CN205139357U - A direct current electric energy meter verification system charges - Google Patents
A direct current electric energy meter verification system charges Download PDFInfo
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- CN205139357U CN205139357U CN201520964617.5U CN201520964617U CN205139357U CN 205139357 U CN205139357 U CN 205139357U CN 201520964617 U CN201520964617 U CN 201520964617U CN 205139357 U CN205139357 U CN 205139357U
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Abstract
The embodiment of the utility model discloses a direct current electric energy meter verification system charges, include: computer control, table source integrated device and a plurality of direct current electric energy meter of being examined, computer control pass through communication bus and link to each other with table source integrated device, computer control sends the verification task through communication bus to table source integrated device, table source integrated device examines and determine a plurality of electric energy errors of being examined the direct current electric energy meter according to the received verification task simultaneously. The embodiment of the utility model provides a direct current electric energy meter verification system charges through the multichannel electric energy error calculation module of table among the integrated device of source according to received standard electric energy pulse with examined the electric energy pulse and calculate every electric energy error of being examined the direct current electric energy meter respectively, it adopts unified testing standards to examine and determine a plurality of direct current electric energy meters the while, has improved examination speed greatly.
Description
Technical field
The utility model relates to direct current energy meter Calibration Technology field, particularly relates to a kind of charging pile direct-current electric energy verification system.
Background technology
Along with haze is harassed again and again, the pure electric automobile of zero-emission, no pollution comes into the main battle ground of automobile consumption.Electric automobile is favored because its outstanding environmental protection and energy saving characteristic is subject to the people of various countries.Novel electric vehicle is motor trend, but associated supplementary measures unsound.Electric automobile charging station measurement instrument, the important operation as Development of Electric Vehicles ensures, whether its electric energy metrical sets up unified standard, is to be related to the key that can trade settlement fair and just.
In prior art, AC energy metering relative maturity, and the metering that direct current energy meter is applied to charging electric vehicle electric energy is in the starting stage.Present stage direct current energy meter calibrating installation not unified standard, and calibrating efficiency is low, and it will affect the development process of electric automobile greatly.Therefore, a kind of specification and efficient direct current energy meter verification system urgently occur.
Utility model content
The utility model embodiments provides a kind of charging pile direct-current electric energy verification system, does not seek unity of standard, and examine and determine inefficient problem to solve the calibrating installation of direct current energy meter in prior art.
In order to solve the problems of the technologies described above, the utility model embodiment discloses following technical scheme:
A kind of charging pile direct-current electric energy verification system, comprising:
Computer control, show resource integrated device and multiple tested direct current energy meter, computer control is connected with the resource integrated device of table by communication bus, described computer control sends verification task by communication bus to the resource integrated device of table, and the resource integrated device of described table examines and determine the electric energy error of multiple tested direct current energy meter according to the verification task received simultaneously;
The resource integrated device of described table comprises microprocessor, current source, Multi-path electricity potential source, full sized pules output module, the tested electrical energy pulse sampling module of multichannel and multiple way electric error calculating module;
Described microprocessor is connected with computer control by communication bus, for the verification task that receiving computer controller issues, and calculates the voltage range and current range that need calibrating according to verification task;
Described current source is electrically connected with multiple tested direct current energy meter, for multiple tested direct current energy meter Serial output electric current corresponding with described current range;
Described Multi-path electricity potential source is electrically connected with multiple tested direct current energy meter, for described multiple tested direct current energy meter parallel output voltage corresponding with described voltage range;
Described full sized pules output module is electrically connected with described current source and Multi-path electricity potential source, for according to receive electric current and voltage outputting standard electrical energy pulse;
Described multichannel tested electrical energy pulse sampling module is electrically connected with multiple tested direct current energy meter, for the tested electrical energy pulse of the multiple tested direct current energy of parallel acquisition;
Described multiple way electric error calculating module is electrically connected with described full sized pules output module and the tested electrical energy pulse sampling module of described multichannel respectively, for calculating the electric energy error of each tested direct current energy meter respectively according to the standard electric energy impulse received and tested electrical energy pulse.
