CN106443564A - Digitalized harmonic standard electric energy meter and electric energy calibration system - Google Patents
Digitalized harmonic standard electric energy meter and electric energy calibration system Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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Abstract
The invention, which relates to the field of the checking technology for the electric energy meter, provides a digitalized harmonic standard electric energy meter and an electric energy calibration system. The electric energy calibration system comprises a digital power source, an industrial optical fiber switch, a calibrated digital electric energy meter, and a digital harmonic standard electric energy meter. The digital power source is used for sending a digital sampling message to the industrial optical fiber switch; the industrial optical fiber switch is used for sending the digital sampling message to the digital electric energy meter and the digital harmonic standard electric energy meter; the digital electric energy meter is used for receiving the digital sampling message and outputting an electric energy pulse to the digital harmonic standard electric energy meter; and the digital harmonic standard electric energy meter is used for calibrating the electric energy pulse based on the digital sampling message as the standard. Therefore, the calculation standard of the harmonic electric energy on various conditions is realized; and the system can be used for testing a fundamental-wave electric energy error, a harmonic electric energy error, and a total electric energy error of a digitalized electric energy meter.
Description
Technical field
The present invention, with regard to powder technology field, especially with regard to the calibration technology of electric energy meter, is concretely a kind of numeral
Change harmonic standard electric energy meter and electric energy verification system.
Background technology
This part is it is intended that the embodiments of the present invention stated in claims provide background or context.Herein
Description is not because include just recognizing to be prior art in this part.
At present, Some Domestic research institution have developed corresponding digitalized electrical energy meter check system, the verification of development
System is broadly divided into two classes：One is digital standard source method, and its ultimate principle is to be produced by standard digital power source to meet
The Frame of IEC61850-9-1/2 communication protocol, transfers data to each piece of digitized by switch and optical-electrical converter
Electric energy meter.Digitalized electrical energy meter calculates electric flux according to the voltage receiving, current data, and exports corresponding low-frequency pulse
To Error Calculator；Meanwhile, the pulse of standard digital power source outputting standard is to Error Calculator.Finally, Error Calculator according to
The low-frequency pulse of calibration pulse and electric energy meter output draws error.Two is standard digital electric energy meter method, the crucial portion of assay device
Dividing is the combining unit accepting analog quantity, after collection of simulant signal, forms ethernet frame according to IEC61850 communication protocol, leads to
Cross fiber optic network or twisted-pair wire net is sent to tested digitalized electrical energy meter.Whole assay device comprises calibration power source, mark
Quasi- electric energy meter and combining unit three part accepting analog quantity.
But the check system whether based on digital standard source method is also based on the check system of standard digital electric energy meter method,
All only error testing is carried out to total electric energy, fundamental energy or harmonic electric energy individually can not be examined and determine.Foundation《JJG
1106-2015 work state type harmonic wave active electric energy meter》、《GB/T14549-1993 quality of power supply utility network harmonic wave》And its
Its related electric energy meter calibration code, needs the harmonic electric energy of electric energy meter is examined and determine.
Therefore, how the harmonic electric energy calibrating demand for digitalized electrical energy meter researches and develops a kind of digitized harmonic wave mark
Quasi- electric energy meter is to realize the harmonic electric energy calibrating to digitalized electrical energy meter, the accuracy of Support Digitalization electric energy meter metering is ability
Domain technical barrier urgently to be resolved hurrily.
Content of the invention
In view of this, this application provides a kind of digitized harmonic standard electric energy meter and electric energy verification system, to solve
Digitalized electrical energy meter of the prior art is difficult to the problem that harmonic electric energy is examined and determine, and uses digitalized electric energy thus having ensured
Table carries out the accuracy of electric energy metrical.
To achieve these goals, the present invention provides a kind of digitized harmonic standard electric energy meter, described digitized harmonic wave mark
Quasi- electric energy meter includes device for embedded control, the Ethernet interface being connected and pulse are defeated with described device for embedded control respectively
Entrance, wherein, described Ethernet interface, for receiving digital sample message, and described digital sample message is sent to described embedding
Enter formula control device；
Described pulse input mouth, for sending electrical energy pulse to described device for embedded control；
Described device for embedded control includes：
Decoding sampling unit, for being decoded to described digital sample message, and by decoded digital sample message
Carry out sampling and obtain standard electric energy sampled value；
Electric energy computing unit, is connected with described decoding sampling unit, for carrying out electricity to described standard electric energy sampled value
Can calculate, obtain standard electric energy；
Pulse processing unit, for carrying out low and high level process and burr Filtering Processing to described electrical energy pulse, obtains
Electrical energy pulse after process；
Electric energy error determining unit, is connected with described pulse processing unit and electric energy computing unit, for basis
Electrical energy pulse after described standard electric energy and process determines electric energy error data.
In a preferred embodiment of the invention, described digitized harmonic standard electric energy meter also includes pulse delivery outlet, with
Described device for embedded control is connected, for described digital sample message is converted to output after pulse.
In a preferred embodiment of the invention, described digitized harmonic standard electric energy meter also includes：
Man-machine interface, respectively with described device for embedded control, Ethernet interface, pulse delivery outlet and pulse input mouth phase
Connect, for acquisition parameter configuration data；
Described device for embedded control, for determining what described electric energy computing unit obtained according to described parameter configuration data
The type of standard electric energy；
Described Ethernet interface, is additionally operable to determine protocol type and voltage x current sampling ratio according to described parameter configuration data
Example coefficient；
Described pulse input mouth, is additionally operable to determine pulse input constant according to described parameter configuration data；
Described pulse delivery outlet, is additionally operable to determine pulse output constant according to described parameter configuration data.
In a preferred embodiment of the invention, the type of described standard electric energy includes standard fundamental energy or standard harmonic
Electric energy or the total electric energy of standard.
In a preferred embodiment of the invention, described device for embedded control also includes：Alignment unit, respectively with described
Electric energy error determining unit, institute's electric energy computing unit, pulse processing unit and decoding sampling unit are connected, for described
Device for embedded control is calibrated.
In a preferred embodiment of the invention, described man-machine interface is additionally operable to acquisition controlling instruction, described control instruction
For controlling being turned on and off of described Ethernet interface, described pulse delivery outlet, pulse input mouth and alignment unit.
In a preferred embodiment of the invention, described device for embedded control also includes：Communication unit, with described electric energy
Error determining unit, electric energy computing unit and alignment unit are connected, for sending described control instruction to described calibration
Unit, described parameter configuration data is sent to described electric energy computing unit, and described electric energy error data is activation is extremely described
Man-machine interface.
In a preferred embodiment of the invention, described device for embedded control also includes memory element, with described decoding
Sampling unit, electric energy error determining unit are connected, for storing described standard electric energy sampled value and described electric energy error number
According to.
In a preferred embodiment of the invention, described digitized harmonic standard electric energy meter also include man-machine with described respectively
Memorizer and communication interface that interface is connected.
It is an object of the invention to provide a kind of electric energy verification system, described electric energy verification system includes digitized
Power source, industrial optical fiber switch, accredited digitalized electrical energy meter and digitized harmonic standard electric energy meter,
Wherein, described digitized power source, is connected with described industrial optical fiber switch by optical fiber, for described work
Industry optical fiber switch sends digital sample message；
Described industrial optical fiber switch, humorous with described accredited digitalized electrical energy meter and digitized respectively by optical fiber
Ripple standard electric energy meter is connected, for described digital sample message is respectively sent to described digitalized electrical energy meter and digitized
Harmonic standard electric energy meter；
Described digitalized electrical energy meter, is connected with described digitized harmonic standard electric energy meter, adopts for receiving described numeral
Sample message, and export electrical energy pulse to described digitized harmonic standard electric energy meter；
Described digitized harmonic standard electric energy meter, for being entered to described electrical energy pulse with described digital sample message for standard
Row calibrating.
The beneficial effects of the present invention is, there is provided a kind of digitized harmonic standard electric energy meter and electric energy verification system,
Achieve the calculating standard of harmonic electric energy under various conditions, and can be used for testing digitalized electrical energy meter fundamental energy error,
Harmonic electric energy error, total electric energy error, solving the problems, such as that digitalized electrical energy meter harmonic electric energy is difficult to examine and determine, making thus having ensured
Carry out the accuracy of electric energy metrical with digitalized electrical energy meter.
It is that the above and other objects, features and advantages of the present invention can be become apparent, preferred embodiment cited below particularly,
And coordinate institute's accompanying drawings, it is described in detail below.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structured flowchart of electric energy verification system provided in an embodiment of the present invention；
Fig. 2 is a kind of structural frames of the embodiment one of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of structural frames of the embodiment two of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
Figure；
Fig. 4 is a kind of structural frames of the embodiment three of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
Figure；
Fig. 5 is the enforcement of device for embedded control in a kind of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
The structured flowchart of mode one；
Fig. 6 is the enforcement of device for embedded control in a kind of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
The structured flowchart of mode two.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Art technology technical staff is known, embodiments of the present invention can be implemented as a kind of system, device, equipment,
Method or computer program.Therefore, the disclosure can be implemented as following form, that is,：Completely hardware, completely soft
Part (includes firmware, resident software, microcode etc.), or the form that hardware and software combines.
Below with reference to some representative embodiments of the present invention, the in detail principle of the explaination present invention and spirit.
The present invention is directed to now with the check system based on digital standard source method in technology and is based on standard digital electric energy
The check system of table method all only carries out error testing to total electric energy, can not carry out fundamental energy or harmonic electric energy is individually examined
Fixed technical problem is it is proposed that a kind of digitized harmonic standard electric energy meter and electric energy verification system are it is achieved that to digitized electricity
The harmonic electric energy calibrating of energy table, has ensured the accuracy of digitalized electrical energy meter metering.
Next, refer to the attached drawing is introduced to the electric energy verification system of exemplary embodiment of the invention.Following made
Term " module " and " unit ", can be software and/or the hardware realizing predetermined function.Although described by following examples
Module preferably to be realized with software, but hardware, or the realization of the combination of software and hardware is also may and to be contemplated
's.
Fig. 1 is a kind of structured flowchart of electric energy verification system provided in an embodiment of the present invention, refers to Fig. 1, and described is
System includes digitized power source 100, industrial optical fiber switch 200, accredited digitalized electrical energy meter 300 and digitized harmonic wave
Standard electric energy meter 400.
Wherein, described digitized power source 100, is connected with described industrial optical fiber switch 200 by optical fiber, for
Described industrial optical fiber switch 200 sends digital sample message.In a particular embodiment, digitized power source 100 passes through
Digital water transfer algorithm is produced the digital sample message meeting IEC61850-9-1 or IEC61850-9-2 requirement and is connected by optical fiber
It is connected to industrial optical fiber switch.
Described industrial optical fiber switch 200, by optical fiber respectively with described accredited digitalized electrical energy meter 300 and number
Word harmonic standard electric energy meter 400 is connected, for described digital sample message is respectively sent to described digitalized electrical energy meter
300 and digitized harmonic standard electric energy meter 400, namely the digital sample message inputting forwards by industrial optical fiber switch 200
For two-way output, it is coupled with digitized harmonic standard electric energy meter and tested digitalized electrical energy meter.
Described digitalized electrical energy meter 300, is connected with described digitized harmonic standard electric energy meter 400, described for receiving
Digital sample message, and export electrical energy pulse to described digitized harmonic standard electric energy meter 400；
Described digitized harmonic standard electric energy meter 400, for described digital sample message for standard to described electric energy arteries and veins
Rush in row calibrating.
In a particular embodiment, the meter constant of digitalized electrical energy meter and the electricity of its corresponding calibrating can be set
After energy type parameter, digitized harmonic standard electric energy meter samples message as standard with the IEC61850-9-2 receiving, with receive
Electrical energy pulse inputs as tested, realize to digitalized electrical energy meter fundamental energy, harmonic electric energy, total electric energy error calibrating.
Fig. 2 is a kind of structural frames of the embodiment one of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
Figure, refers to Fig. 2, and in embodiment one, described digitized harmonic standard electric energy meter includes device for embedded control 401, divides
The Ethernet interface 402 not being connected with described device for embedded control 401 and pulse input mouth 403.
Wherein, described Ethernet interface 402, for receiving digital sample message, and by described digital sample message send to
Described device for embedded control.Digital sample message is inputted numeral by Ethernet interface 402 by described industrial optical fiber switch 200
Change harmonic standard electric energy meter.
Described pulse input mouth 403, for sending electrical energy pulse to described device for embedded control 401.Described digitized
Electric energy meter 300 exports electrical energy pulse to the pulse input mouth of described digitized harmonic standard electric energy meter 400.
