CN115242706B - Operation management method of electric power system information network simulation platform - Google Patents
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Abstract
The invention provides an operation management method of an electric power system information network simulation platform, and relates to the technical field of electric power system information network simulation platforms. Constructing an information network simulation platform of the electric power system; establishing an operation module mapping chart and a network module mapping chart; searching a part overlapped with the network module mapping image in the operation module mapping image through a mapping matrix transformation algorithm to construct an overlapped matrix; setting event relations corresponding to elements of the operation module mapping graph, which are the same as the network module mapping graph, in a set to construct an overlapping mapping graph; and storing and processing the result data of the overlapping mapping chart, generating an operation management signal, and transmitting the operation management signal to the plurality of network modules to adjust the operation state of the power equipment. The invention improves the control degree, expandability, maintainability and efficiency of the operation process of the whole power system information network simulation platform.
Description
Technical Field
The invention relates to the technical field of an electric power system information network simulation platform, in particular to an operation management method of an electric power system information network simulation platform.
Background
In recent years, due to the successive investment of business application systems, the number of application system servers is increasing, and corresponding network devices are also increasing, so that the area of a machine room is insufficient, the power consumption of the devices is increased, and the load of the machine room is also increased. The power system is a large nonlinear system with strong coupling, and the stable operation of the system is very important. From the aspect of a power grid structure, a three-layer multi-agent model of a power system is constructed, wherein the three-layer multi-agent model is respectively a control layer, a network transmission layer and an information layer. The control layer is composed of a series of synchronous motor dynamic nodes, a transient stability evaluation module is designed in the information layer, and the evaluation result is used as the basis for whether an information agent of the information layer transmits a remote control signal to the control layer or not, so that the switching of two-stage distributed coordination control sublayers is concerned; at the control layer, the complex nonlinear coupling terms in the model are processed innovatively through the expansion state according to the active disturbance rejection control idea.
Before the operation and maintenance means of the power system information network is used on site, the effect and performance of the operation and maintenance means are verified and tested in a simulation system of a laboratory, and after the operation and maintenance means are proved to be effective and reliable, the operation and maintenance means are applied to an actual safety monitoring system of a power dispatching center to play a role, and the phenomenon that the operation of an actual power grid is influenced due to the fact that an algorithm or software is immature and unreliable is avoided. For example, dynamic simulation, digital-analog hybrid simulation, RTDS real-time digital simulation, etc. cannot perform comprehensive tests on the operation and maintenance means of these power system information networks, especially cannot perform tests in large-scale simulation power grids that reflect the actual power grid operation characteristics, nor can perform comprehensive research and tests on new safety monitoring means such as on-line dynamic safety assessment, early warning and decision support systems of power systems.
In the prior art, for example, patent document CN114579457a discloses a novel power system firmware operation simulation platform, which includes: the firmware extraction module is used for acquiring a file system, an executable program and running environment information of equipment firmware in the power system; the firmware analysis module is used for positioning the firmware file system and analyzing the firmware executable program and the operating environment information; the simulation module is used for simulating an environment required by firmware operation; and the terminal management module is used for checking the processes and results of extraction, analysis and simulation of the firmware. However, this solution requires a large number of samples to satisfy the density, resulting in a long time period for generating the samples.
For another example, patent document CN105388783A discloses a power system operation and safety monitoring simulation system, which can perform power system safety operation simulation research in a power market environment; the method can be used for experimental research and software test of the safety and stability monitoring technology of the large interconnected power grid, such as dynamic safety analysis and evaluation of the ultra/extra-high voltage large power grid, WAMS-based power system dynamic regulation and control technology, dynamic safety analysis and evaluation technology under the power market condition and other new technology experimental research and test of newly developed software and the like. However, the technical scheme is not mature enough, not reliable enough, and the simulation operation effect is poor.
In order to provide reliable guarantee and technical support for information security, network security and system security of the power system in the face of such contradictions, an operation management method for an information network simulation platform of the power system is urgently needed.
Disclosure of Invention
In order to solve the technical problem, the invention provides an operation management method of an electric power system information network simulation platform, which comprises the following steps:
s1, constructing an information network simulation platform of the power system;
s2, analyzing communication data among operation modules in the power system information network simulation platform in real time, establishing a mapping relation among the operation modules, and establishing a mapping chart of the operation modules;
s3, analyzing the topological structure of each network module in the power system information network simulation platform, establishing a mapping relation in each network module, and generating a mapping chart of each network module;
s4, searching a part overlapped with the network module mapping image in the operation module mapping image through a mapping matrix transformation algorithm, and constructing an overlapped matrix;
s5, placing event relations corresponding to the same elements of the operation module mapping graph and the network module mapping graph in a set K f Constructing an overlapping map;
and S6, storing and processing the result data of the overlapped mapping chart, generating an operation management signal, and transmitting the operation management signal to the plurality of network modules to adjust the operation state of the power equipment.
Further, the step S4 includes the steps of:
let the operation module map be G = (V) 1 ,E 1 ) Network module map H = (V) 2 ,E 2 ) Judging whether the two mapping graphs are overlapped or not;
let two maps G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) The node formation matrices are respectively
And
let nodes form a matrix A G And A H The Boolean matrix of the correction matrix is Y and the correction matrix is T;
solving for each element in the Boolean matrix Y according to equation (1)
：
Solving each element of T in the correction matrix according to the formula (2)
：
Finding whether at least one identical element exists in the node composition matrix of the two mapping graphs, and constructing an overlapping matrix Gf:
further, in the step S5, the matrix G is overlapped f The corresponding network mode matrix is
Set of K f The corresponding event relation matrix is
；
Map G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) Of overlapping elements
Corresponding event relationships are assigned to the overlap matrix G f Defining an overlay map P:
wherein,
to represent
Transpose of (V) f And E f Is the node and edge of the overlay map P.
Further, in step S6, for the overlay map P having m edges and n nodes, the mapping matrix S is used to represent the topological connection relationship of the overlay map P, which is defined as:
further, in step S6, a fuzzy algorithm is used to introduce confidence attributes to elements in the mapping matrix, so as to infer the operation condition probabilities of each network module and each operation module.
Further, each element in the mapping matrix is given a real number between [0,1] as a confidence value, each event transition is given a transition degree CF to represent the possible occurrence probability, and the fuzzy inference process is represented by the trigger of the transition in the overlapping mapping graph.
Further, in step S1, the power system information network simulation platform includes: the system comprises a cloud platform, a plurality of operation modules, a plurality of network modules, an electric power simulation processing unit, a storage unit and a controller;
the cloud platform receives the power equipment operation data information transmitted by the network modules and the data information processed by the operation modules in real time, caches and integrates the data information, and transmits the information after the cache and integration processing to the power simulation processing unit;
the electric power simulation processing unit transmits a simulation processing result to the controller through the communication interface, integrates and screens the simulation processing result, and stores the simulation processing result to the storage unit;
the controller transmits the operation management signals to the plurality of network modules, and adjusts and controls the operation condition of the power equipment.
Further, the cloud platform receives the information transmitted by the plurality of operation modules and the network module through an MQTT transmission protocol.
Further, the electric power simulation processing unit calls a Java packet through an MQTT protocol to store simulation processing result information in the storage unit.
Further, the network module includes power equipment sensor and temperature sensor, power equipment sensor collects power equipment operation condition information, temperature sensor collects the real-time environment temperature information and the instrument operating temperature information that power equipment is located.
Compared with the prior art, the invention has the following advantages and beneficial effects:
analyzing communication data among operation modules in an information network simulation platform of the power system in real time, establishing a mapping relation among the operation modules, and establishing a mapping chart of the operation modules; analyzing the topological structure of each network module in the power system information network simulation platform, establishing the mapping relation in each network module, generating each network module mapping map, and searching the part overlapped with each network module mapping map in each operation module mapping map through a mapping matrix transformation algorithm. According to the topological structure of the existing power grid, automatic modeling of common faults can be realized, manual modeling and maintenance work of a large number of faults of personnel caused by changes of the topological structure and the operation mode of the power grid is avoided, and the automation level of stability analysis of the power system is improved.
The invention can realize accurate simulation of action behaviors and control characteristics of various different safety and stability control systems in a large-scale power system, overcomes the defect that the traditional simulation software cannot reflect the action behaviors of the safety and stability control, can perform posterior analysis of complex and serious accidents, and improves the control degree, expandability, maintainability and efficiency of the operation process of the whole power system information network simulation platform.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for managing the operation of an information network simulation platform of an electrical power system according to the present invention;
fig. 2 is a schematic structural diagram of an information network simulation platform of an electric power system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the drawings of the embodiments of the present invention, in order to better and more clearly describe the working principle of each element in the system, the connection relationship of each part in the apparatus is shown, only the relative position relationship between each element is clearly distinguished, and the restriction on the signal transmission direction, the connection sequence, and the size, the dimension, and the shape of each part structure in the element or structure cannot be formed.
Fig. 1 is a flowchart of an operation management method of an information network simulation platform of an electrical power system according to the present application, including the following steps:
s1, constructing an electric power system information network simulation platform.
And S2, analyzing communication data among the operation modules in the power system information network simulation platform in real time, and establishing an operation module mapping chart according to the mapping relation among the operation modules.
And S3, analyzing the topological structure of each network module in the power system information network simulation platform, and establishing a network module mapping chart according to the mapping relation in each network module.
The network module mapping map can reflect the states of all network modules in the electric power system information network simulation platform and the relationship among the network modules, is a link for carrying out structural analysis and numerical calculation, and directly influences the difficulty, expandability, maintainability and efficiency of the operation process of the whole electric power system information network simulation platform.
The good mapping chart can realize the quick tracking of the information network connectivity of the power system, adapt to the change of the environment, meet the requirements of advanced application functions of the power system and save the storage space.
And S4, searching a part overlapped with the network module mapping image in the operation module mapping image through a mapping matrix transformation algorithm, and constructing an overlapped matrix. The method is realized by the following steps:
let the operation module map be G = (V) 1 ,E 1 ) The network module map is H = (V) 2 ,E 2 ) And judging whether the two maps are overlapped, namely whether the two maps have the same composition mode from the topological graph structure of the vertexes and the edges of the maps.
Let two maps G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) The node formation matrix is A G And A H Let nodes form a matrix
,
。
Setting nodes to form a matrix A G And A H The Boolean matrix of (1) is Y and the correction matrix is T. Solving each element in the Boolean matrix Y according to the calculation formula (1)
：
Solving each element of T in the correction matrix according to the calculation formula (2)
：
Finding out whether at least one same element exists in the node forming matrix of the two mapping graphs, and forming an overlapping matrix G f ：
S5, placing event relations corresponding to the same elements of the operation module mapping graph and the network module mapping graph in a set K f And constructing an overlapping map.
Overlapping matrix G f The corresponding network mode matrix is
Set of K f The corresponding event relation matrix is
。
If G is f Are two maps G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) Of the two matrices, the map G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) The event relation of the overlapped elements is correspondingly assigned to the overlapped matrix G f . Each element satisfying the overlap condition
A G = (V) is determined 1 ,E 1 ) To H = (V) 2 ,E 2 ) Defines the overlap map P:
wherein
Presentation element
Transpose of (V) f And E f To overlap the nodes and edges of the map P.
S6, storing and processing result data of the overlapped mapping map P, generating an operation management signal, transmitting the operation management signal to the plurality of network modules, and adjusting the operation state of the power equipment by the plurality of network modules according to the operation management signal.
The index of the operation management signal is represented by an overlap map P, which is formed by a node V f And edge E f For an overlay map P having m edges and n nodes, the present embodiment adopts an m × n mapping matrix S to represent a topological connection relationship of the overlay map P, which is defined as:
and introducing a confidence attribute to the elements in the mapping matrix S by using a fuzzy algorithm so as to reason the operation condition probability of each network module and each operation module.
In the power communication network, the overlay mapping P presents a topological connection relation, and the fuzzy algorithm solves the difficult problem of network diagnosis in an intuitive expression mode and a matrix operation method.
Each element in the mapping matrix S is given a real number between [0,1] as its confidence value, and each transition is given a transition CF to represent its possible probability of occurrence, while the fuzzy inference process is represented by the triggering of transitions in the overlay map.
In a preferred embodiment, according to the acquired running condition information, according to historical statistical data and the degree of reflection of alarm information on the network fault of the electric power system information, higher confidence degrees can be respectively given to the action information of the stable network module and the operation module. Meanwhile, the possibility of protection refusal and information missing report is considered, and lower confidence degrees are respectively given to unstable network module and operation module action information.
And after the confidence coefficient is set according to the historical statistical data and the alarm information, filling the confidence coefficient into the corresponding elements in the mapping matrix S, so that the confidence coefficient fusion can be carried out to realize the probability inference of the fault of the power system information network.
As shown in fig. 2, which is a schematic structural diagram of the power system information network simulation platform of the present invention, the power system information network simulation platform constructed by the present invention includes: the cloud platform comprises a plurality of operation modules, a plurality of network modules, an electric power simulation processing unit, a storage unit and a controller.
The cloud platform receives the power equipment operation data information transmitted by the network module and the data information processed by the operation module in real time, caches and integrates the data information, and transmits the information after caching and integrating processing to the power simulation processing unit.
The power simulation processing unit is used as a server for data processing and system optimization, builds a power system optimization and simulation model, receives data information transmitted by the cloud platform, analyzes communication data among operation modules in the power system information network simulation platform in real time, establishes a mapping relation among the operation modules and establishes a mapping chart of the operation modules; analyzing the topological structure of each network module in the power system information network simulation platform, establishing the mapping relation in each network module, and generating each network moduleA group map; searching a part overlapped with the network module mapping image in the operation module mapping image through a mapping matrix transformation algorithm to generate an overlapped mapping image; placing event relations corresponding to the same elements in a set K f The controller transmits a management signal to the plurality of network modules, and the plurality of network modules regulate the control of the operating state of the power equipment. And meanwhile, integrating and screening simulation processing result information, and storing the simulation processing result information in a storage unit.
The network module receives the operation management signal transmitted by the power simulation processing unit through the communication interface, and adjusts and controls the operation condition of the power equipment.
In a preferred embodiment, the cloud platform receives information transmitted by the operation module and the network module through an MQTT transmission protocol.
The electric power simulation processing unit calls a Java packet through an MQTT protocol to store simulation processing result information in the storage unit.
In a preferred embodiment, the network module of the power system information network simulation platform further comprises a power equipment sensor and a temperature sensor. The power equipment sensor collects power equipment running condition information, and the temperature sensor collects real-time environment temperature condition information and instrument running temperature condition information of the power equipment. The power equipment sensor transmits information to the cloud platform through an MQTT protocol.
In a preferred embodiment, the controller comprises a switch controller and an operating state regulator, wherein the switch controller controls the on and off of the power equipment switch, and the operating state regulator regulates the operating state of the power equipment.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. An operation management method of an electric power system information network simulation platform is characterized by comprising the following steps:
s1, constructing an information network simulation platform of the power system;
s2, analyzing communication data among operation modules in the power system information network simulation platform in real time, and establishing an operation module mapping chart according to the mapping relation among the operation modules;
s3, analyzing the topological structure of each network module in the power system information network simulation platform, and establishing a network module mapping chart according to the mapping relation in each network module;
s4, searching a part overlapped with the network module mapping image in the operation module mapping image through a mapping matrix transformation algorithm, and constructing an overlapped matrix;
let the operation module map be G = (V) 1 ,E 1 ) Network module map H = (V) 2 ,E 2 ),
Let two maps G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) The node formation matrices are respectively
And
let nodes form a matrix A G And A H The Boolean matrix of the correction matrix is Y and the correction matrix is T;
solving for each element in the Boolean matrix Y according to equation (1)
：
Solving each element of T in the correction matrix according to the formula (2)
： 
(2) ；
Finding out whether at least one overlapping element exists in the node forming matrix of the two mapping graphs, and forming an overlapping matrix G f ：
S5, placing the event relation corresponding to the same element of the operation module mapping chart and the network module mapping chart in a set K f Constructing an overlapping map;
overlapping matrix G f The corresponding network mode matrix is
Set of K f The corresponding event relation matrix is
；
Map G = (V) 1 ,E 1 ) And H = (V) 2 ,E 2 ) Of overlapping elements
Corresponding event relationships are assigned to the overlap matrix G f Defining an overlay map
：
Wherein,
represent
Transpose of (V) f And E f Nodes and edges of the overlay map;
and S6, storing and processing the data of the overlapped mapping chart, generating an operation management signal, transmitting the operation management signal to each network module, and adjusting the operation state of the power equipment in each network module.
2. The operation management method according to claim 1, wherein in step S6, a mapping matrix is used
A topological connection relationship representing an overlay map, defined as:
3. the operation management method according to claim 1, wherein in step S6, a fuzzy algorithm is used to introduce confidence attribute values to elements in the mapping matrix, so as to represent the operation probability of each network module and each operation module.
4. The operation management method according to claim 3, wherein each element in the mapping matrix is given a real number between [0,1] as its confidence value, and each event relationship transition is given a transition degree to represent the probability of occurrence of the event relationship transition.
5. The operation management method according to claim 1, wherein in step S1, the power system information network simulation platform includes: the system comprises a cloud platform, a plurality of operation modules, a plurality of network modules, an electric power simulation processing unit, a storage unit and a controller;
the cloud platform receives the power equipment operation data information transmitted by the network modules and the data information processed by the operation modules in real time, caches and integrates the data information, and transmits the information after caching and integrating to the power simulation processing unit;
the power simulation processing unit transmits a simulation processing result to the controller through a communication interface and stores the simulation processing result in the storage unit;
the controller transmits operation management signals to the plurality of network modules, and adjusts and controls the operation condition of the power equipment.
6. The operation management method according to claim 5, wherein the cloud platform receives data information transmitted by the plurality of operation modules and the plurality of network modules through an MQTT transmission protocol.
7. The operation management method according to claim 5, wherein the power simulation processing unit calls a Java package through an MQTT protocol to store simulation processing result information in the storage unit.
8. The operation management method according to claim 5, wherein the plurality of network modules comprise a power equipment sensor and a temperature sensor, the power equipment sensor collects power equipment operation data, and the temperature sensor collects real-time environment temperature information and instrument operation temperature information of the power equipment.
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| CN110740169A (en) * | 2019-09-25 | 2020-01-31 | 杭州电子科技大学 | Data communication system and method for Matlab power simulation models and Internet of things equipment |
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| WO2022110435A1 (en) * | 2020-11-27 | 2022-06-02 | 中国电力科学研究院有限公司 | Method, system and device for constructing power service simulation environment, and storage medium |
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| WO2016101638A1 (en) * | 2014-12-23 | 2016-06-30 | 国家电网公司 | Operation management method for electric power system cloud simulation platform |
| CN110740169A (en) * | 2019-09-25 | 2020-01-31 | 杭州电子科技大学 | Data communication system and method for Matlab power simulation models and Internet of things equipment |
| CN112231305A (en) * | 2020-08-23 | 2021-01-15 | 山东翰林科技有限公司 | Digital power grid system and method based on digital twinning |
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