB> 5%Ib；
Or IA< IIt rises, IB< IIt rises, IC> 5%Ib；
Or IB< IIt rises, IC< IIt rises, IA> 5%Ib；
Or IA< IIt rises, IC< IIt rises, IB> 5%Ib；
F) >=5 N；
(1) judge process:
WhenThen alarm.
Figure 10 gives the judgement process of multiplexing electric abnormality automatic alarm platform interrupt throat floater alarm.
Specifically, for the abnormal failure that stops:
(3) fault definition:
In three-phase power supply system, three-phase voltage is greater than the reference voltage of electric energy meter, and any phase current is in three-phase current
0, and the duration is more than 24 hours, then it is abnormal to belong to cutout.
(4) Rule of judgment:
d)IA1=IA2=...=IA5761=0；
Or IB1=IB2=...=IB5761=0；
Or IC1=IC2=...=IC5761=0；
e)UA> 60%Un, UB> 60%Un, UC> 60%Un；
F) >=5761 N；
(5) judge process:
WhenThen alarm.
In order to verify the effect of technical solution of the present invention, 50 special transformer acquisition terminals are had chosen as pilot sample, are realized
With the data communication function and automatic failure alarm function of special transformer acquisition terminal.
By application in two months, power information acquisition group utilized automatic alarm platform monitoring user power utilization feelings daily
Condition, and worksheet processing is carried out according to abnormal alarm information, realize acquisition terminal failure defect elimination.
In pilot application, the non-resident user power utilization abnormal conditions automatic alarm of 50KW or more low pressure is realized, is optimized
Defect elimination workflow and perfect defect elimination management system, specifically achieve following effect:
1) intelligent diagnostics provide foundation for metering loss:
According to electricity consumption datas such as voltage, electric current, electricity, database presets the judgment models of various multiplexing electric abnormalities, to electric energy
The monitoring of table and terminal operating operating condition, can measure the generation of abnormal conditions with intelligent decision, and system will record multiplexing electric abnormality failure
Relevant information, occur time, can be used as metering loss correction foundation.
2) automatic early-warning realizes that multiplexing electric abnormality is found in real time:
System judges abnormal conditions according to the monitoring to user's items voltage, electric current, and issues early warning letter in first time
Number, power information acquisition group staff is reminded in the form of text, figure etc., shortens the discovery time of equipment fault problem,
It realizes multiplexing electric abnormality situation to find in real time, lay a good foundation to promote defect elimination working efficiency.
3) process optimization, lifting means defect elimination working efficiency:
System real-time early warning multiplexing electric abnormality, power information acquisition group staff according to the multiplexing electric abnormality type of early warning, into
The judgement of row fault type, and terminal abnormal information is recorded, by system auto form delivering, change traditional artificial inspection discovery event
The defect elimination mode of barrier problem optimizes existing defect elimination process, realizes terminal fault and find in real time, timely defect elimination；Pass through simultaneously
To the intelligent decision of abnormal failure, reduces the outgoing work of unnecessary supervision of power consumption personnel, reduce cost of labor, improve
The working efficiency of elimination of equipment defect.
4) institutional improvement improves defect elimination management level:
To in the management process of defect elimination work, on the one hand from management view, the job duty of each organization department is specified, and tie
Defect elimination operation flow is closed, evaluation method is established, specification and requirement have been carried out to the work of each organization department, perfect defect elimination management
System；On the other hand the time that the audit with automatic alarm platform to abnormal defect elimination, recording exceptional pre-warning time and defect elimination are completed,
The consumed time of each teams and groups' multiplexing electric abnormality defect elimination is calculated from technological means, provides number for each department's defect elimination job rating
According to foundation, defect elimination management level is effectively improved.
5) anomaly statistics improve the supervision to transgression for using electricity:
The daily omnifarious stealing mode up to more than 70 of user, main stealing mode has in multiplexing electric abnormality: losing
Pressure, it is under-voltage, break it is equal, by the automatic early-warning and intelligent decision to these multiplexing electric abnormalities, and to user power utilization abnormal conditions into
Row statistical analysis, and the statistics of live defect elimination work combine, and the suspicious use of effective transgression for using electricity can be provided for power utility check
Name in an account book list realizes supervision to transgression for using electricity user, promotes transgression for using electricity investigation rate, to reduce enterprise's electricity sales amount and the electricity charge
Loss.
6) practical basis is provided for power information acquisition system strengthened research:
By the real example application of 50 special transformer acquisition terminals, the realizability of multiplexing electric abnormality auto-alarm function is demonstrated,
Simultaneously by the intelligent diagnostics of multiplexing electric abnormality, foundation is provided for defect elimination work.For the function of power information acquisition system in future
It expands and the analysis and utilization of power information data provides practical basis, established for the strengthened research of power information acquisition system
Research foundation.
