JP2000358327A - Power distribution system monitoring apparatus and storage medium with control sequence stored therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deal with fault occurring time or to switch a system in advance by analyzing whether there is a possibility of power transmission to a sound power interruption zone and the like, when the fault occurs for a present load state. SOLUTION: A power distribution system monitoring apparatus refers to a system data base 14, forms loads of respective zones belonging to a power distribution line from a load of the distribution line input from a remote monitor controller 10 in a zone load data storage area 13, performs extraction 15 of a fault occurring zone possible to form a power supply sequence to the sound power interruption zone except at the fault zone when the fault occurs, and sets a system 16 to be analyzed. The apparatus performs analysis 17 of the possibility of forming the power transmission sequence satisfying a voltage condition and a current condition based on the zone load data of the area 13, and displays the analyzed result on a display device 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution system monitoring device for monitoring a distribution system, and a storage medium storing a control procedure thereof.

[0002] Distribution system monitoring has conventionally been performed in combination with a remote monitoring control device. FIG. 37 shows a configuration diagram of a conventional distribution system monitoring device, in which a current system state is monitored based on monitoring information such as voltage and current of a distribution line input from a remote monitoring control device 10. . That is, based on the monitoring information such as the voltage and current of the distribution line input from the remote monitoring control device 10 and the distribution system configuration from the system database 11 and the information such as the contract load of each section, the section load creating means 12 Section load data is created and stored in the section load data storage area 13. Then, the data is translated into a form that can be understood by a human system by the system monitoring unit 371 and is displayed on the display device 20 via the analysis result display unit 19.

[0003] However, the analysis of the monitoring information is as simple as the excess of the capacity of each device constituting the distribution system, and the excess of the current of each device is exceeded when the current value is acquired. I was watching for any.

Further, in monitoring the harmonics of the distribution system, only the measured harmonics are monitored based on data input from the remote monitoring control device 10. In monitoring the voltage of the distribution system, only the output voltage of the distribution line is monitored based on the data input from the remote monitoring control device 10.

[0005]

In the conventional distribution system monitoring device 11, the analysis of the information from the remote monitoring and control device 10 is as simple as the excess of the capacity of each device in the distribution system. It was not possible to analyze the strength of the system with respect to the load, that is, whether or not power transmission was possible in a healthy blackout section when an accident occurred. For this reason, personnel arrangements in the event of a major disaster such as a typhoon and prior system switching have been left to human intuition.

Conventionally, the current excess of each device is checked at the time of the current excess or at the time of the accommodating calculation. Until that time, the situation of the current excess cannot be determined. For this reason, it was not possible to take measures against the prediction of excess current in advance.

In addition, the monitoring of the harmonics of the distribution system and the monitoring of the voltage of the distribution system are limited to monitoring only the harmonic measurement values and monitoring only the transmission voltage of the distribution line based on data input from the remote monitoring control device 10. Therefore, only the measurement results were managed in a graspable manner. For this reason, it is not possible to perform analysis that is related to customer information having harmonic generation equipment, nor is it possible to analyze the current section voltage, the terminal voltage drop, and the voltage rise due to the Ferranci effect. It was left to the judgment of the system.

[0008] In view of the above, the present invention analyzes the current load condition, such as whether or not power transmission is possible in a healthy power failure section at the time of an accident, and responds to the occurrence of an accident or takes advance measures. In addition to enabling system switching, analysis related to customer information with harmonic generation equipment, current section voltage analysis, analysis of terminal voltage drop and voltage rise due to the Ferranci effect, etc. are linked to the system configuration. It is an object of the present invention to provide a distribution system monitoring device capable of performing and giving an accurate instruction, and a computer control program therefor, that is, a storage medium storing a control procedure.

[0009]

According to a first aspect of the present invention, there is provided a distribution system monitoring apparatus according to a system database for storing the capacity and connection state of each device constituting a distribution system, and system configuration data of the system database. A section load creating means for creating the load of each section belonging to the distribution line as section load data from the load of the distribution line input from the remote monitoring control device, Analysis target system extraction means for extracting an accident occurrence section where there is a possibility that a power transmission procedure to a section can be created, an analysis target system database for storing the sections extracted by the analysis target system extraction means, For each section stored in the target system database, the voltage condition and the current condition are set based on the section load assumed by the section load creating means. Plus power transmission procedure determines whether it is possible to create a system analysis unit that stores the analysis result data, characterized in that it comprises an analysis result display means for displaying the analysis result data by the system analysis unit on the display device.

According to this distribution system monitoring device, the load of each section belonging to the distribution line is created as section load data from the load of the distribution line input from the remote monitoring control device by referring to the system database. In the event of an accident, an accident occurrence section in which it is possible to create a power transmission procedure to a healthy power outage section other than the accident section is extracted and set as an analysis target section. For each section, based on the section load data,
Analyzing whether the power transmission procedure can be created and displaying the analysis result on a display device. Therefore, since the strength of the system with respect to the current load, that is, whether or not power transmission is possible in a healthy power outage section at the time of an accident is known in advance, it is possible to perform personnel allocation at the time of a major disaster or prior system switching.

According to a second aspect of the present invention, there is provided a power distribution system monitoring device, comprising: a power system database for storing capacities and connection states of devices constituting a power distribution system; Section load creating means for creating the load of each section belonging to the distribution line from the load of the input distribution line as section load data,
An accident section setting means for the operator to arbitrarily set an accident section from the display device and storing the same in the accident section setting data, and a section load assumed by the section load creating means for the accident section stored in the accident section setting data. Based on the system, determine whether it is possible to create a power transmission procedure that satisfies the voltage condition and the current condition, system analysis means to save as analysis result data, and analysis result display means to display the analysis result data on the display device It is characterized by having.

According to this distribution system monitoring device, the load of each section belonging to the distribution line is created as section load data from the load of the distribution line input from the remote monitoring control device with reference to the system database. The display device analyzes and displays whether or not a power transmission procedure that satisfies the voltage condition and the current condition can be created for an accident section arbitrarily set by the operator. Therefore, the strength of the system with respect to the current load, that is, whether or not power transmission is possible
Since it is possible to check the section intended by the operator, based on this analysis result, it is possible to arrange personnel in the event of a major disaster such as a typhoon or to switch the system in advance, making it extremely effective for monitoring and operating the distribution system It is.

According to a third aspect of the present invention, there is provided a distribution system monitoring apparatus, comprising: a system database for storing the capacity and connection state of each device constituting the distribution system; and a system for a customer having a harmonic generation device existing on the distribution system. A customer harmonic related device information database that stores harmonic related device information, and a distribution input from a remote monitoring control device according to system configuration data of the system database and harmonic related device data of the customer harmonic related device information database. A section-based harmonic information creating means for creating section-based harmonic information data of each section belonging to the distribution line from the measured value of the electric wire, and the section-based harmonic information data, the system database, and the customer harmonics A harmonic analysis means for analyzing current harmonic information of each section stored in the system database from the related device information database; Characterized in that it comprises an analysis result display means for displaying an analysis result data generated by the harmonic analysis means to display.

[0014] According to this distribution system monitoring device, the section-based harmonic information creation means receives the harmonic measurement value data of each distribution line, which is input at regular intervals from the remote monitoring control device, and receives the system database and customer harmonics data. With reference to the related device information database, the harmonic information for each section is stored in the harmonic information data for each section. Then, the harmonic analysis unit compares the section-specific harmonic information data with a harmonic reference value determined by the current system configuration of each section stored in the system database, and determines whether the data is within the range of the operation reference value. The analysis result data is stored in the analysis result data storage area 18 and displayed on the display device. Therefore, in the harmonic monitoring of the power distribution system, the data input from the remote monitoring control device is not simply used to monitor only the harmonic measurement value, but to associate the system configuration with the customer information having the harmonic generating device. Analysis can be performed, and appropriate measures can be taken based on the analysis results.

According to a fourth aspect of the present invention, there is provided a power distribution system monitoring device, comprising: a system database for storing the capacity and connection state of each device constituting the power distribution system; and a remote monitoring control device according to the system configuration data of the system database. Section load creating means for creating the load of each section belonging to the distribution line from the load of the input distribution line as section load data,
The section voltage database storing the voltage of the main section belonging to the distribution line input from the remote monitoring control device, and the section voltage data of the section voltage database according to the section configuration data and the section load data of the section database, Section voltage analysis means for analyzing the section voltage of
And a section voltage analysis display unit for displaying the section voltage analysis data of the section voltage analysis unit on a display device.

According to this distribution system monitoring device, while referring to the system database, the load of each section belonging to the distribution line is created as section load data from the load of the distribution line input from the remote monitoring control device. The voltage data of the main section belonging to the distribution line input from the remote monitoring control device is obtained. Then, the current section voltages are analyzed from the system configuration of the system database and the section voltage data of the section voltage creating means, and displayed on the display device. Therefore, it is possible to compare and monitor the voltage of each section with the operation reference voltage in consideration of the current load condition, the voltage of the main point, and the system configuration as well as the voltage monitoring based on the data input from the remote monitoring control device. It is very effective for monitoring and operating the distribution system.

According to a fifth aspect of the present invention, there is provided a power distribution system monitoring device, comprising: a power system database for storing capacities and connection states of devices constituting the power distribution system; and a remote monitoring control device according to the power system configuration data of the power system database. Load data storage means for storing the load of each section belonging to the distribution line and the passing current of each switch as load data based on the input distribution line load, and each device based on the load data and the system database. Load analysis means for analyzing the load state of the device and storing the analysis result data as data, and load state display means for displaying the analysis result data on a display device. It is characterized in that the margin is always displayed.

According to this distribution system monitoring device, the system database is referenced, and the load of each section belonging to the distribution line and the passing current of each switch are determined from the load of the distribution line input from the remote monitoring control device. Based on the load data and the system database, the load state of each device is analyzed, and the reserve result (= allowable load value-current load value) is obtained from the analysis result data. Always display the electrical capacity margin of the device. Therefore, not only monitoring by the data input from the remote monitoring control device, but also the reserve capacity can be accurately grasped in consideration of the current load condition and system configuration, which is extremely effective for monitoring and operation of the distribution system. It is.

According to a sixth aspect of the present invention, there is provided a power distribution system monitoring device, comprising: a power system database for storing capacities and connection states of devices constituting the power distribution system; and a remote monitoring control device according to the power system configuration data of the power system database. Section load creating means for creating the load of each section belonging to the distribution line from the load of the input distribution line as section load data,
Analysis target system extraction means for extracting a branch section group without an interconnecting switch arranged in a tree shape in a distribution system and an accident occurrence section where transmission procedures to the branch section group cannot be created,
A system analysis means for determining whether or not the section load data of each branch section group exceeds a certain standardized load amount and causing a serious supply hindrance in the event of an accident, and storing the results in the analysis result data; And an analysis result display means for displaying the result on a display device.

According to this distribution system monitoring device, the load of each section belonging to the distribution line is created as section load data from the load of the distribution line input from the remote monitoring control device by referring to the system database. A branch section group having no interconnection switch in the system and an accident occurrence section in which a power transmission procedure cannot be created for the branch section group are extracted. The section extracted by the analysis target system extraction means is stored, and for the stored branch section group without the interconnecting switch, the section load of the section load data becomes equal to or greater than a load amount which has set a certain standard, Analyze whether a serious supply disruption occurs in the event of an accident. An analysis result display means for displaying the analysis result data on a display device is provided. Therefore, in the distribution system operation, if the load exceeds a certain level in the branch section group with no interconnection switch, the branch section group and the fault section where power transmission is not possible due to the occurrence of an accident are displayed, so the current load situation and system configuration Therefore, it is very effective for monitoring and operating the distribution system because the reserve capacity can be accurately grasped in consideration of the situation.

According to a seventh aspect of the present invention, there is provided a power distribution system monitoring device, comprising: a power system database for storing the capacity and connection state of each device constituting the power distribution system; and a remote monitoring control device according to the power system configuration data of the power system database. Section load creating means for creating the load of each section belonging to the distribution line from the load of the input distribution line as section load data,
The operator can arbitrarily set the assumed accident occurrence section from the display device and save the accident section setting data in the accident section setting data, and a branch section group without a connection switch arranged in a tree shape in the distribution system. Analysis target strain extraction means to be extracted;
Judge if the section load data of each branch section group exceeds a certain standardized load and if an accident occurs in the accident section assumed in the accident section setting data, it will become a serious supply obstacle and analyze The system is characterized by comprising system analysis means for storing the result data and analysis result display means for displaying the analysis result data on a display device.

According to this distribution system monitoring device, the load of each section belonging to the distribution line is created as section load data from the load of the distribution line input from the remote monitoring control device with reference to the system database, and The operator sets the accident occurrence section arbitrarily from the display device, saves it in the accident section setting data, and extracts a branch section group without an interconnecting switch. Then, for a branch section group without an interconnecting switch, it is determined whether or not the section load of the section load data becomes a load amount exceeding a certain standard and a serious supply trouble occurs in the event of an accident. The result data is stored and displayed on the display device. Therefore, based on the accident section arbitrarily set by the operator, if the load exceeds a certain level in the branch section group without an interconnecting switch, the branch section group that cannot transmit power due to the occurrence of the accident and the accident section are displayed. The reserve capacity can be accurately grasped in consideration of the load situation and system configuration of the system, which is extremely effective for monitoring and operating the distribution system.

A distribution system monitoring apparatus according to an eighth aspect of the present invention is a distribution system monitoring apparatus that stores the capacity and connection state of each device constituting the distribution system, and a standard state for interconnecting distribution lines based on the system database. The disconnecting switch in the off state is extracted with, the distribution lines to be supplied to both ends of the extracted interconnection switch are searched, and from the higher system of the bank to which each distribution line belongs,
For each interconnection switch on each distribution line, check whether the interconnection switch is an interconnection switch with a different bank and save it in the analysis result data, and display this analysis result data on the display device In the standard operation of the distribution system, it is characterized by always displaying whether the supply facilities on both sides of the interconnection switch are different systems or the same system.

According to the power distribution system monitoring apparatus, a disconnection switch in a disconnected state in a standard state for interconnecting distribution lines is extracted from a system database, and each distribution switch supplying both end sections of the connection switch is extracted. The upper system of the bank to which the electric wire belongs is searched, and for each interconnection switch of each distribution line, it is checked whether or not the interconnection switch is an interconnection switch between different banks, and stored in the analysis result data. Then, based on the analysis result data, it is displayed on the display device whether each interconnection switch is between different banks. Therefore, it is possible to grasp the effects of the interconnecting switch, which is always open, when it is turned on.
It is extremely effective for operation.

According to a ninth aspect of the present invention, there is provided a distribution system monitoring device, comprising: a system database for storing the capacity and connection state of each device constituting the distribution system; and an interconnection switch arbitrarily set by an operator from a display device. Switchgear setting means to specify the switchgear as the system analysis means, and the distribution lines supplying both end sections of the specified switchgear are searched. System analysis means for checking whether the interconnected switch is an interconnected switch with a different bank for each unit and storing it in analysis result data, and analysis result display means for displaying the analysis result data on a display device ing.

According to this distribution system monitoring device, the interconnected switch set by the operator from the display device is stored in the interconnected switch setting data. The disconnection switch in the off state is extracted from the system database in the standard state where each distribution line is connected, and the extracted interconnection switch and the interconnection switch saved in the interconnection switch setting data are the same. When searching for a higher-level system of the bank to which each distribution line that supplies both end sections of the interconnection switch, the interconnection switch for each distribution line is connected to a different bank. Check whether it is and save it in the analysis result data. Based on the analysis result data, the display device 2 determines whether each interconnection switch is between different banks.
Since it is displayed as 0, it is possible to grasp the effects of the connection switch, which is normally open, when it is turned on.
It is extremely effective for operation.

A distribution system monitoring apparatus according to a tenth aspect of the present invention is a switch current ON / OFF state generating means for generating and storing switch ON / OFF state data from switch information input from a remote monitoring control apparatus. And a system database storing the capacity and connection state of each device constituting the distribution system, and extracting a switch in a currently-off state that interconnects each distribution line from the system database and the switch current-on / off state data. Then, the upper system of the bank to which each distribution line supplying both end sections of the switch is located is searched, and for each interconnection switch of each distribution line, whether the interconnection switch is an interconnection switch with a different bank. , And system analysis means for storing the analysis result data in the analysis result data, and analysis result display means for displaying the analysis result data on a display device.

According to this distribution system monitoring device, the switch ON / OFF state data is created from the switch information input from the remote monitoring control device and stored. Then, based on a system database storing the capacity and connection state of each device constituting the distribution system and the switch current ON / OFF state data, a current ON / OFF switch for interconnecting each distribution line is extracted, and the connection thereof is extracted. Search the upper system of the bank to which each distribution line to be supplied to both ends of the system switch, and check whether the interconnection switch is a connection switch with a different bank for each interconnection switch of each distribution line And save it in the analysis result data. Then, based on the analysis result data, whether or not each interconnection switch is an interconnection switch with a different bank is displayed on a display device. Therefore, it is possible to understand the effect of turning off the switch when the switch is turned on.
It is extremely effective for operation.

A distribution system monitoring device according to claim 11 of the present invention is a switch current ON / OFF state generating means for generating and storing switch ON / OFF state data from switch information input from a remote monitoring control device. A system database that stores the capacity and connection state of each device constituting the distribution system, a connection switch setting unit that specifies a connection switch arbitrarily set by an operator from the display device to the system analysis unit, Searches the upper system of the bank to which each distribution line that supplies both end sections of the specified interconnection switch, and for each interconnection switch of each distribution line, the interconnection switch is connected to a different bank. It has system analysis means for checking whether or not the result is stored in the analysis result data, and analysis result display means for displaying the analysis result data on a display device.

According to this distribution system monitoring device, switch current ON / OFF state data is created and stored from the switch information input from the remote monitoring control device. Further, a system database for storing the capacity and connection state of each device constituting the power distribution system, and the interconnection switch set by the operator from the display device are stored in interconnection switch setting data. Then, the currently-connected interconnection switch that interconnects each distribution line is extracted from the system database and the currently-open / closed state data of the switch, and the extracted interconnection switch is stored in the interconnection switch setting data. If it is the same as the interconnecting switch that is located, search for the higher system in the bank to which each distribution line to be supplied to both end sections of the interconnecting switch, and determine if the interconnecting switch differs for each interconnection switch of each distribution line. Check whether the switch is connected to the bank and save it in the analysis result data.
Then, based on the analysis result data, whether or not each interconnection switch is an interconnection switch with a different bank is displayed on a display device. Therefore, it is possible to grasp the influence of turning on the off-state switch, which is arbitrarily set by the operator, which is extremely effective for monitoring and operating the distribution system.

A computer-readable storage medium according to a twelfth aspect of the present invention displays a system database for storing the capacity and connection status of each device constituting a power distribution system, a system database for analysis, and analysis result data. A storage medium storing a control procedure of a distribution system monitoring device having a display device, and belonging to the distribution line from a load of the distribution line input from the remote monitoring control device according to system configuration data of the system database. A section load creation procedure for creating the load of each section as section load data, and an accident occurrence section where there is a possibility that a power transmission procedure to a section other than the accident section can be created by switching equipment when an accident occurs. For the analysis target system extraction procedure, and for each section extracted in the analysis target system extraction procedure, Based on the section load, it is determined whether a power transmission procedure that satisfies the voltage condition and the current condition can be created, and a system analysis procedure to save as analysis result data, and analysis result data by the system analysis procedure are displayed on the display device. A program for causing a computer to execute the analysis result display procedure is stored.

According to this storage medium, in the distribution system monitoring device using the computer, the load of each section belonging to the distribution line is determined from the load of the distribution line input from the remote monitoring control device by referring to the system database. In addition to creating section load data, an accident occurrence section in which it is possible to create a power transmission procedure to a healthy blackout section other than the accident section when an accident occurs is extracted and set as an analysis target section. For each section, whether or not a power transmission procedure can be created is analyzed based on the section load data, and the analysis result is displayed on a display device.
Therefore, the strength of the system with respect to the current load, that is, whether or not power transmission is possible in a sound power failure section at the time of occurrence of an accident, the arrangement of personnel at the time of a major disaster, or prior system switching can be performed.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings.

FIG. 1 is a configuration diagram of a distribution system monitoring device 11 according to a first embodiment of the present invention. The distribution system monitoring device 11 of FIG. 1 includes a system database 14 that stores the capacity and connection state of each device such as a substation, a bank, a distribution line, a high-voltage line, a switch, and a voltage regulator that constitute the distribution system. With reference to the system database 14, the section load creating means 12 for creating the load of each section belonging to the distribution line in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10, Sometimes, an analysis target system extraction means 15 for extracting an accident occurrence section where there is a possibility that a power transmission procedure to a healthy power failure section other than the accident section can be created by switching equipment, and the analysis target system extraction means 15 extracts the accident occurrence section. The analysis target system database 16 storing the analyzed sections, and the respective sections stored in the analysis target system database 16 Based on the made the section load, analyzes the creation possibility of transmission procedure satisfies the voltage and the current conditions, system analysis unit 1 that stores the analysis result in the analysis result data storage area 18
7 and an analysis result display means 19 for displaying the analysis result data in the analysis result data storage area 18 on a display device 20.

The section load data storage area 13 is
Means for storing section load data, and the analysis result data storage area 18 means means for storing analysis result data. This expression method is not limited to this embodiment, but is the same in other embodiments, and is used similarly throughout this specification.

The section load creating means 12 receives the load data of each distribution line, which is input from the remote monitoring control device 10 at regular intervals. Then, the section load creating means 12
With reference to the system database 14, the standard load of the section belonging to the distribution line is taken out, the load data of the distribution line is apportioned by the standard load, and stored in the section load data storage area 13.

The analysis target system extraction means 15 extracts a section to be analyzed and stores it in the analysis target system database 16. Here, the section to be analyzed is a section that can take a plurality of supply routes on the system, and is a group of sections excluding a branch-like section that does not have a connection point on the system and does not have to go.
That is, it means a section that can take a plurality of supply routes.

FIG. 2 shows a conceptual diagram of a system to be analyzed. In this figure, FCB is a feeder breaker of a distribution line. Load data (voltage, current, etc.) of the feeder breaker FCB is measured and sent from the remote monitoring control device 10 to the distribution system monitoring device 11. In the figure, SW1 to SW8 are normally-closed segment switches, and SWt1 is a normally-open segment switch provided for interconnection with other lines. In this figure, the section indicated by the thick line is the section to be analyzed (that is, the section that can take a plurality of supply routes on the system),
The section indicated by the thin line is a section not to be analyzed (a branch-like section that has no connection points on the system and has no connection).

FIG. 3 shows an algorithm for extracting a section to be analyzed.
Then, the distribution lines of all the systems included in the system database 14 are obtained.

The following processing is sequentially repeated for all the distribution lines listed (S302).

That is, in the all interconnection switch list listing process S303, the interconnection switch of the distribution line is obtained from the system database 14. FIG. 4 shows the algorithm.
From the system database 14, the feeder breaker F of the distribution line
CB is obtained (S401), and the load-side section of the feeder breaker FCB is obtained (S402). Thereafter, the following processing is repeated until there is no load-side section (S403). The load-side switch of the section is obtained (S404). If the load-side switch is the interconnected switch SWt1, the load-side switch is stored as the interconnected switch SWt1 (S405). The load side section of the switch is obtained (S406). In this way, all interconnected switches SWt are listed.

Next, after the interconnection switch SWt is obtained, a supply route search process (S304) is performed for each interconnection switch.
The section groups on the supply route are listed up and stored in the analysis target system database 16 as sections to be analyzed (S305).

Next, the system analysis means 17 analyzes the group of sections stored in the analysis target system database 16 by using the algorithm shown in FIG. That is, the analysis target system database 16
The following processing is performed on all the sections stored in (S5)
01). The analysis target section is temporarily set as an accident section,
A system state in which the load side is a power failure section is created (S50).
2), an accommodation procedure is created (S503). As for the process of creating the accommodation procedure, the system status data storage area 61, the section load data storage area 13, and the system database 14 are referred to as shown in the conceptual diagram of the input and output of the accommodation procedure creation process in FIG. Then, a procedure creation process 1052 for accommodation is performed to obtain an accommodation procedure result (105
3). The result of the accommodation procedure thus obtained is stored (S504). The procedure creation processing 105 for accommodation
Various methods can be used for the method 2, but for example, the methods disclosed in JP-A-5-199656 and JP-A-6-189454 can be used.

It is determined from the result of the process of creating the accommodation procedure whether or not the accommodation procedure can be created. Whether or not a supply procedure can be created in the event of an accident indicates the strength and weakness of the system.

In order to inform the user of the analysis result, the analysis result display means 19 displays the analysis result data in the analysis result data storage area 18 on the display device 20 in a tabular format, or displays the map data included in the system database 14. Based on the information,
The section where the inaccessibility occurs is displayed on the distribution line diagram in a different color from the available section.

Although not shown, the control of these distribution system monitoring devices is achieved by a computer, and a control program therefor is stored in a storage medium. Here, the storage medium can be a memory connected to a computer or various types of memory built in the computer, all of which are computer-readable storage media.

According to this embodiment, the system database 1
4, the load of each section belonging to the distribution line is created in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10, and at the time of the occurrence of an accident, a normal power outage other than the accident section An accident occurrence section where there is a possibility that a power transmission procedure to the section can be created is extracted 15 and set as an analysis target system 16. For each section, analysis 1 is performed to determine whether a power transmission procedure that satisfies the voltage condition and the current condition can be created based on the section load data in the section load data storage area 13.
7. Then, the analysis result is displayed on the display device 20. Therefore, the strength of the system with respect to the current load, that is, whether or not power transmission is possible in a healthy power outage section in the event of an accident is known in advance, so that personnel can be allocated at the time of a major disaster such as a typhoon or system switching can be performed in advance. This is extremely effective for monitoring and operating the distribution system.

FIG. 7 is a configuration diagram of a distribution system monitoring device 11 according to a second embodiment of the present invention. The distribution system monitoring device 11 of FIG. 7 includes a system database 14 that stores the capacity and connection state of each device such as a substation, a bank, a distribution line, a high-voltage line, a switch, and a voltage regulator that constitute the distribution system. A section load creating unit 12 for creating a load of each section belonging to the distribution line in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10 with reference to the system database 14; The accident section arbitrarily set by the operator from 20 is stored in the accident section setting data storage area 2
2, the fault condition stored in the fault zone setting data storage area 22 and the fault condition stored in the fault zone setting data storage area 22 satisfy the voltage condition and the current condition based on the zone load set by the zone load creating means 12. System analysis means 17 for analyzing whether or not the power transmission procedure can be created and storing the analysis result in an analysis result data storage area 18, and an analysis result display for displaying the analysis result data in the analysis result data storage area 18 on a display device 20. Means 19 are provided.

The section load creating means 12 receives the load data of each distribution line, which is input from the remote monitoring control device 10 at regular intervals. The section load creating means 12 refers to the system database 14, extracts a standard load of the section belonging to the distribution line, apportions the load data of the distribution line according to the standard load, and stores it in the section load data storage area 13. The accident section setting means 21 stores an accident section (arbitrary number of sections) arbitrarily set by the operator on the display device 20 in the accident section setting data storage area 22. The system analysis means 17 analyzes the strength of the system, that is, whether or not a supply procedure can be created when an accident occurs, with respect to the accident section stored in the accident section setting data storage area 22 using an algorithm shown in FIG.

In FIG. 8, first, an accident section stored in the accident section setting data storage area 22 and a system state in which the load side is a power failure section are created (S801). An accommodating procedure is created with reference to the system status and the section load data storage area 13 (S802). A method of creating the accommodation procedure is performed by a method disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 5-199656, Japanese Patent Application Laid-Open No. 6-189454, or the like, or a method having an equivalent function.

As a result of the process of creating the accommodation procedure, it is determined whether or not the accommodation procedure can be created. FIG. 9 shows a conceptual diagram of the input and output of the accommodation procedure creation processing (note that the explanation is omitted because it is the same as that of FIG. 105 described above). The result of the process of creating the accommodation procedure is stored in the analysis result data 18 (S803).
The analysis result display means 19 stores the analysis result data storage area 1
8 is displayed on the display device 20 in a table format. In addition, based on the map information included in the system database 14, sections in which inaccessibility occurs and sections in which inaccessibility does not occur are color-coded and displayed on the distribution line diagram.

According to this embodiment, the system database 1
4, the load of each section belonging to the distribution line is created in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10. Then, the accident section arbitrarily set by the operator from the display device 20 is stored in the accident section setting data storage area 22, and the voltage condition and the current condition are satisfied for the accident section based on the set section load 12. An analysis 17 is performed to determine whether or not a power transmission procedure can be created. The analysis result data is stored in the analysis result data storage area 1
8 and displayed on the display device 20. Therefore, the strength of the system with respect to the current load, that is, whether or not power transmission is possible in a healthy power outage section at the time of the occurrence of an accident can be confirmed for the section intended by the operator. This makes it possible to perform arrangement and / or prior system switching, which is extremely effective in monitoring and operating the distribution system.

FIG. 10 is a configuration diagram of a distribution system monitoring device 11 according to a third embodiment of the present invention. In FIG. 10, the distribution system monitoring device 11 is connected to the remote monitoring control device 10, and receives a measured value of a distribution line harmonic from the remote monitoring control device 10. And the substations that make up the distribution system,
System database 14 that stores the capacity and connection status of each device such as banks, distribution lines, high-voltage lines, switches, and voltage regulators
And a customer harmonic related equipment information database 33 that stores harmonic related equipment information of a customer having a harmonic generating apparatus existing on the distribution system, and the system database 14 and the customer harmonic related equipment information database 33. Then, from the harmonic measurement value of the distribution line input from the remote monitoring control device 10, the harmonic measurement value of each section belonging to the distribution line is created in the section-by-section harmonic information data storage area 32. The current harmonic information of each section stored in the system database 14 is analyzed from the creating unit 31, the section-specific harmonic information data storage area 32, the system database 14, and the customer harmonic related device information database 33. Harmonic analysis means 34, and analysis results for displaying the analysis result data created by the harmonic analysis means 34 on the display device 20. And a indicates means 19.

The section-by-section harmonic information creating means 31 receives the harmonic measurement value data of each distribution line, which is input at regular intervals from the remote monitoring control device 10, and stores the system database 14 and the customer harmonic related equipment information database 33 in the system database 14. See,
The harmonic information for each section is stored in the harmonic information data storage area 32 for each section.

The harmonic analysis means 34 receives the section-based harmonic information data stored in the section-based harmonic information data storage area 32 and stores the section-based harmonic information data in the system database 14. Compare with the harmonic reference value determined by the current system configuration of the section. Then, it is determined whether or not the section-specific harmonic information data is within the range of the reference value for operation, and if it is outside the range of the reference value, it is stored in the analysis result data storage area 18. The analysis result data storage area 18
Is displayed on the display device 20 together with the customer harmonic related device information on the conceptual diagram of the system to be analyzed.

The algorithm of the harmonic analysis means 34 is shown in a flowchart of a harmonic information analysis process in FIG. 11, and a conceptual diagram of a system to be analyzed is shown in FIG.

First, in FIG. 12, FCB is a feeder breaker of a distribution line. Harmonic data of the feeder breaker FCB is measured and sent from the remote monitoring control device 10 to the distribution system monitoring device 11. In the figure, SW1 to SW10 are normally-closed sectional switches, and in particular, S is indicated by a double square.
W indicates an analysis unit section. The analysis unit section is arbitrarily determined as necessary, but is simply expressed as a section in the following description. SWt1 is a normally-open type segmented switch provided for interconnection with another line. HC indicates the customer who owns the harmonic generation device.

Now, in the flowchart of the harmonic information analysis process, FIG.
In 1), the number of distribution lines of all the systems included in the system database 14 is obtained. Then, the processing for all the distribution lines or less is repeated (S1102). That is,

The switch / section to which the distribution line belongs is extracted from the system database 14 to determine the section (S110).
3). Next, the number of switches belonging to all sections,
A comparison is made using the reference value of the harmonic based on the switch information to which it belongs and the harmonic information data for each section in the harmonic information data storage section for each section, and the harmonic information data for each section is in the range of the reference value for operation. (S1104) (S110)
5). If the result of the comparison / judgment is out of the range of the reference value, the result and the measured value data are stored in the analysis result data storage area 18 (S1106).

Then, by using the customer harmonic related equipment information database 33, the section related customer harmonic related equipment information is stored in the analysis result data storage area 18 for each section (S1).
107). The analysis result data storage area 18
Is displayed on the display device 20 together with the customer harmonic related device information Hc on the conceptual diagram (FIG. 12) of the system to be analyzed. As a display mode in this case, the analysis result data may be further displayed on the display device 20 in a tabular form, or sections may be color-coded according to a difference from an operational reference wave on a distribution line diagram. Can be displayed. .

According to this embodiment, the section-based harmonic information creating means 31 receives the measured harmonic value data of each distribution line, which is input from the remote monitoring control device 10 at regular intervals, and receives the system database 14 and the customer harmonic data. With reference to the wave-related equipment information database 33, the harmonic information for each section is stored in the section-specific harmonic information data storage area 32. Then, the harmonic analysis means 34 compares the section-specific harmonic information data in the section-specific harmonic information data storage area 32 with a harmonic reference value determined by the current system configuration of each section stored in the system database 14. . Then, it is determined whether or not the section-specific harmonic information data is within the range of the operational reference value, and the analysis result of the analysis result data storage area 18 is stored in the conceptual diagram of the system to be analyzed. The information is displayed on the display device 20 together with the device information. Therefore, in the harmonic monitoring of the power distribution system, the data input from the remote monitoring control device 10 does not merely monitor the harmonic measurement value but has a relationship between the system configuration and the customer information including the harmonic generating device. Analysis can be performed, and appropriate measures can be taken based on the analysis results.

FIG. 13 is a configuration diagram of a distribution system monitoring device 11 according to a fourth embodiment of the present invention. In FIG. 13, the distribution system monitoring device 11 includes a system database 14 that stores the capacity and connection state of each device constituting the distribution system such as a substation, a bank, a distribution line, a high-voltage line, a switch, and a voltage regulator.
With reference to the system database 14, a section load creating unit 12 that creates a load of each section belonging to the distribution line in the section load data storage area 13 from a load of the distribution line input from the remote monitoring control device 10, Section voltage generation means 4 for storing the voltage of the main section belonging to the distribution line input from the monitoring control device 10 in the section voltage data storage area 42
1, the section voltage analysis means 43 for analyzing each section voltage at present from the system configuration of the system database 14 and the section voltage data in the section voltage data storage area 42, and the section voltage created by the section voltage analysis means 43. The section voltage analysis data storage area 44 to be stored and the section voltage analysis data in the section voltage analysis data storage area 44 are displayed on the display device 2.
There is an interval voltage analysis display means 45 for displaying 0.

The section load creating means 12 receives the load data of each distribution line, which is input from the remote monitoring control device 10 at regular intervals. The section load data 12 is stored in the system database 1
4, the standard load of the section belonging to the distribution line is taken out, the load data of the distribution line is apportioned by the standard load,
It is stored in the section load data storage area 13.

The section voltage generation means 41 receives the voltage data of the main switch of each distribution line inputted from the remote monitoring control device 10 at regular intervals, and stores the section voltage data storage area 42.
To save. Here, the main switch of the distribution line is the first switch in each line direction at the point where the load after branching is relatively large among the points where the trunk line on the system branches, and the switch for interconnection with a different line. , And a switch before and after the voltage regulator installation point.

The algorithm of the section voltage analysis means 43 will be described with reference to the section voltage analysis processing flowchart of FIG.

First, distribution line list up processing S1401
Then, the number of distribution lines of all the systems included in the system database 14 is obtained. The following process is repeated for all the distribution lines (S1402). That is, the system database 14
, The switch / section of the distribution line is determined (S140
3), the switches on the power supply side are searched for all the sections, and the closest section among the sections stored in the section voltage data storage area 42 is set as the section block to which the switch belongs (S).
1404).

The section impedance of the section belonging to the section block unit is extracted from the system database 14, and the terminal voltage of each section is calculated by the following equation with reference to the section load data storage area 13 and the section voltage data storage area 42. (S1406). The terminal voltage to be obtained is V, the measured voltage of the switch is V0, the load-side sections in the path to each terminal are numbered 1 to N, and the passing current in the load-side section is Ii,
Assuming that the impedance of the load side section is Ri, V = V0−Σ (Ii × Ri), where i is 1 to N, and Σ is the sum of Ii × Ri. The passing current Ii of the load-side section in this equation is the sum of the section load data (amps) of the load-side section of the section.

The terminal section voltage thus calculated is stored in the section voltage analysis data storage area 44 (S1407),
This processing is repeated for the number of section blocks (S1405).

The section voltage analysis display means 45 displays the section voltage analysis data in the section voltage analysis data storage area 44 obtained as described above on the display device 20 in a table format. Further, based on the map information included in the system database 14, the sections are color-coded according to the difference between the section voltage and the operation reference voltage, and are always displayed on the distribution line diagram.

According to this embodiment, the system database 1
4, the load of each section belonging to the distribution line is created in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control apparatus 10, and is input from the remote monitoring control apparatus 10. The voltage data 42 of the main section belonging to the distribution line is obtained. Then, the current section voltages are analyzed 43 from the system configuration of the system database 14 and the section voltage data in the section voltage data storage area 42, and the display device 2
Display at 0. Therefore, it is necessary to compare and monitor the voltage of each section with the operation reference voltage in consideration of the current load condition, the voltage of the main point, and the system configuration, in addition to the voltage monitoring based on the data input from the remote monitoring control device 10. This is extremely effective for monitoring and operating the distribution system.

FIG. 15 is a configuration diagram of a distribution system monitoring device 11 according to a fifth embodiment of the present invention. In FIG. 15, a distribution system monitoring device 11 includes a system database 14 that stores the capacity and connection state of each device constituting a distribution system such as a substation, a bank, a distribution line, a high-voltage line, a switch, and a voltage regulator;
With reference to the system database 14, load data for storing the load of each section belonging to the distribution line and the passing current of each switch in the load data storage area 52 from the load of the distribution line input from the remote monitoring control device 10. A storage means 51, a load analysis means 53 for analyzing the load state of each device based on the load data storage area 52 and the system database 14 and storing it in the analysis result data storage area 18; Display result data of the display device 2
It has an analysis result display means 19 for displaying 0, and always displays a margin of electrical capacity of each device with respect to the load of the current system.

The load data storage means 51 receives the load data of each distribution line and switch input from the remote monitoring control device 10 at regular intervals, and stores them in the load data storage area 52. The load data is configured as shown in FIG.
The load data storage area 52 is updated only when there is a change in the load, and the updated data sets an update flag.

The load analysis means 53 is provided in the system database 1
4 and the updated data in the load data storage area 52, an allowable load is checked for each device, and the result is stored in the analysis result data storage area 18. In this load analysis, as shown in the flowchart of FIG. 17, it is determined whether or not the load data has been updated for the number of devices (distribution lines, switches, etc.) of the distribution line based on the update flag (S1702). Then, the reserve capacity is calculated for the updated load data (S1703). This reserve calculation is calculated as the difference between the allowable load value of the device and the current load value, and the analysis result of the reserve is obtained as time-series (time, day, and month) data in a format as shown in FIG. Saved
(S1704).

The analysis result display means 19 displays the analysis result on the display device 20 based on the analysis result data in the analysis result data storage area 18. As a display mode, as shown in FIG. 19, reserve capacity display (eg, 60A, etc.) for each device in a system diagram, color change according to reserve capacity, time-series display for each device by graph display, and the like It can be performed.

According to this embodiment, the system database 1
4, the load of each section belonging to the distribution line and the passing current of each switch from the load of the distribution line input from the remote monitoring control device 10 are stored in the load data storage area 52,
The load data storage area 52 and the system database 14
The load condition of each device is analyzed based on the above, a reserve capacity (= allowable load value−current load value) is obtained in the analysis result data storage area 18, and the margin of the electrical capacity of each device with respect to the current system load is obtained. Always display degrees. Therefore, the remote monitoring control device 10
It is very effective for monitoring and operating the power distribution system, because it is possible to accurately grasp the reserve capacity in consideration of the current load situation and the system configuration as well as the monitoring based on the data input from the system.

FIG. 20 is a configuration diagram of a distribution system monitoring device 11 according to a sixth embodiment of the present invention. In FIG. 20, the distribution system monitoring device 11 includes a system database 14 that stores the capacity and connection state of each device constituting the distribution system such as a substation, a bank, a distribution line, a high-voltage line, a switch, and a voltage regulator.
With reference to the system database 14, a section load creating unit 12 that creates a load of each section belonging to the distribution line in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10, The analysis target system extraction means 15 for extracting a branch section group having no interconnection switch in the system and an accident occurrence section in which a power transmission procedure cannot be created for the branch section group, and the analysis target system extraction means 15 An analysis target lineage database 16 for storing sections,
For the branch section group without interconnection switch stored in the analysis target system database 16, the section load data storage area 1
A system analysis means 17 for judging whether or not the section load of section 3 becomes greater than or equal to a certain predetermined load and causing a serious supply hindrance in the event of an accident, and storing it in an analysis result data storage area 18; It has an analysis result display means 19 for displaying the analysis result of the storage area 18 on the display device 20. In the distribution system operation, when the load exceeds a certain load in the branch section group without the interconnection switch, power transmission due to an accident occurs. It has a function to display the missing branch section group and the accident section.

The section load creating means 12 receives the load data of each distribution line inputted at regular intervals from the remote monitoring control device 10 and refers to the system database 14 to determine the standard load of the section belonging to the distribution line. The load data is taken out, the load data of the distribution line is apportioned by the standard load, and stored in the section load data storage area 13.

The analysis target system extracting means 15 extracts a section to be analyzed and stores it in the analysis target system database 16. Here, the section to be analyzed means an accident-occurring section and a branch section group in which a power transmission procedure to a branch section group other than the accident section cannot be created by a device switching operation when an accident occurs on the system. A conceptual diagram of the system to be analyzed is shown in FIG. 21, and a section indicated by a broken line in the figure is an accident occurrence section,
The section indicated by a thick line is a branch section group, and the section indicated by a thin line is a section not to be analyzed. SW1 to SW8 indicate normally-closed sectional switches, and SWt1 is a normally-open sectional switch for interconnection with another line.

Now, the algorithm of the analysis target system extraction means 15 will be described with reference to the analysis target system extraction processing flowchart of FIG.

First, distribution line list up processing S2201
Then, the number of distribution lines of all the systems included in the system database 14 is obtained. The following process is repeated for all the distribution lines (S2202).

The switches and sections belonging to the distribution line are obtained from the system database 14 (S2203), and the processing for the number of switches or less is performed (S2204). If the switch is an interconnection switch (S2205), a supply path search and search for the switch is performed (S2206). A section other than the section listed as the supply route (corresponding to sections 1, 2, 6, 7, and 8 in FIG. 21) is a branch section group (section 3 and FIG. 21).
4, 5, and 9) (S2207).

Next, an accident section in which a power failure occurs in the branch section group is determined. The following processing is performed for the number of sections of the supply path (S2
208). With reference to the connection information of the system database 14 of the section (S2209), if there is a branch section group on the load side, the section is set as an accident occurrence section (sections 2 and 6 in FIG. 21) (S2211). In this way (S220
7), the branch section group obtained in (S2211) and the accident occurrence section are stored in the analysis target database 16 (S221).
2).

Next, the system analysis means 17 performs the following processing on all accident occurrence sections (sections 2 and 6) stored in the analysis system object database 16 in the procedure shown in FIG. 23 (S2301). . The section (section 2) is temporarily set as an accident section, a system state is created in which the load side is a power failure section, and a load-side power failure section group of the section is determined (S23).
02). When the interconnection switch SWt1 is connected to the load-side power failure section (S2303), the total load of the section of the load-side power failure section is obtained by referring to the section load data storage area 13, and the calculated total amount of the load is present. A section where the load amount condition is equal to or greater than a predetermined reference is extracted (S2304). The result is stored in the analysis result data storage area 18 (S2305).

The analysis result display means 19 displays the analysis result of the analysis result data storage area 18 on the display device 20 in a table format. Further, based on the map information included in the system database 14, the branch section and the accident occurrence section in the analysis result data storage area 18 are always displayed on the distribution line diagram.

According to this embodiment, the load of each section belonging to the distribution line is stored in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10 with reference to the system database 14. Then, a branch section group having no interconnection switch in the distribution system and an accident occurrence section in which a power transmission procedure to the branch section group cannot be created are extracted 15. The section extracted by the analysis target system extraction means 15 is stored 16, and a certain reference is set for the section load of the section load data storage area 13 with respect to the stored branch section group having no interconnection switch. An analysis 17 is performed to determine whether the load becomes greater than the load amount and the supply becomes serious when an accident occurs. An analysis result display means 19 for displaying the analysis result of the analysis result data storage area 18 on the display device 20 is provided. Therefore, in the distribution system operation, if the load exceeds a certain level in the branch section group with no interconnection switch, the branch section group and the fault section where power transmission is not possible due to the occurrence of an accident are displayed, so the current load situation and system configuration The reserve capacity can be accurately grasped in consideration of this, and this is extremely effective in monitoring and operating the distribution system.

FIG. 24 is a configuration diagram of a distribution system monitoring device 11 according to a seventh embodiment of the present invention. In FIG. 24, the distribution system monitoring device 11 includes a system database 14 that stores the capacity and connection state of each device constituting the distribution system such as a substation, a bank, a distribution line, a high-voltage line, a switch, and a voltage regulator.
With reference to the system database 14, a section load creating unit 12 that creates a load of each section belonging to the distribution line in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10, An accident section which is set arbitrarily by the operator from the display device 20 and stored in the accident section setting data storage area 22, and an analysis target system extraction section which extracts a branch section group without an interconnecting switch 15, the branch section group extracted by the analysis target system extracting means 15 and the accident section setting data storage area 2
Analysis target system database 16 storing 2 accident sections
And the section load in the section load data storage area 13 exceeds a certain predetermined load amount with respect to the branch section group having no interconnection switch stored in the analysis target system database 16, System analysis means 17 for judging whether or not there is a supply hindrance and storing it in an analysis result data storage area 18, and an analysis result display means 19 for displaying the analysis result of the analysis result data storage area 18 on a display device 20. If the load exceeds a certain level in a branch section group without an interconnecting switch due to the operation of the distribution system, a branch section group that cannot transmit power due to the occurrence of an accident and an accident section arbitrarily assumed are displayed.

The section load creating means 12 receives the load data of each distribution line inputted at regular intervals from the remote monitoring control device 10, refers to the system database 14, and extracts the standard load of the section belonging to the distribution line. Then, the load data of the distribution line is apportioned by the standard load and stored in the section load data storage area 13.

The accident section setting means 21 stores the accident section arbitrarily assumed by the operator from the display device 20 in the accident section setting data storage area 22.

The analysis target system extraction means 15 extracts a section to be analyzed based on the accident section setting data storage area 22 for storing the assumed accident section in the system database 14 and stores it in the analysis target system database 16. . Here, the section to be analyzed means a branch section group in which a power transmission procedure to a branch section group other than the accident section cannot be created by a device switching operation when an accident occurs in the assumed accident section. The conceptual diagram of the system to be analyzed is shown in FIG.
Is the same as that shown in FIG.

FIG. 25 shows the algorithm of the analysis target line extraction means 15. First, distribution line list up processing S25
At 01, the distribution line to which the assumed accident section of the accident section setting data storage area 22 belongs is obtained from the distribution lines of all the systems included in the system database 14. All switches and sections belonging to the obtained distribution line are obtained from the system database 14 (S2502). The following processing is performed for all the switches (S2503).

When the switch is an interconnection switch (S
2504), a search is made for the supply route of the switch (S2505). List as supply route (Fig. 21
Sections 1, 2, 6, 7, and 8))
It is set as a branch section group (corresponding to sections 3, 4, 5, and 9 in FIG. 21) (S2506).

Next, an accident section in which a power failure occurs in the branch section group is determined. The following processing is performed for the number of sections of the supply path (S2
507). With reference to the connection information in the system database 14 of the section (S2508), if there is a branch section group on the load side (S2509), the section (sections 2 and 6 in FIG. 21) corresponds to the accident section setting data storage area 22. (S2510), a section other than the section detected by the supply route search is set as a branch section group (S2506).
Is stored in the analysis target database 16 (S2511).

Next, the system analysis means 17 temporarily sets the assumed accident section saved in the analysis system object database 16 in the procedure shown in FIG. Then, a load side power outage section group of the section is created (S2601).

When the interconnection switch is connected to the load side power failure section (S2602), the section load data storage area 1
3 to obtain the sum of the section loads in the load side blackout section,
A section in which the calculated sum of the load amounts is equal to or greater than a load amount condition that defines a certain standard is extracted (S2603). The result is stored in the analysis result data storage area 18 (S2
604).

The analysis result display means 19 displays the analysis result of the analysis result data storage area 18 on the display device 20 in a table format. Further, based on the map information included in the system database 14, an accident section assumed as a branch section in the analysis result data storage area 18 is displayed on a distribution line diagram.

According to this embodiment, the load of each section belonging to the distribution line is stored in the section load data storage area 13 from the load of the distribution line input from the remote monitoring control device 10 with reference to the system database 14. The operator arbitrarily sets the created and assumed accident occurrence section from the display device 20,
While saving in the accident section setting data storage area 22,
A branch section group without an interconnecting switch is extracted 15. Then, for the branch section group having no interconnection switch, it is determined whether or not the section load of the section load data storage area 13 is equal to or greater than a certain predetermined load amount, which may cause a serious supply obstacle in the event of an accident. And saves it in the analysis result data storage area 18,
The information is displayed on the display device 20. Therefore, based on the accident section arbitrarily set by the operator, if the load exceeds a certain level in the branch section group without the interconnection switch, the branch section group and the accident section that cannot transmit power due to the accident are displayed.
The reserve capacity can be accurately grasped in consideration of the current load condition and system configuration, which is extremely effective in monitoring and operating the distribution system.

FIG. 27 is a configuration diagram of a distribution system monitoring device 11 according to an eighth embodiment of the present invention. In FIG. 27, the distribution system monitoring device 11 includes a standard ON / OFF state of each switch.
Each component of the distribution system (substation, bank, distribution line,
A system database 14 for storing the capacity and connection state of high-voltage lines, switches, voltage regulators, and the like, and a system database 14
From the standard condition that interconnects each distribution line, the disconnected interconnection switch is extracted in the standard state, and the higher system of the bank to which each distribution line that supplies both end sections of the interconnection switch belongs is searched, and each distribution line is searched. It is checked for each interconnection switch of whether the interconnection switch is an interconnection switch between different banks, and the analysis result data storage area 18
And an analysis result display means 19 for displaying an analysis result of the analysis result data storage area 18 on a display device 20.

The system analysis means 17 extracts a switch to be analyzed and stores it in the analysis result data storage area 18. Here, the switch to be analyzed is a switch in the standard off state that interconnects distribution lines on the system, and the distribution lines and substations that belong to the distribution lines at both ends of the switch. Switches with different banks. FIG. 28 shows a conceptual diagram of a system to be analyzed. In FIG. 28, the system state is a standard operation state, SW1 to SW7 are normally-closed partitioned switches, SWt1 and SWt2 are normally-open interconnection switches, and these interconnection switches SWt1 and SWt2 are This is the switch to be analyzed.

The extraction algorithm in the systematic analysis means 17 is shown in the analysis target system extraction processing flowchart of FIG.

First, distribution line list-up processing (S290)
In 1), the number of distribution lines of all the systems included in the system database 14 is obtained. The processing for the number of distribution lines or less is repeated (S2902). The switches and sections belonging to the distribution line are obtained from the system database 14 (S2903). The processing for the number of switches or less is performed (S2904). If the switch is an interconnected switch, the supply path at both ends of the switch is searched to find a supply distribution line (S2905). If the upper system of the supply distribution line bank at both ends of the interconnection switch is different, it is stored in the analysis result data storage area 18 (S
2906).

The analysis result display means 19 displays the analysis result of the analysis result data storage area 18 on the display device 20 in a table format. Also, based on the map information included in the system database 14, the analysis result data storage area 1 is displayed on the distribution line diagram.
The switches included in 8 are displayed in different colors.

According to this embodiment, the system database 1
4, an interconnected switch in an off state in a standard state for interconnecting the distribution lines is extracted, and a higher system of a bank to which each distribution line that supplies both end sections of the interconnection switch is searched, and each distribution line is searched. For each interconnection switch of an electric wire, check whether the interconnection switch is an interconnection switch between different banks, and store the analysis result data storage area 1
Save to 8. Then, based on the analysis result in the analysis result data storage area 18, the display device 20 displays whether each interconnection switch is between different banks. Therefore, it is possible to grasp the influence when the interconnecting switch, which is normally open, is turned on, which is extremely effective for monitoring and operating the distribution system.

FIG. 30 is a configuration diagram of a distribution system monitoring device 11 according to a ninth embodiment of the present invention. In FIG. 30, the capacity and connection state of each device (substation, bank, distribution line, high-voltage line, switch, voltage regulator, etc.) constituting the distribution system, including the standard ON / OFF state of each switch, are stored. Interconnection switch setting means 91 for storing the interconnection switch set by the operator from the display device 20 in the interconnection switch setting data storage area 92; When the interconnected switch in the off state is extracted in the standard state, and the extracted interconnected switch and the interconnected switch stored in the interconnected switch setting data storage area 92 are the same, the interconnected switch is Search the upper system of the bank to which each distribution line that supplies both end sections belongs, check for each interconnection switch of each distribution line whether the interconnection switch is an interconnection switch with a different bank, and analyze the results System to save in data storage area 18 And analysis means 17 has an analysis result display unit 19 for displaying the analysis result of the analysis result data storage area 18 on the display device 20.

The system analysis means 17 is set by the operator from the display device 20 and is connected to the interconnection switch setting data storage area 9.
It is determined whether or not the interconnected switch stored in 2 is to be analyzed, and if so, the interconnected switch is stored in the analysis result data storage area 18. Here, the switch to be analyzed is a switch in a standard off state that interconnects distribution lines on the system, and the distribution lines and substations that belong to the distribution lines at both ends of the switch are determined. Switches with different banks. The conceptual diagram of the system to be analyzed is the same as that in FIG. 28 described above.

The extraction algorithm in the system analysis means 17 is shown in the analysis target system extraction processing flowchart of FIG.

First, distribution line list up processing (S310)
In 1), the number of distribution lines of all the systems included in the system database 14 is obtained. The processing for the number of distribution lines or less is repeated (S3102). The switches and sections belonging to the distribution line are obtained from the system database 14 (S3103). The processing for the number of switches or less is performed (S3104). If the switch is an interconnected switch to be stored in the interconnected switch setting data storage area 92, the supply path at both ends of the switch is searched for a supply distribution line (S3105). If the higher system of the supply distribution line bank at both ends of the interconnection switch is different, it is stored in the analysis result data storage area 18 (S31).
06).

The analysis result display means 19 displays the analysis result of the analysis result data storage area 18 on the display device 20 in a table format. Also, based on the map information included in the system database 14, the analysis result data storage area 1 is displayed on the distribution line diagram.
The switches included in 8 are displayed in different colors.

According to this embodiment, the interconnection switch set by the operator from the display device 20 is stored 91 in the interconnection switch setting data storage area 92. Lineage database 14
In the standard state for interconnecting the respective distribution lines, a disconnected switch is extracted in a standard state, and the extracted interconnected switch and the interconnected switch saved in the interconnected switch setting data storage area 92 are the same. Then, the upper system of the bank to which each distribution line that supplies both end sections of the interconnection switch is searched, and for each interconnection switch of each distribution line, the interconnection switch is connected to a different bank. It is checked whether it is or not and stored in the analysis result data storage area 18. Then, based on the analysis result in the analysis result data storage area 18, the display device 20 displays whether each interconnection switch is between different banks. Therefore, it is displayed whether or not the interconnected switch set arbitrarily by the operator is between different banks, so that it is possible to grasp the influence when the interconnected switch which is normally open is turned on, and It is extremely effective for monitoring and operating the system.

FIG. 32 is a configuration diagram of a distribution system monitoring device 11 according to a tenth embodiment of the present invention. In FIG. 1, a distribution system monitoring device 11 is connected to a remote monitoring control device 10, creates switch current ON / OFF state data from switch information input from the remote monitoring control device 10, A switch current ON / OFF state creating means 101 to be stored in the OFF state data storage area 102, a capacity of each device (a substation, a bank, a distribution line, a high voltage line, a switch, a voltage regulator, and the like) constituting a power distribution system. A system database 14 that stores the connection state, and a currently-connected switch that interconnects each distribution line are extracted from the system database 14 and the switch current on / off state data storage area 102, and the connection switch is Search the upper system of the bank to which each distribution line to be supplied to both end sections of the distribution line belongs, and check for each interconnection switch of each distribution line whether the interconnection switch is an interconnection switch with a different bank, and analyze Result data A system analysis unit 17 to store the presence area 18, has an analysis result display unit 19 for displaying the analysis result of the analysis result data storage area 18 on the display device 20.

The system analysis means 17 extracts a switch to be analyzed and stores it in the analysis result data storage area 18. Here, the switch to be analyzed is the current “off” switch that connects the distribution lines on the system, and the distribution lines and substations that belong to the distribution lines at both ends of the switch.
Different banks with different supply banks or substations at both ends. FIG. 33 shows a conceptual diagram of a system to be analyzed.
In FIG. 33, SW1 to SW7 are normally-closed sectional switches, and SWt1 to SWt3 are normally-open interconnection switches.
In this figure, the normally-closed switch SW7 is in the open state, the normally-open interconnection switch SWt3 is in the closed state, and the normally-closed switch SW7 is in the closed state.
7 and the interconnection switch SWt3 are analysis target switches. In the drawing, switches to be analyzed are indicated by thick lines, and switches not to be analyzed are indicated by thin lines.

The extraction algorithm of the systematic analysis means is shown in FIG.
Is shown in the flowchart of the analysis target line extraction processing.

First, distribution line list up processing S3401
Then, the number of distribution lines of all the systems included in the system database 14 is obtained. The following processing is repeated for all the distribution lines (S3402). The distribution line belonging switch and section are obtained from the system database 14 (S3403). The processing for the number of switches or less is performed (S3404). If the switch is a currently open switch, the supply path at both ends of the switch is searched to find a supply distribution line (S3405). If the upper system of the supply distribution line bank at both ends of the interconnection switch is different, it is stored in the analysis result data storage area 18 (S3406).

The analysis result display means 19 displays the analysis result in the analysis result data storage area 18 on the display device 20 in a table format. Also, based on the map information included in the system database 14, the analysis result data storage area 1 is displayed on the distribution line diagram.
The switches included in 8 are displayed in different colors.

According to this embodiment, the remote monitoring control device 1
The switch current ON / OFF state data is created from the switch information input from 0 and stored in the switch current ON / OFF state data storage area 102. Then, from the system database 14 that stores the capacity and connection state of each device constituting the distribution system and the switch current ON / OFF state data storage area 102, the current ON / OFF state switch that connects the distribution lines is extracted. Then, the upper system of the bank to which each distribution line to be supplied to both end sections of the interconnection switch is searched, and for each interconnection switch of each distribution line, the interconnection switch is connected to a different bank. It is checked whether it is or not and stored in the analysis result data storage area 18. Then, based on the analysis result in the analysis result data storage area 18, whether or not each interconnection switch is an interconnection switch with a different bank is displayed on the display device 20. Therefore, it is possible to understand the effect of turning off the switch when the switch is turned on.
It is extremely effective for operation.

FIG. 35 is a configuration diagram of a distribution system monitoring device 11 according to an eleventh embodiment of the present invention. In FIG. 35, the distribution system monitoring device 11 is connected to the remote monitoring control device 10, and based on the switch information input from the remote monitoring control device 10, generates the switch current ON / OFF state data based on the switch current ON / OFF status. State creation means 101 and a switch current ON / OFF state data storage area 102 for storing the current ON / OFF state of the switch
And a system database 14 for storing the capacity and connection status of each device (substation, bank, distribution line, high-voltage line, switch, voltage regulator, etc.) constituting the distribution system, and an operator set from the display device 20. Interconnection switch setting means 91 for storing the interconnection switch in the interconnection switch setting data storage area 92
And an interconnecting switch in a current off state for interconnecting the distribution lines from the system database 14 and the switch on / off state data storage area 102, and the extracted interconnecting switch is connected to the interconnecting switch setting data. When the same as the interconnection switch stored in the storage area 92, the upper system of the bank to which each distribution line to be supplied to both end sections of the interconnection switch is searched, and for each interconnection switch of each distribution line, It is checked whether the interconnection switch is an interconnection switch with a different bank, and the analysis result data storage area 18 is checked.
And an analysis result display means 19 for displaying the analysis result of the analysis result data storage area 18 on the display device 20.

The system analysis means 17 is set by the operator from the display device 20 and is connected to the interconnection switch setting data storage area 9.
It is determined whether or not the interconnected switch stored in 2 is to be analyzed. If the interconnected switch is to be analyzed, the interconnected switch is stored in the analysis result data storage area 18. Here, the switch to be analyzed is the current “off” switch that connects the distribution lines on the system and the distribution lines and substations that belong to the distribution lines supplied to both ends of the switch. Are different switches with different supply banks or substations. The conceptual diagram of the system to be analyzed is the same as that shown in FIG.

FIG. 36 shows the extraction algorithm of the systematic analysis means.
Is shown in the flowchart of the analysis target line extraction processing.

First, distribution line list up processing S3601
Then, the number of distribution lines of all the systems included in the system database 14 is obtained. The following process is repeated for all the distribution lines (S3602). The distribution line associated switch and section are obtained from the system database 14 (S3603). The processing for the number of switches or less is performed (S3604). If the switch is an interconnected switch stored in the interconnected switch setting data storage area 92 and is also a currently open switch, a supply path at both ends of the switch is searched for a supply distribution line (S
3605). When the upper system of the supply distribution line belonging banks at both ends of the interconnection switch is different, it is stored in the analysis result data storage area 18 (S3606).

The analysis result display means 19 displays the analysis result in the analysis result data storage area 18 on the display device 20 in a table format. Further, the switches included in the analysis result data 18 are displayed in different colors on the distribution line diagram based on the map information included in the system database 14.

According to this embodiment, the remote monitoring control device 1
Based on the switch information input from 0, switch current ON / OFF state data is created, stored in the switch current ON / OFF state data storage area 102, and the capacity and connection state of each device constituting the power distribution system are stored. The system database 14 to be stored and the interconnection switch set by the operator from the display device 20 are stored in the interconnection switch setting data storage area 92. Then, a currently-connected interconnection switch that interconnects each distribution line is extracted from the system database 14 and the currently-open / closed-state data storage area 102, and the extracted interconnection switch is connected to the interconnection switch setting data. When the same as the interconnection switch stored in the storage area 92, the upper system of the bank to which each distribution line to be supplied to both end sections of the interconnection switch is searched, and for each interconnection switch of each distribution line, It is checked whether the interconnection switch is an interconnection switch with a different bank, and is stored in the analysis result data storage area 18. Then, based on the analysis result in the analysis result data storage area 18, whether or not each interconnection switch is an interconnection switch with a different bank is displayed on the display device 20. Therefore, it is possible to grasp the influence of turning on the off-state switch, which is arbitrarily set by the operator, which is extremely effective for monitoring and operating the distribution system.

[0121]

According to the power distribution system monitoring device of the first aspect, it is possible to notify the operator of a section where a large-scale power failure occurs due to the occurrence of an accident before the occurrence of the accident, and it is possible to notify a large-scale disaster such as a typhoon. It is possible to support efficient staffing at the time and design of efficient facility enhancement work.

According to the power distribution system monitoring device of the second aspect, it is possible to confirm in advance the occurrence of a healthy power failure section for an accident section arbitrarily set by an operator. As a result, it is possible to prevent the occurrence of a healthy power outage section in the event of an accident and to support the design of an efficient facility enhancement work.

According to the power distribution system monitoring apparatus of the third aspect, the harmonic information of each current section is analyzed, and the sections that may deviate from the range of the harmonic value of the operation standard are included therein. It is possible to notify the operator of the customer harmonic related device information in advance, and it is possible to operate the distribution line efficiently.

According to the power distribution system monitoring device of the fourth aspect, the current section voltage is analyzed, and the operator is notified in advance of the section where the section voltage may deviate from the range of the operation reference voltage. And efficient operation of distribution lines becomes possible.

According to the distribution system monitoring device of the fifth aspect, it is possible to notify the operator of a section where a large-scale power failure occurs due to the occurrence of an accident before the occurrence of the accident. It is possible to support efficient staffing and the design of efficient facility enhancement work.

According to the power distribution system monitoring device of the sixth aspect, it is possible to notify the operator of the branch section group that causes a large-scale power failure due to the occurrence of the accident and the accident occurrence section before the occurrence of the accident. It is possible to support efficient staffing at the time of a large-scale disaster such as a disaster, and the design of efficient facility reinforcement work.

According to the power distribution system monitoring device of the present invention, it is possible to confirm in advance a branch section group that will cause a large-scale power failure due to an accident occurring in an accident section arbitrarily set by an operator. This makes it possible to efficiently allocate personnel to important branch sections in the event of an accident and to assist in designing efficient equipment enhancement work.

According to the distribution system monitoring device of the eighth aspect, in the standard operation of the distribution system, by displaying whether the supply facilities on both sides of the interconnection switch are different systems or the same system, efficient operation is achieved. Support for the design of equipment reinforcement works is possible.

According to the power distribution system monitoring device of the ninth aspect, in the standard operation of the power distribution system, it is displayed whether the supply equipment on both sides of the interconnection switch arbitrarily set by the operator is different system or the same system. By doing so, it is possible to support the design of efficient equipment enhancement work.

According to the distribution system monitoring apparatus of the tenth aspect, the connection state between the distribution lines in the current system state can be determined whether the system is the same system or a different system. Support for efficient human resource allocation and the design of efficient equipment reinforcement work.

According to the distribution system monitoring apparatus of the eleventh aspect, in the current system state, the connection between the two distribution lines of the interconnection switch set arbitrarily by the operator is the same system or a different system. Since the state can be understood, it is possible to support efficient staffing at the time of a large-scale disaster such as a typhoon and support for designing an efficient facility enhancement work.

According to the recording medium in which the control procedure of the distribution system monitoring device according to the twelfth aspect is recorded, it is possible to notify the operator of a section where a large-scale power failure occurs due to the occurrence of the accident before the occurrence of the accident, It is possible to support efficient staffing at the time of a large-scale disaster such as a typhoon and the design of efficient facility reinforcement work.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a distribution system monitoring device according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram of an analysis target system.

FIG. 3 is a flowchart of an analysis target section extraction process.

FIG. 4 is a list of all interconnected switches.

FIG. 5 is an algorithm of a system analysis means.

FIG. 6 is a conceptual diagram of a procedure creation process.

FIG. 7 is a configuration diagram of a distribution system monitoring device according to a second embodiment of the present invention.

FIG. 8 is an algorithm of a systematic analysis means.

FIG. 9 is a conceptual diagram of a procedure creation process.

FIG. 10 is a configuration diagram of a distribution system monitoring device according to a third embodiment of the present invention.

FIG. 11 is a flowchart of harmonic information analysis processing.

FIG. 12 is a conceptual diagram of a system to be analyzed.

FIG. 13 is a configuration diagram of a distribution system monitoring device according to a fourth embodiment of the present invention.

FIG. 14 is a flowchart of a section voltage analysis process.

FIG. 15 is a configuration diagram of a distribution system monitoring device according to a fifth embodiment of the present invention.

FIG. 16 is a configuration diagram of load data.

FIG. 17 is a flowchart of a process performed by a load analysis unit.

FIG. 18 is an analysis result data configuration diagram.

FIG. 19 is a diagram showing an example of reserve capacity displayed on a system diagram.

FIG. 20 is a configuration diagram of a distribution system monitoring device according to a sixth embodiment of the present invention.

FIG. 21 is a conceptual diagram of an analysis target system.

FIG. 22 is a flowchart of analysis target system extraction processing.

FIG. 23 is an algorithm of a system analysis means.

FIG. 24 is a configuration diagram of a distribution system monitoring device according to a seventh embodiment of the present invention.

FIG. 25 is a flowchart of an analysis target extraction process.

FIG. 26 is an algorithm of a systematic analysis means.

FIG. 27 is a configuration diagram of a distribution system monitoring device according to an eighth embodiment of the present invention.

FIG. 28 is a conceptual diagram of an analysis target system.

FIG. 29 is a flowchart of an analysis target line extraction process.

FIG. 30 is a configuration diagram of a distribution system monitoring device according to a ninth embodiment of the present invention.

FIG. 31 is a flowchart of an analysis target line extraction process.

FIG. 32 is a configuration diagram of a distribution system monitoring device according to a tenth embodiment of the present invention.

FIG. 33 is a conceptual diagram of an analysis target system.

FIG. 34 is a flowchart of an analysis target line extraction process.

FIG. 35 is a configuration diagram of a distribution system monitoring device according to an eleventh embodiment of the present invention.

FIG. 36 is a flowchart of an analysis target system extraction process.

FIG. 37 is a configuration diagram of a conventional distribution system monitoring device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 remote monitoring control device 11 distribution system monitoring device 12 section load creation means 13 section load data storage area 14 system database 15 analysis target system extraction means 16 analysis target system database 17 system analysis means 18 analysis result data storage area 19 analysis result display means REFERENCE SIGNS LIST 20 display device 21 accident section setting means 22 accident section setting data storage area 31 section-by-section harmonic information creation means 32 section-by-section harmonic information data storage area 33 customer harmonic related equipment information database 34 harmonic analysis means 41 section voltage creation means 42 section voltage data storage area 43 section voltage analysis means 44 section voltage analysis data storage area 45 section voltage analysis display means 51 load data storage means 52 load data storage area 53 load analysis means 61 system status data storage area 91 interconnection閉器 setting means 92 communicating system switch setting data storage area 101 switches the current on-off state creating means 102 switches the current on-off state data storage area 371 line monitoring means

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeshi Kaneko 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant, Inc. (72) Inventor 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba ( 72) Inventor Hiroyuki Mori 2-4-1 Nagahama, Chuo-ku, Fukuoka City, Fukuoka Prefecture Toshiba Kyushu Branch Office (72) Inventor Shinichi Kubo 2-4-1 Nagahama, Chuo-ku, Fukuoka City Fukuoka Prefecture Toshiba Kyushu Branch Office (72) Inventor Haruo Takita 2-1-2, Watanabe-dori, Chuo-ku, Fukuoka City, Fukuoka Prefecture Inside Kyushu Electric Power Company (72) Inventor Makoto Murata 2-182, Watanabe-dori, Chuo-ku, Fukuoka City, Fukuoka Prefecture Kyushu Electric Power Stock In-house F term (reference) 5G066 AA04 AA07 AA08 AE04 AE07 AE09

Claims (12)

[Claims] 1. A system database for storing the capacity and connection status of each device constituting a power distribution system, and a distribution line load input from a remote monitoring control device according to the system configuration data of the system database. Section load creation means for creating the load of each section belonging to the section as section load data, and an accident occurrence section where it is possible to create a power transmission procedure to a section other than the accident section by switching equipment when an accident occurs Analysis target system extraction means for extracting the data, an analysis target system database for storing the sections extracted by the analysis target system extraction means, and the section load generation means for each section stored in the analysis target system database. Based on the assumed section load, determine whether it is possible to create a power transmission procedure that satisfies the voltage condition and current condition. A power distribution system monitoring device comprising: a system analysis unit for storing; and an analysis result display unit for displaying analysis result data by the system analysis unit on a display device. 2. A system database for storing the capacity and connection status of each device constituting the distribution system, and a distribution line load input from a remote monitoring control device according to the system configuration data of the system database. A section load creating means for creating a load of each section belonging to section as section load data; an accident section setting means for an operator to arbitrarily set an accident section from a display device and storing the same in the accident section setting data; System analysis that determines whether a power transmission procedure that satisfies the voltage and current conditions can be created based on the section load assumed by the section load creation means for the accident section stored in the data, and saves it as analysis result data. A distribution system monitoring device, comprising: means for displaying the analysis result data on the display device. 3. A system database for storing the capacity and connection status of each device constituting the power distribution system, and a customer harmonic related device for storing information on harmonic related devices of a customer having a harmonic generating device existing on the power distribution system. According to the equipment information database, the system configuration data of the system database and the harmonic-related equipment data of the customer harmonic-related equipment information database, from the harmonic measurement value of the distribution line input from the remote monitoring control device, belong to the distribution line A section-by-section harmonic information creating means for creating section-by-section harmonic information data for each section to be created, and the section-by-section harmonic information data, the system database, and the customer harmonic related equipment information database, stored in the system database. Harmonic analysis means for analyzing current harmonic information of each section, and analysis results created by the harmonic analysis means A distribution system monitoring device, comprising: an analysis result display means for displaying data on a display device. 4. A system database storing the capacity and connection status of each device constituting the distribution system, and a distribution line load input from a remote monitoring control device according to the system configuration data of the system database. A section load creating means for creating a load of each section belonging to the section as section load data, a section voltage database for storing voltages of main sections belonging to the distribution line inputted from the remote monitoring control device, and a system of the system database A section voltage analysis means for analyzing a current section voltage from section voltage data of the section voltage database according to configuration data and the section load data, and a section voltage for displaying section voltage analysis data of the section voltage analysis means on a display device. A distribution system monitoring device comprising: an analysis display unit. 5. A distribution database which stores the capacity and connection status of each device constituting the distribution system and a load of the distribution line inputted from the remote monitoring control device according to the system configuration data of the distribution database. Load data storage means for storing the load of each section belonging to each section and the passing current of each switch as load data, and analyze the load state of each device based on this load data and system database, and save it as analysis result data Load analysis means, and load state display means for displaying the analysis result data on a display device,
A distribution system monitoring device, which constantly displays a margin of electrical capacity of each device with respect to a load of a current system. 6. A system database storing the capacity and connection state of each device constituting the distribution system, and a distribution line load input from a remote monitoring control device according to the system configuration data of the system database. Section load creating means for creating the load of each section belonging to the section as section load data, branch sections without interconnection switches arranged in a tree shape in the distribution system, and power transmission procedures for this branch section group Analysis target system extraction means to extract the accident occurrence section that becomes impossible, and determine whether the section load data of each branch section group exceeds a certain standardized load amount and causes a serious supply obstacle in the event of an accident A distribution system monitoring device comprising: a system analysis unit that stores the analysis result data; and an analysis result display unit that displays the analysis result data on a display device. 7. A system database for storing the capacity and connection status of each device constituting the distribution system, and a distribution line load input from the remote monitoring control device according to the system configuration data of the system database. A section load creating means for creating a load of each section belonging to section load data as section load data, an accident section setting means for arbitrarily setting an assumed accident occurrence section from a display device by an operator, and saving it in the accident section setting data, An analysis target system extracting means for extracting a branch section group without an interconnecting switch arranged in a tree shape in a distribution system, and a section load data of each branch section group becomes equal to or more than a load amount which has set a certain standard, System analysis means for determining whether a serious supply hindrance will occur if an accident occurs in the accident section assumed in the accident section setting data, and storing it in the analysis result data; A distribution system monitoring device comprising: an analysis result display means for displaying result data on a display device. 8. A system database for storing the capacity and connection state of each device constituting the distribution system, and an interconnected switch in a standard state for interconnecting the distribution lines, which is in an off state, is extracted from the system database. The distribution lines to be supplied to both end sections of the extracted interconnection switch are searched, and from the upper system of the bank to which each distribution line belongs, for each interconnection switch of each distribution line, the interconnection switch is connected to a different bank. It has a system analysis means for checking whether it is an interconnection switch and storing it in the analysis result data, and an analysis result display means for displaying this analysis result data on a display device. A distribution system monitoring device characterized by constantly displaying whether supply systems on both sides of a switch are different systems or the same system. 9. A system database for storing the capacity and connection status of each device constituting the power distribution system, and an interconnecting switch setting for designating an interconnecting switch arbitrarily set by an operator from a display device to the system analysis means. Means and distribution lines that supply both end sections of the specified switch are searched, and from the upper system of the bank to which each distribution line belongs, for each interconnection switch of each distribution line, the interconnection switch is A distribution system monitoring device, comprising: a system analysis unit that checks whether or not the switch is an interconnection switch and stores the analysis result data, and an analysis result display unit that displays the analysis result data on a display device. 10. A switch current on / off state creating means for creating and storing switch current on / off state data from switch information inputted from a remote monitoring control device, and a capacity of each device constituting a power distribution system. A system database that stores the connection state, and a switch in a currently-off state that interconnects each distribution line is extracted from the system database and the switch-on / off-state data to supply both end sections of the switch. A system analysis that searches for the higher-level system of the bank to which the distribution line belongs, checks for each interconnection switch of each distribution line whether the interconnection switch is an interconnection switch with a different bank, and saves it in the analysis result data A distribution system monitoring device, comprising: means and an analysis result display means for displaying analysis result data on a display device. 11. A switch current ON / OFF state generating means for generating and storing switch current ON / OFF state data from the switch information inputted from the remote monitoring control device, a capacity of each device constituting a power distribution system, and the like. Supply the system database that stores the connection status, the interconnection switch setting unit that specifies the interconnection switch arbitrarily set by the operator from the display device to the system analysis unit, and both end sections of the specified interconnection switch Search the upper system of the bank to which each distribution line belongs, check whether the interconnection switch is an interconnection switch with a different bank for each interconnection switch of each distribution line, and save it in the analysis result data A distribution system monitoring device comprising: a system analysis unit; and an analysis result display unit that displays analysis result data on a display device. 12. A control system for a distribution system monitoring device having a system database for storing the capacity and connection status of each device constituting the distribution system, a system database for analysis, and a display device for displaying analysis result data. A section load creating section that creates load of each section belonging to the distribution line as section load data from load of the distribution line input from the remote monitoring control device according to system configuration data of the system database. Procedures and in the event of an accident,
An analysis target system extraction procedure for extracting an accident occurrence section where there is a possibility that power transmission procedures to sections other than the accident section can be created by switching equipment, and for each section extracted in this analysis target system extraction procedure Based on the section load assumed by the section load creation procedure, it is determined whether a power transmission procedure that satisfies the voltage condition and the current condition can be created and stored as analysis result data. A computer-readable storage medium storing a program for causing a computer to execute an analysis result display procedure for displaying analysis result data on the display device.