JP4514691B2 - Supervisory control system and method - Google Patents

Description

  The present invention relates to a monitoring and control system and method that enables highly reliable control by preventing erroneous control by checking interlocks and various electrical quantities when monitoring and controlling a power system.

  Conventionally, in power system supervisory control, it is determined whether or not an operator's operation falls under an interlock condition in order to prevent an operation that leads to an accident by grasping the system state. In such a case, the operation is prohibited from being executed, and the operation that may lead to the system fault is prohibited.

The technology to prevent accidents is to calculate the electrical quantities when this operation is performed before actually outputting the operation command, and prohibit the operation if it is outside the allowable range. In some cases, a power monitoring control system that automatically performs the operation has been proposed. (For example, see Patent Document 1).
JP 2004-297773 A JP 11-41837 A

  However, if the control is executed only with the appropriateness of the electrical quantities when the operation is performed during the operation of the power system, there is a possibility of adversely affecting the water system, the oil system, the mechanical system, or the electricity user. is there.

  In addition, when the system is constructed, operating procedures, interlocks, and other conditions are constructed for each system device, the burden on the system designer increases. Furthermore, even if individual checks are strengthened, it is difficult to construct a highly reliable system as a whole.

  The present invention has been made in view of the above-described circumstances, and when operating system equipment, in addition to electrical quantities, electromechanical interlocks, work stoppage status, change ranges of water quantities and oil quantities, Consideration for shocks to users who use electricity can be systematically incorporated into the operation procedure, and interlocking conditions, various amounts of electricity, etc. can be calculated according to the operation procedure, enabling highly reliable control It is an object of the present invention to provide a monitoring control system and method.

  In order to achieve the above object, a monitoring control system according to the present invention includes means for storing operation procedures for system equipment, and an individual incorporation procedure for incorporating additional operation information before or after the output timing of a control command according to the operation procedure. It is characterized by comprising setting means, and individual assembly procedure check means for detecting the output timing of the control command and outputting the additional operation information incorporated by the individual assembly procedure setting means.

  Here, “output timing” refers to a timing at which an input of a control command can be accepted in device operation by the selection control method.

  The output timing condition is stored in advance, and the output timing is detected by determining whether the output timing condition is satisfied from the operation information and the state information of the system equipment.

  In the present invention, it is not necessary to construct a complete operation procedure in advance by incorporating an additional operation in association with the output timing, and it is possible to flexibly cope with a change in system and easily construct a reliable operation procedure. can do.

  In the monitoring control system according to the present invention, the individual built-in procedure setting means can set the determination timing of the result of the operation procedure as the output timing when the additional operation information is incorporated after the output timing of the control command. It is characterized by being.

  For example, in the case of a trial charging operation for an accident candidate facility, there are multiple results such as successful trial charging and failed trial charging. Operation information can be incorporated.

  Further, in the monitoring control system according to the present invention, the system device identification information is composed of device-specific identification information including general type information indicating the function of the device. The condition for judging the output timing is stored by the identification information or the general type information, and the individual built-in check means sets whether the condition for judging the output timing is set by the unique identification information or by the general type information. In the case where it is set by general type information, output timing is detected for each system device having unique identification information including the general type information.

  In the present invention, the general type information is included in the identification information of the system device so that the condition setting for detecting the output timing can be easily and quickly performed.

  The supervisory control system according to the present invention further includes means for collecting and storing status information of system equipment, means for storing an interlock condition for determining whether operation is permitted based on the status information, and the control An interlock check means is provided for determining whether or not the output of the control command is permitted based on the collected state information and the interlock condition at the time of command output.

  In the present invention, the interlock condition is determined at the output timing to prevent the output of an erroneous control command.

  Further, in the monitoring control system according to the present invention, the interlock check means executes a determination based on a general interlock rule based on a type of system equipment and a determination based on an individual interlock definition for each system equipment. It is characterized by.

