Power operation management system and power operation management method
The power operation management system addresses the challenge of integrating diverse power services by using a hierarchical allocation plan generation structure and re-planning mechanism, ensuring efficient and adaptable power management across various equipment groups.
Patent Information
- Application Number
- JP2024036298
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-09-19
AI Technical Summary
Existing power operation management systems fail to accommodate the diverse and flexible requirements of renewable energy and demand response using storage batteries, lacking the ability to efficiently integrate multiple types of power services.
A power operation management system that includes a service-specific resource allocation unit, integrated plan generation unit, and a hierarchical allocation plan generation structure, allowing for the allocation of electrical capacity to multiple types of power services and generating integrated and allocation plans across equipment groups in a hierarchical manner, with re-planning capabilities to adjust to actual operation results.
Enables flexible accommodation of multiple power services, minimizing control instruction conflicts and enabling quick re-planning to maintain operational efficiency, thus enhancing the flexibility and adaptability of power management systems.
Smart Images

Figure 2025137223000001_ABST
Abstract
Description
[Technical Field]
[0001] The present disclosure relates to a power operation management system and the like. [Background technology]
[0002] Regarding a system that operates power facilities based on a predetermined operation plan, for example, the technology described in Patent Document 1 is known. That is, Patent Document 1 describes that "the EMS of the power receiving facility predicts the power transition for each of its own production lines on the scheduled date, and classifies the operation schedules of its own production lines on the scheduled date into confirmed schedules, unconfirmed schedules, and adjustable schedules." [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 6893980 Summary of the Invention [Problem to be solved by the invention]
[0004] In recent years, power services have become more diverse, such as the expanded use of renewable energy and demand response using storage batteries. Therefore, there is a demand for operations that can flexibly accommodate multiple types of power services, but the technology described in Patent Document 1 does not take these points into consideration, and there is room for improvement.
[0005] Therefore, an object of the present disclosure is to provide a power operation management system and the like that can flexibly accommodate multiple types of power services. [Means for solving the problem]
[0006] In order to solve the above-mentioned problems, the power operations management system according to the present disclosure includes a service-specific resource allocation unit that allocates the electrical capacity of multiple pieces of equipment in a power system to multiple types of power services and generates service-specific plans; an integrated plan generation unit that integrates the service-specific plans and generates an integrated plan; a plurality of allocation plan generation units that are associated one-to-one with a plurality of equipment groups in a hierarchical inclusion relationship, with a predetermined grouping of the multiple pieces of equipment at the bottom tier, and generate predetermined allocation plans; and a plan execution unit that outputs control commands to the predetermined pieces of equipment based on the allocation plan of the equipment group at the bottom tier, wherein one of the multiple allocation plan generation units that corresponds to an equipment group at the top tier generates or updates allocation plans for the multiple equipment groups positioned immediately below the equipment group based on the integrated plan, and one of the multiple allocation plan generation units that corresponds to an equipment group at a tier lower than the top tier generates or updates allocation plans for the multiple equipment groups positioned immediately below the equipment group based on an allocation plan allocated from the equipment group immediately above the equipment group. [Effects of the Invention]
[0007] According to the present disclosure, it is possible to provide a power operation management system and the like that can flexibly accommodate a plurality of types of power services. [Brief explanation of the drawings]
[0008] [Figure 1] 1 is a configuration diagram of a power operation management system according to an embodiment; [Figure 2] FIG. 2 is an explanatory diagram of facility groups and allocation plans of the power operations management system according to the embodiment. [Figure 3] FIG. 2 is an explanatory diagram showing the hierarchical relationship of facility groups in the power operation management system according to the embodiment. [Figure 4] FIG. 2 is an explanatory diagram relating to replanning of an allocation plan or the like in the power operations management system according to the embodiment. [Figure 5] 1 is a functional block diagram including an integrated planning device and a first storage unit of a power operations management system according to an embodiment. [Figure 6]FIG. 2 is an explanatory diagram relating to facility group capability information of the power operations management system according to the embodiment. [Figure 7] FIG. 2 is an explanatory diagram relating to facility group capacity allocation information of the power operation management system according to the embodiment. [Figure 8] FIG. 2 is an explanatory diagram relating to service requirement information of the power operation management system according to the embodiment. [Figure 9] FIG. 2 is an explanatory diagram relating to service plan history information of the power operations management system according to the embodiment. [Figure 10] FIG. 2 is an explanatory diagram relating to plan evaluation history information of the power operations management system according to the embodiment. [Figure 11] FIG. 2 is an explanatory diagram relating to plan history information of the power operations management system according to the embodiment. [Figure 12] 2 is a functional block diagram including an allocation planning device and a second storage unit of the power operations management system according to the embodiment. FIG. [Figure 13] FIG. 2 is an explanatory diagram relating to plan setting information of the power operations management system according to the embodiment. [Figure 14] FIG. 2 is an explanatory diagram relating to operation performance information of the power operation management system according to the embodiment. [Figure 15] FIG. 4 is a sequence diagram relating to generation of an integrated plan and an allocation plan in the power operations management system according to the embodiment. [Figure 16] FIG. 10 is a sequence diagram relating to updating of an allocation plan of the power operations management system according to the embodiment. [Figure 17] 4 is a flowchart illustrating processing by an integrated planning device included in the power operations management system according to the embodiment. [Figure 18] 10 is a flowchart showing the processing of an allocation planning device provided in the power operations management system according to the embodiment. [Figure 19] 4 is a flowchart showing processing by an equipment control device provided in the power operation management system according to the embodiment. [Figure 20] 10 is a display example of a comparison screen of service evaluation values based on resource allocation ratios in the power operation management system according to the embodiment. [Figure 21]10 is a display example of the fulfillment status of the integrated plan in the power operations management system according to the embodiment. [Figure 22] 10 is a display example of the fulfillment status of the allocation plan in the power operations management system according to the embodiment. [Figure 23] 10 is a display example of the fulfillment status of all hierarchical levels in the power operation management system according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0009] <Embodiment> <Configuration of the power management system> FIG. 1 is a configuration diagram of a power operation management system 100 according to an embodiment. The power operation management system 100 is a system for operating a plurality of power-related facilities, such as facilities A and B, based on a plurality of types of power services. Note that in Fig. 1 and other figures, the power services are simply referred to as "services."
[0010] The "electricity service" mentioned above refers to a predetermined service related to electricity. Specific examples of such electricity services include the supply of renewable energy through self-consignment of electricity, services that generate revenue through participation in demand response, and electric vehicle charging services. Note that electricity services are not limited to the examples mentioned above. While the example in FIG. 1 shows three types of electricity services α, β, and γ, the number of types of electricity services may be two or less, or may be four or more.
[0011] In FIG. 1, facilities A to H (see FIG. 2), which will be described later, are appropriately extracted and illustrated as facilities A and B. These facilities A to H (see FIG. 2) may be any of power generation facilities, demand facilities, and electricity storage facilities (including electric vehicles and charging stations). For example, facilities A to H (see FIG. 2) may be a mixture of power generation facilities, demand facilities, and electricity storage facilities. Furthermore, all of facilities A to H may be power generation facilities (or all may be demand facilities or electricity storage facilities). These facilities A to H are included in a predetermined power grid (not shown).
[0012] As shown in Figure 1, the power operation management system 100 is configured to include an integrated planning device 10, a plurality of allocation planning devices 20,...,2N, equipment control devices 31, 32,..., a first memory unit 40, a second memory unit 50, and a display device 60.
[0013] The integrated planning device 10 generates an integrated plan by integrating the service-specific plans of multiple types of power services α, β, and γ into one. Such an integrated planning device 10 may be a single computer (such as a server) or may be configured from multiple computers connected via a network.
[0014] Although not shown, the computer described above loads a program from an auxiliary storage device to a main storage device, and the processor executes predetermined processing. Examples of such processors include a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and an ASIC (Application Specific Integrated Circuit). The allocation planning devices 20,...,2N and facility control devices 31, 32,..., which will be described next, also use computers.
[0015] The allocation planning device 20 for facility group 0 generates allocation plans for facility groups (equipment groups 1-1 and 1-2 in FIG. 2) one level below facility group 0, based on the integrated plan generated by the integrated planning device 10. Here, the "allocation plan" is an operation plan (control instructions) for power allocated to a specific facility group. Details of facility groups will be described later. As shown in FIG. 1, the integrated planning device 10 and the allocation planning device 20 configure a cloud-side EMS (Energy Management System).
[0016] The allocation planning device 2N of the equipment group N generates an allocation plan for the equipment A and B based on the allocation plan of the equipment group at the next higher hierarchical level. As shown in Fig. 1, the allocation planning device 2N and the like constitute an edge-side EMS.
[0017] An equipment control device 31 controls equipment A based on an allocation plan for equipment A generated by an allocation planning device 2N. Another equipment control device 32 controls equipment B based on an allocation plan for equipment B generated by an allocation planning device 2N.
[0018] The first storage unit 40 stores various data used by the integrated planning device 10 and the allocation planning device 20 as "cloud-side EMSs." The second storage unit 50 stores various data used by the allocation planning device 2N and the like as "edge-side EMSs." The first storage unit 40 and the second storage unit 50 are configured to include, as their hardware configurations, non-volatile memories such as ROM (Read Only Memory) and HDDs, and volatile memories such as RAM (Random Access Memory) and registers. The data stored in the first storage unit 40 and the second storage unit 50 will be described later.
[0019] The display device 60 displays the processing results of the integrated planning device 10 and the allocation planning device 20 in a predetermined manner. For example, a display is used as such a display device 60. Note that the display of a mobile terminal (not shown) such as a smartphone or tablet may also function as the display device 60. Next, facility groups and allocation plans will be described with reference to FIGS. 2 and 3.
[0020] FIG. 2 is an explanatory diagram regarding facility groups and allocation plans. In the example of FIG. 2, a total of eight pieces of equipment A to H are shown as power-related equipment. As described above, these pieces of equipment A to H may be any of power generation equipment, demand equipment, and power storage equipment. Allocation planning devices 22-1, 22-2, 22-3, and 22-4 shown in FIG. 2 correspond to the allocation planning device 2N in FIG. 1. Furthermore, although not shown in FIG. 1, the allocation planning device 21-1 shown in FIG. 2 is associated with the equipment group 1-1 in the middle tier. Similarly, the allocation planning device 21-2 is associated with the equipment group 1-2 in the middle tier.
