KR20160033975A - Visualization apparatus for the single line diagram of distribution systems - Google Patents

Abstract

The present invention relates to a one line diagram based distribution system visualization apparatus. The one line diagram based distribution system visualization apparatus includes: a fault section detection unit (400) detecting a fault section from multiple fault indicators (3); an enclosing calculation unit (500) calculating multiple node coordinate values on a one line diagram and arbitrary coordinate values for enclosing between the calculated node coordinate values; and a load transfer location and direction calculation unit (600) calculating a node coordinate value on the one line diagram corresponding to a regular open point and measuring a direction of a load transfer. Therefore, an distribution system operator can easily distinguish between the fault section and an outage section generated on the a distribution line on the one line diagram.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visualization apparatus for a single-

The present invention relates to a power line visualization apparatus based on a single line drawing, and more particularly, to a power line visualization apparatus having a display section for calculating a failure section, an electrostatic section, a position and a direction of a load changeover on a distribution line, The present invention relates to a power line visualization apparatus based on a single line diagram in which an operator can easily identify a fault section, an electrostatic section, and a position and a direction of a load changeover.

Generally Distribution control system (DAS) or distribution management system (DMS) is operated in the central control room at the remote site for monitoring and controlling the power system to distribution lines.

Here, the distribution automation system or the distribution management system displays the distribution system diagram and the individual disconnection diagram of each circuit to monitor and control the power system of the distribution system, and the distribution system is implemented by using a geographic information system (GIS) The distribution facility is shown on the topographical map, and it is mainly used for the purpose of locating the distribution facility. The disconnection diagram for each line is shown as a line and a node using the tree structure. .

Meanwhile, the disconnection diagram for each circuit is shown in a tree structure of the distribution line and the equipments, and a technique and algorithm for generating it are disclosed in academic papers and the like. ("Automatic generation of disconnection per line by power distribution line", Soo Chwan Son, Sung Il Il, May 2010) has been proposed.

Korean Patent Laid-Open Publication No. 2013-0052891 (2013. 05. 23. 23) discloses a system for tracking a distribution line using system information of a geographic information system (GIS), and a tree including facilities included in the distribution line as a node A node tracking unit 11 that configures a node; A node arrangement (14) for determining the level of nodes using the tree and generating a single line diagram in which the nodes are arranged according to the level; And a rearrangement unit 15 for rearranging the nodes on the disconnection diagram using the geographical information system location information (refer to FIG. 1).

However, the above-mentioned technology in the above-mentioned academic paper and the technology disclosed in the Korean Patent Publication disclose only a technique for generating a disconnection diagram for each line, and only a fault section and an interruption section Monitoring of the outage section and load transfer, ie visualization devices, has not been disclosed at all, and the existing line-by-line single line diagram shows that the operator of the power distribution system in the remote central control room can monitor the fault section, The position and direction can not be recognized promptly, and therefore, there is a problem that quick recovery can not be achieved.

Therefore, the present invention has a completely new visualization means for calculating and displaying the failure section, the electrostatic section, the load transfer position and the direction on the single line drawing the problem of the single line drawing by the conventional distribution line, And the recovery can be carried out by using the visualization system.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a display unit for calculating a failure section, an electrostatic section, and a position and a direction of a load transfer on a distribution line and displaying the broken line on a broken line, And it is an object of the present invention to provide a power line visualization apparatus based on a single line diagram in which a power distribution system operator can easily identify a fault section, an electrostatic section, and a position and a direction of a load change.

