CN202422401U - Electric energy quality type energy efficiency data collecting terminal - Google Patents
Electric energy quality type energy efficiency data collecting terminal Download PDFInfo
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- CN202422401U CN202422401U CN2011203955995U CN201120395599U CN202422401U CN 202422401 U CN202422401 U CN 202422401U CN 2011203955995 U CN2011203955995 U CN 2011203955995U CN 201120395599 U CN201120395599 U CN 201120395599U CN 202422401 U CN202422401 U CN 202422401U
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Abstract
本实用新型提供了一种电能质量型能效数据采集终端，该终端包括外壳、MCU模块、与所述MCU模块连接的电源存储模块，与所述MCU模块分别连接的AD转换模块和通信模块；其中，所述通信模块选自RS485接口、PLC单元或微功率无线单元。本实用新型所提供的电能质量型能效数据采集终端，通过集群式部署，可以对多种电量参数进行采集。
The utility model provides a power quality type energy efficiency data acquisition terminal, the terminal includes a shell, an MCU module, a power storage module connected to the MCU module, an AD conversion module and a communication module respectively connected to the MCU module; wherein , the communication module is selected from RS485 interface, PLC unit or micro-power wireless unit. The power quality type energy efficiency data collection terminal provided by the utility model can collect various power parameters through cluster deployment.
Description
Technical field
The utility model relates to a kind of electrotechnical instrument and meter industry efficiency harvester, specifically relates to a kind of quality of power supply type efficiency data collection station.
Background technology
The scarcity of basic technology and basic data has brought very big obstacle for the overall development of energy-conservation industry in the prior art.The efficiency basic data is to estimate the key of all power-saving technology effects accurately.Current various energy-conservation data, ability effective information confusion bring a lot of hidden danger for energy-conservation industry.Therefore; Demand urgently setting up unified efficiency data center, obtain comprehensive energy-conservation service industry data, support and technical guarantee for energy-conservation industry development provides data; Energy-conservation project monitored with energy-conservation service organization assess, for country and mechanism of governments at all levels energy saving policy provide support.
The efficiency basic data mainly depends on field real-time acquisition accurately, and the special-purpose acquisition terminal of need employing is gathered and transmitted.Actual field exists many such as electrical quantitys such as phase/line voltage/current, power factor, fundamental power, harmonic powers, and the real-time collection effect of these parameters directly influences the reliability of efficiency analysis result.Therefore, demand developing a kind of real-time quality of power supply type efficiency data collection station that satisfies industry spot and efficiency monitoring requirement urgently.
The patent No. is the special change acquisition terminal that the utility model of ZL201020214236.2 has disclosed a kind of installed module communication module, in order to gather the device of special change user energy information.The remote communication module and the signal extension interface module of solidifying in the said special change acquisition terminal all are designed to the module of plug-in, and formulate unified pin.
The patent No. is that the utility model of ZL200920069055.2 has disclosed a kind of wireless data acquisition terminal, and this terminal comprises radio frequency identification module, main control module and communication module, to realize the wireless collection and the wireless transmission of data.
The patent No. is that the utility model of ZL200920279096.4 has disclosed a kind of managing electric quantity system and uses acquisition terminal, so that dispose and expansion.
The patent No. is that the utility model of ZL200920236498.6 has disclosed a kind of acquisition terminal that is used for low-voltage power user automatic meter reading system, can in main website, operate, and realizes the remote system renewal.
Above utility model is that the research and development of quality of power supply type efficiency data collection station provide technical foundation, but does not reach the requirement that concentrating type deployment, numerous types of data collection, multiple interfaces transmission etc. adapt to industry spot efficiency harmonic wave electric quantity acquisition fully.
The utility model content
In order to overcome above-mentioned defective, the utility model provides a kind of quality of power supply type efficiency data collection station, disposes through concentrating type, can gather multiple harmonic wave electrical parameter.
For realizing above-mentioned purpose; The utility model provides a kind of quality of power supply type efficiency data collection station; Said acquisition terminal comprises: shell, MCU module, the power storage module that is connected with said MCU module; Its improvements are, the AD modular converter and the communication module that are connected respectively with said MCU module; Above-mentioned whole module all is arranged in the said shell.
In the optimal technical scheme that the utility model provides, the said power storage module of said MCU module controls, AD modular converter and communication module, and connect the parameter that said AD modular converter transmits.
In second optimal technical scheme that the utility model provides, said power storage module comprises direct supply, accessory power supply and data-carrier store.
In the 3rd optimal technical scheme that the utility model provides, said AD modular converter is the chip of model ADS1178.
In the 4th optimal technical scheme that the utility model provides, said communication module comprises RS485 and expansion interface; Said expansion interface can insert PLC unit or micropower radio-cell according to communication requirement.
In the 5th optimal technical scheme that the utility model provides, said shell is provided with the display device that shows the parameter collect and the auxiliary terminal of image data; Said display device is connected with said MCU module, and said auxiliary terminal is connected with said AD modular converter, said sensor assembly and said communication module respectively.
