KR20030085675A - 3-Dimensional Dynamic Visualization System And Method For Power System Data - Google Patents

Abstract

PURPOSE: A system and method for 3-dimensionally dynamically visualizing power system data are provided to allow even a novice to easily analyze a large power system to obtain maximum efficiency within a short period of time. CONSTITUTION: A system for 3-dimensionally dynamically visualizing power system includes a data storage unit(14), a 3-dimensional modeling unit, and a display(20). The data storage unit stores power system data including voltage and phase of each mother ship, current flow of each line and line capacitance in a database. The 3-dimensional modeling unit 3-dimensionally models the voltage and phase of each mother ship, current flow of each line and line capacitance using the power system data stored in the data storage unit. The display displays the 3-dimensional modeling data to visualize the data.

Description

3D dynamic visualization system of power system data and its visualization method {3-Dimensional Dynamic Visualization System And Method For Power System Data}

The present invention relates to a power system data visualization system and a visualization method, and more particularly, power system data that can be intuitively grasped regardless of experience with a technique of expressing static and dynamic tidal current analysis data in power system data. A three-dimensional dynamic visualization system and its visualization method.

The most important results of the tidal current analysis of the power system are the expression of the voltage and phase of the grid and the generator and the flow of active and reactive power.

As shown in FIG. 8, it is well known to express the results of the tidal current analysis of the power system in two dimensions, but an important three-dimensional representation has an extremely insignificant form as shown in FIG. 9. That is, in the three-dimensional representation, the magnitude of the voltage is represented by the height of the cylinder, but the phase is not represented. In the case of Japan, power system dynamic analysis data is represented by using a sphere as shown in FIG. 10. The size of the sphere is represented by the magnitude of the voltage, and the phase is expressed by the vertical movement of the sphere.

In the case of the Power World Simulator of Power World Corporation shown in Figs. 8 and 9, the present invention is currently limited to two-dimensional representations, and some trial three-dimensional representations are attempted. However, there is a problem in that the phase cannot be expressed in an important three-dimensional representation. In addition, in the case of FIG. 10 developed by the University of Tokyo, Japan, a method of using a phrase is employed as pointed out above, but this also has a problem that it is not appropriate to express a number of motherships and is difficult to grasp intuitively.

In the case of analyzing hundreds, thousands, or tens of thousands of virtual scenarios with hundreds of busbars like domestic power systems, it was vulnerable to easily comparing, discriminating, and interpreting the most influential busbars. The current tidal current analysis program (PTI's PSS / E), which is currently used for power system analysis in Korea, is very poor in the graphic environment.In the case of foreign countries, as mentioned above, new graphic expression techniques have recently been installed. Programs (such as the Power world Simulator) are emerging.

However, as a result of reviewing these techniques, we have developed the new three-dimensional dynamic visualization system and its visualization method of power system data, which have the initial limitations that have not been established yet. It is desired to make it useful for both beginners and beginners.

In addition, when there is a so-called north-east algae problem in which power is transferred from the power generation stage to the demand stage in a characteristic power system such as in Korea, it is important to consider the current flow and phase angle of the line rather than the magnitude of the voltage. As a means, it is extremely difficult to apply in domestic and foreign methods as present.

The present invention has been devised in view of the above-described conventional situation, and is a technique for expressing static and dynamic algae analysis data in the algae analysis result of the electric power system, which can be intuitively analyzed regardless of the expertise of the analysis experience. The purpose is to provide a 3D dynamic visualization system and its visualization method.

In order to achieve the above object, the three-dimensional dynamic visualization system of power system data according to a preferred embodiment of the present invention, the power system data including the voltage and phase of each bus line, the flow of each line and the line capacity of the database Data storage means for storing the data; A power system three-dimensional modeling means for three-dimensionally modeling the voltage and phase of each bus, the flow of birds and the line capacity of each line using the power system data stored in the data storage means; And display means for displaying and visualizing three-dimensional modeling data modeled by the power system three-dimensional modeling means on a display.

Here, in the power system three-dimensional modeling means, the voltage and phase in each bus bar are represented by a cylinder and a specific figure, and the height of the cylinder is varied according to the magnitude of the voltage, and the phase is the color of the specific figure. Expressed by separating.

In the power system three-dimensional modeling means, the voltage and phase in each bus bar are represented by a cylinder and a specific figure, and the height of the cylinder is varied according to the magnitude of the voltage, and the phase is represented by the cylinder and the specific figure. You may express it by giving direction to.

The particular figure is preferably any one selected from rhombus, triangle, ellipse, and cone, and the phase is preferably divided into two parts of 0 ° to 180 ° and 181 ° to 360 °.

The power system three-dimensional modeling means, each line is represented by modeling in the shape of a tube, the tidal flow of each line is represented by forming a band in the tube and moving the band corresponding to the flow direction of the tidal flow.

The three-dimensional modeling means of the power system, each line is modeled and expressed in the shape of a tube, the tidal flow of each line is formed with a bracket (> and <) in the tube and represented by the bracket in response to the flow direction of the tidal flow do.

In the power system three-dimensional modeling means, the capacity of each line represents the overload of the capacity by at least one of the color of the line and the band or the top.

In order to achieve the above object, a three-dimensional dynamic visualization method of power system data according to a preferred embodiment of the present invention includes a power system including voltage data and phase data of each bus line, and current flow data and line capacity data of each line. A first step of receiving data and three-dimensionally expressing a line based on the bus data; A second step of three-dimensionally expressing a voltage and a phase in a direction perpendicular to the line at the position of the bus by using voltage data and phase data of each bus among the power data; Each of the above-described lines is characterized in that it comprises a third step of three-dimensionally expressing the flow of the flow and the capacity of the line based on the flow data and the line capacity data of the power data.

According to the present invention configured as described above, in the representation of the magnitude and phase of the power system bus voltage, which is the most important information in the power system, an element that is not efficient in representing by graphic (three-dimensional modeling) rather than the conventional numerical representation is Many new techniques using specific shapes (diamonds, triangles, ellipses, cones, etc.) and cylinders have been invented to achieve maximum efficiency in analysis. That is, the height of the cylinder represents the magnitude of the voltage, and the movement of a specific figure represents the phase angle. In addition, in case of the existence of a large number of buses and tracks, it is expressed in 3D form so that the most influential buses can be easily identified according to the 3D view-point.

1 is a block diagram schematically illustrating a three-dimensional dynamic visualization system of power system data according to the present invention;

2A to 2C are basic conceptual diagrams representing voltage and phase in each bus line in a three-dimensional dynamic visualization method of power system data according to the present invention;

3 is a basic conceptual diagram representing the flow of tidal current and the capacity of the line in the three-dimensional dynamic visualization method of the power system data according to the present invention,

4 and 5 are diagrams showing an example of expressing the voltage and phase in the bus, the flow of tidal current and capacity in the line in the three-dimensional dynamic visualization method of the power system data according to the present invention;

6 is a flowchart illustrating a flow of a three-dimensional dynamic visualization method of power system data according to the present invention;

7 is an exemplary view implemented by a three-dimensional dynamic visualization method of power system data according to the present invention in the system of FIG.

8 is a view for explaining an example of a two-dimensional visualization method of a conventional power system data;

9 is a view for explaining an example of a three-dimensional visualization method of conventional power system data;

10 is a view for explaining another example of a three-dimensional visualization method of a conventional power system data.

※ Explanation of code for main part of drawing

10: main controller module 12: power data input unit

14: power data database 16: power system visualization engine

18: display controller module 20: display

22: key input unit

Hereinafter, a three-dimensional dynamic visualization system of power system data and a visualization method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram schematically illustrating a three-dimensional dynamic visualization system of power system data according to the present invention.

As shown in the figure, the system includes a main controller module 10, a power data input unit 12, a power data database 14, a power system visualization engine 16, a display controller module 18, and a display. 20 is configured to include.

The power data input unit 12 refers to a main branch point for distributing power through switchgear in each bus (power plant or substation, etc.), and each power generation stage may illustrate a power plant or substation, and the load stage may consume more than a predetermined scale. Large buildings or specific areas with power) and voltages and phases on each bus that are detected and input on each line (meaning distribution lines between bus lines), and power current flow on each line. And a portion receiving power system data such as line capacity in real time. The power data input unit 12 may receive a tidal current analysis result calculated by the power system visualization engine 16 to be described later. In this case, the tidal current analysis result is stored in a power data database 14 to be described later. In addition, the power system visualization engine 16 may directly perform three-dimensional visualization using the algae analysis results stored in the electric power data database 14 without performing calculation for algae analysis.

The power data database 14 receives power system data input from the power data input unit 12 in real time, data such as voltage and phase for each bus line, and data such as power current flow and power capacity for each line. Is configured to store database by input time zone.

The key input unit 22 provides an operator interface of the present system. In order to display a power data three-dimensional analysis screen for each data, a three-dimensional state analysis screen for a specific bus or line, or a specific region according to the desire of the operator. It is the configuration for the operator to select and input each display mode.

The power system visualization engine 16 is configured to implement a power system three-dimensional dynamic visualization from power system data stored in the power data database 14.

The main controller module 10 reads the power data required for the corresponding screen display from the power data database 14 in response to the screen display mode selected by the operator from the key input unit 22 to generate the power system visualization engine. The power system visualization engine 16 is controlled to transmit the power system three-dimensional dynamic visualization corresponding to the display mode by transmitting the same to the display mode, and the power system three-dimensional dynamic implemented in the power system visualization engine 16. The display controller module 18 controls the display 20 to display the power system three-dimensional dynamic visualization screen corresponding to the display mode by the visualization data.

Next, a basic concept will be described for a method of expressing the voltage and phase of a bus line and the flow and capacity of a line in the power system data in the power system visualization engine 16 according to a preferred embodiment of the present invention. .

2A to 2C are basic conceptual diagrams representing voltages and phases at each bus line in a 3D dynamic visualization method of power system data according to an exemplary embodiment of the present invention.

In the preferred embodiment of the present invention, there are many factors that are not efficient in representing the magnitude and phase of the bus voltage of the power system, which is the most important information in the power system, in the graphic (three-dimensional modeling) rather than the conventional numerical expression. New techniques of shape (or rice, barley, etc.) were devised to achieve the maximum efficiency in the analysis.

That is, as shown in Fig. 2A, the magnitude of the voltage at the bus bar is expressed by the height of the push rod. In the figure, voltage data of bus bar a is V2 and voltage data of bus bar b is V1.

As shown in Fig. 2B, the mill is represented by, for example, a lozenge and displays the phase of the bus voltage data by the color thereof. As shown in the figure, when the phase of bus voltage data in bus bar a is in the range of 0 to 180 °, for example, it is displayed in red, and the phase of bus voltage data in bus bar b is changed. For example, if it is in the range of 181 to 360 °, it is displayed in blue, for example.

In addition, as shown in Fig. 2C, the phase of the bus bar is expressed by the tilt of the bar and the color of the bar, and the voltage of the bus bar is expressed by the height of the bar. As shown in the figure, in the bus line a, the voltage is V1 and the phase is 0, in the bus line b, the voltage is V2 and the phase corresponds to the value of A in the range of 0 to 180 °, In the bus line c, the voltage corresponds to the magnitude of B in the range of 181 to 360 ° with the voltage V3.

As described above, in the preferred embodiment of the present invention, the magnitude and phase angle of the voltage in the bus bar are basically expressed in the shape of a three-dimensional mill, and the height of the straw is varied according to the magnitude of the voltage, and the phase angle is a specific shape (for example, For example, it is divided into diamonds, triangles, ellipses, etc., and the phase angle is divided into two parts (0 ° to 180 °, 181 ° to 360 °) by giving color or direction to this specific shape.

3 is a basic conceptual diagram representing the flow of tidal current and the capacity of the line in the three-dimensional dynamic visualization method of the power system data according to an embodiment of the present invention.

In a preferred embodiment of the present invention, the line between the bus bar and the bus bar is represented by a cylinder, and the electric current flow in the line is represented by a band on the line cylinder and expressed in the direction of movement of the band, and the capacity of the line Color-coded.

3 (a) and 3 (b) mean that the electric current flows from the bus A to the bus B since the strip continuously moves from the bus A to the bus B in the track between the bus A and the bus B, The color of the band is blue, which means that the power capacity of the line is within the allowable range.

3 (c) and 3 (d) mean that the electric current flow is formed from the bus D to the bus C because the strip continuously moves from the bus D to the bus C in the track between the bus C and the bus D, The color of the band is red, which means the power capacity of the line is exceeded.

4 and 5 are diagrams showing examples of expressing voltage and phase in a bus line, and current flow and capacity in a line in a three-dimensional dynamic visualization method of power system data according to an exemplary embodiment of the present invention.

4 (a) and 4 (b) show examples in which power system data of buses A2 and B2 are represented by a three-dimensional dynamic visualization method of power system data according to a change in time. According to this, the voltage change in the bus can be recognized, the line capacity can be known by the color of the band on the line, and the flow of tidal current in the line according to the movement of the band. That is, in bus A2, the voltage phase is 0 and the magnitude of the voltage is reduced. In bus B2, the voltage phase is 0 and the magnitude of the voltage is increased. The line capacity is normal and the power flow is easily flowing from the bus A2 to the bus B2. I can tell.

FIG. 5 shows an example in which power system data of buses A1 and B1 are represented by a three-dimensional dynamic visualization method of power system data. Since the color of wheat in bus A1 is blue, the voltage phase is in the range of 181 to 360 °. Since the color of wheat in bus B1 is red, the voltage phase is in the range of 0 ~ 180 ° and the color of the band of the line is red, which makes it easy to identify the excess condition.

6 is a flowchart illustrating a three-dimensional dynamic visualization method of power system data according to an exemplary embodiment of the present invention.

As shown in the figure, when a 3D dynamic visualization screen display request of the power system data is input from the key input unit 22, the main controller module 10 reads the power data from the power data database 14 to power system. The read power data is transferred to the visualization engine 16 (steps S10 and S12).

The power system visualization engine 16 three-dimensionally displays a line, for example, in a cylindrical shape, based on bus data among the power data (step S14). In addition, the voltage data and phase data of each bus line are used in the power data in the direction perpendicular to the line at the position of the bus bar, for example, as shown in FIG. 2C. The magnitude is displayed and the voltage phase is displayed three-dimensionally by the color of the wheat and the slope of the wheat straw (step S16). In addition, in each of the lines displayed in step S14, the line capacity is displayed according to the color of the band based on the tidal flow data and the track capacity data among the power data, and the three-dimensional movement is performed in response to the direction of the tidal flow. (Step S18).

Then, when new data is input from the power data input unit 12 to the power data database 14 and the power data of the database 14 is updated, the main controller module 10 reads the updated power data to visualize the power system. It transfers to the engine 16 and visually displays and displays three-dimensionally the voltage and phase on the bus line, the flow of the tidal current and the line capacity of the line according to the contents of the updated power data as in steps S16 and S18 (steps S20 and S22).

7 is an exemplary diagram implemented by a three-dimensional dynamic visualization method of power system data according to the present invention in the system of FIG.

In FIG. 2 to FIG. 5, the difference between the contents of the bus voltage is represented by the height of the cylinder and the phase of the bus voltage is represented by the rotation of the cone or the left and right movements.

As shown in FIG. 7, the flow of lines for active power and reactive power (active power and reactive power can be expressed simultaneously or optionally only one) can be modeled with a cylindrical tube so that the direction of the flow is a ">" in the line. In case of expressing the overload of the track, it is expressed in a specific color (for example, red), and various perspectives of wheat field shape through continuous updating of bird analysis data. The 3D animation with the 3D animation allows for the easy comparison, discrimination and interpretation of the most influential busbars. In other words, it is easy to observe the change in the magnitude of the voltage in the front view, and the flow of algae in the plane view.

In order to use the analysis result form of PSS / E, the most commonly used algae analysis program in Korea, the voltage part is expressed by adding or subtracting 1.0 pu, and the phase is 0 ~ 180 ° using degree. And 181 ~ 360 ° divided into two parts, two distinctions are expressed in a specific form.

When the phase angle is expressed in the form of wheat moving by the wind, the angle of the wheat movement is expressed by 0 to 180 ° and 181 to 360 °, and is smaller than the other way. By expressing by reducing and reducing, it becomes more natural movement.

In addition, the line takes the form of a tube and a band, effectively expressing the flow of active power and reactive power, and processing the overload ratio in color to enhance intuitiveness.

In addition, three-dimensional modeling makes it possible to easily identify the most influential mothership by using various three-dimensional view-points (overview, zoom in, zoom out) when there are many parent athletes. That is, since the height and the left and right movements of the mill are mainly seen in the front view, the magnitude and phase of the bus voltage can be effectively known, and in the plane view, the pipe-like lines are mainly seen, so it is easy to see the flow of the tidal currents such as the northern algae. .

<Example 1>

As shown in FIG. 2, the magnitude and phase angle of the voltage in the bus bar are basically expressed in a three-dimensional mill shape.

The height of the push rod is varied according to the magnitude of the voltage. In addition, the phase angle of the voltage is divided into specific shapes (diamonds, triangles, ellipses, etc.), and the phase angle is divided into two parts (0 ° to 180 °, 181 ° to 360 °) by giving color or direction to the specific shape. Express.

In addition, the flow of active power and reactive power is modeled by a line as a pipe, and the direction of the flow is expressed in the form of a cramp ("<" or ">"), and the line is overloaded. Is represented by a specific color (eg red).

In addition, through the continuous update of the algae analysis data, the most influential mothership can be easily compared, discriminated and interpreted by three-dimensional animation with various visual viewpoints in the shape of wheat fields.

<Example 2>

As shown in FIG. 7, the magnitude and phase angle of the voltage are basically expressed in a cylindrical shape having a three-dimensional cone.

In FIG. 7, the height of the cylinder is varied according to the magnitude of the voltage, like a vertical cylinder. The phase angles of the voltages are divided into cones and the phase angles are expressed by giving directions to these shapes.

In addition, the flow of active power and reactive power is modeled as a yellow tube, and the flow of tidal flow is represented by a black band moving, and a certain color (for example, red) indicates the overload of the line. Color).

In addition, through continuous update of the analysis data of the bird, three-dimensional animation with various visual perspectives is expressed so that the most influential mothership can be easily compared, identified, and interpreted.

On the other hand, the present invention is not limited to the above-described typical preferred embodiments, but can be carried out in various ways without departing from the gist of the present invention, various modifications, alterations, substitutions or additions are common in the art Those who have knowledge will easily understand. If the implementation by such improvement, change, replacement or addition falls within the scope of the appended claims, the technical idea should also be regarded as belonging to the present invention.

As described in detail above, according to the present invention, in performing large-scale analysis of hundreds to tens of thousands of power systems, even an expert and a beginner can express the intuitive and easy analysis to obtain the maximum efficiency in a short time. It becomes possible.

In other words, it effectively expresses the magnitude, phase angle, and effective / invalid power flow of the line, which are difficult to express simultaneously, in three-dimensional form effectively, and applies a special form of three-dimensional modeling and various kinds of three-dimensional perspectives. It is easy to observe according to the system, and it is especially useful when there are numerous buses and tracks or when reviewing many cases, and the analysis data is effectively processed not only in the stable static state but also rapidly changing dynamic state data. In addition, real-time processing is applied to power system data processing so that non-experts can easily monitor the state of power system, and modeled to use the analysis output data of PSS / E, which is the most used analysis program in Korea. It is an excellent invention.

