CN116526676B - Intelligent substation monitoring and early warning system based on internet of things technology - Google Patents

Intelligent substation monitoring and early warning system based on internet of things technology Download PDF

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Publication number
CN116526676B
CN116526676B CN202310530110.8A CN202310530110A CN116526676B CN 116526676 B CN116526676 B CN 116526676B CN 202310530110 A CN202310530110 A CN 202310530110A CN 116526676 B CN116526676 B CN 116526676B
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module
load
power supply
power
supply
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CN116526676A (en
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高鹏飞
张义军
王祁
王笃乐
房帅
张文瑞
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Lianyungang Zhiyuan Electric Power Design Co ltd
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Lianyungang Zhiyuan Electric Power Design Co ltd
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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
    • H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/185—Electrical failure alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
    • 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
    • H02J13/00002—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 monitoring
    • 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
    • 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
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • 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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses an intelligent substation monitoring and early warning system based on the internet of things technology, which comprises a main power supply module (1), a load/output end (2), a main power supply monitoring module (3), a load monitoring module (4), an auxiliary storage and discharge module (5), an auxiliary storage and discharge detection module (6), a substation integrated management module (7) and an alarm unit (8).

Description

Intelligent substation monitoring and early warning system based on internet of things technology
Technical Field
The invention relates to the technical field of intelligent substation monitoring, in particular to an intelligent substation monitoring and early warning system based on the internet of things technology.
Background
Electricity may be an indispensable thing in today's society, whether it is home, industrial production, or communication, or office. The household needs electricity to illuminate and various household appliances are started; industrial machinery for industrial production and its monitoring and management systems are also almost all that is required to be powered in order for the monitoring and management systems to operate; and the equipment such as computers in various office places can be operated only by the same electricity; it can be said that no electricity is a step for the current society.
In order to provide stable operation for our life and production, stable electric energy needs to be provided. And as an important link for providing electric energy, the transformer substation is an important component for providing stable power supply, and stable electric energy can be provided and reasonably controlled according to the requirements of users through the transformer substation so as to meet the requirements of the users. For this reason, the need to maintain stable operation of the substation is an important basis for providing a stable power supply. In general, the transformer station is monitored, and there are also many studies on monitoring and management of the transformer station, and corresponding results are achieved, such as
Patent application CN107069954a discloses a cloud maintenance system and a monitoring system for substation equipment, wherein the cloud maintenance system comprises a substation monitoring subsystem and a remote maintenance subsystem, the substation monitoring subsystem comprises a monitoring layer and an evaluating layer, the monitoring layer is used for monitoring relevant state information of the substation equipment and outputting the state information to a server in the evaluating layer so as to obtain health status data of the substation equipment; the remote maintenance subsystem comprises a cloud maintenance workstation which is used for being in remote communication connection with the evaluation server through a network and is used for receiving the health condition data of the substation equipment sent by the evaluation server. The system does not have all operation state information of the substation total station transmitted remotely, the obtained health status data of the substation equipment are transmitted remotely, the data are not scattered, the data size is small, the data loss is not easy to occur, and the cloud maintenance workstation can not misjudge the operation state of the substation.
Patent application CN106655512A discloses a transformer substation monitoring system based on internet of things, including distribution monitoring center, information server, electric power private network or wireless broadband network, wireless sensor network, acquisition system is including the distribution room operational environment state monitoring module, distribution room security protection monitoring module, equipment operational state monitoring module, the RFID information acquisition module that are equipped with wireless transmission module respectively, acquisition system is connected the information that gathers to wireless sensor network through wireless transmission module to connect electric power private network or wireless broadband network and upload to information server through wireless sensor network, distribution monitoring center connection information server is with various information parameter of distribution substation, early warning information real-time push to each department LED display screen. The invention realizes the remote monitoring of the power distribution room, saves human resources and can monitor various conditions of the power distribution room in real time.
Patent application CN104332669a discloses a method and a system for intelligent on-line monitoring and maintenance of a substation storage battery, which comprises the steps of firstly collecting internal performance and external environment information of the storage battery, detecting the performance of the storage battery, carrying out sulfur removal maintenance, transmitting the collected information to a base station, transmitting the information to a background server, arranging the data information, drawing a graph and storing a table, and transmitting the finally arranged data to a centralized control center. The transformer substation integrates the online charging and discharging of the storage battery, the online internal resistance testing technology, the remote monitoring and the database management analysis, has high intelligent degree, and can remotely perform online monitoring and maintenance on a large range of storage batteries.
Patent application CN103825944a discloses a transformer substation safety management system based on thing networking, including server, switch, internal switch, front-end processor, WSN node and mobile terminal, the server with the switch passes through internal local area network connection communication, the switch with internal switch passes through power line carrier network connection communication, internal switch with the front-end processor passes through middle-voltage broadband power line carrier overhead line and optic fibre hybrid connection communication, the front-end processor passes through Zigbee wireless sensor self-organizing network the WSN node with mobile terminal communication. The invention realizes the safety operation management of the transformer substation, equipment monitoring and environment sensing, and the mixed networking of the medium-low voltage communication access network effectively solves the communication bottleneck problem of the last kilometer of the distribution network.
Patent application CN104318732a discloses a substation field personnel monitoring management system and method based on video analysis and RFID, the management system comprises: the video monitoring module is used for collecting video data of the scene, the dangerous area and the key equipment area; the RFID identification module is used for reading RFID tag information of personnel in a wireless mode and transmitting the RFID tag information to the monitoring center through the Ethernet for personnel authority analysis; the sound early warning module is connected with the monitoring center and sends early warning prompt information according to video analysis and personnel authority analysis; and the monitoring center is used for analyzing the received monitoring video and the personnel RFID tag information result. The invention can identify whether the on-site staff wears the safety helmet and the color through the video analysis technology and identify the identity authority of the staff through the RFID technology, can stop the potential safety hazard that the staff enters the on-site area without wearing the safety helmet and wrongly entering the forbidden area, and can realize the anti-theft function.
Patent application CN107121606a discloses a cloud maintenance system and a monitoring system for substation equipment, wherein the cloud maintenance system comprises a substation monitoring subsystem and a remote maintenance subsystem, the substation monitoring subsystem comprises a monitoring layer and an evaluation layer, the monitoring layer is used for monitoring relevant state information of the substation equipment and outputting the state information to a server in the evaluation layer so as to obtain health status data of the substation equipment; the remote maintenance subsystem comprises a cloud maintenance workstation which is used for being in remote communication connection with the evaluation server through a network and is used for receiving the health condition data of the substation equipment sent by the evaluation server. The system does not have all operation state information of the substation total station transmitted remotely, the obtained health status data of the substation equipment are transmitted remotely, the data are not scattered, the data size is small, the data loss is not easy to occur, and the cloud maintenance workstation can not misjudge the operation state of the substation.
Therefore, in terms of management of the transformer substation in the prior art, there are the following technical drawbacks:
1. in the aspect of monitoring and managing the transformer substation in the prior art, more operation states of the transformer substation are displayed, more operation states of the transformer substation are monitored, and actual operation conditions and risks of the transformer substation are not effectively aimed at;
2. in the prior art, in a power supply module of a transformer substation, although an energy storage power station is also arranged to provide auxiliary power, sufficient systematic management and monitoring cannot be realized, which obviously is unfavorable for the management of the transformer substation and is also unfavorable for providing stable power supply.
In view of the above technical problems, it is desirable to provide a rapid, low-cost and stable substation management system, and no effective solution is available at present.
Disclosure of Invention
The invention aims to provide an intelligent substation monitoring and early warning system based on the internet of things technology, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an intelligent substation monitoring and early warning system based on the internet of things technology comprises a main power supply module, a load/output end, a main power supply monitoring module, a load monitoring module, an auxiliary storage and discharge detection module, a substation comprehensive management module and an alarm unit;
the main power supply module supplies power for the connected power transmission equipment; the load/output end comprises a plurality of load power supply access ends and a load selection switch; the auxiliary storage and discharge module is used for storing redundant electric energy of the main power supply module or assisting the main power supply module to jointly supply power to the load/output end, and comprises a power supply selection input/output module and a storage and discharge unit;
the main power supply module is used for supplying power to the load module and supplying power P to the main power supply source supply >The required power P of the load module load When the auxiliary power supply module is used, the redundant electric energy of the main power supply is stored in the auxiliary power storage and release module; the load/output end is used for receiving electric energy of at least one of the main power supply module or the auxiliary storage and discharge module, and the storage and discharge unit in the auxiliary storage and discharge module is used for storing the redundant electric energy or discharging the electric energy stored in the storage and discharge unit;
the main power supply monitoring module is respectively connected with the main power supply module and the transformer substation integrated management module in a data communication manner; the load monitoring module is respectively connected with the load/output end and the transformer substation integrated management module in a data communication manner; the auxiliary electricity storage and discharge monitoring module is respectively connected with the auxiliary electricity storage and discharge module and the transformer substation comprehensive management module in a data communication manner;
the alarm unit is also connected with the transformer substation integrated management module in a data communication manner and is used for alarming when receiving that the transformer substation is abnormal or the load is not matched with the power supply;
the method is characterized in that: when the intelligent substation monitoring and early warning system operates, the main power supply monitoring module and the load monitoring module respectively monitor the power supply power P of the main power supply module supply And the required power P of the load/output end load And sending the result to the comprehensive management module of the transformer substation;
when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module does not complete all charging tasks, the substation integrated management module controls the main power supply module to supply power to the load/output end and the auxiliary storage and discharge module respectively;
when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module completes all charging tasks, the substation integrated management module controls the main power supply module to reduce the power supply power Psupply;
when the power supply power Psupply is smaller than the required power Pload and the auxiliary storage and discharge module has electric energy and can output, the transformer substation integrated management module controls the main power supply module and the auxiliary storage and discharge module to supply power to the load/output end in a combined mode;
when the power supply P supply Less than the required power P load When the auxiliary power storage and release module is provided with the power output, but the power supply power P supply And the power P of the auxiliary storage and discharge module asupply The sum is still smaller than P load The integrated management module of the transformer substation controls the reduction of the load demand power to the power supply power P supply And the power P of the auxiliary storage and discharge module asupply Sum ofThe following are set forth;
when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module does not have electric energy output, the integrated management module of the transformer substation controls and reduces the load demand power to the power supply power P supply The following is given.
Preferably, the integrated management module of the transformer substation further comprises a display module, wherein the display module displays a structural schematic diagram of a main power supply module, a load/output end, a main power supply monitoring module, a load monitoring module, an auxiliary storage and discharge detection module, an integrated management module of the transformer substation and an alarm unit, and adopts a communication connection relation of thin lines to connect the modules in the schematic diagram; and simultaneously, the running state of the module is displayed under each module.
Preferably, the integrated management module of the transformer substation comprises a data analysis module, wherein the data analysis module is used for respectively counting the power supply and the discharge of the main power supply module, the load/output end and the auxiliary power storage and discharge module, and if the power exceeds a certain load power and is larger than the power supply power in a counting period, the main power supply is increased, otherwise, the main power supply is reduced.
Preferably, the load/output end comprises a plurality of load modules, the load modules are connected to a power supply output end formed by the auxiliary power storage and release modules of the main power supply module through load selection switches, and the load selection switches are used for controlling whether the load modules are communicated or not, so that the connection and disconnection of the load modules are controlled, the load and the power supply are matched, and overload phenomenon does not occur; and displaying the disconnected load module through the display module.
Preferably, the load modules are prioritized such that when all of the load modules occur at a power greater than the supply power P supply And P asupply Sum ofWhen the load devices with the lowest priority are disconnected, and the power of all the load modules is still larger than the power supply power P supply And Pasupply, disconnecting the load module with the lowest priority in all the rest load modules again.
Preferably, the data analysis module counts the power P of the main power supply module at a certain time T supply *T>P Load * T, but for a certain period of time T P supply +P asupply <p Load The capacity of the auxiliary storage and discharge module is too small, and the capacity of the auxiliary storage and discharge module needs to be increased.
Preferably, the priority level of the load module is numbered, and the priority of the load module connected through the load selection switch is set, when the power supply power P supply And the power P of the auxiliary storage and discharge module asupply The sum is still smaller than P load And the integrated management module of the transformer substation controls the load module with low priority to be disconnected preferentially.
Preferably, the integrated management module of the transformer substation further counts the peak value of the electric energy of the main power supply module and the auxiliary storage and discharge module, and an accumulated value of the electricity utilization period T, and if P is satisfied when the accumulated value is the accumulated value supply *T>P load *T,P supply +P asupply >P load And if not, the auxiliary storage and discharge module is added.
The transformer substation integrated management module comprises a camera shooting module and a temperature sensing module, wherein the camera shooting module and the temperature sensing module are arranged on the main power supply module, the load module and the auxiliary storage and discharge module, so that the operation conditions and the temperatures of the main power supply module, the load module and the auxiliary storage and discharge module are monitored and are sent to the display module to be displayed, and meanwhile, the integrated management module alarms through the alarm module when detecting that the temperature exceeds a temperature threshold value or the image display related module is abnormal.
In another aspect, the application of the intelligent substation monitoring and early warning system based on the internet of things technology is provided, the intelligent substation monitoring and early warning system based on the internet of things technology is included, and the application method is as follows:
step S1, when the intelligent substation monitoring and early warning system operates, the main power supply monitoring module and the load monitoring module respectively monitor the power supply power P of the main power supply module supply And the required power P of the load/output end load And sending the result to the comprehensive management module of the transformer substation;
step S2, when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module does not complete all charging tasks, the substation integrated management module controls the main power supply module to supply power to the load/output end and the auxiliary storage and discharge module respectively;
step S3, when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module completes all charging tasks, the substation integrated management module controls the main power supply module to reduce the power supply power P supply ；
Step S4, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module has electric energy and can output the electric energy, the transformer substation integrated management module controls the main power supply module and the auxiliary storage and discharge module to supply power to the load/output end in a combined mode;
step S5, when the power supply P supply Less than the required power P load When the auxiliary power storage and release module is provided with the power output, but the power supply power P supply And the power P of the auxiliary storage and discharge module asupply The sum is still smaller than P load The integrated management module of the transformer substation controls the reduction of the load demand power to the power supply power P supply And the power P of the auxiliary storage and discharge module asupply The sum is below;
step S6, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module does not have electric energy output, the integrated management module of the transformer substation controls and reduces the load demand power to the power supply power P supply The following are set forth;
step S7, the data analysis module counts the power supply power P of the main power supply module in a certain time T supply *T>P Load * T, but for a certain period of time T P supply +P asupply <p Load The capacity of the auxiliary storage and discharge module is excessively small, and the capacity of the auxiliary storage and discharge module needs to be increased;
step S8, numbering the priority level of the load module, setting the priority of the accessed load module through the load selection switch, and when the power supply power P is the same supply And the power P of the auxiliary storage and discharge module asupply The sum is still smaller than P load And the integrated management module of the transformer substation controls the load module with low priority to be disconnected preferentially.
Step S9, the transformer substation integrated management module further counts the electric energy peak values of the main power supply module and the auxiliary storage and discharge module and an electricity utilization period T accumulated value, and if P is met when the accumulated value is obtained supply *T>P load *T,P supply +P asupply >P load The auxiliary power supply station or auxiliary power supply is not needed, otherwise, the auxiliary power storage and discharge module is added;
and step S10, the alarm unit is also connected with the integrated management module of the transformer substation in a data communication manner and is used for alarming when receiving that the transformer substation is abnormal or the load and the power supply are not matched.
Preferably, the integrated management module of the transformer substation comprises a data analysis module, wherein the data analysis module is used for respectively counting the power supply and the discharge of the main power supply module, the load/output end and the auxiliary power storage and discharge module, and if the power exceeds a certain load power and is larger than the power supply power in a counting period, the main power supply is increased, otherwise, the main power supply is reduced.
Compared with the prior art, the invention has the beneficial effects that:
1. the intelligent substation monitoring and early warning system based on the internet of things is not limited to simply observing power supply and load parameters of the substation, but is based on deep monitoring and regulation of the whole aspects of load and power supply, so that corresponding equipment of the substation is at least, and power supply cost is reduced.
2. According to the intelligent substation monitoring and early warning system based on the internet of things, capacities of the substation and the auxiliary storage and discharge module are fully considered, the substation and the auxiliary storage and discharge module are reasonably configured based on power, and the main power supply module and the auxiliary storage and discharge module are reasonably regulated and controlled, so that stable electric energy is provided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an intelligent substation monitoring and early warning system based on the Internet of things technology;
FIG. 2 is a schematic diagram of the overall structure of the intelligent substation monitoring and early warning system based on the Internet of things technology;
fig. 3 is a schematic structural diagram of a substation integrated management module of the intelligent substation monitoring and early warning system based on the internet of things technology.
In the figure: 1. a main power supply module; 2. a load/output; 3. a main power supply monitoring module; 4. a load monitoring module; 5. an auxiliary storage and discharge module; 6. an auxiliary storage and discharge detection module; 7. a transformer substation comprehensive management module; 8. an alarm unit; 9. a load power supply access terminal; 10. a load selection switch; 11. a power supply selection input/output module; 12. a storage and discharge unit; 13. a display module; 14. and a data analysis module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1, the present invention provides a technical solution: an intelligent substation monitoring and early warning system based on the internet of things technology comprises a main power supply module 1, a load/output end 2, a main power supply monitoring module 3, a load monitoring module 4, an auxiliary storage and discharge module 5, an auxiliary storage and discharge detection module 6, a substation comprehensive management module 7 and an alarm unit 8;
the main power supply module 1 supplies power for the connected power transmission equipment; the load/output terminal 2 comprises a plurality of load power supply access terminals 9 and a load selection switch 10; the auxiliary storage and discharge module 5 is used for storing the redundant electric energy of the main power supply module 1 or assisting the main power supply module 1 to supply power to the load/output end 2 together, and the auxiliary storage and discharge module 5 comprises a power supply selection input/output module 11 and a storage and discharge unit 12;
the main power supply module 1 is used for supplying power to the load module and supplying power P to the main power supply source supply >The required power P of the load module load When the power supply is in operation, the redundant electric energy of the main power supply is stored in the auxiliary storage and discharge module 5; the load/output end 2 is used for receiving electric energy of at least one of the main power supply module 1 or the auxiliary power storage and discharge module 5, and the power storage and discharge unit 12 in the auxiliary power storage and discharge module 5 is used for storing the redundant electric energy or discharging the electric energy stored in the power storage and discharge unit 12;
the main power supply monitoring module 3 is respectively connected with the main power supply module 1 and the transformer substation integrated management module 7 in a data communication manner; the load monitoring module is respectively connected with the load/output end 2 and the transformer substation integrated management module 7 in a data communication manner; the auxiliary storage and discharge monitoring module 6 is respectively connected with the auxiliary storage and discharge module 5 and the transformer substation integrated management module 7 in a data communication manner;
the alarm unit 8 is also in data communication connection with the transformer substation integrated management module 7 and is used for alarming when receiving that the transformer substation is abnormal or the load and the power supply are not matched;
the method is characterized in that: at the position ofWhen the intelligent substation monitoring and early warning system operates, the main power supply monitoring module 3 and the load monitoring module 4 respectively monitor the power supply power P of the main power supply module 1 supply And the required power P of the load/output terminal 2 load And sends the result to the integrated management module 7 of the transformer substation;
when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module 5 does not complete all charging tasks, the substation integrated management module 7 controls the main power supply module 1 to supply power to the load/output end 2 and the auxiliary storage and discharge module 5 respectively;
when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module 5 completes all charging tasks, the substation integrated management module 7 controls the main power supply module 1 to reduce the power supply power P supply ；
When the power supply P supply Less than the required power P load When the auxiliary storage and discharge module 5 has electric energy and can output the electric energy, the substation integrated management module 7 controls the main power supply module 1 and the auxiliary storage and discharge module 5 to jointly supply power to the load/output end 2;
when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module 5 is provided with the power output, but the power supply P supply And the power P of the auxiliary power storage and discharge module 5 asupply The sum is still smaller than P load The integrated management module 7 controls the load demand power to be reduced to the power supply power P supply And the power P of the auxiliary power storage and discharge module 5 asupply The sum is below;
when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module 5 does not have the power output, the integrated management module 7 of the transformer substation controls to reduce the load demand power to the power supply power P supply The following is given.
Preferably, the integrated management module 7 of the transformer substation further includes a display module 13, where the display module 13 displays a schematic structural diagram of the main power supply module 1, the load/output end 2, the main power supply monitoring module 3, the load monitoring module 4, the auxiliary storage and discharge module 5, the auxiliary storage and discharge detection module 6, the integrated management module 7 of the transformer substation and the alarm unit 8, and adopts a communication connection relationship of connecting the modules by thin lines in the schematic diagram, when the communication connection of the two modules is good, the thin lines between the two modules are identified by green lines, when the communication of the two modules is disconnected, the two modules are connected by gray thin lines, and when the communication connection of the two modules has faults, the two modules are connected by red thin lines; and simultaneously, the running state of the module is displayed under each module.
Preferably, the integrated management module 7 of the transformer substation includes a data analysis module 14, where the data analysis module 14 is configured to count power supply and discharge of the main power supply module 1, the load/output end 2, and the auxiliary power storage and discharge module 5, respectively, and increase the main power supply when a certain load power exceeds the power supply in a statistics period, or decrease the main power supply.
Preferably, the load/output end 2 includes a plurality of load modules, the load modules are connected to a power supply output end formed by the auxiliary storage and discharge modules 5 of the main power supply module 1 through a load selection switch 10, the load selection switch 10 is used for controlling whether each load module is communicated or not, so as to control the connection and disconnection of the load modules, so that the load and the power supply are matched, and overload phenomenon does not occur; and the disconnected load module is displayed by means of said display module 13.
Preferably, the load modules are prioritized such that when all of the load modules occur at a power greater than the supply power P supply And P asupply When the sum is over, the load devices with the lowest priority are disconnected firstly, and when the power of all the load modules is still larger than the power supply power P supply And P asupply And when the sum is over, disconnecting the load module with the lowest priority in all the rest load modules 2 again.
Preferably, the data is divided intoThe analysis module 14 counts the power P of the main power supply module at a certain time T supply *T>P Load * T, but for a certain period of time T P supply +P asupply <p Laod It is indicated that the capacity of the auxiliary storage electric module 5 is too small, and the capacity of the auxiliary storage electric module 5 needs to be increased.
Preferably, the load modules are numbered with priority levels, and the priority of the load modules to be accessed is set by the load selection switch 10, when the power supply power P supply And the power P of the auxiliary power storage and discharge module 5 asupply The sum is still smaller than P load The integrated management module 7 of the transformer substation controls the load module with low priority to be disconnected preferentially.
Preferably, the integrated management module 7 of the substation further counts the peak power of the main power supply module 1 and the auxiliary power storage and discharge module 5, and an integrated value of the power consumption period T, when the integrated value, if P is satisfied supply *T>P load *T,P supply +P asupply >P load No additional power supply station or auxiliary power supply is required, otherwise the auxiliary storage and discharge module 5 is added.
Embodiment two:
the application of the intelligent substation monitoring and early warning system based on the internet of things technology comprises the intelligent substation monitoring and early warning system based on the internet of things technology, and the application method comprises the following steps:
step S1, when the intelligent substation monitoring and early warning system operates, the main power supply monitoring module 3 and the load monitoring module 4 monitor the power supply P of the main power supply module 1 respectively supply And the required power P of the load/output terminal 2 load And sends the result to the integrated management module 7 of the transformer substation;
step S2, when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module 5 does not complete all charging tasks, the substation integrated management module 7 controls the main power supply module 1 to respectively supply power to the load/output end 2 and the auxiliary storage and discharge moduleThe module 5 supplies power;
step S3, when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module 5 completes all charging tasks, the substation integrated management module 7 controls the main power supply module 1 to reduce the power supply power P supply ；
Step S4, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module 5 has electric energy and can output the electric energy, the substation integrated management module 7 controls the main power supply module 1 and the auxiliary storage and discharge module 5 to jointly supply power to the load/output end 2;
step S5, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module 5 is provided with the power output, but the power supply P supply And the power P of the auxiliary power storage and discharge module 5 asupply The sum is still smaller than P load The integrated management module 7 controls the load demand power to be reduced to the power supply power P supply And the power P of the auxiliary power storage and discharge module 5 asupply The sum is below;
step S6, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module 5 does not have the power output, the integrated management module 7 of the transformer substation controls to reduce the load demand power to the power supply power P supply The following are set forth;
step S7, the data analysis module 14 counts the power P of the main power supply module at a certain time T supply *T>P Load * T, but for a certain period of time T P supply +P asupply <p Laod Indicating that the capacity of the auxiliary storage electric module 5 is too small, and increasing the capacity of the auxiliary storage electric module 5 is required;
step S8, numbering the priority level of the load module, setting the priority of the load module connected by the load selection switch 10, and when the power P is supplied supply And the power P of the auxiliary power storage and discharge module 5 asupply The sum is still smaller than P load The integrated management module 7 of the transformer substation controls the load module with low priority to be disconnected preferentially.
Step S9, the integrated management module 7 of the transformer substation further counts the peak power of the main power supply module 1 and the auxiliary power storage and discharge module 5, and an accumulated value of the power utilization period T, and if P is satisfied as the accumulated value supply *T>P load *T,P supply +P asupply >P load The power supply station or auxiliary power supply is not needed to be added, otherwise, the auxiliary storage and discharge module 5 is added;
and step S10, the alarm unit 8 is also connected with the integrated management module 7 of the transformer substation in a data communication manner and is used for alarming when receiving that the transformer substation is abnormal or the load and the power supply are not matched.
Preferably, the integrated management module 7 of the transformer substation includes a data analysis module 14, where the data analysis module 14 is configured to count power supply and discharge of the main power supply module 1, the load/output end 2, and the auxiliary power storage and discharge module 5, respectively, and increase the main power supply when a certain load power exceeds the power supply in a statistics period, or decrease the main power supply.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. An intelligent substation monitoring and early warning system based on the internet of things technology comprises a main power supply module (1), a load/output end (2), a main power supply monitoring module (3), a load monitoring module (4), an auxiliary storage and discharge module (5), an auxiliary storage and discharge detection module (6), a substation comprehensive management module (7) and an alarm unit (8); the integrated management module (7) of the transformer substation also comprises a display module (13),
the main power supply module (1) supplies power for the connected power transmission equipment; the load/output terminal (2) comprises a plurality of load power supply access terminals (9) and a load selection switch (10); the auxiliary storage and discharge module (5) is used for storing redundant electric energy of the main power supply module (1) or assisting the main power supply module (1) to jointly supply power to the load/output end (2), and the auxiliary storage and discharge module (5) comprises a power supply selection input/output module (11) and a storage and discharge unit (12);
the main power supply module (1) is used for supplying power to the load module and supplying power P to the main power supply module supply >The required power P of the load module load When the auxiliary power supply module is used, redundant electric energy of the main power supply module is stored in the auxiliary power storage and discharge module (5); -said load/output (2) is adapted to receive electrical energy from at least one of said main power module (1) or said auxiliary storage and discharge module (5), a storage and discharge unit (12) in said auxiliary storage and discharge module (5) being adapted to store said surplus electrical energy or to discharge electrical energy stored in said storage and discharge unit (12);
the main power supply monitoring module (3) is respectively connected with the main power supply module (1) and the transformer substation integrated management module (7) in a data communication manner; the load monitoring module (4) is respectively connected with the load/output end (2) and the transformer substation integrated management module (7) in a data communication manner; the auxiliary storage and discharge detection module (6) is respectively connected with the auxiliary storage and discharge module (5) and the transformer substation integrated management module (7) in a data communication manner;
the alarm unit (8) is also connected with the transformer substation integrated management module (7) in a data communication manner and is used for alarming when receiving that the transformer substation is abnormal or the load is not matched with the power supply;
the method is characterized in that: when the intelligent substation monitoring and early warning system operates, the main power supply monitoring module (3) and the load monitoring module (4) respectively monitor the power supply power P of the main power supply module (1) supply And the required power P of the load/output terminal (2) load And send to the integrated management module (7) of said substation;
when the power supply P supply Greater than the required power P load When all charging tasks are not completed by the auxiliary storage and discharge module (5), the substation integrated management module (7) controls the main power supply module (1) to supply power to the load/output end (2) and the auxiliary storage and discharge module (5) respectively;
when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module (5) completes all charging tasks, the substation integrated management module (7) controls the main power supply module (1) to reduce the power supply power P supply ；
When the power supply P supply Less than the required power P load When the auxiliary storage and discharge module (5) has electric energy and can output the electric energy, the transformer substation integrated management module (7) controls the main power supply module (1) and the auxiliary storage and discharge module (5) to jointly supply power to the load/output end (2);
when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module (5) is provided with electric energy output, but the power supply P supply And the power P of the auxiliary power storage and discharge module (5) asupply The sum is still smaller than P load The integrated management module (7) of the transformer substation controls the reduction of the load demand power to the power supply power P supply And the power P of the auxiliary power storage and discharge module (5) asupply The sum is below;
when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module (5) does not have electric energy output, the transformer substation integrated management module (7) controls and reduces the load demand power to the power supply power P supply The following are set forth;
the load/output end (2) comprises a plurality of load modules, the load modules are connected to a power supply output end formed by the auxiliary storage and discharge modules (5) of the main power supply module (1) through load selection switches (10), the load selection switches (10) are used for controlling whether the load modules are communicated or not, and accordingly the connection and disconnection of the load modules are controlled, the load and the power supply are matched, and overload phenomenon does not occur; and displaying the disconnected load module through the display module (13);
the substation integrated management module (7) also counts the electric energy peak value of the main power supply module (1) and the auxiliary electricity storage and discharge module (5) and an electricity utilization period T accumulated value, and when the accumulated value is satisfied with P supply *T>P load *T,P supply +P asupply >P load The auxiliary storage and discharge module (5) is added without adding a power supply station or auxiliary power supply;
the display module (13) displays a structural schematic diagram of the main power supply module (1), the load/output end (2), the main power supply monitoring module (3), the load monitoring module (4), the auxiliary electricity storage and discharge module (5), the auxiliary electricity storage and discharge detection module (6), the transformer substation integrated management module (7) and the alarm unit (8), adopts a communication connection relation of connecting the modules by thin wires in the schematic diagram, and when the communication connection of the two modules is good, the thin wires between the two modules are marked by green wires, when the communication of the two modules is disconnected, the gray thin wires are used for connection, and when the communication connection of the two modules has faults, the red thin wires are used for connection; meanwhile, the running state of each module is displayed;
the data analysis module (14) counts the power supply power P of the main power supply module at a certain time T supply *T>P Load * T, but for a certain period of time T P supply +P asupply <p Laod Description is made of the auxiliary storage and discharge module (5)The capacity is too small and the capacity of the auxiliary storage and discharge module (5) needs to be increased.
2. The intelligent substation monitoring and early warning system based on the internet of things technology according to claim 1, wherein: the transformer substation integrated management module (7) comprises a data analysis module (14), wherein the data analysis module (14) is used for respectively counting the power supply and the discharge of the main power supply module (1), the load/output end (2) and the auxiliary storage and discharge module (5), and when a certain load power is exceeded to be larger than the power supply power in a counting period, the main power supply is increased, otherwise, the main power supply is reduced.