[0021] As described above, the integrated planning device 10 generates an integrated plan by integrating the service-specific plans for multiple types of power services α, β, and γ into one. The top-level equipment group 0 shown in FIG. 2 is a virtual equipment to which the integrated planning device 10 assigns the integrated plan. This equipment group 0 is treated as an equipment having a capacity that is the sum of the power supply capacity, power demand capacity, and charging / discharging capacity of the equipment groups 1-1 and 1-2 at the next lower level. In other words, the integrated planning device 10 divides the integrated plan into predetermined parts and assigns allocation plans directly to the equipment A to H, but instead assigns the integrated plan to a single virtual equipment group 0. Hereinafter, power supply capacity, power demand capacity, charging / discharging capacity, etc. will be referred to as "electrical capacity."
[0022] The allocation planning device 20 associated with equipment group 0 generates allocation plans for each of the equipment groups 1-1 and 1-2 so that the integrated plan generated by the integrated planning device 10 is distributed to the equipment groups 1-1 and 1-2 according to their electrical capabilities. These equipment groups 1-1 and 1-2 are virtual equipment included in equipment group 0. The equipment groups 1-1 and 1-2 are positioned one hierarchical level below the top-level equipment group 0.
[0023] The allocation planning device 21-1 associated with the equipment group 1-1 generates allocation plans for the equipment groups 2-1 and 2-2 so that the allocation plan generated by the higher-level allocation planning device 20 is divided among the equipment groups 2-1 and 2-2 according to their electrical capabilities. These equipment groups 2-1 and 2-2 are virtual equipment included in the equipment group 1-1. The equipment groups 2-1 and 2-2 are positioned one level below the equipment group 1-1. The equipment group 2-1 includes equipment A and B. The equipment group 2-2 includes equipment C and D.
[0024] The allocation planning device 22-1 associated with the equipment group 2-1 generates allocation plans for each of the equipment A and B so that the equipment A and B share the allocation plan generated by the higher-level allocation planning device 21-1 according to their electrical capabilities. Similarly, the allocation planning device 22-2 associated with the equipment group 2-2 generates allocation plans for each of the equipment C and D.
[0025] In this way, allocation plans are assigned sequentially from the top-level equipment group 0 to the equipment groups in the lower hierarchical levels. This determines a single control instruction for each equipment group at each time, preventing multiple control instructions corresponding to power services α, β, and γ from being input to one piece of equipment at the same time (control instruction conflicts).
[0026] As shown in Fig. 2, multiple equipment groups are formed in a hierarchical inclusion relationship with a predetermined grouping of multiple pieces of equipment A to H at the lowest level. Here, "hierarchical inclusion relationship" means a structure in which a higher-level equipment group contains multiple equipment groups that belong to a relatively lower level, and for any given equipment group, there is one higher-level equipment group that contains that equipment group at each level.
[0027] Such a hierarchical structure of facility groups is set in advance by a user's operation via an input device (not shown) (or by AI). Note that the geographical distance between facilities (e.g., facilities A and B) included in a common facility group (e.g., facility group 2-1) may be shorter than the distance between facilities included in other facility groups (e.g., the distance between facilities A and H). This makes it possible to prevent differences in communication delay time (latency) from occurring among multiple facilities included in a common facility group.
[0028] Furthermore, the equipment group 2-1 may be configured so that, for example, when the actual value of equipment A exceeds the predicted value, the actual value of equipment B included in the common equipment group 2-1 falls below the predicted value. To give a specific example, equipment A may be a solar power generation equipment and equipment B may be a wind power generation equipment. As a result, for example, if the weather worsens and wind and rain occur on a date and time that was predicted to be "clear" in the weather forecast, the amount of power generated by equipment A that generates solar power will fall below the predicted value, while the amount of power generated by equipment B that generates wind power will likely exceed the predicted value. Therefore, even if a difference occurs between the actual value and the predicted value of the amount of power generated, the difference can be maintained relatively small for the equipment group 2-1 as a whole, including equipment A and B.
[0029] FIG. 3 is an explanatory diagram showing the hierarchical relationship of facility groups. As mentioned above, multiple facility groups have a hierarchical inclusion relationship. This inclusion relationship is represented by a tree structure with each facility group as a node, as shown in Figure 3. Specifically, facility group 0, to which the integrated plan is assigned, is positioned at the top level, and facility groups 2-1, 2-2, 2-3, and 2-4, which include facilities A to H (see Figure 2), are positioned at the bottom level.
[0030] In such a tree structure, when a specific node is connected to another node via a branch, the terms "directly above" and "directly below" are used to indicate the relationship between the nodes. For example, facility group 0 is positioned "directly above" facility group 1-1. Furthermore, facility groups 2-1 and 2-2 are positioned "directly below" facility group 1-1.
[0031] Returning to Figure 1 again, the explanation will continue. 1, the integrated planning device 10 includes a service-specific resource allocation unit 11 and an integrated plan generation unit 12. The service-specific resource allocation unit 11 generates a service-specific plan by allocating the power supply capacity, power demand capacity, and charge / discharge capacity (i.e., electrical capacity) of facilities A to H (see FIG. 2) to a plurality of power services α, β, and γ.
[0032] The integrated plan generation unit 12 generates an integrated plan by integrating multiple service-specific plans generated by the service-specific resource allocation unit 11 into one. For example, the integrated plan generation unit 12 generates an integrated plan by calculating the sum of the electrical capacity for each time period in the service-specific plans for power services α, β, and γ. This integrated plan is used as a control instruction for the top-level equipment group 0.
