CN103810753A - Method for visually showing power grid dispatching businesses - Google Patents

Abstract

A method for visually displaying power grid dispatching services, comprising: a power grid three-dimensional model module established based on power grid geographic information; a three-dimensional layered module obtained by performing three-dimensional layering on the power grid geographic information; virtualizing the power grid geographic information Actual operation, the established three-dimensional electronic sand table; through the three-dimensional model module of the power grid, the three-dimensional layered module and the three-dimensional electronic sand table, the visual display of power grid dispatching is realized. Turn the real sand table into a virtual three-dimensional sand table, which can carry out all-round internal display; compared with the plane flow diagram in the prior art, the three-dimensional three-dimensional layered flow diagram has a wider display latitude; the traditional plane wiring diagram is made into The three-dimensional wiring diagram makes the display effect clearer and truly reflects the situation on site.

Description

A method for visually displaying power grid dispatching business

technical field

The invention relates to the technical field of power grid scheduling information visualization, in particular to a method for visually displaying power grid scheduling services.

Background technique

In the existing technology, the traditional power grid wiring map can only be flattened, showing ground object information, and cannot intuitively show the real reality. For example, the display of elevation information relies on static and complex contour lines. This information is very unfavorable for quick decision-making. And the display ability is limited and the dimension is single.

Existing sand tables include modules made of traditional physical sand tables based on topographic maps, aerial photos or on-site terrain, according to a certain proportion, with sand, wargames and other materials. As well as the later physical sand table combined with multimedia sound and light, the electronic sand table generally has defects such as single performance, long modeling cycle, inconvenient portability, single function, and simple geographical presentation.

The current power flow diagram of the existing power grid is flat, and the power flow diagram shows the main parameters of the operation of the substation equipment, and displays various data of the operation of the substation equipment in the form of a chart, mainly including voltage, current, active power, reactive power, frequency, power factor, etc. and other data; the existing grid power flow diagram cannot integrate all relevant information together for display, such as showing the relationship between power generation, power transmission, and power consumption.

Contents of the invention

The purpose of the present invention is to design a method for visually displaying power grid dispatching services, and to solve the above-mentioned problems by establishing a topographic map in a computer for panoramic three-dimensional modeling, creating a three-dimensional electronic sand table, and adopting a three-dimensional layered power flow diagram.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

A method for visually displaying power grid dispatching services, including:

Based on the geographical information of the power grid, the 3D model module of the power grid is established;

Performing three-dimensional layering on the grid geographic information to obtain a three-dimensional layering module;

The three-dimensional electronic sand table established by performing virtual reality operation on the geographical information of the power grid;

Through the three-dimensional model module of the power grid, the three-dimensional layered module and the three-dimensional electronic sand table, the visual display of power grid dispatching is realized.

Preferably, the specific method for establishing the three-dimensional model module of the power grid is:

Step 201, collecting the geographical information of the power grid;

Step 202, virtualize the geographical information of the power grid, and build a three-dimensional spatial data engine;

Step 203, constructing a dynamic image for the 3D spatial data engine to form a 3D model of the power grid

module.

Preferably, in step 201, the grid geographic information includes thermal power plant information, hydropower plant information, wind farm information, nuclear power plant information and converter station information.

Preferably, in step 202, the method for virtualizing the geographical information of the power grid is:

Step 401, grading the geographical information of the power grid to construct a grading space;

Step 402, according to the hierarchical space, construct the index structure of the geographical information of the power grid;

Step 403, establishing a LOD algorithm module according to the index structure;

Step 404, asynchronously load and eliminate the data of the LOD algorithm module to form a virtualization module;

Step 405, perform graphic hierarchical occlusion and culling drawing on the virtualization module, and complete the virtualization of the geographic information of the power grid.

Preferably, the geographic information of the power grid is subjected to three-dimensional layering, and the specific method of the obtained three-dimensional layering module is as follows:

Step 501, perform stratification according to the voltage level, and establish a hierarchical structure in the three-dimensional model module of the power grid;

Step 502, according to the layered structure, render the key factors of the three-dimensional model module of the power grid to obtain a three-dimensional layered module.

Preferably, the key factors include the total number of step-down transformers in the substation, the capacity of the total step-down transformers in the substation, the load rate of the total step-down transformers in the substation, the alarm status of the load rate of the total step-down transformers in the substation, the type of power plant, and the number of days of coal storage , tonnage of coal stored, number of units, unit output, degree of automatic power generation control and operation, desulfurization efficiency and upstream and downstream water levels.

Preferably, the specific method of performing a virtual reality operation on the geographical information of the power grid to establish a three-dimensional electronic sand table is as follows:

Step 701, combine the split layer module with the actual power grid geographic information for freehand, and create a three-dimensional graphic element;

Step 702, displaying the 3D graphic elements in GIS, so as to realize the establishment of a 3D electronic sand table.

The beneficial effects of the present invention can be summarized as follows:

1. Turn the real sand table into a virtual three-dimensional sand table, which can carry out all-round internal display;

2. Compared with the plane current diagram in the prior art, the three-dimensional three-dimensional layered current diagram shows a wider latitude;

3. Make the traditional planar wiring diagram into a three-dimensional wiring diagram, the display effect is clearer, and it truly reflects the situation on site.

Description of drawings

Fig. 1 is a schematic flow chart of the present invention.

Fig. 2 is a schematic flow diagram of the module for establishing a three-dimensional model of the power grid in the present invention.

Fig. 3 is a schematic flow chart of the virtualization of grid geographic information according to the present invention.

Fig. 4 is a schematic flow chart of three-dimensional layering by the three-dimensional model module of the power grid in the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, a method for visually displaying power grid dispatching services includes:

Based on the geographical information of the power grid, the 3D model module of the power grid is established;

Performing three-dimensional layering on the grid geographic information to obtain a three-dimensional layering module;

The three-dimensional electronic sand table established by performing virtual reality operation on the geographical information of the power grid;

Through the three-dimensional model module of the power grid, the three-dimensional layered module and the three-dimensional electronic sand table, the visual display of power grid dispatching is realized.

As shown in Figure 2, the specific method of establishing the three-dimensional model module of the power grid is:

Step 201, collecting geographic information of the grid; the geographic information of the grid includes thermal power plant information, hydropower plant information, wind farm information, nuclear power plant information and converter station information;

Step 202, virtualize the geographic information of the power grid, and build a three-dimensional spatial data engine;

Step 203, constructing a dynamic image for the three-dimensional spatial data engine to form a three-dimensional model module of the power grid.

In the present invention, the application of three-dimensional virtual reality is adopted, and technologies such as advanced geographic information system, virtual reality, three-dimensional high-precision modeling, and database management are used to integrate the main thermal power plants, hydropower plants, wind farms, nuclear power plants, and converters within the entire power grid. Stations and other characteristic factories and stations are modeled as 1:1 scaled-down high-precision visualized 3D virtual factories and stations, which are loaded into the computer, and the entire terrain and geographic map is established in the computer for panoramic 3D modeling. The system uses advanced virtual reality technologies such as hierarchical spatial index architecture, hierarchical continuous LOD algorithm module, data asynchronous loading and elimination, and hierarchical occlusion elimination to build a system "visualized three-dimensional spatial data engine", which realizes large-scale, high-precision (the highest precision reaches 0.5 m) Effective control and management of massive virtual scenes. For the first time, the system realizes the nesting and dynamic updating functions of multi-resolution, multi-precision satellite images and terrain data in massive 3D environments, and can provide 3D spatial references that meet the timeliness requirements, and satisfy the monitoring personnel on the actual geographical distribution of the power grid from a macro perspective , for a global overview of the operating environment. The data-driven 3D water flow dynamic performance function has been realized in massive 3D. For the first time in the 3D environment, the system has developed a variety of combined browsing and query methods such as interactive control, flight along the route, engineering positioning, and flight positioning. The location of any engineering feature, convenient and quick query of the attribute information of the engineering feature. The system has developed the global analysis function for the first time in the three-dimensional environment. This function is especially suitable for correlation analysis and auxiliary decision-making for factors such as rivers, mountains, canyons, and oceans that may affect the operation of the power grid. The actual operation principle and status of power grid stations provide technical support for the whole process of monitoring and decision-making. Through the 3D virtual reality function, it provides a 3D visualized integrated application service platform for the decision-making of various schemes for power grid construction, development, management, and monitoring for the first time.

As shown in Figure 3, in step 202, the method for virtualizing the geographic information of the power grid is as follows:

Classify the geographical information of the power grid to construct a hierarchical space;

According to the hierarchical space, construct the index structure of the geographical information of the power grid;

According to the index structure, establish the LOD algorithm module;

The LOD algorithm module is loaded and eliminated asynchronously to form a virtualization module; step 404, for virtual

The simulation module performs hierarchical occlusion and culling drawing to complete the virtualization of power grid geographic information.

As shown in Figure 4, the three-dimensional layering of the three-dimensional model module of the power grid to obtain the three-dimensional layering module is as follows:

Layer according to the voltage level, and establish a layered structure in the three-dimensional model module of the power grid;

According to the layered structure, the key factors of the three-dimensional model module of the power grid are rendered to obtain a three-dimensional layered module; the key factors include the total number of step-down transformers in the substation, the capacity of the total step-down transformer in the substation, the load rate of the total step-down transformer in the substation, The substation’s total step-down transformer load rate alarm status, power plant type, coal storage days, coal storage tons, unit number, unit output, automatic power generation control operation degree, desulfurization efficiency, and upstream and downstream water levels.

The invention proposes the conceptual design of the three-dimensional layered power flow diagram for the first time. The 500kV is abstracted into two layers of voltage levels of 500kV and 220kV in geographical form and topological form. The current direction between systems is displayed in the upper network, and the direction of flow in and out of each power supply area is highlighted in the lower network. According to the color Differentiate the load level of various places to display the operating conditions of the power supply area of the power plant and substation, which is more intuitive. Various functions can also be freely combined according to different scenarios.

Through the virtual reality operation of the three-dimensional layered module, the specific method of establishing a three-dimensional electronic sand table is as follows:

Combining the split and layered modules with the actual power grid geographic information for freehand, to establish a three-dimensional graphic element;

Display the 3D primitives in GIS to realize the establishment of 3D electronic sand table.

For the plant and station graphic elements, the expression forms are more diverse. For example, it can display the number of main transformers in the substation, the capacity of the main transformer, the load rate of each main transformer, and the alarm status of the load rate, etc.; The key factors affecting the operation of the power plant are the tonnage of coal stored, the number of units, the output of each unit, AGC operation, desulfurization efficiency, and upstream and downstream water levels.

The present invention combines the characteristics of the dispatching department to display inside or outside the system. Generally, the theme of large-screen display will involve grid overview information, operation information, power generation information, electricity consumption information, electricity coal information, new energy information, and future five-year planning information. , Reservoir incoming water information, scheduling daily, scheduling weekly, etc. The scheduling visualization application component is used in the visualization. Through the configuration of the distributed control terminal, according to the commands sent by the message bus, it displays different content according to different requirements, and is deeply integrated with the visualization platform to form a highlight of the scheduling visualization. the overall display level. Through virtual reality technology, the geography of the power grid is expressed in a three-dimensional manner, and with the main three-dimensional modules of the power grid such as substations, power plants, and lines, the current power generation and operation status of the current power grid can be intuitively displayed (the current output can be dynamically displayed on the three-dimensional module. , installed capacity and other information), power transmission operation status (the current power flow direction, active power value, and reactive power value can be dynamically displayed on the line tower of the three-dimensional module), power consumption operation status (dynamically display the real-time load isothermal map of each current power consumption area) . Using the freehand way, combined with the actual situation of thermal power plants, substations, hydropower stations, wind farms, photovoltaic power stations and other plants, the corresponding three-dimensional graphic elements are established. The three-dimensional graphic element will express the main focus and focus parameters of the factory station, and at the same time, combined with the corresponding creativity, the focus and focus parameters will be expressed intuitively and novelly. The integrated power flow diagram is different from the ordinary power grid flow diagram. It can arbitrarily link the primary wiring diagram or video camera of a certain plant; the substation with maintenance work, the line flashes green, and the substation with abnormal accidents, the line flashes red; the line load is heavy It is represented by power flow transmission density. Dense means heavy load, sparse means light load, and overloaded operation will turn into a red alarm; it can be associated with the status monitoring data of power transmission and transformation equipment. The three-dimensional power flow diagram is developed on the basis of the geographical power flow diagram. The three-dimensional power flow diagram is used to display the grid structure diagram of the high voltage level and the low voltage level, and at the same time reflect the power supply relationship of the high voltage level power grid and the low voltage level power grid. Moreover, the three-dimensional power flow diagram uses three-dimensional animation icons to display the operating conditions of power plants and substations, which is more intuitive. The graphic element of dispatching visualization power flow diagram is a key element to express the content and attributes of elements such as substations, power plants, and lines. For a substation, information such as the transformer load rate, substation load, and total station load rate of the substation can be comprehensively displayed using graphic elements. For power plants, it can be divided into thermal power, hydropower, wind power, pumped storage and other types of graphics elements, and can comprehensively display the number of units and load rate of the power plant, power plant type, AGC status, power plant standby, power plant output, desulfurization efficiency, water level prediction , wind forecast, coal situation and other information. Compared with general GIS, which can only be run on PC workstations with high-resolution display, and the loading of elevation images is slow at the same time. The three-dimensional GIS platform for scheduling visualization can use high-precision aerial images and DEM elevation data, and through advanced data processing methods, combined with the support of existing high-performance hardware equipment, can display the panorama in high-definition, high-speed and smooth on the large screen topography. According to the characteristics of power generation, substation, and transmission, the power plant, line, and substation are modeled in a reduced scale using 3D modeling tools. At the same time, the existing 3D platform can be used to roam, Data association and other functions. Finally, the built 3D module can be placed on the built GIS platform for displaying the province's panoramic topography and landforms. The scheduling visualization analysis chart is used as a separate display component. After the implementer designs all the components, the user can freely combine different application scenarios according to different display themes. From realization to common and often new. At the same time, different application content can be displayed according to different application scenarios.

