JP2001112171A - Distribution system facility plan supporting device and storage medium storing program for executing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically calculate power demand which is foreseen in the future, investigate construction cost with respect to it and evaluate a measure construction plan. SOLUTION: A load data preserving means 11 for inputting the present power demand of a distribution system via a remote monitor controller and preserving it as load data, a load assumption means 13 for predicting future power demand, based on load data of past and present power demand preserved in the load data preservation means, a supply force lack cause extraction means 16 for extracting a facility where power demand predicted by the load assumption means exceeds supply possible capacity and the cause, a measure deriving means 18 for dissolving the cause with respect to the facility, where the demand exceeds supply possible capacity and deriving a measure construction plan which does not generate new causes, and a measure construction cost calculation means 192 for calculating measure construction cost with respect to the measure construction plan derived by the measure-deriving means are installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution system facility planning support device used for planning a capital investment in a distribution system in an electric power business and a storage medium storing a program for executing the system.

[0002]

2. Description of the Related Art In a distribution system, whether the voltage and current are appropriate, the power loss is minimum,
When planning an appropriate supply form in consideration of whether it is appropriate for the budget, etc., when predicting the future load, deciding the countermeasure work corresponding to it, and calculating the costs associated with the implementation of the decided countermeasure work (such as The work is hereinafter referred to as the establishment of a facility plan) was performed as follows.

An operator calculates a power demand expected in the future, inputs the calculated power demand to a distribution system facility planning support device, instructs calculation of overload, excess current, and voltage drop, and overloads, excess current, and voltage in the distribution system. Outputs the calculation result of descent.

[0004] Based on the output result, the operator determines whether or not countermeasures are required in the future (whether overload, excess current, and voltage drop are within appropriate ranges),
If necessary, a plurality of countermeasure construction plans for eliminating overload, excess current, and voltage drop were input to the distribution system facility planning support device.

[0005] According to the countermeasure construction plan input in the above, the distribution system facility planning support device creates a future system reflecting the construction contents. The operator again instructed the calculation of overload, excess current, and voltage drop, and confirmed whether the overload, excess current, and voltage drop were eliminated.

If the above-mentioned construction plan has not been resolved, the operator inputs another countermeasure construction plan, and repeats the above.
If it has been resolved, input the assumed accidents that may occur in the future (substation outages, bank accidents, distribution line accidents, etc.) to the distribution system facility planning support device to check for supply interruptions after the occurrence of the accident. Is output. When there was a supply hindrance, the operator entered another countermeasure construction plan and repeated the processing of (1) and (2).

[0007] When there is no trouble in the supply, when the operator instructs execution of the construction cost calculation in this construction content, the distribution system facility planning support device calculates and outputs the construction cost. The operator has determined an optimal countermeasure construction plan based on the construction cost.

[0008]

As described above, conventionally, in formulating a facility plan, the operator manually inputs power demand expected in the future, manually creates an accident case that may occur in the future by the operator, Regarding manual creation of countermeasure construction plans, improvement of calculation accuracy by fluctuation of various calculation constants in construction cost calculation, further cost minimization by simultaneous arrangement of construction and equipment, optimal evaluation from multiple countermeasure construction plans There were problems that had to be solved.

First, there is a problem of labor and time required for calculation and input work of the power demand expected by the operator in the future. The operator predicts the power demand that will change in the future from the total of past loads for each substation, bank, and distribution line, but requires a great deal of labor for the totaling and predicting operations. In addition, the prediction of the future power demand by the operator also has problems of variation and accuracy.

Further, there is a problem of labor and time required for an operator to create an accident case that may occur in the future. In recent years, the reliability of facilities or equipment constituting a distribution system has been improved, and operators who have not experienced an actual accident have required much effort to create an accident case that may occur in the future.

[0011] Next, there is a problem of labor and time required for the operator to create a countermeasure construction plan. In preparing a countermeasure construction plan, the experience of preparing a countermeasure construction plan in the past greatly affects the required time.

Furthermore, various calculation constants used in the construction cost calculation are previously stored in the distribution system facility planning support apparatus, but these calculation constants fluctuate, and there is a problem that these fluctuations cannot be followed. . This has an effect on the calculation accuracy in the construction cost calculation. Therefore, it is necessary to prepare a construction plan with high accuracy in the construction cost calculation and to minimize the construction cost.