[0033] The allocation planning device 20 for facility group 0 includes an allocation plan generation unit 20a, a re-planning determination unit 20b, and an facility group monitoring unit 20c. The allocation plan generation unit 20a generates (or updates) allocation plans for multiple facility groups 1-1 and 1-2 (see FIG. 2) positioned directly below facility group 0 based on an integrated plan. This allocation plan generation unit 20a is associated with facility group 0, which is the topmost tier among the multiple allocation plan generation units 20a,...,2Na in each tier.
[0034] When the difference between the integrated plan and the actual operation results for equipment group 0 is equal to or greater than a predetermined threshold, the re-planning determination unit 20b transmits a re-planning instruction for the integrated plan to the integrated plan generation unit 12 via the allocation plan generation unit 20a. Also, when equipment group 0 cannot implement the integrated plan with its most recent available capacity, the re-planning determination unit 20b transmits a re-planning instruction for the integrated plan to the integrated plan generation unit 12 via the allocation plan generation unit 20a. Note that the re-planning determination unit 20b is associated with equipment group 0 in the top tier among the multiple re-planning determination units 20b,...,2Nb in each tier.
[0035] The equipment group monitoring unit 20c acquires the latest available capacities and operation records of the equipment groups 1-1 and 1-2 (see FIG. 2) at the next lower level from the allocation planning devices 21-1 and 21-2 (see FIG. 2). The data acquired in this manner is used for processing by the re-planning determination unit 20b and is also sent to the integrated planning device 10.
[0036] Furthermore, the allocation planning device 2N associated with the lowest-level equipment group N (one of the equipment groups 2-1 to 2-4 in FIG. 2) includes an allocation plan generation unit 2Na, a re-planning determination unit 2Nb, and an equipment group monitoring unit 2Nc. The allocation plan generation unit 2Na generates allocation plans for equipment A, B, etc. based on the allocation plan generated by the allocation planning device in the next higher level (for example, the allocation planning device 21-1 in FIG. 2).
[0037] As shown in Fig. 2, the multiple allocation planning devices 20, 21-1, 21-2, 22-1 to 22-4 are associated one-to-one with the multiple facility groups 0, 1-1, 1-2, 2-1 to 2-4. Accordingly, the allocation plan generation units 20a,...,2Na of the allocation planning devices 20,...,2N shown in Fig. 1 are also associated one-to-one with the multiple facility groups. Similarly, the re-planning determination units 20b,...,2Nb are also associated one-to-one with the multiple facility groups. Furthermore, the facility group monitoring units 20c,...,2Nc are also associated one-to-one with the multiple facility groups.
[0038] 1, the allocation plan generation units 2Na, etc. other than the allocation plan generation unit 20a are associated with equipment groups N, etc., at a layer lower than the top layer. Based on an allocation plan allocated from the equipment group immediately above it, each of these allocation plan generation units 2Na, etc. generates (or updates) allocation plans for the equipment groups positioned immediately below the equipment group to which it corresponds.
[0039] 1 determines whether or not replanning of the allocation plan is necessary for equipment A, B, etc. included in equipment group N. That is, if the difference between the allocation plan and the operation results of the equipment group N associated with itself is equal to or greater than a predetermined threshold, or if the allocation plan cannot be implemented in the equipment group N, the replanning determination unit 2Nb sends an instruction to replan the allocation plan to an allocation plan generation unit (not shown) of another equipment group (e.g., equipment group 1-1 in FIG. 2) positioned immediately above the equipment group N (e.g., equipment group 2-1 in FIG. 2).
[0040] 1 acquires the latest available capacities and operation records of facilities A, B, etc. from the facility control devices 31, 32, etc. The data acquired in this way is used for processing by the re-planning determination unit 2Nb, and is also sent to the integrated planning device 10 via higher-level allocation planning devices in sequence.
[0041] The equipment control device 31 shown in Fig. 1 includes a plan execution unit 31a and an equipment monitoring unit 31b. The plan execution unit 31a outputs a control command to a predetermined equipment A based on the allocation plan of the lowest-level equipment group N. The equipment monitoring unit 31b acquires the available capacity and operation record of the equipment A. The data of the equipment A acquired in this manner is transmitted from the equipment monitoring unit 31b to the integrated planning device 10 via the higher-level allocation planning devices in sequence. Note that the configuration of the equipment control device 32 that controls the equipment B is similar to that of the equipment control device 31, and therefore a description thereof will be omitted.
[0042] FIG. 4 is an explanatory diagram regarding re-planning of allocation plans and the like. As indicated by arrow W1 in Figure 4, the allocation planning device 22-1 acquires the available capacities and operation records of facilities A and B included in the facility group 2-1. For example, if facility A is a solar power generation facility, the actual predicted amount of solar radiation may be lower than the predicted amount of solar radiation based on the weather forecast, and the amount of power generated may fall below the planned value. In such a case, the allocation planning device 22-1 determines whether or not it is possible to re-plan the allocation plan within the facility group 2-1 based on the available capacities and operation records of facilities A and B.
[0043] For example, if it is possible to make up for the shortage of the amount of power generated by facility A (the difference between the allocation plan and the actual operation results) with the amount of power generated by facility B, the allocation planning device 22-1 re-plans the ratio plan for facilities A and B. Specifically, the allocation planning device 22-1 reduces the planned value of the amount of power generated by facility A, while increasing the planned value of the amount of power generated by facility B.
