CN114156738A - Distributed parameter acquisition system for low-voltage power distribution cabinet - Google Patents
Distributed parameter acquisition system for low-voltage power distribution cabinet Download PDFInfo
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- CN114156738A CN114156738A CN202111474549.0A CN202111474549A CN114156738A CN 114156738 A CN114156738 A CN 114156738A CN 202111474549 A CN202111474549 A CN 202111474549A CN 114156738 A CN114156738 A CN 114156738A
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- 230000010365 information processing Effects 0.000 claims abstract description 35
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- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 230000001960 triggered effect Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 51
- 238000010276 construction Methods 0.000 abstract description 6
- 238000007726 management method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004148 unit process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to the field of electrical information acquisition, and particularly discloses a distributed parameter acquisition system for a low-voltage power distribution cabinet, which comprises a direct-current power supply unit, a data processing unit and an information storage unit, wherein the direct-current power supply unit is used for supplying power to the voltage processing unit, the current processing unit, the data processing unit and the information storage unit; the voltage processing unit is used for acquiring voltage information of the low-voltage power distribution cabinet in real time, transmitting the voltage information to the information processing unit and generating a synchronous signal for triggering the current processing unit to work; the current processing unit is used for acquiring current information after being triggered by the synchronous signal and transmitting the current information to the information processing unit; the information processing unit is used for integrating the voltage information and the current information to obtain full electric quantity information and transmitting the full electric quantity information to the information storage unit; the information storage unit is used for storing the full electric quantity information and transmitting the full electric quantity information to the power distribution operation and maintenance management system. The invention has the advantages of simple structure, small volume, low cost, flexible internal configuration of the acquisition system, less wiring during construction and high safety.
Description
Technical Field
The invention relates to the field of electrical information acquisition.
Background
The utility model discloses an electric power user electricity distribution room operation and maintenance system among the existing property management uses more and more extensively, but because the inconsistent to the intelligent monitoring requirement of high-low pressure in each electricity distribution room earlier stage construction, especially low-voltage distribution part, intelligent level difference is great, install the low-voltage distribution cabinet of intelligent instrument additional, it is relatively easy a little to reform transform, only need with the information transmission of low-voltage distribution cabinet of communication form to lump unit, then upload to the operation and maintenance system, but not install the load electric degree of the low-voltage distribution cabinet of intelligent instrument additional, need gather through installing intelligent acquisition equipment and transmit to the operation and maintenance system, adopt intelligent module unit network deployment to obtain the analog signal of one side low-voltage switch cabinet, obtain three-phase voltage signal through the generating line, namely the public voltage signal of low-voltage distribution cabinet, all are same phase place and amplitude. The full electric quantity information of each branch is obtained, three-phase current and voltage information accessed to the branch is acquired through the unit processing module, A/D conversion is carried out, or the three-phase current and voltage information is input to the special electric power chip, algorithm operation is carried out in a CPU, and finally current, voltage, active and reactive power, electric power or other harmonic information of the low-voltage switch cabinet is obtained. Each intelligent unit processing module can be connected with three-phase voltage strong electric signal processing, but wiring is complicated, or power failure construction is needed and time is long; or a plurality of electric shock danger points exist in the uninterrupted construction and maintenance; every return circuit all passes through the fuse terminal before the access or cuts off a little, then inserts intelligent unit processing module again, to the low-voltage distribution cabinet that has a plurality of branches, just there is tens fuse terminals to insert, and occupation space is great. In addition, if an intelligent processing device integrates all the current quantities and a three-phase voltage quantity processing circuit, the flexibility of the device is poor, and the device can only be configured according to the maximum circuit number of the circuits, so that redundant circuits are idle. To solve the existing problems, a novel distributed parameter acquisition system for the low-voltage power distribution cabinet is researched and designed, and the problem of the existing acquisition technology of the information of the low-voltage power distribution cabinet is very necessary.
Disclosure of Invention
In order to solve the problems in the existing technology for acquiring the information of the low-voltage power distribution cabinet, the invention provides a distributed parameter acquisition system for the low-voltage power distribution cabinet.
The technical scheme adopted by the invention for realizing the purpose is as follows: a distributed parameter acquisition system for a low-voltage power distribution cabinet comprises a direct-current power supply unit, a voltage processing unit, a current processing unit, an information processing unit and an information storage unit; the direct current power supply unit is used for supplying power to the voltage processing unit, the current processing unit, the information processing unit and the information storage unit; the voltage processing unit is used for acquiring voltage information of the low-voltage power distribution cabinet in real time, transmitting the voltage information to the information processing unit and generating a synchronous signal for triggering the current processing unit to work; the current processing unit is used for acquiring current information after being triggered by the synchronous signal and transmitting the current information to the information processing unit; the information processing unit is used for integrating the voltage information and the current information to obtain full electric quantity information and transmitting the full electric quantity information to the information storage unit; and the information storage unit is used for storing the full electric quantity information and transmitting the full electric quantity information to the power distribution operation and maintenance management system.
