CN106018947A - Electrical energy metering system and method - Google Patents

Electrical energy metering system and method Download PDF

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Publication number
CN106018947A
CN106018947A CN201610479750.0A CN201610479750A CN106018947A CN 106018947 A CN106018947 A CN 106018947A CN 201610479750 A CN201610479750 A CN 201610479750A CN 106018947 A CN106018947 A CN 106018947A
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CN
China
Prior art keywords
electric energy
data
transmission
harvester
energy meter
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Application number
CN201610479750.0A
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Chinese (zh)
Inventor
陈岳
林克灵
张胜
蔡延雷
王旭峰
阎帅
杨凤欣
Original Assignee
中国南方电网有限责任公司超高压输电公司检修试验中心
北京煜邦电力技术股份有限公司
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Application filed by 中国南方电网有限责任公司超高压输电公司检修试验中心, 北京煜邦电力技术股份有限公司 filed Critical 中国南方电网有限责任公司超高压输电公司检修试验中心
Priority to CN201610479750.0A priority Critical patent/CN106018947A/en
Publication of CN106018947A publication Critical patent/CN106018947A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00Arrangements for measuring time integral of electric power or current, e.g. by electricity meters

Abstract

The embodiment of the invention discloses an electrical energy metering system and method. The electrical energy metering system comprises an electrical energy metering unit, an electrical energy data acquisition unit, an electrical energy data transmission unit and a data processing main station unit, wherein the electrical energy metering unit comprises at least two electric energy meters for metering electrical energy of a same metering point, the electrical energy data acquisition unit comprises at least two gatherers which are respectively connected with the two electric energy meters to read the electrical energy data in the electric energy meters, the electrical energy data transmission unit comprises at least two transmission channels which are respectively connected with the gatherers to provide communication links for the electrical energy data, and the data processing main station unit is connected with the at least two transmission channels to receive the electrical energy data and process the electrical energy data. Stable and reliable obtaining complete electrical energy data is realized.

