CN111416435A - Low-voltage distribution network comprehensive monitoring system - Google Patents
Low-voltage distribution network comprehensive monitoring system Download PDFInfo
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- CN111416435A CN111416435A CN202010070852.3A CN202010070852A CN111416435A CN 111416435 A CN111416435 A CN 111416435A CN 202010070852 A CN202010070852 A CN 202010070852A CN 111416435 A CN111416435 A CN 111416435A
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Abstract
The invention discloses a low-voltage distribution network comprehensive monitoring system, which comprises: low voltage line monitoring devices, intelligent electric energy meter, the collector, the concentrator, the cloud ware, alarm device and intelligent condenser, low voltage line monitoring devices installs the one side at intelligent electric energy meter, low voltage line monitoring devices is connected with alarm device and concentrator respectively, intelligent electric energy meter is installed in user's ammeter case, the input and the collector of intelligent electric energy meter are connected, the output and the concentrator of intelligent electric energy meter are connected, the opposite side at intelligent electric energy meter is installed to the intelligent condenser, the cloud ware is connected with concentrator and intelligent condenser respectively. According to the invention, various data information of the low-voltage distribution network is acquired through the low-voltage line monitoring device, the collector and the intelligent capacitor, so that the low-voltage distribution network is monitored in real time, and through the display module, workers can know the distribution network information in real time conveniently, so that the occurrence of grid faults is effectively reduced, and the quality of electric energy used by users is improved.
Description
Technical Field
The invention relates to the technical field of monitoring, in particular to a low-voltage distribution network comprehensive monitoring system.
Background
In recent years, although the investment of a power distribution network is gradually increased, the problems of poor foundation, complex topology, roundabout cross power supply and the like of the power distribution network cannot be changed in a short period. Especially, the problems of rural public power distribution areas are more, the quality of electric energy of a resident user side is seriously restricted, and the service level is influenced. At present, a low-voltage transformer area in a power grid company jurisdiction only has data monitoring on a distribution transformer, and monitoring acquisition and asset management on full-state information of low-voltage access equipment in the whole transformer area are lacked. The low-voltage distribution network from the transformer outlet to the user meter is in a monitoring blind area, the management and operation and maintenance unit does not master the operation condition of low-voltage equipment and the distribution and characteristics of low-voltage loads, and once a problem occurs, the low-voltage equipment can only be manually checked, so that time and labor are wasted. Therefore, a monitoring system is urgently needed to monitor comprehensive information of a low-voltage distribution network, reduce waste of manpower and material resources and improve the power quality of a power grid user.
For example, the system is disclosed in Chinese patent documents, the system is disclosed as a 'low-voltage intelligent monitoring system', the system is disclosed as CN109752589A, the system is disclosed as 2019, 05, 14 days in month, and comprises a communication gateway system, a power distribution environment monitoring system and a low-voltage intelligent terminal system, the communication gateway system is respectively connected with the power distribution environment monitoring system and the low-voltage intelligent terminal system through L ORA wireless communication modules, the low-voltage intelligent terminal system comprises a single chip microcomputer, a plurality of serial interfaces, a plurality of SPI interfaces, a plurality of digital interfaces, a clock interface, a PCX interface, an ADC interface, a reset interface, an I2 interface and a power supply interface are arranged in the single chip microcomputer, the clock interface input end is connected with an output end of a clock circuit, the SPI interface is connected with a storage circuit and a wireless communication module of L ORA wireless communication module, the input end of the digital interface is connected with an output end of a voltage acquisition circuit and a current acquisition circuit, the input end of the reset interface is connected with an output end of a reset circuit, the reset interface is connected with an output end of the reset circuit, the reset interface is connected with an RS485 circuit, the input end of a power distribution network, the power distribution network is connected with a plurality of a power distribution network, the single chip microcomputer through a plurality of UART interface, a power distribution network, a wireless communication interface, a power distribution network, a power supply network, a network is connected with a network.