Preferably, the dc power supply unit is configured to convert an ac voltage into a low-voltage dc voltage, and then supply power to the voltage processing unit, the current processing unit, the information processing unit, and the information storage unit.
Preferably, the voltage processing unit comprises a voltage acquisition module, a voltage CPU module, a first voltage communication module and a second voltage communication module; the voltage acquisition module is used for acquiring and storing three-phase alternating current voltage information of the low-voltage power distribution cabinet in real time; the voltage CPU module is used for adding a time mark to the voltage information and generating a synchronous signal for triggering the current processing unit to collect when a preset condition is reached; the first voltage communication module is used for transmitting the synchronous signal to the current processing unit at a high speed; the second voltage communication module is used for transmitting the voltage information with a time mark to the information processing unit when a preset condition is reached.
Preferably, the first voltage communication module and the second voltage communication module both adopt a two-wire system communication mode.
Preferably, the current handling unit comprises at least one current handling sub-unit.
Preferably, the number of the current processing subunits corresponds to that of outlet branches of the low-voltage power distribution cabinet, and the current processing subunits are arranged in the outlet branches.
Preferably, the current processing subunit comprises a first current communication submodule, a current acquisition submodule, a current CPU submodule and a second current communication submodule; the first current communication submodule is used for receiving the synchronous signal; the current acquisition submodule is used for acquiring and storing current information after being triggered by the synchronous signal; the current CPU submodule is used for adding a time mark for the current information; the second current communication submodule is used for transmitting the current information with time marks to the information processing unit.
Preferably, the first current communication sub-module and the second current communication sub-module both adopt a two-wire system communication mode.
Preferably, the information processing unit performs synchronous processing on the voltage information and the current information according to the time mark to obtain synchronously acquired voltage information and current information corresponding to different times, and calculates the processed information to obtain the full electric quantity information.
The distributed parameter acquisition system for the low-voltage power distribution cabinet, provided by the invention, has the advantages of simple structure, small volume, low cost, flexibility in internal configuration, reduction in the number of voltage acquisition loops of the low-voltage power distribution cabinet, less wiring during construction, improvement in the safety during construction, optimization of the voltage acquisition processing mode, guarantee of the timeliness of information acquisition due to high-speed data communication between the voltage processing unit and the current processing unit, guarantee of the synchronism of current information and voltage information due to synchronous trigger signals generated by the voltage processing unit, and guarantee of the accuracy of full-electric quantity information due to voltage information and current information with time marks.
Drawings
Fig. 1 is a structural diagram of a distributed parameter acquisition system for a low-voltage distribution cabinet according to an embodiment of the present invention;
FIG. 2 is a block diagram of a voltage processing unit according to an embodiment of the present invention;
FIG. 3 is a block diagram of a current handling unit according to an embodiment of the present invention;
fig. 4 is a structural diagram of a current processing subunit according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example 1
The distributed parameter acquisition system for the low-voltage power distribution cabinet is shown in figure 1 and comprises a direct-current power supply unit, a voltage processing unit, a current processing unit, an information processing unit and an information storage unit; the direct current power supply unit is used for supplying power to the voltage processing unit, the current processing unit, the information processing unit and the information storage unit; the voltage processing unit is used for acquiring three-phase alternating current voltage information of the low-voltage power distribution cabinet in real time and generating a trigger synchronous signal, a preset condition generated by the trigger synchronous signal can be set according to conditions, the trigger synchronous signal can be a voltage zero crossing point, and the voltage can be 10V, 20V or 30V. The synchronization signal can be generated by a hardware circuit, such as a zero-crossing comparison circuit, or by software calculation. And the acquired voltage information with the time mark of the low-voltage power distribution cabinet is transmitted to the information processing unit by taking the voltage information as a synchronous clock, and simultaneously the synchronous signal is transmitted to the current processing unit of a loop in a communication or hardware triggering mode, so that the current processing unit is triggered to start acquiring and storing the current signal and transmit the current signal with the time mark to the information processing unit. The information processing unit processes the voltage information and the current information according to the time marks to obtain corresponding voltage information and current information which are synchronously collected at different moments, algorithm processing is carried out on the voltage information and the current information to obtain full electric quantity information of the loop, the full electric quantity information is transmitted to the information storage unit, and the information storage unit is used for storing the full electric quantity information.