Description

Electric energy metering system and method
Technical field
The present embodiments relate to electric energy data process field, particularly relate to a kind of electric energy metering system and Method.
Background technology
Electrical energy metering is the important component part of field of power distribution.Along with the deep development of electricity marketization, electricity Power company constantly promotes management and the technical merit of oneself, and electric energy data is as the weight of support the market decision-making Will foundation, the effect in electricity market application process is more and more important.Therefore, the most quickly and stably Obtain complete electric energy data to be particularly important.
Electric energy metering system be capable of the automatic collection of electric energy data, counting statistics, in-depth analysis and Prediction, for Utilities Electric Co. decision-making, produce important data supporting be provided.But electric energy of the prior art The defect of consumption metering system universal existence and stability difference, the system main website of causing can not stably gather electric flux number According to, cause electric energy data to lack, it is impossible to normally to carry out electric flux business, cause the biggest impact.
Therefore, it is necessary to existing electric energy metering system is improved.
Summary of the invention
Embodiments provide a kind of electric energy metering system and method, complete reliablely and stablely to obtain Electric energy data.
First aspect, embodiments provides a kind of electric energy metering system, and this system includes:
Electrical energy metering unit, data acquisition for electric energy unit, electric energy data transmission unit and data process Main station unit, wherein:
Described electrical energy metering unit includes at least two electric energy meter, for entering the electric flux of identical stoichiometric point Row metering;
Described data acquisition for electric energy unit includes at least two harvester, each harvester and described at least two Individual electric energy meter is respectively connected with, for reading the electric energy data in described electric energy meter;
Described electric energy data transmission unit includes at least two transmission channels, described at least two transmission channels It is connected with described harvester respectively, for providing communication link for described electric energy data;
Described data process main station unit and are connected with described at least two transmission channels, are used for receiving described electric energy Amount data, and described electric energy data is processed.
Preferably, described electric energy meter is the electric energy meter with double RS-485 communication serial ports.
Exemplarily, one of them harvester in described at least two harvester and the first of described electric energy meter Individual RS-485 communication serial ports is connected, for being read by first RS-485 communication serial ports of described electric energy meter The electric energy data of described electric energy meter, remaining harvester and described electric energy meter in described at least two harvester Second RS-485 communication serial ports be connected, for by second RS-485 communication string of described electric energy meter Mouth reads the electric energy data of described electric energy meter.
Further, described at least two transmission channels include:
MSTP (Multi-Service Transfer Platform, multi-service transport platform) passage and scheduling data Netcom road.
Second aspect, the embodiment of the present invention additionally provides a kind of electrical energy metering method, by above-mentioned electric energy gauge Amount system performs, and the method includes:
By at least two electric energy meter, the electric flux of same stoichiometric point is carried out real time measure;
The electric energy data in described electric energy meter is read according to setpoint frequency by least two harvester;
Described electric energy data is sent to data by least two transmission channels and processes main station unit, for Data process main station unit and process described electric energy data.
Further, described by described electric energy data by least two transmission channels be sent to data process Main station unit, including:
Main transmission channel is selected to carry out the electric energy data transmission of current period;
Judge that transmission is the most successful, the most then by main transmission channel, the electric energy data of current period is entered Row transmission, after the electric energy data of current period is transmitted, terminates the communication of current period, under wait The communication in one cycle;
Otherwise, it is judged that whether the number of times of bust this exceedes setting threshold value, if then selecting secondary transmission channel to enter The electric energy data transmission of row current period, otherwise continues the electric energy selecting main transmission channel to carry out current period Amount data transmission;Wherein said main transmission channel is at least two transmission described in electric energy data transmission unit In passage wherein one, described secondary transmission channel is at least two biographies described in electric energy data transmission unit In defeated passage wherein one.
A kind of electric energy metering system that the embodiment of the present invention provides, by configuring at least at each stoichiometric point Two electric energy meters, it is ensured that when one of them electric energy meter breaks down, it is also possible to utilize another electric energy meter The electric flux of stoichiometric point is measured;By configuring at least two harvester, and each harvester is with described At least two electric energy meter is respectively connected with, it is ensured that when one of them harvester breaks down, it is also possible to utilize Another harvester reads the electric energy data in described electric energy meter;By configuring at least two transmission channels, And described at least two transmission channels are connected with described harvester respectively, it is ensured that the electric flux number in harvester Process main station unit according to can reliablely and stablely send data to, process main station unit to described electricity for data Energy datum processes.
Accompanying drawing explanation
A kind of electric energy metering system schematic diagram that Fig. 1 provides for the embodiment of the present invention one;
A kind of electrical energy metering method flow diagram that Fig. 2 provides for the embodiment of the present invention two;