Technical solution of the present invention establishes multiplexing electric abnormality using the non-resident user power utilization situation of low pressure as emphasis monitored object
Automatic alarm platform sets the database judgment basis of fault alarm, and realization is automatically reminded to early warning to multiplexing electric abnormality, thus real
Failure defect elimination now is promoted as the reference frame of engineers and technicians' site inspection to the timely discovery of electrical equipment failure
Working efficiency and investigation rate to transgression for using electricity ultimately help the promotion for realizing power supply company's management level.
It invention can be widely used in the power supply management field of block supply company.
Claims (10)
1. a kind of non-resident user power utilization abnormal conditions automatic alarm system of low pressure, including by main website, communication channel, acquisition equipment
It is sequentially connected the power information acquisition system of composition；It is characterized in that:
For the non-resident user of each 50KW or more low pressure, a special transformer acquisition terminal is set, to become user power utilization to special
The equipment that information is acquired is responsible for electric energy meter data acquisition, electric energy measuring equipment operating condition and power quality monitoring, client
Power load and electric energy monitor, and acquisition data are managed and transmitted in both directions；
One multiplexing electric abnormality automatic alarm platform is set in main website, for carrying out data parsing to acquisition data, according to setting
Fault alarm criterion monitored in real time, be automatically reminded to early warning to there is the case where multiplexing electric abnormality, realize multiplexing electric abnormality
The function of automatic early-warning, so that engineers and technicians can carry out defect elimination work to faulty equipment in time；
The automatic alarm system, by constructing data Layer, supporting layer, logical layer and displaying based on special transformer acquisition terminal
Layer, to realize the automatic alarm of the non-resident user power utilization abnormal conditions of low pressure；
Data Layer, supporting layer, logical layer and the presentation layer constitutes one four layers of application logicframework；
Wherein, data Layer includes the system database of power user power consumption information acquisition system；Supporting layer includes being adopted based on specially change
The data acquisition for collecting terminal and the data access between each special transformer acquisition terminal and main website；
Logical layer judges failure according to the fault alarm criterion of setting；
Represent layer is the part of main website oriented manipulation user, include at least acquisition data list, fault alarm prompt and list and
Data statistic analysis report；
The automatic alarm system includes at least for realizing the function that multiplexing electric abnormality automatic failure alarm is reminded to electricity consumption
The automatic alarm of abnormal failure carries out strengthened research to power information acquisition system data collected to realize.
2. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
Special transformer acquisition terminal real-time electricity consumption data collected, including at least terminal device address code, installation addresses, device type, is adopted
Collect time, three-phase voltage, electric current and electricity.
3. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
Special transformer acquisition terminal be the equipment being acquired to the non-resident user power utilization information of low pressure, be responsible for electric energy meter data acquisition, electricity
Energy measuring equipment operating condition and power quality monitoring, customer electricity load and electric energy monitor, and pipe is carried out to acquisition data
Reason and transmitted in both directions.
4. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
The function of special transformer acquisition terminal includes:
1) data communication:
Communication including special transformer acquisition terminal and main website, the communication of special transformer acquisition terminal and electric energy meter RS485；
2) data acquire:
Special transformer acquisition terminal is communicated using downstream communication ports RS485 with electric energy meter, and the data sent on electric energy meter are received, and is realized and is used
The acquisition of power information；
3) data processing
It according to the data that electric energy meter acquires, is parsed by specification, the energy information of analysis electric energy meter acquisition.By network analysis it
Afterwards, critical event is reported into main website；Warning message is shown and carries out relevant output control, when final system is according to initialization
Memory Allocation, store related data:
4) load control system:
Special transformer acquisition terminal executes tripping automatically, realizes load by receiving the control command of main website according to order setting parameter
It is long-range control etc. functions；After execution, issues the sound or voice messaging reminds client, client is allowed to close a floodgate.
5. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
The communication protocol that MESSAGE EXCHANGE is carried out between automatic alarm platform and special transformer acquisition terminal meets following transmission rule:
A) line idle state is binary one；
B) without route idle interval between the character of frame；Line idle interval between two frames at least needs 33；
C) as by mistake e) has been detected, the line idle interval between two frames at least needs 33；
D) frame check and (CS) are the arithmetic sums of the eight-bit group of user data area, do not consider carry digit；
E) recipient verifies:
For each character: verification start bit, stop position, even parity bit；
For every frame: examining the beginning in the fixation heading of frame and terminate the character and specification marker of defined；Identification 2
A length L；Every received number of characters of frame is User Data Length L1+8；Have frame check and；There is termination character；Verify out a difference
It staggers the time, verification is by line idle interval c)；If these verifications have a failure, give up this frame；If zero defect, this frame data
Effectively.
6. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
Automatic alarm system alarm indication is carried out by following rule for the multiplexing electric abnormality event of automatic alarm:
1) same event avoids repeating to report, and event content includes that event, terminal address and Exception Type are identical,
In period for every eight hours, only retain first.
