Power Control Systems and Equipment

Abstract

To make a device adjust a plurality of adjustment targets according to adjustment contents suited to the device, compared with a case where the device adjusts a plurality of adjustment targets regardless of an index relating to the power capacity of the device. [Solution] A power control system that causes equipment to adjust multiple adjustment targets related to apparent power in an electric wire, the power control system comprising: a power information acquisition means for acquiring power information related to the apparent power in the electric wire; a capacity information acquisition means for acquiring capacity information related to the power capacity of the equipment; and a determination means for determining the relationship of adjustment by the equipment for each of the multiple adjustment targets in the electric wire based on the power information and the capacity information.

Description

[Technical field]

[0001] The present disclosure relates to power control systems and devices. [Background technology]

[0002] Patent Document 1 describes an active filter characterized by being configured with a fundamental wave reactive current control means that adjusts a fundamental wave reactive current command value based on a differential voltage obtained by a voltage value calculation means so that the amplitude becomes a target value, and a current value calculation means that calculates a harmonic compensation current value from a harmonic suppression current value and a fundamental wave reactive current command value. Patent Document 2 focuses on the fact that the occurrence of harmonics and the timing when voltage fluctuations become noticeable are not simultaneous, and describes a method of switching the switching frequency for power conversion between when harmonics are suppressed and when voltage is stabilized. Patent Document 3 describes a plurality of current control units that are provided for each of a plurality of current output circuits and control the output current of the corresponding current output circuit based on the corresponding output current command value. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-336870 A [Patent Document 2] JP 2006-223023 A [Patent Document 3] JP 2018-207662 A Summary of the Invention [Problem to be solved by the invention]

[0004] In some cases, the apparent power in an electric wire is adjusted by a device. In cases where there are multiple targets for adjustment related to the apparent power in the electric wire, if the electric wire is adjusted without determining the relationship of adjustment by the device for each of the multiple adjustment targets, the content of the adjustment of the electric wire may not be appropriate. The present disclosure relates to In comparison with a case where the electric wire is adjusted without determining the relationship of adjustment by the equipment for each of the plurality of adjustment objects, the plurality of adjustment objects are adjusted by the equipment with more suitable adjustment contents. The purpose of this document is to: [Means for solving the problem]

[0005] The present disclosure The control device includes a determination means for determining a relationship of adjustment by an appliance for each of a plurality of adjustment targets related to apparent power in the electric wire, and the determination means determines the relationship based on power information related to the apparent power in the electric wire. In this case, the device can adjust the plurality of adjustment targets with more appropriate adjustment content compared to a case where the electric wire is adjusted without determining a relationship of adjustment by an appliance for each of the plurality of adjustment targets. Here, the determining unit may determine the relationship of adjustment for at least one device identified from device identification information that identifies a device associated with electric wire identification information that identifies the electric wire. In this case, a plurality of adjustment targets can be adjusted by a device that is previously associated with an electric wire that is an adjustment target. [Brief description of the drawings]

[0006] [Figure 1] 1 is a diagram illustrating an example of a power control system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing the hardware configuration of a control server and a management server. [Diagram 3] FIG. 2 is a diagram showing the functional configuration of an HPS. [Figure 4] FIG. 2 is a diagram showing a functional configuration of a control server. [Diagram 5] FIG. 13 is a diagram showing a wire management table. [Figure 6] FIG. 13 illustrates a relationship management table. [Figure 7] FIG. 13 illustrates an HPS management table. [Figure 8] 11 is a flowchart showing a flow of an adjustment amount calculation process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment 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 that controls apparent power. The power control system 1 includes a power grid 10, a plurality of power consuming facilities 20, a control server 30, and a management server 40.

[0008] The power system 10 is a system provided with facilities for supplying power to power consumers. 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, a receiving-side distribution line 17, a pole transformer 18, and a consumer-side distribution line 19.

[0009] The power plant 11 is a facility that generates 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, and a geothermal power plant. The power transmission line 12 is a line through which current that constitutes the power generated by the power plant 11 flows. The power transmission line 12 is installed from the power plant 11 to a supply-side substation 13.

[0010] The supply-side substation 13 is a facility that converts voltage. The supply-side substation 13 is provided on the power supply side of the power-receiving substation 16. In this embodiment, the facility located closest to the power supply side is the power plant 11. Also, the facility located closest to the power receiving side is the power consuming facility 20. Supply-side substation 13 converts the voltage supplied through transmission line 12. Examples of supply-side substation 13 include 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, a substation that converts a voltage of 66,000 V to 22,000 V, and the like.

[0011] Supply-side distribution line 14, which is an example of an electric path, is a line through which a current flows when a converted voltage is applied to supply-side substation 13. Supply-side distribution line 14 is provided from supply-side substation 13 to receiving-side substation 16. Supply-side distribution line 14 is provided on the power supply side of 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. If the detected voltage is not within a 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. An example of the receiving-side substation 16 is a substation that converts the supplied voltage to 6600V.

[0012] The receiving-side distribution line 17, which is an example of an electric path, is a line through which a current flows when a converted voltage is applied to the receiving-side substation 16. The receiving-side distribution line 17 is installed from the receiving-side substation 16 to a pole transformer 18. Pole transformer 18 is a facility that converts the voltage supplied through receiving-side distribution line 17. Examples of 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.

[0013] The consumer-side distribution line 19 is a line through which a current flows when the voltage converted by the pole transformer 18 is applied. A plurality of consumer-side distribution lines 19 are provided in the power system 10. More specifically, a consumer-side distribution line 19 is provided for each power consumption 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 power system 10 is a system provided outside the power consumption facility 20, and is a system for distributing generated power to power consumers.

[0014] Further, the power system 10 is provided with a plurality of electric wire sensors 10S. The electric wire sensors 10S are connected to the supply-side distribution line 14. More specifically, the electric wire sensors 10S are connected to a portion of the supply-side distribution line 14 that is closer to the power supply side than the SVR 15. Further, the electric wire sensors 10S are each connected to each of the receiving-side distribution lines 17. In other words, the electric wire sensors 10S are provided for each of the supply-side distribution line 14 and the receiving-side distribution line 17.

[0015] The electric wire sensor 10S detects parameters related to apparent power in the supply-side distribution line 14 or the receiving-side distribution line 17 connected thereto. The parameters related to apparent power are parameters that affect the apparent power. Examples of the parameters related to apparent power include apparent power, reactive power, reactive voltage, harmonic voltage, current, power factor, and the amount of apparent power and the amount of reactive power in a predetermined period. The current as the parameter related to apparent power includes harmonic current. Examples of the harmonic voltage and harmonic current include high-order harmonic voltages and high-order harmonic currents. Examples of the high-order harmonic include orders of harmonics higher than a predetermined order. Examples of the predetermined order are the 13th order, for example. Examples of the harmonic voltage and harmonic current include low-order harmonic voltages and low-order harmonic currents. Examples of the low-order harmonic include orders equal to or lower than a predetermined order.

[0016] Moreover, parameters related to apparent power include, for example, the total harmonic distortion (THD) of current and the THD of voltage. Here, the THD of current is calculated from the following formula (1). Moreover, the THD of voltage is calculated from the following formula (2). TIFF0007670978000001.tif16160TIFF0007670978000002.tif16160

[0017] In the above formula (1), I 1 is the fundamental current. Also, I n is the nth harmonic current. In the above formula (2), V 1 is the fundamental voltage. Also, V n is the nth harmonic voltage. The electric wire sensor 10S detects the above parameters related to apparent power, for example, at predetermined time intervals. The parameters related to the apparent power in the electric wire may be referred to as power information hereinafter. The power information may be information indicating the parameters related to the apparent power in the electric wire. The power information may also be information indicating the waveform of the current in the electric wire. The predetermined time may be any time, for example, one hour. When the electric wire sensor 10S detects the power information, it transmits the detected power information to the management server 40 together with electric wire identification information for identifying the electric wire to be detected.

[0018] 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. The power system 10 may be provided with two or more supply-side substations 13 that convert the same or different voltages. In addition, in the illustrated example, one receiving substation 16 is shown in the power system 10, but the number of receiving substations 16 is not limited to one shown in the figure. The power system 10 may be provided with two or more receiving substations 16 that convert the same or different voltages. Furthermore, the number of supply-side distribution lines 14 and receiving-side distribution lines 17 is not limited to the example shown in the figure. The power system 10 may be provided with more supply-side distribution lines 14 and receiving-side distribution lines 17 than those 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.

[0019] The power consumption facility 20 is a facility that receives and consumes the power supplied from the power plant 11 through the customer-side distribution line 19. Each power consumption facility 20 includes a power receiving equipment 201, an in-facility power line 202, and an in-facility power line sensor 20S. The power receiving equipment 201, which is an example of an electric circuit, receives power supplied from the power system 10. The power receiving equipment 201 also converts the voltage of the received power into a voltage used by equipment in the power consumption facility 20. Examples of the power receiving equipment 201 include a switchboard and a distribution board. The in-facility electric wire 202, which is an example of an electric path, is a line through which a current flows that constitutes the power received by the power receiving facility 201. The in-facility electric wire 202 is provided from the power receiving facility 201 to each device that consumes power in the power consuming facility 20. In this embodiment, when the supply side distribution line 14, the receiving side distribution line 17, and the in-facility electric wire 202 are described without making any particular distinction therebetween, they may be simply referred to as "electric wires."

[0020] The in-facility electric wire sensor 20S detects power information on the apparent power in the in-facility electric wire 202, for example, at predetermined time intervals. The predetermined time may be any time, for example, one hour. Then, when the in-facility electric wire sensor 20S detects the power information, it transmits the detected power information to the control server 30 together with electric wire identification information that identifies the in-facility electric wire 202 that is the detection target. The power information detected by the electric wire sensor 10S and the in-facility electric wire sensor 20S is not limited to one type of parameter related to apparent power. The electric wire sensor 10S and the in-facility electric wire sensor 20S may detect multiple types of parameters among the above-mentioned parameters. Then, the power information indicating each of the multiple types of detected parameters may be transmitted to the control server 30 and the management server 40. Furthermore, the electric wire sensor 10S and the in-facility electric wire sensor 20S may be provided for each type of parameter to be detected.

[0021] Each power consuming facility 20 is provided with a plurality of heat pump systems (HPS) 21 and a load 22. The HPS 21, as an example of a device, adjusts temperature and humidity using power received from the power grid 10. Targets of adjustment by the HPS 21 include the temperature and humidity of the space within the power consuming facility 20. Also, targets of adjustment by the HPS 21 include the temperature of liquid provided in the power consuming facility 20.

[0022] Moreover, the HPS 21 of this embodiment can supply a current. The HPS 21 adjusts the above-mentioned parameters related to the apparent power in the HPS 21 by supplying a current. Furthermore, the HPS 21 can supply a current to an electric wire. The HPS 21 adjusts the above-mentioned parameters related to the apparent power in the electric wire by supplying a current to the electric wire.

[0023] An example of a method for adjusting parameters related to apparent power in an electric wire by the HPS 21 will be described. When a harmonic current of a specific order is generated in an electric wire, the HPS 21 reduces the harmonic current of the specific order in the electric wire by supplying a current of a phase that cancels the harmonic current of the specific order to the electric wire. Another example of a method for adjusting parameters related to apparent power in an electric wire by the HPS 21 will be described. When reactive power is generated in the electric wire, the HPS 21 supplies a current to the electric wire, thereby reducing the reactive power in the electric wire. In addition, the power factor in the electric wire is improved as the reactive power in the electric wire is reduced. In this manner, in this embodiment, the HPS 21 is used to adjust the parameters related to the apparent power in the electric wire. The HPS 21 adjusts the parameters related to the apparent power in the HPS 21 by a method similar to that for adjusting the electric wire. Here, the apparent power also changes as the parameters related to the apparent power change. Therefore, the adjustment of the above parameters related to the apparent power can be broadly understood as an adjustment of the apparent power. Hereinafter, the parameters related to the apparent power that are the subject of adjustment may be collectively referred to as "apparent power."

[0024] Examples of the HPS 21 include a system for adjusting temperature and humidity, etc. More specifically, examples of the HPS 21 include devices used in HVAC (Heating Ventilation and Air Conditioning) systems, such as air conditioners, showcases that adjust the internal temperature, refrigerators, freezers, water heaters, etc. When the HPS 21 is instructed by the control server 30 to adjust the apparent power in the electric line, the HPS 21 adjusts the apparent power in the electric line by supplying a current to the electric line in accordance with the received instruction. The load 22 receives and consumes the electric power supplied from the power plant 11 via the consumer-side distribution line 19 .

[0025] Furthermore, in this embodiment, an HPS sensor 21S is provided in each power consuming facility 20. The HPS sensor 21S detects the power, the amount of power, or the amount of power at a predetermined time supplied from the HPS 21. Note that when describing power, the amount of power, and the amount of power at a predetermined time without making any particular distinction, they may be collectively referred to simply as "power."

[0026] The HPS sensor 21S detects the power being supplied from the HPS 21, for example, at predetermined time intervals. The predetermined time may be any time, but is, for example, one hour. Furthermore, information detected by the HPS sensor 21S as information indicating the power being supplied from the HPS 21 may be referred to as supply information hereinafter. When the HPS sensor 21S detects supply information, it transmits the detected supply information to the control server 30 together with HPS identification information that identifies the HPS 21 that is the subject of detection.

[0027] In the illustrated example, one power consuming facility 20 is provided for each consumer-side distribution line 19, but this is not limited to the example. A plurality of power consuming facilities 20 may be provided for each consumer-side distribution line 19. Furthermore, the number of HPSs 21 and the number of loads 22 provided in the power consuming facility 20 are not limited to the illustrated example. The power consuming facility 20 may be provided with more HPSs 21 and loads 22 than those illustrated. Furthermore, the power consuming facility 20 may be provided without an HPS 21 or load 22. Furthermore, the power consuming facility 20 may be provided with equipment other than the HPS 21.

[0028] 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 to adjust the apparent power in the electric line. When the control server 30 acquires power information from the management server 40, it determines whether or not to adjust the apparent power in the electric line based on the acquired power information. Then, when it is determined that the apparent power in the electric line is to be adjusted, the control server 30 causes the HPS 21 to adjust the apparent power in the electric line that is the target of adjustment.

[0029] In the present embodiment, a plurality of adjustment targets related to the apparent power in the electric wire are adjusted by the HPS 21. The adjustment targets related to the apparent power in the electric wire are parameters that are determined as adjustment targets among the above parameters related to the apparent power in the electric wire. The control server 30 controls the adjustment by the HPS 21 of a plurality of adjustment targets related to apparent power in the power lines, based on an index related to the power capacity of the HPS 21. The control server 30 also controls the adjustment by the HPS 21 of the plurality of adjustment targets, based on the relationship between each of the plurality of adjustment targets.

[0030] The management server 40 is a server device that manages power information. When the management server 40 acquires power information from the electric wire sensor 10S, the management server 40 transmits the acquired power information to the control server 30 together with electric wire identification information that identifies the electric wire that is the subject of the power information.

[0031] The management server 40 and the control server 30 are realized, for example, by a computer. The management server 40 and the control server 30 may be configured by a single computer, or may be realized by distributed processing using multiple computers. The management server 40 and the control server 30 may also be realized on virtual hardware provided by cloud computing. In the following description, when the management server 40 and the control server 30 are described without making any particular distinction between them, they may be simply referred to as "servers."

[0032] In this embodiment, the control server 30, each device provided in each power consuming facility 20, and the management server 40 are connected via a network (not shown). The management server 40 and each power wire sensor 10S are also connected via a network (not shown). These networks may be any network capable of transmitting and receiving data. The communication lines used for transmitting and receiving data may be wired or wireless, or may be power line communication (PLC). The configuration may also be such that the communication destination is connected via multiple networks or communication lines.

[0033] Furthermore, the number of control servers 30 and management servers 40 is not limited to the example shown in the figure. Two or more control servers 30 and two or more management servers 40 may be provided in the power control system 1. Furthermore, a control server 30 may be provided for each power consuming facility 20, for example.

[0034] FIG. 2 is a diagram showing the hardware configuration of the control server 30 and the management server 40. As shown in FIG. The server is provided with a CPU 31, a ROM (Read Only Memory) 32, and a RAM (Random Access Memory) 33. The server is also provided with a storage device 35, which is configured with a hard disk device or the like and stores information. The server is also provided with a communication device 34 (communication I / F) that communicates with the outside. In addition, the server is provided with input devices such as a keyboard and a mouse used for inputting information, and a display device such as a liquid crystal display.

[0035] The ROM 32 and the storage device 35 store programs executed by the CPU 31. The CPU 31 reads out the programs stored in the ROM 32 or the storage device 35, and executes the programs using the RAM 33 as a working area. The CPU 31 executes programs stored in the ROM 32 and the storage device 35 to realize each of the functional units described below.

[0036] Here, the program executed by the CPU 31 can be provided to the server in a state where it 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.), a magneto-optical recording medium, a semiconductor memory, etc. Also, the program executed by the CPU 31 may be provided to the server using a communication means such as the Internet.

[0037] FIG. 3 is a diagram showing the functional configuration of the HPS21. The HPS 21 includes an adjustment unit 211, a power conversion device 212, a power receiving path 213, and an active filter (AF) 214. The adjustment unit 211 adjusts the temperature and humidity. The adjustment unit 211 is provided with a motor (not shown) that operates using the received power. The adjustment unit 211 is also provided with a heat exchanger (not shown), through which air and liquid in the power consuming facility 20 exchange heat.

[0038] The power conversion device 212 has an inverter (not shown) and a converter (not shown). The power conversion device 212 converts the power received from the power system 10 into power having a specific voltage and a specific frequency using the inverter and the converter. The specific voltage and specific frequency are the voltage and frequency required for the operation of a motor provided in the adjustment unit 211. The power conversion device 212 supplies the converted power to the adjustment unit 211. The power receiving path 213 is a path through which the power received by the power electronics device 212 in the HPS 21 passes.

[0039] The AF 214 is electrically connected in parallel to the power receiving path 213 of the power electronics 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 electronics device 212. The AF 214 also adjusts the apparent power in the wire by supplying a current to the wire. The power detected by the HPS sensor 21S (see FIG. 1) is the power supplied from the AF 214.

[0040] Although the functional configuration of the HPS 21 is shown in FIG. 3, the device used to adjust the apparent power in the electric wire is not limited to the HPS 21. The device used for adjusting the apparent power in the electric wire may be any device capable of supplying a current to the electric wire. Examples of devices capable of supplying a current to the electric wire include devices having a power conversion device. More specifically, examples of devices capable of supplying a current to the electric wire include devices 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. Examples of devices having a power conversion device include systems that generate renewable energy, such as solar power generation systems and wind power generation systems.

[0041] FIG. 4 is a diagram showing the functional configuration of the control server 30. As shown in FIG. The control server 30 includes an acquisition unit 301 , a storage unit 302 , a target determination unit 303 , a required amount calculation unit 304 , an extraction unit 305 , a possible amount calculation unit 306 , an adjustment amount calculation unit 307 , and a transmission unit 308 .

[0042] The acquisition unit 301, which is an example of a power information acquisition means, acquires information transmitted to the control server 30 and information input to the control server 30. For example, the acquisition unit 301 acquires power information transmitted to the control server 30 from the management server 40 or the in-facility electric wire sensor 20S. The acquisition unit 301 also acquires supply information transmitted from the HPS sensor 21S. The acquisition unit 301 also acquires information on the capacity of power that the AF214 of each HPS21 can supply from each HPS21. The capacity of power that the AF214 can supply is the maximum power that the AF214 can supply. The information on the capacity of power may be referred to as capacity information below. Therefore, the acquisition unit 301 may also be regarded as a capacity information acquisition means that acquires capacity information. An example of the capacity information is information indicating the capacity of power that the AF214 can supply. The capacity information may be acquired by the acquisition unit 301 by a user of the power control system 1 inputting capacity information related to each HPS21 to the control server 30. The information acquired by the acquisition unit 301 is stored in the storage unit 302 . The storage unit 302, which is an example of a storage means, stores information. The information stored in the storage unit 302 will be described in detail later.

[0043] The target determination unit 303 determines a target to be adjusted by the HPS 21. More specifically, the target determination unit 303 determines a target electric wire to be adjusted by the HPS 21. Based on the power information acquired by the acquisition unit 301, the target determination unit 303 determines whether or not it is necessary to adjust the apparent power in the electric wire related to the power information. Note that the target electric wire determined by the target determination unit 303 to be required to adjust the apparent power may be referred to as the adjustment target electric wire hereinafter. In addition, the target determination unit 303 determines which parameter related to the apparent power of the adjustment target electric wire is to be adjusted by the HPS 21. In other words, the target determination unit 303 specifies the type of the target that needs to be adjusted in the adjustment target electric wire. Based on the power information related to the adjustment target electric wire, the target determination unit 303 determines the parameter related to the apparent power of the adjustment target electric wire that is to be adjusted by the HPS 21. Among the parameters related to the apparent power in the electric wire to be adjusted, the parameter determined by the target determining unit 303 as the parameter to be adjusted may be referred to as the adjustment target hereinafter.

[0044] The required amount calculation unit 304 calculates the power that needs to be supplied to the electric wire that is the adjustment target in order to improve the adjustment target. Hereinafter, the power that needs to be supplied to the electric wire that is the adjustment target in order to improve the adjustment target may be referred to as the adjustment required amount. The required amount calculation unit 304 calculates the adjustment required amount based on the power information related to the electric wire that is the adjustment target. Furthermore, when there are multiple adjustment targets, the required amount calculation unit 304 calculates the adjustment required amount for each adjustment target.

[0045] The extraction unit 305 extracts the HPS 21 to be used for adjusting the electric cable to be adjusted. The extraction unit 305 extracts, from among the HPSs 21 provided in the power control system 1, the HPS 21 that receives power through the electric cable to be adjusted, as the HPS 21 to be used for adjusting the electric cable to be adjusted.

[0046] The possible amount calculation unit 306 calculates the power that can be supplied by the AF 214 of the HPS 21 to adjust the apparent power in the electric wire. Hereinafter, the power that can be supplied by the AF 214 of the HPS 21 to adjust the apparent power in the electric wire may be referred to as the adjustable amount. The possible amount calculation unit 306 calculates the adjustable amount based on the capacity information and supply information related to the HPS 21.

[0047] The adjustment amount calculation unit 307, which is an example of a determination means, calculates the power to be supplied to the adjustment target electric wire in order to adjust the adjustment target. The power to be supplied to the adjustment target electric wire in order to adjust the adjustment target may be referred to as an adjustment amount hereinafter. Furthermore, when there are multiple adjustment targets, the adjustment amount calculation unit 307 calculates an adjustment amount for each of the multiple adjustment targets. In this case, the adjustment amount calculation unit 307 calculates an adjustment amount for each adjustment target based on the adjustment required amount calculated by the required amount calculation unit 304, the adjustment possible amount calculated by the possible amount calculation unit 306, and the relationship between each of the multiple adjustment targets. Furthermore, the adjustment amount calculation unit 307 calculates the power to be supplied from the AF 214 in order to adjust the adjustment target based on the calculated adjustment amount. The power to be supplied from the AF 214 in order to adjust the adjustment target may be referred to as a supply amount hereinafter.

[0048] The transmission unit 308 transmits information indicating the supply amount calculated by the adjustment amount calculation unit 307 to each HPS 21. More specifically, the transmission unit 308 transmits the information indicating the supply amount, together with electric wire identification information identifying the electric wire to be adjusted that is the supply destination of electric power at this supply amount, to the HPS 21 to which electric power is to be supplied at this supply amount.

[0049] 5 is a diagram showing an electric wire management table. The electric wire management table is a table for managing electric wires. The electric wire management table is stored in the storage unit 302 of the control server 30. 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 the supply-side distribution line 14. Furthermore, "17" shown in "electric wire" means that it is the receiving-side distribution line 17. Furthermore, "A" and "B" added together with "17" are information for identifying which of the multiple receiving-side distribution lines 17 it is. Furthermore, "202" shown in "electric wire" means that it is an in-facility electric wire 202. Furthermore, "A" to "F" added together with "202" are information for identifying which of the multiple in-facility electric wires 202 it is.

[0050] In the electric wire management table, the electric power information detected by the electric wire sensor 10S or the in-facility electric wire sensor 20S is shown in the "electric power information". When the latest electric power information is acquired by the acquisition unit 301, this electric power information is overwritten on the "electric power information" associated with the target "electric wire".

[0051] In the electric wire management table, the "threshold" indicates a threshold set for the apparent power in the "electric wire". This "threshold" is a threshold used by the target determination unit 303 to determine whether or not the adjustment of the apparent power in the electric wire is necessary. The "threshold" may be set to an upper limit value of the "power information" at which the target determination unit 303 determines that the adjustment of the apparent power in the "electric wire" is unnecessary, or a value higher than the upper limit value. The "threshold" may be set to a lower limit value of the "power information" at which the target determination unit 303 determines that the adjustment of the apparent power in the "electric wire" is unnecessary, or a value lower than the lower limit value. The "threshold" may be set to a range of values ​​of the "power information" at which the target determination unit 303 determines that the adjustment of the apparent power in the "electric wire" is unnecessary. The "threshold" may be set to a range of values ​​of the "power information" at which the target determination unit 303 determines that the adjustment of the apparent power in the "electric wire" is necessary. The "threshold" may be set to a threshold value for each of the above parameters related to apparent power.

[0052] In this embodiment, the "thresholds" include at least a threshold set for low-order harmonic currents, a threshold set for high-order harmonic currents, and a threshold set for power factor. In addition, as thresholds set for low-order harmonic currents, a threshold set for the fifth-order harmonic current, a threshold set for the seventh-order harmonic current, and a threshold set for harmonic currents of lower orders other than the fifth and seventh orders are provided.

[0053] An example of the contents of the electric wire management table will be described below. The receiving side electric wire 17 identified by "17A" of "electric wire" has "P2" as "power information" and "T2" as "threshold value".

[0054] 6 is a diagram showing a relationship management table. The relationship management table is a table for managing the relationships of adjustments made by the HPS 21 for a plurality of adjustment targets. The relationship management table is stored in the storage unit 302 of the control server 30. In the relationship management table, the type of electric wire is indicated in "electric wire". The "14" indicated in "electric wire" means that it is the supply side distribution line 14. Furthermore, the "17" indicated in "electric wire" means that it is the receiving side distribution line 17. Furthermore, the "202" indicated in "electric wire" means that it is the in-facility electric wire 202.

[0055] In the relationship management table, the type of adjustment target is shown in "Adjustment target". "Low-order harmonics" shown in "Adjustment target" means that the adjustment target is a low-order harmonic current. Also, "Power factor" shown in "Adjustment target" means that the adjustment target is the power factor. In addition, "high-order harmonics" is shown as an "adjustment target" associated with the "electric wire" in "202." "High-order harmonics" means that the adjustment target is a high-order harmonic current.

[0056] In addition, for the "low-order harmonics" associated with the "electric wires" of "14" and "17", "orders requiring adjustment" and "other orders" are shown. The "orders requiring adjustment" are orders that are determined as requiring higher adjustment than the "other orders" among the orders of low-order harmonic currents. In this embodiment, the orders requiring adjustment are the 5th and 7th orders. The "other orders" are orders that are different from the "orders requiring adjustment" among the orders of low-order harmonic currents. Note that, as the "order requiring adjustment", an order other than the fifth and seventh orders may be defined as a low-order harmonic current order.

[0057] Additionally, the "power factor" associated with the "electric wires" "14" and "17" shows a "power factor requiring adjustment" and an "other power factor." The "power factor requiring adjustment" is a power factor that is determined to require more adjustment than the "other power factors." In this embodiment, the power factor requiring adjustment is a power factor that is less than 75%. The "other power factor" is a power factor that is different from the "power factor requiring adjustment." Note that a power factor other than a power factor of less than 75% may be defined as the "power factor requiring adjustment."

[0058] In this embodiment, the "higher harmonics" are not set as the "adjustment target" for the "electric wires" "14" and "17." In this embodiment, harmonics may be generated due to equipment installed in the power consuming facility 20, such as the HPS 21. Furthermore, harmonics generated in the power consuming facility 20 may not only remain within the power consuming facility 20, but may also propagate to the power system 10. Here, higher-order harmonic currents are less likely to propagate from the power consuming facility 20 to the power system 10 than lower-order harmonic currents. Therefore, in this embodiment, higher-order harmonic currents are not defined as adjustment targets in the supply-side distribution line 14 and the receiving-side distribution line 17. On the other hand, in the power consuming facility 20, equipment installed in the power consuming facility 20 may be affected by higher-order harmonic currents. Therefore, higher-order harmonic currents in the intra-facility electric wire 202 are defined as adjustment targets. However, the "adjustment target" of the "electric wires" "14" and "17" may also be provided with "higher harmonics".

[0059] In this embodiment, the "low-order harmonics" that are the "subject of adjustment" of the "electric wire" of "202" are not provided with "orders requiring adjustment" and "other orders." Also, the "power factor" that is the "subject of adjustment" of the "electric wire" of "202" is not provided with "power factor requiring adjustment" and "other power factors." However, the "lower harmonics" that are the "subject of adjustment" of the "electric wire" of "202" may also be provided with "orders requiring adjustment" and "other orders." Also, the "power factor" that is the "subject of adjustment" of the "electric wire" of "202" may also be provided with "power factor requiring adjustment" and "other power factors."

[0060] In the relationship management table, the "priority" indicates the priority order for the adjustment of each "adjustment target." In this embodiment, among the "adjustment targets" shown in the relationship management table, the "adjustment target" with a smaller value in the "priority" is adjusted with higher priority.

[0061] In this embodiment, the "order requiring adjustment" of the "low-order harmonics" in the "wire" "14" is set as the "adjustment target" with a "priority" of "1". Also, the "power factor requiring adjustment" of the "power factor" in the "wire" "14" is set as the "adjustment target" with a "priority" of "2". Also, the "high-order harmonics" in the "wire" "202" is set as the "adjustment target" with a "priority" of "3". Also, the "other orders" of the "low-order harmonics" in the "wire" "14" is set as the "adjustment target" with a "priority" of "4". Also, the "other power factors" of the "power factor" in the "wire" "14" is set as the "adjustment target" with a "priority" of "5". Also, the "order requiring adjustment" of the "low-order harmonics" in the "wire" "17" is set as the "adjustment target" with a "priority" of "6". Additionally, the "power factor requiring adjustment" of the "power factor" in the "electric wire" "17" is defined as an "adjustment target" with a "priority" of "7". Additionally, the "other orders" of the "low harmonics" in the "electric wire" "17" are defined as an "adjustment target" with a "priority" of "8". Additionally, the "other power factors" of the "power factor" in the "electric wire" "17" are defined as an "adjustment target" with a "priority" of "9". Additionally, the "low harmonics" in the "electric wire" "202" is defined as an "adjustment target" with a "priority" of "10". Additionally, the "power factor" in the "electric wire" "202" is defined as an "adjustment target" with a "priority" of "11". Each “adjustment target” and each “priority” in the relationship management table is input by a user of the power control system 1.

[0062] The relationship of adjustment by the HPS 21 regarding the "adjustment target" shown in the relationship management table will be specifically described. It is determined that the “adjustment target” in the supply-side distribution line 14 is adjusted with priority over the “adjustment target” in the receiving-side distribution line 17 . Due to a problem occurring in the apparent power in the receiving-side distribution line 17, a problem may also occur in the apparent power in the supplying-side distribution line 14 connected to the receiving-side distribution line 17 where the problem occurs. Even in this case, when the apparent power in the supplying-side distribution line 14 is improved by adjustment using the HPS 21, not only the supplying-side distribution line 14 but also the apparent power in the receiving-side distribution line 17 where the problem occurs may be improved. As one example, as the power factor in the supplying-side distribution line 14 is improved, the power factor in the receiving-side distribution line 17 may also be improved. As another example, as the harmonic current of a specific order in the supplying-side distribution line 14 is reduced, the harmonic current of this specific order in the receiving-side distribution line 17 may also be reduced. In other words, when the apparent power in a specific adjustment target electric line is improved, the apparent power in the equipment installed on the power receiving side of this specific adjustment target electric line may also be improved. Therefore, in this embodiment, it is determined that the apparent power in the supply-side distribution line 14 is adjusted with priority over the apparent power in the receiving-side distribution line 17 .

[0063] In this embodiment, it is determined that, among the "adjustment targets" shown in the relationship management table, the low-order harmonic currents, which are "orders requiring adjustment" in the supply-side distribution line 14, are adjusted with the highest priority. In this embodiment, the harmonic current of the "order requiring adjustment" is defined as a harmonic current that is more likely to affect the power system 10 than harmonic currents of "other orders". Therefore, it is defined that the harmonic current of the "order requiring adjustment" is adjusted with the highest priority among the "adjustment targets".

[0064] In this embodiment, it is determined that harmonics in the power lines are adjusted with a higher priority than power factors in the power lines. For example, it is determined that "lower harmonics" of "other orders" in the supply-side power distribution line 14 are adjusted with a higher priority than "other power factors" in the supply-side power distribution line 14. For another example, it is determined that "lower harmonics" of "other orders" in the receiving-side power distribution line 17 are adjusted with a higher priority than "other power factors" in the receiving-side power distribution line 17. In this embodiment, it is determined that the harmonic current in the electric wire is more likely to affect the electric wire than the power factor in the electric wire, and therefore it is determined that the harmonics in the electric wire are to be adjusted with priority over the power factor in the electric wire.

[0065] In this embodiment, it is determined that the "high-order harmonics" in the in-facility electric wire 202 are adjusted with priority over the "low-order harmonics" and "power factor" in the receiving-side electric power distribution line 17. In other words, when the "high-order harmonics" in the in-facility electric wire 202 are adjusted, it is determined that the apparent power in the in-facility electric wire 202 is adjusted with priority over the apparent power in the receiving-side electric power distribution line 17. When the high-order harmonic current in the in-facility electric wire 202 is adjusted, the HPS 21 that can be used for this adjustment is limited to the HPS 21 in the power consuming facility 20 in which the in-facility electric wire 202 to be adjusted is installed. On the other hand, when the apparent power in the receiving-side distribution line 17 is adjusted, the HPS 21 that can be used for this adjustment are each HPS 21 in the multiple power consuming facilities 20 that receive power via the receiving-side distribution line 17 to be adjusted. In other words, the HPS 21 used for adjusting the high-order harmonic current in the in-facility electric wire 202 is difficult to be substituted for by another HPS 21 for adjustment. Therefore, in this embodiment, it is determined that the high-order harmonic current in the in-facility electric wire 202 is adjusted with priority over the apparent power in the receiving-side distribution line 17. In this way, the HPS21, which can be used to adjust high-order harmonic currents in the in-facility power lines 202, is used to adjust power lines such as the receiving distribution line 17, thereby preventing the high-order harmonic currents in the in-facility power lines 202 from becoming unadjusted.

[0066] In this embodiment, it is determined that the "low-order harmonics" and the "power factor" in the receiving-side distribution line 17 are adjusted with priority over the "low-order harmonics" and the "power factor" in the in-facility electric wire 202. In other words, it is determined that when the "high-order harmonics" in the in-facility electric wire 202 are not adjusted, the apparent power in the receiving-side distribution line 17 is adjusted with priority over the apparent power in the in-facility electric wire 202. As the low-order harmonic current and power factor in the receiving-side distribution line 17 are improved, the low-order harmonic current and power factor in the in-facility electric wire 202 of the power consuming facility 20 that receives power via the receiving-side distribution line 17 may also be improved. In this case, it becomes unnecessary to supply power from the HPS 21 to the in-facility electric wire 202 in order to adjust the low-order harmonic current and power factor in the in-facility electric wire 202. Therefore, in this embodiment, it is specified that when the high-order harmonic current in the in-facility electric wire 202 is not adjusted, the apparent power in the receiving-side distribution line 17 is adjusted with priority over the apparent power in the in-facility electric wire 202.

[0067] In this embodiment, it is determined that the "power factor requiring adjustment" in the power line is adjusted with priority over the "lower harmonics" of "other orders" in the power line. As one example, it is determined that the "power factor requiring adjustment" in the supply-side distribution line 14 is adjusted with priority over the "lower harmonics" of "other orders" in the supply-side distribution line 14. As another example, it is determined that the "power factor requiring adjustment" in the receiving-side distribution line 17 is adjusted with priority over the "lower harmonics" of "other orders" in the receiving-side distribution line 17. When the power factor in the electric wire decreases, the amount of power that needs to be sent to the electric wire to supply power from the power system 10 to the power consumption facility 20 increases. In this case, if power exceeding the capacity of the electric wire is sent to the electric wire, a malfunction may occur in the electric wire. Therefore, in this embodiment, when the power factor in the electric wire decreases to a "power factor requiring adjustment," it is specified that the "power factor requiring adjustment" in the electric wire is adjusted with priority over the "low-order harmonics" of "other orders" in the electric wire. In this case, malfunctions in the electric wire caused by a decrease in the power factor in the electric wire are suppressed.

[0068] 7 is a diagram showing the HPS management table. The HPS management table is a table for managing the HPS 21. The HPS management table is stored in storage unit 302 of control server 30. In the HPS management table, the HPS identification information is shown under "HPS." The letters "A" through "L" added to the "21" of "HPS" each indicate which of the multiple HPSs 21 it is.

[0069] In addition, in the HPS management table, the "transited electric line" indicates electric line identification information. The electric line identification information indicated in the "transited electric line" is the electric line identification information of the electric line that is passed through in the supply of electric power from the power system 10 to the "HPS". In addition, the "transited electric line" indicates a "receiving side distribution line" and an "intra-facility electric line". The "A" and "B" added together with the "17" of the "receiving side distribution line" are each information for identifying which of the multiple receiving side distribution lines 17 it is. In addition, the "A" through "F" added together with the "202" of the "intra-facility electric line" are each information for identifying which of the multiple intra-facility electric lines 202 it is. A user of the power control system 1 inputs, for each HPS 21, the wire identification information of the wires passed through in the supply of power to the HPS 21 to the control server 30. When the acquiring unit 301 acquires the wire identification information input to the control server 30, it writes the wire identification information to a "passing wire" associated with the target "wire."

[0070] In the HPS management table, the adjustable amount calculated by the adjustable amount calculation unit 306 for the "HPS" is shown in the "adjustable amount" field. An example of a method for calculating the adjustable amount by the possible amount calculation unit 306 will be described below. The possible amount calculation unit 306 calculates the adjustable amount by subtracting the power supplied from the "HPS" from the power capacity of the "HPS". Note that the power supplied from the "HPS" is a value specified from supply information related to the "HPS". Also, the power capacity of the "HPS" is a value specified from capacity information related to the "HPS". The possible amount calculation unit 306 calculates the adjustable amount for each predetermined time. The predetermined time may be any time, but is, for example, one hour. The possible amount calculation unit 306 writes the calculated adjustable amount to the "adjustable amount" associated with the target "HPS."

[0071] An example of the contents of the HPS management table will be explained. "HPS" specified by "21A" is associated with the "receiving distribution line" of "17A" and the "intra-facility line" of "202A" as "transit lines", and is associated with "30" as the "adjustable amount".

[0072] 8 is a flowchart showing the flow of the adjustment amount calculation process. The adjustment amount calculation process is a process in which the control server 30 calculates an adjustment amount. In this embodiment, the adjustment amount calculation process is started at predetermined time intervals. The predetermined time may be any time, but is, for example, one hour.

[0073] The target determination unit 303 judges whether or not the apparent power of the electric wire needs to be adjusted (step (hereinafter referred to as "S") 101). The target determination unit 303 refers to the electric wire management table (see FIG. 5). Then, the target determination unit 303 judges whether or not the apparent power of the "electric wire" needs to be adjusted by comparing the "power information" associated with the "electric wire" that is the subject of the judgment in the electric wire management table with the "threshold value" associated with this "electric wire". If there are multiple pieces of power information that are not used in the judgment in step 101, the target determination unit 303 makes the judgment in step 101 for each piece of power information. Furthermore, if the "threshold value" in the electric wire management table has threshold values ​​for multiple types of parameters related to apparent power, the target determination unit 303 makes the judgment in step 101 for each type of parameter. When the target determining unit 303 determines that there is no electric wire that needs to adjust the apparent power (NO in S101), the adjustment amount calculation process ends. In this case, the HPS 21 does not adjust the apparent power of the electric wire.

[0074] On the other hand, if there is a wire that has been determined by the target determining unit 303 to require adjustment of apparent power (YES in S101), the process proceeds to the next step. The target determination unit 303 determines whether or not there are multiple adjustment targets (S102). When there are adjustment targets for each of the multiple electric wires, the target determination unit 303 determines that there are multiple adjustment targets. When there are multiple adjustment targets for one electric wire, the target determination unit 303 determines that there are multiple adjustment targets.

[0075] When the adjustment target determining unit 303 determines that there is one adjustment target (NO in S102), the required amount calculating unit 304 calculates the adjustment required amount for the one adjustment target. A description will be given of an example of a method for calculating the adjustment required amount by the adjustment required amount calculation unit 304. The adjustment required amount is calculated to be larger as the difference between the parameter to be adjusted, which is specified from the "power information" associated with the electric wire to be adjusted in the electric wire management table (see FIG. 5), and the "threshold value" related to this adjustment target is larger.

[0076] Moreover, the adjustment amount calculation unit 307 determines the adjustment required amount calculated by the required amount calculation unit 304 as the adjustment amount for the adjustment target. Furthermore, the adjustment amount calculation unit 307 determines the supply amount of the HPS 21 used for the adjustment so that the determined adjustment amount is supplied to the electric wire to be adjusted (S103).

[0077] On the other hand, if the target determination unit 303 determines that there are multiple adjustment targets (YES in S102), the required amount calculation unit 304 calculates the required adjustment amount for each adjustment target. Furthermore, the required amount calculation unit 304 calculates the total value of the calculated required adjustment amounts (S104). The adjustable amount calculation unit 306 calculates the total value of the adjustable amount for each HPS 21 used in adjusting the adjustment target (S105).

[0078] The adjustment amount calculation unit 307 determines whether the total value of the adjustment possible amounts is equal to or greater than the total value of the adjustment required amounts (S106). When the adjustment amount calculation unit 307 determines that the total value of the adjustable amounts is equal to or greater than the total value of the adjustment required amounts (YES in S106), the adjustment amount calculation unit 307 determines the adjustment required amount calculated by the required amount calculation unit 304 for each adjustment target as the adjustment amount for each adjustment target (S107). In addition, the adjustment amount calculation unit 307 determines the supply amount of HPS 21 used for adjustment so that the determined adjustment amount is supplied to the electric wire to be adjusted (S108).

[0079] Furthermore, when the adjustment amount calculation unit 307 determines that the total value of the adjustable amounts is less than the total value of the adjustment required amounts (NO in S106), the adjustment amount calculation unit 307 restricts the adjustment by the HPS 21 of at least one of the adjustment targets among the multiple adjustment targets. In this case, the adjustment amount calculation unit 307 determines the adjustment amount for each adjustment target based on the priority order indicated in the relationship management table for the adjustment of the adjustment targets (S109). Here, the adjustment amount calculation unit 307 restricts the adjustment by the HPS 21 of the adjustment target having a low priority order indicated in the relationship management table. Furthermore, the adjustment amount calculation unit 307 determines the supply amount of the HPS 21 to be used for the adjustment so that the determined adjustment amount is supplied to the electric wire to be adjusted (S110).

[0080] Next, an example of how the adjustment amount is calculated in the adjustment amount calculation process (see FIG. 8) will be described. In the following, the adjustment targets are assumed to be three: the higher-order harmonic current in the in-facility power line 202 of "202A", the lower-order harmonic current which is "other orders" in the receiving-side power line 17 of "17A", and the "other power factors" in the receiving-side power line 17 of "17A". In addition, it is assumed that the adjustment required amount of the higher-order harmonic current in the in-facility power line 202 is "20", the adjustment required amount of the lower-order harmonic current which is "other orders" in the receiving-side power line 17 is "40", and the adjustment required amount of the "other power factors" in the receiving-side power line 17 is "60".

[0081] The target determining unit 303 determines that the apparent power in the electric wire needs to be adjusted (YES in S101), and also determines that there are multiple targets for adjustment (YES in S102). The required amount calculation unit 304 calculates the total adjustment required amount for each adjustment target (S104). In the above example, the required amount calculation unit 304 calculates the total adjustment required amount as "20+40+60=120" (S104).

[0082] The available amount calculation unit 306 calculates the total value of the adjustable amount for the HPS 21 used for adjustment (S105). As described above, the electric wires to be adjusted are the in-facility electric wire 202 of "202A" and the receiving-side electric wire 17 of "17A". In this case, the extraction unit 305 extracts, as the HPS 21 to be used for adjustment, the "HPS" in which the electric wire identification information related to any of the electric wires to be adjusted is associated with the "transit electric wire" in the HPS management table (see FIG. 7). In the above example, the extraction unit 305 extracts, as the HPS 21 to be used for adjustment, the HPSs 21 of "21A", "21B", "21C", "21D", "21E", and "21F" associated with at least one of the electric wires to be adjusted, "17A" and "202A". Furthermore, the possible amount calculation unit 306 calculates the total value of the adjustable amounts for the HPS 21 used for adjustment from the "adjustable amounts" shown in the HPS management table (see FIG. 7) as "30+20+15+15+10+10=100" (S105).

[0083] The adjustment amount calculation unit 307 determines that the total value of the adjustment possible amounts is less than the total value of the adjustment required amounts (NO in S106). The adjustment amount calculation unit 307 determines the adjustment amount for each adjustment target based on the "priority order" shown in the relationship management table (see FIG. 6) (S109).

[0084] In the above example, of the three adjustment targets, the "adjustment target" associated with the highest "priority" in the relationship management table is the "high-order harmonics" of the "wire" "202". In this case, the adjustment amount calculation unit 307 adjusts the high-order harmonic current in the in-facility wire 202 "202A" as the highest priority among the three adjustment targets. More specifically, the adjustment amount for the high-order harmonic current in the in-facility wire 202 "202A" is determined to be "20", which is the required adjustment amount. Among the three adjustment targets, the "adjustment target" associated with the second highest "priority" in the relationship management table is the "other order" of the "electric line" of "17." In this case, the adjustment amount calculation unit 307 determines the adjustment amount for the low-order harmonic current that is the "other order" in the receiving-side distribution line 17 of "17A" to be "40," which is the adjustment requirement. The value obtained by subtracting the adjustment amount for the high-order harmonic current at "202A" and the adjustment amount for the low-order harmonic current of "other orders" at "17A" from the total value of the adjustment amount "100" calculated by the adjustment amount calculation unit 306 is "100-(20+40)=40". On the other hand, the adjustment required amount for the "other power factor" at "17A", which is the "adjustment target" associated with the lowest "priority" in the relationship management table among the three adjustment targets, is "60" as described above. In this case, the adjustment amount calculation unit 307 determines the adjustment amount for the "other power factor" at the receiving-side distribution line 17 of "17A" to be "40". In other words, the adjustment amount calculation unit 307 limits the adjustment by the HPS 21 for the "other power factor" at the receiving-side distribution line 17 of "17A".

[0085] Furthermore, the adjustment amount calculation unit 307 determines the supply amount of the HPS 21 used for the adjustment so that each determined adjustment amount is supplied to the electric wire to be adjusted (S110). In the above example, the adjustment amount calculation unit 307 determines the total supply amount to be "30" for the HPS 21 of "21A", by setting the supply amount for adjusting the "higher harmonics" in "202A" to "20" and the supply amount for adjusting the "other orders" in "17A" to "10". The adjustment amount calculation unit 307 also determines the supply amount for the HPS 21 of "21B" to be "20", which is the supply amount for adjusting the "other orders" in "17A". The adjustment amount calculation unit 307 also determines the total supply amount to be "15" for the HPS 21 of "21C", by setting the supply amount for adjusting the "other orders" in "17A" to "10" and the supply amount for adjusting the "other power factors" in "17A" to "5". Furthermore, the adjustment amount calculation unit 307 determines the supply amount for the HPS 21 of "21D" to be "15", which is the supply amount for adjusting the "other power factors" in "17A". The adjustment amount calculation unit 307 also determines the supply amount for the HPS 21 of "21E" and "21F" to be "10", which is the supply amount for adjusting the "other power factors" in "17A". In this manner, the relationship of adjustment by the HPS 21 for each adjustment target is determined.

[0086] The transmitting unit 308 of the control server 30 instructs the HPS 21 used for adjustment to adjust the apparent power in the electric wire to be adjusted. In this case, the transmitting unit 308 transmits supply amount information indicating the supply amount determined by the adjustment amount calculating unit 307, wire identification information identifying the electric wire to which the power is to be supplied, and target identification information identifying the type of the adjustment target. In addition, when one HPS 21 is caused to adjust the apparent power in multiple electric wires to be adjusted, the transmitting unit 308 transmits the supply amount information, wire identification information, and target identification information to this one HPS 21 for each electric wire to be adjusted. In addition, when one HPS 21 is caused to adjust multiple adjustment targets in one electric wire to be adjusted, the transmitting unit 308 transmits the supply amount information and target identification information to this one HPS 21 for each adjustment target. The HPS21 receives an instruction to adjust the apparent power in the electric wire to be adjusted from the transmitting unit 308, and also acquires the supply amount information, the electric wire identification information, and the target identification information. In this case, the HPS21 supplies a current required for supplying the power specified from the supply amount information to the electric wire to be adjusted specified from the electric wire identification information. More specifically, the HPS21 supplies a current having a waveform for adjusting the adjustment target specified from the target identification information to the electric wire to be adjusted.

[0087] As described above, in this embodiment, the target determination unit 303 determines the adjustment target based on the power information. Furthermore, the required amount calculation unit 304 calculates the adjustment required amount for the adjustment target based on the power information. Furthermore, the possible amount calculation unit 306 calculates the adjustment possible amount for the HPS 21 based on the capacity information. Furthermore, when there are multiple adjustment targets, the adjustment amount calculation unit 307 determines the adjustment amounts for the multiple adjustment targets based on the required adjustment amount calculated by the required amount calculation unit 304 and the adjustment possible amount calculated by the possible amount calculation unit 306. That is, in this embodiment, the target determination unit 303, the required amount calculation unit 304, the possible amount calculation unit 306, and the adjustment amount calculation unit 307 determine the relationship of adjustment by the HPS 21 for each of the multiple adjustment targets in the adjustment target electric wire based on the power information and the capacity information. In this case, each of the multiple adjustment targets is adjusted by the adjustment amount determined based on the capacity information for each of the multiple adjustment targets by the HPS 21. Therefore, it is possible to cause the HPS 21 to adjust the multiple adjustment targets based on an index related to the power capacity of the HPS 21.

[0088] In particular, when multiple adjustment targets are adjusted by the HPS21, the supply amount is likely to be larger than when a single adjustment target is adjusted by the HPS21, and so in this embodiment, the relationship of adjustment by the HPS21 for each of the multiple adjustment targets is determined based on capacity information. In this case, compared to when the HPS21 adjusts the multiple adjustment targets regardless of an index related to the power capacity of the HPS21, it is possible to have the HPS21 adjust the multiple adjustment targets according to adjustment content suitable for the HPS21.

[0089] Furthermore, in this embodiment, the adjustment amount calculation unit 307 limits the adjustment of at least one of the multiple adjustment targets by the HPS 21 based on the capacity information. Therefore, the adjustment amount calculation unit 307 can also be regarded as a limiting means for limiting the adjustment by the HPS 21 of the adjustment target. If the adjustment by the HPS21 is not limited, the HPS21 may be instructed to adjust the supply amount to a level greater than the maximum power that the HPS21 can supply. In this case, if the HPS21 attempts to supply the instructed amount of power, the load on the HPS21 increases, and there is a risk of a malfunction occurring in the HPS21. Therefore, in this embodiment, by limiting the adjustment by the HPS21 based on the capacity information, the occurrence of a malfunction in the HPS21 is suppressed compared to a configuration in which the adjustment by the HPS21 is not limited.

[0090] In particular, in this embodiment, the adjustment by the HPS 21 is restricted based on the relationship between each of a plurality of adjustment targets. As one example, the adjustment by the HPS 21 is restricted based on a priority relationship defined for the adjustment of a plurality of adjustment targets. In this case, it is possible to prevent adjustment of adjustment targets that are not suitable as targets for restriction from being restricted, compared to a case in which adjustment by the HPS 21 is restricted regardless of the relationship between each of a plurality of adjustment targets.

[0091] In this embodiment, the multiple adjustment targets include the power factor of the electric wire to be adjusted and harmonics of the electric wire to be adjusted. When the power factor of the electric wire to be adjusted satisfies a predetermined limiting condition, the adjustment amount calculation unit 307 limits the adjustment by the HPS 21 to the adjustment of the power factor of the electric wire to be adjusted rather than the adjustment of the harmonics of the electric wire to be adjusted. As an example of the limiting condition, the power factor of the electric wire to be adjusted corresponds to "other power factor" shown in "adjustment target" in the relationship management table (see FIG. 6). In this case, it is possible to determine targets to which the restriction on adjustment by the HPS 21 is preferentially applied, depending on the power factor in the electric wire to be adjusted. Note that limiting the adjustment by the HPS21 to the adjustment of the power factor in the wire to be adjusted rather than the adjustment of the harmonics in the wire to be adjusted includes not limiting the adjustment of the harmonics in the wire to be adjusted.

[0092] In this embodiment, the adjustment amount calculation unit 307 determines the relationship of adjustment by the HPS 21 for each of the multiple adjustment targets based on the contents stored in the storage unit 302 that stores the relationship of adjustment by the HPS 21 for each of the multiple adjustment targets in the electric wire. As an example, the adjustment amount calculation unit 307 determines the relationship of adjustment for each of the multiple adjustment targets based on the "priority order" in the relationship management table (see FIG. 6) stored in the storage unit 302. In this case, the processing load of the adjustment amount calculation unit 307 for determining the relationship of adjustment for each of the multiple adjustment targets is reduced.

[0093] In addition, in this embodiment, the adjustment amount calculation unit 307 determines the relationship between the adjustment target in one adjustment target electric wire and the adjustment by the HPS21 for the adjustment target in another adjustment target electric wire different from the one adjustment target electric wire, based on the capacity information. In this case, compared to when HPS21 is made to adjust the adjustment targets of multiple electric wires to be adjusted regardless of the indicators related to the power capacity of HPS21, it is possible to make HPS21 adjust the adjustment targets of multiple electric wires to be adjusted based on the adjustment content suitable for HPS21.

[0094] In the present embodiment, the in-facility electric wire 202 as the electric wire to be adjusted is provided on the power receiving side of the receiving-side electric power distribution line 17 as the electric wire to be adjusted. The adjustment target of the in-facility electric wire 202 is a specific target different from any of the multiple adjustment targets of the receiving-side electric power distribution line 17. The specific target is a high-order harmonic current. In this case, compared to a case where HPS21 is made to adjust the adjustment targets of multiple electric wires to be adjusted regardless of the power capacity indicators in HPS21, it is possible to make HPS21 adjust multiple adjustment targets that differ depending on the electric wire to be adjusted, based on the adjustment content that is suitable for HPS21.

[0095] Next, another example in which the adjustment amount is calculated in the adjustment amount calculation process (see FIG. 8) will be described. In the following, the adjustment targets are assumed to be four items: a low-order harmonic current that is a "number of orders requiring adjustment" (see FIG. 6) in the receiving power distribution line 17 of "17B", a low-order harmonic current that is a "different number of orders" in the receiving power distribution line 17 of "17B", a "power factor that requires adjustment" in the receiving power distribution line 17 of "17B", and a "power factor" in the in-facility electric line 202 of "202D". In addition, it is assumed that the adjustment amount required for the low-order harmonic current that is a "number of orders requiring adjustment" in the receiving power distribution line 17 is "40", and the adjustment amount required for the low-order harmonic current that is a "different number of orders" in the receiving power distribution line 17 is "20". In addition, it is assumed that the adjustment amount required for the "power factor that requires adjustment" in the receiving power distribution line 17 is "70", and the adjustment amount required for the power factor in the in-facility electric line 202 is "20".

[0096] The target determining unit 303 determines that the apparent power in the electric wire needs to be adjusted (YES in S101), and also determines that there are multiple targets for adjustment (YES in S102). The required amount calculation unit 304 calculates the total value of the adjustment required amount for each adjustment target (S104). In the above example, the required amount calculation unit 304 calculates the total value of the adjustment required amount as "40+20+70+20=150". The possible amount calculation unit 306 calculates the total value of the adjustable amount for the HPS 21 used for the adjustment (S105). As described above, the electric wires to be adjusted are the receiving-side distribution line 17 of "17B" and the in-facility electric wire 202 of "202D". In this case, the extraction unit 305 extracts the HPSs 21 of "21G", "21H", "21I", "21J", "21K", and "21L" that receive power through the electric wires to be adjusted as the HPSs 21 to be used for the adjustment. In addition, the possible amount calculation unit 306 calculates the total value of the adjustable amount for the HPSs 21 used for the adjustment as "30+30+10+10+10+10=100" from the "adjustable amount" shown in the HPS management table (see FIG. 7).

[0097] The adjustment amount calculation unit 307 determines that the total value of the adjustment possible amounts is less than the total value of the adjustment required amounts (NO in S106). The adjustment amount calculation unit 307 determines the adjustment amount for each adjustment target based on the priority order shown in the relationship management table (see FIG. 6) (S109).

[0098] In the above example, among the four adjustment targets, the "adjustment target" associated with the highest "priority" in the relationship management table is the "order requiring adjustment" of the "electric line" "17". In this case, the adjustment amount calculation unit 307 adjusts the low-order harmonic current, which is the "order requiring adjustment" in the receiving-side distribution line 17 "17B", of the four adjustment targets, with the highest priority. More specifically, the adjustment amount for the low-order harmonic current, which is the "order requiring adjustment" in the receiving-side distribution line 17 "17B", is determined to be "40", which is the adjustment required amount. The value obtained by subtracting the adjustment amount for the low-order harmonic current, which is the "order requiring adjustment" in the receiving-side distribution line 17 of "17B", from the total value of the adjustment amount "100" calculated by the adjustment amount calculation unit 306 is "100-40=60". On the other hand, the adjustment amount required for the "power factor requiring adjustment" in "17", which is the "adjustment object" associated with the second highest "priority" in the relationship management table among the four adjustment objects, is "70" as described above. In this case, the adjustment amount calculation unit 307 determines the adjustment amount for the "power factor requiring adjustment" in "17B" to be "60", which is a value limited with respect to the adjustment amount "70". In addition, the adjustment amount calculation unit 307 determines the adjustment amount for the low-order harmonic current, which is the "other order" in "17B" among the four adjustment objects, and the adjustment amount for the "power factor" in "202D" to be "0".

[0099] In addition, if the adjustment target in "17B" is not the "power factor requiring adjustment" in "17B" but the "other power factor" in "17B", the "other power factor" has a lower "priority" in the relationship management table than the "other orders" that are the adjustment target in "17B". In this case, adjustment of the "other power factor" in "17B" is more restricted than adjustment of the "other orders" in "17B". In other words, when the adjustment target in "17B" is the "power factor requiring adjustment", the adjustment restrictions are relaxed compared to when the adjustment target in "17B" is the "other power factor".

[0100] The adjustment amount calculation unit 307 determines the supply amount of the HPS 21 used for the adjustment so that the determined adjustment amount is supplied to the electric wire to be adjusted (S110). In the above example, the adjustment amount calculation unit 307 determines the supply amount for the HPS 21 of "21G" to "30", which is the supply amount for adjusting the low-order harmonic current that is the "order requiring adjustment" in "17B". In addition, for the HPS 21 of "21H", the adjustment amount calculation unit 307 sets the supply amount for adjusting the "order requiring adjustment" in "17B" to "10" and sets the supply amount for adjusting the "power factor requiring adjustment" in "17B" to "20", thereby determining the total supply amount to "30". In addition, the adjustment amount calculation unit 307 determines the supply amounts for the HPS 21 of "21I", "21J", "21K", and "21L" to "10", which is the supply amount for adjusting the "power factor requiring adjustment" in "17B". In this manner, the relationship of adjustment by the HPS 21 for each adjustment target is determined.

[0101] As described above, in this embodiment, when the power factor of the electric wire to be adjusted satisfies a predetermined relaxation condition, the adjustment amount calculation unit 307 relaxes the restriction on the adjustment of the power factor of the electric wire to be adjusted. The relaxation condition may be that the power factor of the electric wire to be adjusted corresponds to a "power factor requiring adjustment" shown in the "adjustment target" in the relationship management table (see FIG. 6). In this case, in a case where the adjustment of the power factor in the electric wire to be adjusted by the HPS 21 is limited, the degree of the limitation on the adjustment can be determined according to the power factor in the electric wire to be adjusted.

[0102] In addition, in this embodiment, when a high-order harmonic current in the in-facility power line 202 is adjusted to the HPS 21, the adjustment amount calculation unit 307 determines the relationship of adjustment between the receiving-side power line 17 and the in-facility power line 202 such that the in-facility power line 202 is adjusted with priority over the receiving-side power line 17. Furthermore, when a high-order harmonic current in the in-facility power line 202 is not adjusted to the HPS 21, the adjustment amount calculation unit 307 determines the relationship of adjustment between the receiving-side power line 17 and the in-facility power line 202 such that the receiving-side power line 17 is adjusted with priority over the in-facility power line 202. In this case, the electric wire to be adjusted with priority can be determined depending on whether or not the high-order harmonic current in the in-facility electric wire 202 is adjusted.

[0103] In the present disclosure, it has been described that the adjustment target in the supply-side distribution line 14 is adjusted with priority over the adjustment target in the reception-side distribution line 17, but the present invention is not limited to this. The adjustment target in the power supply-side distribution line 17 may be adjusted with priority over the adjustment target in the power supply-side distribution line 14 .

[0104] In addition, in the present disclosure, the adjustment target in the in-facility electric wire 202 different from any of the multiple adjustment targets in the supply-side electric power distribution line 14 and the receiving-side electric power distribution line 17 is described as a high-order harmonic current, but is not limited thereto. The adjustment target in the in-facility electric wire 202 different from any of the multiple adjustment targets in the supply-side electric power distribution line 14 and the receiving-side electric power distribution line 17 may be any parameter other than the power factor and harmonic current among the parameters described above regarding apparent power.

[0105] Furthermore, the relationship of adjustments made by the HPS 21 for each of a plurality of adjustment targets is not limited to the example shown in the relationship management table. As one example, it may be determined that, among the "adjustment targets" shown in the relationship management table, the "high-order harmonics" in the in-facility electric wires 202 are adjusted with the highest priority.

[0106] Also, in the present disclosure, it has been described that it is determined that the higher-order harmonic current in the in-facility electric wire 202 is adjusted with priority over the adjustment target in the receiving-side electric power distribution line 17. Here, when the higher-order harmonic current in the in-facility electric wire 202 is adjusted, the adjustment amount calculation unit 307 may prevent the HPS 21 that can be used to adjust the higher-order harmonic current in the in-facility electric wire 202 from being used for adjustments other than the adjustment of this in-facility electric wire 202.

[0107] Also, in the present disclosure, it has been described that the adjustment amount calculation unit 307 of the control server 30 limits the adjustment by the HPS 21 of the adjustment target. Here, limiting the adjustment by the HPS 21 of the adjustment target includes causing the HPS 21 to supply less power than is necessary for improving the adjustment target. In other words, limiting the adjustment by the HPS 21 of the adjustment target is not limited to limiting the adjustment amount compared to the result calculated by the required amount calculation unit 304. Also, limiting the adjustment by the HPS 21 of the adjustment target includes not causing the HPS 21 to adjust the adjustment target. Furthermore, limiting the adjustment of the adjustment target by the HPS21 also includes limiting the time of the adjustment of the adjustment target by the HPS21. As an example of the time limit, when the HPS21 adjusts an adjustment target to which adjustment restrictions are not applied and an adjustment target to which adjustment restrictions are applied, the adjustment target to which restrictions are not applied is adjusted by the HPS21, and then the adjustment target to which restrictions are applied is adjusted by the HPS21. In other words, limiting the adjustment of the adjustment target by the HPS21 includes not only limiting the adjustment amount of the adjustment target, but also limiting the adjustment of the adjustment target by the HPS21 in any manner.

[0108] Also, in the present disclosure, it has been described that the adjustment amount calculation unit 307 determines the relationship of adjustment by the HPS 21 for each of the multiple adjustment targets. Here, the adjustment amount calculation unit 307 may determine the relationship of adjustment for multiple adjustment targets in multiple electric wires or electric circuits, or may determine the relationship of adjustment for multiple adjustment targets in one electric wire. Also, the adjustment amount calculation unit 307 may determine the relationship of adjustment by one HPS 21 for multiple adjustment targets, or may determine the relationship of adjustment by multiple HPSs 21 for multiple adjustment targets. In other words, the number of HPSs 21 used to adjust the multiple adjustment targets may be one or more.

[0109] Further, in the present disclosure, it has been described that the capacity information is information indicating the maximum power that the AF 214 of the HPS 21 can supply, but the present invention is not limited to this. The capacity information may be information indicating the remaining power that can be supplied by the AF 214 of the HPS 21. In other words, the capacity information may be information indicating an adjustable amount for the AF 214. In this way, the capacity information may be any information relating to the capacity of power in the HPS 21.

[0110] In addition, in the present disclosure, the control server 30 determines the electric wires to be adjusted and the adjustment targets, and calculates the amount of adjustment required, but this is not limited to the above. The management server 40 may determine the electric wire to be adjusted and the adjustment target, and may calculate the adjustment required amount. More specifically, the management server 40 may acquire power information from the electric wire sensor 10S and the in-facility electric wire sensor 20S, and may determine the electric wire to be adjusted and the adjustment target based on the acquired power information. The management server 40 may also calculate the adjustment required amount for the adjustment target based on the power information. Then, the management server 40 may transmit information including information indicating the calculated adjustment required amount, electric wire identification information for identifying the electric wire to be adjusted, and target identification information for identifying the adjustment target, to the control server 30 as power information related to the apparent power in the electric wire.

[0111] Also, in the present disclosure, the power control system 1 is described as being provided with the management server 40 and the control server 30, but this is not limited thereto. One server provided in the power control system 1 may have the functions of the management server 40 and the control server 30. This one server may then determine the adjustment targets, determine the adjustment relationships between the multiple adjustment targets, and instruct the HPS 21 to adjust the apparent power in the power lines.

[0112] In addition, in the present disclosure, the control server 30 has been described as instructing the HPS 21 to adjust the apparent power in the electric line, but this is not limiting. A server other than the control server 30 may receive an instruction to adjust the apparent power in the electric line from the control server 30 and send the received instruction to the HPS 21.

[0113] In addition, in the present disclosure, the relationship management table is described as being stored in the storage unit 302 of the control server 30, but this is not limiting. The relationship management table may be stored in a storage means of a server device other than the control server 30. In this case, the control server 30 may determine the adjustment relationships of a plurality of adjustment targets based on the contents of the relationship management table stored in the storage means of the other server device.

[0114] In addition, in the present disclosure, the electric lines that are the targets of the apparent power adjustment by the HPS 21 are the supply side distribution line 14, the receiving side distribution line 17, and the intra-facility electric line 202, but are not limited to this. The electric power line that is the target of the adjustment of apparent power by the HPS 21 may be the electric power transmission line 12 or the consumer side distribution line 19 .

[0115] In addition, in the present disclosure, the apparent power in the in-facility electric wires 202 is defined as the adjustment target in the power consuming facility 20, but this is not limited thereto. A parameter related to the apparent power in the power receiving equipment 201 provided in the power consuming facility 20 may be determined as the adjustment target.

[0116] Furthermore, in the present disclosure, the parameters shown in the relationship management table (see FIG. 6) are exemplified as adjustment targets, but the present invention is not limited to this. The parameter to be adjusted may be any of those mentioned above regarding apparent power.

[0117] In addition, in the present disclosure, the parameters such as the capacity, the adjustment required amount, the adjustment possible amount, the adjustment amount, and the supply amount are power, but the present disclosure is not limited to this. Each parameter may be any of the parameters described above regarding apparent power.

[0118] Further, in the present disclosure, the adjustment amount calculation unit 307 has been described as determining the relationship between the adjustments of the multiple adjustment targets based on the priority order determined for the adjustments of the multiple adjustment targets, but this is not limited to this. The adjustment amount calculation unit 307 may determine the relationship between the adjustments of the multiple adjustment targets based on the ratio of adjustments determined for the multiple adjustment targets. For example, the ratio between the adjustment amount for the high-order harmonic current in the in-facility power line 202 and the adjustment amount for the power factor in the receiving-side power distribution line 17 may be determined to be 2:1. The adjustment amount calculation unit 307 may then determine the adjustment amount for the high-order harmonic current in the in-facility power line 202 and the adjustment amount for the power factor in the receiving-side power distribution line 17 in accordance with the ratio of the adjustment amounts determined in advance. In other words, the method by which the adjustment amount calculation unit 307 determines the relationship between the adjustments of the multiple adjustment targets may be any method, not just a method based on the priority order of the adjustments.

[0119] In addition, in the present disclosure, the control server 30 is configured to control the operation of the HPS 21, but this is not limited to the configuration. 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 implementing various functions. The HPS 21 may also have functions of the acquisition unit 301, the storage unit 302, the target determination unit 303, the required amount calculation unit 304, the extraction unit 305, the available amount calculation unit 306, the adjustment amount calculation unit 307, the transmission unit 308, and the like of the control server 30. The HPS 21 may then acquire power information and determine an adjustment target based on the acquired power information. The HPS 21 may also acquire capacity information and determine a relationship of adjustment by the HPS 21 for each of a plurality of adjustment targets based on the power information and the capacity information. The HPS 21 may also determine a priority relationship of adjustment for a plurality of adjustment targets, or may limit the adjustment by the HPS 21 of the apparent power in the HPS 21.

[0120] Here, each of the embodiments described above can be understood as follows. The target determination unit 303, required amount calculation unit 304, possible amount calculation unit 306, and adjustment amount calculation unit 307 of the power control system 1 of this embodiment determine the relationship of adjustment by the HPS21 for each of the multiple adjustment targets in the electric wire to be adjusted, based on the power information and capacity information. In this case, the HPS 21 can adjust the multiple adjustment targets based on an index related to the power capacity of the HPS 21. Therefore, compared to a case where the HPS 21 adjusts the multiple adjustment targets regardless of an index related to the power capacity of the HPS 21, it is possible to have the HPS 21 adjust the multiple adjustment targets with adjustment content suitable for the HPS 21.

[0121] Furthermore, in this embodiment, the adjustment amount calculation unit 307 limits the adjustment by the HPS 21 of at least one of the multiple adjustment targets based on the capacity information. In this case, malfunctions in the HPS 21 can be suppressed compared to a configuration in which adjustments by the HPS 21 are not restricted.

[0122] Furthermore, in this embodiment, the adjustment amount calculation unit 307 imposes restrictions based on the relationships between a plurality of adjustment targets. Compared to a case where adjustment by the HPS 21 is limited regardless of the relationship between each of a plurality of adjustment targets, it is possible to prevent adjustment of adjustment targets that are not suitable as targets for limitation from being limited.

[0123] Furthermore, in this embodiment, when the power factor in the electric wire to be adjusted satisfies a predetermined limiting condition, the adjustment amount calculation unit 307 imposes a restriction on the adjustment of the power factor rather than on the adjustment of the harmonics. In this case, it is possible to determine targets to which the restriction on adjustment by the HPS 21 is preferentially applied, depending on the power factor in the electric wire to be adjusted.

[0124] Furthermore, in this embodiment, when the power factor in the electric wire to be adjusted satisfies a predetermined relaxation condition, the adjustment amount calculation unit 307 relaxes the restriction on the adjustment of the power factor in the electric wire to be adjusted. In a case where the adjustment of the power factor in the electric wire to be adjusted by the HPS 21 is limited, the degree of the limitation on the adjustment can be determined according to the power factor in the electric wire to be adjusted.

[0125] Furthermore, in this embodiment, the adjustment amount calculation unit 307 determines the relationship of adjustment by the HPS21 for multiple adjustment targets based on the contents stored in the memory unit 302, which stores the relationship of adjustment by the HPS21 for each of the multiple adjustment targets in the wire to be adjusted. In this case, the processing load of the adjustment amount calculation unit 307 for determining the relationship of adjustment for each of the multiple adjustment targets is reduced.

[0126] Moreover, in this embodiment, the adjustment amount calculation unit 307 determines the relationship of adjustment by the HPS 21 between the adjustment target in the adjustment target electric wire and the adjustment target in the electric circuit, based on the capacitance information. In this case, compared to when HPS21 is made to adjust the adjustment targets of multiple electric wires to be adjusted regardless of the indicators related to the power capacity of HPS21, it is possible to make HPS21 adjust the adjustment targets of multiple electric wires to be adjusted based on the adjustment content suitable for HPS21.

[0127] In the present embodiment, the adjustment target in the electric circuit includes a specific target different from any of the adjustment targets in the supply-side distribution line 14 and the receiving-side distribution line 17. In this case, compared to a case where HPS21 is made to adjust the adjustment targets of multiple electric wires to be adjusted regardless of the power capacity indicators in HPS21, it is possible to make HPS21 adjust multiple adjustment targets that differ depending on the electric wire to be adjusted, based on the adjustment content that is suitable for HPS21.

[0128] Furthermore, in this embodiment, the adjustment amount calculation unit 307 determines the relationship between the receiving side distribution line 17 and the electric circuit so that, when a specific target is adjusted to the HPS 21, the electric circuit is adjusted with priority over the receiving side distribution line 17, and determines the relationship so that, when a specific target is not adjusted to the HPS 21, the receiving side distribution line 17 is adjusted with priority over the electric circuit. In this case, the electric wire to be adjusted with priority can be determined depending on whether or not the high-order harmonic current in the in-facility electric wire 202 is adjusted.

[0129] From another perspective, the HPS 21 of the present embodiment determines the relationship of adjustment for each of a plurality of adjustment targets in the adjustment-target electric wire, based on the power information and information related to the power capacity in the HPS 21. Even in this case, it is possible to have the HPS 21 adjust the multiple adjustment targets in consideration of an index related to the power capacity of the HPS 21. Therefore, compared to a case in which the HPS 21 adjusts the multiple adjustment targets regardless of an index related to the power capacity of the HPS 21, it is possible to have the HPS 21 adjust the multiple adjustment targets with adjustment content suitable for the HPS 21.

[0130] In addition, the configurations described above are not limited to the above embodiments, and can be modified without departing from the spirit of the invention. In other words, it is understood that various modifications of the form and details are possible without departing from the spirit and scope of the claims. The present invention is not limited to the above-described configurations, and some of the configurations described above may be omitted, or other functions may be added to the configurations described above. [Explanation of symbols]

[0131] 1...power control system, 10...power system, 10S...power line 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...management server, 214...AF

Claims

1. A determination means for determining a relationship of adjustment by an appliance for each of a plurality of adjustment targets related to apparent power in the electric line, The control device, wherein the determination means determines the relationship of the adjustment based on priorities set based on the relationship between each of the targets of adjustment for the plurality of electric wires that supply power from the supply side to the receiving side, and on power information related to apparent power.

2. The control device according to claim 1 , wherein the determination means determines the relationship of the adjustment for at least one appliance specified from appliance identification information that identifies an appliance and that is associated with electric wire identification information that identifies the electric wire.

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