CN214674322U - Microcomputer comprehensive protection measurement and control device of feeder cabinet - Google Patents
Microcomputer comprehensive protection measurement and control device of feeder cabinet Download PDFInfo
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- CN214674322U CN214674322U CN202022942527.XU CN202022942527U CN214674322U CN 214674322 U CN214674322 U CN 214674322U CN 202022942527 U CN202022942527 U CN 202022942527U CN 214674322 U CN214674322 U CN 214674322U
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- switching value
- chip microcomputer
- interface
- cpu
- feeder cabinet
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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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
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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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
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
Abstract
The utility model relates to a computer integrated protection measurement and control device of feeder cabinet, including data acquisition system, the switching value system, singlechip microcomputer system, external interface, the relay, photoelectric isolator and human-computer interaction panel, data acquisition system gathers electric power system's electric current, voltage analog input signal, transform, switching value system gathers electric power system switching value signal, the signal transmission of all collections carries out analysis processes for singlechip microcomputer system, singlechip microcomputer system connects external interface, with external communication transmission data, the human-computer interaction panel of rethread external interface connection, carry out data set to singlechip microcomputer system through the panel, change and demonstration. The feeder cabinet has the advantages that the integration of functions such as measurement, control and protection is realized, safer monitoring and protection are realized, and huge loss caused by load stop due to power failure of the feeder cabinet is avoided.
Description
Technical Field
The utility model relates to a feeder cabinet's observing and controlling technical field especially relates to a feeder cabinet's computer integrated protection measurement and control device.
Background
The microcomputer comprehensive protection measurement and control device is an economical protection for integrating measurement, control, protection and communication; the high-voltage distribution room of the distribution network terminal is customized, three-section type non-directional current protection is taken as a core, and monitoring and acquisition functions of power grid parameters are provided, so that the traditional ammeter, voltmeter, power meter, frequency meter, kilowatt-hour meter and the like can be omitted, the measured data and the protection information can be remotely transmitted to an upper computer through a communication port, and distribution network automation can be conveniently realized; the device integrates the automatic switching function of the standby power supply in the device according to the characteristics of the power supply of the distribution network, can flexibly realize the functions of the inlet wire standby switch and the mother standby switch, and applies a microcomputer comprehensive protection measurement and control device to protect the feeder cabinet in the feeder cabinet.
Disclosure of Invention
The utility model provides a computer integrated protection measurement and control device of feeder cabinet adds overcurrent protection circuit and redundant CPU configuration, can also carry out overcurrent protection to the CPU board under realizing observing and controlling, protection, tripping operation early warning etc. function, and the uninterrupted power supply of feeder cabinet can be protected to redundant CPU configuration, prevents that CPU trouble outage from restarting load equipment and stopping and the huge loss that brings.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a microcomputer comprehensive protection measurement and control device of a feeder line cabinet comprises a data acquisition system, a switching value system, a single chip microcomputer system, an external interface, a relay, a photoelectric isolator and a man-machine interaction panel, wherein the data acquisition system acquires current and voltage analog input signals of a power system and carries out conversion, the switching value system acquires switching value signals of the power system, all the acquired signals are transmitted to the single chip microcomputer system for analysis and processing, the single chip microcomputer system is connected with the external interface and communicates with the external interface to transmit data, the single chip microcomputer system is connected with the man-machine interaction panel through the external interface, and the panel is used for carrying out data setting, changing and displaying on the single chip microcomputer system.
The data acquisition system comprises an analog quantity input system and an analog-to-digital conversion module, wherein the analog quantity input system acquires incoming line current, voltage, power and phase sequence of the feeder cabinet and converts the incoming line current, the voltage, the power and the phase sequence into required digital quantity through the analog-to-digital conversion module.
The switching value system comprises a switching value input module and a switching value output module, wherein the switching value input module is connected with the photoelectric isolator, and the switching value output module is connected with the relay.