Disclosure of Invention
The invention mainly solves the problem that the information of the low-voltage distribution network in the prior art can not be monitored comprehensively; the comprehensive monitoring system for the low-voltage distribution network is used for comprehensively monitoring the electric energy information of a user side in real time and effectively improving the electric energy quality of the user.
The technical problem of the invention is mainly solved by the following technical scheme: a low-voltage distribution network comprehensive monitoring system comprises a low-voltage line monitoring device, an intelligent electric energy meter, a collector, a concentrator, a cloud server, an alarm device and an intelligent capacitor, the low-voltage line monitoring device is arranged on one side of the intelligent electric energy meter and is respectively connected with the alarm device and the concentrator, the low-voltage line monitoring device is used for detecting the running state of a line and the impedance information of a loop, the intelligent electric energy meter is arranged in an electric meter box of a user, the input end of the intelligent electric energy meter is connected with the collector, the output end of the intelligent electric energy meter is connected with the concentrator, the collector is used for collecting current information and voltage information of a line, the intelligent capacitor is arranged on the other side of the intelligent electric energy meter, the intelligent capacitor is used for monitoring the short circuit capacity of the line, and the cloud server is connected with the concentrator and the intelligent capacitor respectively. The low-voltage power grid data of the user side line are collected through the low-voltage line monitoring device, the collector and the intelligent capacitor, the collected information is transmitted to the cloud server, the user side low-voltage power grid data can be received by workers at the first time, the response speed of the fault is increased when the management is convenient, the waste of manpower and material resources in the operation and maintenance process is reduced, and the use quality of electric energy of the user is effectively improved.
Preferably, the low-voltage line monitoring device further comprises a first wireless communication module and a second wireless communication module, the first wireless communication module is connected with the concentrator, the concentrator is connected with the cloud server through the second wireless communication module, the L ORA wireless network with low power consumption is used as the first wireless communication module to carry out long-distance communication, the power consumption is reduced, the cost is reduced, and the combination of the 4G, WIFI wireless communication module and the Bluetooth wireless communication module is used as the second wireless communication module to realize stable communication between the data acquisition end and the cloud server.
Preferably, the low-voltage line monitoring device comprises a shell, a voltage signal probe, a current signal probe, an AC/DC conversion circuit, a power supply module, a processing chip, an RS485 communication interface and a wireless communication interface, wherein the shell is provided with a cavity for accommodating the AC/DC conversion circuit, the power supply module and the processing chip, through holes are formed in the upper side and the lower side of the shell, a voltage signal probe accommodating groove is formed in the left side of the shell, a current signal probe accommodating groove is formed in the right side of the shell, the voltage signal probe and the current signal probe are connected with the processing chip, low-voltage alternating current is input into the input end of the AC/DC conversion circuit, the output end of the AC/DC conversion circuit is connected with the power supply module, the power supply module is connected with the processing chip, and the processing chip is respectively connected with the RS485 communication interface and, the RS485 communication interface corresponds to the position of the through hole on the upper side of the shell, and the wireless communication interface corresponds to the position of the through hole on the lower side of the shell. Through voltage signal probe and current signal probe, gather electric wire netting circuit data, when not using, the holding tank of accessible casing both sides accomodates signal probe, make signal probe rationally take and put, facilitate the use, and simultaneously, low voltage circuit monitoring devices is from taking AC/DC converting circuit, convert the alternating current of low voltage circuit into the direct current, save through power module, supply with and handle the chip electric energy, low voltage circuit fault information who handles the chip discernment through RS485 communication interface transmits alarm device, make alarm device produce the action, through the wireless communication interface, transmit the low voltage circuit data information of gathering for cloud ware through the concentrator.
