CN201945641U - Distributed electric energy metering device of power transformation and distribution station - Google Patents
Distributed electric energy metering device of power transformation and distribution station Download PDFInfo
- Publication number
- CN201945641U CN201945641U CN201020544273XU CN201020544273U CN201945641U CN 201945641 U CN201945641 U CN 201945641U CN 201020544273X U CN201020544273X U CN 201020544273XU CN 201020544273 U CN201020544273 U CN 201020544273U CN 201945641 U CN201945641 U CN 201945641U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- interface
- bus
- transformer
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to a distributed electric energy metering device of a power transformation and distribution station. The distributed electric energy metering device comprises an electric energy metering unit, a controller area network (CAN) bus network and a centralized managing unit, wherein the electric energy metering unit is connected with the centralized managing unit by the CAN bus network. Compared with the prior art, the distributed electric energy metering device has the advantages that the operation situations of lines of the power transformation and distribution station can be monitored more comprehensively and intelligently, the load situations of various outgoing lines can be conveniently mastered independently, etc.
Description
Technical field
The utility model relates to a kind of electric energy metered system, especially relates to a kind of transformer and distribution power station distribution type electric energy measuring apparatus.
Background technology
The electric power meter of transformer and distribution power station operation at present is autonomous device mostly, rather than distributed system, so it is the unified metering of unit that electric energy metrical is mostly carried out with the station, leading-out terminal at transformer and distribution power station does not measure each road outlet electric energy, is not easy to grasp the line loss and the real-time load variations situation of each bar distribution line.
This traditional electric power meter does not possess the monitoring of power quality indexs such as harmonic wave simultaneously, and the widespread use of Power Electronic Technique at present, the harmonic wave of electric system is rolled up, cause the serious distortion of local voltage, current waveform, power quality problem has caused electric power enterprise and user's great attention.
Traditional in addition electric power meter does not generally possess graphical man-machine interface and telecommunications functions, is not easy to on-the-spot Installation and Debugging and remote data transmission.
So existing electric power meter is in data analysis, data storage, aspects such as data communication can not satisfy the intelligent demand that transformer and distribution power station improves day by day.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of transformer and distribution power station distribution type electric energy measuring apparatus for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of transformer and distribution power station distribution type electric energy measuring apparatus is characterized in that, comprises electric energy metrical unit, CAN bus network, centralized management unit, and described electric energy metrical unit is connected with the centralized management unit by the CAN bus network.
Described electric energy metrical unit is provided with a plurality of, and each electric energy metrical unit all is connected with the centralized management unit by the CAN bus network.
Described electric energy metrical unit comprises DSP, secondary mutual inductor, signal conditioning circuit, AD converter, data memory module, real-time clock module, CAN bus communication interface, electrical energy pulse output module, described DSP is connected with AD converter, data memory module, real-time clock module, CAN bus communication interface, electrical energy pulse output module respectively, described secondary mutual inductor is connected with signal conditioning circuit, and described signal conditioning circuit is connected with AD converter.
Described centralized management unit comprises processor, GPRS module, Ethernet interface, CAN bus interface, RS485 interface, touch-screen, and described processor is connected with GPRS module, Ethernet interface, CAN bus interface, RS485 interface, touch-screen respectively.
Described processor is the ARM9 series processors.
Compared with prior art, the utlity model has following advantage:
1, the electric energy metrical unit has power quality analysis, generates functions such as historical data curve automatically, and is more comprehensive and intelligent to the monitoring of transformer and distribution power station circuit operation conditions;
2, distributed multifunctional electric energy metrical unit is used for each road outlet is monitored respectively, is convenient to grasp separately the load condition of each road outlet;
3, the centralized management unit has graphical man-machine interface, is convenient to total system installation and debugging at the scene;
4, the centralized management unit have Ethernet (or GPRS module), the system of being convenient to data upload to higher level's generated energy acquisition system.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of electric energy metrical of the present utility model unit;
Fig. 3 is the structural representation of centralized management of the present utility model unit.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of transformer and distribution power station distribution type electric energy measuring apparatus comprises electric energy metrical unit 1, CAN bus network 2, centralized management unit 3, and described electric energy metrical unit 1 is connected with centralized management unit 3 by CAN bus network 2.Described electric energy metrical unit 1 is provided with a plurality of, and each electric energy metrical unit 1 all is connected with centralized management unit 3 by CAN bus network 2.
As shown in Figure 2, described electric energy metrical unit 1 comprises DSP 11, secondary mutual inductor 12, signal conditioning circuit 13, AD converter 14, data memory module 15, real-time clock module 16, CAN bus communication interface 17, electrical energy pulse output module 18, described DSP 11 is connected with AD converter 14, data memory module 15, real-time clock module 16, CAN bus communication interface 17, electrical energy pulse output module 18 respectively, described secondary mutual inductor 12 is connected with signal conditioning circuit 13, and described signal conditioning circuit 13 is connected with AD converter 14.DSP 11 is after AD converter 14 is obtained the continuous sampling data of three-phase voltage and three-phase current, and DSP carries out realizing following calculating by various digital algorithms after the pre-service to data:
1) basic electric parameters such as electric current, voltage, active power, reactive power, power factor;
2) electric energy metrical parameters such as meritorious electric weight, capacity of idle power, meritorious requirement, idle requirement;
3) power quality parameters such as mains frequency, rate of qualified voltage, harmonic wave, flickering, tri-phase unbalance factor.
And under the cooperation of RTC, generate the historical data curve automatically, be stored in device internal data store module 15.Each electric energy metrical unit 1 establishes a communications link with bus-network topology and centralized management unit 3 by CAN bus communication interface 17.And electrical energy pulse output module 18 is used for the verification of measuring accuracy.
CAN bus network 2 is internal system communication ports, and centralized management unit 3 is realized and the communicating by letter of electric energy metrical unit by CAN bus network 2.The network bus topology helps reducing the site operation workload, and the characteristics that while CAN bus has collision detection allow to have many host nodes on the bus, have greatly improved the reliability of bus communication.Limit by the driving force of driver, general every bus allows 32 nodes (the electric energy metrical unit adds the centralized management unit) at most.
As shown in Figure 3, described centralized management unit 3 comprises processor 31, GPRS module 32, Ethernet interface 33, CAN bus interface 34, RS485 interface 35, touch-screen 36, and described processor 31 is connected with GPRS module 32, Ethernet interface 33, CAN bus interface 34, RS485 interface 35, touch-screen 36 respectively.Described processor 31 is the ARM9 series processors.Ethernet interface 33 (or GPRS module 32) is used for data upload to higher level's generated energy acquisition system, CAN bus interface 34 is communication ports of centralized management unit 3 and electric energy metrical unit 1, and RS485 interface 35 then allows other intelligent apparatus of transformer and distribution power station to insert this system.
The utility model utilizes distributed multifunctional electric energy metering units 1, form a cover distribution type electric energy metering system by CAN bus network 2 and centralized management unit 3, realized the comprehensive monitoring of each road outlet electric energy metrical of transformer and distribution power station, the quality of power supply and each basic electric parameter, and all Monitoring Data have been uploaded to higher level's generated energy acquisition system in real time.
Claims (5)
1. a transformer and distribution power station distribution type electric energy measuring apparatus is characterized in that, comprises electric energy metrical unit, CAN bus network, centralized management unit, and described electric energy metrical unit is connected with the centralized management unit by the CAN bus network.
2. a kind of transformer and distribution power station distribution type electric energy measuring apparatus according to claim 1 is characterized in that described electric energy metrical unit is provided with a plurality of, and each electric energy metrical unit all is connected with the centralized management unit by the CAN bus network.
3. a kind of transformer and distribution power station distribution type electric energy measuring apparatus according to claim 1, it is characterized in that, described electric energy metrical unit comprises DSP, the secondary mutual inductor, signal conditioning circuit, AD converter, data memory module, real-time clock module, the CAN bus communication interface, the electrical energy pulse output module, described DSP respectively with AD converter, data memory module, real-time clock module, the CAN bus communication interface, the electrical energy pulse output module connects, described secondary mutual inductor is connected with signal conditioning circuit, and described signal conditioning circuit is connected with AD converter.
4. a kind of transformer and distribution power station distribution type electric energy measuring apparatus according to claim 1, it is characterized in that, described centralized management unit comprises processor, GPRS module, Ethernet interface, CAN bus interface, RS485 interface, touch-screen, and described processor is connected with GPRS module, Ethernet interface, CAN bus interface, RS485 interface, touch-screen respectively.
