JP4878783B2 - Lightning damage assumption device, lightning damage assumption method, lightning damage assumption program and recording medium - Google Patents

Description

  The present invention relates to a lightning damage assumption device, a lightning damage assumption method, a lightning damage assumption program, and a recording medium for assuming damage caused by lightning in each power distribution facility when a lightning strike occurs. Specifically, by using information on the position of the lightning strike, the intensity of lightning strike, and the position of each distribution facility, it is possible to quickly and highly accurately estimate the damage caused by the lightning strike on each distribution facility.

  When lightning strikes, various power distribution facilities may cause equipment damage such as ground faults and short circuits due to broken insulators and disconnection of transmission and distribution lines. There are two types of equipment damage caused by lightning strikes: a power failure occurs immediately after a lightning strike, and a power failure that does not occur immediately after a lightning strike, but may lead to a power failure accident in the future.

  Equipment damage that could lead to a power outage accident in the future includes cracks in insulators. In the insulator in which the crack has occurred, water enters the crack due to rain or fog, resulting in dielectric breakdown, resulting in a ground fault or short circuit. Moreover, when the moisture in the cracks evaporates, the insulation state is canceled and the normal state is restored from the ground fault / short circuit.

  In addition, the state of damage occurring in each power distribution facility varies depending on the distance from the lightning position and the lightning intensity, and there is a risk that the closer to the lightning position or the stronger the lightning intensity, the greater the damage.

  For this reason, when various types of accidents occur due to lightning strikes, it is necessary to identify a power distribution facility that may be damaged based on information on the location of the lightning strike. As a system for locating a lightning strike position, a lightning location locating system (LLS: Lightning Location System) is used. The LLS measures electromagnetic waves caused by lightning strikes using antennas of a plurality of azimuth detection stations, and locates lightning strikes based on lightning strike direction data included in each measurement result.

  There is a possibility that the power distribution equipment located in the vicinity of the lightning strike is damaged by the method of plotting the lightning strike on the map by human work using the information on the lightning strike obtained by LLS. Identify as a thing. Furthermore, by checking the range where power can be transmitted in the power transmission system, it is possible to narrow down distribution facilities that may cause damage.

  Further, regarding a lightning position location method using LLS, a method for improving the measurement accuracy of a location point has been proposed (for example, Patent Document 1), excluding the geographical influence of each orientation section.

  In the lightning position location method disclosed in Patent Document 1, a location point is calculated using a membership function and a weighting factor set for each orientation category. This makes it possible to calculate the control point taking into account the geographical influence of each control section, and improve the measurement accuracy of the control point compared to calculating the control point only by the direction of lightning strike. is there.

  Furthermore, there has been proposed a lightning strike accident location device that identifies a power distribution facility that may be damaged based on information on a lightning strike position obtained by LLS (for example, Patent Document 2).

  The lightning strike location device disclosed in Patent Document 2 is located closest to the lightning strike position based on the information on the lightning strike location and lightning time obtained by LLS, the time of the occurrence of the accident and the information on the transmission and distribution line names. The distribution equipment to be calculated is calculated, and this distribution equipment is identified as being likely to have been damaged.

Japanese Patent Laid-Open No. 10-213641 JP 2004-333453 A

  However, the above-mentioned conventional method has the following problems in the method of identifying a distribution facility that may be damaged by lightning strikes.

  In the conventional method, there is a problem that it takes a lot of time and labor to plot the lightning strike position on the map by human work and specify the power distribution equipment located near the lightning strike position. In particular, when a large number of lightning strikes occur over a wide area, there is a large amount of information on the target LLS, which requires a lot of time and labor, making it impossible to quickly respond to an accident.

  Also, in the case of equipment damage that repeats the ground fault / short circuit state and normal state like a cracked insulator, the damage occurrence equipment cannot be narrowed down by checking the range where power can be transmitted in the transmission system. There was a problem that it was more difficult to identify the generating equipment.

  In addition, the lightning strike location method proposed in Patent Document 1 is a method for improving the accuracy of locating the location of lightning strikes, and a method for identifying distribution facilities that may cause damage due to lightning strikes. It cannot be applied.

  Moreover, the lightning strike accident location device proposed in Patent Document 2 is configured to identify a power distribution facility that may be damaged by lightning using only the distance from the lightning strike position. Therefore, the lightning intensity is not taken into consideration, and there is a problem that it is not possible to increase the accuracy of identifying a distribution facility that may cause damage.

  In addition, the lightning strike location system proposed in Patent Document 2 is likely to cause damage in the distribution facilities of the transmission and distribution lines where the accident has occurred after the occurrence of an accident due to a ground fault or short circuit. It is a configuration for specifying a certain distribution facility. For this reason, accidents such as ground faults and short circuits have not occurred, but it is not possible to identify power distribution facilities that may cause damage in the future.

  The present invention has been made to solve such a problem, and based on the information on the distance from the position of the lightning strike and the intensity of the lightning strike, it is possible to quickly and accurately assume the damage caused by the lightning strike of the power distribution facility. It is an object of the present invention to provide a lightning damage assumption device, a lightning damage assumption method, a lightning damage assumption program, and a recording medium.

In order to solve the above-described problems, a lightning strike damage estimation apparatus according to the present invention is a lightning strike damage estimation apparatus for assuming damage caused by lightning strikes at each power distribution facility when a lightning strike occurs. and the lightning information database lightning information is recorded associated information, and power distribution equipment location database the location information is recorded in advance for each power distribution facility, and the information of the recorded lightning positioned lightning information database, power distribution equipment based on the position information of each distribution facilities recorded in the location database, a distance calculation means for calculating the distance between the lightning strike position and the power distribution facility, and the calculated lightning position by the distance calculating means and the power distribution facility distance and, assuming damage to the information of lightning intensity of the lightning strike position recorded in the lightning information database, calculates a damage contemplated by lightning each distribution equipment between Means out, is characterized in that calculated by the assumed damage calculation means with an output means for outputting the damage information contemplated by lightning each power distribution equipment.

In lightning damage estimation apparatus according to the present invention, the distance calculating unit, based on the information of the recorded lightning positioned lightning information database and the position information of each distribution facilities recorded in power distribution equipment location database, and lightning position Calculate the distance to each distribution facility.

Then, the assumed damage calculation means, and the distance between the distance lightning strike position calculated by the calculation means and the respective power distribution facility, and information lightning intensity of the lightning strike position recorded in the lightning information database based on, by lightning Calculate the expected damage to each distribution facility.
After that, the output means outputs the damage information of each distribution facility assumed by the lightning strike calculated by the assumed damage calculation means.

In order to solve the above-described problem, the lightning strike damage estimation method according to the present invention is a lightning strike damage estimation method for assuming damage due to lightning strikes of each power distribution facility at the time of lightning strike. information and is recorded in lightning information lightning information database associated with, and the location information of each distribution equipment is recorded in advance in the power distribution facility location database, lightning damage estimation device, recorded in the lightning information database lightning strike position between the information, based on the position information of each distribution facilities recorded in advance in the power distribution facility location database, and calculates the distance between the lightning strike position and the power distribution facility, calculated lightning position and the power distribution facility the distance, based on the information of the lightning intensity of the lightning strike position recorded in the lightning information database, calculates a damage contemplated by lightning each distribution equipment, each power distribution equipment calculated It is characterized in that for outputting a damage information contemplated by lightning.

Between the lightning damage estimation method according to the present invention, based on the position information of each distribution facilities recorded in the information and power distribution equipment location database of recorded lightning positioned lightning information database, a lightning strike location and the power distribution facility The distance is calculated.

Thereafter, the calculated lightning position and distance between each power distribution equipment, based on the information of the lightning intensity of the lightning strike position of the lightning strike position recorded in the lightning information database, each power distribution equipment envisioned by lightning Damage is calculated.
After that, damage information of each distribution facility assumed by the calculated lightning strike is output.

In order to solve the above-described problem, the lightning damage estimation program according to the present invention is
At least, with the lightning information database lightning information information lightning position and lightning strength associated is recorded, location information of each distribution facility and a prerecorded distribution facilities location database, lightning strikes generated by the computer a lightning damage estimation program for performing damage estimation from lightning distribution facilities, and information recorded lightning positioned lightning information database and the position information of each distribution facilities recorded in power distribution equipment location database based on and calculating a distance between the lightning strike position and the power distribution facility, and calculated lightning position and distance between each distribution equipment, and information lightning intensity of the lightning strike position recorded in the lightning information database Based on the step, calculate the damage assumed by the lightning strike of each distribution facility, and output the damage information assumed by the lightning strike of each distribution facility It is characterized in that to execute the steps in the computer.

In order to solve the above-described problem, a recording medium according to the present invention is
At least, with the lightning information database lightning information information lightning position and lightning strength associated is recorded, location information of each distribution facility and a prerecorded distribution facilities location database, lightning strikes generated by the computer Lightning damage information recorded in the lightning strike information database, and the location information of each distribution equipment recorded in the power distribution location database. based on, a step of calculating a distance between the lightning strike position and the power distribution facility, and calculated lightning position and distance between each power distribution equipment, recorded in the lightning information database of lightning intensity of the lightning strike position based on the information, a step of calculating the damage contemplated by lightning each power distribution equipment, envisioned by lightning each distribution facility calculated Program for executing a step of outputting harm information is characterized in that it has been properly recorded.

In the lightning damage prediction program according to the present invention, the computer operates as follows. And information has been lightning position recorded in the lightning information database, based on the position information of each distribution facilities recorded in power distribution equipment location database, a distance between the lightning strike location and the distribution equipment is calculated.

Thereafter, the calculated lightning position and distance between each power distribution equipment, based on the information of the lightning intensity of the lightning strike position recorded in the lightning information database, calculates the damage of the power distribution equipment envisioned by lightning Is done.
After that, damage information of each distribution facility assumed by the calculated lightning strike is output.

  According to the lightning strike damage estimation apparatus according to the present invention, it is possible to quickly assume damage occurrence due to lightning strikes for each distribution facility based on the lightning strike position, lightning intensity, and position information of each distribution facility.

  Moreover, since it is the structure which assumes the damage by the lightning strike of a power distribution equipment using the distance from a lightning strike position, and the information of a lightning strike intensity | strength, the precision of damage assumption can be improved.

  In addition, regardless of whether or not an accident such as a ground fault or short circuit has occurred, the distribution facilities are assumed to be damaged by lightning strikes. Therefore, identify the distribution facilities that may cause damage in the future. Can do. Furthermore, even in the case of equipment damage that repeats a ground fault / short circuit state and a normal state, the damage occurrence equipment can be easily identified.

  According to the lightning strike damage estimation method according to the present invention, it is possible to quickly estimate the occurrence of damage due to lightning strikes for each distribution facility based on the lightning strike position, lightning intensity, and position information of each distribution facility.

  Moreover, since it is the method of estimating the damage by the lightning strike of a power distribution equipment using the distance from a lightning strike location, and the information of a lightning strike intensity | strength, the precision of damage assumption can be improved.

  In addition, regardless of whether an accident such as a ground fault or short circuit has occurred, it is a method that assumes damage due to lightning strikes of each distribution facility. Therefore, identify the distribution facilities that may cause damage in the future. Can do. Furthermore, even in the case of equipment damage that repeats a ground fault / short circuit state and a normal state, the damage occurrence equipment can be easily identified.

  According to the lightning damage estimation program according to the present invention, it is possible to cause a computer to execute an assumption of lightning damage caused by a lightning strike on each power distribution facility based on the position of the lightning strike, the lightning intensity, and the position information of each power distribution facility.

  Moreover, since the damage from the lightning strike of the power distribution facility is assumed using the distance from the lightning strike location and the information of the lightning strike intensity, the accuracy of the damage assumption executed by the computer can be improved.

  In addition, regardless of whether an accident such as a ground fault or short circuit has occurred, the computer assumes the damage caused by lightning strikes on each distribution facility, so identify the distribution facilities that may cause damage in the future. be able to. Furthermore, even in the case of equipment damage that repeats a ground fault / short circuit state and a normal state, the damage occurrence equipment can be easily identified.

  DESCRIPTION OF EMBODIMENTS Embodiments of a lightning damage assumption apparatus, a lightning damage assumption method, and a lightning damage assumption program according to the present invention will be described below with reference to the drawings.

<Configuration example of the lightning strike damage device of this embodiment>
FIG. 1 is a block diagram showing an entire lightning strike damage estimation system 2 that uses a lightning strike damage forecasting apparatus 1 according to the present embodiment to estimate damage to power distribution facilities due to lightning strikes. FIG. 1 shows an example in which a lightning damage assumption system 2 performs management of each power distribution facility installed in a predetermined area for each office. FIG. 2 is an explanatory diagram of information names and information contents for each piece of information used in the lightning damage estimation device 1.

  The lightning damage assumption system 2 and the lightning damage assumption apparatus 1 are configured as described below, for example.

  As shown in FIG. 1, a lightning damage assumption system 2 includes a lightning damage assumption device 1, an LLS 3, and a feeder / power substation 5 in the office connected by a telecommunication network 4.

  The lightning strike damage estimation apparatus 1 includes an LLS database 6, a distribution facility position database 7, a distribution facility correspondence database 8, an arithmetic processing device 9, and a display 10.

  The arithmetic processing device 9 includes a storage device such as a CPU (Central Processing Unit) and an HDD (Hard Disk Drive), for example, and includes an in-office determination unit 11, a distance calculation unit 12, a lightning strike position vicinity determination unit 13, The power distribution equipment extraction unit 14, the state change confirmation unit 15, and the assumed damage rank calculation unit 16 are configured.

  As described above, the LLS 3 measures electromagnetic waves caused by lightning strikes using the antennas of a plurality of azimuth detection stations, and locates lightning strike positions based on lightning strike direction data included in the respective measurement results. The LLS 3 outputs information on the lightning strike time, lightning position (latitude, longitude), and lightning intensity as the LLS information 17. The LLS information 17 is an example of lightning strike information.

  The LLS database 6 includes a storage device such as an HDD. The LLS database 6 receives the LLS information 17 output from the LLS 3 and records the input LLS information 17 as readable information in response to a request from an external device. The LLS database 6 outputs LLS information 17 in response to a request from the arithmetic processing device 9. The LLS database 6 is an example of a lightning strike information database.

  The distribution facility location database 7 includes a storage device such as an HDD. In the distribution facility position database 7, position information of each distribution facility including at least a distribution pole, a feeder, and a power substation in the office is recorded in advance as information that can be read in response to a request from an external device. The distribution facility location database 7 outputs the recorded location information of each distribution facility as distribution facility location information 18 in response to a request from the arithmetic processing device 9.

  The distribution facility correspondence database 8 includes a storage device such as an HDD. In the distribution facility correspondence database 8, correspondence relationships based on the arrangement and connection relationships of at least the distribution poles, feeders, and substations in the office are recorded in advance as information that can be read out in response to a request from an external device. Has been.

  The distribution facility correspondence database 8 outputs the recorded distribution facility correspondence information 19 in response to a request from the arithmetic processing unit 9.

  The arithmetic processing unit 9 executes the lightning strike damage estimation program recorded in the HDD or the like, thereby determining the in-office determination unit 11, the distance calculation unit 12, the lightning position vicinity determination unit 13, the corresponding distribution facility extraction unit 14, and the state change The confirmation unit 15 and the assumed damage rank calculation unit 16 are realized.

  The LLS information 17 is input from the LLS database 6 to the in-office determination unit 11 of the arithmetic processing unit 9. The arithmetic processing unit 9 adds a lightning strike title to the input LLS information 17 and processes each lightning strike title individually.

  The in-office determination unit 11 adds a lightning strike title to the input LLS information 17 to obtain the processing target LLS information 36. The in-office determination unit 11 determines, for each lightning strike, whether or not it is a lightning strike that affects the power distribution equipment in the office based on the information on the lightning strike position in the processing target LLS information 36. The in-office determination unit 11 discards lightning strike subjects that are determined to have no effect on the distribution facilities in the office.

  For a lightning strike subject that has been determined to have an effect on the power distribution equipment in the establishment, the processing target LLS information 36 is output to the distance calculation unit 12 as the establishment-related LLS information 20.

  The distance calculation unit 12 receives the establishment-related LLS information 20 output from the in-office determination unit 11. Further, the distance calculation unit 12 receives the distribution facility position information 18 in the office from the distribution facility position database 7.

  The distance calculation unit 12 calculates the distance between the lightning strike position and each distribution facility based on the information on the lightning strike position and the distribution facility position information 18 of the input business-related LLS information 20, and the distance between the lightning strike position and the distribution facility. 21 is output. The distance calculation unit 12 is an example of a distance calculation unit.

  The lightning strike position vicinity determination unit 13 receives the establishment-related LLS information 20 and the lightning strike position-distribution equipment distance 21 output from the distance calculation unit 12. The lightning strike position vicinity determination unit 13 determines the presence / absence of a power distribution column located within a predetermined distance (proximity determination distance) from the lightning strike position based on the input lightning strike position-distribution facility distance 21.

  The length of the proximity determination distance used for the determination is set to 100 m, for example, from the relationship between the distance between the lightning strike position and the power distribution facility and the damage caused to the power distribution facility by the lightning strike. The business-related LLS information 20 of the lightning strike subject determined that there is no distribution pole located within a predetermined distance from the lightning strike location is stored as reference information.

  When there is a power distribution column located within a predetermined distance from the lightning strike position, the lightning strike position vicinity determination unit 13 identifies the power distribution column as the specific power distribution column and outputs the specific power distribution column name as the specific power distribution column information 22. At the same time, the establishment-related LLS information 20 is specified and output as specific LLS information 23. The lightning strike position vicinity determination unit 13 is an example of specific lightning strike information / distribution facility extraction means.

  The corresponding distribution facility extraction unit 14 receives the specific distribution column information 22 output from the lightning strike position vicinity determination unit 13. The corresponding distribution facility extraction unit 14 receives the distribution facility correspondence information 19 output from the distribution facility correspondence database 8.

  The corresponding distribution facility extraction unit 14 extracts the distribution column, feeder and substation corresponding to the specific distribution column from the input specific distribution column information 22 and the distribution facility correspondence information 19 and outputs it as the corresponding distribution facility information 24. To do. The corresponding distribution facility extraction unit 14 is an example of a corresponding distribution facility extraction unit.

  The state change confirmation unit 15 receives the corresponding distribution facility information 24 output from the corresponding distribution facility extraction unit 14 and the specific LLS information 23 output from the lightning strike position vicinity determination unit 13. The state change confirmation unit 15 extracts the feeder / power substation 5 corresponding to the specific distribution pole based on the input corresponding distribution facility information 24.

  Further, the state change confirmation unit 15 confirms the state change within a predetermined time from the lightning strike time of the specific LLS information 23 for the feeder / power generation substation 5 corresponding to the specific distribution pole. The state change includes, for example, a ground fault, a short circuit, or a distribution line accident detected at the substation. Further, the state change confirmation unit 15 confirms a state change within 2 seconds to 5 seconds after the lightning strike time, for example, in order to confirm a state change related to the lightning strike.

  Further, the state change confirmation unit 15 obtains information on the state change of the feeder / power generation substation 5 corresponding to the specific distribution pole as the state change information 25 through the telecommunication network 4. The state change confirmation unit 15 stores, as reference information, specific LLS information 23 of a lightning strike subject that does not change state within a predetermined time from a lightning strike in the feeder / power substation 5 corresponding to the specific distribution pole 22.

  The state change confirmation unit 15 sends state change information 25 to the assumed damage rank calculation unit 16 for a lightning strike subject whose state has changed within a predetermined time from the lightning strike time to the feeder / power substation 5 corresponding to the specific distribution pole. Output. Further, the state change confirmation unit 15 outputs the corresponding distribution facility information 24 to the assumed damage rank calculation unit 16. The state change confirmation unit 15 is an example of a state change confirmation unit.

  The assumed damage rank calculation unit 16 receives state change information 25, corresponding distribution facility information 24, specific LLS information 23, and a lightning strike position-distribution facility distance 21. The assumed damage rank calculation unit 16 calculates and ranks assumed damage for each distribution facility corresponding to the specific distribution pole.

  Further, the assumed damage rank calculation unit 16 calculates the assumed damage rank for each distribution facility corresponding to the specific distribution pole, inputs the state change information 25, the lightning intensity information of the specific LLS information 23, and between the lightning position and the distribution facility. Based on distance 21.

  Further, the assumed damage rank calculation unit 16 outputs the calculation result to the display 10 as assumed damage rank information 26 after calculating the assumed damage rank. The assumed damage rank calculation unit 16 is an example of an assumed damage calculation unit.

  The display 10 receives the assumed damage rank information 26 and displays the assumed damage rank information. The display 10 is an example of output means.

<Operation example of the lightning strike damage estimation device of the present embodiment>
Next, an example of operation of the lightning damage assumption system 1 and the lightning damage assumption system 2 using the lightning damage assumption apparatus 1 described in FIG. 1 will be described as an embodiment of a lightning damage assumption method and a lightning damage assumption program. .

  FIG. 3 is an example of a flowchart of a lightning damage prediction program executed by the lightning damage prediction apparatus 1. 4 and 5 are explanatory diagrams showing examples of screen display of the assumed damage rank information 26 on the display 10 of the lightning damage assumed apparatus 1. FIG. FIG. 4 shows an example in which the assumed damage rank information 26 is displayed on a map, and FIG. 5 shows an example in which the assumed damage rank information 26 is displayed in a table format.

  In the following, as shown in FIG. 4, when there are lightning strikes a and b near the distribution facilities in which the distribution poles 27 a to 27 j and the substation 28 are connected by the transmission line 29, An example of calculating the assumed damage rank information 26 for each distribution facility will also be described. The lightning strike time, lightning strike position, and lightning intensity of lightning strike a and lightning b are as shown in FIGS.

  In the lightning strike damage estimation system 2 using the lightning strike damage forecasting apparatus 1 shown in FIG. 1, when a lightning strike occurs, calculation and ranking of the assumed damage due to the lightning strike is performed on each distribution facility, and the result is displayed on the display 10. Is output.

  Further, in the lightning strike damage estimation system 2, when there are a plurality of lightning strike points as shown in FIGS. 4 and 5, each lightning strike is processed individually.

  In the lightning damage assumption system 2 using the lightning damage assumption device 1, the calculation and output of the assumed damage rank information 26 of each distribution facility at the time of lightning is performed as follows.

  First, at the time of occurrence of a lightning strike, at least a lightning strike time, a lightning strike position (latitude, longitude), and a lightning strike intensity are determined by the LLS 3 and are output to the LLS database 6 as LLS information 17 as needed. The LLS information 17 input to the LLS database 6 is stored in the LLS database 6 as information that can be read in response to a request from an external device.

  The arithmetic processing unit 9 reads and takes in the LLS information 17 from the LLS database 6 (S1 in FIG. 3). The arithmetic processing unit 9 adds a lightning strike title to the captured LLS information 17 and processes each lightning strike title individually.

  The LLS information 17 captured by the arithmetic processing device 9 is input to the in-office determination unit 11. In the in-office determination unit 11, a lightning strike title is added to the input LLS information to obtain the processing target LLS information 36. Further, the in-office determination unit 11 determines whether or not the lightning strike is a lightning strike affecting the power distribution equipment in the office based on the information on the lightning strike position in the processing target LLS information 36 (S2 in FIG. 3). This determination is made based on whether or not the lightning strike position of the processing target LLS information 36 is within a predetermined area.

  If it is determined that the lightning strike does not affect the power distribution equipment at the site, the lightning strike subject will be discarded. When it is determined that the lightning strike has an influence on the power distribution equipment in the establishment, the processing target LLS information 36 of the subject of the lightning strike is output to the distance calculation unit 12 as the establishment-related LLS information 20.

  In the example shown in FIGS. 4 and 5, lightning strike a and lightning b are lightning strikes that occur in the vicinity of the power distribution equipment in the office, and therefore, it is determined that the power distribution equipment in the office is affected. The processing target LLS information 36 is output to the distance calculation unit 12 as the establishment-related LLS information 20.

  Thereafter, the arithmetic processing unit 9 reads out and loads the distribution facility position information 18 from the distribution facility position database 7 (S3 in FIG. 3). The distribution facility position information 18 captured by the arithmetic processing device 9 is input to the distance calculation unit 12.

  The distance calculation unit 12 calculates the distance between the lightning strike position and each distribution facility based on the lightning strike position and the distribution facility location information 18 of the input business-related LLS information 20 (S4 in FIG. 3). The calculated distance between the lightning strike position and each distribution facility is output to the lightning strike position vicinity determination unit 13 together with the establishment-related LLS information 20 as the lightning strike position-distribution facility distance 21.

  The lightning strike position vicinity determination unit 13 determines the presence / absence of a distribution pole located within a predetermined distance (proximity determination distance) from the lightning strike position, based on the input business-related LLS information 20 and the lightning strike position-distribution equipment distance 21. (S5 in FIG. 3). As the length of the proximity determination distance, for example, 100 m is set from the relationship between the distance between the lightning strike position and the power distribution facility and the damage caused to the power distribution facility by the lightning strike.

  If there is no distribution pole located within a predetermined distance from the lightning strike position, the lightning strike vicinity determination unit 13 stores the lightning strike title as reference information. When there is a power distribution column located within a predetermined distance from the lightning strike position, the power distribution column is specified as a specific power distribution column. At the same time, the establishment-related LLS information 20 is specified as specific LLS information 23 (S6 in FIG. 3).

  In the example shown in FIGS. 4 and 5, since the distribution pole 27e is located within 100 m from the lightning strike position 30 of the lightning strike a, the distribution pole 27e is identified as a specific distribution pole, and the business-related LLS information of the lightning strike a 20 is specified as specific LLS information 23.

  Furthermore, since the distribution poles 27h and 27g are located within 100 m from the lightning strike position 31 of the lightning strike b, the distribution poles 27h and 27g are identified as the specific distribution poles, and the establishment-related LLS information 20 of the lightning strike b is the specific LLS information. 23.

  Information on the specific distribution column is output to the corresponding distribution facility extraction unit 14 as specific distribution column information 22. Information of the specific LLS information 23 is output to the state change unit 15 and the assumed damage rank calculation unit 16.

  Thereafter, the arithmetic processing unit 9 reads and loads the distribution facility correspondence information 19 from the distribution facility correspondence database 7 (S7 in FIG. 3). The distribution facility correspondence information 19 captured by the arithmetic processing device 9 is input to the corresponding distribution facility extraction unit 14.

  The corresponding distribution facility extraction unit 14 extracts distribution columns, feeders and substations corresponding to the specific distribution columns based on the input specific distribution column information 22 and the distribution facility correspondence information 19 (S8 in FIG. 3). . The extracted information on each distribution facility is output to the state change confirmation unit 15 as the corresponding distribution facility information 24.

  In the example shown in FIGS. 4 and 5, the distribution columns 27a to 27j, the substation 28, and the transmission line 29 corresponding to the distribution columns 27e, 27h, and 27g, which are specific distribution columns, are extracted as the corresponding distribution facility information 24. The

  The state change confirmation unit 15 extracts the feeder / power substation 5 corresponding to the specific distribution pole based on the input corresponding distribution facility information 24 and the specific LLS information 23 (S9 in FIG. 3). Further, the state change confirmation unit 15 confirms a state change within a predetermined time from the lightning strike time of the specific LLS information 23 for the feeder / power substation 5 corresponding to the extracted specific distribution pole. The state change includes, for example, a ground fault, a short circuit, or a distribution line accident detected at the substation.

  In addition, the state change confirmation unit 15 confirms, for example, a state change within 2 seconds before and 5 seconds after the lightning strike in order to confirm a state change related to the lightning strike.

  In the example shown in FIGS. 4 and 5, the substation 28 is extracted as the feeder / power substation 5 corresponding to the specific distribution pole, and the state between 2 seconds before and 5 seconds after the lightning strike time of the lightning strike a and the lightning strike b Changes are confirmed.

  The arithmetic processing unit 9 obtains the state change within a predetermined time for the feeder / power generation substation 5 corresponding to the specific distribution pole as the state change information 25 through the telecommunication network 4 and inputs it to the state change confirmation unit 15. (S10 in FIG. 3).

  The state change confirmation unit 15 confirms the presence / absence of a state change within a predetermined time from the lightning strike at the feeder / power generation substation 5 corresponding to the specific distribution pole (S11 in FIG. 3). In the feeder / power substation 5 corresponding to the specific power distribution pole, the subject of the lightning strike that does not change state within a predetermined time from the lightning strike time is stored as reference information.

  Further, in the state change confirmation unit 15, the state change information 25 is sent to the assumed damage rank calculation unit 16 for the lightning strike subject whose state has changed within a predetermined time from the lightning strike time to the feeder / power substation 5 corresponding to the specific distribution pole. Are output. Corresponding power distribution facility information 24 is also output to the assumed damage rank calculation unit 16.

  In the example shown in FIGS. 4 and 5, a ground fault is confirmed at the substation 28 within 2 seconds to 5 seconds after the lightning strike time of the lightning strikes a and b. For this reason, the state change information 25 including the ground fault information confirmed at the substation 28 and the corresponding distribution facility information 24 are output to the assumed damage rank calculation unit 16.

  The assumed damage rank calculation unit 16 calculates and ranks assumed damage for each distribution facility corresponding to the specific distribution pole. The calculation and ranking of the assumed damage to each distribution facility is performed based on the input state change information 25, the information on the lightning intensity of the specific LLS information 23, and the distance 21 between the lightning position and the distribution facility.

  In the example shown in FIGS. 4 and 5, calculation and ranking of assumed damage to the distribution poles 27a to 27j, the substation 28, and the transmission line 29 are performed as follows, for example.

Ranking is performed by, for example, A rank, B rank, and C rank. The contents of each assumed damage rank are as follows.
Rank A: The possibility that equipment damage has occurred is very high and inspection must be performed Rank B: Equipment damage is likely to have occurred and inspection C rank must be performed ... Equipment damage It is unlikely that a fault has occurred and inspection is not necessary. First, it was detected at substation 28, which was a state change that occurred within 2 seconds to 5 seconds after the lightning strike time of lightning strikes a and b. Distribution facilities that may be related to ground faults are extracted. In the example illustrated in FIGS. 4 and 5, the distribution poles 27 a to 27 j, the substation 28, and the transmission line 29 are extracted.

  The estimated damage rank is calculated for the extracted power distribution equipment based on the lightning intensity and the distance from the lightning location. The relationship between the distance from the lightning strike position and the assumed damage rank is determined by the lightning strike intensity. In lightning strike a and lightning strike b, as shown by 32 to 35 in FIG. 4, the relationship between the distance from the lightning strike position and the assumed damage rank is determined.

  For lightning strike a, the power distribution equipment located within the range of lightning strike a rank A32 is determined as A rank, and the power distribution equipment located within the range of lightning strike a rank B33 is determined as B rank. Regarding lightning strike b, the power distribution equipment located within the range of lightning strike b rank A34 is determined as A rank, and the power distribution equipment located within the range of lightning strike b rank B35 is determined as B rank.

  The assumed damage rank information 26 of each distribution facility calculated by such a method is output to the display 10.

  Moreover, in the example mentioned above, it was set as the structure which calculates an assumed damage rank about each distribution equipment, only when a state change can be confirmed in the feeder and substation 5 which have a corresponding relationship with a specific distribution pole. However, even when a change in state cannot be confirmed in the feeder / power substation 5 that has a corresponding relationship with the specific distribution pole, a configuration may be adopted in which an assumed damage rank is calculated for each distribution facility.

  As a result, it is possible to identify a power distribution facility that currently has no accident such as a ground fault or a short circuit, but may have a damage that may lead to an accident in the future.

  On the display 10, the assumed damage rank information 26 input as shown in FIGS. 4 and 5 is displayed. In the method of displaying the assumed damage rank information 26 shown in FIG. 4 on the map, it is possible to easily grasp visually the range and positional relationship of each distribution facility that may cause damage. Particularly for the power transmission line 29, it is possible to easily grasp a range where there is a high possibility that damage such as disconnection has occurred.

  In the method of displaying the assumed damage rank information 26 shown in FIG. 5 in a tabular format, the distribution facilities are displayed in the order of the assumed damage rank. Therefore, the distribution facilities are displayed in descending order of the possibility that damage has occurred. It can be easily grasped.

  According to the lightning damage estimation device 1 according to the present invention, based on the LLS information 17 including the lightning time, the lightning position and the lightning intensity, and the power distribution equipment position information 18, it is possible to quickly estimate the occurrence of damage due to lightning for each power distribution equipment. And easily.

  Moreover, since it is the structure which assumes the damage by the lightning strike of each power distribution equipment using not only the distance from a lightning strike position but the information of lightning strike intensity, the accuracy of damage assumption can be improved.

  Moreover, according to the lightning damage estimation device 1 according to the present invention, the presence / absence of a state change is confirmed with respect to the feeder / power substation 5 corresponding to the specific distribution pole, and the assumed damage rank of each distribution facility corresponding to the specific distribution pole is confirmed. It is the structure which calculates. For this reason, it is possible to narrow down facilities that may cause damage.

  Furthermore, according to the lightning strike damage estimation apparatus 1 according to the present invention, the presence / absence of a state change is confirmed for the feeder / power substation 5 corresponding to the specific distribution pole, and the assumed damage rank is calculated only when there is a state change. It is a possible configuration. As a result, the processing target of the arithmetic processing device 9 can be narrowed down, and the load on the arithmetic processing device 9 can be reduced.

  Moreover, according to the lightning strike damage estimation apparatus 1 according to the present invention, it is possible to calculate an assumed damage rank for all power distribution facilities that may be damaged by lightning strikes. Thereby, even in the case of equipment damage that repeats a ground fault / short circuit state and a normal state, it is possible to easily identify the damage occurrence equipment.

<Operation Example of Lightning Damage Assumption Device of Other Embodiment>
Next, in the lightning strike damage estimation apparatus 1 shown in FIG. 1, an example in which the distribution facility correspondence database 8, the lightning position vicinity determination unit 13, the corresponding distribution facility extraction unit 14, and the state change confirmation unit 15 are not provided (lightning strike). An example of the operation of the assumed damage apparatus 1 ′ will be described.

  In the following, as shown in FIG. 4, when there are lightning strikes a and b near the distribution facilities in which the distribution poles 27 a to 27 j and the substation 28 are connected by the transmission line 29, An example of calculating the assumed damage rank information 26 for each distribution facility will be described. The lightning strike time, lightning strike position, and lightning intensity of lightning strike a and lightning b are as shown in FIGS.

  In the lightning damage assumption system 2 using the lightning damage assumption device 1 ′, the calculation and ranking of the assumed damage due to lightning strikes are performed for each distribution facility at the time of lightning strike, and the result is output on the display 10. . As shown in FIGS. 4 and 5, when there are a plurality of lightning strike points, each lightning strike is processed individually.

  In the lightning damage assumption system 2 using the lightning damage assumption device 1 ', calculation and output of the assumed damage rank information 26 of each distribution facility at the time of lightning is performed as follows.

  First, at the time of occurrence of a lightning strike, at least the lightning strike time, the lightning strike position (latitude, longitude), and the lightning strike intensity are determined by the LLS 3, output to the LLS database 6 as LLS information 17, and stored in the LLS database 9.

  The arithmetic processing unit 9 reads and captures the LLS information 17 from the LLS database 6 (S1 in FIG. 3), adds a lightning strike title to the input LLS information 17, and processes each lightning strike title individually.

  The LLS information 17 captured by the arithmetic processing device 9 is input to the in-office determination unit 11. In the in-office determination unit 11, a lightning strike title is added to the input LLS information to obtain the processing target LLS information 36. Further, the in-office determination unit 11 determines whether or not the lightning strike is a lightning strike affecting the power distribution equipment in the office based on the processing target LLS information 36 (S2 in FIG. 3). This determination is made based on whether or not the lightning strike position of the processing target LLS information 36 is within a predetermined area.

  If it is determined that the lightning strike does not affect the power distribution equipment at the site, the lightning strike subject will be discarded. When it is determined that the lightning strike has an influence on the power distribution equipment in the establishment, the processing target LLS information 36 of the subject of the lightning strike is output to the distance calculation unit 12 as the establishment-related LLS information 20.

  In the example shown in FIGS. 4 and 5, lightning strike a and lightning b are lightning strikes that occur in the vicinity of the power distribution equipment in the office, and therefore, it is determined that the power distribution equipment in the office is affected. The processing target LLS information 36 is output to the distance calculation unit 12 as the establishment-related LLS information 20.

  Thereafter, the arithmetic processing unit 9 reads out and loads the distribution facility position information 18 from the distribution facility position database 7 (S3 in FIG. 3). The distribution facility position information 18 captured by the arithmetic processing device 9 is input to the distance calculation unit 12.

  The distance calculation unit 12 calculates the distance between the lightning strike position and each distribution facility based on the lightning strike position and the distribution facility location information 18 of the input business-related LLS information 20 (S4 in FIG. 3). The calculated distance between the lightning strike position and each distribution facility is output to the assumed damage rank calculation unit 16 together with the establishment-related LLS information 20 as the lightning strike position-distribution facility distance 21.

  The assumed damage rank calculation unit 16 calculates and ranks assumed damage for each distribution facility. Further, the calculation and ranking of the assumed damage to each distribution facility is performed based on the information on the lightning intensity of the input business-related LLS information 20 and the distance 21 between the lightning position and the distribution facility.

  In the example shown in FIGS. 4 and 5, calculation and ranking of assumed damage to the distribution poles 27a to 27j, the substation 28, and the transmission line 29 are performed as follows, for example. Ranking is performed by, for example, A rank, B rank, and C rank. The contents of each assumed damage rank are as described above.

  For each power distribution facility, the estimated damage rank is calculated based on the lightning intensity and the distance from the lightning location. The relationship between the distance from the lightning strike position and the assumed damage rank is determined by the lightning strike intensity. In lightning strike a and lightning strike b, as shown by 32 to 35 in FIG. 4, the relationship between the distance from the lightning strike position and the assumed damage rank is determined.

  The assumed damage rank information 26 of each distribution facility calculated by such a method is output to the display 10.

  On the display 10, the assumed damage rank information 26 input as shown in FIGS. 4 and 5 is displayed.

  Compared with the lightning damage damage device 1, the lightning damage damage prediction system 2 using the lightning damage damage prediction device 1 ′ has a distribution facility correspondence database 8, a lightning position vicinity determination unit 13, a corresponding distribution facility extraction unit 14, and a state change check. Since the portion 15 is not provided, it can be configured easily and at low cost.

  The present invention is applied to a lightning damage assumption apparatus, a lightning damage assumption method, a lightning damage assumption program, and a recording medium for assuming damage caused by lightning strikes in each power distribution facility when a lightning strike occurs.

It is explanatory drawing which shows the example of the lightning strike damage estimation apparatus of this Embodiment. It is explanatory drawing of the information name and information content of the information used with the lightning strike damage estimation apparatus of this Embodiment. It is explanatory drawing which shows the example of the flowchart of the lightning strike damage estimation program of this Embodiment. It is an example of a screen display of the lightning strike assumption apparatus of this Embodiment. It is the example of a screen display of the lightning strike damage assumption apparatus of this Embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lightning damage assumption apparatus 2 Lightning damage assumption system 6 LLS database 7 Distribution equipment position database 8 Distribution equipment correspondence database 9 Arithmetic processing device 10 Display 12 Distance calculation part 13 Lightning position vicinity judgment part 14 Corresponding distribution equipment extraction part 15 State change confirmation Part 16 Expected damage rank calculation part

Claims (10)

A lightning strike damage estimation device for assuming damage caused by lightning strikes at each power distribution facility when a lightning strike occurs,
At least, the lightning information database lightning information and information of the lightning intensity lightning strike position is associated is recorded,
A distribution facility location database in which position information of each distribution facility is recorded in advance;
Based the information has been lightning position recorded in the lightning strike information database, and said recorded in the distribution equipment location database the location information of each power distribution facility, and calculates the distance between the lightning position and the respective power distribution equipment A distance calculating means;
Based distance and the information of lightning strength has been the lightning strike position recorded in the lightning strike information database between the calculated lightning position each power distribution equipment by the distance calculating means, assume by the lightning strike of the distribution equipment Assumed damage calculation means for calculating the damage to be done,
A lightning strike damage estimation apparatus comprising: output means for outputting damage information assumed by the lightning strike of each of the distribution facilities calculated by the assumed damage calculation means. In the lightning strike information database, lightning strike information associated with at least lightning strike time is recorded in the information on the lightning strike position and lightning intensity,
Lightning strike information calculated by the distance calculation means and the distance between the power distribution facilities and the lightning distribution information within the predetermined length, and the lightning strike information and the specific lightning information for extracting the power distribution facilities as the specific lightning strike information and the specific power distribution facility, respectively.・ Distribution equipment extraction means;
Distribution facility correspondence database in which correspondence information between the distribution facilities is recorded in advance;
Based on the information in the distribution facility correspondence database, the distribution facility extraction means for extracting the distribution facility in correspondence with the specific distribution facility as a corresponding distribution facility;
The corresponding distribution for extracted said corresponding power distribution equipment in facilities extracting means, and a state change checking means for checking a state change in the specific lightning information predetermined time lightning time,
The assumed damage calculation means, distance and the lightning between the corresponding power distribution equipment state change information of which has been confirmed, the respective corresponding power distribution equipment as calculated lightning position by said distance calculating means by said state change checking means The lightning strike damage estimation device according to claim 1, wherein a damage assumed by the lightning strike is calculated for each of the corresponding distribution facilities based on information on the lightning strike intensity at the position. The said assumed damage calculation means ranks the damage assumed by the lightning strike of each said distribution equipment according to the presence or absence of the assumed damage and the magnitude of the assumed damage. 2. Lightning damage estimation device according to 2. The lightning damage estimation device according to any one of claims 1 to 3, wherein each of the distribution facilities includes a distribution pole, a transmission line, a power plant, and a substation. The lightning damage estimation device according to any one of claims 1 to 4, wherein the output means includes a display device. 6. The lightning strike damage estimation apparatus according to claim 5, wherein the output means displays the assumed damage information of each power distribution facility on a map. The lightning damage estimation device according to claim 5, wherein the output means displays the assumed damage information of each distribution facility in a table format. A lightning damage estimation method for estimating damage caused by lightning strikes at each power distribution facility when a lightning strike occurs, at least lightning strike information in which lightning location and lightning intensity information are associated is recorded in a lightning strike information database, and , Location information of each distribution facility is recorded in the distribution facility location database in advance,
Based the information has been lightning position recorded in the lightning strike information database and the position information of each distribution facilities recorded before Symbol power distribution equipment location database, and calculates the distance between the lightning position and the respective power distribution equipment ,
Calculated calculated lightning position and distance between the respective power distribution equipment, based on the information of the lightning strength has been the lightning strike position recorded in the lightning strike information database, the damage envisaged by the lightning strike of the distribution equipment And
A lightning damage estimation method, characterized by outputting the calculated damage information due to lightning strikes of each distribution facility. At least, with the lightning information database lightning information information lightning position and lightning strength associated is recorded, location information of each distribution facility and a prerecorded distribution facilities location database, lightning strikes generated by the computer A lightning damage estimation program that estimates damage caused by lightning strikes in
Calculating the information has been lightning position recorded in the lightning strike information database, based on the position information of each distribution facilities recorded in the power distribution facility location database, a distance between the the lightning strike position each power distribution equipment When,
Calculated calculated lightning position and distance between the respective power distribution equipment, based on the information of the lightning strength has been the lightning strike position recorded in the lightning strike information database, the damage envisaged by the lightning strike of the distribution equipment And steps to
A program for lightning damage assumption, which causes a computer to execute a step of outputting the calculated damage information assumed by the lightning strike of each distribution facility. At least, with the lightning information database lightning information information lightning position and lightning strength associated is recorded, location information of each distribution facility and a prerecorded distribution facilities location database, lightning strikes generated by the computer In a recording medium that records a lightning damage estimation program that estimates lightning damage from power distribution facilities
Calculating the information has been lightning position recorded in the lightning strike information database, based on the position information of each distribution facilities recorded in the power distribution facility location database, a distance between the the lightning strike position each power distribution equipment When,
Calculated calculated lightning position and distance between the respective power distribution equipment, based on the information of the lightning strength has been the lightning strike position recorded in the lightning strike information database, the damage envisaged by the lightning strike of the distribution equipment And steps to
A recording medium on which a program for executing the step of outputting the calculated damage information assumed by lightning strikes of each of the distribution facilities is recorded.

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