  In the present invention, a general interlock rule and an individual interlock definition that cannot be handled by the rule are managed separately, facilitating the setting of the interlock condition and reducing the setting omission of the interlock condition.

  Furthermore, the supervisory control system according to the present invention calculates various quantities such as electricity based on the system state after the output of the control command at the output timing of the control command, and determines whether or not the control output is permitted based on the calculation result. It is characterized by having various quantity calculating means.

  In the present invention, various amounts of the system after execution of control are calculated at the output timing, and control output is executed after confirming that there is no abnormality.

  Preferably, the various amount calculation means collects various amounts such as electricity after the output of the control command, stores the difference as an error compared with the calculation result at the time of the output timing, and calculates the same system state At this time, it is preferable to determine whether or not the control output is permitted in consideration of the error. By storing the results of various quantities and their errors for each system state and correcting them in subsequent calculations, various quantities can be calculated with high accuracy.

  A supervisory control method according to the present invention is a supervisory control method for determining whether or not control output is permitted by determining various conditions such as an interlock at the time of selection operation of a grid device, wherein the operation procedure of the grid device and the grid device A step of storing an interlock condition for determining whether or not to permit the operation based on the state, a step of collecting and storing the state information of the system device, and added before or after the output timing of the control command according to the operation procedure. Incorporating operation information, detecting the output timing of the control command based on the operation procedure and the collected system information, and determining whether to output the control command based on the collected status information and the interlock condition A step of outputting the incorporated additional operation information at the output timing of the control command; and When the force timing, calculates the quantities of electricity, etc., based on the system state after the control command output, characterized in that it comprises a, determining whether to permit the control output based on the calculation result.

  According to the present invention, since the output timing on the condition of the operating device or the like is checked before or after the individual incorporation procedure and a necessary operation message is output, it is possible to flexibly change the system. And a highly reliable operation procedure can be easily constructed.

  In addition, checks such as interlocks and various electrical quantities can be flexibly constructed in association with output timing conditions, and the reliability of control can be improved by comprehensively executing these checks.

FIG. 1 is a functional block diagram of the monitoring control system according to the present embodiment. In this figure, the monitoring control system 1 includes a processing unit 11 that performs arithmetic processing for monitoring control, storage unit 12 for storing various data necessary for monitoring and control, the transmission apparatus of the distant and through the transmission path 5 3 And a transmission unit 13 that communicates with each other. The transmission unit 13 and the transmission device 3 may be realized by a remote monitoring control device master station and a slave station, respectively.

The processing unit 11 also performs input / output processing for input / output processing between the transmission / reception processing means 21 for transmitting / receiving transmission / reception data to / from the transmission unit 13 and the console 2 which is an HMI device for performing monitoring control. Monitoring means sent from a distance through the processing means 22, the individual incorporation procedure setting means 23 for setting individual incorporation procedures for the control sequence, the selection control means 25 for executing a series of control sequences, and the transmission apparatus 3. enter the monitoring data of the target and a monitoring data input means 2 4 to store the system data file 47 in the storage unit 12.

  Further, the selection control means 25 is a device operation information input means 26 for inputting operation information from the console 2 to the operation equipment 4, a check means 27 for executing various checks after the operation information is inputted, and an operation equipment 4 A device operation acceptance status display means 28 for displaying that the control command is accepted, and a control output means 29 for outputting a control command to the operation equipment 4 based on the input control request are provided. The check means 27 is a general interlock check means 31 for checking the general rules of the interlock, an individual interlock check means 32 for checking based on individually defined interlock conditions, and an individual for checking the validity of the device operation procedure. Built-in procedure check means 33, various quantity calculation means 34 for calculating various quantities after execution of control based on the state of the system and analog quantities, and operation state check for checking the state and various quantities after execution of control The means 35 is constituted.

  In addition, the storage unit 12 includes an interlock rule database (DB) 41 that stores general interlock rules for system devices, an individual interlock condition file 42 for checking individual interlock conditions, and an individual incorporation procedure. General rule DB 43 for storing general rules, an individual definition rule file 44 for storing individual definition rules for each operation target of an individual incorporation procedure, an operation procedure file 45 for storing operation procedures, an electric system, a water system, etc. Various quantity calculation files 46 for storing quantity calculation results, and a system data file 47 for storing monitoring data of the operating device 4 and system are provided.

Next, the operation of the monitoring control system 1 having the above configuration will be described.
<Operation of Individual Assembly Procedure Setting Unit 23>
In the individual incorporation procedure, the output timing of the operation device or the like is defined in advance, and when the operation device 4 is selected, the operation is output when the conditions are matched.

  FIG. 2 shows output timing items and examples. At least one of the items shown in this figure is used as an output timing condition. Input of item 1 (operating device) is mandatory. If items after 2 are entered, NO. The condition is satisfied by the AND condition with the item 1.

Each item will be described below.
(1) Operating device The identification information of the device that performs operations such as on / off (use / not use) can be set. The operation direction (ON, OFF, ON (trial charge), use, non-use, etc.) may be set together with the device identification information.

  Further, the device identification information can be set by a unique device name 201CB (unique identification information) or by general type information of the device such as CB or power transmission line CB.

(2) Target equipment Set identification information of equipment such as transmission lines, buses, transformers, and operation types for the equipment (trial charging, charging, power outage, water charging, water outage, trial charging success, trial charging failure, etc.).

  In addition, the facility identification information can be set by a unique device name of No. 2 Tr, or by general type information of the facility such as Tr or linkage Tr.

(3) Operation type Set the operation type (trial charge, charge, power failure, water charge, water outage, trial charge success, trial charge failure, etc.).

(4) Device status Set the switch or 43SW and its status (ON, OFF, use, non-use, etc.).
The above (1) to (4) are conditions for calculating the output timing. However, the calculation conditions are not limited to this, and information such as weather may be added.

Output timing conditions are determined for each setting item, and the position (embedding position information) for automatically incorporating the individual assembling procedure set by the individual assembling procedure setting means 23 is selected and input from the following two items: 1) Output Automatic integration before operation that satisfies timing 2) Automatic integration after operation that satisfies output timing

  The set individual incorporation procedure is stored in the individual definition rule file 44 together with the incorporation position information in association with the output timing condition. FIG. 3 shows a data configuration example of the individual definition rule file 44.

  For example, if procedures A, B, and C are automatically installed before an operation that satisfies the output timing, a procedure with the message “Please execute the next procedure first” appears on the console display when selecting the device. A, B, and C are displayed.

  In addition, when procedures A, B, and C are automatically incorporated after an operation that satisfies the output timing, when the device selection and control (operation) are completed, “continue execution of the next procedure is performed on the display device”. Procedures A, B, and C are displayed together with the message "Please do".

In addition, since general type information can be applied to operation equipment, for example, even if a specific facility A is trial-charged from any of several CBs, when the equipment is selected, “Please execute the following procedure first” ”And the procedures A, B, and C can be displayed.
The individual built-in procedure setting means operates as described above.

  Next, the operation of the various quantity calculation means executed in the selection control procedure will be described by taking as an example the case of calculating various quantities of the electric system and the aqueous system.

<Operation of various quantity calculation means>
(Example of calculation of various quantities of electrical system)
First, as an example of calculation of various electrical quantities, a case will be described in which it is determined whether or not an overload occurs in a transformer and a transmission line in accordance with an operation of a circuit breaker connected to a power system.
As a check criterion, actual data of the transformer and the transmission line associated with the ID of the circuit breaker to be operated is input.

Then, each check is performed based on the following check criteria.
(1) For a transformer, an alarm is output when the apparent power (VA) of the transformer satisfies the following two conditions.
1) The rated capacity x Tr overload rate was exceeded.
2) The apparent power of the system before and after operation was calculated, and the change rate of the apparent power exceeded the overload detection change amount.

(2) For the transmission line, an alarm is output when the current value of the transmission line satisfies the following two conditions.
1) The rated current x transmission line overload rate was exceeded.
2) The transmission line current before and after the operation was calculated, and the rate of change of the current exceeded the overload detection change amount.

here,
Rated capacity, rated current: Values defined in the equipment database Tr overload rate: Value set for each equipment on the Tr overload ratio screen Transmission line overload ratio: Set for each equipment on the power line overload ratio screen Value Overload detection change amount: There are the following two types, which are set on the other constant screen.
・ Not generated → Generated (used when no overload occurs)
-Occurrence (used when overload has already occurred)
Based on the above procedure, various electrical quantities are calculated when the breaker is operated.

(Example of calculation of water system quantities)
Next, the procedure of various quantity calculation means will be described with reference to FIG. 4, taking as an example a dam water level check at the start and stop of the generator operation.

  First, it is determined whether or not the operation is a generator operation start (S201). If the operation is a generator operation start operation, it is checked whether or not the amount of water in the lower dam is greater than or equal to a predetermined value (S202). If the value is equal to or greater than the predetermined value, an error message is output (S205). If the value is less than the predetermined value, the execution permission mode is set, that is, the operation is accepted (S206).

  On the other hand, if “NO” in the step S201, it is determined whether or not the operation is to stop the generator (S203). If the operation is to stop the generator, it is checked whether or not the amount of water in the upper dam is equal to or greater than a predetermined value. (S204). If this check indicates that the value is equal to or greater than the predetermined value, an error message is output. If the value is less than the predetermined value, the execution permission mode is set (S206).

  Heretofore, an example of calculating various quantities of the water system has been described. In addition to these, various quantity calculations include an oil system and a mechanical system, but various quantity calculations are not limited thereto.

(General procedure for various quantity calculation means)
The various quantity calculation means 34 can be generally realized by a procedure as shown in FIG. First, various quantity calculation items corresponding to the device type ID are extracted with reference to the various quantity calculation file 46 illustrated in FIG. 6 (S301). And the following procedures are performed about all the extracted various quantity calculation items (S302a, S302b). The system collects actual data necessary for calculating various quantities of the extracted items, and calculates various quantities according to a predetermined algorithm (S303). Then, it is determined whether or not it is OK in light of the determination conditions of the various quantities (S304), and if not OK, an error message is output (S306). On the other hand, if “YES” in the step S304, the steps S303 and S304 are executed for the next item. If all items are checked and there is no NG in the check, the execution permission mode is set (S305).
The various quantity calculation means operate as described above.

<Operation of selection control means>
Next, the operation of the selection control means 25 will be described with reference to FIG. FIG. 7 is a flowchart showing the processing procedure of the selection control means 25.

  First, when the operator selects the operation device 4 from the console 2 (S101), the device selection signal is read into the device operation state input means 26 via the input / output processing means 22 of the monitoring control system 1. When reading the device selection signal, the device operation state input unit 26 first activates the general interlock check unit 31 in the check unit 27 (S102).

  When the general interlock check means 31 is activated, the general interlock rule is extracted with reference to the interlock rule DB 41, and the general interlock check is executed based on the type of the device. FIG. 8 is a data example of the interlock rule DB 41. Here, the device type LS (line switch) indicates that an input operation is possible when CB (breaker) is off and LE (line ground) is disconnected.

  If this check is OK (“YES” in S103), then the individual interlock check means 32 is activated, and the individual interlock check is executed with reference to the individual interlock condition file 42 (S104). FIG. 9 is a data example of the individual interlock condition file 42. Individual interlock conditions that cannot be ruled are stored, and it is checked whether or not the interlock condition corresponding to each operation device is met.

  If this check is OK (“YES” in S105), the individual incorporation procedure check means 33 is then activated, and the individual incorporation procedure is checked with reference to the general rule DB 43 (S106). As a check of the individual incorporation procedure, first, it is checked whether or not the procedure is in accordance with the general rules stored in the general rule DB 43 illustrated in FIG. If this check is OK, next, the individual definition rule file 44 is referred to and it is checked whether or not the control is performed in accordance with the procedure set by the individual incorporation procedure setting means 23.

  The check operation based on the individual definition rule will be described in detail. For the selected device and its operation direction, a preset procedure stored in the individual definition rule file 44 is extracted based on the system status. . Then, determine whether it is before or after the procedure that satisfies the output timing, that is, the procedure that satisfies the output timing. In the case of, a message for adding the operation is output. On the other hand, in the case where the installation position is installed later, a message indicating a procedure to be operated subsequently is output after a control command is output to the operating device 4.

  If the check of the individual incorporation procedure is OK (S107), then the various quantity calculation means 34 is activated to execute various quantity calculation checks (S108). This various quantity calculation check is performed based on the processing procedure of the above-mentioned various quantity calculating means 34, and based on the system state before and after the operation, calculation of the electric system, water system, and other necessary various quantities is performed.

  If the result of the check by the various amount calculation is OK (“YES” in S109), the device operation acceptance status display means 28 is activated and a control request to the device 4 is received from the console 2. A display indicating that it is possible is performed (S110), and the operator performs device operation (control) according to this display (S111), whereby a control command is output from the monitoring control system 1 via the control output means 29. (S112). This control command is output to the operating device 4 via the transmission device 3.

Then through the monitoring data input means 24, the input monitoring data of the operating device 4, the operation status check, i.e., control is made whether the check was successful (S113), carried out normally If the error occurs, the process ends as it is (“YES” in S114), and if it is abnormal, an error message is output (S116).

  In step S113, when the operation state is checked, various values of the system after the operation are input and compared with the values of the various values of the system after the operation calculated in step S108. It is a good idea to save the difference. Then, when various quantities are calculated in the next step S108, various quantities can be calculated with high accuracy by calculating including the error when the system state after the operation becomes the same.

  On the other hand, if an abnormality is detected in the individual assembly procedure check in step S106 (S107 “NO”), an additional operation notification message is output (S117). When the forced operation is possible and the forced operation is performed (“YES” in S118 and S119), the process proceeds to the device operation acceptance state display process in step S110. On the other hand, if the forced operation is not possible in step S118, or if there is no forced operation in step S119 and a certain time has passed (S120), a message indicating that the operation has been stopped is output (S121).

  As described above, according to the present embodiment, when operating the power system equipment, in addition to the general / individual interlock check, the check electric water system and other various amount calculation checks in the individual built-in hand are comprehensively performed. It is possible to prevent erroneous control of the power system equipment, and to prevent adverse effects such as application of shocks to the equipment and users who use electricity.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, as shown in FIG. 11, the individual definition rule file 44 has an output timing that is not at the time of output of the control command but at the time of determination of the result after output when the position where the additional operation procedure is incorporated is behind the output timing. You may make it provide the flag for making it. If an additional operation procedure is set for each control result, even if a different operation is required for each operation result, the operation procedure can be easily set.

  The present invention can be used for monitoring and control systems such as gas and water and sewage in addition to electric power.

It is a functional block diagram of the supervisory control system by embodiment of this invention. It is explanatory drawing of the item example of the output timing by embodiment of this invention. It is a data block diagram of the individual definition rule file 44 of FIG. It is a flowchart which shows the example of a calculation of the water system of the various quantity calculating means 34 of FIG. It is a flowchart which shows the general process sequence of the various quantity calculating means 34 of FIG. It is a data block diagram of the various quantity calculation file 46 of FIG. It is a flowchart which shows the process sequence of the selection control means 25 of FIG. It is a data block diagram of interlocking rule DB41 of FIG. It is a data block diagram of the separate interlock condition file 42 of FIG. It is a data block diagram of general rule DB43 of FIG. It is a data block diagram by the other Example of the individual definition rule file 44 of FIG.

Explanation of symbols

1 Monitoring control system 2 Console 3 Transmission equipment (slave station)
4 Operating equipment 5 Transmission path 11 Processing unit 12 Storage unit 13 Transmission unit (master station)
21 transmission / reception processing means 22 input / output processing means 23 individual assembly procedure setting means 24 monitoring data input means 25 selection control means 26 equipment operation state input means 27 check means 28 equipment operation acceptance status display means 29 control output means 31 general interlock check Means 32 Individual interlock check means 33 Individual assembly procedure check means 34 Various amount calculation means 35 Operation state check means 41 Interlock rule DB
42 Individual interlock condition file 43 General rule DB
44 Individual definition rule file 45 Operation procedure file 46 Various calculation file 47 System data file

Claims (5)

A monitoring control system using a selection control method,
Means for storing the operating procedure of the system equipment;
Means for collecting and storing status information of system equipment;
Means for storing an interlock condition for determining whether or not to output the control command based on the state information;
Interlock check means for determining whether or not to output the control command based on the collected state information and the interlock condition at the output timing of the control command;
Control command output timing according to the operation procedure, output timing defined by the system equipment to be operated and the operation direction, built-in position indicating whether it is before or after the procedure that satisfies the output timing, and necessary for monitoring control An individual built-in procedure setting means for associating and saving an additional operation procedure to be stored in an individually defined rule file,
A procedure for extracting an additional operation procedure corresponding to the selected system device and its operation direction by referring to the individual definition rule file when selecting a system device, and for the embedded position of the additional operation procedure to satisfy the output timing Before the output timing, if the embedded position is before the output timing, it is determined whether or not the procedure has been executed based on the operation history. When the built-in position is after the output timing, after the control command is output by the operating procedure, a message indicating the procedure to be operated subsequently is output to the console. Means,
Selection control means for executing a series of control sequences according to the operation procedure and the additional operation procedure ,
When the additional operation procedure is incorporated after the output timing of the control command according to the operation procedure, the individual incorporation procedure setting means can set the determination timing of the result after the output of the control command according to the operation procedure as the output timing. monitoring and control system, characterized in that it. The identification information of the system device is composed of unique identification information of the device including general type information indicating the function of the device,
The individual built-in procedure setting means includes at least one of a target facility such as a power transmission line, a bus, and a transformer, an operation type such as trial charging, charging, and power failure, and an equipment state such as on, off, use, and non-use. Determining the output timing based on the output timing condition determined by one and the system equipment represented by the unique identification information or general type information,
The individual built-in check unit determines whether the output timing condition is set with unique identification information or general type information. If the output timing condition is set with general type information, the general type information monitoring and control system of claim 1, wherein detecting the output timing for each system device having a unique identification information including the. The interlock check means includes a general interlock check means for determining whether or not the output of the control command is permitted based on an interlock condition defined by the type of system equipment, and an interlock condition defined for each individual system equipment. monitoring and control system according to claim 1, comprising the individual interlock checking means for determining whether to permit output of the control command based. Various quantity calculation files in which various quantity calculation items are associated with each device type ID;
Various quantities corresponding to the device type ID of the device to be operated based on the system state after the output of the control command with reference to the various amount calculation file at the output timing of the control command by the operation procedure or the additional operation procedure Extract calculation items, collect system data necessary for calculation of various quantities of the extracted various calculation items, calculate various quantities according to a predetermined algorithm, and determine whether the control output is permitted or not based on the calculation results. Various quantity calculating means for determining;
The monitoring control system according to any one of claims 1 to 3 , further comprising: The various quantity calculation means executes various quantity calculations on the extracted quantity calculation items after the output of the control command, stores the difference as an error compared with the calculation result at the time of the output timing, and the same system state 5. The supervisory control system according to claim 4 , wherein in the calculation of the control output, whether or not the control output is permitted is determined in consideration of the error.

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