CN106841742A - The Power Quality Monitor Device of multiloop data can be gathered - Google Patents
The Power Quality Monitor Device of multiloop data can be gathered Download PDFInfo
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- CN106841742A CN106841742A CN201510880158.7A CN201510880158A CN106841742A CN 106841742 A CN106841742 A CN 106841742A CN 201510880158 A CN201510880158 A CN 201510880158A CN 106841742 A CN106841742 A CN 106841742A
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- power quality
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- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000007726 management method Methods 0.000 description 11
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of Power Quality Monitor Device for gathering multiloop data, including MCU, communication module, threephase potential transformer, multiple threephase current transformers and respectively with the one-to-one polylith computation chip of multiple threephase current transformers；The output end of threephase potential transformer is electrically connected with the voltage measurement signal input of polylith computation chip respectively, the output end of multiple threephase current transformers is electrically connected with the current measurement signal input of polylith computation chip respectively correspondingly, polylith computation chip is two-way with MCU to be electrically connected, and MCU is two-way with communication module to be electrically connected.The present invention is easily installed and wiring, while can reduce taking up room, reduces manufacturing cost.
Description
Technical field
The present invention relates to power technology, more particularly to Power Quality Monitor Device.
Background technology
Energy efficiency management system is the power consuming administrative system that country advocates energetically to alleviate the immense pressure of energy shortage and environmental degradation in recent years, it is to use electric unit, especially the technological means and management method of the most effective and most economical energy efficiency of high energy consumption enterprise, can produce economic and social double benefit.
Power Quality Monitor Device is important part in energy efficiency management system, and it occupies definitely many quantity in systems, is that the normal operation of energy efficiency management system played an important role.Fig. 1 shows the composition frame chart of the energy efficiency management system for generally using at present.From figure 1 it appears that current energy efficiency management system generally employs single loop Power Quality Monitor Device, single loop Power Quality Monitor Device is only responsible for gathering the electricity consumption data of power load all the way.And as a rule, a distribution box（Cabinet）Need to control the power load on several roads, therefore several single loop Power Quality Monitor Devices are needed to carry out Monitoring Data, and a serial server is employed in each distribution box to be connected with RS485 mouthfuls of these Power Quality Monitor Devices, it is connected with control centre by the network switch of Ethernet again, control centre carries out data exchange by the communication equipments such as the network switch and serial server and Power Quality Monitor Device.
Fig. 2 shows the theory diagram of existing single loop Power Quality Monitor Device.As shown in Fig. 2 existing single loop Power Quality Monitor Device is mainly made up of MCU91, memory module 92, display module 93, RS485 communication modules 94, power module 95, threephase potential transformer 96, threephase current transformer 97, computation chip 98 etc..MCU91 is responsible for coordinating the work of other units, it from the inner read voltage of computation chip 98, electric current, power, electricity value, by calculating the data such as harmonic wave, phase angle, power factor, and judge decompression, disconnected equivalent state, then in storing that data in memory module 92, and shown working condition by display module 93, in addition, MCU91 is also responsible for tissue message, communicated with the control centre of energy efficiency management system by RS485 communication modules, the data and state reporting for will gather, calculating are to control centre.From figure 1 it appears that Power Quality Monitor Device is connected by RS485 mouthfuls with external serial server, then it is connected with the network switch by Ethernet, is eventually connected to control centre.The major function of threephase potential transformer 96 is, according to certain no-load voltage ratio, to be accurately transformed into low voltage signal by the high voltage of measurement point, to meet the input requirements of computation chip 98.The major function of threephase current transformer 97 is, according to certain no-load voltage ratio, to be accurately transformed into low current signal by the high current of measurement point, to meet the input requirements of computation chip 98.Computation chip 98 can gather three-phase voltage, the virtual value of three-phase current and active power, reactive power, apparent energy, the data such as electricity, and these data are sent to MCU91 by SPI serial communication ports, while the instantaneous sampling point that it can also export synchronized sampling is used for Harmonics Calculation to MCU91.
General distribution box（Cabinet）Inner space is all little, also to install many other equipment, even volume slightly larger power distribution cabinet also seems crowded when being arranged on multiple single loop Power Quality Monitor Devices and serial server, the let alone smaller distribution box of volume.Additionally, the electricity consumption data that each Power Quality Monitor Device can only gather a loop also improves the number of devices and cost of whole system.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of Power Quality Monitor Device for gathering multiloop data, and it is easily installed, while can reduce taking up room, reduce manufacturing cost.