5. a kind of transformer and distribution power station distribution type electric energy measuring apparatus according to claim 4 is characterized in that described processor is the ARM9 series processors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020544273XU CN201945641U (en) | 2010-09-27 | 2010-09-27 | Distributed electric energy metering device of power transformation and distribution station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020544273XU CN201945641U (en) | 2010-09-27 | 2010-09-27 | Distributed electric energy metering device of power transformation and distribution station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945641U true CN201945641U (en) | 2011-08-24 |
Family
ID=44472981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020544273XU Expired - Fee Related CN201945641U (en) | 2010-09-27 | 2010-09-27 | Distributed electric energy metering device of power transformation and distribution station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945641U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419401A (en) * | 2010-09-27 | 2012-04-18 | 上海市电力公司 | Distributed electrical energy metering system for transformer substations and power distribution substations |
| CN102981070A (en) * | 2011-09-07 | 2013-03-20 | 上海久隆电力科技有限公司 | Electric energy comprehensive information collecting system |
| CN103048531A (en) * | 2011-10-13 | 2013-04-17 | 深圳市安贝尔科技有限公司 | Current sensor of CAN (controller area network) bus interface for mine |
| CN103454490A (en) * | 2012-05-28 | 2013-12-18 | 湖南省电力公司科学研究院 | Intelligent metering system and intelligent metering method on basis of Blackman-harris window spectrum correction |
| CN112014634A (en) * | 2020-08-21 | 2020-12-01 | 国核电力规划设计研究院重庆有限公司 | Multi-loop bidirectional dynamic electric energy metering device and method |
-
2010
- 2010-09-27 CN CN201020544273XU patent/CN201945641U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419401A (en) * | 2010-09-27 | 2012-04-18 | 上海市电力公司 | Distributed electrical energy metering system for transformer substations and power distribution substations |
| CN102981070A (en) * | 2011-09-07 | 2013-03-20 | 上海久隆电力科技有限公司 | Electric energy comprehensive information collecting system |
| CN103048531A (en) * | 2011-10-13 | 2013-04-17 | 深圳市安贝尔科技有限公司 | Current sensor of CAN (controller area network) bus interface for mine |
| CN103454490A (en) * | 2012-05-28 | 2013-12-18 | 湖南省电力公司科学研究院 | Intelligent metering system and intelligent metering method on basis of Blackman-harris window spectrum correction |
| CN112014634A (en) * | 2020-08-21 | 2020-12-01 | 国核电力规划设计研究院重庆有限公司 | Multi-loop bidirectional dynamic electric energy metering device and method |
| CN112014634B (en) * | 2020-08-21 | 2024-02-09 | 国核电力规划设计研究院重庆有限公司 | Multi-loop bidirectional dynamic electric energy metering device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201945641U (en) | Distributed electric energy metering device of power transformation and distribution station | |
| CN105471109A (en) | Intelligent power consumption management system facing household wind and solar energy mutual-complementing power station and management method thereof | |
| CN105305577A (en) | Active intelligent charging pile not based on communication system, and intelligent charging method therefor | |
| CN105958647A (en) | Comprehensive measurement and regulation-control apparatus and method for active power distribution network | |
| CN202150179U (en) | System for monitoring electricity consumption of ship of shore power supply system in real time | |
| CN106093558A (en) | Electric energy acquisition terminal ERTU scheme for the metering of flexible direct current power transmission system efficiency | |
| CN110927447A (en) | Multi-core-modularization-based station area six-branch loss monitoring device and monitoring method | |
| CN201270432Y (en) | Synthetic electricity distribution box apparatus | |
| CN202721469U (en) | Direct-current charger of electric automobile | |
| CN201323472Y (en) | Distribution transformer monitoring device | |
| CN102419401A (en) | Distributed electrical energy metering system for transformer substations and power distribution substations | |
| CN104198953B (en) | Two-way operational testing system and method for electric automobile charge-discharge device | |
| CN211480995U (en) | Distributed resource aggregation device and system | |
| CN202870219U (en) | Intelligent power quality monitoring system | |
| CN202330594U (en) | Computer program-controlled testing platform for intelligent distribution transformer terminal | |
| CN205283260U (en) | Online monitored control system of power module based on cloud ware | |
| CN207114690U (en) | A kind of distribution network failure rushes to repair scheduling system | |
| CN201819954U (en) | 0.5-level single-phase electronic energy meter | |
| CN201984110U (en) | Power equipment with remote electric energy measuring device and measuring device and measuring system | |
| CN202141767U (en) | Multifunctional metering device capable of monitoring electric energy quality | |
| CN104333016A (en) | Dispersing type reactive compensation system for low-voltage power distribution network | |
| CN103454531A (en) | System and method for monitoring electricity consumption for production of formation aluminum foil | |
| CN106933116B (en) | Micro-grid simulation debugging method with MATLB interface | |
| CN210514436U (en) | Multi-loop ammeter for base station | |
| CN202150738U (en) | Remote monitoring system for reactive power compensator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20110927 |