Preferably, also comprise multi-epitope error display module, described multi-epitope error display module is electrically connected with described multiple way electric error calculating module, for receiving the electric energy error of multiple tested direct current energy meter and showing.
Preferably, the resource integrated device of described table also comprises man-machine conversation module, and described man-machine conversation module is electrically connected with described microprocessor.
Preferably, described tested electrical energy pulse comprises light pulse and electric pulse.
Preferably, described current source comprises direct access current source and shunt access type current source.
Preferably, the output current scope of described direct access current source is 1mA-600A; The output current scope of described shunt access type current source is 100 μ A-360mA.
Preferably, described full sized pules output module comprises modular converter, and described modular converter is used for converting performance number to standard electric energy impulse.
Preferably, the described standard electric energy impulse according to reception and tested electrical energy pulse calculate the electric energy error of each tested direct current energy meter respectively, specifically comprise:
Following formula is adopted to calculate the electric energy error of each tested direct current energy meter: δ
i=(m
i-m
0)/m
0* 100%, wherein, m
0for standard electric energy impulse, m
ibe the tested electrical energy pulse of i-th tested direct current energy meter, δ
iit is the electric energy error of i-th tested direct current energy meter.
Preferably, the tested electrical energy pulse m of described i-th tested direct current energy meter
ispecifically comprise:
M
i=R
i/ (a
h* C
i), wherein, R
ibe the revolution of i-th tested direct current energy meter, C
ibe the meter constant of i-th tested direct current energy meter, a
hfor the meter constant of standard direct current energy meter.
Preferably, the quantity of tested direct current energy meter is six, and described multichannel tested electrical energy pulse sampling module and multiple way electric error calculating module are respectively the six tested electrical energy pulse sampling modules in road and six road electric energy error computing modules.
From above technical scheme, a kind of charging pile direct-current electric energy verification system that the utility model embodiment provides provides electric current by current source to multiple tested direct current energy meter, voltage is provided to multiple tested direct current energy meter by voltage source, by the tested electrical energy pulse of the multiple tested direct current energy meter of multichannel tested electrical energy pulse sampling module sampling, and this tested electrical energy pulse is sent to multiple way electric error calculating module, standard electric energy impulse is generated by standard electric energy impulse output module, and this standard electric energy impulse is sent to multiple way electric error calculating module, multiple way electric error calculating module calculates the electric energy error of each tested direct current energy meter respectively according to the standard electric energy impulse received and tested electrical energy pulse, it adopts unified examination criteria to examine and determine multiple direct current energy meter simultaneously, substantially increase calibrating speed.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of charging pile direct-current electric energy verification system schematic diagram that Fig. 1 provides for the utility model embodiment.
Embodiment
Technical scheme in the utility model is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the utility model protection.
For present stage direct-current electric energy meter calibrating device standard verification disunity, and examine and determine inefficient problem, the utility model embodiment provides a kind of charging pile direct-current electric energy verification system, it adopts unified examination criteria to examine and determine multiple direct current energy meter simultaneously, not only substantially increase calibrating speed, and for setting up direct current energy metered amount value transmit system, formulate electric automobile charging station direct current energy metered amount value transmit specification and examine and determine specification and provide foundation, below in conjunction with accompanying drawing, a kind of charging pile direct-current electric energy verification system that the utility model embodiment provides is described in detail.
A kind of charging pile direct-current electric energy verification system schematic diagram that Fig. 1 provides for the utility model embodiment, as shown in Figure 1, a kind of charging pile direct-current electric energy verification system that the utility model embodiment provides, comprise: computer control, show resource integrated device and multiple tested direct current energy meter, computer control is connected with the resource integrated device of table by communication bus, computer control sends verification task by communication bus to the resource integrated device of table, show resource integrated device examines and determine multiple tested direct current energy meter simultaneously electric energy error according to the verification task received.Wherein, communication bus can select RS232 bus, and for realizing computer control and showing the communication between resource integrated device, certainly, other bus that communication bus also can select this area conventional, the utility model does not limit this.
