JP2022056972A - Power control system, apparatus, and information processing device - Google Patents

Abstract

To make it less likely to cause influence of a state of an electric wire on a power supply side rather than a power distribution transformer relative to adjustment of apparent power on a supply side electric wire rather than the power distribution transformer compared with a case where the apparent power on the supply side electric wire is adjusted without supplying a current to the electric wire on the power supply side rather than the power distribution transformer.SOLUTION: A power control system includes: an apparatus for receiving electric power from an electric wire of a distribution system via a distribution transformer; acquisition means for acquiring electric wire information related to the electric wire; and control means for causing the apparatus to generate a current used for adjusting apparent power in the electric wire based on the electric wire information acquired by the acquisition means.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to power control systems, devices and information processing devices.

In Patent Document 1, the power factor adjusting means is configured to be sequentially operated for each distribution transformer by receiving a control command signal to perform phase adjustment control, and to consume and reduce the reactive power of the distribution line. A reactive power adjustment system for distribution lines is described.

Japanese Unexamined Patent Publication No. 2012-105488

By supplying current to the electric wire provided on the power receiving side of the distribution transformer, the apparent power of the electric wire provided on the power supply side of the distribution transformer may be adjusted. However, in this case, depending on the state of the electric power receiving side of the distribution transformer, the apparent power of the electric power supply side of the distribution transformer may not be improved.
In the present disclosure, the electric wire on the power supply side of the distribution transformer is compared with the case where the apparent power in the electric wire on the supply side is adjusted without supplying the current to the electric wire on the power supply side of the distribution transformer. The purpose is to make the influence of the state on the electric wire on the receiving side of the electric power less likely to occur on the adjustment of the apparent electric power in the above.

The electric power control system of the present disclosure includes a device that receives electric power from an electric wire of a distribution system via a distribution transformer, an acquisition means for acquiring electric wire information related to the electric wire, and the electric wire information acquired by the acquisition means. Based on this, it is a power control system including a control means for causing the device to generate a current used for adjusting the apparent power in the electric wire. In this case, in the electric wire on the power supply side rather than the distribution transformer, compared to the case where the apparent power in the electric wire on the supply side is adjusted without supplying the current to the electric wire on the power supply side than the distribution transformer. It is possible to reduce the influence of the state of the electric wire on the receiving side of the electric power on the adjustment of the apparent electric power as compared with the transformer for distribution.
Here, the device can adjust the apparent power in the own device, and the control means has the apparent power in the device when the device generates a current used for adjusting the apparent power in the electric wire. Adjustment by the device may be restricted. In this case, it is possible to prevent insufficient adjustment of the apparent power in the electric wire as compared with the case where the adjustment of the apparent power in the device is unconditionally performed by the device.
Further, the acquisition means may acquire capacity information regarding the capacity of the electric wire, and the control means may limit the capacity based on the capacity information. In this case, it is possible to suppress the occurrence of a short circuit or ignition in the electric wire as compared with the case where the apparent power in the device is adjusted regardless of the capacity of the electric wire.
Further, the acquisition means may acquire the ability information regarding the ability of the device to generate an electric current, and the control means may make the limitation based on the ability information. In this case, it is possible to suppress the occurrence of a malfunction in the device as compared with the case where the apparent power in the device is adjusted regardless of the ability of the device to generate an electric current.
Further, the control means may cause the device to generate a current larger than the current required for improving the apparent power in the electric wire. In this case, the adjustment of the apparent power in the electric wire becomes insufficient due to the change in the apparent electric power in the electric wire, as compared with the case where the current generated in the device is less than the amount required for improving the apparent electric power in the electric wire. Can be suppressed.
Further, the control means may cause the device to generate a current larger than the current required for the improvement when the electric wire information satisfies a predetermined condition. In this case, the adjustment of the apparent power in the electric wire is not possible due to the change in the apparent electric power in the electric wire, as compared with the case where the device generates a current less than the amount necessary for improving the apparent electric power in the electric wire regardless of the electric wire information. It can be suppressed to be sufficient.
Further, the electric wire information includes information about the electric wire in the future, and the condition may be defined for the future apparent power in the electric wire. In this case, the apparent power in the wire is due to the change in the apparent power in the wire, compared to the case where the device generates less than the amount of current required to improve the apparent power in the wire regardless of the future apparent power in the wire. It is possible to prevent the adjustment of the power from becoming insufficient.
From another point of view, the device of the present disclosure is a device that receives electric power from an electric wire of a distribution system via a distribution transformer, and is an acquisition means for acquiring electric wire information related to the electric wire and the acquisition. It is a device provided with an adjusting means for adjusting an apparent power in the electric wire based on the electric wire information acquired by the means. In this case, in the electric wire on the power supply side rather than the distribution transformer, compared to the case where the apparent power in the electric wire on the supply side is adjusted without supplying the current to the electric wire on the power supply side than the distribution transformer. It is possible to reduce the influence of the state of the electric wire on the receiving side of the electric power on the adjustment of the apparent electric power as compared with the transformer for distribution.
From another point of view, the information processing apparatus of the present disclosure has an acquisition means for acquiring electric wire information regarding an electric wire of a distribution system, and an apparent electric power in the electric wire based on the electric wire information acquired by the acquisition means. It is an information processing apparatus provided with a control means for generating electric current used for adjustment from the electric wire to a device receiving electric power via a distribution transformer. In this case, in the electric wire on the power supply side rather than the distribution transformer, compared to the case where the apparent power in the electric wire on the supply side is adjusted without supplying the current to the electric wire on the power supply side than the distribution transformer. It is possible to reduce the influence of the state of the electric wire on the receiving side of the electric power on the adjustment of the apparent electric power as compared with the transformer for distribution.

It is a figure which showed an example of the electric power control system which concerns on this embodiment. It is a figure which showed the hardware configuration of a control server and an instruction server. It is a figure which showed the functional structure of HPS. It is a figure which showed the functional structure of a control server. It is a figure which showed the electric wire management table. It is a figure which showed the HPS management table. It is a flowchart which showed the flow of electric wire calculation processing. It is a flowchart which showed the flow of the supply amount calculation process.

Hereinafter, embodiments will be described with reference to the accompanying drawings.
FIG. 1 is a diagram showing an example of a power control system 1 according to the present embodiment.
The power control system 1 is a system for controlling apparent power.
The power control system 1 is provided with a power system 10, a plurality of power consumption facilities 20, a control server 30, and an instruction server 40.

The electric power system 10 is a system provided with equipment for supplying electric power to consumers of electric power. The power system 10 includes a power plant 11, a transmission line 12, a supply-side substation 13, a supply-side distribution line 14, an automatic voltage regulator (SVR: Step Voltage Regulator) 15, a receiving-side substation 16, and a receiving-side distribution line 17. , A pillar transformer 18, and a consumer-side distribution line 19 are provided.

The power plant 11 is a facility for generating electricity. Examples of the power plant 11 include a thermal power plant, a hydroelectric power plant, a nuclear power plant, a solar power plant, a wind power plant, a geothermal power plant, and the like.
The transmission line 12 is a line through which the current constituting the electric power generated in the power plant 11 flows. The transmission line 12 is provided from the power plant 11 to the supply side substation 13.

The supply-side substation 13 is a facility for converting voltage. The supply-side substation 13 is provided on the power supply side with respect to the receiving-side substation 16. In the present embodiment, the equipment located on the most supply side of the electric power is the power plant 11. Further, the equipment located on the receiving side of the electric power is the electric power consuming facility 20.
The supply-side substation 13 converts the voltage supplied through the transmission line 12. The substation 13 on the supply side includes, for example, a substation that converts a voltage of 500,000 V to 154,000 V, a substation that converts a voltage of 154,000 V to 66,000 V, and 66,000. Examples include substations that convert the voltage of V to 22,000 V.

The supply-side distribution line 14 is a line through which a current generated by applying a converted voltage to the supply-side substation 13 flows. The supply-side distribution line 14 is provided from the supply-side substation 13 to the receiving-side substation 16. Further, the supply side distribution line 14 is provided on the power supply side with respect to the receiving side distribution line 17.
The SVR 15 adjusts the voltage supplied to the supply side distribution line 14. More specifically, the SVR 15 detects the voltage supplied to the supply side distribution line 14. Then, when the detected voltage is not in the predetermined range, the SVR 15 adjusts the voltage so that the voltage falls within the predetermined range.
The receiving-side substation 16 is a facility that converts the voltage supplied through the supply-side distribution line 14. Examples of the receiving side substation 16 include a substation that converts the supplied voltage to 6600V.

The receiving side distribution line 17 is a line through which a current generated by applying a converted voltage to the receiving side substation 16 flows. The receiving side distribution line 17 is provided from the receiving side substation 16 to the pole transformer 18. In the present embodiment, when the supply side distribution line 14 and the receiving side distribution line 17 are described without particular distinction, they may be simply referred to as “electric wires”.
The pole transformer 18 is a facility that converts the voltage supplied through the receiving side distribution line 17. Examples of the pole transformer 18 include a transformer that converts a voltage of 6600V to 200V, a transformer that converts a voltage of 6600V to 100V, and the like.

The consumer-side distribution line 19 is a line through which a current generated by applying a voltage converted to the pole transformer 18 flows. The power system 10 is provided with a plurality of consumer-side distribution lines 19. More specifically, the consumer-side distribution line 19 is provided for each power consuming facility 20. Each consumer side distribution line 19 is provided from the pole transformer 18 to the power consumption facility 20.
As described above, the electric power system 10 is a system provided outside the electric power consuming facility 20 and is a system for distributing the generated electric power to electric power consumers. Therefore, the power system 10 can also be regarded as a distribution system. The pole transformer 18 can also be regarded as a distribution transformer. The receiving side substation 16 is also an example of a distribution transformer in a broad sense.

Further, the power system 10 is provided with a plurality of electric wire sensors 10S. The electric wire sensor 10S is connected to the supply side distribution line 14. More specifically, the electric wire sensor 10S is connected to a portion of the supply side distribution line 14 on the power supply side rather than the SVR 15. Further, the electric wire sensor 10S is connected to each of the receiving side distribution electric wires 17. In other words, the electric wire sensor 10S is provided for each of the supply side distribution line 14 and the receiving side distribution line 17.

The electric wire sensor 10S detects a parameter relating to apparent power in the connected electric wire. The parameter relating to the apparent power is a parameter that affects the apparent power. Examples of the parameters related to the apparent power include the apparent power, the ineffective power, the ineffective voltage, the harmonic voltage, the current, the power factor, the apparent electric energy in a predetermined period, the ineffective power amount, and the like. Currents as parameters for apparent power include harmonic currents. Further, the harmonic voltage or harmonic current may be a harmonic voltage or harmonic current of a specific order. Specific orders include, for example, fifth harmonics. Further, as the parameters related to the apparent power, for example, the total harmonic distortion (THD) of the current, the THD of the voltage, and the like can be mentioned. Here, the THD of the current is calculated from the following equation (1). Further, the THD of the voltage is calculated from the following equation (2).

In the above equation (1), I ₁ is the fundamental wave current. Further, In is the _nth harmonic current.
In the above equation (2), V ₁ is the fundamental wave voltage. Further, V _n is the nth harmonic voltage.
The electric wire sensor 10S detects the above-mentioned parameters regarding apparent power, for example, at predetermined time intervals. In the following, parameters related to apparent power in electric wires may be referred to as power information. The predetermined time may be any time, but is, for example, one hour. Then, when the electric wire sensor 10S detects the electric power information, the detected electric power information is transmitted to the instruction server 40 together with the electric wire identification information for identifying the electric wire to be detected.

In the illustrated example, one supply-side substation 13 is shown in the power system 10, but the number of supply-side substations 13 is not limited to one in the figure. The power system 10 may be provided with two or more supply-side substations 13 having the same or different voltages to be converted.
Further, in the illustrated example, one receiving side substation 16 is shown in the power system 10, but the number of receiving side substations 16 is not limited to one in the drawing. The power system 10 may be provided with two or more receiving substations 16 having the same or different voltage to be converted.
Further, the number of the supply side distribution line 14 and the reception side distribution line 17 is not limited to the illustrated example. The power system 10 may be provided with more supply-side distribution lines 14 and receiving-side distribution lines 17 than the number shown in the figure. In this case, the electric wire sensor 10S may be provided for each supply side distribution line 14, or the electric wire sensor 10S may be provided for each receiving side distribution line 17.
Further, the power information detected by the electric wire sensor 10S is not limited to one type of parameter relating to apparent power. The electric wire sensor 10S may detect a plurality of types of parameters among the above-mentioned parameters. Then, the power information indicating each of the detected plurality of types of parameters may be transmitted to the instruction server 40. Further, the electric wire sensor 10S may be provided for each type of parameter to be detected.

The power consumption facility 20 is a facility that receives and consumes the power supplied from the power plant 11 through the distribution line 19 on the consumer side. Each power consumption facility 20 is provided with a heat pump system (HPS: Heat Pump System) 21 and a load 22.

The HPS 21 as an example of the device adjusts the temperature and humidity by using the electric power received from the electric power system 10. The target of adjustment by the HPS 21 includes the temperature and humidity of the space in the power consumption facility 20. Further, the target of the adjustment by the HPS 21 is the temperature of the liquid provided in the power consumption facility 20.

Further, the HPS 21 of the present embodiment can supply an electric current. The HPS 21 adjusts the above parameters regarding the apparent power in the HPS 21 by supplying an electric current. Further, the HPS 21 can supply a current to the electric wire in the power system 10. The HPS 21 adjusts the above parameters regarding the apparent power in the electric wire by supplying a current to the electric wire in the electric power system 10.

An example of the method of adjusting the parameters related to the apparent power in the electric wire by HPS21 will be described. When a harmonic current is generated in the electric wire, the HPS 21 reduces the harmonic current in the electric wire by supplying the electric wire with a current having a phase that cancels the harmonic current.
Another example of the method of adjusting the parameters related to the apparent power in the electric wire by HPS21 will be described. When the electric wire has an reactive power, the HPS 21 supplies a current to the electric wire to reduce the reactive power in the electric wire. In addition, the power factor of the electric wire improves as the reactive power of the electric wire decreases.
As described above, in the present embodiment, the parameters related to the apparent power in the electric wire of the electric power system 10 are adjusted by using the HPS 21. Further, the HPS 21 adjusts the parameters related to the apparent power in the HPS 21 by the same method as the adjustment of the electric wire. Here, as the parameters related to the apparent power change, the apparent power also changes. Therefore, the adjustment of each of the above parameters regarding the apparent power can be broadly regarded as the adjustment of the apparent power. In the following, each parameter relating to the apparent power to be adjusted may be collectively referred to as “apparent power”.

Examples of the HPS21 include a system for adjusting temperature and humidity. More specifically, the HPS21 includes equipment used in an HVAC (Heating Ventilation and Air Conditioning) system, such as an air conditioner, a showcase that adjusts the internal temperature, a refrigerator, a refrigerator, and a water heater. Be done.
When the control server 30 instructs the HPS 21 to adjust the apparent power of the electric wire, the HPS 21 adjusts the apparent power of the electric wire by supplying a current to the electric wire according to the received instruction.

The load 22 receives and consumes the electric power supplied from the power plant 11 through the consumer-side distribution line 19.
Further, in the present embodiment, the HPS sensor 21S is provided in each power consumption facility 20. The HPS sensor 21S detects information about the apparent power in the HPS 21. The HPS sensor 21S will be described in detail later.

In the illustrated example, one power consumption facility 20 is provided for each distribution line 19 on the consumer side, but the present invention is not limited to this. A plurality of power consumption facilities 20 may be provided for each distribution line 19 on the consumer side. Further, the number of HPS 21 and the number of loads 22 provided in the power consumption facility 20 are not limited to the illustrated examples. The power consumption facility 20 may be provided with more HPS 21 and loads 22 than the number shown in the figure. Further, the power consumption facility 20 in which the HPS 21 and the load 22 are not provided may be provided.

The control server 30 is a server device that controls the operation of the HPS 21. More specifically, the control server 30 controls the operation of the HPS 21 for adjusting the apparent power in the electric wire of the power system 10. When the control server 30 receives an instruction for adjusting the apparent power of the electric wire from the instruction server 40, the control server 30 determines the current value to be supplied to the HPS 21 for this adjustment, the current value per unit time, or the current value at a predetermined time. When the current value, the current value per unit time, and the current value at a predetermined time are described without particular distinction, they may be simply collectively referred to as "current value". Further, the current value supplied to the HPS 21 for adjusting the apparent power in the electric wire of the electric power system 10 may be referred to as an electric wire adjustment amount in the following.

Further, in the present embodiment, the control server 30 controls the operation of the HPS 21 for adjusting the apparent power in the HPS 21. More specifically, the adjustment of the apparent power in the own device of the HPS 21 is limited based on the electric wire adjustment amount.

The instruction server 40 is a server device that instructs the adjustment of the apparent power in the electric wire of the electric power system 10. When the instruction server 40 acquires the electric power information from the electric wire sensor 10S, the instruction server 40 identifies the electric wire whose apparent electric power needs to be adjusted from the acquired electric power information. More specifically, the instruction server 40 specifies an electric wire whose apparent electric power specified from the electric power information has reached the adjustment threshold value as an electric wire whose apparent electric power needs to be adjusted. The adjustment threshold value is a threshold value used for determining whether or not it is necessary to adjust the apparent power of the electric wire. The adjustment threshold is set as a threshold at which improvement of apparent power in the electric wire is required.
When the instruction server 40 identifies an electric wire that requires adjustment of the apparent power, it transmits an instruction for adjusting the apparent power in this electric wire to the control server 30. In this case, the instruction server 40 transmits a plurality of information including power information related to the electric wire that needs to be adjusted, information on the adjustment threshold value, and the like to the control server 30.

The instruction server 40 and the control server 30 are realized by, for example, a computer. The instruction server 40 and the control server 30 may be configured by a single computer or may be realized by distributed processing by a plurality of computers. Further, the instruction server 40 and the control server 30 may be realized on virtual hardware provided by cloud computing. In the following, when the instruction server 40 and the control server 30 are described without particular distinction, they may be simply referred to as a “server”.

In the present embodiment, the control server 30, each device provided in each power consumption facility 20, and the instruction server 40 are connected via a network (not shown). Further, the instruction server 40 and each electric wire sensor 10S are connected via a network (not shown). These networks may be capable of transmitting and receiving data. Further, the communication line used for transmitting and receiving data may be wired or wireless, or may be power line communication (PLC). Further, the configuration may be such that the communication destination is connected to the communication destination via a plurality of networks or communication lines.

Further, the number of control servers 30 and instruction servers 40 is not limited to the illustrated example. The power control system 1 may be provided with two or more control servers 30 and two or more instruction servers 40. Further, the control server 30 may be provided for each power consumption facility 20, for example.

FIG. 2 is a diagram showing the hardware configurations of the control server 30 and the instruction server 40.
The server is provided with a CPU 31, a ROM (Read Only Memory) 32, and a RAM (Random Access Memory) 33. Further, the server is provided with a storage device 35 which is composed of a hard disk device or the like and stores information. Further, the server is provided with a communication device 34 (communication I / F) for communicating with the outside.
In addition, the server is provided with an input device used for inputting information such as a keyboard and a mouse, and a display device such as a liquid crystal display.

The ROM 32 and the storage device 35 store a program executed by the CPU 31. The CPU 31 reads out the program stored in the ROM 32 and the storage device 35, and executes the program using the RAM 33 as a work area.
By executing the program stored in the ROM 32 and the storage device 35 by the CPU 31, each functional unit described later is realized.

Here, the program executed by the CPU 31 is stored in a computer-readable recording medium such as a magnetic recording medium (magnetic tape, magnetic disk, etc.), an optical recording medium (optical disk, etc.), an optical magnetic recording medium, or a semiconductor memory. It can be provided to the server in the state. Further, the program executed by the CPU 31 may be provided to the server by using a communication means such as the Internet.

FIG. 3 is a diagram showing a functional configuration of the HPS 21.
The HPS 21 is provided with an adjusting unit 211, a power conversion device 212, a power receiving path 213, and an active filter (AF: Active Filter) 214.
The adjusting unit 211 adjusts the temperature and humidity. The adjusting unit 211 is provided with a motor (not shown) that operates using the received electric power. Further, the adjusting unit 211 is provided with a heat exchanger (not shown), through which the air and liquid in the power consuming facility 20 are exchanged for heat.

The power converter 212 has an inverter (not shown) and a converter (not shown). The power conversion device 212 converts the electric power received from the electric power system 10 into electric power having a specific voltage and a specific frequency by using an inverter and a converter. The specific voltage and specific frequency are the voltage and frequency required for the operation of the motor provided in the adjusting unit 211. The power conversion device 212 supplies the converted power to the adjusting unit 211.
The power receiving path 213 is a path through which the power received by the power conversion device 212 in the HPS 21 passes.

The AF 214 as an example of the adjusting means is electrically connected to the power receiving path 213 of the power conversion device 212 in parallel with the power conversion device 212. The AF 214 adjusts the apparent power in the power receiving path 213 by supplying a current to the power receiving path 213 of the power conversion device 212.
Further, AF214 adjusts the apparent power in the electric wire of the electric power system 10 by supplying a current to the electric wire.

Further, the HPS sensor 21S detects the apparent power in the power receiving path 213 of the power conversion device 212. The HPS sensor 21S detects the apparent power, for example, at predetermined time intervals. The predetermined time may be any time, but is, for example, one hour. Then, when the HPS sensor 21S detects the apparent power, the HPS sensor 21S transmits the detected information to the control server 30 together with the HPS identification information for identifying the HPS 21 to be detected.

Although the functional configuration of the HPS 21 is shown in FIG. 3, the device used for adjusting the apparent power in the electric wire of the power system 10 is not limited to the HPS 21.
The device used for adjusting the apparent power in the electric wire of the power system 10 may be any device capable of supplying a current to the electric wire. Examples of devices capable of supplying electric current to electric wires include devices having a power conversion device. More specifically, examples of a device capable of supplying an electric current to an electric wire include a device having a power conversion device provided with at least one of an inverter and a converter. Examples of devices having a power conversion device include electric vehicles and storage batteries. Further, examples of the device having a power conversion device include a system for generating renewable energy such as a solar power generation system and a wind power generation system.

FIG. 4 is a diagram showing a functional configuration of the control server 30.
The control server 30 is provided with an acquisition unit 301, a storage unit 302, an electric wire calculation unit 303, an HPS calculation unit 304, a supply amount calculation unit 305, and a transmission unit 306.
The acquisition unit 301 as an example of the acquisition means acquires the information transmitted to the control server 30 and the information input to the control server 30. The information acquired in the acquisition unit 301 is stored in the storage unit 302.
The storage unit 302 stores information. The information stored in the storage unit 302 will be described in detail later.

The electric wire calculation unit 303 calculates the electric wire adjustment amount. When the instruction server 40 instructs the control server 30 to adjust the apparent power of the electric wire, the electric wire calculation unit 303 calculates the current value required for improving the apparent power of the electric wire to be adjusted. More specifically, the electric wire calculation unit 303 uses the electric power information and the adjustment threshold value transmitted to the control server 30 together with the electric wire adjustment instruction, and the current required for improving the apparent power of the electric wire to be adjusted. Calculate the value. In the following, the current value required for improving the apparent power of the electric wire may be referred to as the required amount of the electric wire. Further, the electric wire for which the apparent power is adjusted is hereinafter referred to as an adjustment target electric wire. The larger the difference between the apparent power shown in the power information and the adjustment threshold value, the larger the wire requirement may be calculated by the wire calculation unit 303. Then, the electric wire calculation unit 303 calculates the electric wire adjustment amount based on the calculated electric wire required amount. More specifically, the electric wire calculation unit 303 determines whether to calculate the required electric wire as the electric wire adjustment amount or the value larger than the required electric wire as the electric wire adjustment amount from the tendency of the apparent power in the electric wire to be adjusted. decide.

The HPS calculation unit 304 calculates the current value required for improving the apparent power in the power receiving path 213 of the power conversion device 212 of the HPS 21. The current value required to improve the apparent power in the power receiving path 213 of the power conversion device 212 of the HPS 21 is hereinafter referred to as an HPS required amount. The HPS calculation unit 304 calculates the required amount of HPS using the information detected by the HPS sensor 21S. The HPS calculation unit 304 calculates the latest HPS required amount each time the detection result by the HPS sensor 21S is transmitted to the control server 30.

The supply amount calculation unit 305 calculates the current value to be supplied from the AF 214 of the HPS 21 to the electric wire in the power system 10. More specifically, the supply amount calculation unit 305 supplies the electric wire from the AF 214 to the electric wire in the power system 10 based on the electric wire adjustment amount calculated by the electric wire calculation unit 303 and the HPS required amount calculated by the HPS calculation unit 304. Calculate the current value. The current value supplied from the AF 214 to the electric wire in the power system 10 is hereinafter referred to as an electric wire supply amount. The electric wire supply amount is the total value of the current value supplied to AF214 for adjusting the apparent power in the electric wire and the current value supplied to AF214 for adjusting the apparent power in the power receiving path 213 of the HPS21.
The transmission unit 306 transmits information indicating the electric wire supply amount to the HPS 21.

FIG. 5 is a diagram showing an electric wire management table. The electric wire management table is a table for managing electric wires in the electric power system 10. The electric wire management table is stored in the instruction server 40.
In the electric wire management table, the electric wire identification information is shown in "Electric wire". "14" shown in "electric wire" means that it is a supply side distribution line 14. Further, "17" shown in "electric wire" means that it is a receiving side distribution line 17. Further, "A" and "B" attached together with "17" are information for identifying which of the plurality of receiving side distribution lines 17 is, respectively.

Further, in the electric wire management table, the latest electric power information about the "electric wire" is shown in the "latest value". In other words, the "electric power information" shows the latest detection result of the "electric wire" by the electric wire sensor 10S.
Further, in the electric wire management table, the past electric power information about the "electric wire" is shown in the "previous value". More specifically, the "previous value" indicates the previous detection result of the "electric wire" by the electric wire sensor 10S.
Each time the acquisition unit 301 acquires the latest detection result by the electric wire sensor 10S, the acquisition unit 301 writes the power information shown in the "latest value" in the "previous value" and writes the power information as the latest detection result in the "previous value". Write to "latest value".

Further, in the electric wire management table, the predicted value of the apparent power in the "electric wire" is shown in the "predicted value". More specifically, the "predicted value" indicates a value calculated as the apparent power of the "electric wire" after a predetermined time has elapsed. In other words, the "predicted value" indicates the value calculated as the future apparent power in the "electric wire". The predetermined time may be any time, but is, for example, one hour.

An example of a method for calculating future apparent power will be described. The instruction server 40 may calculate the tendency of the apparent power in the "electric wire" from the "latest value" and the "previous value", and calculate the future apparent power in the "electric wire" from the calculated tendency. Further, the instruction server 40 may accumulate past electric power information in the "electric wire" and calculate future apparent electric power by using the accumulated electric power information. More specifically, the instruction server 40 stores power information for each season, such as power information for each season and power information for each time zone in a day. Then, even if the power information of the time closest to the target time to be calculated as the future apparent power is extracted from the accumulated power information and the future apparent power is calculated so as to be close to the extracted power information. good.
Each time the "latest value" and "previous value" are updated, the instruction server 40 calculates the future apparent power of the "electric wire" and writes the calculated value in the "predicted value".

Further, in the electric wire management table, the amount of free space up to the capacity of the current value in the "electric wire" is shown in "free capacity". The capacity of the current value in the electric wire is the maximum current value that can be passed through the electric wire.
An example of a method for calculating the amount of free space up to the capacity of the current value will be described. The user of the power control system 1 inputs the capacity of each electric wire to the instruction server 40 in advance. Further, the instruction server 40 calculates the current value flowing in the "electric wire" from the "latest value". Then, the value obtained by subtracting the calculated current value from the capacity of the "electric wire" is calculated as the "free capacity".
Each time the "latest value" is updated, the instruction server 40 calculates the amount of free space up to the capacity of the current value in the "electric wire" and writes the calculated value in the "free capacity".

An example of the contents of the electric wire management table will be described. For the receiving side distribution line 17 specified from "17A" of the "electric wire", "P2" is shown as the "latest value", "Pa2" is shown as the "previous value", and "Pr2" is shown as the "predicted value". Is shown, and "M2" is shown as the "free space".

When the instruction server 40 instructs the control server 30 to adjust the apparent power of the electric wire, the instruction server 40 transmits the instruction information about the adjustment target electric wire to the control server 30. The instruction information is information regarding an instruction for adjusting the apparent power of the electric wire to be adjusted. The instruction information includes an instruction for adjusting the apparent power of the electric wire to be adjusted, the latest value information, the previous value information, and the predicted value information. The latest value information is information showing the "latest value" of the wire to be adjusted. The previous value information is information showing the "previous value" of the wire to be adjusted. The predicted value information is information showing the "predicted value" of the electric wire to be adjusted. Further, the instruction server 40 transmits the free space information together with the instruction information to the control server 30. The free capacity information is information indicating the "free capacity" of the wire to be adjusted. The instruction information can also be taken as electric wire information regarding the electric wire. In addition, the free capacity information can be grasped as the capacity information regarding the capacity of the electric wire.

FIG. 6 is a diagram showing an HPS management table. The HPS management table is a table for managing the HPS 21. The HPS management table is stored in the storage unit 302.
In the HPS management table, the HPS identification information is shown in "HPS". The "A" to "J" attached together with the "21" of the "HPS" are information for identifying which of the plurality of HPS 21 each is.

Further, in the HPS management table, the wire identification information is shown in the "via wire". The electric wire identification information shown in the "via electric wire" is the electric wire identification information of the electric wire passed through in the supply of electric power from the electric power system 10 to the "HPS". The "A" and "B" attached together with the "17" of the "via wire" are information for identifying which of the plurality of receiving side distribution lines 17 is, respectively.
The user of the electric power control system 1 inputs the electric wire identification information of the electric wire passed through in the supply of electric power to the HPS 21 to the control server 30 for each HPS 21. When the acquisition unit 301 acquires the electric wire identification information acquired by the control server 30, the acquisition unit 301 writes the electric wire identification information in the "via electric wire" associated with the target "electric wire".

Further, in the HPS management table, the capacity of the current value of AF214 in HPS 21 is shown in "Capacity". The capacity of the current value of AF214 is the maximum current value that AF214 can generate. As the capacity of the current value of AF214, the information described in the specifications of HPS21 may be used.
The user of the power control system 1 inputs the current capacity information indicating the capacity of the current value of the AF 214 to the control server 30 for each HPS 21. When the acquisition unit 301 acquires the current capacity information, the acquisition unit 301 writes the capacity of the current value shown in the current capacity information in the "capacity" associated with the target "electric wire". Here, the current capacity information can also be captured as capacity information regarding the ability of the HPS 21 to generate a current.

Further, in the HPS management table, the HPS required amount calculated by the HPS calculation unit 304 is shown in "HPS required amount". Each time the HPS calculation unit 304 calculates the latest HPS requirement, the calculated latest HPS requirement is written in the "HPS requirement" associated with the target "electric wire".

An example of the contents of the HPS management table will be described. The "HPS" specified from "21A" is associated with "17A" as the "via wire", "35" as the "capacity", and "10" as the "HPS required amount". ..

FIG. 7 is a flowchart showing the flow of the electric wire calculation process. The electric wire calculation process is a process in which the control server 30 calculates the electric wire adjustment amount.
The acquisition unit 301 determines whether or not an instruction for adjusting the apparent power of the electric wire has been received (step (hereinafter referred to as “S”) 101). The acquisition unit 301 makes the above determination depending on whether or not the instruction information has been acquired from the instruction server 40. While the negative result continues, the acquisition unit 301 repeats the determination in step 101. On the other hand, when the acquisition unit 301 acquires the instruction information, an affirmative result is obtained and the process proceeds to step 102.

The electric wire calculation unit 303 calculates the required electric wire amount based on the latest electric power information included in the instruction information (S102).
Hereinafter, a case where the required electric wire amount is calculated as “100” by the electric wire calculation unit 303 will be described.

The electric wire calculation unit 303 calculates whether or not the current value required for improving the future apparent power of the electric wire to be adjusted is larger than the required amount of the electric wire (S103). In the following, the current value required to improve the future apparent power of the electric wire may be referred to as a future required amount. The electric wire calculation unit 303 calculates a future required amount from the prediction information included in the instruction information. Then, the above determination is made depending on whether or not the calculated future required amount is larger than the electric wire required amount.

If the required amount in the future is less than or equal to the required amount of electric wire (NO in S103), the process proceeds to the next step. The electric wire calculation unit 303 determines whether or not the latest electric power information satisfies the change condition (S104). The change condition is a condition defined for the tendency of the apparent power of the adjusted electric wire to change. In the present embodiment, even when the apparent power of the adjusted electric wire has a large tendency to change, the change condition is defined from the viewpoint of improving the future apparent power of the adjusted electric wire. Further, the change condition of the present embodiment is that the "latest value" associated with the electric wire to be adjusted in the electric wire management table (see FIG. 5) is changed by a predetermined ratio or more with respect to the "previous value". That is. The predetermined ratio may be any ratio, but is, for example, 10%. The electric wire calculation unit 303 determines whether or not the latest power information satisfies the change condition based on the latest value information and the previous value information included in the instruction information.

When the latest power information does not satisfy the change condition (NO in S104), the wire calculation unit 303 calculates the required wire amount as the wire adjustment amount (S105). In this example, "100", which is the required amount of electric wire, is calculated as the electric wire adjustment amount.

On the other hand, when the required amount in the future is larger than the required amount of the electric wire (YES in S103), or when the latest power information satisfies the change condition (YES in 104), the electric wire calculation unit 303 is larger than the required amount of the electric wire. A large value is calculated as the wire adjustment amount (S106). In this example, "110", which is larger than "100", which is the required amount of electric wire, is calculated as the electric wire adjustment amount.

FIG. 8 is a flowchart showing the flow of the supply amount calculation process. The supply amount calculation process is a process in which the control server 30 calculates the electric wire supply amount.
The control server 30 determines the "HPS" in which the wire identification information related to the wire to be adjusted is associated with the "via wire" in the HPS management table (see FIG. 6) as the HPS 21 used for the adjustment. Then, the supply amount calculation process is performed on the HPS21 determined to be used for the adjustment. The HPS21 that is the target of the supply amount calculation process may be referred to as the target HPS21 below. Further, AF214 in the target HPS21 may be referred to as a target AF214 below.

The electric wire calculation unit 303 determines the electric wire adjustment amount for one target HPS 21 from the electric wire adjustment amount calculated in the electric wire calculation process (see FIG. 7) (S201). In addition, in the wire calculation process, the total wire adjustment amount for all HPS 21 used for adjusting the apparent power in the wire to be adjusted is calculated. On the other hand, in the supply amount calculation process, the wire adjustment amount for one HPS21 is calculated.
The wire calculation unit 303 refers to the HPS management table (see FIG. 6). Then, the electric wire adjustment amount for the target HPS 21 is determined from the "capacity" associated with the target HPS 21. The wire calculation unit 303 may increase the wire adjustment amount for the target HPS 21 as the "capacity" of the target HPS 21 increases.

The supply amount calculation unit 305 calculates the total value of the wire adjustment amount of the target HPS21 and the required amount of HPS of the target HPS21 (S202). The total value of the electric wire adjustment amount of the target HPS 21 and the HPS required amount of the target HPS 21 may be referred to as a total required amount in the following. The supply amount calculation unit 305 calculates the total value of the "HPS required amount" of the target HPS 21 shown in the HPS management table and the electric wire adjustment amount of the target HPS 21 as the total required amount.

The supply amount calculation unit 305 determines whether or not the calculated total required amount satisfies any of the free condition and the current capacity condition (S203).
The vacancy condition is a condition defined for the relationship between the amount of vacancy up to the capacity of the current value in the wire to be adjusted and the total required amount. In the present embodiment, a vacancy condition is defined from the viewpoint of allowing a total required amount of current to flow through the adjustment target electric wire without causing a short circuit or ignition in the adjustment target electric wire. Further, in the present embodiment, it is defined as a vacancy condition that the amount of vacancy up to the capacity of the current value in the adjusted electric wire is equal to or more than the total required amount. The supply amount calculation unit 305 determines whether or not the total required amount satisfies the free space condition depending on whether or not the "free capacity" of the adjustment target electric wire shown in the free capacity information is equal to or greater than the total required amount.
The current capacity condition is a condition defined for the relationship between the capacity of the current value of the target AF214 and the total required amount. In the present embodiment, the current capacity condition is defined from the viewpoint of suppressing the occurrence of a defect in the target AF 214. Further, in the present embodiment, it is defined as a current capacity condition that the capacity of the current value of the target AF 214 is equal to or larger than the total required amount. The supply amount calculation unit 305 refers to the HPS management table. Then, it is determined whether or not the total required amount satisfies the current capacity condition depending on whether or not the "capacity" of the target HPS 21 is equal to or larger than the total required amount.

When the total required amount satisfies both the vacant condition and the current capacity condition (YES in S203), the supply amount calculation unit 305 calculates the total required amount as the electric wire supply amount of the target HPS21 (S204).
On the other hand, when the total required amount does not satisfy at least one of the free condition and the current capacity condition (NO in S203), the supply amount calculation unit 305 determines either the free condition or the current capacity condition for the total required amount. It is determined whether or not the condition is satisfied (S205).

When the total required amount satisfies either one of the free condition and the current capacity condition (YES in S205), the supply amount calculation unit 305 determines whether or not the condition to be satisfied is the free condition (S206).
When the condition to be satisfied is an empty condition (YES in S206), it means that the total required amount does not satisfy the current capacity condition. In this case, the supply amount calculation unit 305 makes the current value supplied to the target AF 214 in order to adjust the apparent power in the power receiving path 213 of the target HPS 21 smaller than the required amount of HPS. Hereinafter, the current value supplied to the target AF 214 for adjusting the apparent power in the power receiving path 213 of the target HPS 21 may be referred to as an HPS adjustment amount. The supply amount calculation unit 305 limits the HPS adjustment amount so that the total value of the HPS adjustment amount and the electric wire adjustment amount of the target HPS 21 is equal to or less than the “capacity” of the target HPS 21. Then, the total value of the limited HPS adjustment amount and the electric wire adjustment amount is calculated as the electric wire supply amount (S207).

Further, if a negative result is obtained in step 206, it means that the total required amount satisfies the current capacity condition but does not satisfy the free condition. In this case, the supply amount calculation unit 305 makes the HPS adjustment amount smaller than the required amount of HPS. More specifically, the supply amount calculation unit 305 limits the HPS adjustment amount so that the total value of the HPS adjustment amount and the wire adjustment amount of the target HPS 21 is equal to or less than the "free capacity" of the adjustment target wire. .. Then, the total value of the limited HPS adjustment amount and the electric wire adjustment amount is calculated as the electric wire supply amount (S208).

When the total required amount does not satisfy both the free condition and the current capacity condition (NO in S205), the supply amount calculation unit 305 supplies the target AF214 to adjust the apparent power in the power receiving path 213 of the target HPS21. The current value to be caused is made smaller than the required amount of HPS. More specifically, in the supply amount calculation unit 305, the total value of the HPS adjustment amount and the wire adjustment amount of the target HPS21 is equal to or less than the "free capacity" of the adjustment target electric wire and equal to or less than the "capacity" of the target HPS21. The HPS adjustment amount is limited so as to be. Then, the total value of the limited HPS adjustment amount and the electric wire adjustment amount is calculated as the electric wire supply amount (S209).

When any of step 204, step 207, step 208, and step 209 is processed, the supply amount calculation unit 305 updates the amount of vacancy up to the capacity of the current value in the adjusted electric wire (S210). More specifically, the supply amount calculation unit 305 sets the value obtained by subtracting the electric wire supply amount from the amount of vacancy up to the capacity of the current value in the electric wire to be adjusted up to the capacity of the current value in the electric wire to be adjusted. Update as the latest amount of free space.

It is determined whether or not the electric wire supply amount has been calculated for all the HPS 21 used for adjusting the apparent power in the electric wire to be adjusted (S211).
When the wire supply amount has not been calculated for any of all the HPS21 used for the adjustment (NO in S211), the processes after step 201 are repeated for the HPS21 for which the wire supply amount has not been calculated.
Further, when the electric wire supply amount is calculated for all HPS 21 (YES in S211), the supply amount calculation process is completed.

The transmission unit 306 transmits information indicating the electric wire supply amount determined in the supply amount calculation process to the HPS 21 which is the target of the instruction as an operation instruction. When the HPS 21 receives an instruction, it operates according to the content of the received instruction. More specifically, the HPS 21 that has received the instruction supplies the current of the instructed electric wire supply amount to the electric wire to be adjusted in the electric power system 10.
As described above, in the present embodiment, the electric wire calculation unit 303, the supply amount calculation unit 305, and the transmission unit 306 control the adjustment of the apparent power of the electric wire to be adjusted by the HPS 21. Therefore, the electric wire calculation unit 303, the supply amount calculation unit 305, and the transmission unit 306 can also be regarded as control means.

In the following, when five HPS 21s whose HPS identification information is "21A" to "21E" (see FIG. 6) are used in the adjustment of the apparent power of the electric wire whose wire identification information is "17A" (see FIG. 5). The supply amount calculation process performed sequentially will be described.
In this example, it is assumed that the wire adjustment amount is calculated as "100" in the wire calculation process (see FIG. 7). Further, it is assumed that the amount of vacancy up to the capacity of the current value in the electric wire of "17A" is "140". Further, the respective wire adjustment amounts for the HPS21 of "21A", "21B", "21C", "21D", and "21E" are "25", "25", "25", "20", respectively. It shall be "5".

First, the supply amount calculation process is performed for the HPS 21 of "21A". The wire calculation unit 303 determines the wire adjustment amount for the HPS 21 of "21A" to be "25" as described above (S201).
The supply amount calculation unit 305 calculates the total required amount of HPS21 of “21A” (S202). The HPS requirement for the HPS 21 of "21A" is "10" (see FIG. 6). Therefore, the total required amount, which is the total value of the wire adjustment amount and the HPS required amount of the HPS 21 of "21A", is "35".

The supply amount calculation unit 305 determines whether or not the total required amount of the HPS 21 of "21A" satisfies any of the free condition and the current capacity condition (S203). Here, the total required amount "35" of the HPS 21 of "21A" is smaller than "140" which is the amount of vacancy up to the capacity of the current value in the electric wire of "17A". Therefore, the total required amount satisfies the vacancy condition. Further, the total required amount "35" is "35" which is the "capacity" of the HPS21 of "21A". Therefore, the total required amount also satisfies the current capacity condition (YES in S203).
In this case, the supply amount calculation unit 305 calculates the total required amount "35" as the electric wire supply amount of the HPS21 of "21A" (S204).

The supply amount calculation unit 305 is obtained by subtracting "35", which is the electric wire supply amount of the HPS21 of "21A", from "140", which is the amount of vacancy up to the capacity of the current value in the electric wire of "17A". The value "105" is updated as the latest amount of free space (S210).
The supply amount calculation unit 305 determines whether or not the electric wire supply amount has been calculated for all HPS 21 (S211). In this example, since the electric wire supply amount for the HPS 21 of "21B" to "21E" has not been calculated (NO in S211), the process returns to step 201.

Subsequently, the supply amount calculation process is performed for the HPS21 of "21B". The wire calculation unit 303 determines the wire adjustment amount for the HPS 21 of "21B" to be "25" as described above (S201). Further, since the HPS required amount of the HPS21 of "21B" is "10" (see FIG. 6), the supply amount calculation unit 305 calculates the total required amount as "35" (S202). This total required amount is smaller than "105", which is the latest empty amount up to the capacity of the current value in the wire of "17A", and is "35", which is the "capacity" of HPS21 of "21B". .. Therefore, the total required amount satisfies both the free condition and the current capacity condition (YES in S203).
The supply amount calculation unit 305 calculates the total required amount "35" as the electric wire supply amount of the HPS21 of "21B" (S204).

The supply amount calculation unit 305 is obtained by subtracting "35", which is the electric wire supply amount of the HPS21 of "21B", from "105", which is the amount of vacancy up to the capacity of the current value in the electric wire of "17A". The value "70" is updated as the latest amount of free space (S210).
The supply amount calculation unit 305 determines whether or not the electric wire supply amount has been calculated for all HPS 21 (S211). In this example, since the electric wire supply amount for the HPS 21 of "21C" to "21E" has not been calculated (NO in S211), the process returns to step 201.

Subsequently, the supply amount calculation process is performed for the HPS 21 of "21C". The wire calculation unit 303 determines the wire adjustment amount for the HPS 21 of "21C" to be "25" as described above (S201). Further, since the HPS required amount of the HPS21 of "21C" is "10" (see FIG. 6), the supply amount calculation unit 305 calculates the total required amount as "35" (S202). This total required amount is smaller than "70", which is the latest empty amount up to the capacity of the current value in the wire of "17A", and is "35", which is the "capacity" of HPS21 of "21C". .. Therefore, the total required amount satisfies both the free condition and the current capacity condition (YES in S203).
The supply amount calculation unit 305 calculates the total required amount “35” as the electric wire supply amount of the HPS21 of “21C” (S204).

The supply amount calculation unit 305 is obtained by subtracting "35", which is the electric wire supply amount of the HPS21 of "21C", from "70", which is the amount of vacancy up to the capacity of the current value in the electric wire of "17A". The value "35" is updated as the latest amount of free space (S210).
The supply amount calculation unit 305 determines whether or not the electric wire supply amount has been calculated for all HPS 21 (S211). In this example, since the wire supply amount for the HPS 21 of "21D" and "21E" has not been calculated (NO in S211), the process returns to step 201.

Subsequently, the supply amount calculation process is performed for the HPS 21 of "21D". The wire calculation unit 303 determines the wire adjustment amount for the HPS 21 of "21D" to be "20" as described above (S201). Further, since the HPS required amount of the HPS21 of "21D" is "10" (see FIG. 6), the supply amount calculation unit 305 calculates the total required amount as "30" (S202). This total requirement is less than "35", which is the latest free space up to the capacity of the current value in the "17A" wire. On the other hand, the total required amount is larger than "25" which is the "capacity" of HPS21 of "21D". Therefore, the total required amount satisfies the vacancy condition but does not satisfy the current capacity condition (YES in S206).
In this case, the supply amount calculation unit 305 sets the HPS adjustment amount to "10", which is the required amount of HPS, so that the total value of the HPS adjustment amount and the wire adjustment amount for the HPS21 of "21D" is "25" or less. Limit to a smaller "5". Then, "25", which is the total value of the limited HPS adjustment amount "5" and the electric wire adjustment amount "20", is calculated as the electric wire supply amount of the HPS21 of "21D" (S207).

The supply amount calculation unit 305 is obtained by subtracting "25", which is the electric wire supply amount of the HPS21 of "21D", from "35", which is the amount of vacancy up to the capacity of the current value in the electric wire of "17A". The value "10" is updated as the latest amount of free space (S210).
The supply amount calculation unit 305 determines whether or not the electric wire supply amount has been calculated for all HPS 21 (S211). In this example, since the electric wire supply amount for the HPS21 of "21E" has not been calculated (NO in S211), the process returns to step 201.

Subsequently, the supply amount calculation process is performed for the HPS21 of "21E". The wire calculation unit 303 determines the wire adjustment amount for the HPS 21 of "21E" to be "5" as described above (S201). Further, since the HPS required amount of the HPS21 of "21E" is "10" (see FIG. 6), the supply amount calculation unit 305 calculates the total required amount as "15" (S202). This total requirement is smaller than "20", which is the "capacity" of HPS21 of "21D". On the other hand, the total required amount is larger than "10", which is the latest empty amount up to the capacity of the current value in the wire of "17A". Therefore, the total required amount satisfies the current capacity condition but does not satisfy the empty condition (NO in S206).
In this case, the supply amount calculation unit 305 sets the HPS adjustment amount to "10", which is the required amount of HPS, so that the total value of the HPS adjustment amount and the wire adjustment amount for the HPS21 of "21E" is "10" or less. Limit to a smaller "5". Then, "10", which is the total value of "5" which is the limited HPS adjustment amount and "5" which is the electric wire adjustment amount, is calculated as the electric wire supply amount of the HPS21 of "21E" (S207).

The supply amount calculation unit 305 is obtained by subtracting "10", which is the electric wire supply amount of the HPS21 of "21E", from "10", which is the amount of vacancy up to the capacity of the current value in the electric wire of "17A". The value "0" is updated as the latest amount of free space (S210). Further, since the electric wire supply amount for the HPS 21 of "21E" is calculated, the electric wire supply amount is calculated for all the HPS 21. This completes the supply amount calculation process.

As described above, in the present embodiment, when the acquisition unit 301 of the control server 30 acquires the instruction information from the instruction server 40, the supply amount calculation unit 305 calculates the electric wire supply amount for the HPS 21. Further, the transmission unit 306 transmits the information indicating the electric wire supply amount calculated by the supply amount calculation unit 305 to the HPS 21 which is the target of the instruction as an operation instruction. Upon receiving the instruction, the HPS 21 supplies the current of the instructed electric wire supply amount to the electric wire to be adjusted in the electric power system 10. In other words, the supply amount calculation unit 305 of the present embodiment causes the HPS 21 to generate a current used for adjusting the apparent power of the adjustment target electric wire based on the instruction information acquired by the acquisition unit 301.

Here, a configuration in which the apparent power in the adjustment target electric wire is adjusted by an embodiment different from the present embodiment is also conceivable. One example is a configuration in which the HPS 21 supplies a current to the power consuming facility 20 and the consumer side distribution wire 19 to improve the apparent power in the power consuming facility 20 and the apparent power in the consumer side distribution line 19. According to this configuration, the apparent power in the power consuming facility 20 and the apparent power in the consumer side distribution line 19 are improved, and as a result, the apparent power in the supply side distribution line 14 and the apparent power in the receiving side distribution line 17 are improved. Power may be improved. However, according to this configuration, if there is a problem with the apparent power in any of the plurality of consumer-side distribution lines 19 connected to the receiving-side distribution line 17, the apparent power in the supply-side distribution line 14 occurs. It becomes difficult to improve the electric power and the apparent electric power in the receiving side distribution line 17. The case where there is a problem with the apparent power is the case where the power factor is low.

On the other hand, if the HPS 21 is configured to supply a current to the adjustment target electric wire as in the present embodiment, the influence of the state of the consumer side distribution line 19 on the adjustment of the apparent power in the adjustment target electric wire is less likely to occur. Can be done.

In particular, in the present embodiment, a plurality of power consumption facilities 20 are connected to the supply side distribution line 14 and the receiving side distribution line 17 via the pole transformer 18 and the consumer side distribution line 19. Here, the supply side distribution wire connected to the power consuming facility 20 in which the problem occurs due to the problem in the apparent power in the power consuming facility 20 in any of the plurality of power consuming facilities 20. Problems may also occur in the apparent power consumption of the 14 and the receiving side distribution wire 17. Even in this case, by improving the apparent power in the adjusted electric wire by using HPS21, not only the adjusted electric wire but also the power receiving facility 20 or the like where the problem is occurring is on the receiving side of the electric power from the adjusted electric wire. The apparent power in the equipment installed in is also improved. In other words, the HPS 21 provided in the specific power consuming facility 20 can improve the apparent power problem in the power consuming facility 20 different from the specific power consuming facility 20.

Further, the HPS 21 of the present embodiment can adjust the apparent power in its own device. Then, the supply amount calculation unit 305 limits the adjustment of the apparent power in the HPS 21 by the HPS 21 when the HPS 21 generates the current used for adjusting the apparent power in the electric wire to be adjusted.
In this case, the restriction on the adjustment of the apparent power in the adjustment target electric wire by the HPS21 is relaxed by the amount that the adjustment of the apparent power in the HPS 21 by the HPS 21 is restricted. Therefore, it is suppressed that the adjustment of the apparent power in the adjustment target electric wire becomes insufficient as compared with the case where the adjustment of the apparent power in the HPS 21 is unconditionally performed by the HPS21.

In particular, in the present embodiment, the supply amount calculation unit 305 limits the adjustment of the apparent power in the HPS 21 by the HPS 21 based on the free capacity information.
In this case, the current exceeding the capacity of the adjustment target electric wire is suppressed from flowing to the adjustment target electric wire by the amount that the adjustment of the apparent power in the HPS 21 is limited based on the capacity of the adjustment target electric wire. Therefore, it is possible to suppress the occurrence of a short circuit or ignition in the adjustment target electric wire as compared with the case where the adjustment of the apparent power in the adjustment target electric wire and the adjustment of the apparent power in the HPS 21 are irrelevant to the capacity of the adjustment target electric wire.

Further, in the present embodiment, the supply amount calculation unit 305 limits the adjustment of the apparent power in the HPS 21 by the HPS 21 based on the current capacity information.
In this case, the load generated on the HPS 21 is reduced by the amount that the adjustment of the apparent power in the HPS 21 is limited based on the ability of the HPS 21 to generate a current. Therefore, it is possible to suppress the occurrence of a defect in the HPS 21 as compared with the case where the adjustment of the apparent power in the adjustment target electric wire and the adjustment of the apparent power in the HPS 21 are independent of the ability of the HPS 21 to generate a current.

Further, in the present embodiment, the electric wire calculation unit 303 calculates the electric wire adjustment amount larger than the electric wire required amount. Further, the supply amount calculation unit 305 calculates the electric wire supply amount to be equal to or larger than the electric wire adjustment amount. Then, the HPS 21 supplies the current of the electric wire supply amount to the adjustment target electric wire in the electric power system 10. In other words, the electric wire calculation unit 303 and the supply amount calculation unit 305 cause the HPS 21 to generate a current larger than the current required for improving the apparent power of the electric wire to be adjusted.
When the apparent power of the adjusted wire changes with the passage of time, when the current is supplied from the HPS21 to the adjusted wire, the current required to improve the apparent power of the adjusted wire becomes larger than the required amount of the wire. May be. Even in this case, the apparent power in the adjustment target electric wire can be improved by supplying a current larger than the required amount of the electric wire to the adjustment target electric wire. Therefore, the adjustment of the apparent power in the adjusted electric wire is not possible due to the change in the apparent power in the adjusted electric wire, as compared with the case where the current less than the amount required for improving the apparent power in the adjusted electric wire is generated in the HPS21. It can be suppressed to be sufficient.

Further, in the present embodiment, the electric wire calculation unit 303 calculates the future required amount from the prediction information included in the instruction information, and when the calculated future required amount is larger than the electric wire required amount, the electric wire adjustment amount is used as the electric wire required amount. Calculate larger than. Further, the electric wire calculation unit 303 calculates the electric wire adjustment amount larger than the electric wire required amount when the latest electric power information included in the instruction information satisfies the change condition. In other words, the electric wire calculation unit 303 and the supply amount calculation unit 305 cause the HPS 21 to generate a current larger than the current required for improving the apparent power of the electric wire to be adjusted when the instruction information satisfies a predetermined condition. The predetermined condition is that the future required amount calculated from the predicted information included in the instruction information is larger than the required amount of the electric wire. Further, as a predetermined condition, the latest power information included in the instruction information satisfies the change condition.
In this case, the adjustment target is caused by the change in the apparent power of the adjustment target electric wire, as compared with the case where the HPS 21 generates a current less than or equal to the amount required for improving the apparent power of the adjustment target electric wire regardless of the content of the instruction information. It is possible to prevent insufficient adjustment of the apparent power in the electric wire.

In particular, in the present embodiment, the predetermined condition is that the required amount in the future is larger than the required amount of the electric wire. In other words, the predetermined conditions are defined for the future apparent power of the wire to be adjusted.
In this case, it is caused by the change in the apparent power of the adjusted wire as compared with the case where the HPS21 generates a current less than the amount required for improving the apparent power of the adjusted electric wire regardless of the future apparent power of the adjusted electric wire. Therefore, it is possible to prevent insufficient adjustment of the apparent power in the wire to be adjusted.

Further, in the present embodiment, while the HPS adjustment amount is limited, a current larger than the required amount of the electric wire flows through the electric wire to be adjusted. Therefore, even when the HPS adjustment amount is limited, the apparent power in the power receiving path 213 of the power conversion device 212 of the HPS 21 can be improved.

In the present disclosure, the HPS calculation unit 304 calculates the required amount of HPS, but the present invention is not limited to this.
The HPS calculation unit 304 may calculate the current value supplied from the AF 214 in order to adjust the apparent power in the power receiving path 213 of the power conversion device 212 of the HPS 21. Then, the calculated current value may be used for the calculation of the electric wire supply amount by the supply amount calculation unit 305.

Further, the information used by the electric wire calculation unit 303 to calculate the future required amount is not limited to the above example.
The acquisition unit 301 may acquire information on the amount of electric power generated by a system that generates renewable energy such as a solar power generation system or a wind power generation system. Then, the electric wire calculation unit 303 may calculate the future required amount by calculating the tendency of the apparent electric power in the electric wire to be adjusted from the information regarding the electric energy acquired by the acquisition unit 301. Further, the acquisition unit 301 may acquire information on the weather in the area where the adjustment target electric wire is provided. Then, the electric wire calculation unit 303 may calculate the tendency of the electric power demand from the information on the weather acquired by the acquisition unit 301. Then, the future required amount may be calculated by calculating the tendency of the apparent power in the adjusted electric wire from the calculated tendency of the electric power demand.

In the present disclosure, the control server 30 calculates the electric wire adjustment amount, the electric wire required amount, and the future required amount, but the present invention is not limited to this.
For example, the instruction server 40 may have the function of the control server 30. In other words, the instruction server 40 may have functions such as an acquisition unit 301, a storage unit 302, and an electric wire calculation unit 303. Then, the instruction server 40 may calculate the electric wire adjustment amount, the electric wire required amount, and the future required amount, and transmit the information indicating the calculated result to the control server 30.

Further, in the present disclosure, it has been described that the supply amount calculation unit 305 of the control server 30 limits the adjustment of the apparent power in the HPS 21 by the HPS 21. Here, limiting the adjustment of the apparent power in the HPS 21 by the HPS 21 also includes not allowing the HPS 21 to adjust the apparent power in the HPS 21.

Further, in the present disclosure, it has been described that the instruction information includes, but is not limited to, the latest value information, the previous value information, and the predicted value information. The instruction server 40 may transmit the latest value information, the previous value information, and the predicted value information to the control server 30 separately from the instruction for adjusting the apparent power in the adjustment target electric wire. Further, the instruction server 40 may transmit the free capacity information to the control server 30 separately from the instruction for adjusting the apparent power in the adjustment target electric wire.

Further, in the present disclosure, it has been described that the instruction server 40 and the control server 30 are provided in the power system 10, but the present invention is not limited to this. One server provided in the power system 10 may have the functions of the instruction server 40 and the control server 30. Then, this one server may specify the electric wire that needs to adjust the apparent power and give an instruction to the HPS 21 for adjusting the apparent power in the electric wire.

Further, in the present disclosure, it has been described that the control server 30 instructs the HPS 21 to adjust the apparent power in the electric wire, but the present invention is not limited to this. Another server different from the control server 30 may receive an instruction for adjusting the apparent power in the electric wire from the control server 30 and send the received instruction to the HPS 21.

Further, in the present disclosure, an example in which parameters such as electric wire adjustment amount, electric wire required amount, HPS required amount, electric wire "free capacity", future required amount, electric wire supply amount, total required amount, and HPS adjustment amount are current values. As explained, but not limited to this. Each parameter may be any of the above-mentioned parameters as a parameter relating to apparent power.

Further, in the present disclosure, the control server 30 is configured to control the operation of the HPS 21, but the present invention is not limited to this.
For example, the HPS 21 may have the function of the control server 30. In other words, the HPS 21 may be provided with a CPU 31 (see FIG. 2), a ROM 32, a RAM 33, a communication device 34, and a storage device 35 for realizing various functions. Further, the HPS 21 may have functions such as an acquisition unit 301, a storage unit 302, an electric wire calculation unit 303, an HPS calculation unit 304, a supply amount calculation unit 305, and a transmission unit 306 of the control server 30. Then, the HPS 21 may acquire the instruction information. Further, the HPS 21 may calculate the electric wire supply amount based on the acquired instruction information and supply the calculated current of the electric wire supply amount to the adjustment target electric wire. Further, the HPS 21 may limit the adjustment of the apparent power in the HPS 21 by the HPS 21.

Here, each of the embodiments described above can be grasped as follows.
The supply amount calculation unit 305 of the power control system 1 of the present embodiment causes the HPS 21 to generate a current used for adjusting the apparent power in the adjustment target electric wire based on the instruction information acquired by the acquisition unit 301.
In this case, as compared with the case where the apparent power of the adjusted electric wire is adjusted without supplying a current to the adjusted electric wire, the influence of the state on the consumer side distribution line 19 on the adjustment of the apparent power of the adjusted electric wire is less likely to occur. can do.

Further, the supply amount calculation unit 305 limits the adjustment of the apparent power in the HPS 21 by the HPS 21 when the HPS 21 generates the current used for adjusting the apparent power in the electric wire to be adjusted.
In this case, since the restriction on the adjustment of the apparent power of the wire to be adjusted by HPS21 is relaxed, the adjustment of the apparent power of the wire to be adjusted is not as good as the case where the adjustment of the apparent power by HPS21 of HPS21 is unconditionally performed. It can be suppressed to be sufficient.

Further, the supply amount calculation unit 305 limits the adjustment of the apparent power in the HPS 21 by the HPS 21 based on the free capacity information.
In this case, it is suppressed that a current exceeding the capacity of the adjustment target electric wire flows to the adjustment target electric wire. Therefore, it is possible to suppress the occurrence of a short circuit or ignition in the adjustment target electric wire as compared with the case where the apparent power in the HPS 21 is adjusted regardless of the capacity of the adjustment target electric wire.

Further, in the present embodiment, the supply amount calculation unit 305 limits the adjustment of the apparent power in the HPS 21 by the HPS 21 based on the current capacity information.
In this case, the load generated on the HPS 21 is reduced. Therefore, it is possible to suppress the occurrence of a defect in the HPS 21 as compared with the case where the apparent power in the HPS 21 is adjusted regardless of the ability of the HPS 21 to generate an electric current.

Further, in the present embodiment, the electric wire calculation unit 303 and the supply amount calculation unit 305 cause the HPS 21 to generate a current larger than the required electric wire amount.
In this case, even if the apparent power of the adjustment target electric wire changes with the passage of time, the apparent power of the adjustment target electric wire is likely to be improved. Therefore, the adjustment of the apparent power in the adjusted electric wire is not possible due to the change in the apparent power in the adjusted electric wire, as compared with the case where the current less than the amount required for improving the apparent power in the adjusted electric wire is generated in the HPS21. It can be suppressed to be sufficient.

Further, in the present embodiment, the electric wire calculation unit 303 and the supply amount calculation unit 305 cause the HPS 21 to generate a current larger than the required electric wire amount when the instruction information satisfies a predetermined condition.
In this case, compared to the case where the HPS 21 generates a current less than or equal to the amount required for improving the apparent power of the adjusted electric wire regardless of the instruction information, the adjusted electric wire is caused by the change of the apparent electric power of the adjusted electric wire. It is possible to prevent insufficient adjustment of apparent power.

Further, in the present embodiment, the predetermined conditions are defined for the future apparent power of the electric wire to be adjusted.
In this case, it is caused by the change in the apparent power of the adjusted wire as compared with the case where the HPS21 generates a current less than the amount required for improving the apparent power of the adjusted electric wire regardless of the future apparent power of the adjusted electric wire. Therefore, it is possible to prevent insufficient adjustment of the apparent power in the wire to be adjusted.

From another point of view, the HPS 21 of the present embodiment adjusts the apparent power in the adjustment target electric wire based on the instruction information acquired by the acquisition means.
In this case, as compared with the case where the apparent power of the adjusted electric wire is adjusted without supplying a current to the adjusted electric wire, the influence of the state on the consumer side distribution line 19 on the adjustment of the apparent power of the adjusted electric wire is less likely to occur. can do.

From another point of view, the supply amount calculation unit 305 of the control server 30 of the present embodiment sets the current used for adjusting the apparent power of the adjustment target electric wire to the HPS21 based on the instruction information acquired by the acquisition unit 301. To generate.
In this case, as compared with the case where the apparent power of the adjusted electric wire is adjusted without supplying a current to the adjusted electric wire, the influence of the state on the consumer side distribution line 19 on the adjustment of the apparent power of the adjusted electric wire is less likely to occur. can do.

Further, each configuration described above is not limited to the above embodiment, and can be changed without departing from the spirit. In other words, it is understood that various changes in form and details are possible without departing from the spirit and scope of the claims.
The configuration is not limited to the configuration described above, and a part of each configuration described above may be omitted, or other functions may be added to each configuration described above.

1 ... Power control system, 10 ... Power system, 10S ... Wire sensor, 11 ... Power plant, 14 ... Supply side distribution line, 16 ... Receiving side substation, 17 ... Receiving side distribution line, 19 ... Consumer side distribution line , 20 ... Power consumption facility, 21S ... HPS sensor, 21 ... HPS, 30 ... Control server, 40 ... Instruction server, 211 ... Adjustment unit, 212 ... Power conversion device, 213 ... Power receiving path, 214 ... AF

Claims (9)

Equipment that receives power from the power distribution system wires via a distribution transformer, and
An acquisition means for acquiring electric wire information related to the electric wire, and
A control means for causing the device to generate a current used for adjusting the apparent power of the electric wire based on the electric wire information acquired by the acquisition means.
Equipped with a power control system. The device can adjust the apparent power in its own device,
The power control according to claim 1, wherein the control means limits the adjustment of the apparent power in the device by the device when the device generates a current used for adjusting the apparent power in the electric wire. system. The acquisition means acquires capacity information regarding the capacity of the electric wire, and obtains the capacity information.
The power control system according to claim 2, wherein the control means limits the limit based on the capacity information. The acquisition means acquires capability information regarding the ability of the device to generate an electric current.
The power control system according to claim 2, wherein the control means limits the limit based on the capability information. The power control system according to claim 1, wherein the control means causes the device to generate a current larger than a current required for improving the apparent power in the electric wire. The power control system according to claim 5, wherein the control means causes the device to generate a current larger than the current required for the improvement when the electric wire information satisfies a predetermined condition. The wire information includes information about the wire in the future.
The power control system according to claim 6, wherein the conditions are defined for future apparent power in the electric wire. It is a device that receives power from the electric wires of the distribution system via a distribution transformer.
An acquisition means for acquiring electric wire information related to the electric wire, and
An adjusting means for adjusting the apparent power of the electric wire based on the electric wire information acquired by the acquiring means, and an adjusting means.
Equipped with equipment. An acquisition method for acquiring electric wire information related to electric wires in the distribution system,
Based on the electric wire information acquired by the acquisition means, a control means for generating a current used for adjusting the apparent power of the electric wire to a device receiving electric power from the electric wire via a distribution transformer.
Information processing device equipped with.

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