JPH08163796A - Plotting and display method of power-system monitor system - Google Patents

Abstract

PURPOSE: To simplify processing for additionaly displaying a hot-line and a dead-line on the display secreen of a power system diagram by attaching an attribute information section, in which monitor information as to whether or not every element is supplied with power is store, into the plotting data of every element. CONSTITUTION: When the attribute information section of a device 52R2 defiend by data 8 is 'on', the connection of a power line defined by the data 6 before of the device 52R2 is determined by viewing the FP card column of the data 8. Data lines 6 are retrieved, and the 'on' (a hot-line) or 'off' (a dead-line) of the attribute information section is checked. The power line of data 9 also represents the hot-line when the attribute information represents the hot-line, and the power line of the data 9 also represents the dead-line when the attribute information section represents the dead-line. The result of the judgment is written in the attribute information section of the data 9. In display processing, the attribute information of the data of a power line element is checked and the hot-line is displayed by red, and the dead-line is displayed by green.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system monitor system for registering a power system system diagram in a computer and for sequentially monitoring the operating status of the power system and displaying the system status on a display screen. In particular, it relates to improvement of the method of drawing / displaying a power system diagram.

[0002]

2. Description of the Related Art As is well known, large-scale power equipment is centrally monitored and managed by a computer. A power system diagram (an example of which is shown in FIG. 4) corresponding to the actual equipment is registered in the computer, and the system diagram is displayed on the display screen. Further, the actual operating condition of the equipment is monitored by a computer through various detection systems, and the monitor information is additionally displayed on the power system diagram of the display screen by using, for example, colors. If the staff member sees this screen, he or she can grasp the operation status of each part of the large-scale power equipment in a list.

As illustrated in FIG. 6, the electric power system diagram is composed of various electric power equipments and electric power lines connecting the respective equipments. In the example of FIG. 6, the disconnector 21 is connected from the power receiving end 1 by the power line <1>, and the disconnector 21 and the circuit breaker 3 are connected by the power line <2.
>, The circuit breaker 3 and the disconnector 22 are connected by a power line <3>, and the power line <4> is connected from the disconnector 22 to the subsequent stage. Such a system diagram is displayed, and the power lines <1>, <2>, <3>, and <4> are used to distinguish the active / dead state by the display color. If current is flowing through the power receiving end 1, the power line <
1> is the live line (otherwise dead line) and the power line <1
> Is a live line and the disconnector 21 is “ON”, the power line <2
＞ is the live line (otherwise dead line), and the power line <2>
Is a live line and the circuit breaker 3 is “ON”, the power line <3> is a live line (otherwise, a dead line), the power line <3> is a live line, and the disconnector 22 is “ON”. For example, the power line <4> is a live line (otherwise it is a dead line). Live lines are shown in red and dead lines are shown in green.

Conventionally, electric power system drawing information registered in a computer has a data structure shown in FIG. 5 and is described by a coordinate designation method. Set orthogonal coordinates on the screen and specify the position of each equipment and each power line by the coordinate value. As shown in (a), the equipment device arrangement data is a table in which coordinate values at which each device is arranged, each device number, and monitor information of the on / off state of each device correspond to each other. As shown in (b), the equipment device detailed data includes each device number, display pattern information of the device (information such as a device symbol diagram or symbol), and display color information. As shown in (c), the power line drawing data is a table in which the coordinate values of the start point and the end point of the power line correspond to the conditional expressions for determining whether to display the power line in the live line color or the dead line color. An example of this conditional expression data is shown in (d). This example is shown in FIG.
It corresponds to the system diagram of. That is, the conditional expression 1 of the power line <1> is “1” (live line if power is supplied to the receiving end), and the conditional expression 2 of the power line <2> is “the conclusion of the conditional expression 1 is“ 1 ”. , And if the device with number 1 is "ON", then "1""
Is.

The above data structure describes the drawing information of the entire target power system. The computer creates a power system diagram according to this drawing information and displays it on the display, and distinguishes the live line / dead line by the display color according to the actual operating status of the power system.

