JPH0341010B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a method for determining a switch operation procedure for a power system, and more particularly to a method for determining a switch operation procedure in consideration of the expansion or modification of power equipment. In order to ensure proper and efficient operation of power systems and equipment and stable power supply, decisions are made to stop and use various types of equipment, and based on these decisions, appropriate switches and line breakers are installed. The closing and opening operations of the switch are performed manually by an operator or automatically using a computer or the like. but,
Electric power systems and equipment are expanding and becoming more complex due to increased demand for electricity, and conventional switch operation methods are no longer appropriate. In other words, even if the operation method uses a centralized substation monitoring and control system that uses a power calculator, operators cannot grasp the manual operation because the scale of centralization will expand as equipment is expanded. As the number of switches that must be operated continues to increase and operations become more complex, it takes a great deal of effort for operators to accurately grasp the status of the power system and equipment and operate the switches accurately and quickly. accompanied by great difficulties. The automatic operation method, which aims to ensure accurate operation of power equipment in place of operations by operators, mainly uses a computer as the control center to automatically operate the switch, but it is not necessary to add or change power equipment. It is very difficult to change the operating procedure program. For example, in conventional automatic operation devices, the switch to be operated and the confirmation procedure necessary for operation are fixed in the equipment as an operation sequence, and the switch is operated while referring to it. If added or changed at any time,
Not only must the operation sequence for that equipment be registered in the device, but also the sequences for other equipment affected by the added equipment must be changed. The present invention aims to provide an automatic operation method using a power calculator that can appropriately automatically determine switch operating procedures by simply adding or changing the registration of equipment information when adding or changing power equipment. purpose. The present invention method prepares a basic operation program for each type of substation equipment (e.g., transformer, transmission line, busbar) without providing a unique switch operation sequence for each power equipment or equipment group. The operation procedure is determined by referring to the basic operation program and power equipment information. FIG. 1 is a diagram showing the configuration of an apparatus for implementing the method of the present invention. This device mainly consists of main processing unit 1
, an external storage device 2, and a coupling device 3 with a substation. The main processing device 1 includes an operation procedure determination unit 4 that determines the operation procedure for the switch of the power equipment based on the power equipment information and the basic operation program, and an operation procedure determination unit 4 for executing the operation procedure determined by the operation procedure determination unit 4. Substations #1 to #N via coupling device section 3
It is equipped with an operation procedure execution unit 5 that outputs various switch control signals, and an equipment stop/use command input unit 6 that inputs operation commands as to which power equipment to stop or use. The external storage device 2 includes a power equipment information unit 7 that stores all power equipment in the relevant system in advance and registers registered equipment or equipment to be added that is subject to changes or expansions of equipment; A basic operation program section 8 which has a basic operation program with a basic operation procedure for the switch predetermined according to the type of equipment from the attributes of the group, and the basic operation program is referred to in order to determine the actual switch operation procedure.
and an execution operation procedure section 9 that directly stores operation procedures for execution by the operation procedure execution section 8. Note that 10 is a man-machine device, and 11 is another computer system, which are connected to the main processing device 1 at an equipment stop/use command input section 6. The switch operation procedure determination method with the above configuration will be specifically explained using the substation equipment configuration diagram shown in FIG. First, the outline of the equipment configuration in Figure 2 is that the upper bus line B11 and the second bus line B12 have line switches LS1 and LS2, and line switches LS1 and LS2 that open and close lines A and B via sheath disconnectors CB01 and CB02.
This is made possible by LS101, 102, LS201, 202. The lower bus line B21 and the lower bus line B22 are connected to the line switch LS1 from the upper bus lines L11 and L12.
11, 112, 211, 212 and breaker CB
011,012,021,022 from the step-down line through the main transformers T1, T2 to the line switch
They are coupled by LS121, 122, 221, 222. Lower lines
32, connected via line switches LS31 and 32. Bus lines B11 and B12 are line switches
The busbars B21 and B22 can be connected by line switches LS120, 220 and the sheath breaker CB020. In addition, in the diagram, the
The closed state of CB is indicated by the symbol ○, and it is in the operating state (open state).
