CN111327477A - Substation area control protection method and system based on edge calculation - Google Patents
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Abstract
The invention provides a substation area control protection method and a substation area control protection system based on edge calculation. According to the method and the system, an edge computing platform is arranged on a transformer substation side, messages transmitted by a transformer substation message interface are captured and analyzed through the edge computing platform, data transmitted by a power grid dispatching platform are received through a telecontrol host of a transformer substation integrated automation system, edge computing is carried out, stability of a transformer substation area is determined, control measure quantitative computing and control strategy formulation are carried out when a transformer substation breaks down, and control measure quantitative computing results and the formulated control strategy are transmitted to a power grid dispatching center to realize control over the transformer substation. According to the method and the system, the edge computing platform is arranged on the side of the transformer substation, so that the message of the transformer substation can be directly sent to the edge computing platform by utilizing Ethernet communication, the edge computing platform analyzes and stores the message, partial information is processed on site, and risks such as channel blockage and network packet loss can be effectively relieved.
Description
Technical Field
The present invention relates to the field of power system operation and control technologies, and in particular, to a method and a system for controlling and protecting a substation area based on edge computing.
Background
The transformer substation is an important node in a power grid and has the functions of converting voltage grades, collecting current, distributing electric energy, controlling electric energy flow direction and adjusting voltage. The digital substation can obtain electric energy and power grid information besides the functions of converting voltage, receiving and distributing electric energy and the like, provides required data for the operation of a power grid, and is structurally composed of a process layer, a spacer layer, a station control layer, a process layer network and a station control layer network. The number of secondary devices such as lines, switch breakers and the like to be monitored by a transformer substation is large, wherein the merging unit is composed of electronic transformers in the lines and is used for uploading the electric quantity of the lines; the intelligent terminal uploads the switch state quantity controlled by the intelligent terminal, and the electric quantity and the switch state quantity are transmitted to the spacer layer from the process layer in a message form; the spacing layer performs line stability control and relay protection actions according to the received data and uploads protection and control information to the station control layer in a message form; and the telecontrol host of the station control layer uploads the report to the dispatching center to wait for the analysis result and the task of the dispatching center to be issued.
However, both the substation area protection and the line protection of the transformer substation have extremely low delay requirements, and the influence caused by factors such as message analysis, communication blockage, network packet loss and the like will bring harm and hidden danger to the operation of the power grid.
Disclosure of Invention
In order to solve the problem that the transformer substation integrated automation system in the prior art has risks such as message analysis, communication blockage, network packet loss and the like and cannot meet the extremely low delay requirement in transformer substation domain protection and line protection, the invention provides a transformer substation domain control protection method based on edge calculation, which comprises the following steps:
the method comprises the steps that a transformer substation side edge computing platform receives a message containing the same-level power grid information of a transformer substation from a transformer substation integrated automation system station control layer message interface and performs data processing on the message;
the method comprises the following steps that an edge computing platform receives data transmitted by a power grid dispatching platform from a substation control layer telemechanical host of a transformer substation integrated automation system, and processes the data transmitted by the power grid dispatching platform;
the method comprises the steps that an edge computing platform carries out computation according to information obtained by processing messages and data transmitted by a power grid dispatching platform, the stability of a substation area is determined, and when a transformer substation breaks down, the edge computing platform carries out quantitative computation of control measures and formulation of a control strategy;
and the edge computing platform transmits the control measure quantitative computing result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the transformer substation integrated automation system for controlling the transformer substation.
Further, the edge computing platform receives a message containing the same-level power grid information of the transformer substation from a substation control layer message interface of the transformer substation integrated automation system, and performs data processing on the message, including:
the method comprises the steps that an edge computing platform monitors messages of a message interface of the comprehensive automation system of the transformer substation, and receives messages containing information of a power grid at the same level of the transformer substation from a message interface of a station control layer of the comprehensive automation system of the transformer substation;
the edge computing platform analyzes, filters and converts the received message;
and the edge computing platform stores the information after the message conversion.
Further, the edge computing platform receives data transmitted by the power grid dispatching platform from a substation control layer telemechanical host of the substation integrated automation system, and the processing of the data transmitted by the power grid dispatching platform comprises:
the method comprises the steps that an edge computing platform monitors data of a telecontrol host of a comprehensive automation system of the transformer substation, and receives first data transmitted by a power grid dispatching platform from the telecontrol host of a station control layer of the comprehensive automation system of the transformer substation, wherein the first data comprises system equivalent data, analysis task data, program model updating data, computing model updating data and platform maintenance data;
the edge computing platform performs data conversion on the system equivalent data and the analysis task data to generate second data; managing an edge computing platform according to the platform maintenance data, generating third data, and feeding the third data back to a power grid dispatching platform through a telecontrol host; updating the program model and the calculation model of the continuous calculation platform according to the program model updating data and the calculation model updating data to obtain an updated program model and an updated calculation model;
the edge computing platform stores the second data and the third data.
Further, the edge computing platform performs computation according to information obtained by processing the messages and data transmitted by the power grid dispatching platform, and determines the stability of the substation domain, and when the substation fails, the edge computing platform performs quantitative computation of control measures and formulation of a control strategy, wherein the step of performing quantitative computation of the control measures and the step of performing the control strategy comprises the following steps:
the edge computing platform extracts key features from multi-source information obtained by processing the messages based on the updated program model and the updated computing model, and calculates the key features by combining electric quantity information and switching value information obtained by processing the messages and third data to determine the stability of the substation domain of the transformer substation;
and when the transformer substation is determined to have a fault, the edge computing platform quantifies control measures and makes a control strategy according to the key characteristics and the third data.
Further, the edge computing platform transmits the control measure quantitative computing result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the substation integrated automation system through the special communication port so as to control the substation.
According to another aspect of the present invention, the present invention provides an edge computing-based substation domain control protection system, which includes a power grid dispatching platform, a substation integrated automation system, and an edge computing platform, wherein the edge computing platform includes:
the first processing unit is used for receiving a message containing the same-level power grid information of the transformer substation from a station control layer message interface of the transformer substation integrated automation system and processing data of the message;
the second processing unit is used for receiving data transmitted by the power grid dispatching platform from a substation control layer telecontrol host of the transformer substation integrated automation system and processing the data transmitted by the power grid dispatching platform;
the edge calculation unit is used for calculating according to information obtained after the first processing unit and the second processing unit perform data processing, determining the stability of a substation area, and performing quantitative calculation of control measures and formulation of a control strategy when a substation fails;
and the result output unit is used for transmitting the control measure quantitative calculation result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the substation integrated automation system so as to control the substation.
Further, the system also comprises a storage unit which is used for storing the information obtained after the data processing is carried out by the first processing unit and the second processing unit.
Further, the receiving, by the first processing unit, a message including information on a peer-level power grid of a substation from a substation control layer message interface of the integrated automation system of the substation, and performing data processing on the message includes:
monitoring messages of a message interface of the comprehensive automation system of the transformer substation, and receiving messages containing power grid information of the same level of the transformer substation from a message interface of a station control layer of the comprehensive automation system of the transformer substation, wherein the messages contain station domain data and adjacent station data, and the data comprise multi-source information, electric quantity information and switching value information;
and carrying out message analysis, message filtering and message conversion on the received message.
Further, the second processing unit receives data transmitted by the power grid dispatching platform from a substation control layer telemechanical host of the substation integrated automation system, and the processing of the data transmitted by the power grid dispatching platform includes:
monitoring data of a telecontrol host of the transformer substation integrated automation system, and receiving first data transmitted by a power grid dispatching platform from the telecontrol host of a station control layer of the transformer substation integrated automation system, wherein the first data comprises system equivalent data, analysis task data, program model updating data, calculation model updating data and platform maintenance data;
and processing the received first data, wherein system equivalent data and analysis task data are subjected to data conversion to generate second data, an edge computing platform is managed according to the platform maintenance data, third data are generated and fed back to the power grid dispatching platform through the telecontrol host, and a program model and a calculation model of the continuous computing platform are updated according to the program model update data and the calculation model update data to obtain an updated program model and a calculated model.
Further, the edge calculation unit calculates according to information obtained after the first processing unit and the second processing unit perform data processing, determines the stability of the substation domain of the transformer substation, and performs control measure quantitative calculation and control strategy formulation when the transformer substation fails, including:
extracting key features from multi-source information obtained by processing the messages based on the updated program model and the updated calculation model, and calculating by combining electric quantity information and switching value information obtained by processing the messages and third data to determine the stability of the substation domain of the transformer substation;
and when the transformer substation is determined to have faults, control measure quantification and control strategy formulation are carried out according to the key characteristics and the third data.
According to the method and the system for controlling and protecting the substation domain based on the edge calculation, which are provided by the technical scheme of the invention, the edge calculation platform is arranged on the side of the substation, messages transmitted by a message interface of the substation are captured and analyzed through the edge calculation platform, data transmitted by a power grid dispatching platform are received through a telecontrol host of a comprehensive automation system of the substation, the edge calculation is carried out, the stability of the substation domain of the substation is determined, the quantitative calculation of control measures and the formulation of control strategies are carried out when the substation breaks down, and the quantitative calculation results of the control measures and the formulated control strategies are transmitted to a power grid dispatching center to realize the control of the substation. According to the transformer substation domain control protection method and system based on edge computing, the edge computing platform is arranged on the side of the transformer substation, so that messages of the transformer substation can be directly sent to the edge computing platform by utilizing Ethernet communication, the edge computing platform analyzes and stores the messages, and partial information is processed on site, so that risks such as channel blockage and network packet loss can be effectively relieved, and the burden on telecontrol communication is reduced on the premise of ensuring the application service quality; the edge calculation can utilize data after message analysis transmitted by the transformer substation to carry out transformer substation domain parallel simulation, and carry out deduction and reverse deduction on future working conditions of the transformer substation; the edge calculation can carry out rapid protection control on the substation domain of the transformer substation by analyzing the message containing the substation domain data and utilizing intelligent algorithms such as deep learning and reinforcement learning to carry out key feature extraction, stability judgment, control strategy making and the like on the transformer substation.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
fig. 1 is a flowchart of a substation domain control protection method based on edge computing according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of a substation domain control protection system based on edge computing according to a preferred embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a flowchart of a substation domain control protection method based on edge computing according to a preferred embodiment of the present invention. As shown in fig. 1, a substation domain control protection method 100 based on edge calculation according to the preferred embodiment starts from step 101.
In step 101, a side edge computing platform of a transformer substation receives a message containing power grid information of the same level of the transformer substation from a station control layer message interface of a transformer substation integrated automation system, and performs data processing on the message. In this embodiment, a digital substation carrying technologies such as an electronic transformer, an intelligent switch, and high-speed network communication is used as an edge computing node of a power grid, an edge computing platform is deployed at a station control layer of an integrated automation system of the substation, and an MMS message including information of the power grid at the same level of the substation is acquired from an MMS message interface at the station control layer of the integrated automation system of the substation.
In step 102, the edge computing platform receives data transmitted by the power grid dispatching platform from a substation control layer telemechanical host of the transformer substation integrated automation system, and processes the data transmitted by the power grid dispatching platform.
In step 103, the edge computing platform performs computation according to the information obtained by processing the messages and the data transmitted by the power grid dispatching platform, determines the stability of the substation area, and performs quantitative computation of control measures and formulation of a control strategy when the substation fails. Intelligent algorithms and models such as deep learning, neural summation and reinforcement learning are arranged in the edge computing platform and are updated according to information issued by the power grid dispatching platform.
In step 104, the edge computing platform transmits the control measure quantitative computing result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the substation integrated automation system for controlling the substation.
Preferably, the receiving, by the edge computing platform, a message including information on a peer-level power grid of a substation from a substation control layer message interface of the integrated automation system of the substation, and performing data processing on the message includes:
the method comprises the steps that an edge computing platform monitors messages of a message interface of a comprehensive automation system of the transformer substation and receives messages containing power grid information of the same level of the transformer substation from a message interface of a station control layer of the comprehensive automation system of the transformer substation, wherein the messages contain station domain data and adjacent station data, and the data comprise multi-source information, electric quantity information and switching quantity information;
the edge computing platform analyzes, filters and converts the received message;
and the edge computing platform stores the information after the message conversion.
Preferably, the receiving, by the edge computing platform, data transmitted by the power grid dispatching platform from the substation control layer telemechanical host of the substation integrated automation system, and processing the data transmitted by the power grid dispatching platform includes:
the method comprises the steps that an edge computing platform monitors data of a telecontrol host of a comprehensive automation system of the transformer substation, and receives first data transmitted by a power grid dispatching platform from the telecontrol host of a station control layer of the comprehensive automation system of the transformer substation, wherein the first data comprises system equivalent data, analysis task data, program model updating data, computing model updating data and platform maintenance data;
the edge computing platform processes the received first data, performs data conversion on system equivalent data and analysis task data to generate second data, manages the edge computing platform according to the platform maintenance data, generates third data, feeds the third data back to the power grid dispatching platform through the telemechanical host, and updates a program model and a computing model of the continuous computing platform according to the program model updating data and the computing model updating data to obtain an updated program model and an updated computing model;
the edge computing platform will store the second data and the third data.
Preferably, the edge computing platform performs computation according to information obtained by processing the message and data transmitted by the power grid dispatching platform, and determines the stability of the substation domain, and when the substation fails, the edge computing platform performs quantitative computation of control measures and formulation of a control strategy, including:
the edge computing platform extracts key features from multi-source information obtained by processing the messages based on the updated program model and the updated computing model, and calculates the key features by combining electric quantity information and switching value information obtained by processing the messages and third data to determine the stability of the substation domain of the transformer substation;
and when the transformer substation is determined to have a fault, the edge computing platform quantifies control measures and makes a control strategy according to the key characteristics and the third data.
Preferably, the edge computing platform transmits the control measure quantitative calculation result and the formulated control strategy to the power grid dispatching platform through a dedicated communication port through a substation control layer telemechanical host of the substation integrated automation system for controlling the substation.
Fig. 2 is a schematic structural diagram of a substation domain control protection system based on edge computing according to a preferred embodiment of the present invention. As shown in fig. 2, the substation domain control protection system 200 based on edge computing according to the present preferred embodiment includes a power grid dispatching platform 201, a substation integrated automation system 202, and an edge computing platform 203, where the edge computing platform 203 includes:
the first processing unit 231 is configured to receive a message including information of a peer-level power grid of a substation from the substation integrated automation system station control layer message interface 221, and perform data processing on the message;
the second processing unit 232 is configured to receive data transmitted by the power grid dispatching platform from the substation control layer telemechanical host 222 of the substation integrated automation system, and process the data transmitted by the power grid dispatching platform;
a storage unit 233 for storing information obtained by the first processing unit and the second processing unit after data processing;
the edge calculation unit 234 is used for calculating according to information obtained after data processing is performed by the first processing unit and the second processing unit, determining the stability of the substation area, and performing quantitative calculation of control measures and formulation of control strategies when the substation fails;
and the result output unit 235 is used for transmitting the control measure quantitative calculation result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host 222 of the substation integrated automation system for controlling the substation. The result output unit 235 transmits the control measure quantitative calculation result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the substation integrated automation system through the special communication port so as to control the substation.
Preferably, the first processing unit 231 includes:
the message monitoring unit 2311 is used for monitoring messages of a message interface of the integrated automation system of the transformer substation and receiving messages containing power grid information of the same level of the transformer substation from a message interface of a station control layer of the integrated automation system of the transformer substation, wherein the messages contain station domain data and adjacent station data, and the data comprise multi-source information, electric quantity information and switching quantity information;
a message processing unit 2312, configured to perform message parsing, message filtering, and message conversion on the received message.
Preferably, the second processing unit 232 includes:
the data monitoring unit 2321 is configured to monitor data of a telecontrol host of the integrated automation system of the transformer substation, and receive first data transmitted by a power grid scheduling platform from the telecontrol host of a station control layer of the integrated automation system of the transformer substation, where the first data includes system equivalent data, analysis task data, program model update data, calculation model update data, and platform maintenance data;
the data processing unit 2322 is used for performing data conversion on the system equivalent data and the analysis task data to generate second data; managing an edge computing platform according to the platform maintenance data, generating third data, and feeding the third data back to a power grid dispatching platform through a telecontrol host; and updating the program model and the calculation model of the continuous calculation platform according to the program model updating data and the calculation model updating data to obtain the updated program model and calculation model.
Preferably, the edge calculation unit 234 performs calculation according to information obtained after the data processing is performed by the first processing unit 231 and the second processing unit 232, determines the stability of the substation domain, and performs quantitative calculation of control measures and formulation of a control strategy when the substation fails, including:
extracting key features from multi-source information obtained by processing the messages based on the updated program model and the updated calculation model, and calculating by combining electric quantity information and switching value information obtained by processing the messages and third data to determine the stability of the substation domain of the transformer substation;
and when the transformer substation is determined to have a fault, the edge computing platform quantifies control measures and makes a control strategy according to the key characteristics and the third data.
The method for carrying out substation area protection on the transformer substation by the substation area control protection system based on the edge calculation has the same steps and achieves the same technical effects as the substation area control protection method based on the edge calculation, and is not repeated herein.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A substation area control protection method based on edge calculation is characterized by comprising the following steps:
the method comprises the steps that a transformer substation side edge computing platform receives a message containing the same-level power grid information of a transformer substation from a transformer substation integrated automation system station control layer message interface and performs data processing on the message;
the method comprises the following steps that an edge computing platform receives data transmitted by a power grid dispatching platform from a substation control layer telemechanical host of a transformer substation integrated automation system, and processes the data transmitted by the power grid dispatching platform;
the method comprises the steps that an edge computing platform carries out computation according to information obtained by processing messages and data transmitted by a power grid dispatching platform, the stability of a substation area is determined, and when a transformer substation breaks down, the edge computing platform carries out quantitative computation of control measures and formulation of a control strategy;
and the edge computing platform transmits the control measure quantitative computing result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the transformer substation integrated automation system for controlling the transformer substation.
2. The method of claim 1, wherein the edge computing platform receives messages containing substation peer grid information from a substation integrated automation system station layer message interface, and the data processing of the messages comprises:
the method comprises the steps that an edge computing platform monitors messages of a message interface of a comprehensive automation system of the transformer substation and receives messages containing power grid information of the same level of the transformer substation from a message interface of a station control layer of the comprehensive automation system of the transformer substation, wherein the messages contain station domain data and adjacent station data, and the data comprise multi-source information, electric quantity information and switching quantity information;
the edge computing platform analyzes, filters and converts the received message;
and the edge computing platform stores the information after the message conversion.
3. The method of claim 2, wherein the edge computing platform receives data transmitted by a power grid dispatching platform from a substation integrated automation system station level telecontrol host, and processing the data transmitted by the power grid dispatching platform comprises:
the method comprises the steps that an edge computing platform monitors data of a telecontrol host of a comprehensive automation system of the transformer substation, and receives first data transmitted by a power grid dispatching platform from the telecontrol host of a station control layer of the comprehensive automation system of the transformer substation, wherein the first data comprises system equivalent data, analysis task data, program model updating data, computing model updating data and platform maintenance data;
the edge computing platform performs data conversion on the system equivalent data and the analysis task data to generate second data; managing an edge computing platform according to the platform maintenance data, generating third data, and feeding the third data back to a power grid dispatching platform through a telecontrol host; updating the program model and the calculation model of the continuous calculation platform according to the program model updating data and the calculation model updating data to obtain an updated program model and an updated calculation model;
the edge computing platform stores the second data and the third data.
4. The method according to claim 3, wherein the edge computing platform performs computation according to information obtained by processing messages and data transmitted by the power grid dispatching platform to determine the stability of the substation domain, and when the substation fails, the edge computing platform performs quantitative computation of control measures and formulation of a control strategy, including:
the edge computing platform extracts key features from multi-source information obtained by processing the messages based on the updated program model and the updated computing model, and calculates the key features by combining electric quantity information and switching value information obtained by processing the messages and third data to determine the stability of the substation domain of the transformer substation;
and when the transformer substation is determined to have a fault, the edge computing platform quantifies control measures and makes a control strategy according to the key characteristics and the third data.
5. The method of claim 1, wherein the edge computing platform transmits the control measure quantitative calculation result and the formulated control strategy to the power grid dispatching platform through a dedicated communication port through a substation control layer telemechanical host of the substation integrated automation system for controlling the substation.
6. The utility model provides a transformer substation territory control protection system based on edge calculation, its includes electric wire netting dispatch platform, transformer substation integrated automation system and edge calculation platform, its characterized in that, the edge calculation platform includes:
the first processing unit is used for receiving a message containing the same-level power grid information of the transformer substation from a station control layer message interface of the transformer substation integrated automation system and processing data of the message;
the second processing unit is used for receiving data transmitted by the power grid dispatching platform from a substation control layer telecontrol host of the transformer substation integrated automation system and processing the data transmitted by the power grid dispatching platform;
the edge calculation unit is used for calculating according to information obtained after the first processing unit and the second processing unit perform data processing, determining the stability of a substation area, and performing quantitative calculation of control measures and formulation of a control strategy when a substation fails;
and the result output unit is used for transmitting the control measure quantitative calculation result and the formulated control strategy to the power grid dispatching platform through the substation control layer telemechanical host of the substation integrated automation system so as to control the substation.
7. The system of claim 6, further comprising a storage unit for storing information obtained after data processing by the first processing unit and the second processing unit.
8. The system of claim 6, wherein the first processing unit receives a message containing substation-level power grid information from a substation integrated automation system station control layer message interface, and performs data processing on the message comprises:
monitoring messages of a message interface of the comprehensive automation system of the transformer substation, and receiving messages containing power grid information of the same level of the transformer substation from a message interface of a station control layer of the comprehensive automation system of the transformer substation, wherein the messages contain station domain data and adjacent station data, and the data comprise multi-source information, electric quantity information and switching value information;
and carrying out message analysis, message filtering and message conversion on the received message.
9. The system of claim 8, wherein the second processing unit receives data transmitted by the grid dispatching platform from a substation integrated automation system station level telecontrol host, and the processing of the data transmitted by the grid dispatching platform comprises:
monitoring data of a telecontrol host of the transformer substation integrated automation system, and receiving first data transmitted by a power grid dispatching platform from the telecontrol host of a station control layer of the transformer substation integrated automation system, wherein the first data comprises system equivalent data, analysis task data, program model updating data, calculation model updating data and platform maintenance data;
performing data conversion on the system equivalent data and the analysis task data to generate second data; managing an edge computing platform according to the platform maintenance data, generating third data, and feeding the third data back to a power grid dispatching platform through a telecontrol host; and updating the program model and the calculation model of the continuous calculation platform according to the program model updating data and the calculation model updating data to obtain the updated program model and calculation model.
10. The system of claim 9, wherein the edge computing unit performs computation according to information obtained after data processing is performed by the first processing unit and the second processing unit, determines substation domain stability, and performs control measure quantitative computation and control strategy formulation when a substation fails, including:
extracting key features from multi-source information obtained by processing the messages based on the updated program model and the updated calculation model, and calculating by combining electric quantity information and switching value information obtained by processing the messages and third data to determine the stability of the substation domain of the transformer substation;
and when the transformer substation is determined to have faults, control measure quantification and control strategy formulation are carried out according to the key characteristics and the third data.
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