JPH09140060A - Wide area power system information network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit power system facility information and power system status information over a wide range by providing power system information transmitting means for power system operation system and power system display information storage means and power system information display means to the engineering work stations. SOLUTION: Power system information transmitting means 37 has the functions of reading the results of power system information processing and transmitting them to LAN 7 and the like. The information system 5 (EWS) receives power system information and power system information processing results from power system information transmitting means 37 through the LAN 7 by means of power system information receiving means 51, stores them in power system display information storage means 52, and power system information display means 53 as reading and displaying means 53 for displaying on CRT 6 for example. In consequence, it becomes possible to construct a power system information wide area network system for easily viewing the information of the power system operation system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system operating system for controlling power system power supply, supervisory control, power distribution, etc., power system facility information held by this system, and information collected and edited from the power system. The present invention relates to an electric power system information wide area network system in which an information system for receiving information and outputting it to a man-machine interface device is coupled via a network.

[0002]

2. Description of the Related Art Information relating to a power system is also required in technical departments, sales departments, and clerical departments other than the operator of the power system operating system, but this information is used by the operator's console and command room. It was output only to the system monitoring panel installed at. Power system power supply tasks, monitoring control tasks, and power distribution tasks have traditionally been performed by process computers with excellent fault-tolerant performance.

The operator displayed the power system information collected and edited by the process computer on a display device connected to the process computer. FIG. 5 is a diagram illustrating a conventional technique. In the figure, reference numeral 1 denotes a facility group of a power system, which includes a transmission line, a bus bar, a transformer, a switch, and a relay for detecting whether these facilities are in a charged state or a power failure state.

Reference numeral 2 is an information transmitting means for transmitting information indicating the state of the power system 1. Reference numeral 3 is an electric power system operation system constituted by a process computer, and is an information transmission means 2
Information from the switches, circuit breakers,
Power system equipment information storage means that stores information such as railroad lines
An electric power system information collecting means 32 for saving the electric power system state information based on 31 and an electric power system information saving means 33 for saving the electric power system state information collected by the electric power system information collecting means 32.
The electric power system information processing means 34, which reads the electric power system information, performs the system accident judgment, the charging / discharging judgment, the power flow calculation, and stores the electric power system information processing result storage means 35, and the information stored in 33 and 35. CRT4 which is a reading display device
The power system information display means 36 for outputting to.

[0005]

In the case of the above conventional apparatus,
When an attempt was made to expand the number of display devices that could be connected to the process computer to provide information to parties other than the grid operation system department, there were restrictions on the number of display devices that could be added and the distance between the display devices and the process computer. Information can only be provided to the place. Further, the single-line connection diagram for transmitting the state of the power system output to the display device cannot be understood without specialized knowledge.

The present invention has been made in view of the above circumstances, and is not restricted by the restrictions on the number of display devices connectable to the process computer and the distance between the display device and the process computer, and the process computer stores the data in many places. It is an object of the present invention to provide a power system information wide area network system capable of transmitting widely used power system facility information, power system status information, and the like.

[0007]

A power system information wide area network system according to claim 1 of the present invention is a power system information collecting unit for collecting status information of a power system via an information transmitting unit, and a power system. An electric power system information storage unit that stores the collected electric power system state information based on facility information, an electric power system information processing unit that reads the stored information and performs arithmetic processing in the electric power system, and stores the processing result. A power system information processing result storage means, a local area network (hereinafter, referred to as LAN) that reads the processing result, and a wide area network (hereinafter, WA) that connects the LANs.
(Hereinafter referred to as “N”), a power system operating system including a power system information transmitting unit for transmitting via N, a power system information receiving unit that receives information from the power system information transmitting unit, and the received information is stored. The information system comprises a power system display information storage unit for storing the power system information and a power system information display unit for displaying the stored information on the display unit.

A power system information wide area network system according to [Claim 1] of the present invention takes in relay information for detecting the presence or absence of a switch or a voltage which is a facility of the power system by a power system operating system, and based on them, The results of line accidents, bus accidents, transformer accident judgments, and power failure area judgments when an accident occurs are saved.

Then, the information is converted into a predetermined data format which has been determined, and LAN transmission means is used for LAN.
Send to At engineering work citations (hereinafter referred to as EWS) that make up the information system, LA
The power system information is read from N and output to the display device by the power system information output means.

A power system information wide area network system according to [claim 2] of the present invention is [claim 1]
The power system monitoring system side includes means for converting the calculation result into a specific data format and means for transmitting the converted data to the information network, and the information system side takes in the received information of the specific data format. A means for outputting was provided.

In the power system information wide area network system according to [Claim 3] of the present invention, in [Claim 1] or [Claim 2], the information system side issues a power system information selection request via an input device. A means for inputting is provided, and the power system monitoring system side is provided with means for converting requested data into a specific data format and transmitting it.

In the electric power system information wide area network system according to [Claim 4] of the present invention, in [Claim 1] or [Claim 2], there is a change in transmission of the calculation result on the electric power system monitoring system side. It is configured to send only information to the information system side.

A power system information wide area network system according to [Claim 5] of the present invention is [Claim 1].
When there are a plurality of information systems, the first information system is provided with the power system display information storage means, and the other information systems not having the storage means fetch and output the data of the power system from the first information system. Configured as

[0014]

1 is a block diagram showing an embodiment of a power system information wide area network system according to the present invention. In FIG. 1, the same parts as those in FIG. What is newly added in this embodiment is the power system information transmission means 37 and the information system 5.
It is. The electric power system information transmission means 37 has a function of reading the electric power system information processing result and transmitting it to a LAN or the like.

On the other hand, 5 is an EWS which constitutes an information system.
The power system information transmission means 37 through the LAN 7.
The electric power system information and the electric power system information processing result from the electric power system information receiving means 51 are received and stored in the electric power system display information storage means 52. And means 53.