A kind of data communications method flow chart that Fig. 3 provides for the embodiment of the present invention two.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this Specific embodiment described by place is used only for explaining the present invention, rather than limitation of the invention.The most also need It is noted that for the ease of describing, accompanying drawing illustrate only part related to the present invention and not all knot Structure.
It should be mentioned that, some exemplary embodiment quilts before being discussed in greater detail exemplary embodiment It is described as process or the method described as flow chart.Although every step is described as the place of order by flow chart Reason, but many of which step can be implemented concurrently, concomitantly or simultaneously.Additionally, every step Rapid order can be rearranged.When its step completes, described process can be terminated, it is also possible to There is the additional step being not included in accompanying drawing.Described process can correspond to method, function, code, son Routine, subprogram etc..
Embodiment one
A kind of electric energy metering system schematic diagram that Fig. 1 provides for the embodiment of the present invention one, the present embodiment can be fitted The situation of electric flux process is carried out for the electric flux of stoichiometric point being measured and being sent to main website server, Seeing Fig. 1, described system specifically includes as follows:
Electrical energy metering unit 110, data acquisition for electric energy unit 120, electric energy data transmission unit 130 Main station unit 140 is processed, wherein with data:
Electrical energy metering unit 110 includes at least two electric energy meter, in the present embodiment as a example by two electric energy meters Illustrate, be designated as main electric energy meter 111 and secondary electric energy meter 112, main electric energy meter 111 and secondary electric energy meter respectively 112 are all used for measuring the electric flux of same stoichiometric point, when main electric energy meter 111 breaks down, Secondary electric energy meter 112 can also normally work, and does not interferes with the metering of the electric flux to stoichiometric point.
Data acquisition for electric energy unit 120 includes at least two harvester, with two harvesters in the present embodiment As a example by illustrate, be designated as main harvester 121 and secondary harvester 122, main harvester 121 and main electricity respectively Can be respectively connected with secondary electric energy meter 112 by table 111, secondary harvester 122 and main electric energy meter 111 and secondary electric energy meter 112 are respectively connected with, for reading the electric energy data in main electric energy meter 111 and secondary electric energy meter 112.Work as master When harvester 121 breaks down, can be completed main electric energy meter 111 and secondary electric energy by secondary harvester 122 The reading of the electric flux in table 112.
By at same stoichiometric point configuration at least two electric energy scale and at least two harvester, would not be because of When one of them electric energy scale or harvester break down, affect data process main station unit 140 and obtain electricity Electric energy data is also processed and manages by energy datum accordingly.
Electric energy data transmission unit 130 includes at least two transmission channels, with two transmission in the present embodiment Illustrate as a example by passage, be designated as main transmission channel 131 and secondary transmission channel 132, main transmission channel respectively 131 are respectively connected with main harvester 121 and secondary harvester 122, secondary transmission channel 132 and main harvester 121 It is respectively connected with secondary harvester 122, for providing communication link for described electric energy data.By configure to Few two transmission channels are that the collection of electric energy data provides redundant channel, it is ensured that the normal acquisition of data.
Data process main station unit 140 and are respectively connected with main transmission channel 131 and secondary transmission channel 132, use In receiving described electric energy data, and described electric energy data is processed.
Typically, data process main station unit 140 and generally include database server, the communication server, net The hardware devices such as site server.Mainly realize the merits such as data acquisition for electric energy, electric flux calculating, event alarm Energy;Wherein:
Data acquisition for electric energy mainly by communicating with main harvester 121, secondary harvester 122, completes The collection of electric energy meter data;
Electric flux calculates and the most automatically calculates electrical energy meter electricity energy;According to electrical energy meter electricity energy relationship, point ground The classified statistic electric fluxs such as district, component voltage grade, power plant's online, power purchase.
Event alarm is mainly electric flux sudden change, harvester time overlength, major-minor electric energy meter electricity, major-minor The abnormal informations such as harvester electric flux sudden change alert.
Preferably, main electric energy meter 111 and secondary electric energy meter 112 can be the electricity with double RS-485 communication serial ports Energy table, described pair of RS-485 communication serial ports can be designated as main serial ports and secondary serial ports respectively.
Accordingly, main harvester 121 respectively with the main serial ports of main electric energy meter 111 and the master of secondary electric energy meter 112 Serial ports is connected, for reading main electric energy by the main serial ports of the main serial ports of electric energy meter 111 and secondary electric energy meter 112 Table 111 and the electric energy data of secondary electric energy meter 112;Secondary harvester 122 respectively with the pair of main electric energy meter 111 Serial ports is connected with the secondary serial ports of secondary electric energy meter 112, for by the secondary serial ports of electric energy meter 111 and secondary electric energy meter The secondary serial ports of 112 reads main electric energy meter 111 and the electric energy data of secondary electric energy meter 112.