In order to solve the above technical problems, the technical solution used in the present invention is：
Can gather the Power Quality Monitor Device of multiloop data, including MCU, communication module, threephase potential transformer, multiple threephase current transformers and respectively with the one-to-one polylith computation chip of multiple threephase current transformers；The output end of threephase potential transformer is electrically connected with the voltage measurement signal input of polylith computation chip respectively, the output end of multiple threephase current transformers is electrically connected with the current measurement signal input of polylith computation chip respectively correspondingly, polylith computation chip is two-way with MCU to be electrically connected, and MCU is two-way with communication module to be electrically connected.
After adopting the above technical scheme, the present invention at least has advantages below：
1st, install and wiring more facilitates.Because a Power Quality Monitor Device for gathering multiloop data of the invention can replace existing many single loop Power Quality Monitor Devices, therefore the workload installed with wiring is greatly reduced, and without install serial server again；
2nd, installing space is saved, manufacturing cost is reduced.In the Power Quality Monitor Device for gathering multiloop data of the invention, the resources such as power module, MCU, display module, memory module, voltage transformer realize shared, therefore, in the case of the loop quantity identical to be measured, one volume of Power Quality Monitor Device of the invention is more much smaller than the volume sum of existing many single loop Power Quality Monitor Devices, and the function of realization is then just the same, while manufacturing cost is also greatly lowered.
Brief description of the drawings
Fig. 1 is the theory diagram of existing energy efficiency management system.
Fig. 2 shows the theory diagram of existing single loop Power Quality Monitor Device.
Fig. 3 is the theory diagram of the Power Quality Monitor Device for gathering multiloop data according to an embodiment of the invention.
Fig. 4 shows the theory diagram of the energy efficiency management system for employing the Power Quality Monitor Device for gathering multiloop data according to an embodiment of the invention.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 3 shows the theory diagram for employing the Power Quality Monitor Device for gathering multiloop data according to an embodiment of the invention.As shown in figure 3, the Power Quality Monitor Device that multiloop data can be gathered include MCU1, memory module 2, display module 3, communication module 4,5, threephase potential transformer 6 of power module, multiple threephase current transformer 7 and respectively with the one-to-one polylith computation chip 8 of multiple threephase current transformers 7.
Memory module 2 is two-way with MCU1 to be electrically connected.The input of display module 3 is electrically connected with the output end of MCU1.Power module 5 is used to be powered to MCU1 and polylith computation chip 8.The output end of threephase potential transformer 6 is electrically connected with the voltage measurement signal input of polylith computation chip respectively, the output end of multiple threephase current transformers 7 is electrically connected with the current measurement signal input of polylith computation chip 8 respectively correspondingly, polylith computation chip 8 is two-way with MCU1 to be electrically connected, and MCU1 is two-way with communication module 4 to be electrically connected.
The each side such as cost volume from actual field situation and equipment factor considers, preferably, in the present embodiment, the quantity of threephase current transformer 7 is four, the quantity of computation chip 8 is four pieces, such that it is able to realize measuring the electric current of 4 mutually different measuring loops.On the other hand, due in same distribution box（Cabinet）Xia Ge roads power load is under same inlet wire, voltage is identical, therefore, in the present embodiment, a threephase potential transformer 6 is use only to gather common voltage, voltage input signal is divided into 4 tunnels after 1 threephase potential transformer by 1 tunnel, and four pieces of computation chips 8 are input into respectively.Advantage of this is that wiring quantity can be reduced, it is possible to reduce the volume of binding post.Four pieces of computation chips 8 measure the electricity consumption datas such as electric current, voltage, power, the electricity of four tunnel power loads respectively, and these data are sent into MCU1 by SPI serial communication ports.
In the present embodiment, communication module 4 is the ethernet communication module with ethernet communication function, that replaces existing RS485 communication modules, such that it is able to save the equipment such as serial server, has saved cost, and save distribution box（Cabinet）Inner space.Fig. 4 shows the theory diagram of the energy efficiency management system for employing the Power Quality Monitor Device for gathering multiloop data according to an embodiment of the invention.Fig. 4 and Fig. 1 is contrasted, it can be seen that serial server is eliminated using the energy efficiency management system of the Power Quality Monitor Device of the gathered multiloop data of the application, while in each distribution box（Cabinet）In only be provided with a Power Quality Monitor Device.