[0044] In this case, power is managed for the entire equipment group 2-1 in accordance with the allocation plan received from the upper-level allocation planning device 21-1. The allocation plans for the other equipment groups 2-2, 2-3, and 2-4 on the same hierarchical level, as well as the equipment groups 0, 1-1, and 1-2 on the upper hierarchical level, are also maintained as is. In this manner, in this embodiment, the allocation plan is re-planned to the minimum extent necessary. This significantly reduces the amount of calculations compared to re-planning all of the allocation plans and integrated plans for each equipment group. As a result, the re-planning process can be performed quickly and in a short time.
[0045] Furthermore, if replanning of the allocation plan is not possible within the equipment group 2-1, the allocation planning device 22-1 sends a replanning instruction to the allocation planning device 21-1 in the next higher hierarchical level (see arrow W2). In this case, the allocation planning device 21-1 determines whether replanning of the allocation plan is possible within the equipment group 1-1. If replanning of the allocation plan is possible within the equipment group 1-1, the allocation planning device 21-1 performs the replanning. For example, the allocation planning device 21-1 increases the planned value of the lower equipment group 2-1, while decreasing the planned value of the equipment group 2-2. In this case, power is operated in the equipment group 1-1 as a whole in accordance with the allocation plan received from the higher-level allocation planning device 20.
[0046] Furthermore, if replanning of the allocation plan is not possible within the equipment group 1-1, the allocation planning device 21-1 transmits a replanning instruction to the allocation planning device 20 in the next higher hierarchical level (see arrow W3). In this way, if the difference between the allocation plan and the actual operation results in a specific equipment group exceeds a specific threshold, or if the allocation plan cannot be executed with the available capacity of the equipment group, the process of issuing a replanning instruction to the allocation planning device in the next higher hierarchical level is performed sequentially toward the higher hierarchical levels (see arrows W1 to W4).
[0047] If it is not possible to re-plan the allocation plan in facility group 0, a re-planning instruction is sent from the allocation planning device 20 to the integrated planning device 10. In this case, the integrated planning device 10 updates the integrated plan as appropriate.
[0048] FIG. 5 is a functional block diagram including the integrated planning device 10 and the first storage unit 40. As shown in FIG. The dashed arrows in Fig. 5 indicate the flow of data when the integrated plan is updated. As shown in Fig. 5, the first storage unit 40 stores equipment group capacity information 41, equipment group capacity allocation information 42, service requirement information 43, service plan history information 44, plan evaluation history information 45, and plan history information 46.
[0049] FIG. 6 is an explanatory diagram of the facility group capability information 41. As shown in FIG. The equipment group capacity information 41 is information relating to the electrical capacity of each equipment group. In the example of FIG. 6, the equipment group capacity information 41 associates an equipment group ID, a power source type, a capacity item, a time, and a capacity value. The "equipment group ID" is identification information assigned to an equipment group. The "power source type" indicates the type of power source for the equipment group. In the example of FIG. 6, the "power source type" specifies whether renewable energy (renewable energy power source) or non-renewable energy (non-renewable energy power source) is used as the power source.
[0050] The "Capacity Item" shown in Figure 6 indicates the capacity of power supply, demand, or charging / discharging. The "Time" specifies a specific date and time. The "Capacity Value" indicates the power supply capacity, power demand capacity, and charging / discharging capacity. For example, for a facility with the facility group ID "Gr.XXX1," it indicates that the renewable energy supply capacity is 1000 kWh at a specific date and time.
[0051] FIG. 7 is an explanatory diagram regarding the facility group capacity allocation information 42. As shown in FIG. The facility group capacity allocation information 42 shown in Fig. 7 is information including allocation ratios when allocating the electrical capacity of each facility to multiple services. In the example of Fig. 7, the facility group capacity allocation information 42 associates a service ID, a service plan ID, a control time, a power source type, a capacity item, and an allocation ratio. A "service ID" is identification information assigned to each of multiple types of power services. A "service plan ID" is identification information assigned to a service-specific plan for a specific power service.
[0052] "Control time" is the start time of the execution of the service-specific plan. "Power source type" indicates the type of power source (renewable energy or non-renewable energy) used for a specified power service. "Capacity item" indicates which capacity among the power supply, demand, charge, and discharge amounts is used for the power service. "Allocation ratio" indicates the ratio at which the electrical capacity of multiple facilities A to H (see Figure 2) is allocated to multiple types of power services. For example, for a power service with service ID "S001," power supply using renewable energy starts at a specified control time based on a specified service-specific plan, and the allocation ratio of electrical capacity at that time is set to 0.20.
[0053] 5 allocates electrical capacity to a plurality of types of power services α, β, and γ at a predetermined allocation ratio based on the above-mentioned facility group capacity information 41 and facility group capacity allocation information 42. The method for setting the allocation ratio will be described later.
[0054] FIG. 8 is an explanatory diagram of the service requirement information 43. As shown in FIG. The service requirement information 43 shown in FIG. 8 is information indicating requirements when generating a plan for a specific power service. In the example of FIG. 8, the service requirement information 43 associates a service ID, a requirement item, a target value, and a set value. A "service ID" is identification information assigned to each of multiple types of power services. A "requirement item" indicates the type of requirement (objective function, constraint condition, etc.) when generating a plan for the power service. A "target value" indicates the main target used in the requirement item. A "set value" indicates what the target value should be in the requirement item. For example, for power service α, the objective function is set to minimize energy cost.