[0013] Further, there is a problem of labor and time required for an evaluation work as an optimal countermeasure construction plan by an operator from a plurality of prepared countermeasure construction plans. In addition, a lot of labor is required for final evaluation taking into account the evaluation conditions by these operators.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and calculates and inputs a power demand expected in the future in a conventional power distribution system equipment planning support apparatus, creates an accident case that may occur in the future, Distribution system equipment that can create countermeasure construction plans, change various calculation constants used in construction cost calculation, minimize cost of countermeasure construction costs, and evaluate countermeasure construction plans in a short time and without labor. It is an object of the present invention to provide a plan supporting apparatus and a storage medium storing a program for executing the plan supporting apparatus.

[0015]

According to a first aspect of the present invention, there is provided a power distribution system facility planning support device which inputs a current power demand (load) of a power distribution system that changes every moment via a remote monitoring control device. Load data storage means for saving as load data, load estimation means for predicting future power demand based on load data of past and current power demand stored in the load data storage means, and the load estimation means The power supply shortage factor extraction means for extracting the equipment whose predicted power demand exceeds the available capacity and its factor, and for the equipment exceeding the available capacity, eliminating the factor and adding a new factor A countermeasure deriving means for deriving a countermeasure construction plan that does not cause a problem, and a countermeasure construction cost calculating means for calculating a countermeasure construction cost for the countermeasure construction plan derived by the countermeasure derivation means. Than it is.

According to a second aspect of the present invention, there is provided a distribution system facility planning support apparatus according to the first aspect, wherein an accident case occurring in an actual distribution system is stored every time. And an accident estimating means for calculating a supply obstruction situation using an accident case that occurred in the past in the distribution system in the future of the countermeasure construction plan and stored in the accident case storing means. .

In the power distribution system facility planning support device according to claim 3 of the present invention, in claim 1, each time a measure construction plan is derived by the measure deriving means, the measure construction plan is stored. For the equipment that exceeds the suppliable capacity extracted by the plan storage means and the supply capacity shortage factor extraction means, the same factor or the same equipment is selected from the previous countermeasure construction plans stored by the measure plan storage means. And a measure display means for displaying a related measure construction plan.

According to a fourth aspect of the present invention, there is provided the distribution system facility planning support device according to the first aspect, wherein the countermeasure work cost calculation means uses a calculation constant to change a calculation constant when calculating the countermeasure work cost. It has a constant correction means, and the countermeasure construction cost calculation means can calculate a countermeasure construction cost by the changed calculation constant every time the calculation constant is changed by the calculation constant correction means.

In the power distribution system facility planning support device according to claim 5 of the present invention, in claim 1, a countermeasure storage means is provided, and countermeasure construction cost of the countermeasure construction plan derived by the countermeasure derivation means is taken as a countermeasure. In order to further reduce this countermeasure construction cost, the countermeasure derivation unit calculates the countermeasure construction plan and the other countermeasure construction plans saved by the countermeasure plan storage unit to calculate the countermeasure construction cost. Alternatively, a measure construction simultaneous arrangement means for judging whether or not the facilities are the same and calculating a measure construction cost excluding waste caused by construction and facility simultaneous arrangement is added.

According to a sixth aspect of the present invention, there is provided a distribution system facility planning support apparatus according to any one of the first to fifth aspects, wherein the supply system shortage factor extracting means is provided. In order to evaluate the optimal equipment plan formulation based on the supply power shortage factor saved in the above, the countermeasure construction draft, and the countermeasure construction cost saved by the countermeasure construction simultaneous arrangement means, the evaluation conditions ( Evaluation condition setting means for setting supply power shortage, allowable range of countermeasure construction costs, etc., and evaluation judging means for outputting evaluation results from a plurality of countermeasure construction plans in descending order of evaluation based on the set evaluation conditions. Is added.

The storage medium according to claim 7 of the present invention is:
In a distribution system equipment planning support device that supports an introduction and renewal plan of each device constituting a distribution system generated by an increase in power demand (load), load data is transmitted via a remote monitoring control device to a constantly changing power demand of the distribution system. A function of executing load data storage means to be taken in as a function of executing load estimation means for predicting future power demand based on load data of past and current power demand stored in the load data storage means, Insufficient power to extract future power demand predicted by the load estimating means and the available capacity of each facility constituting the distribution system and to extract facilities that exceed the available capacity and their factors as factors of insufficient power Executes a function for executing factor extraction means and executes a measure deriving means for deriving a countermeasure construction plan for eliminating the factor for equipment having exceeded the available capacity. Noh, a storage medium storing a program for executing the function of executing the countermeasure work costs calculation means for calculating a countermeasure work costs for remediation work proposed the measures deriving means is derived.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (corresponding to [Claim 1]) FIG. 1 is a configuration diagram showing an embodiment of a distribution system facility planning support apparatus according to [Claim 1] of the present invention. In FIG. 1, reference numeral 1 denotes a distribution system facility planning support device, and 2 denotes a remote monitoring control device. The distribution system facility planning support device includes a load data storage unit 11, load data 12, a load estimation unit 13, and an assumed maximum load data 14. , Equipment DB 15, supply power shortage factor extraction means 16, supply power shortage factor 17, measure derivation means 18, measure construction plan 19, calculation constant data 191, measure construction cost calculation means 192, measure construction cost 193, CRT input / output device 19
Consists of four.

In FIG. 1, load data 12 is a measured value of a current and a voltage of each distribution system equipment taken in a fixed cycle via the remote monitoring control device 2 by the load data storage means 11, and the past and present electric power are measured. Demand. The operator will report on the future (E.g.
By inputting from the input / output device 194, the load estimating means 13
Automatically calculates an assumed maximum load of future power demand based on the past and present power demand stored in the load data 12 and then saves it in the assumed maximum load data 14 to extract supply power shortage factor Activate means 16.

FIG. 2 is a flow chart of the load estimating means 13.
Shown in First, the past and present power demands stored in the load data 12 are fetched (S21). From the past and present power demands, the growth rate of the power demand so far is obtained (S22). Multiply the current power demand by this growth rate to get C
The power demand in the future (such as the Christian era) input from the RT input / output device 194 is determined (S23). The obtained future power demand is stored as the assumed maximum load in the assumed maximum load data 14 (S24).

The assumed maximum load data 14 is the load estimating means 1
3 is a file for storing the maximum future load assumed for each facility. The facility DB 15 is a file that stores the connection of each facility in the distribution system and the suppliable capacity. The supply power shortage factor extraction means 16 calculates the estimated maximum load data 14,
With reference to the equipment DB 15, the equipment in which the assumed maximum load exceeds the suppliable capacity, the factors (bank overload, distribution line overload, section current excess, voltage drop) and the suppliable excess amount are extracted. Is stored in the supply power shortage factor 17 and the countermeasure deriving means 18 is activated.

The countermeasure deriving means 18 derives a countermeasure construction plan corresponding to the equipment and the factor stored in the supply capacity shortage factor 17 as follows and saves the countermeasure construction plan 19 as a countermeasure construction cost. The calculating means 192 is started. Supply power shortage factor 1 extracted by supply power shortage factor extraction means 16
7 has different measures to be considered depending on the factors. Fig. 3 shows the items to consider for each factor. The countermeasure deriving means 18 derives a countermeasure construction plan for each factor based on the list of countermeasure study items by factor in FIG.

FIG. 4 is a flow chart of the measure deriving means 18.
Shown in First, load switching measures are taken (S4
1). If the cause is eliminated by the load switching measure, the on / off state of the distribution switchgear changed by the load switching is taken as a measure (S43). If the cause is not eliminated by the load switching measure, if the cause is excess section current or excessive voltage drop, section enhancement measures are taken (S45).

If the cause is eliminated by the section reinforcement measure, the section and power distribution section switch that have been strengthened are taken as a measure (S47). If the factor is not resolved by section reinforcement measures,
As a countermeasure plan, increase or newly install distribution lines (banks) (S4
8) The distribution switchgear whose on / off state has changed due to the determination of the system to which the distribution line (bank) that has been reinforced or newly installed is set as a countermeasure (S49).

Details of each measure examination item of the measure deriving means 18 will be described with reference to FIG. The load switching measure is to select another distribution system line linked to the distribution system line of the factor generating equipment by the interconnection other line selection processing 181 and to perform factor generation distribution by the adjacent section switching processing 182 for the selected other distribution system line. The section of the system line is sequentially switched, and the load on the factor generating distribution system line is reduced by the suppliable excess amount to eliminate the cause.

At this time, load switching which causes a new factor in other distribution system lines is not performed. Figure 6 shows an example of load switching
If it explains using, the breaker FCB1
Is overloaded, first, the other distribution system lines (other lines A, B, and C) that are linked by the normally open switch in the distribution system line from FCB1 are selected.

Next, in order to sequentially switch the section adjacent to the selected other line to another line, the other line A has the section D, the other line B has the section H, the other line C has the section I and the other line B has the section. G
To eliminate the distribution line overload of the FCB1 (if the line is switched to the other line A to the section C, the supply capacity of the other line A will be exceeded, so that the switching is not performed).

In the section reinforcement measures, the wire type and the wire size corresponding to the excess amount that can be supplied are determined by the reinforcement section size determination processing 183 for the span of the factor generating equipment, and the power distribution is performed by the reinforcement switch size determination processing 184. Also, the switchgear for each of the units determines the capacity of the switch corresponding to the excess amount that can be supplied and eliminates the factor.

The distribution line (bank) reinforcement / new construction measures are to determine the distribution line capacity or the bank capacity corresponding to the excess supplyable amount by the distribution line (bank) size determination processing 185 for the distribution line or the bank of the factor generating equipment. And eliminate the cause. If the cause is not resolved, the new distribution line belonging system determination processing 186 determines a continuous section group that is interconnected with another distribution system line corresponding to the excess supply available for the distribution line of the factor generating equipment, by the new distribution line belonging system. And

Then, the capacity of the newly installed distribution line is set to a capacity corresponding to the system to which the newly installed distribution line belongs by the new installation distribution line size determination processing 187, so that the distribution system for the existing bank in the substation to which the distribution line of the factor generating equipment belongs is assigned. Establish a new line. If there is no existing bank where a new distribution system line can be established,
By the augmented bank size determination processing 188, the capacity of the existing bank is increased, or if the capacity cannot be increased, a new bank is installed in the substation to which the existing bank belongs, and the new distribution system line is made to belong.

If a new bank cannot be established, a new substation is newly established by a new substation determination process 189, and then the newly established bank is determined as a bank to which the new substation belongs. The system to which the new distribution line belongs will also be the equipment to which the new substation belongs. The factors will be eliminated by these measures.

Next, the countermeasure construction cost calculating means 192 calculates the calculation constants such as the construction unit price, the interest rate, the cost depreciation cost, the fixed asset tax, the business tax, the loss unit price of the countermeasure construction plan 19 and the preset calculation constant data 191. The cost of the countermeasure construction is calculated based on the calculated cost and stored in the countermeasure construction cost 193. The calculation of the cost of the countermeasure work is the same as in JP-A-4-54828, and the description is omitted.

As described above, FIG. 7 shows an overall processing flow of claim 1 in which the facility planning is completely performed automatically. S
At 71, a future load is assumed, and at S72, a supply shortage factor is extracted. In S73, a countermeasure construction plan is derived, and in S74, a countermeasure construction cost is calculated.

According to the present embodiment, the power demand expected in the future can be automatically assumed without bothering the operator. In addition, it is possible to execute a series of equipment planning work from the estimation of future power demand to the calculation of countermeasure construction costs without any operator's hand, and to improve the accuracy of equipment planning and to save labor. It can greatly contribute to the development.

(Corresponding to [Claim 2]) FIG. 8 is a configuration diagram showing an embodiment of a distribution system facility planning support apparatus according to [Claim 2] of the present invention. 8, the same functional portions as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. In the present embodiment, an accident that has actually occurred in the past is added as one of the accidents that may occur in the future.
2 and the accident assumption means 23.

In FIG. 8, the accident case storage means 21 works on the state of on / off (including an accident factor such as ground fault, short circuit, etc.) of the equipment constituting the power distribution system via the remote monitoring control device 2, and Substation accidents, bank accidents, distribution line accidents, etc., and categorizes accident information in chronological order.
Save to The on / off of the equipment constituting the distribution system (including the cause of the accident) is taken in from the remote monitoring control device 2 and the detection of an accident in the distribution system is performed by the distribution system monitoring system itself that monitors and controls the distribution system, which is a conventional technique. Yes, explanation is omitted.

In FIG. 1, a future system state is created by a countermeasure work plan for new installation or reinforcement of each facility constituting the distribution system based on the power demand at the assumed maximum load in the future. When an accident is assumed to occur in the system state, any accident case (substation accident, bank accident, distribution line accident) that has occurred in the past is generated based on the accident information stored in the accident case storage unit 21. In addition, measures for countermeasures for new installation or reinforcement of each facility constituting the distribution system are derived.

FIG. 9 is a flowchart of the accident estimating means 23.
Shown in First, the measure construction plan derived by the measure deriving means is fetched (S91). The content of the simulated accident is selected from the taken countermeasure construction plan (S92). The selected case is compared with a past accident, and the closest case is taken from the accident case (S93).

An accident is simulated from the taken accident case (S94). Measures for switching the load in the healthy section are taken (S95). As a result of the above (S95), it is determined whether there is a supply obstruction (S96). If there is a supply hindrance in the judgment of (S96), measures to increase the section are taken (S9).
7). If there is no supply obstacle in the judgment of (S96), a countermeasure construction plan is derived because a countermeasure can be taken by switching the load.

As a result of the above (S97), it is determined whether or not there is a supply obstruction (S98). If there is a supply obstruction in the judgment of (S98), the distribution lines and banks are strengthened or newly installed (S99). Based on the measures (S97) and (S99), the section reinforcement result or the distribution line reinforcement / new construction result is taken as a countermeasure construction plan (S991). If there is no supply obstacle in the judgment of (S98), the result of the section reinforcement measure is taken as the measure construction plan.

The countermeasure construction plan derived by the accident assumption means 23 is stored in the countermeasure construction plan 19 as in FIG. The started countermeasure construction cost calculation means 192 calculates the cost of the countermeasure construction in the same manner as in FIG.

According to the present embodiment, in the case of formulating an equipment plan that assumes an accident that may occur in the future based on the countermeasure construction plan derived by the distribution system equipment planning support device of FIG. By using this, it is possible to easily assume an accident that is close to reality, and the accuracy of equipment planning can be further improved.

(Corresponding to [Claim 3]) FIG. 10 is a configuration diagram showing an embodiment of a distribution system facility planning support apparatus according to [Claim 3] of the present invention. 10, the same reference numerals are given to the same functional portions as those in FIG. 1, and description thereof will be omitted.
In the present embodiment, by displaying the countermeasure construction plans derived so far, it is possible to easily create a new countermeasure construction plan at the discretion of the operator. The configuration added for that purpose is a measure proposal display means 31, a measure construction plan (actual) 32, and a measure plan storage means 33.

Next, only the operation part different from that in FIG. 1 will be described. Each time the countermeasure derivation means 18 derives a countermeasure construction plan, it is stored in the countermeasure construction plan 19 and the countermeasure construction cost calculation means 192 is started. The plan storage unit 33 is also activated.
The activated measure plan storage means 33 stores the measure construction plan 19 in the measure construction plan (actual) 32 each time. From the data of the supply power shortage factor 17, the operator indicates that the supply power shortage factor 1
A countermeasure construction plan for solving the problem 7 is created and input to the distribution system facility planning support device.

The countermeasure construction plan input by the operator is stored in the countermeasure construction plan 19 and the countermeasure construction cost calculation means 192 is started. When the operator intends to create a countermeasure construction plan, the countermeasure construction plan (actual) 32 that has been derived so far and stored in the countermeasure plan storage unit 33 is displayed as a countermeasure plan display unit 31.
On the CRT input / output device 194. The operator manually creates an optimal countermeasure construction plan while referring to the displayed countermeasure construction plan that has been derived so far.

According to the present embodiment, by providing a countermeasure construction plan derived so far to the operator, a new countermeasure construction plan can be easily created by the operator's judgment, and the accuracy of the equipment plan formulation can be further improved. Can be improved.

(Corresponding to [Claim 4]) 114 is a configuration diagram showing an embodiment of a distribution system facility planning support apparatus according to [Claim 4] of the present invention. 11, the same reference numerals are given to the same functional portions as in FIG. 1, and the description will be omitted.
In the present embodiment, the calculation constant data used in the distribution system facility planning support device can be corrected each time it changes. The configuration added for that purpose is calculated constant correction means 4.
1 and a unit price management system 3.

Next, the operation of only the parts different from those in FIG. 1 will be described.
Is automatically updated based on information from the unit price management system 3 in accordance with revision of calculation constants (construction unit price, interest rate, depreciation cost, fixed asset tax, business tax, loss unit price, etc.), or calculation constant data 191 is displayed on the CRT input / output device 194, the operator arbitrarily sets a calculation constant, and updates the calculation constant data 191 with the set calculation constant. The countermeasure construction cost calculating unit 192 calculates a more accurate countermeasure construction cost based on the countermeasure construction plan 19 and the calculation constant data 191 updated by the calculation constant correction unit 41, and stores the calculated cost in the countermeasure construction cost 193.

According to the present embodiment, the calculation constant data used in the distribution system equipment planning support apparatus of FIG.
Being able to make corrections can further improve the accuracy of equipment planning.

(Corresponding to [Claim 5]) FIG. 12 is a configuration diagram showing an embodiment of a distribution system facility planning support apparatus according to [Claim 5] of the present invention. 12, the same reference numerals are given to the same functional portions as in FIG. 1, and the description will be omitted.
In the present embodiment, based on the results derived in the countermeasure construction plan, the countermeasure construction cost is corrected simultaneously by collective construction and arrangement of equipment. The configuration added for that purpose is a countermeasure construction plan (actual) 32 and a countermeasure plan storage unit 33.
And countermeasure construction simultaneous arrangement means 51.

Next, the operation for the difference from FIG. 1 will be described. The countermeasure plan storage unit 33 is activated every time the countermeasure derivation unit 18 derives the countermeasure construction plan 19, and stores the countermeasure construction plan 19 in the countermeasure construction plan (actual) 32. The countermeasure construction cost calculating means 192 calculates the cost of the countermeasure work based on the countermeasure work plan 19 and the calculation constant data 191, and activates the countermeasure work simultaneous arrangement means 51.

The activated countermeasure construction simultaneous arrangement means 51 is
In the countermeasure construction plan 19 and the countermeasure construction plan (actual) 32 stored by the countermeasure plan storage means 33, it is checked whether the countermeasure construction execution time is the same or there is no construction of the same equipment. If you have the same or the same equipment,
Correction (reduction) of the countermeasure construction cost by collective construction and arrangement of equipment is performed, and saved in the countermeasure construction cost 193.

According to the present embodiment, construction costs can be further reduced by simultaneously arranging countermeasure construction plans derived by the distribution system facility planning support apparatus.

(Corresponding to [Claim 6]) FIG. 13 is a block diagram showing an embodiment of a distribution system facility planning support apparatus according to [Claim 6] of the present invention. 13, the same reference numerals are given to the same functional portions as those in FIGS. 1, 8, 10 to 12, and the description will be omitted. In the present embodiment, the overall configuration is based on the configuration of the first embodiment, and the individual functions shown in the first to fifth embodiments are added thereto.

The individual configurations and operations have already been described in the respective embodiments, and thus will be omitted, and the operations of only the parts unique to the present embodiment will be described. First, the evaluation condition setting means 61 stores the evaluation condition data 62 in the CRT input / output device 1.
Display at 94. The operator confirms the displayed contents and resets the evaluation conditions as necessary. Upon completion of the setting, the evaluation condition setting means 61 is activated, and the evaluation condition data 62 is set.
Is updated, the evaluation determination means 63 is activated.

The evaluation determining means 63 derives the supply power shortage factor 17 stored by the supply power shortage factor extracting means 16, the countermeasure construction plan 19 derived by the countermeasure deriving means 18, or the accident deducing means 23. Countermeasure construction plan 19, or
Countermeasure construction plan 19 that the operator independently considered and entered
Is evaluated on the basis of the evaluation condition data 62 based on the evaluation condition data 62 of the countermeasure construction plan (actual result) 32 stored by the countermeasure plan storage unit 33 and the countermeasure construction cost 193 stored by the countermeasure construction simultaneous arrangement unit 51. The results are displayed on the CRT input / output device 194 in order.

FIG. 14 shows a follow chart of the evaluation judging means 63. First, the evaluation condition data set by the evaluation condition setting means is read (S141). The subsequent processing is repeated for the number of countermeasure construction plans (actual results) (S142). One of the countermeasure construction plans is taken out from the countermeasure construction plan (actual results), and the factor of supply shortage and the countermeasure construction cost corresponding to the countermeasure construction plan are read (S143). It is determined whether the countermeasure construction plan, the supply shortage factor corresponding to the countermeasure construction plan, and the countermeasure construction cost all satisfy the conditions of the evaluation condition data (S144).

If the conditions are not satisfied, the next countermeasure construction plan is processed. If the conditions are satisfied, compare the proposed countermeasure work, the factor of insufficient supply capacity corresponding to the proposed measure, the countermeasure construction cost and other measures already evaluated, the factor of insufficient supply capacity, and the measure cost To determine the evaluation order, and rearrange them in the order of higher evaluation order (S14).
5).

This is repeated for several minutes of the countermeasure construction plan (actual results), and when all the evaluations are completed, the results (things that do not satisfy the evaluation conditions are not displayed, and those that satisfy the conditions have high evaluations). (Displayed in order) on the CRT input / output device. Based on the display result, the operator decides to formulate an optimal equipment plan.

According to the present embodiment, among a plurality of construction plans for preparing a facility plan, factors of supply shortage, countermeasure construction plans, and countermeasure construction costs are evaluated according to the evaluation conditions of the operator, and the evaluation results are output. Therefore, it greatly contributes to labor saving of the operation of formulating an optimal equipment plan by the operator.

The method described in each of the above descriptions is as follows.
As a program that can be executed by a computer, for example, the program can be written in a storage medium such as a magnetic disk, an optical disk, or a semiconductor memory and applied to various devices, or transmitted to a communication medium and applied to various devices. Also, a computer that implements these processes reads the program stored in the storage medium, and executes the above-described processing by controlling the operation of the program.

[0066]

As described above, according to the present invention, calculation and input of power demand expected in the distribution system facility planning support apparatus, creation of an accident case that may occur in the future, and creation of a countermeasure construction plan according to the present invention. In addition, it is possible to realize the change of various calculation constants used in the construction cost calculation, the minimization of the cost of the countermeasure construction cost, and the evaluation of the measure for the construction of the countermeasure in a single time and without labor.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of [claim 1].

FIG. 2 is a flowchart of a load assumption process of FIG. 1;

FIG. 3 is a list of countermeasure study items by factor in FIG. 1;

FIG. 4 is a flowchart of a countermeasure plan deriving process in FIG. 1;

FIG. 5 is a configuration diagram of each measure examination item of the measure deriving means of FIG. 1;

FIG. 6 is an example of load switching in FIG. 1;

FIG. 7 is a processing flowchart of FIG. 1;

FIG. 8 is a configuration diagram showing an embodiment of [claim 2].

9 is a flowchart of an accident assumption process of FIG.

FIG. 10 is a configuration diagram showing an embodiment of [claim 3].

FIG. 11 is a configuration diagram showing an embodiment of claim 4.

FIG. 12 is a configuration diagram showing an embodiment of [claim 5].

FIG. 13 is a configuration diagram showing an embodiment of [claim 6].

FIG. 14 is a flowchart of an evaluation determination process in FIG. 13;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 distribution system equipment planning support device 2 remote monitoring control device 11 load data storage means 12 load data 13 load estimation means 14 maximum assumed load 15 equipment DB 16 supply power shortage factor extraction means 17 supply power shortage factor 18 countermeasure derivation means 19 countermeasure construction Plan 191 Calculation constant data 192 Measure construction cost calculation means 193 Measure construction cost 194 CRT input / output device 21 Accident case storage means 22 Accident case 23 Accident assumption means 31 Measure plan display means 32 Measure construction plan (actual) 33 Measure plan save means 41 Calculation constant correction means 42 Unit price management system 51 Countermeasure construction simultaneous arrangement means 61 Evaluation condition setting means 62 Evaluation condition data 63 Evaluation judgment means

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Toshiaki Hanano 2-4-1 Nagahama, Chuo-ku, Fukuoka City, Fukuoka F-term (reference) 5G066 AA02 AA03 AE07 AE09

Claims (7)

[Claims] 1. A power distribution system facility planning support apparatus for supporting an introduction and renewal plan of each facility constituting a power distribution system caused by an increase in power demand, the power demand of the power distribution system changing from time to time via a remote monitoring control device. Load data storage means for taking in as load data, load estimation means for predicting future power demand based on load data of past and current power demand stored in the load data storage means, prediction by the load estimation means A power supply shortage factor extracting means for comparing the future power demand with the available capacity of each facility constituting the distribution system and extracting the facilities that exceed the available capacity and the factors as the shortage factor; Measures deriving means for deriving a countermeasure construction plan for eliminating the factor for the equipment exceeding the available capacity, and a countermeasure construction plan derived by the countermeasure deriving means. A distribution system facility planning support device, comprising: a countermeasure construction cost calculation means for calculating a countermeasure construction cost. 2. The distribution system facility planning support apparatus according to claim 1, wherein accident information storage means for storing accident information generated in an actual distribution system as an accident case, and a past information stored by said accident case storage means. A power distribution system facility planning support apparatus, comprising: an accident assumption means for calculating a supply obstruction state based on an accident case that has occurred in the above, and further deriving a countermeasure construction plan for eliminating the cause from the supply obstruction state. 3. The distribution system facility planning support device according to claim 1, wherein each time a countermeasure construction plan is derived by the countermeasure derivation unit, a countermeasure plan storage unit that always saves the countermeasure construction plan,
For equipment that exceeds the suppliable capacity extracted by the supply capacity shortage factor extraction means, the same factor or the countermeasure work plan related to the equipment is selected from the countermeasure work plans previously stored by the countermeasure plan storage means. And a countermeasure display means for displaying a message. 4. The distribution system facility planning support device according to claim 1, further comprising a calculation constant correction means for changing a calculation constant by use of the countermeasure work cost calculation means when calculating the countermeasure work cost. The distribution system facility planning support device, wherein the cost calculation means calculates the countermeasure construction cost based on the changed calculation constant every time the calculation constant is changed by the calculation constant correction means. 5. The distribution system facility planning support device according to claim 1, wherein each time a countermeasure derivation unit derives a countermeasure construction plan, the countermeasure plan storage unit stores the countermeasure construction plan, and Judgment of whether the implementation time of the construction is the same time or the same extension or new facilities based on the saved construction plan, and the means for simultaneous construction of the construction works to minimize the construction cost of the construction by the simultaneous arrangement of construction and facilities A distribution system facility planning support device, comprising: 6. In each of the distribution system facility planning support devices according to claim 1, the formulation of an optimal facility plan is evaluated based on a factor of insufficient supply capacity, a countermeasure construction plan, and a countermeasure construction cost. Evaluation condition setting means for setting evaluation conditions to perform the evaluation, and output the evaluation results from the plurality of countermeasure construction plans in descending order of evaluation based on the set evaluation conditions, so that the operator can formulate an optimal equipment plan. A power distribution system facility planning support device comprising: an evaluation determining unit that provides information for deriving the power distribution system. 7. A power distribution system facility planning support apparatus for supporting an introduction and renewal plan of each facility constituting a power distribution system caused by an increase in power demand, the power demand of the power distribution system changing every moment via a remote monitoring control device. A function of executing load data storage means for taking in as load data, and a function of executing load estimation means for predicting future power demand based on load data of past and current power demand stored by the load data storage means And comparing the future power demand predicted by the load estimating means with the suppliable capacity of each facility constituting the distribution system to extract facilities that exceed the suppliable capacity and their factors as factors for the shortage of supply capacity. Function to execute power shortage factor extraction means and execution of measure derivation means to derive a countermeasure construction plan for equipment that exceeds the available capacity A computer-readable storage medium storing a program for executing a function of executing a countermeasure construction cost calculation unit for calculating a countermeasure construction cost for a countermeasure construction plan derived by the countermeasure derivation unit.