According to an aspect of the present invention, there is provided a power line visualization apparatus based on a single line diagram including a topology analysis unit (100), a tree structure unit (200), and a tree rearrangement unit (300) A fault section detector 400 for detecting a fault section from a plurality of fault indicators 3 installed in the breaker CB 1 installed in each section and the switches G and 2; Calculating a plurality of node coordinate values on a disconnection diagram corresponding to an outer switch of a healthy static section generated due to isolation of a fault section detected through the fault section detection section and a planned power failure, An envelope calculation unit (500) for calculating arbitrary coordinate values for encapsulation between values; Calculating node coordinate values on a single line diagram corresponding to a normally open point for load transfer of a healthy static section generated due to isolation of a fault section detected through the fault section detection section and a planned power failure, And a load change position and direction calculation unit (600) for calculating the direction of the load change according to the level of the node corresponding to the normally open point; The display unit 700 further includes a display unit 700 for displaying data detected or calculated through the failure section detection unit, the enclosure calculation unit, the load transfer position and the direction calculation unit on a single line diagram so that the power distribution system operator can easily identify the data. A power line visualization apparatus based on a single line is provided.

Preferably, the encircling calculation unit 500 may be configured so that any one of a linear type or a curved type may be selected as the encompassing of a plurality of node coordinate values on the disconnection diagram corresponding to the outer circuit breaker of the healthy electrostatic section generated in the distribution line And calculating arbitrary coordinate values for the surrounding.

Preferably, the display unit 700 includes a failure section display unit 710 that receives data of the failure section coordinate value detected by the failure section detection unit and displays a failure section on a broken line, (720) which receives data of coordinate values of a plurality of nodes and arbitrary points calculated from the load transfer position and direction calculation unit and displays the area of the static area on a broken line, And a load change position and direction display unit 730 for displaying the position and direction of the load change on the broken line based on the data of the coordinates and direction values of the nodes.

Preferably, the power line visualization apparatus based on the disconnection diagram further includes an initial coordinate value and a final coordinate value for the change process of the node whose position is changed on the disconnection diagram when the connection relation (or topology) A dynamic display calculation unit 810 for receiving the values of the intermediate point coordinate values and the final point coordinate values calculated by the dynamic display calculation unit, And a dynamic display unit 800 having a dynamic display unit 820 for dynamically displaying a change process.

,

)이고 최종 좌표값이 (

,

)이며 중간과정이 총 M번 표시될 경우 중간과정에서의 노드의 중간 좌표값의 수식은 (

,

)(이때, 각 단계를 나타내는 변수 k는 0에서 M까지 1씩 증가)인 것을 특징으로 한다.Preferably, the dynamic display calculation unit 810 determines that the initial coordinate value is (

,

) And the final coordinate value is (

,

) And the intermediate process is displayed M times total, the formula of the intermediate coordinate value of the node in the intermediate process is (

,

) (In this case, the variable k representing each step is incremented by 1 from 0 to M).

Preferably, the disconnection-based power distribution system visualization apparatus displays an arc length between a node and a node on a disconnection diagram in proportion to a distance of a line section between power facilities such as a breaker, a switch, and a branch point installed in the power distribution line And a gamma-proportional display unit (900).

INDUSTRIAL APPLICABILITY According to the single line drawing-based distribution system visualization apparatus of the present invention, the following effects can be obtained.

1) The display section for calculating the failure section and the power failure section of the power distribution line and displaying the power failure section on the power line can be easily distinguished from the failure section and the power failure section generated on the power distribution line on the single line diagram.

2) The display unit for calculating the position and direction of the load change for restoration of the power failure and displaying it on the single line diagram allows the power distribution system operator to intuitively recognize the power failure recovery execution plan, thereby facilitating the operation of the power distribution system .

3) Dynamic display unit that dynamically displays the connection relationship (topology) or the location of switchgear on the disconnection diagram of the distribution line is constructed so that the operator of the distribution system can easily identify the change process of the distribution line together with the intermediate process can do.

1 is a diagram illustrating a conventional distribution system line drawing system and method.
2 is a block diagram showing the entire configuration of a power line visualization apparatus based on a single line diagram according to a preferred embodiment of the present invention.
3 is a view showing a display unit visualized on a single line drawing by a power distribution line according to a preferred embodiment of the present invention
4 (a) and 4 (b) illustrate a single grouping type and a multiple grouping type of the wraparound display unit of the display unit according to the preferred embodiment of the present invention
FIG. 5 is a diagram showing a tree (single line diagram) showing the level of a node for explaining a load transfer direction of a load transfer position and direction calculation unit according to a preferred embodiment of the present invention; FIG.
6 (a) to 6 (d) are diagrams showing the dynamic display of the first, intermediate, and final single-line diagrams of the dynamic display unit according to the preferred embodiment of the present invention
7 (a) and 7 (b) show a single line diagram to which a positive proportional display unit according to a preferred embodiment of the present invention is applied,

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. Although the same reference numerals are used in the different drawings, the same reference numerals are used throughout the drawings. The prior art should be interpreted by itself. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

First, prior to explaining the core technical construction means of the power line visualization apparatus based on the single line diagram according to the preferred embodiment of the present invention, in order to monitor and control the power line in the conventional power line, In general, only distribution facilities such as distribution lines, circuit breakers (CB) and switches (G) are simply displayed on the distribution automation system (DAS) or the distribution management system (DMS) It is a totally new way of visualization of distribution line based on single line which is devised to solve the problem of limitation of visualization of disconnection by distribution line.

2 to 7, the core technical construction means of the power line visualization apparatus based on the single line diagram according to the preferred embodiment of the present invention includes a topology analysis unit 100, a tree structure unit 200, A load section position and direction calculation section 600, a display section 700, a dynamic display section 800, and a positive proportion display section 900. The failure section detection section 400 includes a failure section detection section 400, an envelope calculation section 500,

Referring to FIG. 2, the topology analysis unit 100, the tree structure unit 200, and the tree rearrangement unit 300 are known in the art as a known technology, And the collision avoidance algorithm is applied as a constituent means of the sorting algorithm and the collision avoidance algorithm of the autonomous generation algorithm for each line,

The topology analysis unit 100 analyzes the connection relationship between the distribution line, the post-connection line, and the power facility, that is, the topology, and outputs the analyzed topology to the distribution system database DB, As shown in Fig. The distribution system database (DB) 20 stores data such as a line section to a power distribution line, a power supply line, and a switch.

The tree configuration unit 200 is a configuration unit for generating a disconnection diagram based on a topology of a distribution line analyzed through the topology analysis unit 100 and a distribution system database. It is a ternary tree using a feature that has up to three branch lines in one switch. It is modeled as an arc with a switch and a node as a node and a line section as an arc.

The tree reordering unit 300 rearranges the disconnection degree by using a sorting algorithm and a collision avoiding algorithm to eliminate a biased phenomenon and an overlapping phenomenon in the tree generated through the tree constituting unit, to be.

The nodes and arcs of the disconnection diagram of the tree generated through the topology analysis unit 100, the tree structure unit 200, and the tree rearrangement unit 300 may be stored in the distribution system database DB , ≪ / RTI > 20).

Referring again to FIG. 2, the fault section detection section 400 includes a breaker CB 1 provided for each section of the distribution line, and a plurality of fault indicators 3 installed in the switches G and 2, And a configuration section for detecting a fault section from the terminal apparatus.

Here, the detected fault section is stored in the distribution grid database (DB) 20 so that the broken line corresponding to the fault section of the distribution line can be visualized on the broken line through the display section 700 described later Loses.

Referring to FIG. 2, the encirclement calculation unit 500 may include a failure detection unit for detecting an isolation of a failure zone detected through the failure zone detection unit, and a solid line diagram corresponding to an outer- Means for calculating a plurality of node coordinate values and calculating arbitrary coordinate values for a wraparound between the plurality of calculated node coordinate values, wherein the calculated node coordinate values and any coordinate values are stored in the distribution system database (DB, 20).

In this case, the surround computing unit 500 may select either a linear or a curved type of enclosure between a plurality of node coordinate values on a disconnection diagram corresponding to an outer switch of a healthy electrostatic field generated in the distribution line, Any coordinate values for the group are calculated.

Meanwhile, the arbitrary coordinate values refer to coordinate values located between a node and a node for connecting and surrounding a plurality of nodes based on a plurality of the node coordinate values calculated through the surrounding calculator, Any coordinate values can be obtained by using the corresponding function formula according to the type of encirclement of the mold.

For example, in the case of the curved wraps, a plurality of the coordinate values of the nodes calculated through the surrounding calculation unit are input, and arbitrary coordinate values of the curves between the node and the node are subjected to curve fitting and a cubic function Cubic spline, which allows the arbitrary coordinate values to be calculated according to a plurality of node coordinate values pre-programmed in the envelope calculation unit.

Here, a curve fitting is a method of calculating and calculating a curve suitable for a point scattered on a plane by a curve fitting, and a cubic spline is a method of interpolating a point at several points And a functional value between the points based on a given function value is obtained by using a cubic function, which is a known technique and will not be described in detail.

Also, in the case of the linear envelope, arbitrary coordinate values connecting a straight line between the node and the node can be easily calculated according to a plurality of the node coordinate values given by the interpolation method.

Meanwhile, the envelope calculator is configured to display the envelope display unit 720 of the display unit 700, which will be described later, by surrounding the electrostatic field, and a single grouping type (single- grouping type, or a plurality of node coordinate values on a single line corresponding to an outer switch of the electrostatic field so as to be displayed as a multi-grouping type in which at least two are surrounded and displayed, Any coordinate value may be calculated (see FIG. 4).

Referring again to FIG. 2, the load transfer position and direction calculation unit 600 calculates the load transfer position and direction based on the isolation of the failure section detected through the failure section detection unit and the load switching and calculating the direction of the load change according to the level of the node corresponding to the normally open point, the method comprising the steps of: calculating the node coordinate value on the single line diagram corresponding to the normally open point for transfer, Are stored in the distribution system database (DB, 20).

Here, the term "load transfer" refers to switching the part or all of the load to another source by inputting the always-open point. As a result of occurrence of a failure section and a static section in the distribution line, Or if it is not possible to supply electricity from the power distribution substation, it switches the electricity source of the load to another electric source installed in the connected line to the distribution line connected to the load.

With the introduction of the Distribution Automation System (DAS), it became possible to remotely monitor and control switchgears scattered in distribution lines via remote terminal units (FRTUs) It is possible to issue operation commands for fault isolation and sound load transfer.

Therefore, the position and direction of the load transfer are important elements for establishment and identification of the power failure recovery execution plan in the operation of the power distribution system. Therefore, the load transfer position and the direction display unit 730 of the display unit 700, The node coordinate value and the direction data on the single line diagram corresponding to the load transfer normally open point are calculated in the load transfer position and direction calculation unit 600. [

On the other hand, the calculation of the direction data of the load change is determined according to the level of the node corresponding to the load change on the disconnection diagram. When the level of the node is an odd number such as 1, The transfer direction is from left to right on the single line drawing. If the level is even, such as 2,4,6,8, ...., it can be up or down, depending on which tag is diverted when it is diverged from the upper level. If it is connected to the tag that branches to the right (clockwise), the downward direction is the load transfer direction, and when branched to the left (counterclockwise), the upward direction is the load transfer direction (see FIG.

2 and 3, the display unit 700 displays the data detected or calculated through the fault section detection unit 400, the enclosure calculation unit 500, the load transfer position and direction calculation unit 600, Is displayed on the single line diagram (10) so that the power distribution system operator can easily identify the data. The data stored in the power distribution system database (DB) 20 is collected and visualized on a single wire diagram to be displayed.

The display unit 700 includes a failure section display unit 710 that receives data of the failure section coordinate value detected by the failure section detection unit and displays a failure section on a broken line, A wraparound display unit 720 for receiving data of coordinate values of a plurality of nodes and arbitrary points and displaying an area of the static section on a broken line and displaying a plurality of nodes calculated from the load transfer position and direction calculation unit, And a load change position and direction display unit 730 for displaying the position and direction of the load change on the broken line.