Show resource integrated device and comprise microprocessor, current source, Multi-path electricity potential source, full sized pules output module, the tested electrical energy pulse sampling module of multichannel and multiple way electric error calculating module.Wherein, microprocessor is connected with computer control by communication bus, and microprocessor is used for the verification task that receiving computer controller issues, and calculates the voltage range and current range that need calibrating according to verification task.
Current source is electrically connected with multiple tested direct current energy meter, for multiple tested direct current energy meter Serial output electric current corresponding with needing the current range examine and determine, even if the size of this electric current is positioned within the current range that needs to examine and determine.In the present embodiment; be 6 with the quantity of tested direct current energy meter to be described; but it should be pointed out that those skilled in the art can carry out correspondence expansion to the data of tested direct current energy meter according to actual needs, it all should be within protection domain of the present utility model.In addition, current source comprises direct access current source and shunt access type current source, and wherein, the output current scope of direct access current source is 1mA-600A, and the output current scope of shunt access type current source is 100 μ A-360mA.When examining and determine tested direct current energy meter, can according to the current source of task needs selection correspondence for tested direct current energy meter provides calibrating electric current.
Multi-path electricity potential source is electrically connected with multiple tested direct current energy meter, and the quantity due to direct current energy meter tested in the utility model embodiment is six, and therefore, Multi-path electricity potential source selects six corresponding road voltage sources.Six road voltage sources are used for six tested direct current energy meter parallel outputs voltage corresponding with the voltage range needing to examine and determine, even if the size of this voltage is positioned within the voltage range of needs calibrating, in the utility model embodiment, the output voltage of six road voltage sources is 3V-900V.
Full sized pules output module is electrically connected with current source and six road voltage sources, for the standard electric energy impulse exported according to the electric current received and voltage.Be specially, gather the normalized current of current source and the normal voltage of voltage source respectively, according to normalized current and normal voltage calculated power value; Full sized pules output module also comprises a modular converter, by this modular converter, performance number is converted to the standard electric energy impulse of different frequency.
Multichannel tested electrical energy pulse sampling module is electrically connected with multiple tested direct current energy meter, quantity due to direct current energy meter tested in the utility model embodiment is six, therefore, multichannel tested electrical energy pulse sampling module selects the six corresponding tested electrical energy pulse sampling modules in road.Six road tested electrical energy pulse sampling modules are used for the tested electrical energy pulse of parallel acquisition six tested direct current energies, and wherein, this tested electrical energy pulse can be electric pulse and/or light pulse.
Multiple way electric error calculating module is electrically connected with full sized pules output module and the tested electrical energy pulse sampling module of multichannel respectively, quantity due to direct current energy meter tested in the utility model embodiment is six, therefore, multiple way electric error calculating module selects six corresponding road electric energy error computing modules.Six road electric energy error computing modules receive the tested electrical energy pulse of standard electric energy impulse and the six roads tested electrical energy pulse sampling module output that full sized pules output module exports respectively, and calculate the electric energy error of each tested direct current energy meter respectively according to standard electric energy impulse and tested electrical energy pulse.Be specially: by the tested electrical energy pulse m of each tested direct current energy meter
isubstitute in following formula respectively, try to achieve the electric energy error δ of corresponding tested direct current energy meter
i, wherein, in the utility model embodiment, m
ibe respectively m
1, m
2, m
3, m
4, m
5and m
6; δ
ibe respectively δ
1, δ
2, δ
3, δ
4, δ
5and δ
6.
Formula one: δ
i=(m
i-m
0)/m
0* 100%, wherein, m
0for standard electric energy impulse, m
ibe the tested electrical energy pulse of i-th tested direct current energy meter, δ
iit is the electric energy error of i-th tested direct current energy meter.