Fig. 5 is the enforcement of device for embedded control in a kind of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
The structured flowchart of mode one, refers to Fig. 5, and in embodiment one, device for embedded control includes：
Decoding sampling unit 41, for being decoded to described digital sample message, and by decoded digital sample report
Literary composition carries out sampling and obtains standard electric energy sampled value.Decoding sampling unit according to the digital sample message receiving, according to
IEC61850-9-1 or IEC61850-9-2 message format is decoded post-sampling and is converted to corresponding standard electric energy sampled value.Solution
Code sampling unit also can realize frame losing detection according to frame number in the other embodiment of the present invention simultaneously, when frame losing
When, simulate the sampling point value of loss it is ensured that the seriality of later stage process signal using second order Lagrange's interpolation algorithm again,
And controlled by DMA, sampled value is transferred to internal storage unit and is stored.
Electric energy computing unit 42, is connected with described decoding sampling unit, for carrying out to described standard electric energy sampled value
Electric energy calculates, and obtains standard electric energy.In the present invention, standard electric energy includes polytype, can be according to accredited digitized electricity
The calibrating form of energy table is configured, and optionally, standard electric energy includes standard fundamental energy or standard harmonic electric energy or standard is total
Electric energy, the summation of the total electric energy of standard as fundamental energy and standard harmonic electric energy herein.
In a particular embodiment, electric energy computing unit carries out electric energy calculating to standard electric energy sampled value, realizes fundamental wave
Electric energy and harmonic electric energy computational algorithm.Electric energy computational algorithm include fft algorithm, dot product and algorithm, complexification Simpson algorithm,
Complexification Cotes algorithm.For the metering feature of digitalized electrical energy meter, it inputs the packet for digital quantity, is discrete voltage
Current value, voltage x current, power virtual value, phase value computation model and error component, impact when digitalized electrical energy meter is measured
Amount is analyzed.Produced problem in the digital display circuit such as " packet loss ", " shake ", " network storm " is affected on measured value simultaneously
Studied, the diversity of the digital electric energy of analysis and traditional analog electric energy table algorithm.Algorithmic characteristic research knot is referred to during use
Really, examined and determine from one of above-mentioned four kinds of algorithms in calibrating.
Pulse processing unit 43, for carrying out low and high level process and burr Filtering Processing to described electrical energy pulse, obtains
Electrical energy pulse to after process.Pulse processing unit adopts active and passive self-adaptive process, can support active or passive arteries and veins
Punching input, and realize for standard electrical energy pulse carrying out output being used for tracing to the source.
Electric energy error determining unit 44, is connected with described pulse processing unit and electric energy computing unit, for root
Determine electric energy error data according to the electrical energy pulse after described standard electric energy and process.I.e. electric energy error determining unit is by standard electric
Can be contrasted with tested electrical energy pulse, be obtained tested electric energy error data.
Fig. 3 is a kind of structural frames of the embodiment two of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
Figure, refers to Fig. 3, digitized harmonic standard electric energy meter also includes in embodiment two：
Pulse delivery outlet 404, is connected with described device for embedded control, for being converted to described digital sample message
Export after pulse.Setting pulse delivery outlet is to subsequently allow other equipment to digitized harmonic standard electric energy meter in the present invention
Examined and determine.
Man-machine interface 405, respectively with described device for embedded control 401, Ethernet interface 402, pulse delivery outlet 404 and
Pulse input mouth 403 is connected, for acquisition parameter configuration data；
Described device for embedded control, for determining what described electric energy computing unit obtained according to described parameter configuration data
The type of standard electric energy.The type of described standard electric energy includes standard fundamental energy or standard harmonic electric energy or the total electric energy of standard.
Described Ethernet interface, is additionally operable to determine protocol type and voltage x current sampling ratio according to described parameter configuration data
Example coefficient.
Described pulse input mouth, is additionally operable to determine pulse input constant according to described parameter configuration data.
Described pulse delivery outlet, is additionally operable to determine pulse output constant according to described parameter configuration data.
Fig. 6 is the enforcement of device for embedded control in a kind of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
The structured flowchart of mode two, refers to Fig. 6, and in embodiment two, device for embedded control also includes：
Alignment unit 45, respectively with described electric energy error determining unit, institute's electric energy computing unit, pulse processing unit and
Decoding sampling unit is connected, for calibrating to described device for embedded control.