” 와 같은 기호를 단선도 상에 시각화하여 배전계통 운영자가 고장구간의 식별이 용이하도록 한다.The failure section display unit 710 displays,

"Is visualized on the single line diagram so that the operator of the power distribution system can easily identify the fault section.

The wraparound display unit 720 visualizes the linear or curved surroundings of the static section as a single-grouping type or a multi-grouping type on the single wire drawing, So that the linear or curved surroundings, the single grouping type, and the multiple grouping type are described in detail in the above-described surround calculation unit, and thus the detailed description thereof will be omitted. Meanwhile, the single grouping type and the multiple grouping type can be visualized as shown in FIG.

The load transfer position and direction display unit 730 visualizes the position and direction of the load transfer on the broken line with a symbol such as an arrow so that the distribution system operator can easily identify the position and direction of the load transfer.

Referring to FIG. 2 and FIG. 6, the dynamic display unit 800 may be configured such that, when a line change or a switch position changes to a distribution line for restoration or restoration of electric power, (Or topology) to a distribution line or a first coordinate value and a final coordinate value for a change process of a node whose position is changed on a disconnection diagram when changing the position of the switch, A dynamic display calculation unit 810 for calculating the position and the position of the arc and the position change process of the node and the arc on the disconnection diagram by receiving the data of the midpoint coordinate value and the final point coordinate value calculated from the dynamic display calculation unit A dynamic display unit 820 is provided.

In other words, the dynamic display unit 800 gradually visualizes and displays the intermediate process of the single line diagram changed by adding the animation effect when the single line is changed from the existing single line diagram, and the distribution system operator monitors the same That is, where the power symbol has moved in the changed single line diagram.

The dynamic display calculation unit 810 of the dynamic display unit calculates the initial coordinate value, that is, the coordinate value of the existing node and the final coordinate value, i.e., the final coordinate value, based on the coordinate values of the nodes of the single line diagram stored in the distribution grid database 20. [ The coordinate values of the changed node can be easily calculated, and the intermediate coordinate values can be calculated based on the given initial coordinate value and final coordinate value.

,

)이고, 최종 좌표값이 (

,

)이며 동적표시를 위한 중간과정이 총 M번 표시될 경우 임의의 중간과정에서의 노드의 중간 좌표값은 (

,

) 으로 계산될 수 있고 이때 각 단계를 나타내는 변수 k는 0(최초상태)에서 M(최종상태)까지 1씩 증가하며, 구간 즉 아크는 노드와 노드를 연결하므로, 트리의 연결관계에 따라, 위에서 계산된 각 노드의 좌표를 연결하는 것으로 도시될 수 있다.As an example, if the initial coordinate value is (

,

), And the final coordinate value is (

,

) And the intermediate process for dynamic display is displayed M times total, the intermediate coordinate value of the node in any intermediate process is (

,

), And the variable k representing each step is incremented by 1 from 0 (initial state) to M (final state). Since the interval or arc connects nodes and nodes, And connecting the coordinates of each calculated node.

7, the power line visualization apparatus based on the single line diagram of the present invention is characterized in that a visual system for visualizing a power line of a power line, such as a breaker installed in a power distribution line, a switch, And the arc proportional display unit 900 for displaying the arc length between the nodes. The conventional single line diagram shows that the arc length between the node and the node is constantly long regardless of the line interval of the actual distribution line And is configured to solve the problem that the length of the actual line section can not be identified only by the single line drawing. Thus, the node and the node on the single line in proportion to each line section of the actual power distribution line through the positive proportion display section 900, The arc length between the lines can be displayed so that the operator of the power distribution system can easily compare the crowns of the respective line sections by only one wire drawing.

As described above, the power line visualization apparatus based on the single line diagram according to the preferred embodiment of the present invention includes the display unit for calculating the failure period and the power failure period of the power line and displaying the power line on the power line, And a display unit for calculating the position and direction of the load change for restoration of the power failure and displaying the calculated position and the direction of the load change on the disconnection diagram, It can intuitively recognize the plan and can easily operate the distribution system.