[0055] 5 generates service-specific plans for each of a plurality of types of power services α, β, and γ based on service requirement information 43. Then, the integrated planning device 10 stores data of the service-specific plans as service plan history information 44 in the first storage unit 40.
[0056] FIG. 9 is an explanatory diagram regarding the service plan history information 44. As shown in FIG. The service plan history information 44 shown in FIG. 9 is information showing the history of a service plan. In the example of FIG. 9, the service plan history information 44 associates a service ID, a service plan ID, a control plan ID, a control time, an equipment group ID, a power source type, a capacity item, and a planned value. The "control plan ID" is identification information for the control plan (allocation plan) related to the highest-level equipment group 0 (see FIG. 2). The "equipment group ID" is identification information for the highest-level equipment group 0. The "planned value" is a planned value when a predetermined electrical capacity (for example, power generation capacity) is used for a predetermined power service identified by the service ID. Note that the remaining items are the same as those explained in FIG. 7 etc., and therefore their explanation will be omitted.
[0057] 5 generates an integrated plan that integrates the service-specific plans of multiple types of power services α, β, and γ. The integrated plan generation unit 12 also generates plan evaluation history information 45 and plan history information 46, which will be described next.
[0058] FIG. 10 is an explanatory diagram regarding the plan evaluation history information 45. As shown in FIG. The plan evaluation history information 45 shown in FIG. 10 is information showing the evaluation history of the allocation ratio of electrical capacity to a predetermined service-specific plan. In the example of FIG. 10, the plan evaluation history information 45 associates a service ID, a service plan ID, an evaluation item, and an evaluation value. The "evaluation item" is an item that serves as an index when evaluating a service-specific plan. The "evaluation value" is the value of the evaluation item described above. Note that the remaining items are the same as those explained in FIG. 9 and so on, and therefore their explanation will be omitted. For example, for an electricity service with a service ID of "S001", the evaluation value of the power generation cost is a predetermined value.
[0059] FIG. 11 is an explanatory diagram regarding the plan history information 46. The plan history information 46 shown in FIG. 11 is information showing the history of allocation plans for each facility group. In the example of FIG. 11, the plan history information 46 associates a control plan ID, a control time, an facility group, a power source type, a capacity item, and a planned value. The "control plan ID" is identification information assigned to each control plan (allocation plan) for each facility group. Note that the remaining items are the same as those explained in FIG. 9 and so on, and therefore their explanation will be omitted. As shown in FIG. 11, the plan history information 46 (information related to allocation plans) does not include data related to power services.
[0060] FIG. 12 is a functional block diagram including the allocation planning device 2N and the second storage unit 50. 12, the second storage unit 50 stores plan history information 46, plan setting information 51, equipment group capacity information 41, and operation result information 52. Of the information stored in the second storage unit 50, the plan history information 46 (see FIG. 11) and the equipment group capacity information 41 (see FIG. 6) have already been explained, so a repeated explanation will be omitted.
[0061] FIG. 13 is an explanatory diagram regarding the plan setting information 51. As shown in FIG. The plan setting information 51 shown in FIG. 13 is information including the unit cost and margin weight when operating power in each facility group. In the example of FIG. 13, the plan setting information 51 associates facility group IDs, power source types, capacity items, time, unit costs, and margin weights. The "unit cost" indicates the cost per unit time and unit amount of power when operating the facility group. The "margin weight" indicates the ratio of the capacity actually used to the capacity value of a specified facility group. The remaining items are the same as those explained in FIG. 9 and so on, and therefore their explanation will be omitted.
[0062] 12, the allocation plan generation unit 2Na of the allocation planning device 2N generates an allocation plan based on the plan history information 46, the plan setting information 51, and the equipment group capacity information 41. Details of the generation of the allocation plan will be described later. In addition, the equipment group monitoring unit 2Nc acquires operation performance information and the like of the equipment groups directly under it.
[0063] FIG. 14 is an explanatory diagram regarding the operation performance information 52. The operation result information 52 shown in Fig. 14 is information indicating the operation result of each equipment group. In the example of Fig. 14, the operation result information 52 associates a control plan ID, a control time, an equipment group, a power source type, a capacity item, and an actual result value. The "actual result value" is the actual value of the power (generated power, consumed power, and charged / discharged power) operated by a specific equipment group. The remaining items are the same as those explained in Fig. 9 etc., and therefore explanations thereof will be omitted.
[0064] FIG. 15 is a sequence diagram relating to the generation of an integrated plan and an allocation plan of the power operation management system (see also FIG. 2 as appropriate). 15, the allocation planning device 21-1 corresponding to the equipment group 1-1 and the allocation planning device 22-1 corresponding to the equipment group 2-1 at the lowest level are shown as representative devices at a lower level than the equipment group 0. In other words, the other allocation planning devices 21-2, 22-2 to 22-4 are not shown in the figure.
[0065] In step S101, the integrated planning device 10 acquires predetermined data from the allocation planning device 20 of the equipment group 0. This data includes the most recent available capacity and operation record of the equipment group 0 as a whole. In step S102, the integrated planning device 10 generates an integrated plan. That is, the integrated planning device 10 generates the integrated plan by integrating a plurality of service-specific plans based on the data acquired in step S101.
