Control system and control method

Abstract

The invention provides a control system and a control method. The control system controls a power demand amount indicating an amount of power supplied from an external power source to a supply target. The supply target includes a first resource and a second resource configured so that the amount of power demand can be adjusted. A control system is provided with a first control device that controls a first resource, and a second control device that controls a second resource. The first control device controls the first resource independently of the second control device. When the first start condition is satisfied, one of the first resource and the second resource starts a first adjustment operation that suppresses an increase in the amount of power demand. When a second start condition other than the first start condition is satisfied, the other of the first resource and the second resource starts a second adjustment operation that suppresses an increase in the amount of power demand.

Description

Technical Field

[0001] This disclosure relates to a control system and control method for controlling electricity demand. Background Technology

[0002] Japanese Patent Application Publication No. 2024-054667 discloses a technology for a server to adjust the power supply and demand in a power system using batteries within a battery station. Specifically, the battery station has a replaceable battery that can be swapped with an onboard battery. Furthermore, the server uses the replaceable battery to supply power to the power system (external power supply) and to charge itself using power from the power system (external charging).

[0003] The technology described in Japanese Patent Application Publication No. 2024-054667 involves adjusting power supply and demand solely through battery stations. However, it is also possible to address the use of other resources besides battery stations for power supply and demand adjustment. For example, it is possible to introduce battery stations into facilities equipped with air conditioning (such as business premises), using both the battery station and the air conditioning equipment for power supply and demand adjustment. However, in such facilities, it may not be easy for the control devices controlling existing equipment (such as air conditioning equipment) and the control devices controlling the added battery stations to cooperate. In such control devices, the control logic is often black-boxed, making it impossible to see the control logic from the outside. Therefore, in power supply and demand adjustment using multiple resources, interference between the controls may occur, unnecessarily restricting resource usage. Summary of the Invention

[0004] This disclosure was made to solve the above-mentioned problems, and its purpose is to provide a control system and control method that can properly control the power demand using multiple resources controlled by different control devices.

[0005] According to the first aspect of this disclosure, a control system as shown below is provided.

[0006] The control system is configured to control the amount of electricity required, which represents the amount of electricity supplied from an external power source to the object being supplied.

[0007] The supply targets include the first and second resources, which constitute adjustable electricity demand.

[0008] The control system includes a first control device for controlling a first resource and a second control device for controlling a second resource. The first control device is configured to control the first resource independently of the second control device. When a first start condition is met, one of the first and second resources initiates a first adjustment action to suppress the increase in power demand. When a second start condition is met in addition to the first start condition, the other of the first and second resources initiates a second adjustment action to suppress the increase in power demand.

[0009] In the aforementioned control system, during the period when the first start condition is met and the second start condition is not met, only the first adjustment action is performed. Then, if the second start condition is met in addition to the first start condition, the second adjustment action is performed. According to this control, even if the first and second control devices do not cooperate, the power demand can be appropriately controlled by each resource. The aforementioned control system can essentially suppress increases in power demand through the first adjustment action and perform the second adjustment action as needed. Thus, excessive restriction of resource usage can be prevented. The aforementioned control system can appropriately control power demand using multiple resources (the first resource and the second resource) controlled by different control devices.

[0010] The aforementioned external power source can be a power grid (e.g., a microgrid or a large-scale power grid equipped as infrastructure) or a high-capacity ESS (Energy Storage System). The external power source can supply alternating current (AC) or direct current (DC). The recipients of this power supply can be facilities such as business premises, residences such as apartments, or locations that provide services through resources (e.g., parking lots equipped with power supply equipment and / or battery stations). Each resource within the recipients of this power supply provides adjustment capabilities. Adjustment capabilities refer to the overall capacity to adjust power (frequency control, supply and demand balance adjustments, etc.), and also include reserve capacity.

[0011] According to the second aspect of this disclosure, the control method shown below is provided.

[0012] This control method is a method for controlling the amount of electricity required, which represents the amount of electricity supplied from an external power source to the object being supplied.

[0013] The supply targets include a first resource and a second resource that constitute adjustable electricity demand. The control method includes the following steps:

[0014] If the first initial condition is met, one of the first and second resources begins a first adjustment action to suppress the increase in electricity demand; and

[0015] If the second starting condition is also met in addition to the first starting condition, the other party of the first resource and the second resource begins the second adjustment action to suppress the increase in electricity demand.

[0016] According to the control method described above, similar to the control system described above, it is possible to use multiple resources controlled by different control devices to properly control the power demand.

[0017] The above and other objects, features, aspects, and advantages of the invention will become clear from the following detailed description in conjunction with the accompanying drawings and in relation to the invention. Attached Figure Description

[0018] Figure 1 This is a diagram illustrating the configuration of the control system according to an embodiment of the present disclosure.

[0019] Figure 2 It is used for Figure 1 The diagram shown illustrates the battery station.

[0020] Figure 3 This is a flowchart illustrating the control method involved in the embodiments of this disclosure.

[0021] Figure 4 It is used for Figure 1 The diagram illustrates the actions of each resource in the facility shown.

[0022] Figure 5 It means in Figure 3 The diagram shows the modification method of Equation 1 used in the process shown.

[0023] Figure 6 It means Figure 3 The flowchart of the first variation of the process shown.

[0024] Figure 7 It means Figure 3 The flowchart of the second variation of the process shown.

[0025] Figure 8 It means Figure 7 The flowchart shows the detailed process of power control.

[0026] Figure 9 It means Figure 4 The figure shows a variation of the first threshold and the second threshold.

[0027] Figure 10 It means Figure 1 The diagram shows a first variation of the configuration of the facility.

[0028] Figure 11 It means Figure 1 The diagram shows a second variation of the configuration of the facility.

[0029] Figure 12 It means Figure 3 The flowchart of the third variation of the process is shown.

[0030] Figure 13 It means Figure 3 The flowchart of the fourth variation of the process is shown. Detailed Implementation

[0031] Embodiments of this disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same or equivalent parts are labeled with the same reference numerals without being described repeatedly.

[0032] Figure 1 This is a diagram used to illustrate the configuration of the control system according to this embodiment. (Refer to...) Figure 1 The control system involved in this embodiment is installed in facility 1. Facility 1 includes building 10. Building 10 includes a distribution panel 11, an EMS (Energy Management System) controller 12, air conditioning equipment 210, and electrical loads 230. The air conditioning equipment 210 is configured to perform air conditioning within building 10 (e.g., adjusting at least one of air temperature, humidity, cleanliness, and airflow). The electrical loads 230 include one or more electrical devices used within building 10. The electrical loads 230 may include at least one of lighting fixtures, elevators, heaters, refrigerators, communication equipment, displays, and information processing equipment.

[0033] Facility 1 also includes an outdoor battery station 100 and an EVSE (Electric Vehicle Supply Equipment) 220. The EMS controller 12 is a computer that is communicatively connected to the air conditioning unit 210, the EVSE 220, and the electrical load 230. The EMS controller 12 includes a processor and storage devices. The battery station 100 includes a management unit 110 and a battery storage unit 120. The management unit 110 includes a control device 111 that controls various devices within the battery station 100. The control device 111 is a computer mounted on the battery station 100. The configuration of the battery station 100 will be described in detail later (see [reference]). Figure 2 Facility 1 is, for example, a business establishment such as a vehicle dealership. However, it is not limited to this; facility 1 can be other commercial facilities (department stores, roadside rest facilities, factories, etc.), public facilities, or even residences. In this embodiment, control device 111 and EMS controller 12 are respectively equivalent to one example of the "first control device" and "second control device" involved in this disclosure.

[0034] The power system PG supplies electricity to multiple supply objects, including facility 1. Facility 1 receives electricity from the power system PG at a receiving point R1. The receiving point R1 is electrically connected to the power system PG. The power system PG is a power grid constructed from transmission and distribution equipment. The power system PG may include power generation equipment and transformer equipment. Facility 1 and the power system PG are respectively equivalent to one example of the "supply object" and "external power source" involved in this disclosure.

[0035] The administrator of Facility 1 receives electricity from an Energy Service Provider (ESP), such as a power company. In this embodiment, the administrator of Facility 1 is equivalent to a demand party who has signed a contract with the ESP. Server 500 functions as a terminal for the ESP. Terminal UT functions as a terminal for the administrator of Facility 1. In this embodiment, a smartphone with a touch panel display is used as the terminal UT. Application software for power management of Facility 1 is installed on the terminal UT. The terminal UT is configured to communicate with EMS controller 12 and battery station 100 (control device 111) respectively. Furthermore, the terminal UT is not limited to a smartphone; it can also be a tablet terminal, a wearable device, or a mounted computer.

[0036] Power is supplied from the power system PG as needed. Therefore, the amount of electricity supplied from the power system PG to a receiving point (power supply) is consistent with the power consumption at that receiving point. Server 500 measures the amount of electricity supplied from the power system PG to multiple receiving points (including receiving point R1) and determines the electricity fee for each receiving point (each demander). Electricity meters are installed at each receiving point. For example, a meter M1 (e.g., a smart meter) is installed at receiving point R1 of facility 1. The amount of electricity supplied from the power system PG to facility 1 is measured sequentially by meter M1. Meter M1 sends the measured power supply sequentially to server 500.

[0037] The ESP obtains the demand value for each receiving point and determines the electricity price based on the demand value. In this embodiment, the power system PG is supplied with AC power classified as "high voltage" or "extra high voltage" to the receiving point R1 (facility 1). Here, AC power classified as "high voltage" has a voltage exceeding 600V and below 7000V. AC power classified as "extra high voltage" has a voltage exceeding 7000V. The receiving point R1 contains receiving equipment corresponding to the supplied power (high voltage or extra high voltage). The receiving equipment may include switching devices on the high-voltage side (primary side), transformers, and protective relays. The demand value for the receiving point R1 is equivalent to the cumulative amount of electricity supplied from the power system PG to the receiving point R1 (facility 1) within a unit period (i.e., the amount of electricity supplied per unit period). Such a unit period is usually referred to as a "time period". The length of the unit period is determined, for example, based on rules related to electricity trading or a contract between the ESP and the demander. In this embodiment, the length of the unit period is set to 30 minutes. Server 500, for example, can obtain the demand value every 30 minutes for power receiving point R1 and calculate the electricity bill based on the maximum demand value within a specified period (e.g., the most recent 12 months). Hereinafter, the maximum demand value within the specified period will be referred to as the "maximum demand value." Server 500 can increase the electricity bill as the maximum demand value increases. Furthermore, the length of the aforementioned period is not limited to 30 minutes and can be appropriately varied.

[0038] Server 500 requests the electricity bill calculated as described above from the demand party. For example, server 500 sends a notification related to the electricity bill request to terminal UT. Electronic settlement of electricity bills can also be performed between terminal UT and server 500 based on user actions performed on terminal UT.

[0039] Hereinafter, the power supplied from the power system PG to the receiving point R1 (facility 1) will sometimes be referred to as "external power". The receiving point R1 is connected to the distribution panel 11 via the wire PL1. External power is input from the power system PG through the receiving point R1 and the wire PL1 into the distribution panel 11. Meters M2 and M3 are installed on the wire PL1. Meters M2 and M3 respectively detect the amount of electricity (power supply) supplied from the power system PG to the receiving point R1 (facility 1). Meter M2 is the meter corresponding to the EMS controller 12, and outputs a signal recognizable by the EMS controller 12. Meter M2 sequentially outputs a signal indicating the detected power supply value to the EMS controller 12. Meter M3 is the meter corresponding to the battery station 100. Meter M3 outputs a signal recognizable by the control device 111 of the battery station 100. Meter M3 sequentially outputs a signal indicating the detected power supply value to the battery station 100 (control device 111).

[0040] The distribution panel 11 distributes the input external power to multiple circuits (secondary circuits) within facility 1. The secondary circuits can be protected by fuses or circuit breakers. The distribution panel 11 may include circuitry for processing involved in power regulation (e.g., power conversion and input / output adjustment). In this embodiment, the distribution panel 11 distributes the input external power to battery station 100, air conditioning unit 210, EVSE 220, and electrical load 230. Battery station 100, air conditioning unit 210, EVSE 220, and electrical load 230 are connected to the distribution panel 11 via wires PL2, PL31, PL32, and PL33, respectively. Wire PL33 can be connected to one or more sockets located within building 10. Power can be supplied from the distribution panel 11 to the electrical load 230 via the socket by connecting the power cable of the electrical load 230 to the socket. The EMS controller 12 can operate using power from the distribution panel 11 or from other power sources (e.g., a drive battery).

[0041] Vehicle 20 is configured to include a battery B1, which can be charged, for example, using EVSE220. The battery B1 may be mounted in vehicle 20 as a battery pack. Vehicle 20 is configured to operate using the electricity output from battery B1. Vehicle 20 may include a motor that uses the output power from battery B1 to rotate the drive wheels of vehicle 20. Vehicle 20 includes an ECU (Electronic Control Unit). Vehicle 20 may be a battery electric vehicle (BEV) without an internal combustion engine, a plug-in hybrid electric vehicle (PHEV) with an internal combustion engine, or another type of electric vehicle (xEV).

[0042] The EVSE220, for example, is configured to be electrically connected to the vehicle 20 via a charging cable. Figure 1In the example shown, the vehicle 20 and EVSE220 are electrically connected by connecting the front end (connector) of the charging cable connected to EVSE220 to the socket of vehicle 20 (inserting into the socket). The connector of the charging cable is configured to be detachable from the socket of vehicle 20. EVSE220 has a built-in computer configured to communicate with EMS controller 12. EVSE220 is controlled by EMS controller 12. EVSE220 is configured to use external power to charge the battery B1 of vehicle 20 when it is electrically connected to EVSE220. EVSE220 performs charging of battery B1 according to requests from users of vehicle 20. In addition, EVSE220 is configured to request vehicle 20 to discharge based on instructions from EMS controller 12. The power discharged from battery B1 of vehicle 20 when it is electrically connected to EVSE220 is input to the distribution panel 11 via EVSE220. The EVSE220 is configured to change the output destination (vehicle 20 or switchboard 11) and the amount of output power based on instructions from the EMS controller 12. The switchboard 11 will output the power input from the EVSE220 to at least one of the wires PL31 and PL33.

[0043] Figure 2 This is a diagram used to illustrate battery station 100. (Refer to...) Figure 2 The battery station 100 is configured to have a replacement battery that can be replaced with the vehicle's onboard battery and to provide a replacement battery. The battery station 100 can provide a replacement battery upon request from the vehicle 20 (the vehicle user). In this embodiment, the battery station 100 is configured to remove battery B1 from the vehicle 20 and install another battery B2 into the vehicle 20. The battery B2 installed in the vehicle 20 is in contact with battery B1 (…) within the vehicle 20. Figure 1 They function similarly. Batteries B1 and B2 are respectively one example of the "vehicle battery" and "replacement battery" involved in this disclosure.

[0044] In addition to the management unit 110 and the battery storage unit 120, the battery station 100 of this embodiment also includes a supply device 123, a replacement device 124, a recycling device 125, an inspection device 126, and a filling device 127. The battery storage unit 120 includes a receiving section 121 (e.g., a storage compartment) and a charger 122. The receiving section 121 stores multiple batteries B2 for supplying to the vehicle. The supply device 123, the recycling device 125, and the filling device 127 respectively transport the batteries. Their transport methods are arbitrary; they can be conveyor systems or systems utilizing transport robots.

[0045] In addition to the control device 111, the management unit 110 also includes a communication device 112 and a display device 113. The control device 111 includes a processor 111a and a storage device 111b. The storage device 111b distinguishes and stores information (such as charge level) related to each battery B2 stored in the battery storage unit 120 using battery identification information (battery ID). The control device 111 communicates with external devices (e.g., [missing information]) via the communication device 112. Figure 1 The terminal UT shown communicates with the device. The display device 113 is, for example, a touch panel display. The display device 113 displays information according to the instructions from the control device 111. In addition, the display device 113 outputs information input by the user to the control device 111.

[0046] The control device 111 performs battery replacement control according to a request from the user of vehicle 20. Specifically, the supply device 123 and the replacement device 124, according to instructions from the control device 111, replace battery B1 of vehicle 20 with battery B2 in the following sequence: The replacement device 124 removes battery B1 (the depleted battery) from vehicle 20. Then, the supply device 123 transports (supplyes) battery B2 from the receiving section 121 to the replacement device 124. Next, the replacement device 124 installs the supplied battery B2 into vehicle 20. Thus, the battery replacement of vehicle 20 is completed.

[0047] Additionally, the control device 111 performs control for reusing the battery obtained from the vehicle. Specifically, the recycling device 125, the inspection device 126, and the filling device 127 operate according to instructions from the control device 111, for example, as follows: The battery B1 removed from the vehicle 20 is recycled by the recycling device 125. Then, the inspection device 126 inspects the recycled battery B1. The filling device 127 fills the receiving section 121 with the battery B1 that passes the inspection. The battery B1 filled in the receiving section 121 is treated as battery B2. Thus, the battery recycled from the vehicle is reused. The charger 122 charges the battery B2 filled in the receiving section 121 until its charge capacity reaches or exceeds a predetermined value. Therefore, a battery B2 with a charge capacity exceeding the predetermined value can be provided to the vehicle. Batteries B1 that fail the inspection can be reused for purposes other than vehicle batteries or discarded.

[0048] Furthermore, the method for replacing the vehicle battery is not limited to the methods described above. For example, a handling device, movable module, or handling robot (not shown) can move the vehicle to adjust its position. Alternatively, the user can install a replacement battery provided from a battery station into the vehicle. Alternatively, the user can replace the battery manually, instead of the replacement device 124.

[0049] In this embodiment, Figure 1The battery station 100 and its accessories (electrical cable PL2, meter M3, etc.) shown are equivalent to equipment subsequently added to facility 1. All other equipment (including air conditioning unit 210, EVSE 220, and electrical load 230) are equivalent to existing equipment. This existing equipment was present in facility 1 before the addition of the battery station 100. Air conditioning unit 210, EVSE 220, and electrical load 230 are each controlled by EMS controller 12. On the other hand, the battery station 100 is controlled by control device 111 and operates independently. The control logic of control device 111 is black-boxed and cannot be seen from the outside. Such a battery station 100 has the advantage of operating independently as designed even without cooperation with other equipment and is less prone to malfunctions caused by the influence of other equipment. However, in such a facility 1, it is not necessarily easy to coordinate the control device (EMS controller 12) that controls the existing equipment and the control device 111 that controls the added battery station 100. Therefore, when facility 1 uses existing equipment and the added battery station 100 to adjust the power supply and demand of the power system PG, there is a possibility that the control of both parties will interfere and the use of resources (air conditioning equipment 210, EVSE 220, power load 230, battery station 100, etc.) will be unnecessarily restricted.

[0050] Therefore, the facility 1 (supply target) according to this embodiment, by implementing the control method described below, can appropriately control the power demand using multiple resources controlled by different control devices. Specifically, Figure 2 The control device 111 of the battery station 100 shown and Figure 1 The EMS controller 12 shown executes respectively Figure 3 The processing flows F1 and F2 are shown. Figure 3 This is a flowchart illustrating the control method involved in this implementation. In the flowchart, "S" represents a step.

[0051] If the target period begins, control device 111 starts processing flow F1, and EMS controller 12 starts processing flow F2. The target period can be set as the aforementioned unit period (a period of 30 minutes). Specifically, processing flows F1 and F2 are executed for a certain unit period (e.g., 0:00~0:30). When that target period ends, the next unit period (e.g., 0:30~1:00) is set as a new target period, and processing flows F1 and F2 are executed for the new target period. This continues thereafter, setting a new target period each time it ends. Therefore, processing flows F1 and F2 are essentially executed continuously. The target period is changed every 30 minutes. Thus, processing flows F1 and F2 are executed for each unit period, adjusting the power demand (demand value) for each unit period. Processing flows F1 and F2 will be explained below.

[0052] exist Figure 3 In the processing flow F1 shown, the control device 111 obtains the detected value of the power supply from the meter M3 in S11 and calculates the power requirement, representing the amount of electricity supplied from the power system PG to facility 1. In this embodiment, the cumulative value of the amount of electricity supplied from the power system PG to facility 1 (power receiving point R1) during the target period is calculated as the power requirement. Specifically, the control device 111 calculates the power requirement by accumulating the power supply (power consumption in facility 1) detected by the meter M3 during the target period.

[0053] Next, in S12, the control device 111 determines whether peak cut-off control (S15), which will be described later, has been performed. In the initial processing routine after the start of the object period, since peak cut-off control has not yet been performed, the determination in S12 is negative, and the process proceeds to S13.

[0054] In S13, the control device 111 obtains the first threshold (hereinafter referred to as "Th1"). In this embodiment, the control device 111 determines Th1 based on the first equation. Although it will be described in detail later, the first equation represents the relationship between the elapsed time during the object period and Th1 in proportion to a first proportional constant (see reference). Figure 4 In the next step, S14, the control device 111 determines whether the power demand calculated in S11 exceeds Th1. Since the power demand is small in the initial processing routine after the start of the target period, the determination in S14 is negative, and the process proceeds to S16. In S16, the control device 111 determines whether the target period has elapsed. Since the end time of the target period has not yet arrived in the initial processing routine after the start of the target period, the determination in S16 is negative, and the process returns to S11.

[0055] If the power demand calculated by S11 during the target period exceeds Th1 (as in S14), then in S15, the control device 111 performs peak cutoff control. The peak cutoff control in S15 is a control that causes the battery station 100 to perform a peak cutoff action (first adjustment action) to suppress the increase in power demand. However, in the control device 111, the logic (e.g., algorithm) of the peak cutoff control is black-boxed and cannot be seen from the outside.

[0056] If the process in S15 is executed, the process proceeds to S16. During the object period, if the condition in S16 is negative, the process returns to S11. However, if peak cutoff control is initiated in S15, and the condition in S12 is positive, the process proceeds to S15. Therefore, during the object period, the processes in S13 and S14 are no longer executed; on the other hand, peak cutoff control (S15) continues to be executed. Once peak cutoff control begins during the object period, the processes in S11, S12, S15, and S16 are repeatedly executed.

[0057] If the end time of the target period arrives, it is determined in S16 that yes, and the processing flow F1 ends. Therefore, the first adjustment action based on the above-mentioned peak cutoff control is no longer executed. In addition, if the power demand does not exceed Th1 and the end time of the target period arrives, the processing flow F1 ends without executing peak cutoff control (S15).

[0058] exist Figure 3 In the processing flow F2 shown, the EMS controller 12 obtains the detected power supply value from the electricity meter M2 in S21 and calculates the aforementioned power requirement. Specifically, the EMS controller 12 calculates the power requirement by accumulating the power supply detected by the electricity meter M2 (power consumption in facility 1) during the target period. Next, the EMS controller 12 determines in S22 whether the peak cutoff control (S27) described later has been executed. Since the peak cutoff control has not been executed in the initial processing routine after the start of the target period, the determination is negative in S22, and the process proceeds to S23.

[0059] In S23, the EMS controller 12 obtains the second threshold (hereinafter referred to as "Th2"). Although this will be explained in detail later, Th2 is a larger value than Th1 (S13) (see reference). Figure 4In this embodiment, the EMS controller 12 determines Th2 based on the second equation. The second equation indicates that the elapsed time during the target period is proportional to Th2 by a second proportional constant. In the next step, S24, the EMS controller 12 determines whether the power demand calculated in S21 exceeds Th2. Since the power demand is small in the initial processing routine after the start of the target period, the determination is negative in S24, and the process proceeds to S28. In S28, the EMS controller 12 determines whether the target period has elapsed. Since the end time of the target period has not yet arrived in the initial processing routine after the start of the target period, the determination is negative in S28, and the process returns to S21.

[0060] If the power demand calculated by S21 during the target period exceeds Th2 (yes in S24), then in S25, the EMS controller 12 obtains the respective states of the air conditioning unit 210 and EVSE 220. In the following S26, the EMS controller 12 selects at least one of the air conditioning unit 210 and EVSE 220 as the control target, for example, based on their respective states. In the following S27, the EMS controller 12 sends a control command instructing a peak cutoff action (second adjustment action) to suppress the increase in power demand to the control target selected in S26. The resource receiving the control command performs the second adjustment action.

[0061] If the process in S27 is executed, the process proceeds to S28. During the target period, if the condition in S28 is negative, the process returns to S21. However, if peak cutoff control is initiated in S27, and the condition in S22 is positive, the process proceeds to S25. Therefore, during the target period, the processes in S23 and S24 are no longer executed, while peak cutoff control (S27) continues to be executed. During the target period, after the aforementioned peak cutoff control is initiated, the processes in S21, S22, and S25 to S28 are repeatedly executed.

[0062] If the end time of the target period arrives, it is determined in S28 that yes, and the processing flow F2 ends. Therefore, the second adjustment action based on the above-mentioned peak cutoff control is no longer executed. In addition, if the power demand does not exceed Th2 and the end time of the target period arrives, the processing flow F2 ends without executing peak cutoff control (S27).

[0063] Figure 4 This diagram illustrates the actions of each resource in facility 1. Figure 4 In the middle, line L1 indicates that the execution occurred during the object's execution. Figure 3The diagram shows examples of power demand shifts during control (processing flows F1, F2). Line L2 represents a shift based on Th2 from Equation 2. Line L3 represents a shift based on Th1 from Equation 1. "t" in the time graph refers to the timing.

[0064] When the elapsed time during the object's period is represented by "ET", the first proportionality constant by "α", and the second proportionality constant by "β", the first equation is expressed as "Th1 = α × ET", and the second equation is expressed as "Th2 = β × ET". As shown by lines L2 and L3, β is greater than α. Figure 4 In the example shown, the duration of the event period is 30 minutes. Therefore, the maximum value of Th2 (hereinafter referred to as "P2") is expressed as "P2 = β × 30 minutes", and the maximum value of Th1 (hereinafter referred to as "P3") is expressed as "P3 = α × 30 minutes". P2 is greater than P3. α and β are set so that the electricity demand during the event period does not exceed the upper limit of demand P1. α is set, for example, by the user. β is set, for example, by the EMS controller 12. The upper limit of demand P1 can be set by the user. Alternatively, the EMS controller 12 can set the upper limit of demand P1 based on past electricity demand data.

[0065] exist Figure 4 In the example shown, during the period from the start time to t1 of the object's timeframe, the power demand (line L1) is below Th1 (line L3). Figure 3 In the processing flows F1 and F2 shown, the power demand is calculated in S11 and S21 respectively. In S13, the control device 111 obtains the latest Th1 based on the first formula, and in S14, it compares the power demand with Th1.

[0066] At t1, the electricity demand (line L1) exceeds Th1 (line L3). Therefore, in Figure 3 In step S15, the first adjustment action is initiated. This first adjustment action suppresses the increase in power demand. During the period from t1 to t2, the power demand (line L1) is greater than Th1 (line L3) but less than Th2 (line L2). Therefore, the first adjustment action is executed. Figure 3 S15), but the second adjustment action is not performed ( Figure 3 (S27). Then, at t2, the electricity demand (line L1) exceeds Th2 (line L2). Therefore, in Figure 3 In step S27, the second adjustment action begins, executing both the first and second adjustment actions. Therefore, the increase in electricity demand is suppressed not only through the first adjustment action but also through the second adjustment action.

[0067] As explained above, the control method involved in this embodiment includes Figure 3The processes shown are as follows. In the control system according to this embodiment, each process is executed by one or more processors executing programs stored in one or more memories. However, these processes can also be executed solely by hardware (electronic circuitry).

[0068] The control system involved in this embodiment is configured to control the power demand. The power demand represents the amount of electricity supplied from the power system PG (external power source) to facility 1 (the object of supply). Facility 1 includes a battery station 100. Facility 1 includes an air conditioning unit 210, an EVSE 220, and an electrical load 230, and an EMS controller 12 that controls them. The battery station 100, air conditioning unit 210, EVSE 220, and electrical load 230 are each configured to adjust the power demand. The control device 111 of the battery station 100 is configured to control the battery station 100 (more specifically, the power supply unit 111) independently of the EMS controller 12. Figure 2 The supply device 123, replacement device 124, and recycling device 125 shown are controlled. When the first initial condition is met, the battery station 100 begins a first adjustment action (peak cutoff action) to suppress the increase in power demand. When the power demand exceeds Th1 (the first threshold)... Figure 3 In S14, if the first start condition is met, then the second start condition is met. If the second start condition is also met in addition to the first start condition, at least one of the air conditioning equipment 210 and EVSE 220 begins a second adjustment action (peak cutoff action) to suppress the increase in power demand. If the power demand exceeds Th2 (the second threshold) (in Figure 3 (In S24, th2 is true), the second starting condition is true. Since th2 is greater than th1, the first starting condition is also true if the second starting condition is true.

[0069] In the control system of this embodiment, the control device 111 and the EMS controller 12 respectively perform control (processing flows F1 and F2). According to processing flows F1 and F2, even if the control device 111 and the EMS controller 12 do not cooperate, that is, even if they do not exchange control commands, the power demand can be appropriately controlled by each resource.

[0070] Based on the above configuration, the control system can essentially suppress the increase in power demand through the first adjustment action and execute the second adjustment action as needed. For example, as Figure 4 As shown by the dashed line L1a, the first adjustment action ( Figure 3 If S15 sufficiently suppresses the increase in electricity demand and the electricity demand during the target period does not exceed Th2, then the second adjustment action is not performed. Figure 3(S27). This prevents excessive restriction of resource usage. Furthermore, according to the above configuration, the first adjustment operation and the second adjustment operation are initiated sequentially based on an increase in electricity demand. Therefore, even if the control logic of at least one of the first and second control devices is black-boxed, excessive increases in electricity demand can be reliably suppressed.

[0071] In this embodiment, the first control device (control device 111) controls the first resource in such a manner that the first resource (battery station 100) begins a first adjustment operation when the first start condition is met and continues the first adjustment operation until the first end condition is met. Additionally, the second control device (EMS controller 12) controls the second resource in such a manner that the second resource (air conditioning equipment 210 and / or EVSE 220) begins a second adjustment operation when both the first and second start conditions are met and continues the second adjustment operation until the second end condition is met. The first start condition is met when the power demand exceeds Th1 (the first threshold) (see reference). Figure 3 (S14). The first termination condition is met after the object's duration has elapsed (see S14). Figure 3 (S16). The second starting condition is met when the electricity demand exceeds Th2 (the second threshold), which is greater than Th1 (refer to S16). Figure 3 (S24). The second termination condition is met after the object's duration has elapsed (see S24). Figure 3 (S28).

[0072] Based on the above configuration, excessive increases in power demand during the target period can be reliably suppressed. Since the peak cutoff control (control logic) involved in the first control device is black-boxed, the first termination condition may also be met if other conditions are satisfied, in addition to the case where the target period has elapsed. Peak cutoff control may unexpectedly terminate for some reason (see [reference]). Figure 3 (The dashed line in the diagram). If the first adjustment action ends due to the termination of peak cutoff control, and the increase in power demand is no longer sufficiently suppressed, then as follows: Figure 4 As shown by the dashed line L1b, the electricity demand increases and exceeds Th2. Therefore, by performing the second adjustment action instead of the first adjustment action, the increase in electricity demand can be suppressed. Thus, the situation where the electricity demand exceeds the upper limit P1 during the target period can be prevented.

[0073] In the peak cutoff control involved in control device 111 ( Figure 3In S15), the control device 111 controls the battery station 100 by performing at least one of the following processes: limiting the power consumption of the battery station 100 (hereinafter referred to as "Action X1"), and discharging the power stored in the replacement battery to the building 10 (distribution panel 11) (hereinafter referred to as "Action X2"). According to Actions X1 and X2, an increase in power demand can be reliably suppressed. Because the power consumption of the battery station 100 is reduced, the power supply from the power system PG to the facility 1 is also reduced. Because the power supplied from the battery station 100 is used by the facility 1, the power supply from the power system PG to the facility 1 is reduced. The battery station 100 corresponds to one example of the "first resource" involved in this disclosure. Actions X1 and X2 each correspond to one example of the "first adjustment action" involved in this disclosure.

[0074] In action X1, battery replacement involving battery station 100 can be prohibited, or the number of battery replacements per unit time can be limited to a specified number. Control device 111 can increase the discharge power in action X2 as the power demand increases. Figure 1 Only one battery station is shown, but facility 1 can also have multiple battery stations that operate independently. Figure 3 In the peak cutoff control of S15, the increase in power demand can be suppressed by having these battery stations perform at least one of actions X1 and X2 respectively.

[0075] Peak cutoff control involved in EMS controller 12 ( Figure 3 In S27), the EMS controller 12 controls the air conditioning unit 210 and EVSE 220 by performing at least one of the following processes: limiting the power consumption of the air conditioning unit 210 (hereinafter referred to as "Action Y1"); limiting the power consumption of the EVSE 220 (hereinafter referred to as "Action Y2"); and discharging the power stored in the battery of the vehicle connected to the EVSE 220 to the building 10 (distribution panel 11) (hereinafter referred to as "Action Y3"). According to Actions Y1 to Y3, the increase in power demand can be reliably suppressed. By reducing the power consumption consumed by each resource in facility 1, the amount of power supplied from the power system PG to facility 1 is also reduced. By using the power supplied from the EVSE 220 in facility 1, the amount of power supplied from the power system PG to facility 1 is reduced. The air conditioning unit 210 and EVSE 220 are respectively equivalent to one example of the "second resource" involved in this disclosure. Actions Y1, Y2, and Y3 are each equivalent to one example of the "second adjustment action" involved in this disclosure.

[0076] In action Y1, air conditioning involving the air conditioning unit 210 can be disabled. Alternatively, in action Y1, the upper and lower limits of the set temperature of the air conditioning unit 210 can be made close to a reference temperature (e.g., the current outside air temperature). In action Y2, charging involving the EVSE 220 can be disabled, and the output power of the EVSE 220 can also be limited. The EMS controller 12 can lower the upper limit of the output power of the EVSE 220 in action Y2 as the power demand increases. The EMS controller 12 can increase the discharge power in action Y3 as the power demand increases. The EMS controller 12 can... Figure 3 In S26, the controlled object is determined based on meteorological forecast information (such as predicted outside air temperature and weather) and the status of various resources (such as the usage and reservation status of air conditioning equipment 210 and EVSE220). Figure 1 In the diagram, one air conditioning unit and one power supply unit are shown, but facility 1 may also have multiple air conditioning units and multiple power supply units controlled by EMS controller 12. Furthermore, in Figure 3 In S26, at least one of them can be selected as the controlled object. Figure 3 In the peak cutoff control of S27, the increase in power demand can also be suppressed by having the selected controlled object execute at least one of actions Y1, Y2, Y3.

[0077] In this embodiment, the control device 111 controls the battery station 100 independently of the EMS controller 12. The EMS controller 12 controls the air conditioning unit 210, EVSE 220, and electrical load 230 independently of the control device 111. No control signals are exchanged between the control device 111 and the EMS controller 12. However, the terminal UT (user terminal) is configured to communicate with both the EMS controller 12 and the control device 111 via installed application software. The control device 111 can also be configured in a first type with customizable settings. Figure 5 This is a diagram used to illustrate an example of changing the first proportional constant (α) of Equation 1 according to a request from a user.

[0078] Reference Figure 5The terminal UT receives a request from the user to change the first equation. If the user requests a change to the first equation, the terminal UT transmits the request to the EMS controller 12 and the control device 111 respectively. The control device 111 changes the first proportional constant according to the user's request. The EMS controller 12 changes the second proportional constant according to the change in the first proportional constant. At this time, the EMS controller 12 changes the second proportional constant in such a way that the second proportional constant is larger than the first proportional constant. With this configuration, it is easy to set appropriate first and second thresholds. The first proportional constant (α) and the second proportional constant (β) correspond to the slopes of the first and second equations, respectively. Figure 5 In the diagram, lines L3 and L2 represent the first and second equations when the first and second proportional constants are standard values, respectively. The standard values ​​for each proportional constant can be default values.

[0079] For example, a request to change Equation 1 could request an increase in the first proportional constant relative to the standard value (line L3). Control device 111, based on such a request, such as in... Figure 5 The first proportional constant is increased as shown by line L3a. Additionally, the EMS controller 12, based on such a request, such as in... Figure 5 The second proportional constant is increased as shown by line L2a. Alternatively, a request to change the first equation can be made to decrease the first proportional constant relative to the standard value (line L3). Control device 111, upon such a request, will... Figure 5 The first proportional constant is reduced as shown by line L3b. Additionally, the EMS controller 12, based on such a request, such as in... Figure 5 The second proportional constant is reduced as shown by line L2b. Furthermore, a request to change the first equation can also be made to change the first proportional constant to a user-specified value.

[0080] As described above, the control device 111 changes the first proportional constant according to a request from the user. On the other hand, the control device 111 does not change the first constant unless a request is received from the user. That is, the control device 111 is configured to change Th1 according to the input from the user, but not according to the input from the EMS controller 12. With this configuration, the user sets the appropriate Th1 for the control device 111 without relying on the EMS controller 12. Such a control device 111 easily hides the control logic (black box) and appropriately suppresses the increase in power demand through the first adjustment action.

[0081] In the above embodiment, the peak cutoff operation involving the first resource (battery station 100) begins when the first start condition is met. Furthermore, when both the first and second start conditions are met, the peak cutoff operation involving the second resource (air conditioning equipment 210, EVSE 220) begins. That is, the first resource prioritizes suppressing increases in power demand. However, it is not limited to this; the second resource may also begin the peak cutoff operation (adjustment operation) before the first resource. Figure 6 It means Figure 3 The flowchart of the first variation of the process shown.

[0082] Reference Figure 6 In this modified example, if the start time of the object period is the beginning time, the control device 111 starts processing flow F1A, and the EMS controller 12 starts processing flow F2A. For flow F1A, besides replacing S13 and S14 with S13A and S14A, the process is similar to flow F1 (…). Figure 3 The same as processing flow F2A. Except for replacing S23 and S24 with S23A and S24A, it is identical to processing flow F2 (…). Figure 3 )same.

[0083] In processing flow F2A, EMS controller 12 acquires Th1 in S23A and determines whether the power demand exceeds Th1 in S24A. Then, if the power demand calculated in S21 exceeds Th1 (which is true in S24A), EMS controller 12 executes processes S25-S27. Consequently, the first adjustment operation based on peak cutoff control begins in S27. On the other hand, in processing flow F1A, control device 111 acquires Th2 in S13A and determines whether the power demand exceeds Th2 in S14A. Then, if the power demand calculated in S11 exceeds Th2 (which is true in S14A), control device 111 begins the second adjustment operation based on peak cutoff control in S15. Th1 and Th2 are... Figure 4 and Figure 5 The settings are as shown. That is, Th2 is larger than Th1.

[0084] In the above-described modification, if the first start condition is met (yes in S24A), at least one of the air conditioning unit 210 and EVSE 220 begins peak cutoff operation (first adjustment operation) in S27. The first adjustment operation continues until the first end condition is met. If the end time of the target period arrives (yes in S28), the first end condition is met. If the second start condition is also met in addition to the first start condition (yes in S14A), the battery station 100 begins peak cutoff operation (second adjustment operation) in S15. The second adjustment operation continues until the second end condition is met. If the end time of the target period arrives (yes in S16), the second end condition is met. The control system involved in the above-described modification is basically able to suppress the increase in power demand through the second resource and suppress the increase in power demand through the first resource as needed.

[0085] Depending on the battery station, in addition to the peak cutoff control content (control logic), the start condition of the peak cutoff control may also be black-boxed. The EMS controller 12 can be configured to determine the first start condition by learning the operation of the battery station 100, and set the second start condition based on the determined first start condition. Figure 7 It means Figure 3 The flowchart of the second variation of the process shown.

[0086] Reference Figure 7 In this variant, if the start time of the object period is the beginning time, then the control device 111 begins processing flow F1 (and Figure 3 (The processing flow F1 shown is the same) EMS controller 12 begins processing flow F2B. In processing flow F2B, EMS controller 12 obtains the power supply detection value from meter M2 in S21 and calculates the power requirement. In the following S31, EMS controller 12 determines whether the learning of the operation of battery station 100 (S32 and S33 described later) is complete. Since the learning is not yet complete in the initial processing routine after the start of the object period, the determination is negative in S31, and the process proceeds to S32. In S32, EMS controller 12 determines, for example, whether peak cutoff control (first adjustment action) has been started by battery station 100 based on the detection value of meter M2. If the determination is negative in S32, the process returns to S21. If peak cutoff control has been started by battery station 100 (yes in S32), EMS controller 12 records various data related to the first start condition (e.g., formula 1) in S33. The data recorded here is the data from when battery station 100 begins peak cutoff control (first adjustment action), including, for example, the elapsed time since the start of the target period and the power demand. If processing S33 was executed, the process proceeds to S28.

[0087] In S28, the EMS controller 12 determines whether the object period has elapsed. If the object period has elapsed, the determination in S28 is negative, and the process returns to S21. Until sufficient data (e.g., a specified amount of data) to determine the first start condition (e.g., formula 1) is obtained in S33, the determination in S31 is negative, and the learning-related processes (S32, S33) are repeatedly executed. Then, if sufficient data is obtained in S33, the determination in S31 is positive, and the process proceeds to S34.

[0088] In S34, the EMS controller 12 determines whether the second start condition has not been set. If the second start condition has not been set (yes in S34), the process proceeds to S35. In S35, the EMS controller 12 uses the data obtained in S33 to determine the first start condition set for the battery station 100. The EMS controller 12 can determine α (the first proportional constant) of the first formula based on data at the start of the first adjustment action (e.g., elapsed time and power demand during the target period). Then, in S36, the EMS controller 12 sets the second start condition (e.g., the second formula) based on the determined first start condition. The EMS controller 12 can determine the first start condition based on α of the first formula and the data obtained in S35. Figure 4 The upper limit value P1 shown in the diagram is used to determine β (the second proportional constant) in the second equation, and the resulting second equation is set. β in the second equation is larger than α in the first equation. Then, the process proceeds to S20. In S20, execution... Figure 8 The power control shown.

[0089] Figure 8 This is a flowchart showing the details of S20. For example... Figure 8 As shown, S20 is a combination of... Figure 3 The processing flow shown is S22~S27. In S23, the EMS controller 12 is based on... Figure 7 The second formula set for EMS controller 12 in S36 is used to obtain Th2. and Figure 3 The processing flow F2 shown is similar; if the condition is not met in S24 or the processing in S27 is executed, then the processing continues. Figure 7 S28.

[0090] exist Figure 7 In the processing flow F2B shown, if the second start condition is set, then in S34, the condition is checked and found to be false, and the process skips S35 and S36 to proceed to S20. During the object period, S20 is executed repeatedly. Then, if the end time of the object period arrives (in S28, it is true), the processing flow F2B ends.

[0091] According to the control system described in the above-described modification, even when the first start condition in the battery station 100 is black-boxed, an appropriate second start condition can be set in conjunction with the first start condition determined through learning. The EMS controller 12 may, in a later object period, not perform the learning process for determining the first start condition and the setting process for the second start condition if the first start condition is determined and the second start condition is set based on that first start condition. Alternatively, the EMS controller 12 may perform the learning process for determining the first start condition and the setting process for the second start condition for each object period, and set the second start condition by confirming the first start condition for each object period.

[0092] Th1 (first threshold) and Th2 (second threshold) are not necessarily based on Figure 4 and Figure 5 The method shown is used to set it. The relationship between the elapsed time and each threshold during the object period can be appropriately changed; it can be a linear function with an intercept or a quadratic function. Figure 9 This is a diagram showing variations of Th1 and Th2 respectively. (Refer to...) Figure 9 Th2, represented by line L4, remains constant during the object period. Th1, represented by line L5, also remains constant during the object period. Th2 is larger than Th1 and smaller than the upper limit of demand P1. Thus, Th1 and Th2 can each be fixed values.

[0093] The length of the target period can be set arbitrarily. The length of the target period can be more than 5 minutes and less than 5 hours. The length of the target period can be approximately 30 minutes (e.g., more than 15 minutes and less than 45 minutes) or approximately 2 hours (e.g., more than 1 hour and less than 3 hours). The control system can continue controlling the power demand by setting the end time of a target period as the start time of the next target period after a certain target period has elapsed.

[0094] The first and second resources can be appropriately modified. For example, only one of the air conditioning unit 210 and EVSE 220 (e.g., only air conditioning unit 210) can function as the second resource. Alternatively, the electrical load 230 can function as the second resource, in addition to or replacing at least one of the air conditioning unit 210 and EVSE 220. Figure 3 In step S26, the power load 230 is selected as the controlled object, and in step S27, the power load 230 performs the second adjustment action. In S27, the EMS controller 12 can control the power load 230 to perform a process of limiting the power consumption of the power load 230 (hereinafter referred to as "Action Y4"). In S27, at least one of Actions Y1 to Y3 can be executed together with Action Y4.

[0095] Figure 1 The configuration of the facilities shown can be changed appropriately.

[0096] Figure 10 It means Figure 1 The diagram shows a first variation of the configuration of the facility. Figure 10 The facility 1A shown basically has the same Figure 1 The facility 1A has the same configuration as shown in Facility 1. However, Facility 1A also includes a PCS (Power Conditioning System) 240, a space-mounted energy storage device 241, and a power generation device 242. PCS 240 is connected to the distribution panel 11 via wire PL34. EMS controller 12 is connected to PCS 240 and can communicate with it.

[0097] The power generation device 242 is, for example, a solar power generation device. Meters M4 and M5 are installed on the wire PL41 connecting the power generation device 242 and PCS240. Meters M4 and M5 respectively detect the amount of electricity generated by the power generation device 242 (power generation). Meter M4 outputs a signal indicating the detected power generation value sequentially to the EMS controller 12. Meter M5 outputs a signal indicating the detected power generation value sequentially to the battery station 100 (control device 111). Furthermore, the power generation device 242 may include a wind power generation device or a cogeneration system.

[0098] PCS240 is connected to energy storage device 241 via wire PL42. PCS240 includes various circuits for power regulation processes (such as power conversion and input / output adjustment). The power generated by generator 242 is stored in energy storage device 241. PCS240 converts the power generated by generator 242 into power suitable for charging energy storage device 241, and charges energy storage device 241 with the converted power. In addition, PCS240 converts at least one of the power generated by generator 242 and the power discharged by energy storage device 241 into specified alternating current according to instructions from EMS controller 12, and outputs the resulting alternating current to distribution panel 11.

[0099] In facility 1A, the energy storage device 241 may function as a second resource, in addition to or replacing at least one of the air conditioning equipment 210, EVSE 220, and electrical load 230. Figure 3In step S26, the energy storage device 241 is selected as the controlled object. In the following step S27, the energy storage device 241 performs the second adjustment action. In S27, the EMS controller 12 can also control the energy storage device 241 via PCS240 to perform the process of discharging the power stored in the energy storage device 241 to the building 10 (distribution panel 11) (hereinafter referred to as "Action Y5"). In S27, at least one of Actions Y1 to Y4 can also be performed together with Action Y5.

[0100] It is possible Figure 3 S14, S24 (or Figure 6 In S14A and S24A, the value obtained by subtracting the cumulative value of the electricity supplied to facility 1A by power system PG during the target period from the cumulative value of the electricity generated by power generation equipment 242 during the target period is compared with each threshold (Th1, Th2).

[0101] Figure 11 It means Figure 1 The diagram shows a second variation of the configuration of the facility. Figure 11 The facility 1B shown replaces EMS controller 12 and battery station 100 by including EMS controllers 12A and 12B. EMS controller 12A is a computer that is connected to and can communicate with EVSE 220. EMS controller 12B is a computer that is connected to and can communicate with air conditioning unit 210 and electrical load 230, respectively. EMS controller 12A is configured to control EVSE 220 independently of EMS controller 12B. No control signals are exchanged between EMS controller 12A and EMS controller 12B. EMS controller 12A and EVSE 220 may be devices subsequently added to facility 1B. The control logic of EMS controller 12A can be black-boxed. EMS controller 12A may be a controller dedicated to EVSE 220. In this variation, EMS controller 12A and EMS controller 12B correspond to one example of the "first control device" and "second control device" involved in this disclosure, respectively. EVSE 220 functions as a first resource, and air conditioning unit 210 functions as a second resource. It can be the EMS controller 12A that executes processing flow F1 ( Figure 3 ), EMS controller 12B executes processing flow F2 ( Figure 3 Alternatively, the EMS controller 12A can execute processing flow F1A. Figure 6 ), EMS controller 12B executes processing flow F2A ( Figure 6 Alternatively, the EMS controller 12A can execute processing flow F1. Figure 7 ), EMS controller 12B executes processing flow F2B ( Figure 7Furthermore, the EVSE220 can be charged not only via contact charging (plug-in charging) but also via contactless charging.

[0102] The second termination condition can be modified appropriately. For example, the second termination condition can also be met when other requirements are satisfied, in addition to the case during the object's lifetime.

[0103] Figure 12 It means Figure 3 The flowchart for the third variation of the process is shown. (Refer to...) Figure 12 In this variant, if the start time of the object period is the beginning time, then the control device 111 begins processing flow F1 (and Figure 3 (The processing flow F1 shown is the same), EMS controller 12 starts processing flow F2C. For processing flow F2C, except for the addition of S27A, it is the same as processing flow F2 ( Figure 3 The process is the same. In the processing flow F2C, if the processing in S27 is executed, the EMS controller 12 determines in the following S27A whether a predetermined time has elapsed since the start of the peak cutoff action (second adjustment action) involving the second resource. If the predetermined time has not elapsed since the start of the second adjustment action (no in S27A), the processing proceeds to S28. On the other hand, if the predetermined time has elapsed since the start of the second adjustment action (yes in S27A), the processing flow F2C ends before the end time of the object period. Thus, the second adjustment action is no longer executed. With this configuration, the excessive restriction of resource usage can be prevented.

[0104] Figure 13 It means Figure 3 The flowchart for the fourth variation of the process is shown. (Refer to...) Figure 13 In this variant, if the start time of the object period is the beginning time, then the control device 111 begins processing flow F1 (and Figure 3 (The processing flow F1 shown is the same), EMS controller 12 starts processing flow F2D. For processing flow F2D, except for the addition of S27B, it is the same as processing flow F2 ( Figure 3The same applies. In the processing flow F2D, if the processing in S27 is executed, the EMS controller 12 determines in the following S27B whether the discharge charge of the second resource used for the peak cutoff action (second adjustment action) (i.e., the cumulative value of the discharge charge of the second resource during the target period) exceeds a predetermined reference value. If the discharge charge of the second resource used for the second adjustment action does not exceed the reference value (no in S27B), the processing proceeds to S28. On the other hand, if the discharge charge of the second resource used for the second adjustment action exceeds the reference value (yes in S27B), the processing flow F2D ends before the end time of the target period. Thus, the second adjustment action is no longer executed. With this configuration, insufficient usable power (stored power) during a power outage in facility 1 can be suppressed.

[0105] exist Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 12 , Figure 13 The processing flow shown can be modified as needed. The order of processing can be changed according to the purpose, and unnecessary steps can be omitted. In addition, the content of any process can be changed, and steps can be added.

[0106] The various variations described above can also be implemented in any combination.

[0107] Embodiments of the present invention have been described, but the embodiments disclosed herein should be considered illustrative in all respects and not restrictive. The scope of the invention is shown by the technical solutions and is intended to include all modifications within the meaning and scope of equivalents to the technical solutions.

Claims

1. A control system for controlling the amount of electricity required, representing the amount of electricity supplied from an external power source to a target object, wherein, The supply targets include a first resource and a second resource configured to adjust the electricity demand. The control system includes a first control device for controlling the first resource and a second control device for controlling the second resource. The first control device is configured to control the first resource independently of the second control device. If the first initial condition is met, one of the first resource and the second resource begins a first adjustment action to suppress the increase in the power demand. If the second start condition is also met in addition to the first start condition, the other party of the first resource and the second resource begins a second adjustment action to suppress the increase in the power demand.

2. The control system according to claim 1, wherein, The first control device is configured to control the first resource such that, when the first start condition is met, the first adjustment action begins, and the first adjustment action continues until the first end condition is met. The second control device is configured to control the second resource such that, when both the first start condition and the second start condition are met, the second adjustment action begins, and the second adjustment action continues until the second end condition is met. The first starting condition is met when the electricity demand exceeds the first threshold. The second starting condition is met when the electricity demand exceeds a second threshold that is greater than the first threshold.

3. The control system according to claim 2, wherein, The power requirement is the cumulative amount of electricity supplied from the external power source to the object during the target period. The first termination condition and the second termination condition are respectively met when the object period has elapsed.

4. The control system according to claim 3, wherein, The first control device is configured to determine the first threshold based on a first formula representing the relationship between the elapsed time during the object period and the first threshold as a first proportional constant. The second control device is configured to determine the second threshold based on a second formula representing the relationship between the elapsed time during the object period and the second threshold as a second proportional constant. The first control device is configured to change the first proportional constant according to a request from the user, and on the other hand, not to change the first formula unless a request is received from the user. The second control device is configured to change the second proportional constant within a range larger than the first proportional constant.

5. The control system according to claim 2, wherein, The first control device is configured to change the first threshold based on input from the user, but not based on input from the second control device.

6. The control system according to any one of claims 1 to 5, wherein, The first resource includes a battery station configured to have and provide a replacement battery that can be swapped with the vehicle battery. The first control device is a computer mounted on the battery station. The second resource includes power supply equipment and air conditioning equipment for the vehicle. The second control device is a computer that is connected to and can communicate with the power supply equipment and the air conditioning equipment respectively.

7. The control system according to claim 6, wherein, The first adjustment action includes at least one of the following processes: Limit the power consumption of the battery station; and The battery station discharges the electricity stored in the replacement battery. The second adjustment action includes at least one of the following processes: Limit the power consumption of the air conditioning equipment; Limit the power consumption of the power supply equipment; and The power stored in the battery of the vehicle connected to the power supply equipment is discharged.

8. The control system according to any one of claims 1 to 5, wherein, The first resource includes power supply equipment for vehicles. The first control device is a computer that is connected to the power supply equipment and is capable of communication. The second resource includes air conditioning equipment. The second control device is a computer that is connected to the air conditioning equipment and can communicate with it.

9. The control system according to any one of claims 2 to 5, wherein, The second control device is configured to determine the first start condition by learning the action of the first resource, and to set the second start condition based on the determined first start condition.

10. The control system according to claim 1, wherein, The first resource includes a battery station configured to have and provide a replacement battery that can be swapped with the vehicle battery. The first control device is a computer mounted on the battery station. The second resource includes air conditioning equipment. The second control device is a computer that is connected to the air conditioning equipment and can communicate with it. The second control device is configured to control the second resource such that, when the first start condition is met, the second resource begins the first adjustment action, and the first adjustment action continues until the first end condition is met. The first control device is configured to control the first resource such that the second adjustment action begins when both the first start condition and the second start condition are met, and the second adjustment action continues until the second end condition is met.

11. The control system according to claim 10, wherein, The power requirement is the cumulative amount of electricity supplied from the external power source to the object during the target period. The first starting condition is met when the electricity demand exceeds the first threshold. The second starting condition is met when the electricity demand exceeds a second threshold that is greater than the first threshold. The first termination condition and the second termination condition are respectively met when the object period has elapsed.

12. A control method for controlling the power demand, which represents the amount of electricity supplied from an external power source to a target object, wherein, The supply targets include a first resource and a second resource configured to adjust the electricity demand. The method includes the following processing: If the first initial condition is met, one of the first resource and the second resource begins a first adjustment action to suppress the increase in the power demand; and If the second start condition is also met in addition to the first start condition, the other party of the first resource and the second resource begins a second adjustment action to suppress the increase in the power demand.

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