Communication unit 46, is connected with described electric energy error determining unit, electric energy computing unit and alignment unit, is used for
Described control instruction is sent to described alignment unit, described parameter configuration data is sent to described electric energy computing unit, and
By described electric energy error data is activation to described man-machine interface.Communication unit completes the communication with man-machine interface, receives control and refers to
Order and parameter configuration return response message, connecting interface adopts RS232 serial ports to design, based on self-defined serial communication association
View is realized.
Memory element 47, is connected with described decoding sampling unit, electric energy error determining unit, for storing described standard
Electric energy sampling value and described electric energy error data.
In the other embodiment of the present invention, described man-machine interface is additionally operable to acquisition controlling instruction, described control instruction
For controlling being turned on and off of described Ethernet interface, described pulse delivery outlet, pulse input mouth and alignment unit.Human-machine interface
Mouth completes the interactive controlling with user, in the particular embodiment by the conventional input such as TFT liquid crystal display screen, mouse, keyboard, display
Equipment, industrial computer are constituted, and using the LX-801A industrial computer of Seatech, industrial computer runs windows operating system, test device
System controlling software operate on industrial computer, the interactive controlling with user is completed by man-machine interface.
Fig. 4 is a kind of structural frames of the embodiment three of digitized harmonic standard electric energy meter provided in an embodiment of the present invention
Figure, refer to Fig. 4, in embodiment three, described digitized harmonic standard electric energy meter also include respectively with described man-machine interface
The memorizer 406 being connected and communication interface 407.
As described above, as the present invention provide a kind of digitized harmonic standard electric energy meter, including device for embedded control,
Optical Ethernet interface, calibration pulse output interface, pulse input interface, Man Machine Interface, memorizer, communication interface.Embedded
Formula control device is connected with man-machine interface, optical Ethernet interface, calibration pulse output interface, pulse input interface respectively, man-machine
Interface is connected with memorizer, communication interface respectively.
Wherein, man-machine interface is used for sending control instruction and parameter configuration data to device for embedded control, and receive and
The return information of display device for embedded control；Device for embedded control is used for agreement being decoded process, and receives luminiferous ether
The Ethernet sampling message of net input, is decoded to the sampling message that Ethernet interface inputs by parsing sampling unit, and
Fundamental wave and harmonic standard electric energy are calculated by electric energy computing unit, and processes the tested electrical energy pulse that pulse input mouth inputs, by arteries and veins
Rush processing unit to complete to realize electric energy by mistake by electric energy error processing unit according to standard electric energy and tested electric energy again after pulse is processed
The calculating of difference is processed, and is also connected with pulse delivery outlet simultaneously, is exported after standard electric energy is changed by pulse processing unit；
Memory element stores to standard sample waveform, electric energy error result of calculation；Communication interface is used for carrying out even with external equipment
Connect, can be used for being attached by USB interface with PC, upload electric energy error data.
In sum, the present invention is directed to now with the check system based on digital standard source method in technology and is based on standard
The check system of digital electricity meter method all only carries out error testing to total electric energy, can not carry out fundamental energy or harmonic electric energy enters
The technical problem of the independent calibrating of row is it is proposed that a kind of digitized harmonic standard electric energy meter and electric energy verification system are it is achieved that right
The harmonic electric energy calibrating of digitalized electrical energy meter, has ensured the accuracy of digitalized electrical energy meter metering.
