CN210517904U - Optical fiber longitudinal difference microcomputer protection device - Google Patents
Optical fiber longitudinal difference microcomputer protection device Download PDFInfo
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- CN210517904U CN210517904U CN201921901338.9U CN201921901338U CN210517904U CN 210517904 U CN210517904 U CN 210517904U CN 201921901338 U CN201921901338 U CN 201921901338U CN 210517904 U CN210517904 U CN 210517904U
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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
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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Abstract
The utility model discloses an optical fiber longitudinal difference microcomputer protection device, which comprises a microprocessor, an output acquisition module, a relay output module, an analog acquisition module, a communication module, a man-machine interaction module and a power module, wherein the output acquisition module, the relay output module, the analog acquisition module, the communication module and the man-machine interaction module are respectively connected with the microprocessor; the man-machine interaction module is driven by the microprocessor and controls display contents, the man-machine interaction module is also used for inputting control information to the microprocessor, the switching value acquisition module is used for acquiring input signals of the distribution automation system and transmitting the acquired signals to the microprocessor for processing, the relay output module is programmed by the microprocessor to configure an output port of the relay output module, the control type of an output contact is customized, the analog value acquisition module is used for analog signals of the system and transmitting the analog signals to the microprocessor, the microprocessor processes the acquired data, and the communication module is used for exchanging data with the outside. The utility model discloses integrate highly, occupation space is little, debugging and simple to operate, simple structure, it is also easier to overhaul.
Description
Technical Field
The utility model relates to a distribution automation technical field among the electric power system, concretely relates to poor computer protection device is indulged to optic fibre.
Background
Traditional relay protection device often adopts the relay combination, mainly includes overcurrent relay, time relay, auxiliary relay etc. and realizes protect function through complicated combination, but traditional relay protection device has some shortcomings, for example: the occupied space is large, and the installation is inconvenient; the adopted relays have more contacts, so that the sensitivity and the reliability of protection are greatly reduced; the adjustment and maintenance are complex, and the normal daily work is affected by the fact that the adjustment and maintenance can be performed only when power is cut off.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is to above-mentioned prior art not enough and provide an optic fibre indulges poor computer protection device, improves computer protection device integrate, simplifies the installation process, solves occupation space big, adopts the relay contact many and the debugging to overhaul complicated problem.
The technical scheme of the utility model is that:
an optical fiber longitudinal difference microcomputer protection device is characterized in that: the system comprises a microprocessor, an output acquisition module, a relay output module, an analog acquisition module, a communication module, a human-computer interaction module and a power supply module for supplying power to the modules, wherein the output acquisition module, the relay output module, the analog acquisition module, the communication module and the human-computer interaction module are respectively connected with the microprocessor; the man-machine interaction module is driven by the microprocessor and controls the display content, the man-machine interaction module is also used for inputting control information to the microprocessor, the switching value acquisition module is used for acquiring each input signal of the distribution automation system and transmitting the acquired signal to the microprocessor for processing, the relay output module is configured with an output port and a self-defined output contact control type by programming of the microprocessor, the analog value acquisition module is used for analog signals of the system and transmitting the analog signals to the microprocessor, the microprocessor processes the acquired data, and the communication module is used for exchanging data with the outside.
Further, the microprocessor adopts a chip with the model number of STM32F 107.
Further, the human-computer interaction module comprises a 240 × 160 resolution black-and-white liquid crystal display and a membrane keyboard.
Further, the communication module includes a single-mode fiber module and a plurality of ethernet modules or a plurality of 485/232 modules respectively connected to an output end of the single-mode fiber module, and each of the ethernet modules or each of the 485/232 modules respectively includes a communication bus interface or an ethernet interface providing 101, 103 or a ModBus standard communication protocol.
Further, the power supply module provides voltages of 5V and 3.3V for each module.
Furthermore, the switching value acquisition module comprises a plurality of groups of optical coupling isolation adjusting circuit modules, the input end of each group of optical coupling isolation adjusting circuit is used as the input end of the switching value acquisition module to respectively acquire each switching value, and the output end of each group of optical coupling isolation adjusting circuit is used as the output end of the switching value acquisition module to be connected with the microprocessor and processed by the microprocessor.
Furthermore, the relay output module comprises a plurality of two paths of normally closed relay circuits which are normally divided into two paths, control ends of the two paths of normally closed relay circuits which are normally divided into two paths are connected with the microprocessor, and the microprocessor is used for programming and configuring output ports of the relays.