It should be understood that same stoichiometric point has main electric energy meter 111 and secondary electric energy meter 112, main electric energy meter 111 Two data are had to use, the data of the most main serial ports and the data of secondary serial ports, same reason, secondary electricity Two data can be had to use by table 112, the data of the most main serial ports and the data of secondary serial ports.Therefore, main The electric energy data that harvester 121 gathers is respectively data D1 of the main serial ports of main electric energy meter 111, secondary electric energy The main serial data D2 of table 112;The electric energy data that secondary harvester 122 gathers is respectively main electric energy meter 111 Secondary serial data D3, the secondary serial data D4 of secondary electric energy meter 112.Therefore, one four electric fluxs are had Data can be used, and under normal circumstances, data process main station unit 140 and use the main serial ports of main electric energy meter 111 Data D1 settle accounts, when data D1 of the main serial ports of main electric energy meter 111 go wrong, can be by The secondary serial data D3 of license-master's electric energy meter 111, the main serial data D2 of secondary electric energy meter 112, secondary electric energy meter The order of the secondary serial data D4 of 112 carries out data replacement, makes electric energy data by such mode Integrity is further ensured that so that electric energy data business is more reliable, for electric flux form and knot The business such as calculation provide more reliable data support.
Preferably, main transmission channel 131 can be multi-service transport platform MSTP passage, secondary transmission channel 132 can be dispatch data net passage.Certain main transmission channel 131 can also be dispatch data net passage, Secondary transmission channel 132 can be multi-service transport platform MSTP passage, and is not limited thereof.
A kind of electric energy metering system that the present embodiment provides, by configuring at least two at each stoichiometric point Electric energy meter, it is ensured that when one of them electric energy meter breaks down, it is also possible to utilize another electric energy meter to meter The electric flux of amount point measures;By configuring at least two harvester, and each harvester with described at least Two electric energy meters are respectively connected with, it is ensured that when one of them harvester breaks down, it is also possible to utilize another Individual harvester reads the electric energy data in described electric energy meter;By configuring at least two transmission channels, and institute State at least two transmission channels to be connected with described harvester respectively, it is ensured that the electric energy data energy in harvester Enough data that reliablely and stablely send to process main station unit, process main station unit to described electric flux for data Data process.
Embodiment two
A kind of electrical energy metering method flow diagram that Fig. 2 provides for the embodiment of the present invention two, the side of the present embodiment The electric energy metering system that method is provided by above-described embodiment performs, and shown in Figure 2, described method is specifically wrapped Include:
210, by least two electric energy meter, the electric flux of same stoichiometric point is carried out real time measure.
Wherein, described electric energy meter can be the main electric energy meter 111 in Fig. 1 and secondary electric energy meter 112.
220, the electric energy data in described electric energy meter is read by least two harvester according to setpoint frequency.
Described harvester can be the main harvester 121 in Fig. 1 and secondary harvester 122.
230, described electric energy data is sent to data by least two transmission channels and processes main station unit 140, process main station unit 140 for data and described electric energy data is processed.
Described at least two transmission channels can be the main transmission channel 131 in Fig. 1 and secondary transmission channel 132.
Exemplarily, described by described electric energy data by least two transmission channels be sent to data process Main station unit 140, may include that
Main transmission channel 131 is selected to carry out the electric energy data transmission of current period;
Judge transmission whether success, the most then by the main transmission channel 131 electric flux number to current period According to being transmitted, after the electric energy data of current period is transmitted, terminate the communication of current period, etc. Treat the communication in next cycle;
Otherwise, it is judged that whether the number of times of bust this exceedes setting threshold value, if then selecting secondary transmission channel 132 Carry out the electric energy data transmission of current period, otherwise continue to select main transmission channel 131 to carry out current period Electric energy data transmission.
Concrete, may refer to the main transmission channel 131 shown in Fig. 3 logical with what secondary transmission channel 132 used Letter method flow diagram: after communication starts, the main transmission channel of prioritizing selection 131 carries out data transmission, and sentences Whether disconnected main transmission channel 131 communicates successfully, if then arranging main transmission channel 131 to communicate normal mark also Proceed by data transmission, until the data of current period terminate communication after being transmitted, wait next cycle Communication instruction;Otherwise judge whether communication failure number of times exceedes threshold value, if then arranging main transmission channel 131 Communication abnormality mark also selects secondary transmission channel 132 to carry out data transmission, and selects secondary transmission channel 132 to carry out The process of data transmission and the similar process selecting main transmission channel 131 to carry out data transmission, specifically can join As shown in Figure 3.
A kind of electrical energy metering method that the present embodiment provides, is measured each by least two electric energy meter Point carries out electrical energy metering, it is ensured that when one of them electric energy meter breaks down, it is also possible to utilize another The electric flux of stoichiometric point is measured by electric energy meter;Institute is read according to setpoint frequency by least two harvester State the electric energy data in electric energy meter, it is ensured that when one of them harvester breaks down, it is also possible to utilize Another harvester reads the electric energy data in described electric energy meter;By at least two transmission channels by described Electric energy data is sent to data and processes main station unit, processes main station unit to described electric flux number for data According to processing, it is ensured that the electric energy data in harvester can reliablely and stablely send data to and process main Stand unit.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art Row various obvious changes, readjust and substitute without departing from protection scope of the present invention.Therefore, though So by above example, the present invention is described in further detail, but the present invention be not limited only to Upper embodiment, without departing from the inventive concept, it is also possible to include other Equivalent embodiments more, And the scope of the present invention is determined by scope of the appended claims.