Claims (5)
1. the Power Quality Monitor Device of multiloop data can be gathered, it is characterised in that including MCU, communication module, threephase potential transformer, multiple threephase current transformers and respectively with the described one-to-one polylith computation chip of multiple threephase current transformers；
The output end of the threephase potential transformer is electrically connected with the voltage measurement signal input of polylith computation chip respectively, the output end of the multiple threephase current transformer is electrically connected with the current measurement signal input of polylith computation chip respectively correspondingly, the polylith computation chip is two-way with the MCU to be electrically connected, and the MCU is two-way with the communication module to be electrically connected.
2. the Power Quality Monitor Device for gathering multiloop data according to claim 1, it is characterised in that the communication module is ethernet communication module.
3. the Power Quality Monitor Device for gathering multiloop data according to claim 2, it is characterised in that the quantity of the threephase current transformer is four.
4. the Power Quality Monitor Device for gathering multiloop data according to claim 1, it is characterised in that the Power Quality Monitor Device for gathering multiloop data includes memory module, and the memory module is two-way with the MCU to be electrically connected.
5. the Power Quality Monitor Device for gathering multiloop data according to claim 1, it is characterised in that the Power Quality Monitor Device for gathering multiloop data includes display module, the input of the display module is electrically connected with the output end of the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880158.7A CN106841742A (en) | 2015-12-06 | 2015-12-06 | The Power Quality Monitor Device of multiloop data can be gathered |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510880158.7A CN106841742A (en) | 2015-12-06 | 2015-12-06 | The Power Quality Monitor Device of multiloop data can be gathered |
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| CN106841742A true CN106841742A (en) | 2017-06-13 |
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| CN201510880158.7A Pending CN106841742A (en) | 2015-12-06 | 2015-12-06 | The Power Quality Monitor Device of multiloop data can be gathered |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248741A (en) * | 2017-06-26 | 2017-10-13 | 重庆大学 | A kind of metering separate distribution box with distribution, metering separate, storage and output function |
| CN108512304A (en) * | 2018-04-12 | 2018-09-07 | 中国建筑第二工程局有限公司 | Electric intelligent management monitoring system and method is faced in a kind of construction site |
| CN108594736A (en) * | 2018-01-11 | 2018-09-28 | 重庆市东泰电器实业有限公司 | Electric power energy consumption monitoring system and method |
| CN110112832A (en) * | 2019-06-05 | 2019-08-09 | 国网江苏省电力有限公司检修分公司 | A kind of state acquisition system and method for all-fiber current transformator |
| CN111308191A (en) * | 2020-03-26 | 2020-06-19 | 国家能源集团宁夏煤业有限责任公司 | Coal mine electric energy metering system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204116475U (en) * | 2014-07-23 | 2015-01-21 | 江苏斯菲尔电气股份有限公司 | A kind of multiloop multifunctional electric meter |
| CN205301409U (en) * | 2015-12-06 | 2016-06-08 | 上海协同科技股份有限公司 | Can gather electric energy monitoring devices of multiloop data |
-
2015
- 2015-12-06 CN CN201510880158.7A patent/CN106841742A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204116475U (en) * | 2014-07-23 | 2015-01-21 | 江苏斯菲尔电气股份有限公司 | A kind of multiloop multifunctional electric meter |
| CN205301409U (en) * | 2015-12-06 | 2016-06-08 | 上海协同科技股份有限公司 | Can gather electric energy monitoring devices of multiloop data |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248741A (en) * | 2017-06-26 | 2017-10-13 | 重庆大学 | A kind of metering separate distribution box with distribution, metering separate, storage and output function |
| CN108594736A (en) * | 2018-01-11 | 2018-09-28 | 重庆市东泰电器实业有限公司 | Electric power energy consumption monitoring system and method |
| CN108512304A (en) * | 2018-04-12 | 2018-09-07 | 中国建筑第二工程局有限公司 | Electric intelligent management monitoring system and method is faced in a kind of construction site |
| CN110112832A (en) * | 2019-06-05 | 2019-08-09 | 国网江苏省电力有限公司检修分公司 | A kind of state acquisition system and method for all-fiber current transformator |
| CN111308191A (en) * | 2020-03-26 | 2020-06-19 | 国家能源集团宁夏煤业有限责任公司 | Coal mine electric energy metering system |
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