is indicated by ○, the closed state of line switch LS is indicated by , and the open state is indicated by . In such a power equipment configuration, part of the information stored in the power equipment information section 7 of the external storage device 2 is shown as a table in FIG. As shown in the figure,
Each piece of equipment, such as tracks, busbars, and transformers, is individually registered with a code as the equipment name, and switch groups used to connect and separate each piece of equipment are registered for each piece of equipment as components of a specific piece of equipment based on their attributes. It is classified and registered with a code,
Each component is identified by its type (LS, CB), function, and position explanatory text or symbol. Further, other equipment connected adjacent to a certain equipment is registered by code and equipment name as connected equipment related to the component equipment. For example, a line with equipment name A has line switches LS1, LS101, LS201 and line breakers CB01 with numbers 1,101,201,
01, and the type of each component is "Line side LS" for number 1, "Line side CB" for 01,
101 has the words “A bus line side LS” and 201 has the words “O bus line side LS” added, and the connection equipment is the A bus line,
The code of the second bus line is registered. In order to easily monitor the relationship between these facilities, their constituent devices, and connected equipment on a display device, appropriate words such as track names are also memorized, but these words are not directly related to automatic switch operation. do not. The power equipment information created in this way is registered in the same manner when adding or changing equipment. For example, as shown in Figure 2, track C is line B1
1. When added to Otsu bus line B12, switch LS3, CB03, LS103, LS203 for that purpose.
and is added to the table shown in FIG. This track C
For the expansion, the code of line C was newly registered as the equipment name, and its component equipment 3, 03, 103, 203 was added.
In addition to registering the equipment type and connection equipment, the code of line C is additionally registered as the connection equipment on the bus line B11. As described above, the present invention performs power equipment information processing by adding, deleting, or correcting the component equipment, equipment type, and connection equipment between the equipment and adjacent equipment when expanding or changing equipment. To enable automatic switch group operation by eliminating the need to change the sequence of other equipment that is affected by the added or changed equipment. The operation procedure determination section 4 determines the operation procedure for the switch using the above-mentioned equipment information and basic operation program as shown in FIG. (Step S21)...The operation procedure determination unit 4 generates a basic program for equipment shutdown and use from the program group of the basic operation program unit 8 in response to a command given from an operator or another computer system via the equipment shutdown and use command input unit 6. search for. For example, when stopping line A in the power system shown in FIG.
checks the command for errors and then passes it to the operation procedure determining section 4. The operation procedure determining unit 4 that received the command,
Among the programs stored in the basic operation program section 8, the basic operation program for stopping the track is extracted.
The basic operation program for stopping the track is as shown in Figure 4A.
S1, then track side line switch open (off)
Step S2, followed by step S3 where the line switch on the busbar side is opened (off). (Step S22)...The operation procedure determination unit 4 which has read out the above-mentioned basic operation program searches for component equipment, equipment type, and connected equipment information for the equipment to be operated. For example, in the command to stop Line A, each piece of information for the equipment name “Line A” shown in Figure 3 is provided.

Search for [Table]. (Step S23)...The operating procedure determination unit 4 interprets and executes the operating procedure for the equipment to be operated according to the procedure of the basic operating program by referring to its component equipment, equipment type, and connected equipment information. For example, in the case of "Line A stop", from the basic program shown in Figure 4A, the first step S1, which is the first one, is "Line CB cut", so the disconnector 01 and the disconnection of the component equipment of Line A are changed. Interpret it as disconnecting the switch, and create and save this content "A line 01 disconnected" as the first step in operating the switch. (Step S24)... After creating one procedure in step S23, the operation procedure determining unit 4 checks whether all steps of the searched basic operation program have been completed. If not, it returns to step S23, and when it has finished, The operation procedure determination is completed. For example, “A
When the procedure for "Line 01 cut" is created in the first process of step S23 in "Line stop", the procedure shown in Figure 4A is
Steps S2 and S3 remain, and these steps are also required to create the second and third steps.
Return to S23. This second step is "Line LS off on the track side", and this LS on the track side turns off line switch LS1 among the components of the A line.
In addition, the third step is “bus side
LS cut” and the contents are “A line 101 cut” and “A line cut”.
As mentioned above, the operation procedure is determined by searching the component equipment, equipment type, and connected equipment information stored for each equipment to be operated, and searching for the basic operation program according to the operation command. By determining the equipment to be operated using the equipment information according to the basic operating procedure, an operation content with a procedure is created.This method of determining the operating procedure can also be used to add or change electric power equipment, change the registration of equipment information, etc. In other words, in the method for determining operating procedures described above, equipment and
The basic operation program can be shared depending on the type of equipment configuration when changing or adding equipment, and if only the equipment information is added or changed, added or changed equipment etc. can be automatically searched when determining the operation procedure. , becomes the object of operation, and the operation procedure is also created. The operation procedure for stopping the bus line B11 in FIG. 2 is determined as follows. Upon receiving the stop command B11, the operation procedure determination section 4 extracts the program shown in FIG. 4B from the basic operation program section 8. In this program, steps S4 to S6 and S9
~S11 determines the switch operation procedure in the same way as for stopping the line A. In step S4, the upper line B
11 and the Otsu bus line B12 and the closing operation of the mustard line switch CB010, which is the disconnector closing, are determined, and in step S5, since the own side bus line linking line switch is closed (on), the closing operation of the line switch LS110 is determined. In step S6, since the other side bus linking line switch is closed (on), it is decided to turn on the line switch LS210.
Similarly, in step S9, the line switch CB010 is cut off, and in step S10, the line switch LS1 is cut off.
In step S11, it is determined whether the line switch LS210 is opened (off). Step S7 is a basic operation step in which the other bus line switch is closed when the own line switch is closed for the connected equipment, excluding the inter-bus link line switch. Based on this content, the operation procedure determining section 4 Extract the connection equipment for the first bus bar excluding the second bus line from the power equipment information, and from the component equipment and equipment type of the connection equipment, LS101 is closed for line A, so the line switch of the other bus B12 is
Determine the operation to close LS201. Similarly,
Upper bus line B11 and transformer T1 are line switch LS
Since it is connected by 111, line switch
Determine the operation to close LS211. Therefore,
In steps S4 to S7, a procedure for connecting the first bus to the equipment connected to the first bus is created prior to stopping the first bus. Step S8 is a basic operation step for opening (off) the own line switch corresponding to the line switch decision made at step S7, and in this case, it is an opening (off) operation for line switches LS101 and LS111. Therefore, steps S8 to S11
Then, the operation is to connect the O bus line to the equipment that was previously connected to the A bus line, and then open the equipment that connects to the A bus line. The contents of the operating procedure created in this way are as follows:
After being stored in the sequential execution operation procedure section 9, the operation procedure execution section 5, which has been given the activation signal by the operation procedure determination section 4, transfers the switch name and operation content data stored in the execution procedure section 9 to the substation #. 1 to #N are converted based on the rules determined by the control signals of the transmission devices, and outputted to the coupling device 3 to operate the actual equipment at the substation. When all actual device operations are completed, the created operating procedure is deleted, and when the same command is input again, the operating procedure based on the command is determined and executed. As described above, according to the present invention, even if power equipment is expanded or changed, it is not necessary to add operating procedures or change existing operating procedures, and switch operation can be ensured by simply adding power equipment information. It has the effect of automatically determining and executing procedures. For example, in Fig. 2, if track C is added, there is no need to create stopping and operating procedures for track C.
It suffices to simply add information to the power equipment information as shown in Figure 3. Furthermore, when line C is added, it is necessary to add an operation procedure for line C in the bus stop operation, but in the present invention, by adding only the power equipment information, the steps in Fig. 4B can be completed.
Equipment to be operated related to track C in S7 and S8
LS103 and LS203 are automatically determined.

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of the device in the method of the present invention;
The figure is a power system diagram for explaining the method of the present invention, FIG. 3 is a power equipment information table in the method of the present invention, FIGS. 4A and B are a flowchart of the basic operation program of the present invention, and FIG. This is a flowchart for determining the operating procedure. 1...Main processing unit, 2...External storage device, 3...
...Coupling device, 4...Operation procedure determining section, 5...Operating procedure execution section, 6...Equipment stop use command input section, 7
... Power equipment information department, 8 ... Basic operation program section, 9 ... Execution operation procedure section, 10 ... Man-machine device, 11 ... Other computer systems, #1 -
#N... Substation.

Claims (1)

[Scope of Claims] 1. A power equipment information unit that stores in advance switches, their types, and names of adjacent equipment determined from the attributes of switches between adjacent equipment for each power equipment in the responsible system; The power equipment includes a basic operation program unit that stores basic operating procedures for switches for use and stop of the power equipment according to the type of equipment, and an operation procedure determining unit that determines the operating procedures for the power equipment. In response to a command to use or stop the power equipment, the operating procedure determining unit searches the basic operating program for the type of power equipment from the basic operating program unit, and in accordance with the basic operating program, switches the power equipment information unit to open/close the power equipment belonging to the power equipment. A method for determining a switch operation procedure for an electric power system, characterized in that the order of operation of a switch is determined based on its type and the name of connected equipment. 2 In claim 1, the addition or change of power equipment includes the addition or change of the equipment information in the power equipment information department, and the addition or change of the switch belonging to the equipment, its type, and adjacent equipment. , a power system switch operation procedure determination method for changing connected equipment information of existing equipment adjacent to the equipment to be expanded or changed.