Furthermore, the analog quantity acquisition module comprises a plurality of voltage mutual inductance circuit modules and a plurality of current mutual inductance circuit modules, wherein the input ends of the voltage mutual inductance circuit modules and the input ends of the current mutual inductance circuit modules are respectively used as the input ends of the analog quantity acquisition module to receive analog quantity signals of all units in a power distribution network, and the output ends of the voltage mutual inductance circuit modules and the output ends of the current mutual inductance circuit modules are respectively used as the output ends of the analog quantity acquisition module to be connected with the microprocessor and processed by the microprocessor.
The utility model has the advantages that: the utility model discloses possess remote acquisition, supervision, control, from the inspection function, just can discover transmission line's trouble through an equipment, transmission line's load, the operational aspect of self can also be when certain trouble of equipment self, and the computer protection is through the self-checking function, presents the trouble, moreover, through integrating, occupation space is little, debugging and simple to operate, simple structure, it is also easier to overhaul.
Drawings
FIG. 1 is a schematic block diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a microprocessor according to the present invention;
fig. 3 is a schematic diagram of a circuit structure of the switching value acquisition module of the present invention;
fig. 4 is a schematic diagram of a circuit structure of the relay output module of the present invention;
fig. 5 is a schematic diagram of the circuit structure of the analog quantity acquisition module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, an optical fiber longitudinal differential microcomputer protection device comprises a microprocessor, an output acquisition module, a relay output module, an analog acquisition module, a communication module, a human-computer interaction module and a power supply module, wherein the output acquisition module, the relay output module, the analog acquisition module, the communication module and the human-computer interaction module are respectively connected with the microprocessor; the man-machine interaction module is driven by the microprocessor and controls the display content, the man-machine interaction module is also used for inputting control information to the microprocessor, the switching value acquisition module is used for acquiring each input signal of the distribution automation system and transmitting the acquired signal to the microprocessor for processing, the relay output module is configured with an output port and a self-defined output contact control type by programming of the microprocessor, the analog value acquisition module is used for analog signals of the system and transmitting the analog signals to the microprocessor, the microprocessor processes the acquired data, and the communication module is used for exchanging data with the outside.
The man-machine interaction module adopts, but is not limited to, a 240 × 160 resolution black-and-white liquid crystal display and a membrane keyboard, and the contrast of the display module can be set by scanning the membrane keypad.
As shown in fig. 2, the microprocessor adopts a chip with a model number of STM32F107, and is configured to process data of the switching value acquisition module, the relay output module, the analog value acquisition module, and the communication module, process a scanning result, and display the scanning result on a black and white liquid crystal display.
As shown in fig. 3, the switching value acquisition module includes, but is not limited to, 13 sets of optical coupling isolation adjustment circuit modules, an input end of each set of optical coupling isolation adjustment circuit is used as an input end of the switching value acquisition module to respectively acquire each switching value, and an output end of each set of optical coupling isolation adjustment circuit is used as an output end of the switching value acquisition module, is connected to the microprocessor, and is processed by the microprocessor. The optical coupler isolation adjusting circuit module adjusts the voltage and the current through resistors connected in series at two ends of the optical coupler, controls the small voltage through the large voltage and plays an isolating role.
As shown in fig. 4, the relay output module includes, but is not limited to, 8 two normally-closed relay circuits, one of the two normally-closed relay circuits is selected to be described, coils of relays in the two normally-closed relay circuits are connected to collectors of triodes, emitters of the triodes are grounded, base-set series resistors of the triodes are connected to a microprocessor, and outputs of the relays are configured by the microprocessor in a programming manner to customize output contact control types.
As shown in fig. 5, the analog quantity acquisition module includes, but is not limited to, 4 voltage transformer circuit modules and 6 current transformer circuit modules, the sampling type can be changed according to the customization of the user, wherein the input end of the voltage mutual inductance circuit module and the input end of the current mutual inductance circuit module are respectively used as the input end of an analog quantity acquisition module to receive analog quantity signals of each unit in a power distribution network, the output end of the voltage mutual inductance circuit module and the output end of the current mutual inductance circuit module are respectively used as the output end of the analog quantity acquisition module to be connected with a microprocessor and processed by the microprocessor, a plurality of resistors are connected in series at the two ends of a voltage transformer in the voltage transformer circuit module and a current transformer in the current transformer circuit to play the roles of current limiting and voltage limiting, in addition, further filtering and rectifying is performed by a capacitor connected to ground before being input to the microprocessor.