[0066] In step S103, the integrated planning device 10 transmits the integrated plan to the allocation planning device 20 of the facility group 0. In step S104, the allocation planning device 20 of the facility group 0 generates allocation plans for the facility groups 1-1 and 1-2 (see FIG. 2) at the next lower level based on the integrated plan. In step S105, the allocation planning device 20 of the facility group 0 transmits the allocation plan of the facility group 1-1 to the allocation planning device 21-1. Also, although not shown in Fig. 15, the allocation planning device 20 of the facility group 0 transmits the allocation plan of the facility group 1-2 (see Fig. 2) to the allocation planning device 21-2 (see Fig. 2).
[0067] In step S106, the allocation planning device 21-1 of the facility group 1-1 generates allocation plans for the facility groups 2-1 and 2-2 (see FIG. 2) at the next lower level based on the allocation plan it has received. In step S107, the allocation planning device 21-1 of the equipment group 1-1 transmits the allocation plan of the equipment group 2-1 to the allocation planning device 22-1. Also, although not shown in Fig. 15, the allocation planning device 21-1 of the equipment group 1-1 transmits the allocation plan of the equipment group 2-2 (see Fig. 2) to the allocation planning device 22-2 (see Fig. 2). In this way, allocation plans are generated sequentially from the upper hierarchical level to the lower hierarchical level.
[0068] FIG. 16 is a sequence diagram relating to updating of the allocation plan of the power operations management system (see also FIG. 2 as appropriate). 16 shows a case where the allocation planning device 22-1 of the equipment group 2-1 determines that re-planning of the allocation plan is required. For example, suppose that the allocation plan and actual operation results for equipment A and B included in the equipment group 2-1 diverge, and re-planning within the equipment group 2-1 is not sufficient. In such a case, in step S201, the allocation planning device 22-1 of the equipment group 2-1 determines that re-planning is required at a higher level.
[0069] In step S202, the allocation planning device 22-1 transmits an instruction to re-plan the allocation plan to the allocation planning device 20 of the equipment group 1-1. In step S203, the allocation planning device 21-1 of the equipment group 1-1 re-plans the allocation plan, ie, re-plans the allocation plans of the lower-level equipment groups 2-1 and 2-2 (see FIG. 2) included in the equipment group 1-1.
[0070] In step S204, the allocation planning device 21-1 of the equipment group 1-1 transmits the re-planned allocation plan to the allocation planning device 22-1 of the equipment group 2-1. Although not shown in Fig. 16, the allocation planning device 21-1 of the equipment group 1-1 also transmits the re-planned allocation plan to the allocation planning device 22-2 (see Fig. 2) of another equipment group 2-2 (see Fig. 2).
[0071] In step S205, the allocation planning device 22-1 of the equipment group 2-1 updates the allocation plans of equipment A and B (see FIG. 2) based on the re-planned allocation plan. Also, although not shown in FIG. 16, the allocation planning device 22-2 (see FIG. 2) of another equipment group 2-2 (see FIG. 2) updates the allocation plans of equipment C and D (see FIG. 2) based on the re-planned allocation plan. In this case, re-planning is performed within the equipment group 1-1, but the allocation plans are maintained as they are in the other equipment group 1-2 (see FIG. 2) on the same hierarchical level and the top-level equipment group 0 (see FIG. 2). In this way, the range of equipment groups when updating the allocation plan is minimized, allowing the allocation plan to be updated quickly with a small amount of calculation.
[0072] FIG. 17 is a flowchart showing the processing of the integrated planning device (see also FIG. 1 as appropriate). In step S301, the integrated planning device 10 generates a service-specific plan using the service-specific resource allocation unit 11 (service-specific resource allocation step). That is, the integrated planning device 10 allocates the electrical capabilities of multiple pieces of equipment A to H (see FIG. 2) in the power system to multiple types of power services α, β, and γ to generate a service-specific plan.
[0073] More specifically, the integrated planning device 10 calculates the upper and lower capacity limits (R tijk ^LB,R tijk ^UB). The integrated planning device 10 also calculates the allocation ratio r for a predetermined service s based on the facility group capacity allocation information 42 (see FIG. 7). stjk Then, the integrated planning device 10 reads the value of the capacity upper limit value and the capacity lower limit value (R tijk ^LB,R tijk ^UB) and allocation ratio r stjk Based on this, the lower limit of the capacity range when allocating electrical capacity to service s is set as r stjk ×R tijk ^LB and set the upper limit to r stjk ×R tijk The integrated planning device 10 generates a service-specific plan within this capacity range.
[0074] Next, in step S302, the integrated planning device 10 acquires predetermined data from the allocation planning device 20 of the equipment group 0. That is, the integrated planning device 10 acquires data on the most recent available capacity and operation results of the equipment group 0 as a whole from the allocation planning device 20.
[0075] In step S303, the integrated planning device 10 integrates the service-specific plans to generate an integrated plan (integrated plan generation step). For example, the integrated planning device 10 calculates the planned value of capacity k of power source type j at time t for service s as L stjkBased on the sum of the planned values of all services, the integrated planned value x tjk Calculate (x tjk =Σ s L stjk ) As another example, the evaluation value V of each service s s The integrated planning device 10 calculates the allocation ratio r using a genetic algorithm or the like so that stjk The data of the integrated plan is stored as plan history information 46 (see FIG. 11) in the first storage unit 40 (see FIG. 5) or the second storage unit 50 (see FIG. 12).