Formula two: m
i=R
i/ (a
h* C
i), wherein, R
ibe the revolution of i-th tested direct current energy meter, C
ibe the meter constant of i-th tested direct current energy meter, a
hfor the meter constant of standard direct current energy meter.
Formula three: a
h=(f*3600*1000)/(U*I), wherein, f is standard electric energy impulse frequency, and U is the full scale value of six road voltage sources, and I is the full scale value of current source.
In an advantageous embodiment, a kind of charging pile direct-current electric energy verification system that the utility model embodiment provides also comprises multi-epitope error display module, quantity due to direct current energy meter tested in the utility model embodiment is six, therefore, the six epi-position error display modules that multi-epitope error display model choice is corresponding.Six epi-position error display modules are electrically connected with six road electric energy error computing modules, for receiving the electric energy error of six tested direct current energy meters and showing.
In an advantageous embodiment, a kind of charging pile direct-current electric energy verification system that the utility model embodiment provides also comprises man-machine conversation module, and man-machine conversation module is electrically connected with microprocessor, for realizing man-machine interaction.
From above technical scheme, a kind of charging pile direct-current electric energy verification system that the utility model embodiment provides provides electric current by current source to multiple tested direct current energy meter, voltage is provided to multiple tested direct current energy meter by voltage source, by the tested electrical energy pulse of the multiple tested direct current energy meter of multichannel tested electrical energy pulse sampling module sampling, and this tested electrical energy pulse is sent to multiple way electric error calculating module, standard electric energy impulse is generated by standard electric energy impulse output module, and this standard electric energy impulse is sent to multiple way electric error calculating module, multiple way electric error calculating module calculates the electric energy error of each tested direct current energy meter respectively according to the standard electric energy impulse received and tested electrical energy pulse, it adopts unified examination criteria to examine and determine multiple direct current energy meter simultaneously, substantially increase calibrating speed.
It should be noted that, in this article, the such as relational terms of " first " and " second " etc. and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only embodiment of the present utility model, those skilled in the art is understood or realizes the utility model.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a charging pile direct-current electric energy verification system, is characterized in that, comprising:
Computer control, show resource integrated device and multiple tested direct current energy meter, computer control is connected with the resource integrated device of table by communication bus, described computer control sends verification task by communication bus to the resource integrated device of table, and the resource integrated device of described table examines and determine the electric energy error of multiple tested direct current energy meter according to the verification task received simultaneously;
The resource integrated device of described table comprises microprocessor, current source, Multi-path electricity potential source, full sized pules output module, the tested electrical energy pulse sampling module of multichannel and multiple way electric error calculating module;
Described microprocessor is connected with computer control by communication bus, for the verification task that receiving computer controller issues, and calculates the voltage range and current range that need calibrating according to verification task;
Described current source is electrically connected with multiple tested direct current energy meter, for multiple tested direct current energy meter Serial output electric current corresponding with described current range;
Described Multi-path electricity potential source is electrically connected with multiple tested direct current energy meter, for described multiple tested direct current energy meter parallel output voltage corresponding with described voltage range;
Described full sized pules output module is electrically connected with described current source and Multi-path electricity potential source, for according to receive electric current and voltage outputting standard electrical energy pulse;
Described multichannel tested electrical energy pulse sampling module is electrically connected with multiple tested direct current energy meter, for the tested electrical energy pulse of the multiple tested direct current energy of parallel acquisition;
Described multiple way electric error calculating module is electrically connected with described full sized pules output module and the tested electrical energy pulse sampling module of described multichannel respectively, for calculating the electric energy error of each tested direct current energy meter respectively according to the standard electric energy impulse received and tested electrical energy pulse.
2. electric automobile charging pile direct current energy meter verification system according to claim 1, it is characterized in that, also comprise multi-epitope error display module, described multi-epitope error display module is electrically connected with described multiple way electric error calculating module, for receiving the electric energy error of multiple tested direct current energy meter and showing.