As shown in fig. 2, the voltage processing unit may include a voltage acquisition module, a voltage CPU module, a first voltage communication module, and a second voltage communication module; the voltage acquisition module is used for acquiring and storing voltage information of the low-voltage power distribution cabinet in real time and transmitting the voltage information to the voltage CPU module; the voltage CPU module is used for generating a synchronous signal triggering the current processing unit to work when a preset condition is reached, and then the synchronous signal is used as a timing synchronous clock to add a time mark to the voltage information; the first voltage communication module is used for transmitting the synchronous signal generated by the voltage CPU module to the current processing unit at a high speed, and the transmission mode of the first voltage communication module can be a communication or hardware triggering mode; the second voltage communication module is used for transmitting the voltage information which is acquired in real time and provided with the time mark of the low-voltage power distribution cabinet to the information processing unit at a high speed when a preset condition is reached. The preset condition generated by the synchronous signal triggering the current processing unit to work can be set according to the situation, and can be a voltage zero crossing point, and the voltage can also be 10V, 20V or 30V. The synchronization signal can be generated by a hardware circuit, such as a zero-crossing comparison circuit, or by software calculation. The first voltage communication module and the second voltage communication module can both adopt a two-wire system communication mode so as to reduce the number of wiring.
The current processing unit is used for acquiring current information after being triggered by the synchronous signal and transmitting the current information to the information processing unit, as shown in fig. 3, the current processing unit can comprise at least one current processing subunit, the number of the current processing subunits corresponds to that of outgoing lines of the low-voltage power distribution cabinet, the current processing subunits are arranged on the outgoing lines of the low-voltage power distribution cabinet, the low-voltage power distribution cabinet does not exceed 12 outgoing lines generally, and therefore the number of the current processing subunits is generally smaller than 12. As shown in fig. 4, the current processing subunit may include a first current communication submodule, a current collecting submodule, a current CPU submodule, and a second current communication submodule; the first current communication submodule is used for receiving the synchronous signal generated by the voltage processing unit and transmitting the synchronous signal to the current acquisition submodule; the current acquisition submodule is used for acquiring and storing current information after being triggered by the synchronous signal and transmitting the acquired current information to the current CPU submodule; the current CPU submodule is used for adding a time mark to the current information and transmitting the current information with the time mark to the second current communication submodule; and the second current communication submodule is used for transmitting the current information with the time mark to the information processing unit at a high speed. The first current communication submodule and the second current communication submodule can both adopt a two-wire system communication mode so as to reduce the number of wiring.
The information processing unit is used for integrating the voltage information and the current information to obtain total electric quantity information and transmitting the total electric quantity information to the information storage unit, preferably, the voltage information and the current information are provided with time marks, the information processing unit synchronously processes the voltage information and the current information according to the time marks, the voltage information and the current information which correspond to different moments and are synchronously collected are obtained just like the voltage information and the current information which are simultaneously collected, the processed synchronous information is calculated to obtain the total electric quantity information, and the preferred total electric quantity information can comprise the current information, the voltage information, the active and reactive power information and the electric degree information or other harmonic information. The information storage unit is used for storing the full electric quantity information and transmitting the full electric quantity information to the power distribution operation and maintenance management system.
Example 2
The present embodiment is substantially the same as embodiment 1, except that the current processing unit may transmit the current information with the time stamp to the voltage processing unit, the voltage processing unit processes the current information with the time stamp and the voltage information to obtain the full electric quantity information of each branch, and transmits the full electric quantity information to the information processing unit, the information processing unit transmits the obtained full electric quantity information to the information storage unit, and the information storage unit stores the full electric quantity information and transmits the full electric quantity information to the power distribution operation and maintenance management system.
Example 3
The embodiment is basically the same as embodiment 1, except that the voltage processing unit transmits voltage information with a time mark to the current processing unit, the current processing unit processes the current information and the voltage information with the time mark to obtain full electric quantity information of each branch, and transmits the full electric quantity information to the information processing unit, the information processing unit transmits the obtained full electric quantity information to the information storage unit, the information storage unit stores the full electric quantity information, and transmits the full electric quantity information to the power distribution operation and maintenance management system in a wireless internet of things communication mode, and the wireless internet of things communication mode can adopt bluetooth, WIFI, LoRa, ZigiBee or NB-IoT and the like.