In addition, since the dynamic display unit that dynamically displays the connection relationship (topology) to the distribution line or the position of the switch when the position of the switch is changed on the disconnection diagram by the distribution line is configured, the distribution system operator can easily identify the change process of the distribution line, There is an effect that can be done.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: Breaker 2: Actuator
3: Fault indicator 10: Disconnection by power line
100: topology analysis unit 200:
300: Tree rearrangement unit 400: Fault section detection unit
500: Surrounding calculation section
600: Load transfer position and direction calculation unit
700: Display section 710: Fault section display section
720: Surrounding display portion
730: Load transfer position and direction indicator
800: Dynamic display unit 810: Dynamic display calculation unit
820: Dynamic display display unit 900: Positive proportional display unit

Claims (6)

In a power line visualization apparatus based on a single line diagram in which a topology analysis unit (100), a tree construction unit (200) and a tree rearrangement unit (300)
A fault section detector 400 for detecting a fault section from a plurality of fault indicators 3 installed in the breaker CB 1 installed in each section of the distribution line and the switches G and 2, ;
Calculating a plurality of node coordinate values on a disconnection diagram corresponding to an outer switch of a healthy static section generated due to isolation of a fault section detected through the fault section detection section and a planned power failure, An envelope calculation unit (500) for calculating arbitrary coordinate values for encapsulation between values;
Calculating node coordinate values on a single line diagram corresponding to a normally open point for load transfer of a healthy static section generated due to isolation of a fault section detected through the fault section detection section and a planned power failure, And a load change position and direction calculation unit (600) for calculating the direction of the load change according to the level of the node corresponding to the normally open point;
The display unit 700 may further include a display unit 700 for displaying data detected or calculated through the failure section detection unit, the enclosure calculation unit, the load transfer position and the direction calculation unit on a single line diagram so that the power distribution system operator can easily identify the data, Wherein the power line visualization apparatus is a single line-based power line visualization apparatus.
The method according to claim 1,
The enclosure computing unit 500 may be configured so that the enclosure between the plurality of node coordinate values on the single line diagram corresponding to the outer switch of the healthy electrostatic section generated in the distribution line is selected from a linear or a curved system, And calculates arbitrary coordinate values.
The method according to claim 1,
The display unit 700 includes a failure section display unit 710 that receives data of the failure section coordinate value detected by the failure section detection unit and displays a failure section on a broken line,
A wraparound display unit 720 for receiving data of coordinate values of a plurality of nodes and arbitrary points calculated from the wraparound calculation unit and displaying the static discharge interval on a broken line,
And a load switching position and direction display unit 730 for displaying the position and direction of the load change on the broken line by receiving the data of the coordinate value and direction value of the plurality of nodes calculated from the load change position and direction calculation unit Wherein the power line visualization apparatus is a single line-based power line visualization apparatus.
The method according to claim 1,
The power line visualization apparatus based on the disconnection diagram receives the initial coordinate value and the final coordinate value for the process of changing the node whose position is changed on the disconnection diagram when the connection relation (or topology) to the power distribution line or the position of the switch is changed A dynamic display calculation unit 810 for calculating an intermediate coordinate value,
And a dynamic display unit 820 for receiving the data of the intermediate point coordinate value and the final point coordinate value calculated from the dynamic display calculation unit and dynamically displaying the position change process of the node and the arc on the broken line, (800) is further included in the power line visualization apparatus.
5. The method of claim 4,
The dynamic display calculation unit 810 determines whether the initial coordinate value is (

,

) And the final coordinate value is (

,

) And the intermediate process is displayed M times total, the formula of the intermediate coordinate value of the node in the intermediate process is (

,

) (Wherein the variable k representing each step is incremented by 1 from 0 to M).
The method according to claim 1,
The power line visualization apparatus based on the disconnection diagram has a proportional proportion table which displays an arc length between a node and a node on a disconnection diagram in proportion to a distance of a line section between power facilities such as a circuit breaker, Wherein the power supply system further comprises a cabinet (900).

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