JP7056499B2 - Configuration layout design method and configuration layout design equipment for power receiving and distribution equipment - Google Patents

Description

The present invention relates to a configuration layout design method and a configuration layout design device for power receiving and distribution equipment.

In recent years, when supplying power from a power source to multiple load facilities such as factory facilities scattered within a predetermined site, the power system is separated in the event of an accident to prevent the accident from spreading to others. , A power receiving and distributing facility having a double bus structure in which the first bus and the second bus are connected by a bus connecting line has been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2001-258145

In such power receiving and distribution equipment, the operating rate of the load equipment changes depending on the arrangement position of the power supply, the arrangement position of the bus connecting line, the arrangement position of the load equipment, the arrangement position of the electric equipment such as the circuit breaker, and the like. Therefore, it is an important matter at which position these electric devices, power supplies, load facilities, etc. are arranged in the power receiving and distribution equipment.

However, in the past, a method for centrally determining the arrangement positions of electrical equipment, power sources, load equipment, etc. of these power receiving and distribution equipments has not been established.

The present invention has been made in view of the above problems, and is a method for designing the configuration and arrangement of power receiving and distributing equipment, which can centrally determine the arrangement positions of electric equipment, power supply, and load equipment of power receiving and distributing equipment. And to provide a configuration layout design device.

The method for designing the configuration and layout of the power receiving and distributing equipment of the present invention is the method for designing the configuration and layout of the power receiving and distributing equipment having a double bus structure in which the first bus and the second bus are connected by a bus connecting line. A power supply that can be connected to the first bus and the second bus via the power receiving disconnector and the second disconnector, and the first bus and the above via the first load equipment disconnector and the second load equipment disconnector. A design information acquisition step for acquiring design information of the power receiving and distributing equipment in which the load equipment connectable to the second bus is arranged on the first bus and the second bus, and the first power receiving disconnector and the first disconnector. 2 When the power receiving disconnector, the first load equipment disconnector, and the second load equipment disconnector are turned on and off, all routes that can supply power to each load equipment from each power source are extracted. Of the routes extracted in the all route extraction step and the all route extraction step, both the first power receiving disconnector and the second power receiving disconnector are turned on, and the power supply is the first bus and the first bus. Both the route when connected to both of the two bus wires and the first load equipment disconnector and the second load equipment disconnector are turned on, and the load equipment is both the first bus and the second bus. The calculation target route specifying process for specifying the calculation target route and the calculation target, in which the route when connected to is an irregular route and the irregular route is excluded from the route extracted in the all route extraction step. The known reliability of the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, the second load equipment disconnector, and the electric equipment arranged along the route. Based on the calculation process for calculating at least one of the operating rate and the disconnecting rate for each of the load facilities, and the electrical equipment, the power supply, or the load based on the operating rate or the disconnecting rate. The equipment includes an arrangement design process for performing an arrangement design with the double bus structure.

Further, the configuration / distribution design device for the power receiving / distribution equipment of the present invention is the configuration / layout design device for the power receiving / distribution equipment having a double bus structure in which the first bus and the second bus are connected by a bus connecting line. A power supply that can be connected to the first bus and the second bus via the first disconnector and the second disconnector, and the first bus via the first load equipment disconnector and the second load equipment disconnector. And the design information acquisition unit for acquiring the design information of the power receiving and distributing equipment in which the load equipment connectable to the second bus is arranged on the first bus and the second bus, and the first power receiving disconnector. When the second power receiving disconnector, the first load equipment disconnector, and the second load equipment disconnector are turned on and off, all routes that can supply power from each power source to each load equipment are provided. Of the routes extracted by the all route extraction unit and the all route extraction unit, both the first power receiving disconnector and the second power receiving disconnector are turned on, and the power supply is the first bus and the first bus. Both the route when connected to both of the second bus and the first load equipment disconnector and the second load equipment disconnector are turned on, and the load equipment is the first bus and the second bus. The calculation target route specifying unit for specifying the calculation target route, which excludes the irregular route from the routes extracted by the all route extraction unit, with the route when connected to both of the above as an irregular route, and the above Known reliability of the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, the second load equipment disconnector, and the electric equipment arranged along the calculation target route. Each of the load facilities is provided with a calculation unit that calculates at least one of the operating rate and the disconnecting rate based on the degree, and the designer is provided with the operating rate or the disconnecting rate based on the disconnecting rate. , The electric device, the power source, or the load facility is to be arranged and designed in the double bus structure.

According to the present invention, when calculating the operating rate and / or the non-operating rate for each load equipment, the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, and the second load equipment disconnector are used. Since the number of calculation formula terms can be significantly reduced by taking advantage of the operational characteristics, the operating rate and / or the non-operating rate of each load facility can be easily obtained. By designing the configuration arrangement of the power receiving and distributing equipment based on such an operating rate and / or the non-operating rate, it is possible to centrally determine the arrangement position of the electric equipment, the power supply and the load equipment of the power receiving and distributing equipment. ..

It is a schematic diagram which showed an example of the structure of the power receiving and distribution equipment, and the flow of the accident current when an accident occurred at a predetermined position. It is a schematic diagram when the bus connection circuit breaker is turned off. It is a schematic diagram at the time of turning off the power receiving circuit breaker arranged between a power source and a 1st bus. It is a schematic diagram when both the 1st load equipment disconnector and the 2nd load equipment disconnector connected to a predetermined load equipment are turned on. It is a schematic diagram when the load equipment connected to the 1st bus is connected to the 2nd bus. It is a block diagram which shows the whole structure of the structure arrangement design apparatus of this invention. It is a schematic diagram which showed an example of the design information of the power receiving and distribution equipment designed by the configuration arrangement design apparatus by this invention. It is a schematic diagram when the design information of FIG. 7 is modified based on the operating rate calculated by the configuration arrangement design apparatus. It is a flowchart which shows the composition arrangement design process. It is a schematic diagram for explaining the number of routes in normal operation, FIG. 10A is a schematic diagram of a route from one power source to a load facility (1), and FIG. 10B is a schematic diagram of a route from one power source to a load facility. (2), FIG. 10C shows a schematic diagram (3) of the route from one power supply to the load equipment, and FIG. 10D shows a schematic diagram (4) of the route from one power supply to the load equipment. It is a schematic diagram for explaining the number of routes in normal operation, FIG. 11A is a schematic diagram of a route from another power source to a load facility (1), and FIG. 11B is a schematic diagram of a route from another power source to a load facility. (2), FIG. 11C shows a schematic diagram (3) of a route from another power source to the load equipment, and FIG. 11D shows a schematic diagram (4) of a route from another power source to the load equipment. It is a schematic diagram for explaining the number of routes considering the time of bus switching operation, FIG. 12A is a schematic diagram of an irregular route from one power source to load equipment (1), and FIG. 12B is a schematic diagram from one power source to load equipment. Schematic diagram of the irregular route (2), FIG. 12C is a schematic diagram of the irregular route from one power supply to the load equipment (3), and FIG. 12D is a schematic diagram of the irregular route from one power supply to the load equipment (1). 4), FIG. 12E is a schematic diagram of an irregular route from one power source to load equipment (5), FIG. 12F is a schematic diagram of an irregular route from one power source to load equipment (6), and FIG. 12G is one. Schematic diagram (7) of the irregular route from the power supply to the load equipment, FIG. 12H shows the schematic diagram (8) of the irregular route from one power supply to the load equipment. It is a schematic diagram for explaining the number of routes considering the time of bus switching operation, FIG. 13A is a schematic diagram of an irregular route from another power source to load equipment (1), and FIG. 13B is a schematic diagram from another power source to load equipment. Schematic diagram of the irregular route (2), FIG. 13C is a schematic diagram of the irregular route from another power source to the load equipment (3), and FIG. 13D is a schematic diagram of the irregular route from the other power source to the load equipment. 4), FIG. 13E shows a schematic diagram (5) of an irregular route from another power source to the load equipment, and FIG. 13F shows a schematic diagram (6) of an irregular route from another power source to the load equipment.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In the following description, similar elements are designated by the same reference numerals, and duplicate description will be omitted.

<Regarding the power receiving and distribution equipment with a double bus structure to be designed>
First, a power receiving / distributing facility 1 having a general double-bus structure, which is designed by the configuration / arrangement design device of the present invention, will be described. FIG. 1 is a schematic view showing an example of the configuration of a power receiving / distributing facility 1 having a double bus structure. The power receiving and distributing equipment 1 has a double bus structure in which the first bus 2a and the second bus 2b are connected by a bus connecting line 3.

The power receiving and distributing equipment 1 supplies the electric power supplied from the power supplies 4a and 4b to the load equipments 5a and 5b via the first bus 2a or the second bus 2b. Note that FIG. 1 describes a case where two power supplies 4a and 4b are provided and two load equipments 5a and 5b are provided. However, three or more power supplies may be provided, and three or more load equipments may be provided. May be. As a specific example of the power sources 4a and 4b, a power source provided in the premises where the power receiving and distributing equipment 1 is placed may be used, or a power source managed by a general electric power company outside the premises may be used.

In this case, in the power receiving and distributing equipment 1, the power supply 4a is connected to the power receiving and distributing circuit breaker 10a, and the other power supply 4b is connected to the other power receiving and distributing circuit breaker 10b. In FIG. 1, load equipment 5a and 5b are arranged between the two power receiving circuit breakers 10a and 10b along the first bus 2a and the second bus 2b, and the bus connecting line 3 is the first bus. It is arranged at the end of the bus 2a and the second bus 2b.

The power supply 4a is connected to the first power receiving disconnector 7a and the second power receiving disconnector 7b via the power receiving disconnector 10a. The power receiving disconnector 10a is turned on to connect the power supply 4a to the first power receiving disconnector 7a and the second power receiving disconnector 7b, and the power from the power supply 4a is supplied to the first power receiving disconnector 7a and the second power receiving disconnector 7a. It is supplied to the disconnector 7b.

On the other hand, the power receiving disconnector 10a is turned off to disconnect the power supply 4a from the first power receiving disconnector 7a and the second power receiving disconnector 7b. As a result, the power receiving disconnector 10a cuts off the power from the power supply 4a so that the power is not supplied to both the first power receiving disconnector 7a and the second power receiving disconnector 7b.

The first power receiving disconnector 7a is arranged between the power receiving disconnector 10a and the first bus 2a. The first power receiving disconnector 7a connects the power receiving disconnector 10a to the first bus 2a by operating on, and disconnects the power receiving disconnector 10a from the first bus 2a by operating off.

The second power receiving disconnector 7b is arranged between the power receiving disconnector 10a and the second bus 2b. The second power receiving disconnector 7b connects the power receiving disconnector 10a to the second bus 2b by operating on, and disconnects the power receiving disconnector 10a from the second bus 2b by operating off.

The first power receiving disconnector 7a and the second power receiving disconnector 7b can be independently turned on or off. Therefore, when the power receiving disconnector 10a is on, the power supply 4a is at least one of the first bus 2a and the second bus 2b by the on / off operation of the first power receiving disconnector 7a and the second power receiving disconnector 7b. Will be connected to.

The other power supply 4b also has the same configuration as the power supply 4a described above, and has the first bus 2a and the second bus via the power receiving disconnector 10b, the first power receiving disconnector 7c, or the second power receiving disconnector 7d. It is connected to 2b. Here, in order to avoid duplication of description, the description of the other power supply 4b will be omitted.

In the case of this embodiment, the power receiving circuit breakers 10a and 10b connected to the power supplies 4a and 4b are turned on during normal operation. Further, during normal operation, the power supplies 4a and 4b are connected to only one of the first bus 2a and the second bus 2b, respectively. For example, in the present embodiment, the first power receiving disconnector 7a is turned on, the second power receiving disconnector 7b is off, and the power supply 4a is connected to the second bus 2b by the second power receiving disconnector 7b. It is disconnected and connected only to the first bus 2a.

Further, in the case of the present embodiment, during normal operation, the other power source 4b is connected to the second bus line 2b to which the power source 4a is not connected. Specifically, the first power receiving disconnector 7c arranged between the power source 4b and the first bus 2a operates off, and the second power receiving disconnector arranged between the other power source 4b and the second bus 2b operates off. The vessel 7d is operating on. As a result, the other power supply 4b is disconnected from the first bus 2a by the first power receiving disconnector 7c, and is connected only to the second bus 2b.

The busbar connecting line 3 is provided with a busbar connecting circuit breaker 12, and by operating on during normal operation, the first busbar 2a and the second busbar 2b are connected. During normal operation, the bus connection circuit breaker 12 is turned on and the first bus 2a and the second bus 2b are connected, so that the first bus 2a and the second bus 2b are supplied with both power sources 4a and 4b. Powered from. The bus-bar contact circuit breaker 12 is operated to remove the accident point T, which will be described later, or to be turned off during inspection work to disconnect the first bus 2a and the second bus 2b.

The load equipment 5a is connected to the first load equipment disconnector 8a and the second load equipment disconnector 8b via the load equipment disconnector 11a. The first load equipment disconnector 8a is arranged between the load equipment disconnector 11a and the first bus 2a, while the second load equipment disconnector 8b is between the load equipment circuit breaker 11a and the second bus 2b. Is located in. The first load equipment disconnector 8a and the second load equipment disconnector 8b can be independently turned on or off. Since the other load equipment 5b side also has the same configuration as the load equipment 5a side described above, the description thereof will be omitted here in order to avoid duplication of description.

During normal operation, the load equipment circuit breakers 11a and 11b connected to the load equipment 5a and 5b are turned on. Further, during normal operation, the load equipment 5a and 5b are connected to only one of the first bus 2a and the second bus 2b, respectively. For example, in the present embodiment, during normal operation, the first load equipment disconnector 8a is turned on and the second load equipment disconnector 8b is off. As a result, one of the load equipment 5a is disconnected from the second bus 2b by the second load equipment disconnector 8b, and is connected only to the first bus 2a by the first load equipment disconnector 8a.

Further, in the case of the present embodiment, the other load equipment 5b is connected to the second bus 2b to which the one load equipment 5a is not connected during normal operation. Specifically, the first load equipment disconnector 8c is off and the second load equipment disconnector 8d is on. As a result, the other load equipment 5b is disconnected from the first bus 2a by the first load equipment disconnector 8c, and is connected only to the second bus 2b by the second load equipment disconnector 8d.

Here, the load equipment 5a and 5b are, for example, factory facilities such as manufacturing equipment (rolling mill, transfer equipment, heating furnace, control device, etc.) operating in the factory, and the first bus 2a and the second bus are the first bus. The necessary power is supplied from the power supplies 4a and 4b via 2b, the bus connecting line 3, and the like.

<Operation to remove accident points in power receiving and distribution equipment>
Here, in the power receiving and distribution equipment 1 having a general double bus structure, for example, when an accident occurs at a predetermined position (accident point T) of the first bus 2a, the removal operation for removing the accident point T is described. The following is a brief explanation. In this case, as shown in FIG. 1, for example, the fault current flows from the power supply 4a to the fault point T via the power receiving circuit breaker 10a and the first power receiving disconnector 7a, and the second power supply 4b also flows. The fault current I ₁ flows toward the fault point T of the first bus 2a via the bus 2b and the bus connecting line 3.

In the power receiving and distribution equipment 1, as an operation of removing the accident point T, first, as shown in FIG. 2, the bus connection circuit breaker 12 is turned off, the connection of the first bus 2a and the second bus 2b is disconnected, and another power source is used. The fault current I1 flowing from the fault point T of the _first bus 2a from 4b is cut off. As a result, the fault current I ₂ flows from only the power supply 4a to the fault point T.

Next, as shown in FIG. 3, the power receiving disconnector 10a connected to the first bus 2a via the first power receiving disconnector 7a is turned off to cut off the accident current I ₂ flowing from the power supply 4a to the accident point T. do. As a result, the power receiving and distributing equipment 1 only stops the load equipment 5a connected to the first bus 2a where the accident point T has occurred, and the load equipment 5b connected to the second bus 2b remains as it is. Normal operation can be maintained.

<About bus switching operation of load equipment>
As described above, during normal operation, the load equipments 5a and 5b are operated by turning on only one of the first load equipment disconnectors 8a and 8c and the second load equipment disconnectors 8b and 8d. It is connected only to either the 1 bus 2a or the 2nd bus 2b. However, when performing maintenance and inspection of the first bus 2a or the second bus 2b, or performing construction work, for example, when both the first load equipment disconnector 8a and the second load equipment disconnector 8b are turned on. There is. Hereinafter, such a case will be described.

For example, when performing maintenance and inspection of the first bus 2a, it is necessary to stop the power supply to the first bus 2a. In this case, as shown in FIG. 4, prior to the stop of the power supply of the first bus 2a, the bus switching operation of connecting the load equipment 5a connected only to the first bus 2a to the second bus 2b is performed. Will be done. In the bus switching operation, first, the bus connecting disconnector 12 is turned on and the first load equipment disconnector 8a is turned on to connect the load equipment 5a to the first bus 2a. The second load equipment disconnector 8b in the off state is turned on, and the load equipment 5a is also connected to the second bus 2b.

In this way, when both the first load equipment disconnector 8a and the second load equipment disconnector 8b are turned on, in addition to the fact that the first bus 2a and the second bus 2b are connected by the bus connecting line 3. The first bus 2a and the second bus 2b are also connected by the first load equipment disconnector 8a and the second load equipment disconnector 8b.

In this case, the power from the power source 4a is supplied to the load equipment 5b connected to the second bus 2b via some routes. For example, as a route for supplying power from the power supply 4a to the load facility 5b, the power receiving disconnector 10a, the first power receiving disconnector 7a, the first bus 2a, the bus connecting line 3, the second bus 2b, and the second load are used as a route for supplying power from the power supply 4a. In addition to the conventional route Ra that supplies power to the load equipment 5b via the equipment disconnector 8d and the load equipment disconnector 11b in sequence, the route goes through the first load equipment disconnector 8a and the second load equipment disconnector 8b. A new route is formed.

For example, as a new power supply route that does not exist during normal operation, as shown in FIG. 4, a power receiving disconnector 10a, a first power receiving disconnector 7a, a first bus 2a, and a load facility 5a are connected from the power supply 4a. A route Rb is formed in which power is supplied to the load equipment 5b via the first load equipment disconnector 8a, the second load equipment disconnector 8b, the second bus 2b, the second load equipment disconnector 8d, and the load equipment circuit breaker 11b. Will be done.

Then, as shown in FIG. 5, with the bus connecting disconnector 12 turned on, both the first load equipment disconnector 8a and the second load equipment disconnector 8b in the load equipment 5a were turned on. After that, the first load equipment disconnector 8a connecting the load equipment 5a to the first bus 2a is turned off. As a result, the connection of the load equipment 5a can be switched from the first bus 2a to the second bus 2b without interrupting the power supply to the load facility 5a.

Regarding the power supplies 4a and 4b, the first power receiving disconnector 7a and 7c and the second power receiving disconnector 7b and 7d are also operated with the bus connecting disconnector 12 turned on according to the procedure of the bus switching operation described above. By turning on both of the above, the connection of the power supplies 4a and 4b can be switched from the first bus 2a to the second bus 2b without interrupting the power supply to the load equipment 5a and 5b.

<About bus switching operation when calculating the operating rate of load equipment>
Here, when designing the power receiving and distributing equipment 1 as shown in FIG. 1, the power receiving and distributing equipment 1 takes into consideration the operating rate of each load equipment 5a and 5b (probability that power can be supplied to the load equipments 5a and 5b). It is desirable to design. At this time, if the operating rate of each load equipment 5a, 5b is strictly considered, other than the normal operation in which only one of the first load equipment disconnector 8a, 8c or the second load equipment disconnector 8b, 8d is turned on. As described above, for example, during the bus switching operation in which both the first load equipment disconnector 8a, 8c and the second load equipment disconnector 8b, 8d are turned on, and the first power receiving disconnector 7a, 7c and the first. 2 It is also necessary to consider the time of the bus switching operation in which both the power receiving disconnectors 7b and 7d are turned on.

However, when designing the arrangement position of each configuration of the load equipment 5a, 5b, the bus connecting line 3, etc. in the power receiving and distribution equipment 1, not only the normal operation but also the bus switching operation, etc. are taken into consideration, and the power source becomes the starting point. If we try to extract all the routes from 4a and 4b to the end point of each load equipment 5a and 5b, the number of routes to be assumed becomes too large.

Therefore, if the operating rate is calculated for each load facility 5a, 5b in consideration of all routes, the calculation process for calculating the operating rate for each load facility 5a, 5b is complicated due to the large number of routes. It will be transformed.

Therefore, in the present embodiment, when calculating the operating rate for each load equipment 5a and 5b, it is examined whether or not the route from the starting point to the ending point can be reduced in order to reduce the calculation processing load.

Here, the time required to perform the bus switching operation in one load facility 5a is about 5 minutes each time based on the past operation data. In addition, the bus switching operation is usually performed once a month. Therefore, when the number of load equipment is, for example, 20, the time ratio that the load equipment is connected to both the first bus 2a and the second bus 2b within one month is (5 minutes x 20). / (1440 minutes x 30 days) = 0.23%.

Therefore, it can be evaluated that the time during which the load equipment is connected to both the first bus 2a and the second bus 2b is an extremely short time in consideration of the total operating time. Therefore, in the configuration layout design device of the present invention, when designing the configuration layout of the power receiving and distribution facility 1 by calculating the operating rate for each load facility 5a and 5b, the bus switching operation is a rare case. When calculating the operating rate of each load equipment 5a, 5b, the route of power supply when both the first load equipment disconnector 8a, 8c and the second load equipment disconnector 8b, 8d are turned on at the same time is an irregular route. Excluded as.

Further, in the power receiving / distributing facility 1 having a double bus structure, only one of the first power receiving disconnectors 7a and 7c or the second power receiving disconnectors 7b and 7d is turned on during normal operation or bus switching operation. The power supplies 4a and 4b are connected only to the first bus 2a or the second bus 2b. Therefore, assuming that the bus switching operation in which both the first power receiving disconnector 7a and 7c and the second power receiving disconnector 7b and 7d are turned on at the same time is an extremely rare case, the operating rate of each load equipment 5a and 5b is calculated. At this time, the power supply route when both the first power receiving disconnector 7a and 7c and the second power receiving disconnector 7b and 7d are turned on at the same time is also excluded as an irregular route.

From the above, in the present embodiment, when calculating the operating rate of each load equipment 5a, 5b, only one of the first load equipment disconnector 8a, 8c or the second load equipment disconnector 8b, 8d is turned on. In addition, it was decided to consider only the route during normal operation in which only one of the first power receiving disconnector 7a, 7c or the second power receiving disconnector 7b, 7d was turned on.

<Structural layout design device of the present invention>
Next, as described above, the configuration layout design device of the present invention, which excludes irregular routes and uses only routes during normal operation to calculate the operating rate of each load facility, will be described below. As shown in FIG. 6, the configuration layout design device 31 of the present invention includes a design information acquisition unit 32a, a design information change unit 32b, an arithmetic processing unit 33, a storage unit 34, and a display unit 35. There is. The design information acquisition unit 32a acquires design information indicating the configuration of the power receiving / distributing equipment for calculating the operating rate of the load equipment, and stores the design information in the storage unit 34.

In this case, the design information of the power receiving / distributing equipment may be created by the designer himself / herself by the design information acquisition unit 32a, or may be acquired from the external memory or the Internet via the design information acquisition unit 32a. ..

Here, FIG. 7 shows an example of the design information of the power receiving / distributing equipment 21 acquired by the design information acquisition unit 32a. The power receiving and distributing equipment 1 shown in FIGS. 1 to 5 mainly shows the power supplies 4a and 4b and the load equipment 5a and 5b in order to explain the basic operation of the double bus structure. , The explanation about the electric equipment such as the transformer was omitted. Actually, as shown in FIG. 7, electric devices such as a transformer 22 with an adjustment function, an instrument transformer (CT) 23, an instrument transformer (PT) 25, and a lightning arrester 24 are arranged at predetermined locations. There is.

Here, the design information of the power receiving and distributing equipment 21 provided with the two power supplies 4a and 4b and the three load equipments 5a, 5b and 5c will be described. As shown in FIG. 7, in the actual power receiving and distributing equipment 21, for example, a transformer 22 with an adjusting function and a current transformer 23 for an instrument are provided between the power supply 4a (4b) and the power receiving circuit breaker 10a (10b). It is provided.

Further, the first bus 2a and the second bus 2b are provided with a lightning arrester 24 and a voltage transformer 25, and the bus connecting line 3 is provided with instrument transformers 23 on both sides of the bus connecting circuit breaker 12. ing. Further, for example, an instrument transformer 23 is provided between the load equipment 5a (5b, 5c) and the load equipment circuit breaker 11a (11b, 11c).

In this way, the design information acquisition unit 32a, together with the power supplies 4a and 4b, has electrical equipment (transformer 22 with adjustment function, transformer for instrument 23, transformer for instrument 25, power receiving disconnector 10a, 10b, disconnector for load equipment). Devices 11a, 11b, 11c, lightning arrester 24, etc.), first power receiving disconnector 7a, 7c, second power receiving disconnector 7b, 7d, load equipment 5a, 5b, 5c, first load equipment disconnector 8a, 8c, 8e , Second load equipment disconnector 8b, 8d, 8f, bus connection line 3, etc. The design information of the power receiving and distributing equipment 21 whose arrangement position is specified is acquired.

The design information acquired by the design information acquisition unit 32a is stored in the storage unit 34. Here, the configuration arrangement design device 31 is provided with an operation unit (not shown), and various operation commands are given to the operation unit by the designer. The configuration layout design device 31 appropriately reads the design information stored in the storage unit 34 in response to various operation commands given from the operation unit, and outputs the design information to the arithmetic processing unit 33, the display unit 35, or the design information change unit 32b.

For example, on the display unit 35, a design drawing of the power receiving and distribution equipment 21 as shown in FIG. 7 read from the storage unit 34 is displayed as design information. This allows the designer to confirm the configuration of the power receiving and distribution equipment 21.

When the arithmetic processing unit 33 receives the design information (FIG. 7) read from the storage unit 34, the arithmetic processing unit 33 receives the first power receiving disconnector 7a, 7c, the second power receiving disconnector 7b, 7d, and the first load in the design information. Considering the operational characteristics of the equipment disconnectors 8a, 8c, 8e and the second load equipment disconnectors 8b, 8d, 8f, the arithmetic processing to which the path method is applied is executed, and the operating rates of the respective load equipments 5a, 5b, 5c are executed. Is calculated.

Here, the arithmetic processing unit 33 includes an all-route extraction unit 33a, an irregular route specifying unit 33b, a calculation target route specifying unit 33c, and a calculation unit 33d. In the case of this embodiment, the operating rate is obtained for each of the load equipments 5a, 5b, and 5c by using the pass method applied to communication engineering. Here, in order to avoid duplication of explanation, the method of calculating the operating rate using the pass method will be described below, focusing mainly on one of the load equipment 5a, 5b, and 5c.

When the all route extraction unit 33a acquires the design information of the power receiving and distributing equipment 21 from the storage unit 34, as the first step of the path method, the power supply 4a is included in the configuration of the power receiving and distributing equipment 21 specified in the acquired design information. , 4b extracts all routes capable of supplying power to the load equipment 5a (5b, 5c).

In this case, the power supplies 4a and 4b are the starting points, and the load equipment 5a (5b, 5c) is the ending point. Then, the all route extraction unit 33a is when both the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d are turned on, and when the first power receiving disconnector 7a, 7c and the second power receiving disconnector are turned on. When only one of 7b and 7d is turned on, and when both the first load equipment disconnector 8a, 8c, 8e and the second load equipment disconnector 8b, 8d, 8f are turned on, the first When only one of the 1 load equipment disconnector 8a, 8c, 8e and the 2nd load equipment disconnector 8b, 8d, 8f is turned on, the load equipment which is the end point from the power supply 4a which is one of the starting points. All power supply routes up to 5a (5b, 5c) are extracted.

Similarly, for the other power source 4b as the starting point, when both the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d are turned on, and when the first power receiving disconnector 7a, When only one of the 7c and the second power receiving disconnector 7b, 7d is turned on, and both the first load equipment disconnector 8a, 8c, 8e and the second load equipment disconnector 8b, 8d, 8f are turned on. The load that is the end point from the power supply 4b when it is operated and when only one of the first load equipment disconnector 8a, 8c, 8e and the second load equipment disconnector 8b, 8d, 8f is turned on. All routes that can supply power to the equipment 5a (5b, 5c) are extracted.

When all routes from the start point to the end point are extracted with the power supplies 4a and 4b as the starting points and the load equipment 5a (5b, 5c) as the ending points, the all route extraction unit 33a uses these as the irregular route specifying unit 33b. Output to. The irregular route specifying unit 33b is a load when both the first power receiving disconnector 7a and 7c and the second power receiving disconnector 7b and 7d are turned on from all the routes as the second step of the path method. The route of power supply to the equipment 5a and the power supply to the load equipment 5a when both the first load equipment disconnectors 8a, 8c, 8e and the second load equipment disconnectors 8b, 8d, 8f are turned on. The route is specified as an irregular route during the bus switching operation.

The calculation target route specifying unit 33c receives all routes capable of supplying electric power to the load equipment 5a (5b, 5c) from the all route extraction unit 33a, and irregular routes specified from these routes are irregular. Received from the route identification unit 33b. As the third step of the pass method, the calculation target route specifying unit 33c considers that the irregular route is a rare case during the bus switching operation, and identifies the route as a route capable of supplying power to the load equipment 5a (5b, 5c). Exclude irregular routes from the list and specify the remaining routes as calculation target routes.

The calculation target route identified in this way is when only one of the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d is turned on, and the first load equipment disconnector 8a, Power can be supplied from the power supplies 4a and 4b to the load equipment 5a (5b, 5c) when only one of the 8c and 8e and the second load equipment disconnector 8b, 8d and 8f is turned on. Show the route.

When the calculation target route specifying unit 33c specifies all the calculation target routes from the power sources 4a and 4b as the starting point to the load equipment 5a (5b, 5c) as the ending point, the calculation unit 33d and the display unit 35 obtain the results. Output to. The display unit 35 supplies power from the power supplies 4a and 4b to the load equipment 5a (5b, 5c), including the time of the bus switching operation, on the design information of the power receiving and distribution equipment 21 displayed on the display unit 35, for example. It is also possible to display all the routes to be performed, the irregular routes during the bus switching operation, and the calculation target routes as appropriate, and have the designer visually confirm these.

Here, in the storage unit 34, each electric device (for example, a transformer 22 with an adjustment function, a current transformer 23 for an instrument, and a power receiving disconnector) in the design information of the power receiving and distributing equipment 21 as shown in FIG. 10a, 10b, load equipment disconnector 11a, 11b, 11c, bus connection disconnector 12, lightning arrester 24, etc.), first power receiving disconnector 7a, 7c, second power receiving disconnector 7b, 7d, first load equipment disconnector 8a , 8c, 8e, and the known reliability rates of the second load equipment disconnectors 8b, 8d, 8f are stored in advance as reliability rate information.

Electric equipment, first power receiving disconnector 7a, 7c, second power receiving disconnector 7b, 7d, first load equipment disconnector 8a, 8c, 8e, second load equipment disconnector 8b, 8d, 8f, etc. For the reliability rate of various parts and devices in the equipment, the contents publicly disclosed by the parts manufacturers and the like may be applied.

In this case, the calculation unit 33d reads the reliability rate information from the storage unit 34. Then, as the fourth step of the pass method, the calculation unit 33d uses the calculation target route from each power supply 4a, 4b to the load equipment 5a (5b, 5c) and the reliability rate information, and the load equipment 5a (5b, 5b, Calculate the operating rate of 5c).

Specifically, the operating rate of the load equipment 5a (5b, 5c) is calculated as follows. First, each electric device (transformer 22 with adjustment function, current transformer 23 for instrument, lightning arrester 24, etc.) on each calculation target route that can supply power to the load equipment 5a (5b, 5c), the first power receiving The disconnectors 7a, 7c, the second power receiving disconnectors 7b, 7d, the first load equipment disconnectors 8a, 8c, 8e, and the second load equipment disconnectors 8b, 8d, 8f are specified.

The calculation unit 33d is an electric device specified along each calculation target route, a first power receiving disconnector 7a, 7c, a second power receiving disconnector 7b, 7d, a first load equipment disconnector 8a, 8c, 8e, a second load. The known reliability of the equipment disconnectors 8b, 8d, and 8f is specified from the reliability information, and the total operation rate is calculated by multiplying all the specified reliabilitys. The calculation unit 33d uses the total operating rate considering the existence of all the calculation target routes thus obtained as the operating rate of the load equipment 5a (5b, 5c) in the acquired design information.

In addition, in the calculation method based on "availability by serial / parallel calculation" (for example, Internet "beginner sysadmin course utilization rate" (http://www.pursue.ne.jp/jouhousyo/sysad/sysad0061.htm)), the first Although it is difficult to deal with the double bus structure in which the 1 bus 2a and the 2nd bus 2b are connected by the bus connecting line 3, the operating rate is excluded from the calculation target route excluding the irregular route during the bus switching operation. By using the path method for finding, the operating rate can be found even with a double bus structure.

In particular, in the case of this embodiment, since the bus switching operation is excluded as a rare case and only the state during normal operation is focused on, the total number of routes can be significantly reduced. Therefore, the load equipment 5a When calculating the operating rate of (5b, 5c), it is possible to avoid complicated arithmetic processing.

In this way, the calculation unit 33d calculates the operating rate for each of the load equipments 5a, 5b, and 5c by using the pass method, and outputs each calculation result to the display unit 35. The display unit 35 displays the operating rate of each load facility 5a, 5b, 5c received from the calculation unit 33d, and presents the operating rate to the designer.

Thereby, the designer can confirm the operating rate of each load facility 5a, 5b, 5c at the time of the design information of the power receiving / distributing facility 21 as shown in FIG. Here, the operating rates of the obtained load facilities 5a, 5b, and 5c may not satisfy the operating rates desired by the designer. In such a case, the designer reconsiders the design information of the power receiving / distributing equipment 21, and for example, as shown in FIG. 8, the designer obtains the design information of the new power receiving / distributing equipment 41 in which the arrangement positions of the power supplies 4a and 4b are changed. To make.

When changing the content of the design information of the power receiving and distributing equipment 21 shown in FIG. 7, for example, the design information changing unit 32b shown in FIG. 6 reads the design information of FIG. 7 from the storage unit 34. The design information changing unit 32b is, for example, based on the design information of the power receiving and distributing equipment 21 displayed on the display unit 35, and based on the change command given by the designer, the power supplies 4a, 4b and the like in the power receiving and distributing equipment 21. By changing the arrangement position, for example, design information of a new power receiving / distributing facility 41 as shown in FIG. 8 is created, and this is stored in the storage unit 34.

Then, the design information of the power receiving and distributing equipment 41 modified in this way is displayed on the display unit 35, or the operation rate of each load equipment 5a, 5b, 5c is calculated again in the arithmetic processing unit 33. .. As a result, as shown in FIG. 8, when the designer moves the arrangement position of the power supplies 4a and 4b between the load equipment 5a and the load equipment 5b, how much each load equipment 5a, 5b, 5c is. You can check if the operating rate is reached.

The designer repeatedly modifies the design information of the power receiving and distributing equipment and calculates the operating rate of each load equipment 5a, 5b, 5c based on the modified design information, so that each load equipment can be modified. It is possible to design a power receiving and distributing facility in which the operating rates of 5a, 5b, and 5c are desired values.

<Structure layout design processing of power receiving and distribution equipment>
Next, the above-mentioned configuration / layout design process executed by the configuration / layout design device 31 of the present invention will be described below with reference to the flowchart of FIG. As shown in FIG. 9, the configuration arrangement design device 31 moves from the start step to step S1. In step S1, the design information acquisition unit 32a acquires, for example, the design information of the power receiving and distributing equipment 21 as shown in FIG. 7, and moves to the next step S2.

In step S2, the all route extraction unit 33a supplies power from the start point to the end point for each load facility 5a, 5b, 5c with the power supplies 4a, 4b as the starting point and the load facilities 5a, 5b, 5c as the ending points. All of the routes of are extracted, and the process proceeds to the next step S3.

In step S3, the irregular route specifying unit 33b includes the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d from all the routes specified in step S2 for each load equipment 5a, 5b, 5c. Power supply route when both of the disconnectors 8a, 8c, 8e and the second load equipment disconnector 8b, 8d, 8f are turned on at the same time. The route is specified as an irregular route, and the process proceeds to the next step S4.

In step S4, the calculation target route specifying unit 33c considers that the irregular route specified in step S3 is a rare case during the bus switching operation, and all routes specified in step S2 for each load equipment 5a, 5b, 5c. The irregular route is excluded from the above, the calculation target route is specified for each load equipment 5a, 5b, 5c, and the process proceeds to the next step S5.

In step S5, the calculation unit 33d has, for example, the first power receiving disconnector 7a, 7c, the second power receiving disconnector 7b, on the calculation target route specified with the power supply 4a, 4b as the starting point and the load equipment 5a as the ending point. 7d, 1st load equipment disconnector 8a, 8c, 8e, 2nd load equipment disconnector 8b, 8d, 8f and known electrical equipment (bus disconnector 12, instrument current transformer 23, lightning arrester 24) Multiply all the reliability rates to calculate the total operating rate of the route to be calculated, and use this as the operating rate of the load facility 5a. In step S5, when the operation rate is calculated for each load equipment 5a, 5b, 5c by the calculation unit 33d, the process proceeds to the next step S6.

In step S6, the display unit 35 presents the designer with the design information of the power receiving and distributing equipment 21 and the operating rates of the load equipments 5a, 5b, and 5c obtained in step S5, and in the next step S7. Move.

In step S7, the configuration layout design device 31 determines whether or not the content of the design information of the power receiving and distributing equipment 21 currently presented has been changed by the design information changing unit 32b. Here, if a negative result is obtained, this means that the design information of the power receiving and distributing equipment 21 currently presented has not been changed by the designer, that is, the design information of the power receiving and distributing equipment 21 currently presented. If this is the case, it indicates that the desired operating rate is obtained in each of the load facilities 5a, 5b, and 5c, and at this time, the configuration layout design device 31 ends the configuration layout design process.

On the other hand, when an affirmative result is obtained, this means that the design information of the power receiving and distributing equipment 21 currently presented has been changed by the designer, that is, the design of the power receiving and distributing equipment 21 currently presented. The information indicates that the desired operating rate is not obtained in each of the load facilities 5a, 5b, and 5c, and at this time, the configuration layout design device 31 returns to step S2 again.

Then, the above-mentioned steps S2 to S6 are repeated until a negative result is obtained in step S7, and the operating rates of the load facilities 5a, 5b, and 5c are calculated each time the design information of the power receiving and distributing equipment is changed. Present to the designer.

<Action and effect>
As described above, in the present embodiment, first, electrical equipment (for example, a transformer 22 with an adjustment function, a current transformer 23 for an instrument, a power receiving disconnector 10a, 10b, a load equipment disconnector 11a, 11b, 11c, a bus disconnector is cut off. Device 12, lightning arrester 24, etc.), first power receiving disconnector 7a, 7c, second power receiving disconnector 7b, 7d, first load equipment disconnector 8a, 8c, 8e, second load equipment disconnector 8b, Acquires design information of the power receiving and distributing equipment 21 in which 8d, 8f, power supplies 4a, 4b, and load equipment 5a, b, 5c are arranged on the first bus 2a and the second bus 2b (design information acquisition process). ..

When the first power receiving disconnector 7a, 7c, the second power receiving disconnector 7b, 7d, the first load equipment disconnector 8a, 8c, 8e and the second load equipment disconnector 8b, 8d, 8f are operated on and off, respectively. The power supply routes from the power supplies 4a and 4b are all extracted for each load equipment 5a, 5b and 5c, with the power supplies 4a and 4b as the starting point and the load equipments 5a, 5b and 5c as the ending points. All route extraction process).

Next, the route when both the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d are turned on at the same time, and the first load equipment disconnector 8a, 8c, 8e and the second load equipment disconnector 8b, The route when both 8d and 8f are turned on at the same time is regarded as a rare case during the bus switching operation, and these routes are specified as irregular routes for each load equipment 5a, 5b, 5c (irregular routes). Specific process).

Then, the irregular route was excluded from the routes extracted in the all route extraction process for each load equipment 5a, 5b, 5c, and the calculation target route was specified for each load equipment 5a, 5b, 5c (calculation target route). Specific process).

As a result, the first power receiving disconnector 7a, 7c, the second power receiving disconnector 7b, 7d, the first load equipment disconnector 8a, 8c, 8e, and the second load equipment disconnector arranged along the calculation target route. The operating rates of the load equipments 5a, 5b, and 5c can be calculated based on the known reliability of the 8b, 8d, 8f, and the electrical equipment (calculation step). Therefore, the designer can design the arrangement of the bus connecting line 3, the electric equipment, the power supplies 4a, 4b, or the load equipment 5a, 5b, 5c with the double bus structure, using the calculated operating rate as a guide. (Arrangement design process).

Conventionally, when both the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d are turned on, or the first load equipment disconnector 8a, 8c, 8e and the second load equipment disconnector 8b, 8d, All routes from the starting point to the ending point were extracted, including the case where both 8f were turned on, and the operating rates of the load equipments 5a, 5b, and 5c were calculated. Therefore, when calculating the operating rate, the operating rate calculation becomes complicated due to the increase in the number of routes (the number of terms in the operating rate calculation formula is 2 ^{((number of routes) -1)} ), so for example, with general-purpose software such as Excel. It was difficult to calculate, and a special arithmetic processing device was used.

On the other hand, in the present invention, an irregular route when both the first power receiving disconnector 7a, 7c and the second power receiving disconnector 7b, 7d are turned on at the same time and the first load equipment disconnector 8a, 8c, 8e And the irregular route when both the second load equipment disconnectors 8b, 8d, and 8f were turned on at the same time were excluded as a rare case during the bus switching operation. That is, during normal operation, only one of the first power receiving disconnector 7a, 7c or the second power receiving disconnector 7b, 7d is turned on, and the first load equipment disconnector 8a, 8c, 8e or the second load equipment is turned on. A route used to calculate the operating rate for each load equipment 5a, 5b, 5c by utilizing the operational characteristics of the power receiving and distribution equipment during normal operation that only one of the disconnectors 8b, 8d, and 8f is turned on. The number can be significantly reduced.

In this way, by utilizing the operational characteristics of the power receiving and distribution equipment during normal operation and significantly reducing the number of routes when calculating the operating rate, even with general-purpose software such as Excel, each load equipment 5a, 5b, 5c The number of calculation formula terms can be significantly reduced to the extent that the operating rate can be calculated, and the operating rate of each load facility 5a, 5b, 5c can be easily obtained.

Then, based on the obtained operating rates of the load equipments 5a, 5b, 5c, the positions of the power supplies 4a, 4b, the positions of the load equipments 5a, 5b, 5c, the positions of the bus connecting lines 3, etc. are changed. Therefore, it is possible to design a power receiving and distributing facility in which a power failure is unlikely to occur in the load facilities 5a, 5b, and 5c. In addition, by changing the configuration of the power receiving and distribution equipment and calculating the operating rate of each load facility 5a, 5b, 5c each time, the operating rate of each load facility 5a, 5b, 5c can be increased on average. It is also possible to study a configuration that can eliminate the variation in the operating rate of each load facility 5a, 5b, 5c.

According to the above configuration, when the operating rate is calculated for each load equipment 5a, 5b, 5c, the number of calculation formula terms can be significantly reduced, so that the operating rate of each load equipment 5a, 5b, 5c can be easily reduced. Can be asked for. By designing the configuration layout of the power receiving and distribution equipment based on such an operating rate, the placement positions of the electrical equipment, power supplies 4a, 4b and load equipment 5a, 5b, 5c of the power receiving and distribution equipment can be centrally determined. Can be done.

<Other embodiments>
The present invention is not limited to the present embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the above-described embodiment, the case where the operating rate of each load facility 5a, 5b, 5c is calculated has been described, but the present invention is not limited to this, and each load facility 5a, 5b, 5c is not available. The operating rate may be calculated, or both the operating rate and the non-operating rate may be calculated. The non-operation rate can be obtained from, for example, "1-operation rate".

Further, in the above-described embodiment, the case where one power supply 4a and one 4b are provided on the first bus 2a and the second bus 2b has been described, but the present invention is not limited to this, and the first bus 2a and the first bus 2a and A plurality of power supplies may be provided on the second bus 2b.

Further, in the above-described embodiment, the case where one bus connecting line 3 is provided has been described, but the present invention is not limited to this, and two or more bus connecting lines 3 may be provided.

Further, in the above-described embodiment, the case where the irregular route is specified and then the irregular route is excluded from all the routes to specify the calculation target route is described, but the present invention is not limited to this. For example, the route when either the first power receiving disconnector or the second power receiving disconnector is turned on without specifying an irregular route, and either the first load equipment disconnector or the second load equipment disconnector. By specifying the route when the switch is turned on, the calculation target route excluding the irregular route from all the routes may be specified.

<Example of route reduction effect>
Next, the route when only one of the first power receiving disconnector and the second power receiving disconnector is turned on and only one of the first load equipment disconnector and the second load equipment disconnector is turned on. Confirmed the reduction effect of. Here, as shown in FIG. 10A, two power supplies 4a and 4b, one load facility 5a, and one bus connecting line 3 are provided, and one end of the first bus 2a and the second bus 2b is provided. The power receiving and distributing equipment 1a connected by the bus connecting line 3 was applied.

The power supply 4a (4b) was connected to the first bus 2a or the second bus 2b via the first power receiving disconnector 7a (7c) or the second power receiving disconnector 7b (7d). The load equipment 5a was connected to the first bus 2a or the second bus 2b via the first load equipment disconnector 8a or the second load equipment disconnector 8b. Then, the number of routes that can supply electric power from the power sources 4a and 4b to the load equipment 5a was confirmed.

First, only one of the first power receiving disconnector 7a (7c) and the second power receiving disconnector 7b (7d) is turned on, and only one of the power supplies 4a and 4b is connected to the first bus 2a. And, the other remaining power supplies 4a and 4b were connected to the second bus 2b, and the number of routes during normal operation was confirmed. During normal operation, the load equipment 5a turns on only one of the first load equipment disconnector 8a and the second load equipment disconnector 8b, and turns on only one of the first bus 2a and the second bus 2b. Connected.

As shown in FIGS. 10A to 10D and FIGS. 11A to 11D, the routes during normal operation were _eight routes _R1 to R8. In addition, when the number of load equipment was increased and the number of routes during normal operation was confirmed, the number of routes was always 8 no matter how many load equipments were used.

Next, as a comparative example, using the same power receiving and distribution equipment 1a, the power supplies 4a and 4b and the load equipment 5a are connected to both the first bus 2a and the second bus 2b, and the power supplies 4a and 4b are connected to the load equipment 5a. We confirmed the number of routes that can be supplied with power. As _a result, ₁₄ routes of routes A1 to A14 as shown in FIGS. 12A to 12H and 13A to 13F were confirmed. In this way, when the power supplies 4a and 4b and the load equipment 5a are connected to both the first bus 2a and the second bus 2b, the number of routes increases, and the number of calculation formula terms also increases accordingly.

As a result of investigating the case where two or three load equipments were installed, the number of routes was 24 when the load equipments were two, and the number of routes was 40 when the load equipments were three. .. When the load equipment was n units, the number of routes was as follows.

3 × 2 ⁿ + 4n + 4 (n ≧ 2)… (1)

From the above, by using the operational characteristics of the power receiving and distribution equipment during normal operation, which connects the power supply and load equipment only to either the first bus or the second bus, two power supplies and one bus connection line are used. It was confirmed that the number of routes from the start point to the end point in one case can be reduced to eight routes. Therefore, since the number of routes to the load equipment can be reduced, the calculation processing load when calculating the operation rate and / or the non-operation rate of the load equipment can be reduced. It was confirmed that the number of routes can be reduced even if the number of power supplies and the number of bus connection lines increase.

1,1a, 21,41 Power receiving and distributing equipment 2a 1st bus 2b 2nd bus 3 Bus connecting line 4a, 4b Power supply 5a, 5b, 5c Load equipment 7a, 7c 1st power receiving disconnector 7b, 7d 2nd power receiving disconnector 8a , 8c, 8e 1st load equipment disconnector 8b, 8d, 8f 2nd load equipment disconnector 22 Transformer with adjustment function (electrical equipment, transformer)
23 Instrument transformers (electrical equipment, current transformers)
24 Lightning arrester (electrical equipment)
10a, 10b Power receiving circuit breaker (electrical equipment, circuit breaker)
11a, 11b Load equipment circuit breaker (electrical equipment, circuit breaker)
12 Busbar connection circuit breaker (electrical equipment, circuit breaker)
32a Design information acquisition unit 32b Design information change unit 33a All route extraction unit 33b Irregular route specification unit 33c Calculation target route specification unit 33d Calculation unit

Claims (4)

In the configuration layout design method of power receiving and distribution equipment consisting of a double bus structure in which the first bus and the second bus are connected by a bus connecting line,
A power source that can be connected to the first bus and the second bus via an electric device, a first power receiving disconnector and a second power receiving disconnector, and the above via a first load equipment disconnector and a second load equipment disconnector. A design information acquisition process for acquiring design information of the power receiving and distributing equipment in which the first bus and the load equipment connectable to the second bus are arranged on the first bus and the second bus.
When the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, and the second load equipment disconnector are turned on and off, power is supplied from each power source to each load equipment. All route extraction process to extract all possible routes and
Of the routes extracted in the entire route extraction step, both the first power receiving disconnector and the second power receiving disconnector are turned on and the power supply is connected to both the first bus and the second bus. When both the first load equipment disconnector and the second load equipment disconnector are turned on and the load equipment is connected to both the first bus and the second bus. A calculation target route specifying process for specifying a calculation target route, in which the route is an irregular route and the irregular route is excluded from the route extracted in the all route extraction step.
Known in the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, the second load equipment disconnector, and the electric equipment arranged along the calculation target route. A calculation process for calculating at least one of the operating rate and the non-operating rate for each of the load facilities based on the reliability.
A layout design process for designing the layout of the electrical equipment, the power supply, or the load equipment in the double bus structure based on the operating rate or the non-operating rate.
A method for designing the configuration and layout of power receiving and distribution equipment. The method for designing the configuration and arrangement of power receiving and distributing equipment according to claim 1, wherein the electric device is any one of a transformer, a circuit breaker, a current transformer, and a lightning arrester. In the configuration layout design device of the power receiving and distribution equipment having a double bus structure in which the first bus and the second bus are connected by a bus connecting line.
A power source that can be connected to the first bus and the second bus via an electric device, a first power receiving disconnector and a second power receiving disconnector, and the above via a first load equipment disconnector and a second load equipment disconnector. A design information acquisition unit for acquiring design information of the power receiving and distributing equipment in which the first bus and the load equipment connectable to the second bus are arranged on the first bus and the second bus.
When the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, and the second load equipment disconnector are turned on and off, power is supplied from each power source to each load equipment. All route extraction unit that extracts all possible routes, and
Of the routes extracted by the all route extraction unit, both the first power receiving disconnector and the second power receiving disconnector are turned on and the power supply is connected to both the first bus and the second bus. When both the first load equipment disconnector and the second load equipment disconnector are turned on and the load equipment is connected to both the first bus and the second bus. A calculation target route specifying unit that specifies a calculation target route, in which the route is an irregular route and the irregular route is excluded from the route extracted by the all route extraction unit.
Known in the first power receiving disconnector, the second power receiving disconnector, the first load equipment disconnector, the second load equipment disconnector, and the electric equipment arranged along the calculation target route. Each of the load facilities is provided with a calculation unit that calculates at least one of the operating rate and the non-operating rate based on the reliability.
Configuration layout design of power receiving and distribution equipment that allows the designer to design the layout of the electrical equipment, the power supply, or the load equipment in the double bus structure based on the operating rate or the non-operating rate. Device. A display unit that displays the operating rate or the non-operating rate calculated by the calculation unit, and
A design information changing unit that causes the designer to change the arrangement position of the electric device, the power supply, or the load facility in the double bus structure.
3. The configuration / arrangement design device for power receiving / distributing equipment according to claim 3.

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