3. The intelligent substation monitoring and early warning system based on the internet of things technology according to claim 1, wherein: the load modules are prioritized such that when all of the load modules occur at a power greater than the power supply power P supply And P asupply When the sum is over, the load devices with the lowest priority are disconnected firstly, and when the power of all the load modules is still larger than the power supply power P supply And P asupply And when the sum is over, disconnecting the load module with the lowest priority in all the rest load modules (2) again.
4. The intelligent substation monitoring and early warning system based on the internet of things technology according to claim 1, wherein: the priority level of the load module is numbered, the priority of the accessed load module is set through the load selection switch (10), and when the power supply power P is supply And the power P of the auxiliary power storage and discharge module (5) asupply The sum is still smaller than P load And the substation integrated management module (7) controls the load modules with low priority levels to be disconnected preferentially.
5. An application method of an intelligent substation monitoring and early warning system based on the internet of things technology, comprising the intelligent substation monitoring and early warning system based on the internet of things technology as set forth in any one of claims 1-4, wherein the application method is as follows:
step S1, when the intelligent substation monitoring and early warning system operates, the main power supply monitoring module (3) and the load monitoring module (4) monitor the power supply power P of the main power supply module (1) respectively supply And the required power P of the load/output terminal (2) load And send to the integrated management module (7) of said substation;
step S2, when the power supply P supply Greater than the required power P load When all charging tasks are not completed by the auxiliary storage and discharge module (5), the substation integrated management module (7) controls the main power supply module (1) to supply power to the load/output end (2) and the auxiliary storage and discharge module (5) respectively;
step S3, when the power supply P supply Greater than the required power P load When the auxiliary storage and discharge module (5) completes all charging tasks, the substation integrated management module (7) controls the main power supply module (1) to reduce the power supply power P supply ；
Step S4, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module (5) has electric energy and can output the electric energy, the transformer substation integrated management module (7) controls the main power supply module (1) and the auxiliary storage and discharge module (5) to jointly supply power to the load/output end (2);
step S5, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module (5) is provided with electric energy output, but the power supply P supply And the power P of the auxiliary power storage and discharge module (5) asupply The sum is still smaller than P load The integrated management module (7) of the transformer substation controls the reduction of the load demand power to the power supply power P supply And the power P of the auxiliary power storage and discharge module (5) asupply The sum is below;
step S6, when the power supply P supply Less than the required power P load When the auxiliary storage and discharge module (5) does not have electric energy output, the transformer substation integrated management module (7) controls and reduces the load demand power to the power supply power P supply The following are set forth;
step S7, the data analysis module (14) counts the power supply power P of the main power supply module in a certain time T supply *T>P Load * T, but for a certain period of time T P supply +P asupply <p Laod Indicating that the capacity of the auxiliary storage and discharge module (5) is too small, and increasing the capacity of the auxiliary storage and discharge module (5) is needed;
step S8, numbering the priority level of the load module, setting the priority of the accessed load module through the load selection switch (10), and when the power supply power P is the same supply And the power P of the auxiliary power storage and discharge module (5) asupply The sum is still smaller than P load The substation integrated management module (7) controls the load module with low priority to be disconnected preferentially;
step S9, the transformer substation integrated management module (7) also counts the electric energy peak values of the main power supply module (1) and the auxiliary storage and discharge module (5) and an electricity utilization period T accumulated value, and when the accumulated value is met, if P is met supply *T>P load *T,P supply +P asupply >P load The auxiliary storage and discharge module (5) is added without adding a power supply station or auxiliary power supply;
and step S10, the alarm unit (8) is also connected with the integrated management module (7) of the transformer substation in a data communication manner and is used for alarming when receiving that the transformer substation is abnormal or the load and the power supply are not matched.
6. The application of the intelligent substation monitoring and early warning system based on the internet of things technology as set forth in claim 5, wherein: the transformer substation integrated management module (7) comprises a data analysis module (14), wherein the data analysis module (14) is used for respectively counting the power supply and the discharge of the main power supply module (1), the load/output end (2) and the auxiliary storage and discharge module (5), and when a certain load power is exceeded to be larger than the power supply power in a counting period, the main power supply is increased, otherwise, the main power supply is reduced.
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CN111628516A (en) * 2020-07-01 2020-09-04 广州城市用电服务有限公司 Low-voltage transformer area load adjusting system and method
CN113554352A (en) * 2021-08-24 2021-10-26 国网江苏省电力有限公司 Regional power grid electric energy distribution and scheduling system and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102835001A (en) * 2010-01-05 2012-12-19 Abb技术有限公司 A method and a system for power management in substations
KR20140076771A (en) * 2012-12-13 2014-06-23 주식회사 비쥬드림 Energy remote control system based energy consumption predicting
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