The communication module includes, but is not limited to, a single mode fiber module and 2 ethernet modules or 2 485/232 modules respectively connected to an output end of the single mode fiber module, and each of the ethernet modules or each of the 485/232 modules respectively includes a communication bus interface or an ethernet interface providing a 101, 103 or ModBus standard communication protocol.
The power supply module provides 5V and 3.3V voltage for each module.
The utility model discloses possess remote acquisition, supervision, control, from the inspection function, just can discover transmission line's trouble through an equipment, transmission line's load, the operational aspect of self can also be when certain trouble of equipment self, and the computer protection is through the self-checking function, presents the trouble, moreover, through integrating, occupation space is little, debugging and simple to operate, simple structure, it is also easier to overhaul.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An optical fiber longitudinal difference microcomputer protection device is characterized in that: the system comprises a microprocessor, a switching value acquisition module, a relay output module, an analog value acquisition module, a communication module, a human-computer interaction module and a power supply module for supplying power to the modules, wherein the switching value acquisition module, the relay output module, the analog value acquisition module, the communication module and the human-computer interaction module are respectively connected with the microprocessor; the man-machine interaction module is driven by the microprocessor and controls the display content, the man-machine interaction module is also used for inputting control information to the microprocessor, the switching value acquisition module is used for acquiring each input signal of the distribution automation system and transmitting the acquired signal to the microprocessor for processing, the relay output module is configured with an output port and a self-defined output contact control type by programming of the microprocessor, the analog value acquisition module is used for analog signals of the system and transmitting the analog signals to the microprocessor, the microprocessor processes the acquired data, and the communication module is used for exchanging data with the outside.
2. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the microprocessor adopts a chip with the model number of STM32F 107.
3. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the human-computer interaction module comprises a black and white liquid crystal display with 240 × 160 resolution and a membrane keyboard.
4. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the communication module comprises a single-mode fiber module and a plurality of Ethernet modules or a plurality of 485/232 modules respectively connected with the output end of the single-mode fiber module, and each Ethernet module or each 485/232 module respectively comprises a communication bus interface or an Ethernet interface providing 101, 103 or ModBus standard communication protocols.
5. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the power supply module provides 5V and 3.3V voltage for each module.
6. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the switching value acquisition module comprises a plurality of groups of optical coupling isolation adjusting circuit modules, the input end of each group of optical coupling isolation adjusting circuit is used as the input end of the switching value acquisition module to acquire each switching value, and the output end of each group of optical coupling isolation adjusting circuit is used as the output end of the switching value acquisition module to be connected with the microprocessor and processed by the microprocessor.
7. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the relay output module comprises a plurality of two-path normally closed relay circuits, the control ends of the two-path normally closed relay circuits are connected with the microprocessor, and the microprocessor is used for programming and configuring the output ports of the relays.
8. The optical fiber longitudinal differential microcomputer protection device according to claim 1, wherein: the analog quantity acquisition module comprises a plurality of voltage mutual inductance circuit modules and a plurality of current mutual inductance circuit modules, wherein the input ends of the voltage mutual inductance circuit modules and the input ends of the current mutual inductance circuit modules are respectively used as the input ends of the analog quantity acquisition module to receive analog quantity signals of all units in the distribution automation system, and the output ends of the voltage mutual inductance circuit modules and the output ends of the current mutual inductance circuit modules are respectively used as the output ends of the analog quantity acquisition module to be connected with the microprocessor and are processed by the microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901338.9U CN210517904U (en) | 2019-11-06 | 2019-11-06 | Optical fiber longitudinal difference microcomputer protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901338.9U CN210517904U (en) | 2019-11-06 | 2019-11-06 | Optical fiber longitudinal difference microcomputer protection device |
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| Publication Number | Publication Date |
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| CN210517904U true CN210517904U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921901338.9U Active CN210517904U (en) | 2019-11-06 | 2019-11-06 | Optical fiber longitudinal difference microcomputer protection device |
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| CN (1) | CN210517904U (en) |
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2019
- 2019-11-06 CN CN201921901338.9U patent/CN210517904U/en active Active
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