The invention also proposes the concept of a three-dimensional electronic sand table. The electronic sand table established by integrating telemetry technology, freehand geographic information system and three-dimensional key facility simulation technology has incomparable advantages over traditional simulation sand table, physical sand table and planar map. The planar geographical current map is upgraded to a three-dimensional current map based on the freehand real scene presentation of the three-dimensional electronic sand table, and the intuitive electronic sand table is used to display the province's meteorological conditions, grid structure and current conditions of the power grid, distribution of major power plants and substations, and maintenance Operational conditions, load distribution in each power supply area, etc., greatly facilitate real-time control of key project content. The main equipment, load center, and focus on the power grid are displayed in a freehand way, and they are realized on the three-dimensional electronic sand table. Focusing on substations, real-time data and statistical data are displayed on the electronic sand table in real time, and the production area of the power grid is monitored. Focused monitoring has incomparable advantages. The three-dimensional electronic sand table can easily realize perspective and 360-degree viewing, and connect with the real application system for key monitoring, realize dynamic display, realize the integrated display of control, sound and video, and realize rapid transplantation and other functions. Turn the real sand table into a virtual three-dimensional sand table, which can carry out all-round internal display; compared with the plane flow diagram in the prior art, the three-dimensional three-dimensional layered flow diagram has a wider display latitude; the traditional plane wiring diagram is made into The three-dimensional wiring diagram makes the display effect clearer and truly reflects the situation on site.

The present invention has been described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the above-described embodiments, and within the spirit and principles of the present invention, any Modifications, equivalent replacements, etc., should all be included within the protection scope of the present invention.

Claims (7)

1. A method for visually displaying power grid dispatching business, characterized in that, comprising: Based on the geographical information of the power grid, the 3D model module of the power grid is established; Performing three-dimensional layering on the grid geographic information to obtain a three-dimensional layering module; The three-dimensional electronic sand table established by performing virtual reality operation on the geographical information of the power grid; Through the three-dimensional model module of the power grid, the three-dimensional layered module and the three-dimensional electronic sand table, the visual display of power grid dispatching is realized. 2. The method for visually displaying power grid dispatching business according to claim 1, characterized in that: The specific method for establishing the three-dimensional model module of the power grid is as follows: Step 201, collecting the geographical information of the power grid; Step 202, virtualize the geographical information of the power grid, and build a three-dimensional spatial data engine; Step 203, constructing a dynamic image for the 3D spatial data engine to form a 3D model module of the power grid. 3. The method for visually displaying power grid dispatching business according to claim 2, characterized in that: In step 201, the grid geographic information includes thermal power plant information, hydropower plant information, wind farm information, nuclear power plant information and converter station information. 4. The method for visually displaying power grid dispatching business according to claim 2, characterized in that, In step 202, the method for virtualizing the grid geographic information is: Step 401, grading the geographical information of the power grid to construct a grading space; Step 402, according to the hierarchical space, construct the index structure of the geographical information of the power grid; Step 403, establishing a LOD algorithm module according to the index structure; Step 404, asynchronously load and eliminate the data of the LOD algorithm module to form a virtualization module; Step 405, perform graphic hierarchical occlusion and culling drawing on the virtualization module, and complete the virtualization of the geographic information of the power grid. 5. The method for visually displaying power grid dispatching business according to claim 1, characterized in that, The specific method of performing three-dimensional layering on the geographical information of the power grid to obtain the three-dimensional layering module is as follows: Step 501, perform stratification according to the voltage level, and establish a hierarchical structure in the three-dimensional model module of the power grid; Step 502, according to the layered structure, render the key factors of the three-dimensional model module of the power grid to obtain a three-dimensional layered module. 6. The method for visually displaying power grid dispatching business according to claim 5, characterized in that: The key factors include the total number of step-down transformers in the substation, the capacity of the total step-down transformers in the substation, the load rate of the total step-down transformers in the substation, the alarm status of the load rate of the total step-down transformers in the substation, the type of power plant, the number of days of coal storage, and the coal storage rate. Tonnage, number of units, unit output, degree of automatic power generation control operation, desulfurization efficiency and upstream and downstream water levels. 7. The method for visually displaying power grid dispatching business according to claim 1, characterized in that, The specific method of performing virtual reality operation on the geographic information of the power grid to establish a three-dimensional electronic sand table is as follows: Step 701, combine the split layer module with the actual power grid geographic information for freehand, and create a three-dimensional graphic element; Step 702, displaying the 3D graphic elements in GIS, so as to realize the establishment of a 3D electronic sand table.

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