CN202134959U - Intelligent protective device for substation in rural power network - Google Patents
Intelligent protective device for substation in rural power network Download PDFInfo
- Publication number
- CN202134959U CN202134959U CN201120213281U CN201120213281U CN202134959U CN 202134959 U CN202134959 U CN 202134959U CN 201120213281 U CN201120213281 U CN 201120213281U CN 201120213281 U CN201120213281 U CN 201120213281U CN 202134959 U CN202134959 U CN 202134959U
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/14—Protecting elements, switches, relays or circuit breakers
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Abstract
The utility model provides an intelligent protective device for a substation in a rural power network, including a host and a display device. Wherein the host includes a CPU; the CPU is respectively connected with a first watchdog circuit, a first cell/real-time clock module, a simulation and digital power supply input interface, a 16 bit A/D converter, a switching value input/output interface, an RS 232 interface, a first data memory, a second program memory, a fixed value memory of a serial interface, a dual-channel CAN interface and a dual-channel RS485 interface. The display device includes an ARM processor, which is respectively connected with a colorful LCD, a second watchdog circuit and a second cell/real-time clock module. The host is connected with the display device through the RS 232 interface. In the utility model, the system network combination is flexible; the data storage is convenient; the data processing is rapid; and a better protection effect on various power devices in a substation in a rural power network is provided.
Description
Technical field
The utility model relates to electronic technology field, particularly a kind of rural power grids intelligent substation protective device.
Background technology
Rural power grids are meant the electric power system in the counties and cities level Utilities Electric Co. compass of competency, bear the challenge to all kinds of power load power supplies in county town and rural area.Main characteristics is that electric pressure is lower, is main with 35kV and 10kV, and primary system equipment generally is both economical, and secondary control appliance function is relatively simple.
Protective device in the transformer station includes main transformer differential protection, main transformer backup protection, incoming relay-protection, outlet protection, the female couplet and prepared auto restart protection, capacitor protection, reactor protection, distribution transformer protection, motor protection, voltage and array apparatus etc.
In the maintenance and scrap build of existing rural power grids transformer station, need large-area power-cuts, interruption duration long, unfavorable, and networking is dumb, data processing is too late, storage is also inconvenient to electric equipment protection.
The utility model content
The utility model provides a kind of rural power grids intelligent substation protective device, and networking flexibility, storage are convenient and data processing is fast, the various power equipments of rural power grids transformer station are played the better protection effect.
To achieve these goals, the utility model provides following technical scheme:
A kind of rural power grids intelligent substation protection system; It comprises: main frame and display unit; Wherein, Said main frame comprises: CPU, said CPU are connected with fixed value memory, two-way CAN interface and the two-way RS485 interface of first watchdog circuit, first battery/real-time clock module, analog-and digital-power input interface, 16 A/D converters, switching value input/output interface, RS232 interface, first data storage, second program storage, serial line interface respectively;
Said display unit comprises: arm processor, said arm processor connect colour liquid crystal display device, second watchdog circuit and second battery/real-time clock module respectively;
Said main frame connects said display unit through said RS232 interface.
Preferably, said arm processor also is connected with second data storage and second program storage.
Through implementing above technical scheme; Has following technique effect: the rural power grids intelligent substation protective device that the utility model provides; Have various multi-form network interfaces, networking flexibility, storage convenience, and adopt high-end hardware platform and unified software platform; Simplified the R&D work amount of producer on the one hand; On the one hand user-friendly with safeguard to have outstanding advantages such as upgrading is easy, cheap, the power failure scope is little, interruption duration is short, and be convenient to the O&M in later stage.
Description of drawings
The structural representation of the rural power grids intelligent substation protective device that Fig. 1 provides for the utility model embodiment.
Embodiment
In order better to understand the technical scheme of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
The utility model embodiment provides a kind of rural power grids intelligent substation protective device; As shown in Figure 1; This system comprises: main frame and display unit; Wherein, said main frame comprises: (core processor that it is MCF54418 that this CPU adopts the up-to-date high-end model of Freescale Semiconductor has: the 250MHz dominant frequency CPU; Can reach the 385MIPS processing speed), said CPU is connected with first watchdog circuit, first battery/real-time clock module, analog-and digital-power input interface, 16 A/D converters, switching value input/output interface and RS232 (a kind of general calculation machine interface) interface respectively; Said display unit comprises: arm processor, said arm processor connect colour liquid crystal display device, second watchdog circuit and second battery/real-time clock module respectively; Said main frame connects said display unit through said RS232 interface.Can realize the intelligent protection of rural power grids substation equipment, and have good switching value and data-transformation facility.Among the embodiment further; Said arm processor also is connected with fixed value memory, two-way CAN (Controller Area Network, controller local area network's bus) interface and two-way RS485 (a kind of intelligence instrument interface) interface of first data storage, second program storage, serial line interface respectively.This CPU also is connected with the FLASH stored program process data of (perhaps inside has) 1GB internal memory itself, 2GB; Support IEC61850 (the 57th technical committee of International Electrotechnical Commission is international standard promulgation, that be applied to substation communication network and system in 2004) two fiber optic Ethernet interfaces of stipulations, two CAN mouth, two RS485 interface, can realize multiple networking mode flexibly.Adopt RS232 interface and the communication of display panel plate also for it provides 5V working power, and have good data processing and memory space.Various power equipments in the transformer station play the better protection effect, and wherein, the protective device in the transformer station comprises:
Main transformer differential protection, main transformer backup protection, incoming relay-protection, outlet protection, the female couplet and prepared auto restart protection, capacitor protection, reactor protection, distribution transformer protection, motor protection, voltage and array apparatus etc.