Preferably, the voltage signal probe accommodating groove comprises a first door cover plate and a first straight rod, the left side of the first door cover plate is rotatably arranged above the left side of the voltage signal probe accommodating groove of the shell, a first magnet is arranged on the right side of the first door cover plate, a second magnet which is mutually attracted by the first magnet is arranged above the right side of the voltage signal probe accommodating groove, the first door cover plate is used for sealing the voltage signal probe accommodating groove, and the first straight rod is fixedly arranged on one side, back to the voltage signal probe accommodating groove, of the first door cover plate. Through first door apron, when voltage signal probe put into the voltage signal holding tank. Prevent that voltage signal probe from dropping, adsorb first door cover board and voltage signal holding tank through first magnet and second magnet closed, through the first straight-bar of pulling, pull open first door cover board, make things convenient for opening and shutting of first door cover board, make things convenient for taking and depositing of voltage signal probe.
Preferably, the current signal probe accommodating groove comprises a second door cover plate and a second straight rod, the left side of the second door cover plate is rotatably installed above the left side of the current signal probe accommodating groove of the shell, a third magnet is arranged on the right side of the second door cover plate, a fourth magnet which is mutually attracted by the third magnet is arranged above the right side of the current signal probe accommodating groove, the second door cover plate is used for sealing the current signal probe accommodating groove, and the second straight rod is fixedly installed on one side, opposite to the current signal probe accommodating groove, of the second door cover plate. Through the second door cover plate, when the current signal probe is put into the current signal accommodating groove. Prevent that current signal probe from dropping, adsorb the closure with second door cover board and current signal holding tank through third magnet and fourth magnet, through pulling second straight-bar, pull open the second door cover board, make things convenient for opening and shutting of second door cover board, make things convenient for taking and depositing of current signal probe.
Preferably, the AC/DC conversion circuit includes a transformer, a rectifier, a relay, and a voltage stabilizer, wherein a low-voltage AC is input to an input terminal of the transformer, an output terminal of the transformer is connected to an input terminal of the rectifier, an output terminal of the rectifier is connected to a first terminal of the relay, a second terminal of the relay is connected to an input terminal of the voltage stabilizer, and an output terminal of the voltage stabilizer outputs a stable DC. The alternating current is transformed through the transformer, the rectifier is convenient to rectify, the alternating current is converted into direct current through the rectifier, the current is stabilized through the relay protection circuit and the voltage stabilizer, and stable voltage and current are output.
Preferably, the alarm device comprises a voice module and a short message module, the voice module and the short message module are both connected with the low-voltage line monitoring device, the voice module is used for broadcasting fault information detected by the low-voltage line monitoring device, and the short message module is used for sending the fault information detected by the low-voltage line monitoring device to a worker. Report fault information through voice module, make fault information more clear and definite, make things convenient for the staff to carry out maintenance work, inform the staff through SMS module, make the staff know electric wire netting user side situation information the very first time, solve the very first time that breaks down, improve user's electric energy and use and experience.
Preferably, the system further comprises a display module, and the display module is connected with the cloud server. Through the display module, the low-voltage distribution network data information collected by the low-voltage line monitoring device and the collector is displayed in real time, and the staff can know the electric energy performance of the power grid in real time through the display module, and can know the information in advance when the power grid fluctuates, so that the power grid faults are reduced.
The invention has the beneficial effects that: (1) various data information of the low-voltage distribution network is collected through a low-voltage line monitoring device, a collector and an intelligent capacitor, so that the low-voltage distribution network is monitored in real time; (2) the signal probes are convenient to take and store through the accommodating grooves on the two sides of the shell; (3) through the display module, the distribution network information can be conveniently known by the working personnel in real time, the occurrence of power grid faults is effectively reduced, and the power quality used by a user is improved.
Drawings
Fig. 1 is a schematic structural diagram of a monitoring system according to a first embodiment.
Fig. 2 is a schematic structural diagram of a low-voltage line monitoring device according to a first embodiment.
In the figure, 1 is a cloud server, 2 is a concentrator, 3 is a low-voltage line monitoring device, 4 is a collector, 5 is an intelligent electric energy meter, 6 is an alarm device, 7 is an intelligent capacitor, 8 is a display module, 9 is a shell, 10 is an AC/DC conversion circuit, 11 is a power supply module, 12 is a processing chip, 13 is a through hole, 14 is a voltage signal probe accommodating groove, and 15 is a current signal probe accommodating groove.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The first embodiment is as follows: a low-voltage distribution network comprehensive monitoring system is shown in figure 1 and comprises a low-voltage line monitoring device 3, an intelligent electric energy meter 5, a collector 4, a concentrator 2, a cloud server 1, a display module 8, an alarm device 6, an intelligent capacitor 7, a first wireless communication module and a second wireless communication module, wherein the low-voltage line monitoring device 3 is installed on one side of the intelligent electric energy meter 5, the low-voltage line monitoring device 3 is respectively connected with the alarm device 6 and the concentrator 2, the low-voltage line monitoring device 3 is used for detecting the running state of a line and the impedance information of a loop, the intelligent electric energy meter 5 is installed in an electric meter box of a user, the input end of the intelligent electric energy meter 5 is connected with the collector 4, the output end of the intelligent electric energy meter 5 is connected with the concentrator 2, the collector 4 is used for collecting the current information and the voltage information of the line, the intelligent capacitor 7 is, the intelligent capacitor 7 is used for monitoring the short circuit capacity of the line, the cloud server 1 is connected with the concentrator 2 and the intelligent capacitor 7 respectively, the display module 8 is connected with the cloud server 1, the low-voltage line monitoring device 3 is connected with the concentrator 2 through the first wireless communication module, and the concentrator 2 is connected with the cloud server 1 through the second wireless communication module.
As shown in fig. 2, the low-voltage line monitoring device 3 includes a housing 9, a voltage signal probe, a current signal probe, an AC/DC conversion circuit 10, a power supply module 11, a processing chip 12, an RS485 communication interface, a wireless communication interface, a first door cover plate, a first straight rod, a second door cover plate and a second straight rod, wherein the housing 9 is provided with a cavity for accommodating the AC/DC conversion circuit 10, the power supply module 11 and the processing chip 12, the upper side and the lower side of the housing 9 are both provided with through holes 13, the left side of the housing 9 is provided with a voltage signal probe accommodating groove 14, the right side of the housing 9 is provided with a current signal probe accommodating groove 15, the voltage signal probe and the current signal probe are both connected with the processing chip 12, the input end of the AC/DC conversion circuit 10 inputs low-voltage alternating current, the output end of the AC/DC conversion circuit 10 is, processing chip 12 is connected with RS485 communication interface and wireless communication interface respectively, RS485 communication interface corresponds with casing 9 upside through-hole 13 position, wireless communication interface corresponds with casing 9 downside through-hole 13 position, the left side of first door closure board is rotated and is installed in the left side top of the voltage signal probe holding tank 14 of casing 9, the right side of first door closure board is equipped with first magnet, the right side top of voltage signal probe holding tank 14 is equipped with the second magnet with first magnet inter attraction, first door closure board is used for sealing voltage signal probe holding tank 14, first straight rod fixed mounting is in the one side of first door closure board that faces away from voltage signal probe holding tank 14.
The left side of second door-covering board is rotated and is installed in the left side top of the current signal probe holding tank 15 of casing 9, and the right side of second door-covering board is equipped with third magnet, and the right side top of current signal probe holding tank 15 is equipped with the fourth magnet with third magnet inter attraction, and the second door-covering board is used for sealing current signal probe holding tank 15, and second straight-bar fixed mounting is in the one side of second door-covering board that is dorsad current signal probe holding tank 15.
The AC/DC conversion circuit 10 includes a transformer, a rectifier, a relay, and a regulator, wherein a low-voltage AC is input to an input terminal of the transformer, an output terminal of the transformer is connected to an input terminal of the rectifier, an output terminal of the rectifier is connected to a first terminal of the relay, a second terminal of the relay is connected to an input terminal of the regulator, and an output terminal of the regulator outputs a stable DC.
The alarm device 6 comprises a voice module and a short message module, wherein the voice module and the short message module are both connected with the low-voltage line monitoring device 3, the voice module is used for broadcasting fault information detected by the low-voltage line monitoring device 3, and the short message module is used for sending the fault information detected by the low-voltage line monitoring device 3 to a worker.
In the specific application, when a worker correctly installs the low-voltage line monitoring device 3, the intelligent electric energy meter 5 and the intelligent capacitor 7, the first straight rod and the second straight rod are pulled to pull the first door cover plate and the second door cover plate to expose the accommodating notch, the voltage signal probe and the current signal probe are taken out of the accommodating groove and are respectively connected into the low-voltage line, so that the voltage signal probe and the current signal probe start to acquire data from the low-voltage line and transmit the data to the processing chip 12, the processing chip 12 arranges the data, the data are connected with the first wireless communication module through the through hole 13 at the lower side of the shell 9 through the wireless communication interface, the data are sent to the concentrator 2, whether an abnormal condition occurs or not is judged, if the abnormal condition does not occur, no action is generated, if the abnormal condition occurs, an instruction is sent to the alarm device 6, the alarm device 6 comprises a short message module and a voice module, fault information is broadcasted through the voice module, the fault information is more clear, and maintenance work is convenient for workers, the workers are informed through the short message module, the workers can know the situation information of the user side of the power grid at the first time, the problem is solved at the first time when the fault occurs, the user electric energy use experience is improved, meanwhile, the collector 4 collects low-voltage alternating current information in a circuit, the intelligent capacitor 7 detects the short-circuit capacity of the circuit, the collector 4 transmits the data to the concentrator 2 after the data is displayed by the electric energy meter, the concentrator 2 transmits the data of the collector 4 and the data collected by the low-voltage circuit monitoring device 3 after being sorted to the cloud server 1, the intelligent capacitor 7 transmits the detected data to the cloud server 1, the cloud server 1 receives the data in real time, and displays the data through the, the electric energy condition in the low-voltage line of the user side can be connected in real time by the staff, and when the power grid fluctuates, the staff can know the information in advance by one step, so that the power grid faults are reduced.
The invention collects various data information of the low-voltage distribution network through the low-voltage line monitoring device, the collector 4 and the intelligent capacitor 7, thereby realizing the real-time monitoring of the low-voltage distribution network; the signal probes are convenient to take and store through the accommodating grooves on the two sides of the shell 9; through display module 8, make things convenient for the staff to know in real time and join in marriage net information, effectively reduce the emergence of grid fault, improve the electric energy quality that the user used.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. The utility model provides a net integrated monitoring system is joined in marriage to low pressure which characterized by includes:
low pressure circuit monitoring devices, intelligent electric energy meter, collector, concentrator, cloud ware, alarm device and intelligent condenser, low pressure circuit monitoring devices installs the one side at intelligent electric energy meter, low pressure circuit monitoring devices respectively with alarm device and concentrator are connected, low pressure circuit monitoring devices is used for detecting the running state of circuit and the impedance information in return circuit, intelligent electric energy meter installs in user's ammeter case, the input and the collector of intelligent electric energy meter are connected, the output and the concentrator of intelligent electric energy meter are connected, the collector is used for gathering the current information and the voltage information of circuit, the opposite side at intelligent electric energy meter is installed to the intelligent condenser, the intelligent condenser is used for monitoring circuit short circuit capacity, the cloud ware is connected with concentrator and intelligent condenser respectively.
2. The system of claim 1, further comprising a first wireless communication module and a second wireless communication module, wherein the low-voltage line monitoring device is connected to the concentrator through the first wireless communication module, and the concentrator is connected to the cloud server through the second wireless communication module.
3. The system of claim 1, wherein the low voltage line monitoring device comprises a housing, a voltage signal probe, a current signal probe, an AC/DC converter circuit, a power supply module, a processing chip, an RS485 communication interface, and a wireless communication interface, the housing has a cavity for accommodating the AC/DC converter circuit, the power supply module, and the processing chip, the housing has through holes on the upper and lower sides, the housing has a voltage signal probe accommodating groove on the left side, the housing has a current signal probe accommodating groove on the right side, the voltage signal probe and the current signal probe are both connected to the processing chip, the input end of the AC/DC converter circuit inputs low voltage AC, the output end of the AC/DC converter circuit is connected to the power supply module, and the power supply module is connected to the processing chip, the processing chip is respectively connected with the RS485 communication interface and the wireless communication interface, the RS485 communication interface corresponds to the position of the through hole on the upper side of the shell, and the wireless communication interface corresponds to the position of the through hole on the lower side of the shell.