The single-chip microcomputer system comprises a CPU, a memory, a single-chip microcomputer integrated circuit and an overcurrent protection circuit, wherein the CPU adopts a redundant CPU arrangement and is used for ensuring uninterrupted and seamless switching when a CPU circuit fails, and a computer program is injected into the CPU to realize the function of a microcomputer protection device; the CPU is connected with a memory, and the memory is used for storing a fault message, sampling data and a fixed value program; the memory is connected with the single chip microcomputer integrated circuit to monitor electric energy, tripping and closing and fault records, the memory and the single chip microcomputer integrated circuit are integrated on the CPU board, and the overcurrent protection circuit is connected with the CPU board to perform overcurrent protection on the CPU board.
The external interface comprises a communication interface and a man-machine interface, the communication interface comprises an IRIG-B GPS interface, an RS485 interface and an Ethernet interface, the communication interface is connected with the singlechip microcomputer system and is convenient for data communication with external equipment, and the man-machine interface is also connected with the singlechip microcomputer system and is connected with the man-machine interaction panel through the man-machine interface.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model ensures the normal operation of the feeder cabinet and realizes the functions of measurement, control, protection and communication integration;
2) the overcurrent protection circuit and the redundant CPU configuration ensure the uninterrupted operation of the feeder cabinet;
3) the module integrates, and is small, is applicable to the feeder cabinet of different voltage levels, and the suitability is strong.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a pin wiring diagram of the utility model device.
Fig. 3 is a circuit diagram of the overcurrent protection circuit of the present invention.
In the figure: 1. the system comprises a data acquisition system 2, a switching value system 3, a single chip microcomputer system 4, an external interface 5, a relay 6, a photoelectric isolator 7, a man-machine interaction panel 8, an analog value input system 9, an analog-to-digital conversion module 10, a switching value input module 11, a switching value output module 12, an overcurrent protection circuit 13, a memory 14, a CPU 15, a single chip microcomputer integrated circuit 16, a communication interface 17, a man-machine interface 18, an IRIG-B GPS interface 19 and an RS485 interface 20. Ethernet interface
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
see fig. 1, which is a schematic structural diagram of the present invention. The utility model relates to a microcomputer integrated protection measurement and control device of feeder cabinet, including data acquisition system 1, switching value system 2, singlechip microcomputer system 3, external interface 4, relay 5, photoelectric isolator 6 and human-computer interaction panel 7, data acquisition system 1 gathers electric power system's electric current, voltage analog input signal, transform, switching value system 2 gathers electric power system switching value signal, the signal transmission of all collections carries out analysis processes for singlechip microcomputer system 3, singlechip microcomputer system 3 connects external interface 4, with external communication transmission data, human-computer interaction panel 7 is connected to rethread external interface 4, carry out data set through the panel to singlechip microcomputer system 3, change and demonstration.
The data acquisition system 1 comprises an analog quantity input system 8 and an analog-to-digital conversion module 9, wherein the analog quantity input system 8 acquires incoming line current, voltage, power and phase sequence of the feeder cabinet and converts the incoming line current, voltage, power and phase sequence into required digital quantity through the analog-to-digital conversion module 9.
The switching value system 2 comprises a switching value input module 10 and a switching value output module 11, wherein the switching value input module 10 is connected with the photoelectric isolator 6, and the switching value output module 11 is connected with the relay 5.
The single-chip microcomputer system 3 comprises a CPU14, a memory 13, a single-chip microcomputer integrated circuit 15 and an overcurrent protection circuit 12, wherein the CPU14 is set by adopting a redundant CPU14, uninterrupted and seamless switching of a CPU14 circuit in failure is guaranteed, a computer program is filled in the CPU14 to realize the function of a microcomputer protection device, a CPU14 is connected with the memory 13, fault messages, sampling data and a constant value program are stored, the single-chip microcomputer integrated circuit 15 is connected, electric energy, tripping and closing and fault recording are monitored, the memory 13 and the single-chip microcomputer integrated circuit 15 are integrated on a CPU14 board, and the overcurrent protection circuit 12 is connected with a CPU14 board to perform overcurrent protection on the CPU14 board.
