CN110471979B - Power grid information display simulation system based on multi-source simulation data aggregation and mining - Google Patents
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Abstract
The invention provides a power grid information display simulation system based on multi-source simulation data aggregation and mining, which aggregates power grid core service data, and is oriented to scheduling services such as power grid real-time scheduling control, scheduling plan, scheduling/monitoring personnel training, anti-accident drilling, system operation and maintenance and the like, so that a power grid safe operation simulation big data and knowledge management method is extracted, the aggregation and networking of various existing simulation systems and network training resources are realized, the maximization of various training resource sharing is realized, the dynamism of learning resource customization and the virtualization without time and space limitation are realized by taking a student as a center, the requirement of power grid advanced safety early warning in an energy Internet environment is met, and the safe, stable and economic operation of a power grid is ensured.
Description
Technical Field
The invention belongs to the technical field of power system simulation, and particularly relates to a power grid information display simulation technology based on multi-source simulation data aggregation and mining.
Background
With the rapid development of the internet industry in recent years, the convergence between "energy" and "internet" has been deepened, and an energy internet concept based on "the internet and other advanced information technologies with the electric power system as the core" has been developed. Similar to the internet, a large amount of data and a large amount of information are generated in the operation and management of an energy system, i.e., a power system. No matter the measured big data from the measuring system or the simulation calculation big data from the simulation calculation platform, the traditional data processing method of the power system cannot efficiently acquire information and refine knowledge from the data.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects in the prior art, the invention aims to gather the core service data of the power grid, and extract the simulation big data and knowledge management method of the safe operation of the power grid for the scheduling services of real-time scheduling control, scheduling plan, scheduling/monitoring personnel training, anti-accident drilling, system operation and maintenance and the like of the power grid, thereby realizing the aggregation and networking of various simulation systems and network training resources, realizing the maximization of the sharing of various training resources, realizing the dynamism of learning resource customization and the virtualization free from time and space limitation by taking a student as a center, meeting the requirement of the advanced safety early warning of the power grid in the energy Internet environment, and ensuring the safe, stable and economic operation of the power grid.
The technical scheme is as follows: the invention can adopt the following technical scheme:
a power grid information display simulation system based on multi-source simulation data aggregation and mining comprises:
the method comprises the steps of gathering and mining data based on multi-source simulation; the multi-source simulation data aggregation utilizes a Monte Carlo algorithm to form large data of the simulation power grid operation state, the limit transmission capacity of the key section under each simulation power grid operation state is calculated, and a fine rule for calculating the limit transmission capacity of the key section is obtained through a large data mining method; establishing a power grid operation state description considering non-electrical quantity factors by utilizing power grid operation big data; layering according to knowledge of whether the key section appears on the safe operation of the power grid; clustering the running states of the massive power grids by using a clustering analysis method to form different forms of fine rules, and establishing a power grid safe running knowledge base; matching the real-time power grid operation data with historical data in real time;
a universal visual simulation platform; developing a block-based elastic configuration modular window by using an Echarts open source frame and a front-end data visualization technology of HTML5canvas animation;
a simulation scene data source based on the application service; analyzing the instruction interaction between data input and output and application of each application in normal and abnormal states of the power grid by researching the operation requirements of the power grid primary system, the secondary system, network analysis, scheduling instructions, risk fault simulation, power grid monitoring, plan curves, load curves, plan instruction simulation, plan feasibility assessment and plan feasibility analysis applied to the power grid scheduling operation system, establishing a service data model and establishing a service instruction model;
an on-demand creation module for simulation scenarios based on application services; by receiving simulation scene creation information of a client, analyzing the dependency relationship of application services, reasonably arranging the creation sequence of different application services, calculating the resource environment required by scene operation, dynamically applying for operating resources from a resource management center, realizing that logic operation is performed in a unified simulation scene, and physical operation is distributed in a plurality of containers;
a dynamic management module based on the simulation scene of the application service; the algorithm logic of each application service in the simulation scene is derived from each practical application service of the scheduling system, the data and the instruction required by each service in the simulation scene are derived from the simulation engine, and the simulation engine dynamically manages the data interaction and the instruction interaction of the services;
the information of the multi-service simulation process elements is aggregated into a one-stop control module; the operation of simulation flow control, simulation service operation, scene creation, event query, simulation maintenance and multidimensional display of the services is completed on a designated interface by information integration and service centralized calling;
a power grid equipment scene inspection module; establishing a plurality of similar models for each object, wherein different models describe the object in different details; performing collision detection in a power grid scene by adopting a real-time collision detection algorithm based on a graph; the dynamic visual angle of the virtual human during tour in the power grid scene is calculated by adopting a visual range rendering algorithm, a visual model in a visual cone range is detected, dynamic rendering of the model is carried out, the geometric complexity of three-dimensional data is reduced on the premise of not influencing the visual effect through data visibility reduction, the number of graphs processed by a graph system in real time is reduced, and the graph display efficiency is improved;
a human-computer interaction operation module based on model picking; the ray pickup technology is adopted to realize three-dimensional man-machine interaction;
the synchronization module is used for monitoring the equipment state and the real-time information of the power grid; the synchronous interaction technology of the running state information and the fault state information of the power grid equipment and the real-time information of the power grid is researched, corresponding mathematical models and logical relations are established for the running mechanism and the mutual relations of all the equipment of the power grid, and corresponding equipment model actions, lighting of the light character plate and instrument numerical value refreshing are triggered according to the real-time information of the external power grid.
Has the advantages that: in the power grid information display simulation system based on multi-source simulation data aggregation and mining, power grid core service data are aggregated, a power grid real-time scheduling control, scheduling plan, scheduling/monitoring personnel training, anti-accident drilling, system operation and maintenance and other scheduling services are oriented, a power grid safe operation simulation big data and knowledge management method is extracted, aggregation and networking of various existing simulation systems and network training resources are realized, maximization of various training resource sharing is realized, dynamisation of learning resource customization and virtualization free from time and space limitation are realized by taking a student as a center, the requirement of power grid advanced safety early warning in an energy Internet environment is met, and safe, stable and economic operation of a power grid is guaranteed. The advantages of the simulation system include:
(1) the container and micro-service design is adopted, and the influence of a platform is small;
(2) the simulation scene is flexible to construct, a large scene is easy to construct, and a user can join the simulation scene quickly and conveniently;
(3) the method can be applied to full-service simulation, centralized operation and configuration interfaces and multi-dimensional user interaction;
(4) the regulation and control cloud platform is fully utilized, and the hardware cost is low.
Drawings
FIG. 1 is a schematic diagram of a power grid information presentation simulation system based on multi-source simulation data aggregation and mining in accordance with the present invention;
FIG. 2 is a schematic View of perspective projection View in View cone range, EYE is an observation point in a scene, fovy is a View angle in the y-axis direction, zNear is a vertical distance from an EYE to a near plane, zFar is a vertical distance from an EYE to a far plane, width is a width of a visible range, height is a height of the visible range, and View front is a Frustum formed by the visible range;
fig. 3 is a schematic diagram of a primary device hierarchical modeling.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the power grid information display simulation system based on multi-source simulation data aggregation and mining provided by the present invention includes the following components.
1. Multi-source simulation data aggregation and mining based module
(1) Multi-source simulation data aggregation:
the method comprises the steps of carrying out online safety and stability analysis on a power grid on the basis of an online power grid operation state, obtaining a key section which is low in safety margin and needs to be focused by a dispatcher, forming big data of a simulation power grid operation state by using a Monte Carlo algorithm, calculating the limit transmission capacity of the key section in each simulation power grid operation state, and obtaining a fine rule for calculating the limit transmission capacity of the key section by using a big data mining method. The key section and the fine rule of the power grid are power grid safe operation knowledge, and a power grid safe operation knowledge base is formed on the basis of the power grid safe operation knowledge.
Establishing a power grid operation state description considering non-electrical quantity factors such as meteorological factors by utilizing the power grid operation big data; applying a Support Vector Machine (SVM) to stratify the power grid safe operation knowledge according to whether the key section appears or not; clustering the running states of the massive power grids by using a clustering analysis method to form different forms of fine rules and establish a power grid safe running knowledge base; and matching the real-time power grid operation data with the historical data in real time, thereby realizing rapid and accurate advanced safety early warning of the power grid.
(2) Drilling multi-source simulation data:
the system automatically excavates data such as plans, modes, load prediction, power generation prediction, alarms and the like from services such as plan decision, operation evaluation, real-time operation, supporting platforms, online analysis and early warning and the like, calculates key data information such as heavy load, out-of-limit, faults, mode adjustment and the like of an important section in a set time period from a current time section, and when long-time pre-scheduling is carried out, the system is triggered to simulate the operation state of a power grid according to key time points and provides a system safe operation suggestion strategy.
2. Universal visual simulation platform
(1) Front-end data visualization techniques such as Echarts open source framework, HTML5canvas animation, etc.:
in this embodiment, charts of types such as histograms, line charts, maps, and the like in echarts are used, and multiple external data formats are supported for asynchronous loading driving, which may be js arrays, json files, or tabular data, and different data are loaded respectively along with animation effects, thereby providing a user-friendly use experience.
The canvas element of the HTML5 uses JavaScript to draw an image on a webpage, the canvas has many drawing functions, such as a method of drawing a brush, a graph, a character and processing the image, in this embodiment, we rewrite the existing graph (a circuit diagram, a tide diagram, etc.) developed based on flex, which not only improves the compatibility of HTML to the graph, but also greatly improves the speed of opening the graphical interface by the browser, and simultaneously avoids the trouble of repeatedly downloading and updating the FLASH plug-in.
(2) Front-end modularization and development of reusable and configurable componentization:
the method adopts a modular development mode in front-end development, a requireJS technology is selected, and the advantages of modular development are many, firstly, RequireJS is used, a callback function can be executed after related js is loaded, the process is asynchronous, so that page blocking caused when a browser executes js can be avoided, secondly, through RequireJS, you can reload a corresponding js module when js logic needs to be loaded, and thus, a large amount of requests and data transmission can be avoided when a webpage is initialized.
According to the idea of componentization development in the most popular act framework in the front-end technology, some general components are encapsulated in the development process, an independent visible/interactive area on a page is regarded as one component, each component corresponds to an engineering catalog, and various resources required by the components are maintained under the catalog; each component is relatively independent, the page is just a container of the components, and the components are freely combined to form a complete interface. When a component is not needed or is desired to be replaced, the entire directory can be deleted/replaced.
3. Simulation scene data source based on application service
In the embodiment, by researching the operation requirements of the power grid scheduling operation system, such as a primary system, a secondary system, network analysis, scheduling instructions, risk fault simulation, power grid monitoring, plan curves, load curves, plan instruction simulation, plan feasibility assessment, plan feasibility analysis and the like, of the power grid, the instruction interaction between data input and output and applications applied to the power grid in normal and abnormal states is analyzed, a service data model is established, and a service instruction model is established. A historical typical profile data source may be selected as the simulation model.
4. On-demand creation module of simulation scene based on application service
By receiving simulation scene creation information of a client, analyzing the dependency relationship of application services, reasonably arranging the creation sequence of different application services, calculating the resource environment required by scene operation, dynamically applying for operating resources from a resource management center, realizing that logic operation is performed in a unified simulation scene, and physical operation is distributed in a plurality of containers.
5. Dynamic management module of simulation scene based on application service
The algorithm logic of each application service in the simulation scene of the embodiment is derived from each actual application service of the scheduling system, the data and the instruction required by each service in the simulation scene are derived from the simulation engine, and the simulation engine dynamically manages the data interaction and the instruction interaction of the services.
6. Multi-service simulation process element information aggregation one-stop control module
In the embodiment, the operations of simulation flow control, simulation service operation, scene creation, event query, simulation maintenance, multidimensional display and other services are all completed on the designated interface through information integration and service centralized calling. And a new simulation management mode is created, and frequent control window switching and tedious background file configuration are reduced, so that the user UI experience is increased.
7. Power grid equipment scene inspection module
In this embodiment, a basic idea of a level of detail model (level of detail) is adopted to establish a plurality of similar models for each object, different models describe different details of the object, and the more accurate the selection of the object details is, the more complex the model is. When the observation point is far away from an object, the observation point can only occupy few pixel points on the screen, and under the condition, a model with lower precision is selected for the object so as to reduce the number of patches to be displayed and improve the rendering rate of the model. When the observation point is close to an object, a model with higher precision is selected for the object, so that the details of the object are clearer.
According to the characteristic of power grid scene inspection, the embodiment adopts a real-time collision detection algorithm based on graphs to perform collision detection in the power grid scene. More specifically, a hierarchical bounding box algorithm (hierarchical bounding volumes) is adopted, and the core idea is to approximately describe a complex geometric object by a bounding box with a slightly larger volume and simple geometric characteristics, so that only objects overlapped by the bounding box need to be subjected to further intersection tests.
In the embodiment, a visual range rendering algorithm is also adopted to mainly calculate the dynamic visual angle of the virtual human during tour in a power grid scene, detect a visual model in a visual cone range (as shown in fig. 1) and perform dynamic rendering of the model, and through data visibility cutting, on the premise of not influencing the visual effect, the geometric complexity of three-dimensional data is reduced, the number of graphs processed by a graph system in real time is reduced, and the display efficiency of the graphs is improved.
8. Man-machine interaction operation module based on model picking
The embodiment adopts a ray picking technology to realize three-dimensional man-machine interaction, the ray intersection picking technology is a ray picking algorithm based on a three-dimensional space, screen coordinates are converted into view port coordinates of graphic software or a system, appropriate depth values are added to the points according to different graphic APIs, world space coordinates of the picked points are pushed out, then focus coordinates are converted into screen coordinates, a ray is selected from a camera position point to a mouse to intersect the ray and an object in the three-dimensional space, and the selected entity is an entity closest to the camera position point.
9. Synchronization module for monitoring equipment state and power grid real-time information
The embodiment mainly researches a synchronous interaction technology of the running state information and the fault state information of the power grid equipment and the real-time information of the power grid, establishes corresponding mathematical models and logical relations for the running mechanism and the mutual relations of all the equipment of the power grid, and triggers corresponding equipment model actions, lighting of a light word board, numerical value refreshing of instruments and the like according to the real-time information of the external power grid.
Specifically, a model comparison relationship between each power grid equipment element and actual equipment in a database needs to be established, the KKS coding specification is used for reference, and the power equipment information is coded by a method of combining keywords and numbers to generate a unique identifier which can be identified by the substation simulation system. The classified objects are successively divided into a plurality of levels according to a plurality of selected attributes (or characteristics) by adopting a line classification method, and each level is divided into a plurality of categories. The categories in the same layer form a parallel relationship, and the categories in different layers of the same branch form a membership relationship. According to the actual physical equipment and the subordination relationship thereof, the power grid equipment can be abstracted into the following 5 layers, namely: plant, voltage class, bay, device, terminal, as in fig. 2.
If the closing auxiliary contact of a certain switching device is subordinate to the primary device, the following can be expressed: f01.V220.XL01.BR01.POS _ OPN. Wherein, F01 represents a certain substation in the simulation system, V220 represents that the current primary equipment is in 220kV voltage class, XL01 represents a certain line interval, BR01 represents the switchgear to which the closing auxiliary contact belongs, and POS _ OPN represents the current closing auxiliary contact. When the three-dimensional module receives switch-on position information of a switch from a power grid real-time system, the action of a power grid equipment model related to the alias of F01.V220.XL01.BR01 is triggered, for example, corresponding switch equipment in a three-dimensional scene is dynamically closed, and according to the power grid power flow change, power flow data of the circuit breaker and an indication numerical value of a meter to which the circuit breaker belongs are refreshed in real time.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A power grid information display simulation system based on multi-source simulation data aggregation and mining is characterized by comprising:
the method comprises the steps of gathering and mining data based on multi-source simulation; the multi-source simulation data aggregation utilizes a Monte Carlo algorithm to form large data of the simulation power grid operation state, the limit transmission capacity of the key section under each simulation power grid operation state is calculated, and a fine rule for calculating the limit transmission capacity of the key section is obtained through a large data mining method; establishing a power grid operation state description considering non-electrical quantity factors by utilizing the power grid operation big data; layering according to knowledge of whether the key section appears on the safe operation of the power grid; clustering the running states of the massive power grids by using a clustering analysis method to form different forms of fine rules, and establishing a power grid safe running knowledge base; matching the real-time power grid operation data with historical data in real time;
a universal visual simulation platform; developing block-based elastic configuration modular windows using the Echarts open source framework, front-end data visualization techniques of HTML5canvas animation;
a simulation scene data source based on the application service; analyzing the instruction interaction between data input and output and application of each application in normal and abnormal states of the power grid by researching the operation requirements of the power grid primary system, the secondary system, network analysis, scheduling instructions, risk fault simulation, power grid monitoring, plan curves, load curves, plan instruction simulation, plan feasibility assessment and plan feasibility analysis applied to the power grid scheduling operation system, establishing a service data model and establishing a service instruction model;
an on-demand creation module for simulation scenarios based on application services; by receiving simulation scene creation information of a client, analyzing the dependency relationship of application services, reasonably arranging the creation sequence of different application services, calculating the resource environment required by scene operation, dynamically applying for operating resources from a resource management center, realizing that logic operation is performed in a unified simulation scene, and physical operation is distributed in a plurality of containers;
a dynamic management module based on the simulation scene of the application service; the algorithm logic of each application service in the simulation scene is derived from each practical application service of the scheduling system, the data and the instruction required by each service in the simulation scene are derived from the simulation engine, and the simulation engine dynamically manages the data interaction and the instruction interaction of the services;
the information of the multi-service simulation process elements is aggregated into a one-stop control module; the operation of simulation flow control, simulation service operation, scene creation, event query, simulation maintenance and multidimensional display of the services is completed on a designated interface by information integration and service centralized calling;
a power grid equipment scene inspection module; establishing a plurality of similar models for each object, wherein different models describe the object in different details; performing collision detection in a power grid scene by adopting a real-time collision detection algorithm based on a graph; the dynamic visual angle of the virtual human during tour in the power grid scene is calculated by adopting a visual range rendering algorithm, a visual model in a visual cone range is detected, dynamic rendering of the model is carried out, the geometric complexity of three-dimensional data is reduced on the premise of not influencing the visual effect through data visibility reduction, the number of graphs processed by a graph system in real time is reduced, and the graph display efficiency is improved;
a human-computer interaction operation module based on model picking; the ray pickup technology is adopted to realize the three-dimensional man-machine interaction;
the synchronization module is used for monitoring the equipment state and the real-time information of the power grid; the synchronous interaction technology of the running state information and the fault state information of the power grid equipment and the real-time information of the power grid is researched, corresponding mathematical models and logical relations are established for the running mechanism and the mutual relations of all the equipment of the power grid, and corresponding equipment model actions, lighting of the light character plate and instrument numerical value refreshing are triggered according to the real-time information of the external power grid.
2. The power grid information display simulation system based on multi-source simulation data aggregation and mining as claimed in claim 1, wherein in the multi-source simulation data aggregation and mining module, the system automatically calculates key data information of heavy load, out-of-limit, fault and mode adjustment of an important section in a set time period from a current time section from planning decision, operation evaluation, real-time operation, a support platform and online analysis early warning service mining plan, mode, load prediction, power generation prediction and warning data, and when prescheduling is performed for a long time period, the system triggers to simulate the power grid operation state according to the key time point and gives a system safe operation suggestion strategy.
3. The power grid information display simulation system based on multi-source simulation data aggregation and mining as claimed in claim 1, wherein in the universal visual simulation platform, a histogram, a line graph and a map type chart in echarts are used, and a plurality of external data formats are supported for asynchronous loading driving, wherein the asynchronous loading driving comprises js arrays, json files or tabular data.
4. The power grid information display simulation system based on multi-source simulation data aggregation and mining as claimed in claim 3, wherein a plurality of general components are encapsulated in the general visual simulation platform, an independent visual/interactive area on a page is regarded as one component, each component corresponds to an engineering catalog, and various resources required by the components are maintained under the catalog; each component is relatively independent, the page is only a container of the component, and the components are freely combined to form an interface with complete functions; when a component is not needed, or is desired to be replaced, the entire directory is deleted/replaced.
5. The power grid information display simulation system based on multi-source simulation data aggregation and mining as claimed in claim 1, wherein in the power grid equipment scene inspection module, a real-time collision detection algorithm based on graphics is adopted for collision detection in a power grid scene, and a hierarchical bounding box algorithm is adopted.
6. The power grid information display simulation system based on multi-source simulation data aggregation and mining according to claim 1, wherein in a human-computer interaction operation module based on model picking, a ray intersection picking technology of three-dimensional human-computer interaction is a ray intersection picking algorithm based on a three-dimensional space, screen coordinates are converted into view port coordinates of graphic software or a system, the world space coordinates of a picked point are pushed out by adding a proper depth value to the point according to different graphic APIs (application programming interfaces), then the focus coordinates are converted into screen coordinates, a ray is made to the point selected by a mouse through a camera position point to intersect the ray and an object in the three-dimensional space, and the selected entity is an entity closest to the camera position point.
7. The power grid information display simulation system based on multi-source simulation data aggregation and mining according to claim 1, characterized in that in a synchronization module for monitoring equipment state and power grid real-time information, a model comparison relation between each power grid equipment element and actual equipment in a database needs to be established, a KKS coding specification is used for reference, power equipment information is coded by adopting a method combining keywords and numbers, and a unique identifier which can be identified by the substation simulation system is generated, namely, a classification object is gradually divided into a plurality of levels according to a plurality of selected attributes or characteristics by adopting a line classification method, each level is divided into a plurality of categories, parallel relations are formed among the categories of the same level, and membership relations are formed among the categories of the different levels of the same branch; according to the actual physical equipment and the subordination relationship thereof, the power grid equipment is abstracted into the following 5 layers, namely: plant, voltage class, bay, equipment, terminal.
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| CN111583057A (en) * | 2020-03-17 | 2020-08-25 | 国网浙江省电力有限公司杭州供电公司 | Simulation analysis method and device for power distribution network security |
| CN111507575B (en) * | 2020-03-25 | 2022-09-13 | 国电南瑞科技股份有限公司 | HTML 5-based local drawing method for electric primitives of power grid dispatching control system |
| CN111553079B (en) * | 2020-04-29 | 2023-06-09 | 武汉船舶职业技术学院 | Three-dimensional power grid training simulation method based on virtual reality technology |
| CN111597461B (en) * | 2020-05-08 | 2023-11-17 | 北京百度网讯科技有限公司 | Target object aggregation prediction method and device and electronic equipment |
| CN112631225A (en) * | 2020-12-21 | 2021-04-09 | 西安诺瓦星云科技股份有限公司 | Multi-device plan execution method, device and system and computer readable storage medium |
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| CN113872334B (en) * | 2021-11-30 | 2022-02-18 | 深圳市融创鸿源科技有限公司 | Power grid real-time data visualization display method and system |
| CN115361150B (en) * | 2022-05-27 | 2023-10-13 | 南京邮电大学 | Security risk assessment method for power distribution network risk cascade under network attack |
| CN114970176B (en) * | 2022-06-02 | 2024-04-05 | 中国南方电网有限责任公司超高压输电公司广州局 | Virtual simulation method and device for electric power operation, computer equipment and storage medium |
| CN117075863B (en) * | 2023-10-10 | 2024-02-02 | 北京优锘科技股份有限公司 | Method and system for generating screen scene based on JSON data |
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