3. electric automobile charging pile direct current energy meter verification system according to claim 1, is characterized in that, the resource integrated device of described table also comprises man-machine conversation module, and described man-machine conversation module is electrically connected with described microprocessor.
4. electric automobile charging pile direct current energy meter verification system according to claim 1, is characterized in that, described tested electrical energy pulse comprises light pulse and electric pulse.
5. electric automobile charging pile direct current energy meter verification system according to claim 1, is characterized in that, described current source comprises direct access current source and shunt access type current source.
6. electric automobile charging pile direct current energy meter verification system according to claim 5, is characterized in that, the output current scope of described direct access current source is 1mA-600A; The output current scope of described shunt access type current source is 100 μ A-360mA.
7. electric automobile charging pile direct current energy meter verification system according to claim 1, is characterized in that, described full sized pules output module comprises modular converter, and described modular converter is used for converting performance number to standard electric energy impulse.
8. electric automobile charging pile direct current energy meter verification system according to claim 1, is characterized in that, the described standard electric energy impulse according to reception and tested electrical energy pulse calculate the electric energy error of each tested direct current energy meter respectively, specifically comprise:
Following formula is adopted to calculate the electric energy error of each tested direct current energy meter: δ
i=(m
i-m
0)/m
0* 100%, wherein, m
0for standard electric energy impulse, m
ibe the tested electrical energy pulse of i-th tested direct current energy meter, δ
iit is the electric energy error of i-th tested direct current energy meter.
9. electric automobile charging pile direct current energy meter verification system according to claim 8, is characterized in that, the tested electrical energy pulse m of described i-th tested direct current energy meter
ispecifically comprise:
M
i=R
i/ (a
h* C
i), wherein, R
ibe the revolution of i-th tested direct current energy meter, C
ibe the meter constant of i-th tested direct current energy meter, a
hfor the meter constant of standard direct current energy meter.
10. electric automobile charging pile direct current energy meter verification system according to claim 1, it is characterized in that, the quantity of tested direct current energy meter is six, and described multichannel tested electrical energy pulse sampling module and multiple way electric error calculating module are respectively the six tested electrical energy pulse sampling modules in road and six road electric energy error computing modules.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259532A (en) * | 2015-11-26 | 2016-01-20 | 云南电网有限责任公司电力科学研究院 | Electric vehicle charging pile DC electric energy meter calibration system |
| CN107290705A (en) * | 2017-07-14 | 2017-10-24 | 国网天津市电力公司电力科学研究院 | A kind of direct-current electric energy meter calibrating device |
| CN109001665A (en) * | 2018-06-15 | 2018-12-14 | 国网山西省电力公司计量中心 | A kind of calibration equipment suitable for charging equipment direct current energy |
| CN110865218A (en) * | 2019-10-14 | 2020-03-06 | 中物合(杭州)检测科技有限公司 | Electric energy metering method |
| CN112305487A (en) * | 2020-09-21 | 2021-02-02 | 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 | Laboratory error calibration system and method for digital direct current electric energy meter |
-
2015
- 2015-11-26 CN CN201520964617.5U patent/CN205139357U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259532A (en) * | 2015-11-26 | 2016-01-20 | 云南电网有限责任公司电力科学研究院 | Electric vehicle charging pile DC electric energy meter calibration system |
| CN107290705A (en) * | 2017-07-14 | 2017-10-24 | 国网天津市电力公司电力科学研究院 | A kind of direct-current electric energy meter calibrating device |
| CN109001665A (en) * | 2018-06-15 | 2018-12-14 | 国网山西省电力公司计量中心 | A kind of calibration equipment suitable for charging equipment direct current energy |
| CN110865218A (en) * | 2019-10-14 | 2020-03-06 | 中物合(杭州)检测科技有限公司 | Electric energy metering method |
| CN112305487A (en) * | 2020-09-21 | 2021-02-02 | 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 | Laboratory error calibration system and method for digital direct current electric energy meter |
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