Claims (19)

Data storage means for storing a database of power system data including voltage and phase of each bus and current flow and line capacity of each line; A power system three-dimensional modeling means for three-dimensionally modeling the voltage and phase of each bus line, the tidal flow and line capacity of each line using the power system data stored in the data storage means; And a display means for displaying and visualizing three-dimensional modeling data modeled by the power system three-dimensional modeling means on a display. The method of claim 1, The three-dimensional modeling means of the power system, the voltage and phase in each bus bar is represented by a cylinder and a specific figure, the height of the cylinder is expressed according to the magnitude of the voltage, the phase is represented by the color of the specific figure 3D dynamic visualization system of the power system data, characterized in that the representation. The method of claim 1, In the power system three-dimensional modeling means, the voltage and phase in each bus bar are represented by a cylinder and a specific figure, and the height of the cylinder is varied according to the magnitude of the voltage, and the phase is represented by the cylinder and the specific figure. 3D dynamic visualization system of power system data, characterized in that the direction given to. The method of claim 2 or 3, The particular figure is a three-dimensional dynamic visualization system of power system data, characterized in that any one selected from rhombus, triangle, ellipse, cone. The method of claim 2 or 3, The phase is three-dimensional dynamic visualization system of the power system data, characterized in that divided into two parts of 0 ° ~ 180 ° and 181 ° ~ 360 °. The method of claim 1, The three-dimensional modeling means of the power system, each line is represented by modeling in the shape of a tube, the tidal flow of each line is characterized by forming a band in the tube and the band to move in response to the flow direction of the tidal flow. 3D dynamic visualization system of power system data. The method of claim 1, The three-dimensional modeling means of the power system, each line is modeled and expressed in a tubular shape, the tidal flow of each line is formed in the tube with a bracket (> and <) and represented by the bracket in response to the flow direction of the tidal flow 3D dynamic visualization system of the power system data, characterized in that. The method of claim 6, The power system three-dimensional modeling means, the capacity of each line is a three-dimensional dynamic visualization system of the power system data, characterized in that to express the overload of the capacity by at least one color of the line and the band. The method of claim 7, wherein The power system three-dimensional modeling means, the capacity of each line is a three-dimensional dynamic visualization system of power system data, characterized in that to express the overload of the capacity by at least one color of the line and the angle. A first step of receiving power system data including voltage data and phase data of each bus line, current flow data and line capacity data of each line, and three-dimensionally expressing a line based on the bus data; A second step of three-dimensionally expressing a voltage and a phase in a direction perpendicular to the line at the position of the bus by using voltage data and phase data of each bus among the power data; Each of the expressed lines includes a third step of three-dimensionally expressing the flow of the current and the capacity of the line based on the current flow data and the line capacity data among the power data. Visualization method. The method of claim 10, In the second step, the voltage and phase in each bus bar are represented by a cylinder and a specific figure, and the height of the cylinder is varied according to the magnitude of the voltage, and the phase is expressed by distinguishing the color of the specific figure. 3D dynamic visualization method of power system data. The method of claim 10, In the second step, the voltage and phase in each bus bar are represented by a cylinder and a specific figure, and the height of the cylinder is varied according to the magnitude of the voltage, and the phase is expressed by giving directions to the cylinder and the specific figure. 3D dynamic visualization method of the power system data, characterized in that. The method of claim 11 or 12, The specific figure is a three-dimensional dynamic visualization method of the power system data, characterized in that any one selected from rhombus, triangle, ellipse, cone. The method of claim 11 or 12, The phase is three-dimensional dynamic visualization method of the power system data, characterized in that divided into two parts of 0 ° ~ 180 ° and 181 ° ~ 360 °. The method of claim 10, In the third step, each line is represented by modeling in the shape of a tube, the tidal flow of each line is characterized by forming a band in the tube and the belt to move in response to the flow direction of the current. 3D dynamic visualization method of system data. The method of claim 10, In the third step, each of the lines is represented by modeling in the shape of a tube, the tidal flow of each line is characterized by forming a bracket (> and <) in the tube and the bracket in response to the flow direction of the tidal stream 3D dynamic visualization method of power system data. The method of claim 15, The capacity of each line is a three-dimensional dynamic visualization method of the power system data, characterized in that to express the overload of the capacity by at least one color of the line and the strip. The method of claim 16, The capacity of each line is a three-dimensional dynamic visualization method of the power system data, characterized in that to express the overload of the capacity by at least one color of the line and the angle. The method according to any one of claims 10 to 18, And further comprising a fourth step of visually representing and expressing three-dimensionally the voltage and phase on the bus line and the current flow and line capacity of the line according to the contents of the updated power data when the power data is updated. 3D dynamic visualization of data.