For the improvement of a technology, can clearly to distinguish be improvement on hardware (for example, to diode, crystal
Pipe, switch etc. circuit structure improvement) or software on improvement (for the improvement of method flow).However, with technology
Development, the improvement of current a lot of method flows can be considered as directly improving of hardware circuit.Designer is almost
All by being programmed into obtain corresponding hardware circuit in hardware circuit improved method flow.Therefore, it cannot be said that one
The improvement of individual method flow cannot be realized with hardware entities module.For example, PLD (Programmable
Logic Device, PLD) (such as field programmable gate array (Field Programmable Gate Array, FPGA)) just
It is such a integrated circuit, its logic function to be determined to device programming by user.Voluntarily program one by designer
Individual digital display circuit " integrated " on a piece of PLD, without chip maker please designing and make special integrated circuit
Chip 2.And, nowadays, replace and manually make IC chip, " logic compiler is also used in this programming mostly instead
Realizing, when it is write with program development, software compiler used is similar, and will compile for (logic compiler) " software
Source code before also handy specific programming language writing, this is referred to as hardware description language (Hardware
Description Language, HDL), and HDL is also not only a kind of, but have many kinds, such as ABEL (Advanced
Boolean Expression Language)、AHDL(Altera Hardware Description Language)、
Confluence、CUPL(Cornell University Programming Language)、HDCal、JHDL(Java
Hardware Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby Hardware
Description Language) etc., that commonly use most at present is VHDL (Very-High-Speed Integrated
Circuit Hardware Description Language) and Verilog2.Those skilled in the art also should be clear, only
Need with above-mentioned several hardware description languages, method flow slightly to be made programming in logic and is programmed in integrated circuit it is possible to hold very much
The hardware circuit of this logical method flow process easily accomplished.
Controller can be implemented in any suitable manner, and for example, controller can take such as microprocessor or process
Device and storage can by the computer of the computer readable program code (such as software or firmware) of this (micro-) computing device
Read medium, gate, switch, special IC (Application Specific Integrated Circuit,
ASIC), the form of programmable logic controller (PLC) and embedded microcontroller, the example of controller includes but is not limited to following microcontroller
Device：ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320, deposit
Memory controller is also implemented as a part for the control logic of memorizer.
It is also known in the art that in addition to controller is realized in pure computer readable program code mode, complete
Full controller can be made with gate, switch, special IC, programmable by method and step is carried out programming in logic
The form of logic controller and embedded microcontroller etc. is realizing identical function.Therefore this controller is considered one kind
Hardware component, and the structure in hardware component can also be considered as to the device for realizing various functions including in it.Or
Even, the device being used for realizing various functions can be considered as not only being the software module of implementation method but also can be Hardware Subdivision
Structure in part.
System, device, module or unit that above-described embodiment illustrates, specifically can be realized by computer chip or entity,
Or to be realized by the product with certain function.
For convenience of description, it is divided into various units to be respectively described with function when describing apparatus above.Certainly, implementing this
The function of each unit can be realized in same or multiple softwares and/or hardware during application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Mode by software plus necessary general hardware platform to be realized.Based on such understanding, the technical scheme essence of the application
On in other words prior art is contributed partly can be embodied in the form of software product, this computer software product
Can be stored in storage medium, such as ROM/RAM, magnetic disc, CD etc., include some instructions use so that a computer equipment
(can be personal computer, server, or network equipment etc.) executes some of each embodiment of the application or embodiment
Partly described method.
Each embodiment in this specification is all described by the way of going forward one by one, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Real especially for system
For applying example, because it is substantially similar to embodiment of the method, so description is fairly simple, referring to embodiment of the method in place of correlation
Part illustrate.
The application can be used in numerous general or special purpose computing system environments or configuration.For example：Personal computer, clothes
Business device computer, handheld device or portable set, laptop device, multicomputer system, the system based on microprocessor, put
Top box, programmable consumer-elcetronics devices, network PC, minicomputer, mainframe computer, inclusion any of the above system or equipment
Distributed computing environment etc..
The application can be described in the general context of computer executable instructions, such as program
Module.Usually, program module includes execution particular task or the routine realizing particular abstract data type, program, object, group
Part, data structure etc..The application can also be put into practice in a distributed computing environment, in these distributed computing environment, by
The remote processing devices connected by communication network are executing task.In a distributed computing environment, program module is permissible
It is located in the local and remote computer-readable storage medium including storage device.
Although the application is depicted by embodiment, it will be appreciated by the skilled addressee that the application have many deformation and
Change is without deviating from spirit herein it is desirable to appended claim includes these deformation and change without deviating from the application's
Spirit.