The defencive function of main transformer differential protection mainly contains: the differential protection of ratio brake, the disconnected protection of differential, difference flow through big alarm, the alarm of CT (current transformer in the electric power system) broken string, the conversion of star corner connection line.
The defencive function of main transformer backup protection mainly contains: two section three time limit direction overcurrent protection, overload protection, zero-sequence current protection, zero-sequence voltage protection.
The defencive function of inlet wire and outlet protection mainly contains: syllogic direction overcurrent protection, inverse time over-current protection, zero-sequence current protection overvoltage protection, under-voltage protection, zero-sequence voltage protection, reclosing and after accelerated protection.
The defencive function of distribution transformer protection mainly contains: syllogic overcurrent protection, inverse time over-current protection, zero-sequence current protection, low pressure zero-sequence current protection, negative-sequence current protection, overvoltage protection, under-voltage protection, zero-sequence voltage protection, main body protection.
The defencive function of capacitor and reactor protection mainly contains: syllogic overcurrent protection, zero-sequence current protection, overvoltage protection, under-voltage protection, zero-sequence voltage protection.
The defencive function of motor protection mainly contains: syllogic overcurrent protection, inverse time over-current protection, zero-sequence current protection, negative-sequence current protection, overvoltage protection, under-voltage protection, zero-sequence voltage protection, main body protection.
In a further embodiment, said arm processor also is connected with second data storage and second program storage, to realize good data memory function more.
The system that the foregoing description provides adopts high-end hardware platform and unified software platform, has simplified the R&D work amount of producer on the one hand, user-friendly on the one hand and maintenance.Producer need carry out suitable research to the mainboard of the existing equipment that needs to transform; And in strict accordance with the base plate of the new mainboard of terminal definition design of the size of original mainboard and connector; According to the size design of original cabinet panel well size and the mounting means of new display panel; Other part all is standardized design, provides cost savings.
And the system that this embodiment provides can select through complete Chinese icon formula operation interface is convenient to route protection, tranformer protection, capacitor protection, motor protection, reactor protection.Protective device to different manufacturers upgrades to intelligent protection device; Only need different mainboard base plate and the plugs of configuration to get final product; Transformer station for the 35kV grade of vast rural power grids has outstanding advantages such as upgrading is easy, cheap, the power failure scope is little, interruption duration is short, and is convenient to the O&M in later stage.
More than a kind of rural power grids intelligent substation protective device that the utility model embodiment is provided carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (2)
1. rural power grids intelligent substation protective device; It is characterized in that; Comprise: main frame and display unit; Wherein, said main frame comprises: CPU, said CPU are connected with fixed value memory, two-way CAN interface and the two-way RS485 interface of first watchdog circuit, first battery/real-time clock module, analog-and digital-power input interface, 16 A/D converters, switching value input/output interface, RS232 interface, first data storage, second program storage, serial line interface respectively;
Said display unit comprises: arm processor, said arm processor connect colour liquid crystal display device, second watchdog circuit and second battery/real-time clock module respectively;
Said main frame connects said display unit through said RS232 interface.
2. rural power grids intelligent substation protective device according to claim 1 is characterized in that said arm processor also is connected with second data storage and second program storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120213281U CN202134959U (en) | 2011-06-23 | 2011-06-23 | Intelligent protective device for substation in rural power network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120213281U CN202134959U (en) | 2011-06-23 | 2011-06-23 | Intelligent protective device for substation in rural power network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134959U true CN202134959U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120213281U Expired - Fee Related CN202134959U (en) | 2011-06-23 | 2011-06-23 | Intelligent protective device for substation in rural power network |
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| Country | Link |
|---|---|
| CN (1) | CN202134959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659760A (en) * | 2014-06-19 | 2015-05-27 | 吴春刚 | Method for realizing automatic comprehensive protection of transformer substation |
-
2011
- 2011-06-23 CN CN201120213281U patent/CN202134959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659760A (en) * | 2014-06-19 | 2015-05-27 | 吴春刚 | Method for realizing automatic comprehensive protection of transformer substation |
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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: LI AIFENG Free format text: FORMER OWNER: BAODING HEREFAR ELECTRICAL TECHNOLOGY CO., LTD. Effective date: 20120813 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120813 Address after: 071000 No. 2, unit 5, 99 Hutong, Hutong Hutong, Hutong, 302, Baoding, Hebei Patentee after: Li Aifeng Address before: 071000 Hyatt International C-9-08, Chaoyang North Avenue, Hebei, Baoding Patentee before: Baoding Herefar Electrical Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |