CN112491141A - Real-time safety early warning method and device for smart power grid - Google Patents
Real-time safety early warning method and device for smart power grid Download PDFInfo
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- CN112491141A CN112491141A CN202011301777.3A CN202011301777A CN112491141A CN 112491141 A CN112491141 A CN 112491141A CN 202011301777 A CN202011301777 A CN 202011301777A CN 112491141 A CN112491141 A CN 112491141A
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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
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
Abstract
The invention discloses a real-time safety early warning method and a real-time safety early warning device for a smart grid. The monitoring module and the positioning module are operated by the infrared thermal sensing camera module, the operation data, the environment temperature data and the geographical position information of the power grid are collected in real time, the collected data are transmitted to the processing and analyzing module through the wireless transmission module, and when the collected data received by the processing and analyzing module are processed, normal signals are processed and are transmitted to the early warning linkage control module through the wireless transmission module to revise the parameters of the power grid; and processing the abnormal signal and sending the abnormal signal to an alarm device through a wireless transmission module for alarm processing.
Description
Technical Field
The invention relates to the technical field of smart power grids, in particular to a real-time safety early warning method and device for a smart power grid.
Background
In recent years, with the development of economy, the situation of domestic and foreign power supply is tense, and a power system has a plurality of serious power failure accidents in sequence, so that huge economic loss is caused, the living order of people is influenced, and the society is greatly influenced; the power distribution network is an important component in a power system, the safe and stable operation of the power distribution network is an important link for the safe operation of the whole power grid, and the key link for improving the operation level of a power supply system at present. However, the existing power distribution network is a relatively fragile system, and once a large-area fault or power failure accident occurs, the consequences are serious and even catastrophic; meanwhile, the operation of the power distribution network is also influenced by the conditions of the power grid and weather temperature factors, only early warning can be provided in the prior art, and if parameters of the power grid can be automatically adjusted while early warning is performed, the stability of the power grid and the unattended safety are greatly improved.
Disclosure of Invention
The invention aims to solve the problems and provides a real-time safety early warning method and device for a smart power grid.
In order to achieve the purpose, the invention adopts the following technical scheme:
a real-time safety early warning method and a device for a smart power grid are disclosed, wherein the method comprises the following steps:
s1, transmitting the obtained power grid data information reported by the infrared thermal sensing camera module, the operation monitoring module and the positioning module to the processing and analyzing module through the wireless transmission module, and searching and obtaining operation, temperature and position data corresponding to the power grid data information in power grid historical data;
s2, determining whether the early warning linkage control module needs to be driven to carry out early warning control processing on the power grid or not through a processing and analyzing module according to operation, temperature and position data in the power grid data information and the power grid historical data;
s3, setting a first threshold and a second threshold according to operation data and temperature data in historical data of the power grid, determining whether the absolute value of the difference between the maximum operation data and the maximum temperature data of the power grid and historical average operation data and the temperature in the historical data of the power grid is greater than the first threshold when the processing and analyzing module carries out early warning analysis processing, if so, driving the early warning linkage control module to carry out early warning control processing on the power grid, and alarming through an alarming device;
determining whether the absolute value of the difference between the minimum operation data and the temperature of the power grid and the absolute value of the difference between the minimum temperature data and the historical average operation data and the temperature of the historical data of the power grid are greater than a second threshold value, if so, driving the early warning linkage control module to perform early warning control processing on the power grid, and warning through a warning device;
s4, when the early warning linkage control module carries out early warning control processing, the following operations are carried out: determining the power load of a power grid through the early warning linkage control module, adjusting the frequency of the voltage of the equipment in the power grid through the early warning linkage control module, and adjusting the input power and the output power of the equipment in the power grid based on the frequency.
In S3, the maximum operation data and the minimum operation data of the power grid each include one or more of voltage, current, and frequency.
In S3, a third threshold is set according to the operation data and the temperature data in the power grid historical data, a first difference between the maximum operation data and the minimum operation data in the operation data of the power grid is obtained, and a first difference between maximum temperature data and minimum temperature data in the temperature data of the power grid, obtaining a second difference between historical average maximum operation data and historical average minimum operation data in historical operation data of the power grid, obtaining a second difference between historical average maximum operation data and historical average minimum temperature data in the historical temperature data of the power grid, determining whether an absolute value of a difference between the first difference and the second difference is greater than a third threshold, if so, and driving the early warning linkage control module to carry out early warning control processing on the power grid, and sending warning data through a warning device.
In S4, adjusting the frequency of the voltage of the intra-grid device includes increasing the frequency of the voltage of the intra-grid device to be higher than a first threshold or a second threshold, and decreasing the frequency of the voltage of the intra-grid device to be lower than the second threshold.
In S4, the adjusting the input power and the output power of the intra-grid device includes increasing the input power and the output power of the power supply.
The invention also discloses a real-time safety early warning device for the smart grid, which comprises a shell, an infrared thermal sensing camera module, an operation monitoring module, a processing and analyzing module, an early warning linkage control module, a positioning module, a wireless transmission module and an alarm device;
the infrared thermal sensing camera module, the operation monitoring module, the early warning linkage control module, the positioning module, the wireless transmission module and the alarm device are all electrically connected with the processing and analyzing module;
the operation monitoring module collects operation data of the power grid in real time according to the setting and transmits the collected data to the processing and analyzing module through the wireless transmission module;
the infrared thermal sensing camera module collects the environmental temperature data of the power grid in real time according to the setting and transmits the collected data to the processing and analyzing module through the wireless transmission module;
the positioning module collects geographical position information of the power grid in real time according to the setting and transmits the collected data to the processing and analyzing module through the wireless transmission module;
when the collected data received by the processing and analyzing module is processed, the normal signals are processed and are sent to the early warning linkage control module through the wireless transmission module to revise the power grid parameters; and processing the abnormal signal and sending the abnormal signal to an alarm device through a wireless transmission module for alarm processing.
Optionally, the wireless transmission module includes one or more of WIFI, GPRS, and bluetooth.
Optionally, the modification of the power grid parameters by the early warning linkage control module includes modifying voltage, frequency, and input power and output power of devices in the power grid.
The invention has the following advantages:
the monitoring module and the positioning module are operated by the infrared thermal sensing camera module, the operation data, the environment temperature data and the geographical position information of the power grid are collected in real time, the collected data are transmitted to the processing and analyzing module through the wireless transmission module, and when the collected data received by the processing and analyzing module are processed, normal signals are processed and are transmitted to the early warning linkage control module through the wireless transmission module to revise the parameters of the power grid; and processing the abnormal signal and sending the abnormal signal to an alarm device through a wireless transmission module for alarm processing.
Drawings
Fig. 1 is a schematic structural diagram of a real-time safety early warning device for a smart grid according to the present invention.
In the figure: the system comprises a shell 1, an infrared thermal sensing camera module 2, an operation monitoring module 3, a processing and analyzing module 4, an early warning linkage control module 5, a positioning module 6, a wireless transmission module 7 and an alarm device 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the real-time safety early warning device for the smart grid comprises a shell 1, an infrared thermal sensing camera module 2, an operation monitoring module 3, a processing and analyzing module 4, an early warning linkage control module 5, a positioning module 6, a wireless transmission module 7 and an alarm device 8.
The infrared thermal sensing camera module 2, the operation monitoring module 3, the early warning linkage control module 5, the positioning module 6, the wireless transmission module 7 and the alarm device 8 are all electrically connected with the processing and analyzing module 4.
The operation monitoring module 3 collects the operation data of the power grid in real time according to the setting, and transmits the collected data to the processing and analyzing module 4 through the wireless transmission module 7.
The infrared thermal sensing camera module 2 collects the environmental temperature data of the power grid in real time according to the setting, and transmits the collected data to the processing and analyzing module 4 through the wireless transmission module 7.
The positioning module 6 collects geographical position information of the power grid in real time according to the setting, and transmits the collected data to the processing and analyzing module 4 through the wireless transmission module 7.
When the collected data received by the processing and analyzing module 4 is processed, the normal signals are processed and are sent to the early warning linkage control module 5 through the wireless transmission module 7 to revise the power grid parameters; and processing the abnormal signal and sending the abnormal signal to an alarm device 8 through a wireless transmission module 7 for alarm processing.
The wireless transmission module 7 comprises one or more of WIFI, GPRS and Bluetooth.
The early warning linkage control module 5 revises the power grid parameters, including revising voltage, frequency and input power and output power of the devices in the power grid.
A real-time safety early warning method for a smart power grid comprises the following steps:
s1, the obtained power grid data information reported by the infrared thermal sensing camera module 2, the operation monitoring module 3 and the positioning module 6 is transmitted to the processing and analyzing module 4 through the wireless transmission module 7, and operation, temperature and position data corresponding to the power grid data information in power grid historical data are searched and obtained;
s2, determining whether the early warning linkage control module 5 needs to be driven to carry out early warning control processing on the power grid or not through the processing and analyzing module 4 according to operation, temperature and position data and power grid historical data in the power grid data information;
s3, setting a first threshold and a second threshold according to operation data and temperature data in power grid historical data, determining whether the absolute value of the difference between the maximum operation data and the temperature data of the power grid and the historical average operation data and the temperature in the historical data of the power grid is greater than the first threshold or not when early warning analysis processing is carried out through the processing and analyzing module 4, if yes, carrying out early warning control processing on the power grid through the driving early warning linkage control module 5, and giving an alarm through the alarm device 8;
determining whether the absolute value of the difference between the minimum operation data and the temperature data of the power grid and the historical average operation data and the temperature data in the historical data of the power grid are greater than a second threshold value, if so, driving the early warning linkage control module 5 to perform early warning control processing on the power grid, and warning through the warning device 8;
s4, when the early warning linkage control module 5 performs the early warning control processing, the following operations are performed: the power load of the power grid is determined through the early warning linkage control module 5, the frequency of the voltage of the equipment in the power grid is adjusted through the early warning linkage control module 5, and the input power and the output power of the equipment in the power grid are adjusted based on the frequency.
In S3, the maximum operation data and the minimum operation data of the power grid each include one or more of voltage, current, and frequency.
In the above S3, a third threshold is set according to the operation data and the temperature data in the power grid historical data, a first difference between the maximum operation data and the minimum operation data in the operation data of the power grid and a first difference between the maximum temperature data and the minimum temperature data in the temperature data of the power grid are obtained, a second difference between the historical average maximum operation data and the historical average minimum operation data in the historical operation data of the power grid is obtained, a second difference between the historical average maximum operation data and the historical average minimum temperature data in the historical temperature data of the power grid is obtained, whether an absolute value of a difference between the first difference and the second difference is greater than the third threshold is determined, if yes, the early warning control processing is performed on the power grid by driving the early warning linkage control module 5, and the warning data is sent by the warning device 8.
In S4, adjusting the frequency of the voltage of the intra-grid device includes increasing the frequency of the voltage of the intra-grid device above a first threshold or a second threshold, and decreasing the frequency of the voltage of the intra-grid device below the second threshold.
In S4, the adjusting the input power and the output power of the device within the grid includes increasing the input power and the output power of the power supply.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A real-time safety early warning method for a smart power grid is characterized by comprising the following steps:
s1, power grid data information reported by the infrared thermal sensing camera module (2), the operation monitoring module (3) and the positioning module (6) is acquired and transmitted to the processing and analyzing module (4) through the wireless transmission module (7), and operation, temperature and position data corresponding to the power grid data information in power grid historical data are searched and acquired;
s2, determining whether the early warning linkage control module (5) needs to be driven to carry out early warning control processing on the power grid or not through a processing and analyzing module (4) according to operation, temperature and position data in the power grid data information and the power grid historical data;
s3, setting a first threshold and a second threshold according to operation data and temperature data in historical data of the power grid, determining whether the absolute value of the difference between the maximum operation data and the maximum temperature data of the power grid and the historical average operation data and the temperature in the historical data of the power grid is greater than the first threshold when the processing and analyzing module (4) performs early warning analysis processing, if so, driving the early warning linkage control module (5) to perform early warning control processing on the power grid, and alarming through an alarming device (8);
determining whether the absolute value of the difference value between the minimum operation data and the temperature data of the power grid and the historical average operation data and the temperature data in the historical data of the power grid are larger than a second threshold value or not, if so, driving the early warning linkage control module (5) to perform early warning control processing on the power grid, and warning through a warning device (8);
s4, when the early warning linkage control module (5) carries out early warning control processing, the following operations are carried out: the power load of the power grid is determined through the early warning linkage control module (5), the frequency of the voltage of the equipment in the power grid is adjusted through the early warning linkage control module (5), and the input power and the output power of the equipment in the power grid are adjusted based on the frequency.
2. The real-time security pre-warning method for the smart grid according to claim 1, wherein in S3, the maximum operation data and the minimum operation data of the smart grid each include one or more of voltage, current, and frequency.
3. The real-time security pre-warning method for the smart grid according to claim 1, wherein in step S3, a third threshold is set according to operation data and temperature data in historical data of the power grid, a first difference between maximum operation data and minimum operation data in the operation data of the power grid and a first difference between maximum temperature data and minimum temperature data in the temperature data of the power grid are obtained, a second difference between historical average maximum operation data and historical average minimum operation data in the historical operation data of the power grid are obtained, a second difference between historical average maximum operation data and historical average minimum temperature data in the historical temperature data of the power grid are obtained, whether an absolute value of a difference between the first difference and the second difference is greater than the third threshold is determined, and if yes, the pre-warning control processing is performed on the power grid by driving the pre-warning linkage control module (5), and sends alarm data through an alarm device (8).
4. The real-time security pre-warning method for the smart grid according to claim 1, wherein in step S4, the adjusting the frequency of the voltage of the device within the smart grid includes increasing the frequency of the voltage of the device within the smart grid to be higher than a first threshold or a second threshold, and decreasing the frequency of the voltage of the device within the smart grid to be lower than the second threshold.
5. The real-time security pre-warning method for the smart grid according to claim 1, wherein in step S4, the adjusting the input power and the output power of the device within the smart grid includes increasing the input power and the output power of a power supply.
6. A real-time safety early warning device for a smart power grid is characterized by comprising a shell (1), an infrared thermal sensing camera module (2), an operation monitoring module (3), a processing and analyzing module (4), an early warning linkage control module (5), a positioning module (6), a wireless transmission module (7) and an alarm device (8);
the infrared thermal sensing camera module (2), the operation monitoring module (3), the early warning linkage control module (5), the positioning module (6), the wireless transmission module (7) and the alarm device (8) are electrically connected with the processing and analyzing module (4);
the operation monitoring module (3) collects operation data of the power grid in real time according to the setting, and transmits the collected data to the processing and analyzing module (4) through the wireless transmission module (7);
the infrared thermal sensing camera module (2) collects the environmental temperature data of the power grid in real time according to the setting, and transmits the collected data to the processing and analyzing module (4) through the wireless transmission module (7);
the positioning module (6) collects geographical position information of the power grid in real time according to the setting, and transmits the collected data to the processing and analyzing module (4) through the wireless transmission module (7);
when the collected data received by the processing and analyzing module (4) are processed, the normal signals are processed and are sent to the early warning linkage control module (5) through the wireless transmission module (7) to revise the power grid parameters; and processing the abnormal signal and sending the abnormal signal to an alarm device (8) through a wireless transmission module (7) for alarm processing.
7. The real-time safety pre-warning device for the smart grid according to claim 6, wherein the wireless transmission module (7) comprises one or more of WIFI, GPRS and Bluetooth.
8. The real-time safety pre-warning device for the smart grid according to claim 6, wherein the pre-warning linkage control module (5) revises the grid parameters including revising voltage, frequency and input power and output power of devices in the grid.
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| CN202011301777.3A CN112491141A (en) | 2020-11-19 | 2020-11-19 | Real-time safety early warning method and device for smart power grid |
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| CN202011301777.3A CN112491141A (en) | 2020-11-19 | 2020-11-19 | Real-time safety early warning method and device for smart power grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115471796A (en) * | 2022-11-14 | 2022-12-13 | 河北电力工程监理有限公司 | Power grid engineering supervision system and method based on machine vision |
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