The external interface 4 comprises a communication interface 16 and a man-machine interface 17, the communication interface is provided with an IRIG-B GPS interface 18, an RS485 interface 19 and an Ethernet interface 20, the communication interface is connected with the single-chip microcomputer system 3 and is convenient for data communication with external equipment, and the man-machine interface 17 is also connected with the single-chip microcomputer system 3 and is connected with the man-machine interaction panel 7 through the man-machine interface 17.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
As shown in figure 1, an analog input system collects analog signals of voltage, current, frequency and the like of a feeder cabinet, signals of a switching value input module passing through a photoelectric isolator all enter a redundant CPU device through an overcurrent protection circuit, the same program is filled in the redundant CPU to process all the signals, then the signals enter a singlechip integrated circuit for further processing, certain switching value data are output through a switching value output module, the switching value output signals pass through a relay to execute a switching value output command, the rest required switching value and analog output data enter a man-machine interaction panel through a man-machine interface, the display screen of the man-machine interaction panel can be called and displayed through keys, parameters required to be set can be input into the device through a keyboard on the man-machine interaction panel, all the modules are integrally installed in a metal shell and provided with external wiring pins, the voltage, power, current signals and the like of the external incoming and outgoing lines can be measured and displayed.
Claims (4)
1. A microcomputer comprehensive protection measurement and control device of a feeder cabinet comprises a data acquisition system, a switching value system, a single chip microcomputer system, an external interface, a relay, a photoelectric isolator and a man-machine interaction panel, wherein the data acquisition system is used for acquiring current and voltage analog input signals of a power system and carrying out conversion; the switching value system is used for collecting switching value signals of the power system, and all the collected signals are transmitted to the single chip microcomputer system for analysis and processing; the single-chip microcomputer system is connected with an external interface, communicates with the outside to transmit data, is connected with a man-machine interaction panel through the external interface, and sets, changes and displays data on the single-chip microcomputer system through the panel; the microcomputer system of the single chip microcomputer is characterized by comprising a CPU, a memory, a single chip microcomputer integrated circuit and an overcurrent protection circuit, wherein the CPU adopts a redundant CPU arrangement and is used for ensuring uninterrupted and seamless switching when the CPU circuit fails, and a computer program is injected into the CPU to realize the function of a microcomputer protection device; the CPU is connected with a memory, and the memory is used for storing a fault message, sampling data and a fixed value program; the memory is connected with the single chip microcomputer integrated circuit to monitor electric energy, tripping and closing and fault records, the memory and the single chip microcomputer integrated circuit are integrated on the CPU board, and the overcurrent protection circuit is connected with the CPU board to perform overcurrent protection on the CPU board.
2. The microcomputer integrated protection, measurement and control device of a feeder cabinet as claimed in claim 1, wherein the data acquisition system comprises an analog input system and an analog-to-digital conversion module, the analog input system acquires incoming current, voltage, power and phase sequence of the feeder cabinet, and the incoming current, voltage, power and phase sequence are converted into required digital values through the analog-to-digital conversion module.
3. The microcomputer integrated protection measurement and control device of a feeder cabinet as claimed in claim 1, wherein the switching value system comprises a switching value input module and a switching value output module, the switching value input module is connected with the photoelectric isolator, and the switching value output module is connected with the relay.
4. The computer integrated protection, measurement and control device of a feeder cabinet as claimed in claim 1, wherein the external interface comprises a communication interface and a human-machine interface, the communication interface comprises an IRIG-B GPS interface, an RS485 interface and an ethernet port, the communication interface is connected with a microcomputer system of a single chip microcomputer and facilitates data communication with external equipment, and the human-machine interface is also connected with the microcomputer system of the single chip microcomputer and is connected with a human-machine interaction panel through the human-machine interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022942527.XU CN214674322U (en) | 2020-12-10 | 2020-12-10 | Microcomputer comprehensive protection measurement and control device of feeder cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022942527.XU CN214674322U (en) | 2020-12-10 | 2020-12-10 | Microcomputer comprehensive protection measurement and control device of feeder cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214674322U true CN214674322U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022942527.XU Active CN214674322U (en) | 2020-12-10 | 2020-12-10 | Microcomputer comprehensive protection measurement and control device of feeder cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN214674322U (en) |
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- 2020-12-10 CN CN202022942527.XU patent/CN214674322U/en active Active
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