Claims (10)
1. a kind of digitized harmonic standard electric energy meter, is characterized in that, described digitized harmonic standard electric energy meter includes embedded control
Device processed, the Ethernet interface being connected with described device for embedded control respectively and pulse input mouth,
Wherein, described Ethernet interface, for receiving digital sample message, and described digital sample message is sent to described embedded
Formula control device；
Described pulse input mouth, for sending electrical energy pulse to described device for embedded control；
Described device for embedded control includes：
Decoding sampling unit, for being decoded to described digital sample message, and decoded digital sample message is carried out
Sampling obtains standard electric energy sampled value；
Electric energy computing unit, is connected with described decoding sampling unit, based on carrying out electric energy to described standard electric energy sampled value
Calculate, obtain standard electric energy；
Pulse processing unit, for carrying out low and high level process and burr Filtering Processing to described electrical energy pulse, is processed
Electrical energy pulse afterwards；
Electric energy error determining unit, is connected with described pulse processing unit and electric energy computing unit, for according to described
Electrical energy pulse after standard electric energy and process determines electric energy error data.
2. digitized harmonic standard electric energy meter according to claim 1, is characterized in that, described digitized harmonic standard electric energy
Table also includes：
Pulse delivery outlet, is connected with described device for embedded control, for being converted to described digital sample message after pulse
Output.
3. digitized harmonic standard electric energy meter according to claim 2, is characterized in that, described digitized harmonic standard electric energy
Table also includes：
Man-machine interface, is connected with described device for embedded control, Ethernet interface, pulse delivery outlet and pulse input mouth respectively
Connect, for acquisition parameter configuration data；
Described device for embedded control, for determining, according to described parameter configuration data, the standard that described electric energy computing unit obtains
The type of electric energy；
Described Ethernet interface, is additionally operable to determine protocol type and voltage x current oversampling ratio system according to described parameter configuration data
Number；
Described pulse input mouth, is additionally operable to determine pulse input constant according to described parameter configuration data；
Described pulse delivery outlet, is additionally operable to determine pulse output constant according to described parameter configuration data.
4. digitized harmonic standard electric energy meter according to claim 3, is characterized in that, the type of described standard electric energy includes
Standard fundamental energy or standard harmonic electric energy or the total electric energy of standard.
5. digitized harmonic standard electric energy meter according to claim 3, is characterized in that, described device for embedded control also wraps
Include：
Alignment unit, is adopted with described electric energy error determining unit, institute's electric energy computing unit, pulse processing unit and decoding respectively
Sample unit is connected, for calibrating to described device for embedded control.
6. digitized harmonic standard electric energy meter according to claim 5, is characterized in that, described man-machine interface is additionally operable to gather
Control instruction, described control instruction is used for controlling described Ethernet interface, described pulse delivery outlet, pulse input mouth and calibration single
Unit is turned on and off.
7. digitized harmonic standard electric energy meter according to claim 6, is characterized in that, described device for embedded control also wraps
Include：
Communication unit, is connected with described electric energy error determining unit, electric energy computing unit and alignment unit, for will be described
Control instruction sends to described alignment unit, and described parameter configuration data is sent to described electric energy computing unit, and will be described
Electric energy error data is activation is to described man-machine interface.
8. digitized harmonic standard electric energy meter according to claim 6, is characterized in that, described device for embedded control also wraps
Include：
Memory element, is connected with described decoding sampling unit, electric energy error determining unit, adopts for storing described standard electric energy
Sample value and described electric energy error data.
9. digitized harmonic standard electric energy meter according to claim 6, is characterized in that, described digitized harmonic standard electric energy
Table also includes memorizer and the communication interface being connected respectively with described man-machine interface.
10. a kind of electric energy verification system, is characterized in that, described electric energy verification system includes digitized power source, industrial optical fiber is handed over
Change planes, accredited digitalized electrical energy meter and the digitized harmonic standard electric energy meter as described in claim 1-9 any one,
Wherein, described digitized power source, is connected with described industrial optical fiber switch by optical fiber, for handing over to described industrial optical fiber
Change planes and send digital sample message；
Described industrial optical fiber switch, by optical fiber respectively with described accredited digitalized electrical energy meter and digitized harmonic wave mark
Quasi- electric energy meter is connected, for described digital sample message is respectively sent to described digitalized electrical energy meter and digitized harmonic wave
Standard electric energy meter；
Described digitalized electrical energy meter, is connected with described digitized harmonic standard electric energy meter, for receiving described digital sample report
Literary composition, and export electrical energy pulse to described digitized harmonic standard electric energy meter；
Described digitized harmonic standard electric energy meter, for being examined to described electrical energy pulse with described digital sample message for standard
Fixed.
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