In the 6th optimal technical scheme that the utility model provides, said MCU module is that model is the chip of AT91SAM9260.
In the 7th optimal technical scheme that the utility model provides, said data-carrier store is that model is the chip of AT24C64.
In the 8th optimal technical scheme that the utility model provides, said PLC unit is that model is the chip of 74HTC244, and said micropower radio-cell is that model is the chip of CC1100.
In the 9th optimal technical scheme that the utility model provides, said display device is 2048 dichroic liquid crystal display screens, and size is 3.5 inches.
With the prior art ratio; The technical scheme that the utility model provides can be according to the actual needs of efficiency test and appraisal; Not only solved a data acquisition of quality of power supply electric weight type efficiency and a transmission difficult problem, and the power quality analysis flexible function, satisfy the purpose that real-time efficiency is monitored fully; Quality of power supply type efficiency data collection station has been realized demonstration and the multiple interfaces safety of multiple electric energy information, stable, transmission reliably; Make the real-time collection and the transmission of efficiency harmonic wave electric weight type data become possibility; Particularly 2 to 19 subharmonic are gathered in real time, solved the high shortcoming of application intelligent ammeter cost, be suitable for popularizing in an all-round way; And can be efficiency data center efficiency basic data accurately is provided, for energy saving policy provides technical support; In addition, this terminal has also taken into full account the different operating environmental demand, can select signal transmission such as the wireless or PLC of micropower like communication mode, and realizes that Based Intelligent Control stays expansion interface for following main website; Moreover; Said acquisition terminal strong interference immunity; The electro-magnetic screen layer that is adopted possesses and improves careful electromagnetic Compatibility Design, can make acquisition terminal when rugged surroundings such as high low temperature, high pressure and high humidity are moved, exempt electromagnetic interference (EMI), also possesses and improves three grades of careful lightning protection measures.
Description of drawings
Fig. 1 is the inner structure synoptic diagram of quality of power supply type efficiency data collection station.
Fig. 2 is the anterior synoptic diagram of acquisition terminal shell.
Fig. 3 is the rear portion and the side schematic view of acquisition terminal shell.
Fig. 4 is the auxiliary terminal synoptic diagram.
Fig. 5 is the long-range local synoptic diagram of RS485 interface.
Fig. 6 is the long-range local synoptic diagram of PLC unit and micropower radio-cell.
Embodiment
Extremely shown in Figure 4 like Fig. 1; Said quality of power supply type efficiency data collection station is gathered phase voltage, phase current and the neutral current analog quantity of voltage sensor, current sensor, obtains power, power factor, frequency, the humorous information such as electric energy that involves through AD modular converter calculation process.Realize the data operation storage and management by micro-control unit (MCU), realize uplink communication through modes such as RS485 interface, PLC or micropower are wireless again.
Said micro-control unit (MCU) adopts the AT91SAM9260 with ARM9 kernel as MCU, and the highest frequency of AT91SAM9260 can reach 180MHZ.
Said AD modular converter adopts the ADS1178 analog to digital converter of TI, and this converter precision has reached 16, and switching rate reaches as high as 52kSPS, to guarantee speed and the precision when carrying out Harmonics Calculation.
Said micro-control unit (MCU) module is the core of whole terminal, and said MCU module is that model is the chip of AT91SAM9260; Said MCU module handle to realize the record of following incident and following function through data operation: harmonic wave 1 curve, harmonic wave 2 curves, voltage/current curve, powertrace, the out-of-limit incident of harmonic wave, harmonic power curve, the out-of-limit incident of ABC current/voltage deviation, decompression/defluidization incident, voltage/current degree of unbalancedness curve, flickering curve, stride that monthly billing, electric flux are freezed, powered on, when power down, zero clearing, the phase failure and school.
Wherein, said harmonic wave 1 curve is meant that the curve to 2 to 19 times harmonic wave and the total percent harmonic distortion THDU of correspondent voltage, the total percent harmonic distortion THDI of electric current carries out record;
Said harmonic wave 2 curves are meant that the curve to 20 to 50 times harmonic wave and the total percent harmonic distortion THDU of correspondent voltage, the total percent harmonic distortion THDI of electric current carries out record;
Said power loss event is meant that three-phase voltage all is lower than the electric energy meter critical voltage, and load current is not more than the operating mode of 5% rated current.
Said decompression is meant that in three-phase power supply system certain phase load electric current is greater than starting current, but the voltage of voltage circuit is lower than at 78% o'clock of the electric energy meter reference voltage, and the duration was greater than 1 minute.
Said defluidization is meant in three-phase power supply system, and three-phase voltage is greater than the critical voltage of electric energy meter, and arbitrary phase or two is less than starting current in the three-phase current, and other phase line load currents are greater than the operating mode of 5% rated current.
