CN203827065U - Smart power grid online monitoring instrument - Google Patents
Smart power grid online monitoring instrument Download PDFInfo
- Publication number
- CN203827065U CN203827065U CN201420117967.3U CN201420117967U CN203827065U CN 203827065 U CN203827065 U CN 203827065U CN 201420117967 U CN201420117967 U CN 201420117967U CN 203827065 U CN203827065 U CN 203827065U
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- Prior art keywords
- control unit
- power grid
- monitoring instrument
- main control
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Classifications
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to the middle-and-high-voltage power grid field and relates to a smart power grid online monitoring instrument. The smart power grid online monitoring instrument is characterized in that the smart power grid online monitoring instrument includes a main control unit, measuring units, switch control units and scheduling display units, wherein the measuring units and the switch control units are respectively connected with serial interfaces of a single-chip microcomputer in the main control unit, the measuring units are connected with the main control unit in the form of card plugging, the measuring units are distributed in a plurality of branches of a power grid, and each measuring unit and a plurality of scheduling display units form a serial communication network through an RS485 serial communication protocol; and photoelectric type current transformers are arranged in the measuring units. Compared with the prior art, the smart power grid online monitoring instrument of the utility model can measure short-circuit current of a short-circuit loop and can send short-circuit alarm signals according to current values, and transmits fault information to a host computer timely, so that alarm and display can be realized timely; and the smart power grid online monitoring instrument can perform switching timely through the switch control units, and therefore, power outage processing time can be decreased, and power outage loss can be reduced.
Description
Technical field
The utility model relates to mesohigh electric power network monitoring field, relates in particular to a kind of intelligent grid on-line monitoring instrument.
Background technology
Intelligent grid is that to take advanced computer, electronic monitoring equipment and advanced power electronic device be basis, by introducing modern communications, the information technologies such as automatic control, electric power system to generating, transmission of electricity, distribution and each link of electricity consumption is promoted, and to reach, operation of power networks is safer, economical, reliable, the target of environmental protection.Because traditional electrical network seldom or does not completely come balance monitoring power electric with smart machine, by statistics, the use summation of the enough India of electric power, Germany and Canadian three states of the annual loss in the whole world.
The main performance feature of intelligent grid has: isolated fault fast, self-recovery when fault occurs, avoid the generation of large area blackout.Intelligent grid can hold centralized power generation, distributed generation pattern and energy-storage system simultaneously, employing is similar to " plug and play " technology in calculating, realization is mutual with load side, support the simple and easy access of the regenerative resources such as solar energy, wind-powered electricity generation, underground heat, biomass energy, the optional scope of resource that the operation of expansion system regulates, meets the harmonious development of electrical network natural environment.Intelligent grid is realized the optimization of the network operation and dilatation on the whole, reduces its operation expense and investment.
Summary of the invention
The purpose of this utility model is to provide a kind of intelligent grid on-line monitoring instrument, meet the measurement requirement of ultra-high-tension power transmission line short circuit current in service, and can in time fault message and host computer be carried out to communication, realize and report to the police and show, reduce the processing time that has a power failure, reduce loss of outage.
For achieving the above object, the utility model is achieved through the following technical solutions:
Intelligent grid on-line monitoring instrument, comprise main control unit, measuring unit, switch control unit and scheduling display unit, measuring unit and switch control unit are connected with the serial line interface of single-chip microcomputer in main control unit respectively, and wherein measuring unit is connected with main control unit with the form of plug-in card; Described measuring unit is distributed on many branch roads of electric power network, and each measuring unit and a plurality of scheduling display unit form serial communication network by RS485 serial communication protocol; Single-chip microcomputer in main control unit is connected with the serial port of host computer by RS485/232 change-over circuit, and the single-chip microcomputer in main control unit is connected with display screen by display driver circuit.
In described measuring unit, be provided with For The Rogowski Optical Current Transformer.
Compared with prior art, the utility model beneficial effect is: adopt For The Rogowski Optical Current Transformer, make measuring unit adapt to the feature of the electric current wide region of electric power network, to obtain wide in range measuring range, can measure the short circuit current of short-circuit loop, and can send short-circuit alarming signal according to current value size, and can in time fault location information and host computer be carried out to communication, realize and report to the police and show, and switch in time by switch control unit, reduce the processing time that has a power failure, reduce loss of outage.
accompanying drawing explanation
Fig. 1 is the utility model embodiment block diagram of system;
Fig. 2 is the utility model embodiment main control unit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, it is the utility model intelligent grid on-line monitoring instrument embodiment block diagram of system, comprise main control unit, measuring unit, switch control unit and scheduling display unit, measuring unit and switch control unit are connected with the serial line interface of single-chip microcomputer in main control unit respectively, and wherein measuring unit is connected with main control unit with the form of plug-in card, a plurality of measuring units are (as measuring unit one, measuring unit two ...) be distributed on demand on each branch road of electric power network, each measuring unit and a plurality of scheduling display unit are (if scheduling display unit 11 is to scheduling display unit 1n, scheduling display unit 21 is to scheduling display unit 2n, ) by RS485 serial communication protocol, form serial communication network, detected value can show in real time in control room, control room is located near electrical network branch line, when appearring in certain branch road, short-circuit signal can locate fast and fast reaction nearby, switch control unit by each respective branch is (as switch control unit one, switch control unit two, ) switch in time, and launch to keep in repair.
See Fig. 2, the single-chip microcomputer in main control unit is connected with the serial port of host computer by RS485/232 change-over circuit, and the single-chip microcomputer in main control unit is connected with display screen by display driver circuit.Single-chip microcomputer in main control unit is used for coordinating the work of each unit, controls and shows and communicate by letter, and realizes the serial communication between each functional unit and host computer.
In the utility model measuring unit, be provided with For The Rogowski Optical Current Transformer, adopt wide region current transformer measuring technique, to obtain wide in range measuring range; Adopt peak value of short to compare and width measure technology, by multistage current peak comparator, judge the grade of measuring of short circuit current, set short circuit criterion.
Claims (2)
1. intelligent grid on-line monitoring instrument, it is characterized in that, comprise main control unit, measuring unit, switch control unit and scheduling display unit, measuring unit and switch control unit are connected with the serial line interface of single-chip microcomputer in main control unit respectively, and wherein measuring unit is connected with main control unit with the form of plug-in card; Described measuring unit is distributed on many branch roads of electric power network, and each measuring unit and a plurality of scheduling display unit form serial communication network by RS485 serial communication protocol; Single-chip microcomputer in main control unit is connected with the serial port of host computer by RS485/232 change-over circuit, and the single-chip microcomputer in main control unit is connected with display screen by display driver circuit.
2. intelligent grid on-line monitoring instrument according to claim 1, is characterized in that, in described measuring unit, is provided with For The Rogowski Optical Current Transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117967.3U CN203827065U (en) | 2014-03-14 | 2014-03-14 | Smart power grid online monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117967.3U CN203827065U (en) | 2014-03-14 | 2014-03-14 | Smart power grid online monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203827065U true CN203827065U (en) | 2014-09-10 |
Family
ID=51482526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420117967.3U Expired - Lifetime CN203827065U (en) | 2014-03-14 | 2014-03-14 | Smart power grid online monitoring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203827065U (en) |
-
2014
- 2014-03-14 CN CN201420117967.3U patent/CN203827065U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |