CN202042948U - Intelligent load monitoring and early-warning system for distribution network - Google Patents
Intelligent load monitoring and early-warning system for distribution network Download PDFInfo
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- CN202042948U CN202042948U CN2011201621260U CN201120162126U CN202042948U CN 202042948 U CN202042948 U CN 202042948U CN 2011201621260 U CN2011201621260 U CN 2011201621260U CN 201120162126 U CN201120162126 U CN 201120162126U CN 202042948 U CN202042948 U CN 202042948U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to an intelligent load monitoring and early-warning system for a distribution network. The system comprises a voltage and current sensor, a filtering unit, an A/D (analog-digital) conversion unit, a CPU (central processing unit), a keyboard, a PUM (power management unit), a storage battery, a GSM (global system for mobile) communication unit I, a GSM communication unit II and a PC (personal computer). In the system, the voltage and current sensor arranged on a distribution transformer measures voltage and current signals so as to calculate the load information of the distribution transformer and judge whether the monitored transformer is underloaded or overloaded, so as to realize the load monitoring and the early warning for the distribution network. The system has the characteristics of low power consumption, good intuition, good simplification and convenience and the like and can effectively reduce damages and accidents caused by underloading or overloading of the distribution transformer.
Description
Technical Field
The utility model relates to an electric power system load monitoring field, in particular to load monitoring and early warning of distribution network.
Background
With the continuous development of urban construction, urban power load is increasing day by day, and the requirement on power supply reliability is higher and higher. Some important loads cause significant economic loss even if power is cut off briefly, which puts higher demands on the urban distribution network. However, the existing load monitoring system is only performed for large transformers, and a unified load monitoring system for distribution transformers in a distribution network, particularly in a city, does not exist. However, the capacity of the urban distribution transformer is relatively small, and the urban development is fast, so that the urban distribution transformer is easy to overload, thereby causing power failure accidents and causing great economic loss.
In view of the problems in reality, a device which has low power consumption and a simple structure, can accurately measure the load of a distribution transformer in real time and provides early warning for an overloaded or lightly loaded transformer is needed. The utility model discloses mainly utilize the voltage of installing on distribution transformer, current sensor measures distribution transformer's voltage, current signal, the signal filtering that will gather, after the digitization, send into central information processor and handle, calculate the load that reachs distribution transformer, and judge whether underload or overload of monitoring transformer, then send its load information and decision result to information center by wireless communication module, and show on information center's computer, realize the load monitoring to distribution network.
Disclosure of Invention
The utility model aims at providing a distribution network intelligent load monitoring and early warning system, this system are fit for carrying out real-time on-line monitoring to the distribution network, can monitor the change of distribution network load at any time, in time discover distribution transformer underload or the overload condition, and this can reduce electric power operation accident, improve the power supply reliability, guarantee power equipment's safe operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the intelligent load monitoring and early warning system of the power distribution network comprises a voltage and current sensor, a filtering unit, an analog-to-digital conversion unit, a central information processor, a keyboard, a power management unit, a storage battery, a GSM communication unit I, a GSM communication unit II and a PC (personal computer); wherein,
the output end of the voltage and current sensor is connected with the input end of the filtering unit, and the output end of the filtering unit is connected with the input end of the analog-to-digital conversion; the central information processor is respectively connected with the keyboard, the analog-to-digital conversion unit, the GSM communication unit I and the power management unit; the storage battery is connected with the power management unit, and the PC is connected with the GSM communication unit II; and the GSM communication unit I and the GSM communication unit II realize the sending and receiving of data in a wireless communication mode.
The utility model discloses owing to above-mentioned structure, its advantage: (1) has the characteristics of intuition, rapidness, simplicity and convenience and the like; (2) the defect that load information carried by a distribution transformer cannot be obtained in the past is overcome; (3) the system has low cost and high reliability, and has obvious effect on reducing the loss and accidents caused by light load or overload of the distribution transformer.
Drawings
The device of the invention can be further illustrated by means of non-limiting examples given in the attached drawings,
fig. 1 is a block diagram of the system structure of the present invention;
FIG. 2 is a flow chart of the operation of the present invention;
in the figure: 1-a voltage current sensor; 2-a central information processor; 3.1-GSM communication unit I; 3.2-GSM communication unit II; 4-a filtering unit; 5-an analog-to-digital conversion unit; 6-a power management unit; 7-a storage battery; 8-a keyboard; 9-PC.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, an intelligent load monitoring and early warning system for a power distribution network comprises a voltage and current sensor 1, a filtering unit 4, an analog-to-digital conversion unit 5, a central information processor 2, a keyboard 8, a power management unit 6, a storage battery 7, a GSM communication unit i 3.1, a GSM communication unit ii 3.2 and a PC 9; wherein,
the output end of the voltage and current sensor 1 is connected with the input end of the filtering unit 4, and the output end of the filtering unit 4 is connected with the input end of the analog-to-digital conversion 5; the central information processor 2 is respectively connected with a keyboard 8, an analog-to-digital conversion unit 5, a GSM communication unit and a power management unit 6; the storage battery 7 is connected with the power management unit 6, and the PC 9 is connected with the power management unit; and the GSM communication unit I3.1 and the GSM communication unit II 3.2 realize data transmission and reception in a wireless communication mode.
Wherein, the central information processor 2 adopts PIC18F2520 of Microchip company; the GSM data communication unit I3.1 and the GSM communication unit II 3.2 both adopt TC35i produced by Siemens company; the storage battery 7 is powered by an LC-XD1217 storage battery produced under the loose state; the power management circuit 6 adopts a power conversion chip AMS 1117-3.3V.
Referring to fig. 2, the voltage and current sensor 1 measures the voltage and current of the distribution transformer, then the central information processor processes and analyzes the data to obtain the load value of the distribution transformer, and judges whether the monitored transformer is lightly loaded or overloaded, if yes, the early warning is displayed on the PC, otherwise, the data collection is continuously returned.
Claims (1)
1. The utility model provides a distribution network intelligence load monitoring and early warning system which characterized in that: the system comprises a voltage and current sensor (1), a filtering unit (4), an analog-to-digital conversion unit (5), a central information processor (2), a keyboard (8), a power management unit (6), a storage battery (7), a GSM communication unit I (3.1), a GSM communication unit II (3.2) and a PC (9); wherein,
the output end of the voltage and current sensor (1) is connected with the input end of the filtering unit (4), and the output end of the filtering unit (4) is connected with the input end of the analog-to-digital conversion unit (5); the central information processor (2) is respectively connected with the keyboard (8), the analog-to-digital conversion unit (5), the GSM communication unit I (3.1) and the power management unit (6); the storage battery (7) is connected with the power management unit (6), and the PC (9) is connected with the GSM communication unit II (3.2); and the GSM communication unit I (3.1) and the GSM communication unit II (3.2) realize the data transmission and reception in a wireless communication mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621260U CN202042948U (en) | 2011-05-20 | 2011-05-20 | Intelligent load monitoring and early-warning system for distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621260U CN202042948U (en) | 2011-05-20 | 2011-05-20 | Intelligent load monitoring and early-warning system for distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042948U true CN202042948U (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201621260U Expired - Fee Related CN202042948U (en) | 2011-05-20 | 2011-05-20 | Intelligent load monitoring and early-warning system for distribution network |
Country Status (1)
| Country | Link |
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| CN (1) | CN202042948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794039A (en) * | 2012-10-31 | 2014-05-14 | 西门子公司 | Real-time measurement device and control device of electric power system |
| CN107942155A (en) * | 2017-10-24 | 2018-04-20 | 德合南京智能技术有限公司 | Energy efficiency analysis intelligent workstation |
-
2011
- 2011-05-20 CN CN2011201621260U patent/CN202042948U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794039A (en) * | 2012-10-31 | 2014-05-14 | 西门子公司 | Real-time measurement device and control device of electric power system |
| CN107942155A (en) * | 2017-10-24 | 2018-04-20 | 德合南京智能技术有限公司 | Energy efficiency analysis intelligent workstation |
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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: STATE ELECTRIC NET CROP. Effective date: 20121029 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121029 Address after: 402260 Chongqing city Jiangjin Jijiang Binjiang Road West No. 366 Patentee after: Chongqing Electric Power Co.,Ltd. Jiangjin Power Supply Bureau Patentee after: State Grid Corporation of China Address before: 402260 Chongqing city Jiangjin Jijiang Binjiang Road West No. 366 Patentee before: Chongqing Electric Power Co.,Ltd. Jiangjin Power Supply Bureau |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20160520 |