JP4383000B2 - Work blackout adjustment system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a work blackout adjustment system in a power plant.
[0002]
[Prior art]
At the power plant, the supply capacity for the expected demand is secured by nuclear power generation, hydroelectric power generation and thermal power generation. Power plants that produce nuclear power and hydropower usually do not cease operation and have a fixed portion of expected power demand. In addition, thermal power plants that perform thermal power generation are usually installed at a plurality of locations, and some of them are operated to distribute the economic load to secure the fluctuation part of the predicted demand power. An operating thermal power plant needs to be shut down periodically due to maintenance, etc., and as an alternative, operating a stopped thermal power plant that is on standby ensures supply capacity for expected power demand. ing.
[0003]
However, when the thermal power plant in operation is stopped and switched to another thermal power plant, the operating cost of each thermal power plant is different, so that the overall operating cost is changed and a loss cost is generated. For this reason, a person who requests that a thermal power plant generator be stopped for construction, maintenance, inspection, etc. (hereinafter referred to as a requester) must select a stop date and time with a low loss cost.
[0004]
Conventionally, a central power supply command station that issues a power supply command to each power station collects request data such as information specifying the generator from each requester and the desired stop date and time, and reduces the loss cost caused by the stoppage of the power generator. Adjustment work such as calculating, changing to a date with a low loss cost, and requesting adjustment has been performed (in this sense, the central power supply command station is hereinafter referred to as an adjustment point).
[0005]
[Problems to be solved by the invention]
For this reason, the adjustment location places a great burden on this adjustment work, and it takes a long time from the request for readjustment to the requester to the determination of the stop date and time. In addition, it is difficult to find outages and times that can reduce loss costs, and even though there are actually dates and times with the lowest loss costs, the optimal date and time of stoppages that can be handled by the coordinator are determined. It was. Furthermore, when there are many requesters and the date and time overlap, it has become increasingly difficult to determine an appropriate stop date and time.
[0006]
The present invention was made in view of such problems, and it is an object of the present invention to provide a work blackout adjustment system in a power plant that can quickly determine an optimal stop date and time with a low loss cost according to a request from a requester. To do.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the work blackout adjustment system according to the present invention is:
Consists of each power plant to the request to stop the power generator is installed to the requester side was the requestor terminal, and the installation has been adjusted point side server to adjust place side to adjust the power outage work,
The requester-side terminal transmits the generator stop data including information specifying the generator to be stopped and the desired stop date and time input from the requester to the adjustment location server,
The adjustment location side server calculates the loss cost based on the generator stop data received from the requester side terminal and transmits the loss cost to the requester side terminal,
The requester side terminal displays the loss cost received from the adjustment location side server to the requester, and upon receiving the stop date and time input from the requester, sends the stop date to the adjustment location side server,
The adjustment location server stores the stop date and information received from the requester side terminal and information identifying the generator, determines the adjustment result for the work outage request ,
The stop date / time included in the generator stop data includes a plurality of candidate stop dates / times, the adjustment location server calculates a loss cost for each of the plurality of candidate stop dates / times, and
The requester-side terminal is in an “automatic” mode in which the best stop date / time is determined by the system based on a loss cost calculated for each of a plurality of candidate stop dates / times, or a “selection” mode in which the requester itself determines Either of these can be selected .
[0008]
In the work blackout adjustment system according to the present invention, when the generator stop data including the information for specifying the generator to be stopped and the desired stop date and time is input to the requester side terminal, the loss cost is displayed. By changing the date and time and inputting again, it is possible to determine the optimal stop date and time by comparing loss costs of a plurality of dates and times, and to quickly and easily determine the stop date and time.
[0009]
The stop time includes a stop date and time of a plurality of candidates, the adjustment locations side server you calculate the loss cost for each of the stop time of a plurality of candidates. By doing in this way, the loss cost of the stop date of each candidate can be confirmed collectively, and the optimal stop date can be determined more quickly.
[0010]
The requester-side terminal is in an “automatic” mode in which the best stop date / time is determined by the system based on a loss cost calculated for each of a plurality of candidate stop dates / times, or a “selection” mode in which the requester itself determines Ru allowed to select whether to any of the. Before SL requester terminal can determine if the "Random" is selected, the minimum loss costs stop time of each calculated loss costs for the stop time of a plurality of candidates. By doing so, for the requester who thinks that it is only necessary to determine the stop date / time of the minimum loss cost, it is not necessary to determine the stop date / time of the minimum cost, and the optimal stop date / time is determined more quickly. be able to.
[0011]
It is preferable that the requester side terminal transmits the information for specifying the generator to be stopped, the determined stop date and time, and the loss cost to the contract work contract system. By doing in this way, these data can be utilized for the contract construction contract system accompanying a work blackout.
[0012]
It is preferable that the requester side terminal transmits the information for specifying the generator to be stopped, the determined stop date and time, and the loss cost to the power generation company and the power purchaser. By doing in this way, the power generation company can use these data for power generation restrictions when the transmission line is stopped, or when starting the power generator at a power transmission neck, and the economic operation of the power generator can be expected. In addition, for power purchasers, charges that have been fixed in the past, such as rebates of basic charges for supplementary power in case of accidents in connection supply contracts and outage power in power supply and demand contracts, are charged according to daily power generation conditions. Can be calculated.
[0013]
The adjustment location server preferably uses the determined adjustment result as basic data for calculating the loss cost. In this way, even if there is a stop request by another requester, the loss cost is accurately calculated, and the optimal stop date and time can be determined.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0015]
FIG. 1 shows a work blackout adjustment system in a power plant according to the present invention. In the figure, requester-side terminals 1 are installed for requesters X, Y, and Z, respectively. An adjustment location side server 3 is installed at the adjustment location (central power supply command center) 2. The central power supply command station 2 issues power supply commands to the nuclear power plant NPS, the hydroelectric power plant HPS, and the plurality of thermal power plants A, B, C, D, E, F, G, H, and I.
[0016]
The requester side terminal 1 of each requester includes a central processing unit (CPU) 4, a ROM 5, a RAM 6, an input device 7 such as a keyboard and a mouse, and an output device 8 such as a printer and a display. It is connected to the. The ROM 5 stores a program for adjusting work blackouts, and the RAM 6 stores input data and data received from the adjustment location side server 3. On the display of the output device 8, a startup screen, a subject input screen, and a loss cost calculation screen are output. When the system is started on the startup screen, a subject input screen is displayed. On this subject input screen, the requester inputs information specifying the generator to be stopped and data such as the stop date and time, and the server on the adjustment location side 3 can be transmitted. Further, when data such as loss cost is received from the adjustment location server 3, a loss cost calculation screen is displayed over the subject input screen.
[0017]
The adjustment location server 3 includes a central processing unit (CPU) 10, a ROM 11 and a RAM 12, and is connected to the Internet via a router 13. The ROM 11 stores a loss cost calculation program, and the RAM 12 stores a loss cost data file.
[0018]
Next, the operation of the work blackout adjustment system in the power plant having the above-described configuration, that is, the operation of work blackout adjustment will be described with reference to the flowchart of FIG.
[0019]
In the requester side terminal 1, first, in step 101, it is determined whether or not there is a generator stop request from each requester. This determination is made based on whether or not the activation screen of the requester side terminal 1 has been activated. If there is no generator stop request, it waits until there is a request, and if there is a request, it waits until data input is completed at Step 102. The data input by the requester is information specifying the generator to be stopped and the desired stop date and time (a plurality of candidate stop dates can be input). Further, the requester selects and inputs either “automatic” mode in which determination of the stop date / time is left to the system or “selection” mode in which the stop date / time is determined by the requester. Judgment of completion of data input is made depending on whether or not the requester has clicked a button such as “input completion” or “input confirmation”.
[0020]
When the data input is completed, the input data is transmitted to the adjustment location side server 3 in step 103 to request calculation of the loss cost. As a result, the adjustment location server 3 calculates the loss cost according to the loss calculation program stored in the ROM 11 based on the data transmitted from the requester terminal 1.
[0021]
Here, a specific example of calculation of the loss cost will be described. The power generation costs of the power generators A to I are a, b, c, d, e, f, g, h, i yen / kwh, respectively. In addition, as shown in FIG. 3, when the predicted demand power is P, the fixed portion is supplied by the nuclear power plant NPS and the hydroelectric power plant HPS, and the variable portions are the thermal power plants A, B, C, D and E Suppose that it is covered by a generator. Here, when there is a request to stop the generator of the thermal power plant B, the output of the generator of the thermal power plant E is increased, and the generator of the thermal power plant F is operated for the shortage. The loss cost L at this time is L≈e−b. Further, when there is a request to operate the generator of the thermal power plant H, the output of the generator of the thermal power plant E is decreased, and the shortage decreases the output of the generator of the thermal power plant D. The loss cost L at this time is L≈he.
[0022]
In this way, the loss cost result calculated by the adjustment location server 3 is transmitted to the requester terminal 1. When the loss cost result is received in step 104, the requester side terminal 1 determines in step 105 whether or not the calculation of the loss cost at the stop date / time of all candidates has been completed. Wait until the calculation of the loss cost for the stop date is completed. When the calculation of the loss cost of all the candidate stop dates is completed, it is determined in step 106 whether the “automatic” mode or the “selection” mode is selected.
[0023]
If the “Random” mode is selected, a candidate for the stop date / time with the smallest loss cost is selected from the loss costs for the stop date / time of each candidate in step 107. In step 108, the loss cost at the stop date / time of each candidate is collectively displayed on the screen of the output device 8, and a specific mark is displayed on the candidate at the stop date / time at which the loss cost is the minimum. To understand. Here, the requester can determine the stop date and time by looking at the stop date and time when the loss cost is minimum, and if this is OK, by clicking a button such as “Determine”.
[0024]
If the “selection” mode is selected, the loss cost at the stop date / time of each candidate is collectively displayed in step 109. In this case, it is preferable to arrange them in ascending order of loss cost. Here, the requester looks at the loss cost of each candidate at the stop date and time, and determines an optimal stop date and time by taking into consideration factors other than the loss cost. Here, the stop date and time can be determined by clicking the displayed row of each stop date and clicking a button such as “OK”.
[0025]
As described above, in the work blackout adjustment system of the present embodiment, the loss cost is displayed simply by inputting the generator stop data including information specifying the generator to be stopped and the desired stop date and time to the requester side terminal 1. Therefore, the optimal stop date and time can be immediately determined, and the stop date and time can be determined quickly and easily.
[0026]
If it is determined in step 110 that the determination input has been made, the determined stop date / time is determined as the optimal stop date / time in step 111, and the information specifying the generator and the stop date / time determination data are adjusted in step 112. It transmits to the location side server 3. As a result, the adjustment location server 3 stores in the loss cost data file of the RAM 12 the data indicating that the generator is stopped on what day, month, day, or how many MW, and the subsequent loss data calculation. Make it available as basic data. As a result, even if there is a stop request by another requester, the loss cost is accurately calculated, and the optimal stop date and time can be determined.
[0027]
Next, in step 113, the information for specifying the generator to be stopped, the determined stop date and time, and the loss cost are transmitted to the contract work contract system, and these data are used in the contract work contract system accompanying the work blackout. To do. In step 114, information specifying the generator to be stopped, the determined stop date and time, and loss cost are transmitted to the power generation company and the power purchaser. In this way, the power generation company uses these data for power generation restrictions when the transmission line is stopped or when the power generator is started at a power transmission neck, etc., so that the generator can be economically operated. In addition, for power purchasers, charges that have been fixed in the past, such as rebate of basic charges for power supplemented in the event of connection supply contracts and stop power in power supply and demand contracts, are calculated as charges according to daily power generation conditions. To do.
[0028]
【The invention's effect】
As is clear from the above description, according to the present invention, the loss cost can be displayed simply by inputting the generator stop data including information specifying the generator to be stopped and the desired stop date and time to the requester side terminal. Thus, the requester can quickly and easily determine the stop date and time. Even if there is a stop request by another requester, the loss cost is accurately calculated, and the optimal stop date and time can be determined. As a result, cost consciousness is fostered on the requester side, and the burden of adjustment work is reduced on the adjustment point side, so that loss costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram of a work blackout adjustment system in a power plant according to the present invention.
FIG. 2 is a flowchart showing an operation for adjusting a business blackout by the system shown in FIG. 1;
FIG. 3 is a diagram showing power distribution of each power plant.
[Explanation of symbols]
1 Requester side terminal 3 Adjustment location side server 4 CPU
5 ROM
6 RAM
7 Input device 8 Output device 10 CPU
11 ROM
12 RAM
A-I Thermal Power Plant

Claims (5)

Consists of each power plant to the request to stop the power generator is installed to the requester side was the requestor terminal, and the installation has been adjusted point side server to adjust place side to adjust the power outage work,
The requester side terminal transmits the generator stop data including the information to specify the generator to be stopped and the desired stop date and time input from the requester to the adjustment location side server,
The adjustment location side server calculates the loss cost based on the generator stop data received from the requester side terminal and transmits the loss cost to the requester side terminal,
The requester side terminal displays the loss cost received from the adjustment location side server to the requester, and upon receiving an input for determining the stop date and time from the requester, sends the stop date and time to the adjustment location side server,
The adjustment location server stores the stop date and information received from the requester side terminal and information identifying the generator, determines the adjustment result for the work outage request ,
The stop date / time included in the generator stop data includes a plurality of candidate stop dates / times, the adjustment location server calculates a loss cost for each of the plurality of candidate stop dates / times, and
The requester-side terminal is in an “automatic” mode in which the best stop date / time is left to the system determination based on a loss cost calculated for each of a plurality of candidate stop dates / times, or a “selection” mode in which the requester itself determines A work blackout adjustment system characterized by being able to select either of them . The requester terminal, the case where "Auto" mode is selected, claims and determining the minimum loss costs stop time of each calculated loss costs for the stop time of a plurality of candidate Item 1. The work blackout adjustment system according to Item 1 . The work according to claim 1 or 2 , wherein the requester side terminal transmits information specifying a generator to be stopped, the determined stop date and time, and a loss cost to the contract work contract system. Power outage adjustment system. The said requester side terminal transmits the information which specifies the generator which should be stopped, the determined stop date and time, and loss cost to a power generator and a power purchaser in any one of Claim 1 to 3 Work blackout adjustment system. The adjustment locations side server, working blackout adjustment system according to any one of claims 1 to 4, characterized in that the determined adjusted results and loss costs of basic data calculations.

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