Said electric flux freezes incident and is meant the current electric flux that freezes is notified.
To voltage/current curve, powertrace, the out-of-limit incident of harmonic wave, harmonic power curve, the out-of-limit incident of ABC current/voltage deviation, voltage/current degree of unbalancedness curve, flickering curve, stride monthly billing, power on, the record when zero clearing, the phase failure and school all meets following national standard: GB12326-2000 standard, GB12325-2003 standard, GB/T 14549-1993 standard and GB/T 15945-1995 standard.
Wherein, the out-of-limit incident of said harmonic wave, the out-of-limit incident of voltage/current degree of unbalancedness, the out-of-limit logout of ABC current/voltage deviation are according to the field electric energy quality requirements, through installing in the equipment under the above-mentioned standard limited value, realize the power quality analysis function.
Wherein, said curve record is copied and accepted the time interval to default to 15min, and other numerical value can be set flexibly.
Like Fig. 5, shown in 6; Said communication module is utilized one of them in RS485 interface, micropower radio-cell or the PLC unit; Wherein the RS485 interface is as the standard configuration interface of instrument; Micro power radio module and PLC module are designed to the form of pluggable expansion interface, on instrument, use same interface standard, so that use the respective communication module according to environment difference and cost.Said RS485 interface also can be used as the maintenance interface that parameter is provided with.
Wherein, said PLC unit is that model is the chip of 74HTC244; Said micropower radio-cell is that model is the chip of CC1100.
The specification of said CC1100 chip is: working frequency range: 402～470mhz; Little emissive power: maximum transmission power 10mw; Quiescent current＜10ua; Said CC1100 chip is supported the high precision compensation crystal; Can carry out multichannel such as 8/16/32 channel selects and has a multiple user interface such as rs232/rs485/uart interface; And support traffic rate such as 1200/2400/4800/9600/19200/38400bps; Support communication formats such as 8n1,8e1, also can accomplish receiving automatically, fast/send out mode switch, be user-friendly to.
Said quality of power supply type efficiency data collection station taked soft clock and network to the time the intensive mode that combines design, reduce hardware configuration complexity and power consumption, make operating ambient temperature, humidity, atmospheric pressure all satisfy power information acquisition system standard; For reducing installation cost, can adopt the chip clock.
Carry out in data acquisition and the storage operation at said quality of power supply type efficiency data collection station, because this acquisition terminal does not measure usefulness as chargeing, acquisition precision is according to the equipment B class precision.Perhaps the acquisition terminal precision reaches 2 class precisions that are not less than of (GB/T 17215.321-2008/IEC 62053-21:2003) regulation.Curve record is copied and accepted the time interval and is defaulted to 15min, and can be provided with flexibly; According to the size of the data volume of being gathered, select suitable storage device size.
What wherein, said data-carrier store used is the chip of model as AT24C64; Quality of power supply electric weight type efficiency acquisition terminal is not owing to adopt the concentrator image data; So said data-carrier store preserve data time be designed to store 30 multiply by 96 points curve data; When not storing 20-50 subharmonic data, 530 Byte of each some storage need 1491K altogether; If need storage 20-50 subharmonic data, then need increase the storage space of 1308K again.
The shell of said quality of power supply type efficiency data collection station is coated with electro-magnetic screen layer; Said electro-magnetic screen layer is formed by electroconductive polymer layer; Said electroconductive polymer layer can be the material with solubility or dispersiveness, as: polyaniline, polythiophene and polyparaphenylene; Said electroconductive polymer layer is preferably processed by polyethylene dioxythiophene.
The size of said quality of power supply type efficiency data collection station can be long 260mm to 270mm, wide 165mm to 175mm, high 70mm to 80mm; Most preferred being of a size of: long 265mm, wide 170mm, high 75mm.
What need statement is that the utility model content and embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the qualification to the utility model protection domain.Those skilled in the art can do various modifications, be equal to replacement or improvement under the spirit and principle inspiration of the utility model.But these changes or modification are all in the protection domain that application is awaited the reply.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203955995U CN202422401U (en) | 2011-10-18 | 2011-10-18 | Electric energy quality type energy efficiency data collecting terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203955995U CN202422401U (en) | 2011-10-18 | 2011-10-18 | Electric energy quality type energy efficiency data collecting terminal |
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| CN202422401U true CN202422401U (en) | 2012-09-05 |
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| CN2011203955995U Expired - Lifetime CN202422401U (en) | 2011-10-18 | 2011-10-18 | Electric energy quality type energy efficiency data collecting terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056609A1 (en) * | 2011-10-18 | 2013-04-25 | 中国电力科学研究院 | Electric energy quality type energy efficiency data acquisition terminal |
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2011
- 2011-10-18 CN CN2011203955995U patent/CN202422401U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013056609A1 (en) * | 2011-10-18 | 2013-04-25 | 中国电力科学研究院 | Electric energy quality type energy efficiency data acquisition terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |