Power management systems, servers, and methods for regulating power supply and demand.

Abstract

This invention is a power management system (100) comprising: a CEMS server (2) that outputs DR requests for multiple power regulation resources in a manner that controls the same amount of power simultaneously during each specified period. The multiple power regulation resources include energy storage type DERs (16-19) that store supplied power in at least one of the energy forms of electricity, heat, and gaseous fuel; and consumption type DERs that consume supplied power through at least one of air conditioning and lighting. If, midway through a specified period, the CEMS server (2) predicts that the actual power consumption at the end of the specified period will exceed the planned power consumption, it prioritizes outputting DR requests to the energy storage type DERs, compared to the consumption type DERs, to reduce the actual power consumption compared to before the prediction.

Description

TECHNICAL FIELD

[0001] The present application relates to a power management system, a server, and a power supply and demand adjustment method. BACKGROUND

[0002] In a power management system that manages power supply and demand of a power grid, it is required to make the amount of power demand based on the power grid and the amount of power supply from a power system to the power grid substantially consistent. However, in reality, the amount of power demand deviates from the prediction, and the like, and the amount of power supply and demand is not consistent, as a result of which, at times, power imbalance occurs.

[0003] In Japanese Patent Application Publication No. 2019-082935, a histogram related to such imbalance is disclosed. SUMMARY

[0004] In a microgrid that receives power supply from a power system constructed by a power company, the amount of supply power to the microgrid is planned for each prescribed period (for example, every 30 minutes) in accordance with a contract concluded in advance with the power company. In order to stabilize the power of the power system, it is required to make the planned amount of supply power (hereinafter, also referred to as "planned power") and the actual amount of supply power (hereinafter, also referred to as "actual power") substantially consistent. Control for this is also referred to as "same amount at the same time".

[0005] Generally, in a power management system, a plurality of "power adjustment resources" that can be used for adjustment of supply power from a power system to a power grid are included. As specific examples of power adjustment resources, a power generator, a power storage system, a thermal storage system, an air conditioning device, a lighting device, and the like are cited. Details will be described later, but in a case where too much importance is attached to achieving same amount at the same time and power adjustment resources are not properly controlled, it is possible that user convenience and comfort are impaired.

[0006] The present application was completed in order to solve the above-described problems, and aims to suppress reduction in user convenience and comfort as much as possible at the time of achieving same amount at the same time.

[0007] (1) The power management system of the first aspect of the present application is a power management system that manages power supply and demand of a power grid. The power management system includes: a plurality of power conditioning resources that can be used for conditioning of power supplied from a power system to the power grid; and a control device that outputs a DR request for the plurality of power conditioning resources in such a manner as to achieve, for each prescribed period, a state in which an actual power amount coincides with a planned power amount. The plurality of power conditioning resources includes: a storage-type DER (Distributed Energy Resource) that stores supplied power in the form of at least one of electricity, heat, and gas fuel; and a consumption-type DER that consumes supplied power by at least one of air conditioning and lighting. The control device, in the case where it is predicted at a midpoint of the prescribed period that the actual power amount will exceed the planned power amount at the end of the prescribed period, preferentially outputs, to the storage-type DER, a DR request for reducing the actual power amount compared to before the prediction, as compared to the consumption-type DER.

[0008] (2) The control device, in the case where it is predicted at a midpoint of the prescribed period that the actual power amount will exceed the planned power amount at the end of the prescribed period, in comparison with before the prediction, (a) in the case where the excess of the actual power amount can be eliminated by suppressing storage of supplied power based on the storage-type DER, outputs, to the storage-type DER, a DR request for suppressing storage of supplied power, and on the other hand, does not output, to the consumption-type DER, a DR request for suppressing consumption of supplied power, and (b) in the case where the excess of the actual power amount cannot be eliminated by suppressing storage of supplied power based on the storage-type DER alone, in addition to outputting, to the storage-type DER, a DR request for suppressing storage of supplied power, outputs, to the consumption-type DER, a DR request for suppressing consumption of supplied power.

[0009] In the structures of (1) and (2) described above, in the case where reduction of supplied power to the power grid is required at a midpoint of the prescribed period, power conditioning using the storage-type DER (for example, a power storage system, a charging device, a vehicle, or a heat storage system, described later) is preferentially performed as compared to power conditioning using the consumption-type DER (an air conditioning device or a lighting device). This means that, in the case where supplied power to the power grid is reduced, power conditioning based on the storage-type DER, which is less likely to affect the convenience or comfort of the user, is preferentially performed as compared to power conditioning based on the consumption-type DER, which is likely to affect the convenience or comfort of the user. For example, in the case where the cooling temperature of the air conditioning device is increased and the heating temperature is reduced, the user is likely to feel that the effect of the air conditioning is deteriorated, and the comfort of the user is likely to be reduced. Furthermore, in the case where the lighting device is dimmed, the convenience and comfort of the user are also likely to be reduced. According to the structures of (1) and (2) described above, since such a situation is less likely to occur, reduction of the convenience and comfort of the user at the time of simultaneous coincidence is able to be suppressed as much as possible.

[0010] (3) The control device, when it predicts at a middle of the prescribed period that the actual amount of electricity will be insufficient relative to the planned amount of electricity at the end of the prescribed period, preferentially outputs, to the consumption-type DER, a DR request for increasing the actual amount of electricity relative to the planned amount of electricity prior to the prediction, as compared to the storage-type DER.

[0011] (4) The control device, when it predicts at a middle of the prescribed period that the actual amount of electricity will be insufficient relative to the planned amount of electricity at the end of the prescribed period, in the comparison prior to the prediction, (c) when the insufficiency of the actual amount of electricity can be eliminated by promoting consumption of the supply of electricity based on the consumption-type DER, outputs to the consumption-type DER a DR request for promoting storage of the supply of electricity, and on the other hand, does not output to the storage-type DER a DR request for promoting storage of the supply of electricity, (d) when the insufficiency of the actual amount of electricity cannot be eliminated by promoting consumption of the supply of electricity based on the consumption-type DER alone, in addition to outputting to the consumption-type DER a DR request for promoting consumption of the supply of electricity, outputs to the storage-type DER a DR request for promoting storage of the supply of electricity.

[0012] In the structure of the above (3), (4), in the case where an increase in the supply of electricity to the power grid is required at a middle of the prescribed period, power conditioning using the consumption-type DER is preferentially performed as compared to power conditioning using the storage-type DER. This means that, in the case where an increase in the supply of electricity to the power grid is required, power conditioning based on the consumption-type DER, which can affect the convenience or comfort of the user, is preferentially performed as compared to power conditioning based on the storage-type DER, which is difficult to affect the convenience or comfort of the user. For example, even if the cooling temperature of an air conditioning device is lowered, or the heating temperature is increased, the user only feels that the effect of the air conditioning is better, and the comfort of the user is difficult to decrease, even if a lighting device is slightly brightened, the convenience of the user is difficult to decrease. Thus, according to the structure of the above (3), (4), it is possible to suppress a decrease in the convenience and comfort of the user at the time of simultaneous same amount as much as possible.

[0013] (5) The server of the second aspect of the present application manages a plurality of power conditioning resources that can be used in conditioning of the supply of electricity from the power system to the power grid. The plurality of power conditioning resources includes: a storage-type DER that stores the supply of electricity in at least one of the forms of energy of electricity, heat, and gas fuel; and a consumption-type DER that consumes the supply of electricity by at least one of air conditioning and lighting. The server has: a processor; and a memory that stores a program that can be executed by the processor. The server outputs, in the processor, a DR request for the plurality of power conditioning resources in such a manner that the actual amount of electricity coincides with the planned amount of electricity at the time of simultaneous same amount for each prescribed period. The server, in the processor, preferentially outputs, to the storage-type DER, a DR request for decreasing the actual amount of electricity relative to the planned amount of electricity prior to the prediction, as compared to the consumption-type DER, when it predicts at a middle of the prescribed period that the actual amount of electricity will exceed the planned amount of electricity at the end of the prescribed period.

[0014] (6) The processor predicts, at a middle of the prescribed period, that the actual amount of electricity exceeds the planned amount of electricity at the end of the prescribed period, and in comparison with the prediction, (a) when the excess of the actual amount of electricity can be eliminated by suppressing storage of the supply of electricity based on the electricity storage type DER, the DR request for suppressing storage of the supply of electricity is output to the electricity storage type DER, and on the other hand, the DR request for suppressing consumption of the supply of electricity is not output to the electricity consumption type DER, (b) when the excess of the actual amount of electricity cannot be eliminated by suppressing storage of the supply of electricity based on the electricity storage type DER alone, the DR request for suppressing storage of the supply of electricity is output to the electricity storage type DER, and in addition to this, the DR request for suppressing consumption of the supply of electricity is output to the electricity consumption type DER.

[0015] According to the structure of the above (5), (6), as with the structure of the above (1), (2), it is possible to suppress reduction in convenience and comfort of users at the same time as much as possible.

[0016] (7) The processor predicts, at a middle of the prescribed period, that the actual amount of electricity is deficient with respect to the planned amount of electricity at the end of the prescribed period, and preferentially outputs the DR request for increasing the actual amount of electricity compared with before the prediction to the electricity consumption type DER compared with the electricity storage type DER.

[0017] (8) The processor predicts, at a middle of the prescribed period, that the actual amount of electricity is deficient with respect to the planned amount of electricity at the end of the prescribed period, and in comparison with the prediction, (c) when the deficiency of the actual amount of electricity can be eliminated by promoting consumption of the supply of electricity based on the electricity consumption type DER, the DR request for promoting consumption of the supply of electricity is output to the electricity consumption type DER, and on the other hand, the DR request for promoting storage of the supply of electricity is not output to the electricity storage type DER, (d) when the deficiency of the actual amount of electricity cannot be eliminated by promoting consumption of the supply of electricity based on the electricity consumption type DER alone, the DR request for promoting storage of the supply of electricity is output to the electricity storage type DER, and in addition to this, the DR request for promoting consumption of the supply of electricity is output to the electricity consumption type DER.

[0018] According to the structure of the above (7), (8), as with the structure of the above (3), (4), it is possible to suppress reduction in convenience and comfort of users at the same time as much as possible.

[0019] (9) The power supply-demand adjustment method of the third aspect of the present application manages a plurality of power adjustment resources that can be used in adjustment of supply power from a power system to a power grid. The plurality of power adjustment resources are configured to accept a DR request for achieving the same amount as a planned amount of actual power per predetermined period, and have: a storage-type DER that stores supply power in at least one energy form of electricity, heat, and gas fuel; and a consumption-type DER that consumes supply power by at least one of air conditioning and lighting. The power supply-demand adjustment method includes: a first step of predicting whether the actual power exceeds the planned power at the end of the predetermined period midway through the predetermined period; and a second step of preferentially outputting, to the storage-type DER, a DR request for reducing the actual power compared to before the prediction, compared to the consumption-type DER, in a case where it is predicted that the actual power exceeds the planned power.

[0020] (10) The second step includes a third step and a fourth step of implementing the following processing in the comparison with before the prediction when it is predicted that the actual power exceeds the planned power. The third step is to output, to the storage-type DER, a DR request for suppressing storage of supply power when the excess of the actual power can be eliminated by suppressing storage of supply power based on the storage-type DER, and on the other hand, not to output, to the consumption-type DER, a DR request for suppressing consumption of supply power. The fourth step is to output, to the consumption-type DER, a DR request for suppressing consumption of supply power in addition to outputting, to the storage-type DER, a DR request for suppressing storage of supply power when the excess of the actual power cannot be eliminated by suppressing storage of supply power based on the storage-type DER alone.

[0021] According to the method of (9) and (10) described above, as with the structure of (1) and (2) described above, it is possible to suppress reduction in convenience and comfort of users as much as possible when achieving the same amount.

[0022] (11) The power supply-demand adjustment method further includes a fifth step and a sixth step. The fifth step predicts that the actual power is insufficient with respect to the planned power at the end of the predetermined period midway through the predetermined period. The sixth step preferentially outputs, to the consumption-type DER, a DR request for increasing the actual power compared to before the prediction, compared to the storage-type DER, in a case where it is predicted that the actual power is insufficient with respect to the planned power.

[0023] (12) The sixth step includes a seventh step and an eighth step of implementing the following processing in a comparison with before the prediction in a case where the actual power amount is predicted to be insufficient with respect to the planned power amount. The seventh step outputs a DR request for promoting consumption of supplied power to the consumption-type DER when the deficiency of the actual power amount can be eliminated by promoting consumption of supplied power based on the consumption-type DER, and on the other hand, does not output a DR request for promoting storage of supplied power to the storage-type DER. The eighth step outputs a DR request for promoting storage of supplied power to the storage-type DER in addition to outputting a DR request for promoting consumption of supplied power to the consumption-type DER when the deficiency of the actual power amount cannot be eliminated by promoting consumption of supplied power based on the consumption-type DER alone.

[0024] According to the methods of (11) and (12) described above, as with the structures of (3) and (4) described above, it is possible to suppress reduction in convenience and comfort of users as much as possible when the same amount at the same time is achieved.

[0025] The above and other objects, features, aspects and advantages of the present application will be more apparent from the following detailed description taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a diagram showing an outline structure of a power management system of Embodiment 1 of the present application.

[0027] Figure 2 is a timing chart for explaining an example of 30-minute simultaneous same amount in Embodiment 1.

[0028] Figure 3 is a functional block diagram of a CEMS server related to simultaneous same amount processing in Embodiment 1.

[0029] Figure 4 is a flowchart showing simultaneous same amount processing in Embodiment 1.

[0030] Figure 5 is a timing chart for explaining an example of 30-minute simultaneous same amount in Embodiment 2.

[0031] Figure 6 is a functional block diagram of a CEMS server related to simultaneous same amount processing in Embodiment 2.

[0032] Figure 7 is a flowchart showing simultaneous same amount processing in Embodiment 2. DETAILED DESCRIPTION

[0033] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In addition, the same or corresponding portions will be denoted by the same symbols, and a description thereof will not be repeated.

[0034] [Embodiment 1] Overall configuration of power management system

[0035] Figure 1 is a diagram showing an outline configuration of a power management system according to Embodiment 1 of the present application. The power management system 100 has a CEMS 1, a CEMS server 2, a receiving substation 3, a power system 4, and a transmission and distribution operator server 5. CEMS stands for Community Energy Management System or City Energy Management System.

[0036] The CEMS 1 includes a factory energy management system (FEMS) 11, a building energy management system (BEMS) 12, a home energy management system (HEMS) 13, a power generator 14, a natural fluctuation power source 15, an energy storage system (ESS) 16, an electric vehicle supply equipment (EVSE) 17, a vehicle 18, and a thermal storage system 19. In the CEMS 1, a microgrid MG is constructed from these constituent elements. Further, the microgrid MG corresponds to one example of the "power grid" of the present application.

[0037] The FEMS 11 is a system that manages the supply and demand of electric power used in a factory. The FEMS 11 includes factory buildings (including air conditioning equipment, lighting equipment, etc.), industrial equipment (production lines, etc.), and the like, which operate by electric power supplied from the microgrid MG. Although not shown, the FEMS 11 can include power generation equipment (power generators, solar panels, etc.) provided in the factory. Electric power generated by these power generation equipment is sometimes supplied to the microgrid MG. Further, the FEMS 11 can include power generation equipment (solar panels, etc.) or a cold and heat source system (waste heat recovery system, thermal storage system, etc.). The FEMS 11 also includes a FEMS server 110 capable of bidirectional communication with the CEMS server 2.

[0038] The BEMS 12 is a system that manages the supply and demand of electric power used in a building such as an office or a commercial facility. The BEMS 12 includes air conditioning equipment and lighting devices provided in the building. The BEMS 12 can also include power generation equipment and / or a cold and heat source system. The BEMS 12 also includes a BEMS server 120 capable of bidirectional communication with the CEMS server 2.

[0039] The HEMS 13 is a system that manages the supply and demand of electric power used in a household. The HEMS 13 includes household devices (air conditioning devices, lighting devices, other electric appliances, etc.) that operate by electric power supplied from the microgrid MG. In addition, the HEMS 13 can include a solar panel, a household heat pump system, a household cogeneration system, a household storage battery, etc. The HEMS 13 also includes an HEMS server 130 that is capable of bidirectional communication with the CEMS server 2.

[0040] The generator 14 is a power generation device that is independent of meteorological conditions, and outputs generated electric power to the microgrid MG. The generator 14 can include a steam turbine generator, a gas turbine generator, a diesel engine generator, a gas engine generator, a biomass generator, a stationary fuel cell, etc. The generator 14 can also include a cogeneration system that utilizes heat generated at the time of power generation.

[0041] The natural fluctuation power source 15 is a power generation device whose power generation output fluctuates according to meteorological conditions, and outputs generated electric power to the microgrid MG. In Figure 1 A solar power generation device (solar panel) is exemplified in the above, but the natural fluctuation power source 15 can also include a wind power generation device instead of or in addition to the solar power generation device.

[0042] The electric power storage system 16 is a stationary storage device that stores electric power generated by the natural fluctuation power source 15 or the like. The storage device is a secondary battery such as a lithium ion battery or a nickel hydrogen battery, and for example, a running battery (cycling member) that has been mounted on a vehicle in the past can be used. However, the electric power storage system 16 is not limited to a secondary battery, and can also be a Power to Gas device that uses surplus electric power to produce a gas fuel (hydrogen, methane, etc.).

[0043] The charging device 17 is a charger configured to charge the vehicle 18. The charging device 17 can be a household charger. The charging device 17 can also be configured to be electrically connected to the microgrid MG, and to discharge (supply electric power to) the microgrid MG.

[0044] Specifically, the vehicle 18 is a plug-in hybrid electric vehicle (PHEV), a battery electric vehicle (BEV), etc. The vehicle 18 is configured to receive electric power from the microgrid MG (external charging) by connecting a charging cable that extends from the charging device 17 to an inlet (not shown) of the vehicle 18. The vehicle 18 can also be configured to supply electric power to the microgrid MG (external power supply) by connecting the charging cable to a socket (not shown) of the vehicle 18.

[0045] The heat storage system 19 includes a heat storage tank disposed between the heat source unit and the load (air conditioning equipment, etc.), which temporarily stores the liquid medium in the heat storage tank in an insulated state. By using the heat storage system 19, the generation and consumption of heat can be staggered in time. For example, the heat generated by the heat source unit operating at night can be stored in the heat storage tank and consumed for air conditioning during the day.

[0046] In addition, Figure 1 In the example shown, CEMS1 includes one FEMS11, one BEMS12, one HEMS13, one generator 14, one natural variable power source 15, one power storage system 16, one charging device 17, one vehicle 18, and one thermal storage system 19, but the number of these systems or devices is arbitrary. CEMS1 may include multiple of these systems or devices, or it may include systems or devices not included in CEMS1. FEMS11, BEMS12, and / or HEMS13 may include equipment such as generators, or they may include charging equipment and vehicles. These systems or devices correspond to examples of the "multiple power regulation resources" of the present invention.

[0047] The power storage system 16, charging equipment 17, vehicle 18, and heat storage system 19 are equivalent to the "energy storage type DER" of this invention. DER refers to Distributed Energy Resource. The "energy storage type DER" may include power generation equipment and cold and heat source systems installed in FEMS11 or BEMS12, or it may include a household combined heat and power system and household batteries installed in HEMS13. The air conditioning and lighting equipment installed in the factory building in FEMS11, the air conditioning and lighting equipment installed in the building in BEMS12, the household heat pump system in HEMS13, and the air conditioning and lighting equipment of household appliances are equivalent to the "consumption type DER" of this invention. In addition, the generator 14 and the natural variable power source 15 can be referred to as "power generation type DER".

[0048] CEMS Server 2 is a computer used to manage power regulation resources within CEMS1. CEMS Server 2 includes a control unit 201, a storage unit 202, and a communication unit 203. The control unit 201 is configured to include a processor and perform prescribed arithmetic operations. The storage unit 202 includes a memory that stores the program executed by the control unit 201, and stores various information used in the program (mappings, formulas, parameters, etc.). Furthermore, the storage unit 202 includes a database and stores power-related data (power generation history, power consumption history, etc.) related to the systems or devices included in CEMS1. The communication unit 203 is configured to include a communication interface and communicate with external systems (other servers, etc.).

[0049] CEMS server 2 can be an aggregation server. Aggregation refers to a power operator that bundles multiple power regulation resources together to provide energy management services. CEMS server 2 is equivalent to an example of the "control device" or "server" of the present invention. Alternatively, servers (110, 120, 130) included in the systems of FEMS11, BEMS12, and HEMS13 can also be used as the "control device" or "server" of the present invention.

[0050] The receiving transformer 3 is configured to be located at the power receiving point (interlocking point) of the microgrid MG, and is capable of switching the parallel (connection) / disconnection (breakdown) of the microgrid MG and the power system 4. The receiving transformer 3 is not shown in the figures, but includes a high-voltage side (primary side) switchgear, a transformer, a protective relay, measuring equipment, and a control device. When the microgrid MG and the power system 4 are interlocked, the receiving transformer 3 receives power from the power system 4, such as AC power at extremely high voltage (voltage exceeding 7000V), and steps down the received power to supply it to the microgrid MG.

[0051] Power system 4 is a power grid constructed from power plants and transmission and distribution equipment. In this embodiment, the power company acts as both the power generation operator and the transmission and distribution operator. The power company is equivalent to a typical transmission and distribution operator and also acts as the manager of power system 4, maintaining and managing power system 4.

[0052] The power transmission and distribution operator server 5 belongs to the power company and is the computer that manages the power supply and demand of the power system 4. The power transmission and distribution operator server 5 is also configured to be able to communicate bidirectionally with the CEMS server 2.

[0053] Simultaneous and equal quantity

[0054] A contract is entered into between the administrator of CEMS1 and the power company that maintains and manages power system 4, relating to the electricity supplied from power system 4 to microgrid MG for each specified period (e.g., every 30 minutes). According to this contract, CEMS server 2 is required to adjust the actual electricity supply from power system 4 to microgrid MG in a manner that makes the actual supply electricity (actual electricity) substantially consistent with the pre-planned supply electricity (planned electricity). The control used for this adjustment is referred to as "simultaneous equalization," and specifically, in the case of a 30-minute period, it is referred to as "30-minute simultaneous equalization."

[0055] Furthermore, the duration of simultaneous and identical transactions is not limited to 30 minutes. The duration of simultaneous and identical transactions can be shorter than 30 minutes (e.g., 10 minutes) or longer than 30 minutes (e.g., 1 hour). The duration of simultaneous and identical transactions can be arbitrarily stipulated in the contract.

[0056] Figure 2This is a timing diagram used to illustrate an example of simultaneous and identical quantities over 30 minutes in Implementation Method 1. Figure 2 (and what follows) Figure 5 In the diagram, the horizontal axis represents elapsed time (in minutes). The initial time (time = 0) is the start time of the simultaneous and equal amounts of power 30 minutes from now. The vertical axis represents the power supplied from power system 4 to microgrid MG (in kW).

[0057] As an example, suppose the electricity supplied from power system 4 to microgrid MG is specified as 100 kWh over a 30-minute period. In this case, the supplied electricity is 200 kW if it remains constant. In the diagram, this supplied electricity is recorded as "planned electricity" (refer to the dashed line).

[0058] In this example, CEMS server 2 confirms the power supply from power system 4 to microgrid MG during the first 15 minutes of the simultaneous and equal-quantity period. For clarity, assume the actual power supply (actual power) is constant at 220kW (refer to the thick solid line). In this case, if this trend is left unchecked, it is predicted that the actual power supply will exceed the planned power supply at the end of the simultaneous and equal-quantity period. Therefore, the average power supply for the remaining 15 minutes is assumed to be 180kW. Consequently, CEMS server 2 outputs demand response (DR) requests to various power regulation resources in CEMS1 by reducing the power supply from 220kW to 180kW, and performs feedback control on the power regulation resources. Thus, various types of power (generated power, stored power, consumed power, etc.) within CEMS1 can be appropriately reduced, thus complying with the aforementioned contract.

[0059] The inventors have addressed the following problems that may arise when attempting to achieve simultaneous and equal power usage as described above. If CEMS server 2 only requires simultaneous and equal power usage, it can freely send DR requests to various power regulation resources. However, from the perspective of prioritizing the living environment of users within CEMS 1, the choice of which power regulation resources to use and how to implement power regulation becomes problematic. This is because, as a result of implementing power regulation based on DR requests from CEMS server 2, the operation of power regulation resources is restricted, and the resources cannot operate according to the user's intentions, potentially impairing the user's convenience or comfort.

[0060] Therefore, in this embodiment, a structure is adopted that prioritizes power regulation based on power regulation resources that are unlikely to affect the user's convenience or comfort. In cases where simultaneous and equal power regulation cannot be achieved solely through such power regulation, power regulation based on power regulation resources that may affect the user's convenience or comfort is also implemented concurrently.

[0061] More specifically, examples of consumable electrical regulation resources (DERs such as air conditioning equipment and lighting equipment) can affect user convenience or comfort. On the other hand, examples of energy storage DERs (such as energy storage system 16, charging equipment 17, vehicle 18, and thermal storage system 19) are examples of energy regulation resources that do not significantly affect user convenience or comfort. Hereinafter, air conditioning equipment will be used as a representative example of a consumable DER, and energy storage system 16 will be used as a representative example of an energy storage DER.

[0062] To reduce actual power consumption, consider that CEMS server 2 adjusts the air conditioning temperature before and after 15 minutes to reduce the power consumption of the air conditioning equipment. More specifically, CEMS server 2 can set the cooling temperature higher than the user-set temperature and the heating temperature lower than the user-set temperature. If the change in air conditioning temperature is only a few degrees (e.g., 1-3 degrees), it is assumed that the user will hardly notice the change. However, the possibility of reduced user comfort cannot be ruled out. In addition, if the user feels that the air conditioning is less effective and has to reset the air conditioning temperature, the inconvenience may also reduce user convenience.

[0063] In this embodiment, the CEMS server 2 first determines whether the power supply to the microgrid MG can be reduced to 180kW by reducing the power stored in the power storage system 16. If only the power stored in the power storage system 16 is reduced, the user's convenience and comfort will not be compromised, and the power supply to the microgrid MG can be reduced. On the other hand, if the power supply cannot be reduced to 180kW by only reducing the power stored in the power storage system 16, the CEMS server 2 adjusts the power of the air conditioning equipment within the necessary range. Even in this case, compared to not reducing the power stored in the power storage system 16, the change in air conditioning temperature can be reduced, thus minimizing the reduction in user convenience or comfort.

[0064] Figure 3 This is a functional block diagram of the CEMS server 2 related to simultaneous and equal-volume processing in Implementation Method 1. (Refer to...) Figure 2 and Figure 3 While receiving various power feedbacks from various power regulation resources within CEMS1, CEMS server 2 determines the power regulation resources used to achieve simultaneous and equal power regulation. CEMS server 2 includes an actual power calculation unit 21, a planned power calculation unit 22, an overall regulation calculation unit 23, a candidate selection unit 24, an individual regulation calculation unit 25, a resource determination unit 26, a conversion calculation unit 27, and a DR request generation unit 28.

[0065] The actual power calculation unit 21 calculates the actual power (actual power) supplied from the power system 4 to the microgrid MG from the initial moment of the 30-minute period when the objects are simultaneous and of equal quantity to the present moment (e.g., 15 minutes have passed). The actual power calculation unit 21 calculates the actual power by accumulating the supplied power detected in the receiving transformer 3 located at the receiving power point of the microgrid MG. The calculated actual power is output to the overall regulation calculation unit 23.

[0066] The planned power calculation unit 22 calculates the planned power (planned power) to be supplied from the power system 4 to the microgrid MG during the aforementioned 30-minute period. The planned power is calculated based on the contract signed between the CEMS1 manager and the power company. The value of the planned power can also be calculated in advance and stored in the storage device 202 of the CEMS server 2. The calculated planned power is output to the overall regulation calculation unit 23.

[0067] The overall regulation calculation unit 23 calculates the amount of power regulation required using the power regulation resources within CEMS1 based on the difference between the actual power consumption and the planned power consumption from the initial moment of the aforementioned 30-minute period. Figure 2 In the example shown, when the same amount of objects have been used simultaneously, there is a high probability that the actual power consumption will exceed the planned power consumption, thus requiring a reduction in the actual power consumption. This power consumption is related to CEMS1 as a whole, and therefore is also referred to below as "total adjustment amount kWh(total)". An example of the total adjustment amount kWh(total) is shown in... Figure 2 The total adjustment amount (kWh) is indicated by an additional slash. The calculated total adjustment amount (kWh) is output to the resource determination unit 26.

[0068] The candidate selection unit 24 selects candidates for power regulation resources that can be used for power regulation from various power regulation resources (power storage system 16, charging equipment 17, vehicle 18, thermal storage system 19, air conditioning equipment, lighting equipment, etc.) within CEMS1. For example, the candidate selection unit 24 obtains the operating status of each power regulation resource by communicating with each power regulation resource. Then, the candidate selection unit 24 removes power regulation resources whose power changes are prohibited (e.g., power regulation resources that require constant power operation) from the candidates and selects power regulation resources whose power changes are approved as candidates. Information related to the selected power regulation resources is output to the individual regulation calculation unit 25.

[0069] The individual regulation calculation unit 25 calculates the amount of electricity that can be regulated using each power regulation resource selected by the candidate selection unit 24. This regulated amount is calculated separately for each power regulation resource, and therefore, to distinguish it from the overall regulation amount (kWh) related to CEMS1, it is called "individual regulation amount". The individual regulation calculation unit 25 includes an electricity storage calculation unit 251, a charging calculation unit 252, a thermal storage calculation unit 253, an air conditioning calculation unit 254, and a lighting calculation unit 255.

[0070] The power storage calculation unit 251 calculates the reduction in stored power in the power storage system 16 as an "individual adjustment amount kWh1" when the stored power is reduced at the current moment. The individual adjustment amount kWh1 can be calculated based on the difference between the upper limit of the amount of electricity that can be stored in the energy storage device of the power storage system 16 (e.g., the upper limit in the specifications of the energy storage device) and the amount of electricity already stored in the energy storage device of the power storage system 16 at the current moment (the current value). Furthermore, since the energy storage device cannot store electricity too rapidly, the power storage calculation unit 251 preferably also considers the power receiving capacity of the power storage system 16 (the amount of electricity that can be received per unit time).

[0071] The charging calculation unit 252 calculates the reduction in charging power from the charging device 17 to the vehicle 18 at the current moment as "individual adjustment amount kWh2". The individual adjustment amount kWh2 can be calculated based on the spare capacity of the battery of the vehicle 18 connected to the charging device 17. Regarding the individual adjustment amount kWh2, it is preferable to consider the power delivery capacity of the charging device 17 (the power that the charging device 17 can output per unit time) and the power receiving capacity of the vehicle 18 (the power that the battery of the vehicle 18 can receive per unit time).

[0072] The thermal storage calculation unit 253 calculates the reduction in power consumption when the thermal storage to the thermal storage system 19 is reduced at the current moment as "individual adjustment amount kWh3". The individual adjustment amount kWh3 can be calculated based on the spare capacity of the thermal storage tank of the thermal storage system 19 and the electrothermal conversion capacity of the thermal storage system 19 (the amount of electricity that can convert electrical energy into heat energy per unit time).

[0073] The air conditioning calculation unit 254 calculates the reduction in power consumption based on the power consumption of the air conditioning equipment installed in CEMS1 at the current moment as "individual adjustment amount kWh4". More specifically, individual adjustment amount kWh4 refers to the amount of electricity saved during the period from now until the end of the same period (30 minutes) when the cooling temperature of the air conditioning equipment is a few degrees higher than the user-set temperature and the heating temperature of the air conditioning equipment is a few degrees lower than the user-set temperature. Individual adjustment amount kWh4 can be calculated, for example, based on specifications related to the power consumption of the air conditioning equipment, the current indoor temperature (the value detected by the temperature sensor), the outdoor temperature (e.g., an inferred value based on the weather forecast), the solar radiation (an inferred value based on the weather forecast), the building's heat transfer rate, etc.

[0074] The lighting calculation unit 255 calculates the reduction in power consumption from the current moment when the power consumption of the lighting equipment installed in CEMS1 is reduced, as "individual adjustment amount kWh5". Individual adjustment amount kWh5 refers to the amount of electricity saved when the beam of the lighting equipment is made slightly dimmer than the user-set value. Individual adjustment amount kWh5 can be calculated based on specifications related to the lamp efficiency (unit: lm / W) of the lighting equipment.

[0075] Individual adjustment quantities kWh1 to kWh3 calculated by the individual adjustment quantity calculation unit 25 are output to the resource determination unit 26. In addition, individual adjustment quantities kWh1 to kWh5 are output to the conversion calculation unit 27.

[0076] The resource determination unit 26 determines the power regulation resources used to achieve simultaneous and equal power regulation by comparing the total regulation amount (kWh) from the total regulation amount calculation unit 23 with the individual regulation amounts from the individual regulation amount calculation unit 25. More specifically, the resource determination unit 26 determines whether the total of the individual regulation amounts (kWh1 to kWh3) related to the energy storage type DER among the five individual regulation amounts (kWh1 to kWh5) is greater than or equal to the total regulation amount (kWh). In other words, the resource determination unit 26 determines whether the total regulation amount (kWh) can be compensated based on the total amount of electricity that can be regulated through the power storage system 16, charging equipment 17, vehicle 18, and thermal storage system 19 (kWh1 + kWh2 + kWh3).

[0077] As shown in Equation (1), the difference between the sum of individual regulation amounts (kWh1+kWh2+kWh3) related to the energy storage type DER and the total regulation amount kWh is recorded as ΔkWh.

[0078] ΔkWh=kWh1+kWh2+kWh3-kWh(total)···(1)

[0079] When ΔkWh ≥ 0, the resource determination unit 26 determines whether power regulation is performed using only a storage-type DER. Conversely, when ΔkWh < 0, the resource determination unit 26 determines whether power regulation is performed using a consumption-type DER in addition to a storage-type DER. The determination related to the power regulation resources used is output to the conversion calculation unit 27.

[0080] The conversion calculation unit 27 performs calculations on individual regulation amounts for each power regulation resource determined by the resource determination unit 26, and calculates the power used in the control of that power regulation resource. More specifically, for each power regulation resource, the conversion calculation unit 27 converts the individual regulation amount from energy (unit: kWh) to power (unit: kW) using the remaining time during the same period of the same object. As an example, if the individual regulation amount is 10 kWh and the remaining time is 15 minutes, it can be calculated as 10 kWh × (60 minutes / 15 minutes) = 40 kW. The result of the calculation processing by the conversion calculation unit 27 is output to the DR request generation unit 28.

[0081] The DR request generation unit 28 generates DR requests for implementing power regulation using each power regulation resource determined by the resource determination unit 26. The generated DR requests are output to the power regulation resources that are the targets.

[0082] <Control Flow>

[0083] Figure 4 This is a flowchart illustrating the simultaneous and identical processing in Implementation Method 1. This flowchart is executed when specified conditions are met (e.g., after a specified time interval). Each step is implemented through software processing based on CEMS server 2, but can also be implemented through hardware (circuit) configured within CEMS server 2. Hereinafter, each step will be abbreviated as S.

[0084] In S101, CEMS server 2 determines whether the first half (e.g., 15 minutes) of the simultaneous and equal-volume object period has elapsed. If it is currently in the first half of the simultaneous and equal-volume object period (no in S101), CEMS server 2 terminates processing. When it becomes the second half of the simultaneous and equal-volume object period (yes in S101), CEMS server 2 advances processing to S102. Furthermore, dividing the simultaneous and equal-volume object period into a first half / second half is merely an example; for example, it could also be divided into a first 10 minutes and a second 20 minutes.

[0085] In S102, CEMS server 2 determines whether the prescribed adjustment period (e.g., 1 minute) has elapsed. CEMS server 2 waits until the adjustment period has elapsed (no in S102). When the adjustment period has elapsed (yes in S102), the process proceeds to S103.

[0086] In S103, CEMS server 2 calculates the planned power supply (planned power supply) from power system 4 to microgrid MG during the first half of the simultaneous and equal-quantity object period. The planned power supply is calculated based on a pre-signed contract with the power company.

[0087] In S104, the CEMS server 2 calculates the actual amount of electricity supplied from the power system 4 to the microgrid MG during the first half of the simultaneous and equal-quantity object period (actual electricity). As described above, the actual electricity can be calculated by accumulating the supplied electricity detected in the receiving transformer 3 at the receiving power point of the microgrid MG.

[0088] In S105, CEMS server 2 calculates the overall adjustment amount (kWh(total)) by comparing the planned electricity consumption calculated in S103 with the actual electricity consumption calculated in S104. In Implementation 1, since the actual electricity consumption is greater than the planned electricity consumption, (actual electricity consumption - planned electricity consumption) can be set as the overall adjustment amount (kWh(total)).

[0089] In S106, CEMS server 2 acquires data related to the current usage status (including generation, storage, consumption, and supply) of each power regulation resource within CEMS1. This data includes data related to the current power usage of each power regulation resource and data related to the feasibility of changes in power usage (approval / prohibition of changes). Based on the acquired data, CEMS server 2 determines candidate power regulation resources that can be used to compensate for the total regulation amount (kWh).

[0090] In S107, CEMS server 2 calculates the individual adjustment amounts (kW1 to kW5) for each candidate determined in S106. Regarding this calculation method... Figure 3 The details have been explained in detail in the document, and will not be repeated here.

[0091] In S108, CEMS server 2 determines whether the overall regulation amount (kWh) can be compensated by reducing the degree of power regulation based on power storage, charging, and heat storage resources. Specifically, CEMS server 2 determines whether the sum of the individual regulation amounts (kWh1 + kWh2 + kWh3) based on the energy storage type DER (energy storage system 16, charging equipment 17, vehicle 18, and heat storage system 19) is greater than or equal to the overall regulation amount (kWh(total)) (ΔkWh≥0).

[0092] When ΔkWh ≥ 0 (yes in S108), CEMS server 2 generates a DR request (S109) by using power regulation of a storage-type DER to achieve simultaneous and equal power levels. Conversely, when ΔkWh < 0 (no in S108), CEMS server 2 generates a DR request (S110) by using power regulation of a consumption-type DER in addition to a storage-type DER to achieve simultaneous and equal power levels. After processing in S109 or S110, CEMS server 2 proceeds to S111.

[0093] In S111, CEMS server 2 determines whether the entire 30-minute period for simultaneous and equal-quantity objects has elapsed. If the simultaneous and equal-quantity object period has not elapsed (no in S111), CEMS server 2 returns to S102. The same process is then performed in the next adjustment period. When the simultaneous and equal-quantity object period has elapsed (yes in S111), CEMS server 2 terminates the series of processes.

[0094] As described above, in Embodiment 1, when it is necessary to reduce the power supply to the microgrid MG midway through a period of simultaneous and equal-quantity operation in order to achieve simultaneous and equal-quantity operation, the CEMS server 2 prioritizes power regulation using energy storage-type DERs (electricity storage system 16, charging equipment 17, vehicle 18, and thermal storage system 19) over power regulation using consumption-type DERs (air conditioning equipment and lighting equipment). That is, in cases where power regulation is needed to reduce power consumption in the user's living environment, power regulation based on energy storage-type DERs that are less likely to affect the user's convenience or comfort is prioritized over power regulation based on consumption-type DERs that can affect the user's convenience or comfort. Therefore, according to Embodiment 1, the reduction in user convenience and comfort during simultaneous and equal-quantity operation can be suppressed as much as possible.

[0095] Furthermore, in Embodiment 1, an energy storage system 16, a charging device 17, a vehicle 18, and a thermal storage system 19 were described as an energy-storage type DER that is unlikely to affect the user's convenience or comfort. However, it is not necessary to use all of these energy regulation resources; at least one of them may be used. The same applies to Embodiment 2, which will be described later.

[0096] Furthermore, while air conditioning and lighting equipment are described as consumable power supplies that can affect user convenience or comfort, either one can be used alone. Users are less likely to notice the power regulation when using air conditioning compared to lighting. Moreover, in most cases, since air conditioning consumes more power than lighting, its power regulation is more effective. Therefore, when only one is used, it is preferable to prioritize power regulation when using air conditioning.

[0097] [Embodiment 2] In Embodiment 1, the case where it is required to reduce the power supply to the microgrid MG midway through a period of simultaneous and equal-quantity objects was described. In Embodiment 2, the case where it is required to increase the power supply to the microgrid MG midway through a period of simultaneous and equal-quantity objects was described. The structure of the power management system in the second embodiment is the same as the structure of the power management system 100 in the first embodiment (see...). Figure 1 )same.

[0098] Figure 5 This is a timing diagram used to illustrate an example of simultaneous and identical quantities over 30 minutes in Implementation Method 2. Figure 5 Nakaya and Figure 2 Similarly, assume that the planned electricity supply from power system 4 to microgrid MG during a simultaneous, equal-volume period of 30 minutes is contractually stipulated as 100 kWh. When the electricity supply is constant, the planned electricity is 200 kW.

[0099] After the first 15 minutes, CEMS server 2 confirms the power supply from power system 4 to microgrid MG. In implementation method 2, since the actual power supply is a constant 180kW, it is assumed that the average power supply in the second 15 minutes is 220kW. Therefore, a DR request is made to the power regulation resources in CEMS1 to increase the power supply from 180kW to 220kW.

[0100] Figure 6 This is a functional block diagram of the CEMS server 2A related to simultaneous and identical processing in Embodiment 2. The CEMS server 2A in Embodiment 2 is similar to the CEMS server 2 in Embodiment 1 (see [reference]). Figure 3 The difference is that it includes a resource determination unit 26A instead of a resource determination unit 26.

[0101] Similar to Resource Determination Unit 26, Resource Determination Unit 26A determines the power regulation resources used to achieve simultaneous and equal power consumption by comparing the total regulation amount (kWh) from the total regulation amount calculation unit 23 with the individual regulation amounts from the individual regulation amount calculation unit 25. However, in Embodiment 2, Resource Determination Unit 26A determines whether the total of the individual regulation amounts (kWh4 and kWh5) related to the consumption-type DER among the five individual regulation amounts (kWh1 to kWh5) is greater than or equal to the total regulation amount (kWh). In other words, Resource Determination Unit 26A determines whether it can compensate for the total regulation amount (kWh) by using the total amount of electricity that can be regulated by air conditioning equipment and lighting equipment (kWh4 + kWh5).

[0102] In Implementation 2, the difference between the sum of individual adjustment amounts (kWh4+kWh5) related to the consumption type DER and the total adjustment amount kWh is recorded as ΔkWh (refer to Equation (2) below).

[0103] ΔkWh=kWh4+kWh5-kWh(total)···(2)

[0104] When ΔkWh ≥ 0, the resource determination unit 26A determines whether power regulation is performed using only a consumable DER. Conversely, when ΔkWh < 0, the resource determination unit 26A determines whether power regulation is performed using a storage DER (electricity storage system 16, charging equipment 17, vehicle 18, and thermal storage system 19, etc.) in addition to a consumable DER. Other functional blocks and Figure 3 The corresponding function blocks shown are the same, so detailed explanations will not be repeated.

[0105] Figure 7 This is a flowchart illustrating the simultaneous and identical processing in Implementation Method 2. The processing steps S201 to S207 are the same as those in Implementation Method 1 (see...). Figure 4 The principle is the same. However, in implementation 2, during the first half of the period when the same amount of objects are present, the actual amount of electricity is less than the planned amount of electricity, so (planned amount of electricity - actual amount of electricity) can be set as the total adjustment amount kWh.

[0106] In S208, CEMS server 2 determines whether the overall regulation amount (kWh) can be compensated by increasing the level of power regulation for air conditioning and lighting based on power regulation resources. Specifically, CEMS server 2 determines whether the total of individual regulation amounts (kWh4 + kWh5) based on consumption-type DERs is greater than or equal to the overall regulation amount (kWh(total)) (ΔkWh≥0).

[0107] When ΔkWh ≥ 0 (Yes in S208), CEMS server 2 generates a DR request (S209) in a manner that achieves simultaneous and equal quantity through power regulation using a consumption-type DER. Specifically, during the period until the simultaneous and equal quantity object period ends, CEMS server 2 lowers the cooling temperature of the air conditioning unit by a few degrees and raises the heating temperature of the air conditioning unit by a few degrees compared to the user-set temperature. In addition, CEMS server 2 makes the beam of the lighting equipment slightly brighter than the user-set value.

[0108] In contrast, when ΔkWh < 0 (not in S208), CEMS server 2 generates a DR request (S210) in a manner that achieves simultaneous and equal power regulation by using a storage-type DER in addition to the consumable DER. The processing of S211, which is executed after the processing of S209 or S210, is the same as the processing of S111 in embodiment 1.

[0109] As described above, in Embodiment 2, when it is necessary to increase the power supply to the microgrid MG midway through a period of simultaneous and equal-quantity operations in order to achieve simultaneous and equal-quantity operations, the CEMS server 2 prioritizes power regulation using consumable DERs (such as air conditioning equipment and lighting equipment) over power regulation using energy storage DERs (such as energy storage system 16, charging equipment 17, vehicle 18, and thermal storage system 19). That is, regarding power regulation that increases power consumption in the user's living environment, power regulation based on consumable DERs that affect user convenience or comfort is prioritized over power regulation based on energy storage DERs that are less likely to affect user convenience or comfort. Even if the cooling temperature of the air conditioning equipment is lowered and the heating temperature is raised, the user only feels that the time required for air conditioning is shortened and the air conditioning effect is improved, and the user's comfort is unlikely to decrease. Furthermore, even if the lighting equipment is slightly brighter, the user's convenience is unlikely to decrease. Therefore, according to Embodiment 2, the decrease in user convenience and comfort when achieving simultaneous and equal-quantity operations can be suppressed as much as possible.

[0110] While embodiments of the invention have been described, they should be considered illustrative rather than limiting in all respects. The scope of the invention is defined by the claims, including all modifications within the meaning and scope equivalent to those claims.

Claims

1. A power management system that manages power supply and demand of a power grid, comprising: a plurality of power conditioning resources that can be used for conditioning of supplied power from a power system to the power grid; a control device that outputs demand response requests for the plurality of power conditioning resources in a manner that achieves, for each prescribed period, a same amount of actual power and planned power, the plurality of power conditioning resources including: a storage-type DER (Distributed Energy Resource) that stores the supplied power in at least one energy form of electricity, heat, and gas fuel; a consumption-type DER that consumes the supplied power through at least one of air conditioning and lighting, the control device, in a case where it is predicted at a middle of the prescribed period that the actual power exceeds the planned power at an end of the prescribed period, preferentially outputs, to the storage-type DER, compared to the consumption-type DER, the demand response request for reducing the actual power compared to before the prediction, the control device, in a case where it is predicted at the middle of the prescribed period that the actual power is insufficient relative to the planned power at the end of the prescribed period, preferentially outputs, to the consumption-type DER, compared to the storage-type DER, the demand response request for increasing the actual power compared to before the prediction.

2. The power management system according to claim 1, wherein, in a case where it is predicted at the middle of the prescribed period that the actual power exceeds the planned power at the end of the prescribed period, in comparison to before the prediction, in a case where the excess of the actual power can be eliminated by suppressing storage of the supplied power based on the storage-type DER, the demand response request for suppressing the storage of the supplied power is output to the storage-type DER, and on the other hand, the demand response request for suppressing consumption of the supplied power is not output to the consumption-type DER, in a case where the excess of the actual power cannot be eliminated by suppressing only the storage of the supplied power based on the storage-type DER, the demand response request for suppressing the consumption of the supplied power is output to the consumption-type DER in addition to the demand response request for suppressing the storage of the supplied power being output to the storage-type DER.

3. The power management system according to claim 1, wherein, in a case where it is predicted at the middle of the prescribed period that the actual power is insufficient relative to the planned power at the end of the prescribed period, in comparison to before the prediction, in a case where the insufficiency of the actual power can be eliminated by promoting consumption of the supplied power based on the consumption-type DER, the demand response request for promoting the consumption of the supplied power is output to the consumption-type DER, and on the other hand, the demand response request for promoting storage of the supplied power is not output to the storage-type DER. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ when the excess of the actual electric quantity cannot be eliminated only by promoting the consumption of the supply electric power based on the consumption-type DER, the demand response request for promoting the storage of the supply electric power is output to the storage-type DER in addition to the demand response request for promoting the consumption of the supply electric power being output to the consumption-type DER.

4. A server that manages a plurality of electric power adjustment resources that can be used in adjustment of supply electric power from an electric power system to an electric grid, the plurality of electric power adjustment resources including: a storage-type DER that stores the supply electric power in at least one energy form of electricity, heat, and gas fuel; a consumption-type DER that consumes the supply electric power by at least one of air conditioning and lighting, the server having: a processor; a memory that stores a program executable by the processor, in the processor, outputting a demand response request for the plurality of electric power adjustment resources in a manner to achieve the same quantity while the actual electric quantity and the planned electric quantity are made consistent per a prescribed period, when it is predicted in the middle of the prescribed period that the actual electric quantity exceeds the planned electric quantity at the end of the prescribed period, preferentially outputting the demand response request for reducing the actual electric quantity compared to before the prediction to the storage-type DER compared to the consumption-type DER, when it is predicted in the middle of the prescribed period that the actual electric quantity is deficient with respect to the planned electric quantity at the end of the prescribed period, preferentially outputting the demand response request for increasing the actual electric quantity compared to before the prediction to the consumption-type DER compared to the storage-type DER.

5. The server according to claim 4, wherein the processor, in the middle of the prescribed period, when it is predicted that the actual electric quantity exceeds the planned electric quantity at the end of the prescribed period, when the excess of the actual electric quantity can be eliminated by suppressing the storage of the supply electric power based on the storage-type DER, outputs the demand response request for suppressing the storage of the supply electric power to the storage-type DER, and on the other hand, does not output the demand response request for suppressing the consumption of the supply electric power to the consumption-type DER, when the excess of the actual electric quantity cannot be eliminated only by suppressing the storage of the supply electric power based on the storage-type DER, outputs the demand response request for suppressing the consumption of the supply electric power to the consumption-type DER in addition to the demand response request for suppressing the storage of the supply electric power being output to the storage-type DER.

6. The server according to claim 4, wherein the processor, in the middle of the prescribed period, when it is predicted that the actual electric quantity is deficient with respect to the planned electric quantity at the end of the prescribed period, when it is predicted in the middle of the prescribed period that the actual electric quantity exceeds the planned electric quantity at the end of the prescribed period, preferentially outputting the demand response request for reducing the actual electric quantity compared to before the prediction to the storage-type DER compared to the consumption-type DER, when it is predicted in the middle of the prescribed period that the actual electric quantity is deficient with respect to the planned electric quantity at the end of the prescribed period, preferentially outputting the demand response request for increasing the actual electric quantity compared to before the prediction to the consumption-type DER compared to the storage-type DER. when the deficiency of the actual power amount can be eliminated by promoting the consumption of the supply power based on the consumption-type DER, outputting the demand response request for promoting the consumption of the supply power to the consumption-type DER, on the other hand, not outputting the demand response request for promoting the storage of the supply power to the storage-type DER, when the deficiency of the actual power amount cannot be eliminated by promoting the consumption of the supply power based on the consumption-type DER alone, outputting the demand response request for promoting the storage of the supply power to the storage-type DER in addition to outputting the demand response request for promoting the consumption of the supply power to the consumption-type DER.

7. A power supply and demand adjustment method of managing a plurality of power adjustment resources that can be used in adjustment of supply power from a power system to a power grid, the plurality of power adjustment resources are configured so as to accept a demand response request for achieving the same amount of actual power amount and planned power amount per predetermined period, have: a storage-type DER that stores the supply power in at least one energy form of electricity, heat, and gas fuel; a consumption-type DER that consumes the supply power by at least one of air conditioning and lighting, the power supply and demand adjustment method includes: a step of predicting whether the actual power amount exceeds the planned power amount at the end of the predetermined period midway through the predetermined period; a step of preferentially outputting the demand response request for reducing the actual power amount compared to before the prediction to the storage-type DER compared to the consumption-type DER in a case where it is predicted that the actual power amount exceeds the planned power amount; a step of predicting whether the actual power amount is deficient with respect to the planned power amount at the end of the predetermined period midway through the predetermined period; a step of preferentially outputting the demand response request for increasing the actual power amount compared to before the prediction to the consumption-type DER compared to the storage-type DER in a case where it is predicted that the actual power amount is deficient with respect to the planned power amount.

8. The power supply and demand adjustment method according to claim 7, wherein the outputting step includes, in a case where it is predicted that the actual power amount exceeds the planned power amount, in the comparison with before the prediction, a step of outputting the demand response request for suppressing the storage of the supply power to the storage-type DER when the excess of the actual power amount can be eliminated by suppressing the storage of the supply power based on the storage-type DER, on the other hand, not outputting the demand response request for suppressing the consumption of the supply power to the consumption-type DER; a step of outputting the demand response request for suppressing the consumption of the supply power to the consumption-type DER in addition to outputting the demand response request for suppressing the storage of the supply power to the storage-type DER when the excess of the actual power amount cannot be eliminated by suppressing the storage of the supply power based on the storage-type DER alone.

9. The power supply-demand adjusting method according to claim 7, wherein the outputting step has, in a comparison before the prediction, when the actual power amount is predicted to be insufficient with respect to the scheduled power amount at the end of the prescribed period midway through the prescribed period, when the insufficiency of the actual power amount can be eliminated by promoting consumption of the supply power based on the consumption-type DER, the step of outputting, to the consumption-type DER, the demand response request for promoting consumption of the supply power, and on the other hand, not outputting, to the storage-type DER, the demand response request for promoting storage of the supply power; when the insufficiency of the actual power amount cannot be eliminated by promoting consumption of the supply power based on the consumption-type DER alone, the step of outputting, to the storage-type DER, the demand response request for promoting storage of the supply power in addition to outputting, to the consumption-type DER, the demand response request for promoting consumption of the supply power.

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