2) the obvious wrong event of content is rejected, including when event time is later than current earlier than equipment set-up time and event time
Between situation after k days, k recommended value therein is 3.
7. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
Automatic alarm system, the automatic alarm of following 6 kinds of failure exceptions is realized on multiplexing electric abnormality automatic alarm platform:
1) electric voltage exception class failure: including under-voltage, decompression and open phase fault；
2) current anomaly class failure: including undercurrent and cutout failure；
3) meter exception class failure: stop to walk failure including electric energy meter.
8. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure according to claim 7, it is characterized in that described
The criterion of the automatic alarm of failure exception includes:
1) electric energy meter is stopped to walk failure:
(1) Rule of judgment:
a)IA> IIt rises；Or IB> IIt risesOr IC> IIt rises,
b)Y1+=...=Yi+=...=Y5760+, and Y1-=...=Yi-=...=Y5760-；
Wherein Yi+、Yi-Respectively indicate positive active total electricity and reversed active total electricity；
(2) judge process:
The primary electricity consumption data including electric current, voltage, electricity of acquisition in 15 seconds, introduces 0-1 variable ti, for indicating i moment institute
Whether acquisition electric current, voltage meet failure exception Rule of judgment,
When
Y5760+-Y1+=0, Y5760--Y1-=0；
Then alarm；
2) for under-voltage abnormal failure:
(1) Rule of judgment:
A)IA> IIt rises, UA< 78%Un；
Or IB> IIt rises, UB< 78%Un；
Or IC> IIt rises, UC< 78%Un；
B) >=5 N；
Wherein, N is times of collection；
(2) judge process:
WhenThen alarm；
3) for full decompression abnormal failure:
(1) Rule of judgment:
A)UA< 60%Un, and UB< 60%Un, and UC< 60%Un；
B)IA> 5%Ib；Or IB> 5%Ib；Or IC> 5%Ib；
C) >=5 N；
(2) judge process:
WhenThen alarm；
4) for the phase abnormal failure that breaks:
(1) Rule of judgment:
a)IA< IIt rises, UA< 60%Un；
Or IB< IIt rises, UB< 60%Un；
Or IC< IIt rises, UC< 60%Un；
A) >=5 N；
(2) judge process:
WhenThen alarm；
5) for undercurrent abnormal failure:
(1) Rule of judgment
a)UA> 60%Un, UB> 60%Un, UC> 60%Un；
b)IA< IIt rises, IB> 5%Ib, IC> 5%Ib；
Or IB< IIt rises, IA> 5%Ib, IC> 5%Ib；
Or IC< IIt rises, IA> 5%Ib, IB> 5%Ib；
Or IA< IIt rises, IB< IIt rises, IC> 5%Ib；
Or IB< IIt rises, IC< IIt rises, IA> 5%Ib；
Or IA< IIt rises, IC< IIt rises, IB> 5%Ib；
C) >=5 N；
(2) judge process:
WhenThen alarm；
6) for the abnormal failure that stops:
(1) Rule of judgment:
a)IA1=IA2=...=IA5761=0；
Or IB1=IB2=...=IB5761=0；
Or IC1=IC2=...=IC5761=0；
b)UA> 60%Un, UB> 60%Un, UC> 60%Un；
C) >=5761 N；
(2) judge process:
WhenThen alarm.
9. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
Automatic alarm platform to realize following function:
1) data call survey together: data call survey together to realize acquisition and parsing to acquisition terminal electricity consumption data, including instantaneous voltage, wink
When electric current, positive/negative to active energy and end message；End message includes at least terminal address code, terminal address and manufactory
Family；
2) fault alarm: the function that automatic alarm platform is reminded to realize multiplexing electric abnormality automatic failure alarm, automatic alarm
Alarm form includes at least image alarm, word alarm, SMS alarm and Email type of alarm；
The multiplexing electric abnormality failure of alarm includes at least electric energy meter and stops walking failure, under-voltage abnormal failure, full decompression abnormal failure, disconnected phase
Abnormal failure, undercurrent abnormal failure and cutout abnormal failure；
3) data sheet: data sheet function to realize to data information check and the statistical analysis of data, comprising abnormal
Statistics and analysis report；
4) system administration: system administration includes at least system clock synchronization, rights management, exception management and safety management.
10. the non-resident user power utilization abnormal conditions automatic alarm system of low pressure described in accordance with the claim 1, it is characterized in that described
To power information acquisition system data collected carry out strengthened research, including at least the real-time pre- of Electricity customers multiplexing electric abnormality
Alert and fault type intelligent diagnostics, provide judgment basis and data supporting for engineers and technicians scene defect elimination, from technology hand
Acquisition terminal defect elimination efficiency is promoted in section and dispatcher utilizes automatic alarm platform monitoring user power utilization situation daily, and
Defect elimination work worksheet processing is carried out according to abnormal alarm information, fast implements the work of acquisition terminal failure defect elimination.
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Application publication date: 20190215 |