4. The comprehensive monitoring system of the low-voltage distribution network is characterized by further comprising a first door cover plate and a first straight rod, wherein the left side of the first door cover plate is rotatably installed above the left side of a voltage signal probe accommodating groove of the shell, a first magnet is arranged on the right side of the first door cover plate, a second magnet which is mutually attracted with the first magnet is arranged above the right side of the voltage signal probe accommodating groove, the first door cover plate is used for sealing the voltage signal probe accommodating groove, and the first straight rod is fixedly installed on one side, opposite to the voltage signal probe accommodating groove, of the first door cover plate.
5. The comprehensive monitoring system of the low-voltage distribution network is characterized by further comprising a second door cover plate and a second straight rod, wherein the left side of the second door cover plate is rotatably installed above the left side of a current signal probe accommodating groove of the shell, a third magnet is arranged on the right side of the second door cover plate, a fourth magnet which is mutually attracted with the third magnet is arranged above the right side of the current signal probe accommodating groove, the second door cover plate is used for sealing the current signal probe accommodating groove, and the second straight rod is fixedly installed on one side, opposite to the current signal probe accommodating groove, of the second door cover plate.
6. The system of claim 3, wherein the AC/DC conversion circuit comprises a transformer, a rectifier, a relay and a voltage stabilizer, wherein a low-voltage AC is input to an input terminal of the transformer, an output terminal of the transformer is connected to an input terminal of the rectifier, an output terminal of the rectifier is connected to a first terminal of the relay, a second terminal of the relay is connected to an input terminal of the voltage stabilizer, and an output terminal of the voltage stabilizer outputs a stable DC.
7. The system of claim 1, wherein the alarm device comprises a voice module and a short message module, the voice module and the short message module are both connected with the low-voltage line monitoring device, the voice module is used for broadcasting fault information detected by the low-voltage line monitoring device, and the short message module is used for sending the fault information detected by the low-voltage line monitoring device to a worker.
8. The comprehensive monitoring system for the low-voltage distribution network according to claim 1, further comprising a display module, wherein the display module is connected with the cloud server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010070852.3A CN111416435A (en) | 2020-01-21 | 2020-01-21 | Low-voltage distribution network comprehensive monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010070852.3A CN111416435A (en) | 2020-01-21 | 2020-01-21 | Low-voltage distribution network comprehensive monitoring system |
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| CN111416435A true CN111416435A (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010070852.3A Pending CN111416435A (en) | 2020-01-21 | 2020-01-21 | Low-voltage distribution network comprehensive monitoring system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317400A (en) * | 2017-08-10 | 2017-11-03 | 广州供电局有限公司 | Household electricity intelligent monitor system and method |
| CN207677512U (en) * | 2018-04-20 | 2018-07-31 | 云南电网有限责任公司丽江供电局 | It is a kind of with electricity consumption monitoring and to manage system for power distribution network management |
| CN109752589A (en) * | 2019-02-01 | 2019-05-14 | 北京迈驰电气技术有限公司 | A kind of low-voltage intelligent monitoring system |
-
2020
- 2020-01-21 CN CN202010070852.3A patent/CN111416435A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317400A (en) * | 2017-08-10 | 2017-11-03 | 广州供电局有限公司 | Household electricity intelligent monitor system and method |
| CN207677512U (en) * | 2018-04-20 | 2018-07-31 | 云南电网有限责任公司丽江供电局 | It is a kind of with electricity consumption monitoring and to manage system for power distribution network management |
| CN109752589A (en) * | 2019-02-01 | 2019-05-14 | 北京迈驰电气技术有限公司 | A kind of low-voltage intelligent monitoring system |
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Application publication date: 20200714 |