JP2014105468A - Monitoring control method and monitoring control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring control method for automatically correcting an operation plan when it is predicted that a water level of a dam deviates from restriction.SOLUTION: A monitoring control method of an embodiment has: a data acquisition step of acquiring a preliminarily formulated initial operation plan: a water level simulation execution step of performing simulation of water level fluctuation of a dam when the initial operation plan is used; a deviation determination step of determining whether or not a water level of the dam deviates from river system restriction from a prediction result of the water level fluctuation obtained by the simulation; an operation plan correction step of extracting an extraction operation plan with high similarity with the initial operation plan among operation plans which are stored in an operation plan database and correcting the initial operation plan based on the extraction operation plan when it is determined that the water level of the dam deviates from the river system restriction; and an operation plan database update step of writing the operation plan corrected by the operation plan correction step to the operation plan database.

Description

  Embodiments described herein relate generally to a monitoring control method and a monitoring control system.

  In the water system operation work that creates and implements a hydropower generation plan, the operator must observe the various restrictions set for each water system and dam, which are called water system restrictions, and consider the effects on other dams. To operate.

  At this time, the water level of the dam is affected by the amount of water flowing into the dam from upstream rivers and dams called self-currents, so the operator can use the dams based on these restrictions, past self-current changes, and future weather information. An operation plan that determines the time to operate the generator by discharging the water will be formulated and operated according to the operation plan.

  However, there are cases where it is difficult to operate as planned due to unexpected weather changes, etc., and when it is expected that the situation will deviate from the water system constraints due to the situation being different from the plan in advance, the operation will be performed according to the situation. The plan needs to be revised.

  In general, correction of an operation plan has to depend on the know-how of a skilled operator having advanced knowledge and experience.

JP 2012-82646 A

  In order to solve these problems, an embodiment of the present invention provides a monitoring control method capable of automatically correcting an operation plan when the water level of a dam is expected to deviate from the constraint.

  In order to achieve the above object, the monitoring control method according to the embodiment includes a data acquisition step of acquiring an initial operation plan preliminarily formulated for water discharge of a dam, and a water level of the dam when the initial operation plan is used. A water level simulation execution step for performing fluctuation simulation, and a deviation determination step for determining whether or not the water level of the dam deviates from a predetermined water system constraint from the prediction result of the water level fluctuation obtained by the simulation; When the water level of the dam is determined to depart from the water system constraints, an extraction operation plan having a high similarity to the initial operation plan is extracted from the operation plans stored in the operation plan database, and the extraction operation is performed. The operation plan correction step for correcting the initial operation plan based on the plan, and the operation plan correction step for correction The operation plan and a operation plan database update step of writing to said operation plan database.

The block diagram which shows the structure of the monitoring control system which concerns on 1st Embodiment. The block diagram which shows the structure of the memory | storage part of the monitoring control system which concerns on 1st Embodiment. The flowchart which shows operation | movement of the monitoring control system which concerns on 1st Embodiment. The block diagram which shows the structure of the memory | storage part of the monitoring control system which concerns on 2nd Embodiment. The flowchart which shows operation | movement of the monitoring control system which concerns on 2nd Embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of the monitoring control system according to the first embodiment.

  The monitoring control system 1 according to the first embodiment includes a communication IF (interface) 2, an input unit 3, an input IF 4, a display unit 5, a display IF 6, an arithmetic processing unit 7, and a storage unit 8, as shown in FIG. .

  The communication IF 2 is a communication device or communication that exchanges opening / closing commands with the discharge gate 11 of the dam 10 via the network 9, or exchanges data on the water level of the dam 10 with the water level sensor 12 installed in the dam 10. Means.

  The input unit 3 is an input device and input means for performing input control of various keyboards and buttons that are generally provided in a computer device. In addition, a function of recognizing or detecting an input signal by recognizing a voice uttered by a person may be provided. In this embodiment, it is installed outside the monitoring control system 1, but may be incorporated in the monitoring control system 1.

  The input IF 4 is an interface that connects the input unit 3 and the monitoring control system 1. The input unit 3 may be directly connected to the input unit 3 and the wiring in the monitoring control system 1 without going through the input IF 4.

  The display unit 5 is a monitor such as a liquid crystal display, an organic EL display, or a plasma display. In addition, you may provide the function to emit a sound. In this embodiment, it is installed outside the monitoring control system 1, but may be incorporated in the monitoring control system 1.

  The display IF 6 is an interface that connects the display unit 5 and the monitoring control system 1. For example, display control of the display unit 5 is performed from the arithmetic processing unit 7 via the display IF 6. The display unit 5 may be directly connected to the inside of the monitoring control system 1 without using the display IF 6.

  The arithmetic processing unit 7 reads out each program stored in the storage unit 8 and performs arithmetic processing. Specifically, it is a processor such as a CPU (Central Processing Unit), and a plurality of processors may be provided according to functions.

  The storage unit 8 is a storage device such as a RAM (Random Access Memory) or a ROM (Read Only Memory), a storage device such as a hard disk drive (HDD), or a storage unit.

  As shown in FIG. 2, the storage unit 8 includes a data acquisition program 101, a predicted self-flow value calculation program 102, a water level simulation execution program 103, a deviation determination program 104, and an operation plan DB used for processing in the arithmetic processing unit 7. (Data Base: database) 105, an operation plan correction program 106, an operation plan DB update program 107, and an operation plan output program 108 are stored.

  Here, the self-current value is the amount of water flowing into the dam 10 from an upstream river or dam.

  In this embodiment, the self-current value is obtained by calculation, but it may be obtained mechanically by installing a measuring device such as a flow meter in the river flowing into the dam.

  The data acquisition program 101 is a data acquisition unit that causes the arithmetic processing unit 7 to execute a function of acquiring a predetermined operation plan, parameters, and measurement data.

  The operation plan is a plan formulated for the discharge of water in the dam, for example, the discharge time in which the water of the dam 10 is discharged through the discharge gate 11 in order to operate the generator from 9:00 to 15:00. , Data on the dam 10 such as fluctuations in the water level of the dam 10 and output of the generator, data on time information such as season and date, and data on weather information such as weather, rainfall, and temperature. Of the operation plans, an operation plan that is prepared in advance and acquired by the data acquisition program 101 is hereinafter referred to as an initial operation plan.

  In this embodiment, a case where there is one dam in one water system is described as an example, but there are a plurality of dams in one water system, and operating an upstream dam affects the self-flow of a downstream dam. Etc. may acquire operation plans of all related dams.

  The opening / closing control of the discharge gate 11 is performed by an on-site worker based on, for example, a command output from the arithmetic processing unit 7 via the communication IF 2.

  The measurement data is measurement data of the dam 10, and an example thereof is the water level of the dam 10 obtained from the water level sensor 12 installed in the dam 10 via the communication IF2.

  The parameter is a parameter used for calculating the self-flow value, and an example is a conversion coefficient for calculating the amount of water from the water level of the dam 10.

  The predicted self-flow value calculation program 102 is a predicted self-flow value calculation unit that causes the arithmetic processing unit 7 to execute a function of calculating the current predicted self-flow value from the parameters and measurement data acquired by the data acquisition program 101.

  The water level simulation execution program 103 has a function of simulating the water level fluctuation of the dam 10 from the initial operation plan acquired by the data acquisition program 101 and the predicted self-flow value calculated by the predicted self-flow value calculation program 102. This is a water level simulation execution unit to be executed. By this simulation, a prediction result of fluctuations in the water level at intervals of 1 minute from the present to the end of work (24:00) when the initial operation plan is used is obtained.

  The departure determination program 104 causes the arithmetic processing unit 7 to execute a function of determining whether or not the water level of the dam 10 deviates from the water system restriction from the prediction result of the water level fluctuation obtained by the simulation of the water level simulation execution program 103. It is a deviation determination unit.

  Here, the water system restrictions are various restrictions predetermined for each water system and each dam. Specifically, the warning water level is the upper and lower limit values of the water level determined for each dam 10 so as not to cause flooding or drought. In addition, there are constraints reflecting the finished water level, which is the allowable range of the water level obtained by converting the annual dam 10 operation plan to the daily level, the relevant laws and the characteristics of the generator used. Constraints reflecting the relevant laws and the characteristics of the generator to be used include not only the constraints on the dam 10, but also the upstream river into which water flows into the dam 10 and the downstream river from which water flows out of the dam. The water level is also included.

  Here, the warning water level needs to be always satisfied, and the finished water level needs to be satisfied at the end of daily work (24:00).

  The operation plan DB 105 stores operation plans that have been formulated or modified in the past so as to satisfy the water system constraints.

  When the deviation determination program 104 determines that the water level of the dam 10 deviates from the water system constraint, the operation plan correction program 106 extracts an operation plan having a high similarity to the initial operation plan from among the operation plans stored in the operation plan DB 105. It is an operation plan correction part which makes the arithmetic processing part 7 perform the function which extracts an operation plan and rewrites an initial operation plan into an extraction operation plan.

  The operation plan DB update program 107 is an operation plan DB update that causes the arithmetic processing unit 7 to execute a function of writing the operation plan corrected by the operation plan correction program 106 or writing the initial operation plan into the operation plan DB 105 when no correction is necessary. Part.

  The operation plan output program 108 executes a function for the operation processing unit 7 to output the operation plan corrected by the operation plan correction program 106 or the initial operation plan to the display unit 5 via the display IF 6 when no correction is necessary. It is an operation plan output part to be made.

  Next, the operation will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of the monitoring control system according to the first embodiment.

  The arithmetic processing unit 7 executes the data acquisition program 101 to acquire the initial operation plan, parameters, and measurement data (step S201).

  These initial operation plans, parameters, and measurement data may be input from the input unit 3 via the input IF 4 or may be stored in the storage unit 8 in advance. Moreover, you may acquire from the outside of the monitoring control system 1 via communication part IF2.

  The arithmetic processing unit 7 executes the predicted self-current value calculation program 102, and calculates the current predicted self-current value from the parameters and measurement data acquired by the data acquisition program 101 (step S202).

  The arithmetic processing unit 7 executes the water level simulation execution program 103, and simulates the water level fluctuation of the dam 10 from the initial operation plan acquired by the data acquisition program 101 and the predicted selfflow value calculated by the predicted selfflow value calculation program 102. Is executed (step S203).

  The arithmetic processing unit 7 executes the deviation determination program 104, and determines whether or not the dam water level deviates from the water system constraint from the prediction result of the water level fluctuation obtained by the simulation of the water level simulation execution program 103 (step S204). ).

  The arithmetic processing unit 7 executes the operation plan correction program 106, and corrects the initial operation plan when the deviation determination program 104 determines that the water level of the dam 10 deviates from the water system restriction (YES in step S204) (step S205). ).

  Specifically, an extracted operation plan having a high similarity to the initial operation plan is extracted from the operation plans stored in the operation plan DB 105, and the initial operation plan is rewritten to the extracted operation plan.

  Here, the similarity is obtained by calculating the difference between the water level of the dam 10 in the operation plan stored in the operation plan DB 105 and the water level of the dam 10 in the initial operation plan at an interval of 1 minute, and adding the absolute values of the differences. The smaller the value, the higher the priority.

  However, the above similarity calculation method is an example, and it is not calculated based only on the water level of the dam 10, but is calculated by weighting time information such as season and date and weather information such as weather, rainfall, and temperature. Also good. By setting a large weight value when the time information and weather information match, an operation plan that matches the time information and weather information is judged to have high similarity.

  When the operation plan is rewritten by the operation plan correction program 106, the water level simulation execution program 103 is executed again (step S206). Thereafter, the correction by the operation plan correction program 106 (step S205) and the determination by the deviation determination program 104 (step S204) are repeated until it is determined by the deviation determination program 104 that there is no departure.

  The arithmetic processing unit 7 executes the operation plan DB update program 107 and writes the operation plan corrected by the operation plan correction program 106 or the initial operation plan in the operation plan DB 105 when no correction is necessary, thereby operating the operation plan DB 105. Is updated (step S206).

  The arithmetic processing unit 7 executes the operation plan output program 108 and outputs the operation plan corrected by the operation plan correction program 106 or the initial operation plan to the display unit 4 via the display IF 3 when no correction is necessary. (Step S206).

  In (Step S205), a plurality of operation plans having a high similarity to the initial operation plan are extracted, and in (Step S206), the plurality of operation plans extracted in (Step S205) are output to the display unit 4 as correction plans. You may let them.

  As described above, in the monitoring control system according to the first embodiment, when it is determined that the water system restriction is deviated in the initial operation plan set in advance, the initial operation plan is stored in the operation plan DB. Since it is rewritten to the extraction operation plan that satisfies the water system constraint stored in the, it can be automatically corrected to the operation plan that satisfies the water system constraint.

  Therefore, even an operator with little experience can correct the operation plan. Further, even when the operator makes further corrections to the operation plan that has been automatically corrected, it is not necessary to make corrections from the beginning, so the burden can be reduced.

(Second Embodiment)
The configuration of the second embodiment will be described with reference to the drawings. In addition, the same part as the monitoring control system of 1st Embodiment is shown with the same code | symbol, and description is abbreviate | omitted. FIG. 4 is a block diagram illustrating a configuration of a storage unit of the monitoring control system according to the second embodiment.

  The second embodiment is different from the first embodiment in the storage unit 8. Differences from the first embodiment will be described below.

  As shown in FIG. 4, the storage unit 8 includes a data acquisition program 301, a predicted self-flow value calculation program 102, a water level simulation execution program 103, a deviation determination program 104, and an operation plan DB 302 that are used for processing in the arithmetic processing unit 7. The operation plan correction program 303, the operation plan DB update program 107, and the operation plan output program 108 are stored.

  The data acquisition program 301 is a data acquisition unit that causes the arithmetic processing unit 7 to execute a function of acquiring a search condition in addition to a predetermined operation plan, parameters, and measurement data.

  The search condition is data of a condition used when the operation plan correction program 303 extracts an operation plan stored in the operation plan DB 302 with a high similarity to the initial operation plan.

  As a specific example of the search condition, the condition of the person in charge such as “the operation plan formulated or modified by the person in charge A”, “the number of times extracted in the operation plan modification program 303 is t times or less. The conditions of the number of times of extraction in the operation plan correction program 303 such as “operation plan of”, “operation plan formulated or modified with priority on power demand”, “operation formulated or modified with priority on weather” For example, the conditions of the operation policy indicating the priority items such as “plan”.

  The operation plan DB 302 stores operation plans that have been formulated and corrected in the past so as to satisfy the water system constraints. This operation plan is accompanied by information on the person in charge corresponding to the above search condition, information on the number of extractions in the operation plan correction program 303, and information on the operation policy.

  When the deviation determination program 104 determines that the water level of the dam 10 deviates from the water system restriction, the operation plan correction program 303 extracts an operation plan having a high similarity to the initial operation plan from among the operation plans stored in the operation plan DB 302. It is an operation plan correction unit that causes the arithmetic processing unit 7 to execute a function of extracting an operation plan based on a search condition acquired by the data acquisition program 301 and a function of rewriting an initial operation plan to an extracted operation plan.

  Next, the operation will be described with reference to FIG. FIG. 5 is a flowchart showing the operation of the monitoring control system according to the second embodiment.

  The arithmetic processing unit 7 executes the data acquisition program 301 and acquires the initial operation plan, parameters, measurement data, and search conditions (step S401).

  The search condition may be input from the input unit 3 via the input IF 4 or may be stored in the storage unit 8 in advance. Moreover, you may acquire from the outside of the monitoring control system 1 via communication part IF2.

  The arithmetic processing unit 7 executes the operation plan correction program 303 and corrects the initial operation plan when the deviation determination program 104 determines that the water level of the dam 10 deviates from the water system restriction (YES in step S204) (step S402). ).

  Specifically, an extracted operation plan having a high similarity to the initial operation plan is extracted from the operation plans stored in the operation plan DB 302 based on the search condition acquired by the data acquisition program 301. Then, the initial operation plan is rewritten to the extracted operation plan.

  For example, in the data acquisition program 301, the search condition “the number of times extracted in the operation plan correction program 303 is t or more” and “the operation plan formulated or corrected with priority on power demand” is acquired. In this case, among the operation plans stored in the operation plan DB 302, an operation plan having a high similarity to the initial operation plan while satisfying these conditions is extracted.

  As described above, in the monitoring control system according to the second embodiment, the operation plan correction program 303 extracts an extracted operation plan having a high similarity to the initial operation plan based on the search condition, and corrects the initial operation plan. Done. Therefore, it is possible to narrow down by the search condition, and it is possible to make corrections more suited to the driver's purpose.

  Note that the monitoring control system of the first embodiment and the second embodiment may include a DB that accumulates simulation results performed by the water level simulation execution program 103. Accumulation of simulation results enables reuse.

  In addition, when the operator corrects the operation plan corrected by the operation plan correction programs 106 and 303, the correction history and the correction result by the operator may be accumulated in the operation plan DBs 105 and 302. . Accumulating these can be used for operator education and technology transfer.

  Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof in the same manner as included in the scope and gist of the invention.

1 ... Supervisory control system 2 ... Communication IF (interface)
3 ... Input unit 4 ... Input IF
5 ... Display 6 ... Display IF
DESCRIPTION OF SYMBOLS 7 ... Arithmetic processing part 8 ... Memory | storage part 9 ... Network 10 ... Dam 11 ... Discharge gate 12 ... Water level sensor 101, 301 ... Data acquisition program 102 ... Predictive self-flow value calculation program 103 ... Water level simulation execution program 104 ... Deviation judgment program 105, 302 ... Operation plan DB (Data Base: database)
106, 303 ... Operation plan correction program 107 ... Operation plan DB update program 108 ... Operation plan output program

Claims (3)

A data acquisition step for acquiring an initial operation plan that has been formulated in advance for the discharge of dam water;
A water level simulation execution step for simulating the water level fluctuation of the dam in the case of using the initial operation plan;
A deviation determination step for determining whether or not the water level of the dam deviates from a predetermined water system constraint from the prediction result of the water level fluctuation obtained by the simulation,
When it is determined that the water level of the dam deviates from the water system constraint, an extracted operation plan having a high similarity to the initial operation plan is extracted from the operation plans stored in the operation plan database, and the extracted operation plan is extracted. An operation plan correction step for correcting the initial operation plan based on:
A monitoring control method comprising: an operation plan database update step of writing the operation plan corrected by the operation plan correction step into the operation plan database. A data acquisition unit that acquires an initial operation plan formulated in advance for the water discharge of the dam;
A water level simulation execution unit for simulating the water level fluctuation of the dam in the case of using the initial operation plan;
From a prediction result of the water level fluctuation obtained by the simulation, a deviation determination unit that determines whether or not the water level of the dam deviates from a predetermined water system constraint,
When it is determined that the water level of the dam deviates from the water system constraint, an extracted operation plan having a high similarity to the initial operation plan is extracted from the operation plans stored in the operation plan database, and the extracted operation plan is extracted. An operation plan correction unit for correcting the initial operation plan based on:
The monitoring control system which has an operation plan database update part which writes the operation plan corrected by the said operation plan correction part into the said operation plan database. The data acquisition unit further acquires conditions used in the extraction by the operation plan correction unit,
The operation plan correction unit, when it is determined that the water level of the dam deviates from the water system constraints, out of the operation plans stored in the operation plan database, an extraction operation plan having a high similarity to the initial operation plan. The monitoring control system according to claim 2, wherein extraction is performed based on the condition, and the initial operation plan is corrected based on the extracted operation plan.

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