The invention reduces the number of voltage acquisition loops of the low-voltage power distribution cabinet, optimizes the voltage acquisition processing mode, ensures the timeliness of information acquisition by high-speed data communication between the voltage processing unit and the current processing unit, ensures the synchronism of current information acquired by the current processing unit by a synchronous signal generated by the voltage processing unit, and simultaneously ensures the synchronism of the voltage information and the current information and the correct calculation of the total electric quantity by the voltage information and the current information with time marks.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. A distributed parameter acquisition system for a low-voltage power distribution cabinet is characterized by comprising a direct-current power supply unit, a voltage processing unit, a current processing unit, an information processing unit and an information storage unit; the direct current power supply unit is used for supplying power to the voltage processing unit, the current processing unit, the information processing unit and the information storage unit; the voltage processing unit is used for acquiring voltage information of the low-voltage power distribution cabinet in real time, transmitting the voltage information to the information processing unit and generating a synchronous signal for triggering the current processing unit to work; the current processing unit is used for acquiring current information after being triggered by the synchronous signal and transmitting the current information to the information processing unit; the information processing unit is used for integrating the voltage information and the current information to obtain full electric quantity information and transmitting the full electric quantity information to the information storage unit; and the information storage unit is used for storing the full electric quantity information and transmitting the full electric quantity information to the power distribution operation and maintenance management system.
2. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 1, wherein the dc power supply unit is configured to convert an ac voltage into a low-voltage dc voltage and supply power to the voltage processing unit, the current processing unit, the information processing unit, and the information storage unit.
3. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 1, wherein the voltage processing unit comprises a voltage acquisition module, a voltage CPU module, a first voltage communication module and a second voltage communication module; the voltage acquisition module is used for acquiring and storing three-phase alternating current voltage information of the low-voltage power distribution cabinet in real time; the voltage CPU module is used for adding a time mark to the voltage information and generating a synchronous signal for triggering the current processing unit to collect when a preset condition is reached; the first voltage communication module is used for transmitting the synchronous signal to the current processing unit at a high speed; the second voltage communication module is used for transmitting the voltage information with a time mark to the information processing unit when a preset condition is reached.
4. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 3, wherein the first voltage communication module and the second voltage communication module both adopt a two-wire system communication mode.
5. The distributed parameter acquisition system for low-voltage distribution cabinets of claim 3, wherein said current processing unit comprises at least one current processing subunit.
6. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 5, wherein the number of the current processing subunits corresponds to that of outgoing branches of the low-voltage power distribution cabinet, and the current processing subunits are arranged in the outgoing branches.
7. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 5, wherein the current processing subunit comprises a first current communication submodule, a current acquisition submodule, a current CPU submodule and a second current communication submodule; the first current communication submodule is used for receiving the synchronous signal; the current acquisition submodule is used for acquiring and storing current information after being triggered by the synchronous signal; the current CPU submodule is used for adding a time mark for the current information; the second current communication submodule is used for transmitting the current information with time marks to the information processing unit.
8. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 7, wherein the first current communication submodule and the second current communication submodule both adopt a two-wire communication mode.
9. The distributed parameter acquisition system for the low-voltage power distribution cabinet according to claim 7, wherein the information processing unit performs synchronous processing on the voltage information and the current information according to the time mark to obtain synchronously acquired voltage information and current information corresponding to different times, and calculates the processed information to obtain the full electric quantity information.
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| CN202111474549.0A CN114156738B (en) | 2021-12-06 | 2021-12-06 | Distributed parameter acquisition system for low-voltage power distribution cabinet |
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| CN202111474549.0A CN114156738B (en) | 2021-12-06 | 2021-12-06 | Distributed parameter acquisition system for low-voltage power distribution cabinet |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206132873U (en) * | 2016-08-30 | 2017-04-26 | 杭州鸿雁智能科技有限公司 | A synchronous sampling system for importing power network signal |
| CN107171235A (en) * | 2017-06-30 | 2017-09-15 | 国网北京市电力公司 | Box-type substation |
| CN110994803A (en) * | 2019-12-23 | 2020-04-10 | 广州东方电科自动化有限公司 | Join in marriage electrical information acquisition and processing system of electrical room |
| CN113049865A (en) * | 2019-12-26 | 2021-06-29 | 深圳市凯弦欣能科技有限公司 | Power parameter detection device and method |
| CN113075474A (en) * | 2021-03-24 | 2021-07-06 | 深圳供电局有限公司 | Electric energy measuring system and method |
-
2021
- 2021-12-06 CN CN202111474549.0A patent/CN114156738B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206132873U (en) * | 2016-08-30 | 2017-04-26 | 杭州鸿雁智能科技有限公司 | A synchronous sampling system for importing power network signal |
| CN107171235A (en) * | 2017-06-30 | 2017-09-15 | 国网北京市电力公司 | Box-type substation |
| CN110994803A (en) * | 2019-12-23 | 2020-04-10 | 广州东方电科自动化有限公司 | Join in marriage electrical information acquisition and processing system of electrical room |
| CN113049865A (en) * | 2019-12-26 | 2021-06-29 | 深圳市凯弦欣能科技有限公司 | Power parameter detection device and method |
| CN113075474A (en) * | 2021-03-24 | 2021-07-06 | 深圳供电局有限公司 | Electric energy measuring system and method |
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