FIG. 2 is a flow chart showing the processing in the present invention. This figure consists of steps S1 to S6. In step S1, a process of fetching information from the power system is executed. In step S2, a process of saving the data captured in step S1 is executed.

In step S3, a process of reading the data stored in step S2, making a power system accident determination, and storing the result is executed. In step S4, a process of reading the data stored in step S2 and the data stored in step S3 and transmitting the data to the LAN is executed.

In step S5, LA is executed in step S4.
A process of fetching the power system information and the accident determination result sent through N and storing them in the power system display data storage unit is executed. In step S6, a process of displaying power system information based on the information acquired in step S5 is executed.

According to the above-described embodiment, the information system 5 including the LAN 7 and the EWS is added to the existing power system operation system, and the power system information transmission means 37 is provided in the power system operation system 3. It is possible to display the system 5 without overlapping the power system facility information storage means, the power system information storage means, and the power system information processing means.

Another embodiment corresponds to [claim 3], and its configuration is shown in FIG. The characteristic part of this embodiment is that a screen input transmission means 54 for taking in a request from the screen of the information system 5 and transmitting it to the LAN is added.

In the above, the information system 5 merely received and displayed the power system information and the accident determination result sent by the power system operating system 3 via the LAN, whereas the light pen, the keyboard, the mouse, etc. were displayed. The power system information selection request from the input device 62 having the data input means 61 is input to the screen input transmission means 54 of the information system 5, and the power system information selection request from the screen input transmission means 54 is supplied to the power via the LAN. This is to add a function to send to the grid operation system 3.

On the other hand, the power system operation system 3 sends the requested power system information to the information system 5 via the LAN and displays it on the CRT 6 of the display device. As a result, arbitrary information can be requested and displayed from the CRT connected to the information system.

As another embodiment, which corresponds to [Claim 4], the above-described embodiment sends all the power system information and the accident determination result collected by the power system operating system. In this embodiment, only the information changed from these information is transmitted to the information system.

In this embodiment, the power system information collecting means 32
In, the information stored in the previous time is compared with the information stored in this time, and the changed information is sent to the power system information transmitting means 37, so that only the changed information can be sent to the information system 5. This makes it possible to reduce the amount of data transmitted to the LAN and reduce the load on the power system information wide area network system.

Another embodiment corresponds to [Claim 5], and the configuration thereof is shown in FIG. In the case where there are a plurality of information systems, the above-described embodiment is step by step to display the power system information and the power system information processing result in the power system information transmitting means 37.
However, in the present embodiment, the second and subsequent information systems 8 are stored in the power system display information storage means 52 stored in the first information system 5. Information is sent to the LAN and the information is displayed.

In this embodiment, the power system information transmission means (LAN transmission means) 55 is added to the information system 5 so that the other information system 8 can operate in the power system more than the information system 5 which stores the power system display information. You can receive information. As a result, the power system operation system only needs to send data to one information system, so that the load on the power system operation system can be reduced.

[0027]

As described above, according to the present invention, LAN and EWS are added to the existing power system operation system,
For the power system operation system, power system information transmission means E
By providing the power system information display means and the power system information storage means in the WS, it is possible to construct a power system information wide area network system in which the information of the power system operation system that has been conventionally operated can be easily viewed. Becomes

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of a power system information wide area network system according to the present invention.

FIG. 2 is a flowchart showing the processing content of FIG.

FIG. 3 is a configuration diagram showing another embodiment of a power system information wide area network system according to the present invention.

FIG. 4 is a configuration diagram showing still another embodiment of a power system information wide area network system according to the present invention.

FIG. 5 is a configuration diagram for explaining a conventional technique.

[Explanation of symbols]

 1 power system 2 information transmitting means 3 power system operating system 4,6 CRT 5,8 information system 7 LAN 31 power system facility information storing means 32 power system information collecting means 33 power system information storing means 34 power system information processing means 35 power System information processing result storage means 36 Power system information display means 37, 55 Power system information transmission means 51, 81 Power system information reception means 52, 82 Power system display information storage means 53, 83 Power system information display means 54 Screen input transmission means

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area H04L 12/437

Claims (5)

[Claims] 1. A power system information collecting means for collecting power system status information via an information transmitting means, and a power system information storing means for saving the collected power system status information based on power system facility information. And a power system information processing unit that reads the stored information and performs arithmetic processing in a power system,
The power system information processing result storage means for storing the processing result, and the processing result is read and transmitted via a local area network (hereinafter, referred to as LAN) or a wide area network (hereinafter, referred to as WAN) that connects the LAN. An electric power system operation system including: an electric power system information transmission unit for receiving electric power system information, a power system information receiving unit that receives information from the electric power system information transmitting unit, an electric power system display information storage unit that stores the received information, and An electric power system information wide area network system comprising an information system including electric power system information display means for displaying stored information on a display means. 2. The power system monitoring system side comprises means for converting the calculation result into a specific data format and means for transmitting the converted data to an information network, and the information system side receives the specific data format. 2. The power system information wide area network system according to claim 1, further comprising means for taking in and outputting the information of 1. 3. The information system side is provided with means for inputting a power system information selection request via an input device, and the power system monitoring system side is provided with means for converting the requested data into a specific data format and transmitting the data. The electric power system information wide area network system according to claim 1 or 2, further comprising: 4. The power system information wide area network system according to claim 1 or 2, wherein the power system monitoring system side transmits only information that has changed in transmitting the calculation result to the information system side. . 5. When there are a plurality of information systems, a power system display information storage means is provided in the first information system, and the other information system without the storage means is the data of the power system from the first information system. The electric power system information wide area network system according to claim 1, wherein