Claims (6)

1. an electric energy metering system, it is characterised in that including: electrical energy metering unit, electric flux number Main station unit is processed, wherein according to collecting unit, electric energy data transmission unit and data:
Described electrical energy metering unit includes at least two electric energy meter, for entering the electric flux of identical stoichiometric point Row metering;
Described data acquisition for electric energy unit includes at least two harvester, each harvester and described at least two Individual electric energy meter is respectively connected with, for reading the electric energy data in described electric energy meter;
Described electric energy data transmission unit includes at least two transmission channels, described at least two transmission channels It is connected with described harvester respectively, for providing communication link for described electric energy data;
Described data process main station unit and are connected with described at least two transmission channels, are used for receiving described electric energy Amount data, and described electric energy data is processed.
System the most according to claim 1, it is characterised in that described electric energy meter is for having double RS-485 The electric energy meter of communication serial ports.
System the most according to claim 2, it is characterised in that:
One of them harvester in described at least two harvester and first RS-485 of described electric energy meter Communication serial ports is connected, for reading described electric energy meter by first RS-485 communication serial ports of described electric energy meter Electric energy data, in described at least two harvester second of remaining harvester and described electric energy meter RS-485 communication serial ports is connected, for reading institute by second RS-485 communication serial ports of described electric energy meter State the electric energy data of electric energy meter.
System the most according to claim 1, it is characterised in that described at least two transmission channels include:
Multi-service transport platform MSTP passage and dispatch data net passage.
5. an electrical energy metering method, uses the arbitrary described electric energy metering system of claim 1-4 to hold OK, it is characterised in that including:
By at least two electric energy meter, the electric flux of same stoichiometric point is carried out real time measure;
The electric energy data in described electric energy meter is read according to setpoint frequency by least two harvester;
Described electric energy data is sent to data by least two transmission channels and processes main station unit, for Data process main station unit and process described electric energy data.
Method the most according to claim 5, it is characterised in that described described electric energy data is passed through Article at least two, transmission channel is sent to data and processes main station unit, including:
Main transmission channel is selected to carry out the electric energy data transmission of current period;
Judge that transmission is the most successful, the most then by main transmission channel, the electric energy data of current period is entered Row transmission, after the electric energy data of current period is transmitted, terminates the communication of current period, under wait The communication in one cycle;
Otherwise, it is judged that whether the number of times of bust this exceedes setting threshold value, if then selecting secondary transmission channel to enter The electric energy data transmission of row current period, otherwise continues the electric energy selecting main transmission channel to carry out current period Amount data transmission;Wherein said main transmission channel is at least two transmission described in electric energy data transmission unit In passage wherein one, described secondary transmission channel is at least two biographies described in electric energy data transmission unit In defeated passage wherein one.
CN201610479750.0A 2016-06-23 2016-06-23 Electrical energy metering system and method CN106018947A (en)

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