[0006]

As described above, the constituent elements of the power system are divided into the equipment and the power line, each of which is described by the coordinate designation method, and the conditional expression for displaying the live line / dead line of each power line. However, the conventional methods for describing each have the following problems. In the process of displaying the actual operating state of equipment on a monitor, the final result cannot be obtained in the determination of the conditional expression in the hierarchy below the power system unless it starts from the upstream part (power receiving end) of the power system diagram. Therefore, it takes more time to determine the conditional expression for the downstream element. Even if the power line on the way is broken (failed) and the power supply is cut off, the conditional expressions of the upstream elements must be again judged in order. Therefore, the load on the computer is heavy and the responsiveness of display is slow.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is a power system in which a process for additionally displaying a live line / dead line on a display screen of a power system diagram can be easily performed. It is to provide a method of drawing / displaying a monitor system.

[0008]

Therefore, in the present invention, each element is given a unique number in order to describe the connection relation of each element consisting of the equipment and power line constituting the power system diagram The number of the element connected to the element, the number of the element connected under the element A, the number of the element connected to the right of the element A, and the left of the element A The element number, the classification code that distinguishes whether the element A is a facility device or a power line, the coordinate value that indicates the display position of the element A, and "ON" when the element A is actually operated.
The attribute information section for storing the monitor information in the “off” state has a set of data structures, and the live / dead line of each power line is determined from the attribute information section and set in the attribute information section for the power line. The display color of each power line is changed according to the determination result of the live line / dead line of each power line.

In the above method, the attribute information section stores monitor information of a failure state of each element,
Depending on the failure information, the display of each element can be changed such as color or blinking.

[0010]

According to the method of the present invention, the drawing data of each element is provided with an attribute information section for storing monitor information as to whether or not power is being supplied to that element. To determine the live line / dead line, it is only necessary to search the attribute information part of the element connected on the element.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawing / display method of the present invention, each element is given a unique number when describing the connection relationship between each element consisting of equipment and power lines that make up a power system diagram, and FIG. The data of the structure shown in is created, and the power system diagram is expressed by the data group of this format. As shown in FIG. 1, the set of data for a certain element A includes the number of the element coupled above the certain element A (column FP) and the number of the element coupled below the relevant element A. And (UP column), the element A concerned
The number of the element connected to the right of the (RP column), the number of the element connected to the left of the relevant element A (LP column), and the classification that distinguishes whether the relevant element A is a facility device or a power line It is composed of a code, (CODE column), and detailed information of the element A.

When the element A is a facility device, the detailed information includes coordinate values designating a display position of the device,
The device number of the element A and "ON" during actual operation of the device
The attribute information section stores monitor information in the "off" state. When the element A is a power line, the element A is composed of coordinate values that specify the start point and the end point on the display of the power line, and an attribute information section that stores the determination result of the live line / dead line during the actual operation of the power line.

FIG. 2 shows an example of an electric power system diagram, and FIG. 3 shows the connection relation of each element data when this electric power system diagram is described by the data group of the structure (FIG. 1) described above.
Data 1 is the beginning of the system. The beginning of the system corresponds to the equipment marked with Δ in FIG. The equipment marked with Δ is connected to the equipment 89R21 by a power line. The power line is described by data 2. The power line of data number 2 is divided into left and right halfway. The branched power lines are described in data 3-1 and data 4-1 respectively. The power line defined by the data 3-1 is coupled to the device ESR2, and the power line defined by the data 4-1 is coupled to the device LA. The device ESR2 is described in data 3-2,
The device LA is described in data 4-2. Equipment ESR
2 is coupled to ground (described in data 3-4) via a power line (described in data 3-3). The equipment LA is also coupled to ground (described in data 4-4) via a power line (described in data 4-3). In this way, the definition and connection relationship of each element are represented in the dendritic list format by the data of each element. As for the other elements in FIG. 2 as well, as shown in FIG. 3, the connection relation is expressed in the same format as described above, and a detailed description thereof will be omitted here.

When the power system shown in FIG. 2 is actually operating, the "ON" and "OFF" states of each device in the system are monitored, and the monitor information of each device is stored in the attribute information section of each data. Write. Also, the live line / dead line for each power line is determined from the "on" and "off" information written in the attribute information part of the data group, and the determination result is written in the attribute information part of the data of each power line.

The determination of a hot line or a dead line of a certain power line is performed by the attribute information of "ON" or "OFF" of the device element connected in front of the power line. For example, a case where the hot line / dead line of the power line connecting the device 52R2 and the device 89R22 of FIG. 2 is determined will be described as a representative. In the data structure of FIG. 3, the power line to be determined here is defined by data 9. Looking at the FP column of this data 9, it can be seen that the device defined by the data 8 is connected in front of this power line. Then, the data 8 is searched to check whether the information written in the attribute information section is "ON" or "OFF". If this information is "off", no power is supplied to the power line, so the power line is a dead line, so "off" is written in the attribute information part of the data 9.

When the attribute information section of the device 52R2 defined by the data 8 is "ON", looking at the FP column of this data 8, the power line defined by the data 6 is connected in front of the device 52R2. Know that Then, the data 6 is searched, and the attribute information part is "ON" (live line) or "OFF" (dead line).
To find out. If this is a live line, the power line of data 9 is also a live line, and if this is a dead line, the power line of data 9 is also a dead line. This determination result is written in the attribute information part of the data 9. Then, in the display process, the attribute information part of the data of the power line element is checked, and the live line is displayed in red and the dead line is displayed in green.

It should be noted that monitor information of a failure (abnormal) state is written as an attribute information section of data (FIG. 1) of each element constituting the power system diagram, and the display of each element is colored or blinked depending on the failure information. By adding the change of, it is possible to display a useful electric power system diagram with more information on the display.

[0018]

According to the method of the present invention, the definition and connection relation of each element constituting the electric power system diagram is expressed in a dendritic list format by the data of each element, and the element is included in the drawing data of each element. Since an attribute information section that stores monitor information on whether or not power is being supplied is attached to the power line element, the attribute of the element connected above the element can be used to determine the live line / dead line of a certain power line element. Just search the information section,
The load on the computer is reduced and high-speed processing becomes possible. Further, since each element is connected by the data of the dendritic list structure, it is extremely easy to change the drawing data due to the change of the power system.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing the structure of drawing / display data to which the method of the present invention is applied.

FIG. 2 is a part of a power system diagram for explaining the method of the present invention.

FIG. 3 is a conceptual diagram showing a data structure of a dendritic list format according to the present invention corresponding to the power system diagram of FIG.

FIG. 4 is a diagram showing an entire example of a power system diagram.

FIG. 5 is a conceptual diagram showing a structure of conventional drawing / display data.

FIG. 6 is a part of a power system diagram for explaining a conventional method.

[Explanation of symbols]

 1 Power receiving end 3 Circuit breaker 21 Disconnector 22 Disconnector

Claims (2)

[Claims] 1. When describing the connection relationship between each element consisting of equipment and power lines that make up a power system diagram, each element is given a unique number, and the number of the element that is connected on top of a certain element A , The number of the element connected below the element A, the number of the element connected to the right of the element A, the number of the element connected to the left of the element A, and the element A is A classification code that distinguishes between equipment and power lines,
The coordinate value indicating the display position of the element A and the attribute information section for storing the monitor information of the “ON” and “OFF” states of the element A during the actual operation have a data structure as one set, and each power line is activated. Electric power characterized by determining the line / dead line from the attribute information section and setting it in the attribute information section for the power line, and changing the display color of each power line according to the determination result of the live line / dead line of each power line. How to draw / display system monitoring system. 2. The attribute information part stores monitor information of a failure state of each element, and the display of each element is changed by a color, blinking or the like according to the failure information. How to draw / display the described power system monitor system.