[0076] Next, in step S304, the integrated planning device 10 transmits the integrated plan to the allocation planning device 20 of the facility group 0. In step S305, the integrated planning device 10 determines whether or not an update request has been received from the allocation planning device 20 of facility group 0. If an update request has been received from the allocation planning device 20 of facility group 0 (S305: Yes), the processing of the integrated planning device 10 proceeds to step S307. On the other hand, if an update request has not been received from the allocation planning device 20 of facility group 0 (S305: No), the processing of the integrated planning device 10 proceeds to step S306.
[0077] In step S306, the integrated planning device 10 determines whether a predetermined time has elapsed since the most recent data was acquired. If the predetermined time has not elapsed since the most recent data was acquired (S306: No), the integrated planning device 10 repeats the processing of step S306. Also, if the predetermined time has elapsed since the most recent data was acquired in step S305 (S306: Yes), the processing of the integrated planning device 10 proceeds to step S307.
[0078] In step S307, the integrated planning device 10 acquires data on the latest available capacity and operation results from the allocation planning device 20 of the facility group 0. In step S308, the integrated planning device 10 updates the integrated plan. In step S309, the integrated planning device 10 transmits the updated integrated plan to the allocation planning device 20 of the facility group 0. After performing the processing of step S309, the processing of the integrated planning device 10 returns to "START" (RETURN).
[0079] FIG. 18 is a flowchart showing the processing of the allocation planning device (see also FIG. 1 as appropriate). In step S401, the allocation planning device 2N (N=0, 1, 2, . . .) determines whether or not a control instruction has been received from its immediate superior. That is, the allocation planning device 2N determines whether or not an allocation plan has been received as a control instruction from the allocation planning device of the equipment group (e.g., equipment group 1-1) immediately above the equipment group (e.g., equipment group 2-1) corresponding to itself. If there is no control instruction from its immediate superior in step S401 (S401: No), the allocation planning device 2N repeats the processing of step S401. Also, if there is a control instruction from its immediate superior in step S401 (S401: Yes), the processing of the allocation planning device 2N proceeds to step S402.
[0080] In step S402, the allocation planning device 2N generates an allocation plan for the immediately lower facility group by the allocation plan generating unit 2Na (allocation plan generating step). It is assumed that an allocation plan is generated by each of the multiple allocation plan generating units in each hierarchy. For example, the allocation planning device 2N generates an allocation plan value x for capacity k of power source type j of immediately lower facility group i at time t. tijk is calculated based on the mixed integer programming method. tijk The domain of the capacity upper limit and lower limit (R tijk ^LB,R tijk ^UB), that is, the allocation plan value x tijk The domain of R tijk ^LB <x tijk <R tijk It is set as ^UB.
[0081] The allocation planning device 2N sets an objective function as shown in the following formula (1) so as to minimize the operation cost of the equipment group and maximize the spare rate of the equipment capacity. tijk is the unit cost of capacity k of power generation type j in facility group i at time t, and W tijk is the margin weight. As mentioned above, the margin weight is the ratio of the capacity actually used to the capacity value of a specific equipment group. These unit costs c tijk and margin weight W tijk is included in the plan setting information 51 (see FIG. 13).
[0082]
number
[0083] In addition, the allocation planning device 2N receives the upper-level planned value X from the allocation planning device of the immediately upper equipment group. tjk and the allocation plan value x of the equipment group corresponding to the allocation plan device 2N tijk and are set as follows for each ability k:
[0084] Supply capacity (k=1):X tj1 =G tj ,x tij1 =g tij Demand capacity (k=2):X tj2 =D tj ,x tij2 =d tij Power storage capacity (k=3):X tj3 =B tj ,x tij3 =b tij Charging capacity (k=4):X tj4 =P tj ,x tij4 =p tij Supply capacity (k=5):X tj5 =Q tj ,x tij5 =q tij
[0085] The allocation planning device 2N performs the following process when allocating each capacity. That is, with regard to the amount of power supply, the allocation planning device 2N makes the sum of the amount of power supply and the amount of discharge in the allocation plan received from the upper side equal to the total sum of the amount of power supply and the amount of discharge of the equipment group on the lower side. In other words, the allocation planning device 2N makes sure that the following equation (2) holds true.
[0086]
number
[0087] Furthermore, the allocation planning device 2N makes the sum of the power demand and the charge amount in the allocation plan received from the upper side equal to the sum of the power demand and the charge amount in the lower side equipment group. In other words, the allocation planning device 2N makes the following equation (3) hold.
[0088]
number
[0089] Furthermore, the allocation planning device 2N makes the amount of stored power in the allocation plan received from the upper side equal to the total amount of stored power of the lower side equipment group. In other words, the allocation planning device 2N makes it so that the following formula (4) holds true.
[0090]
number
[0091] The amount of stored electricity at time t+1 is calculated by adding the amount of charge to the amount of stored electricity at time t and then subtracting the amount of discharge. Therefore, the relationship between the storage capacity and the amount of charge and discharge is expressed by the following equation (5).
[0092]
number
[0093] After generating the allocation plan in this manner, the processing of the allocation planning device 2N proceeds to step S403. In step S403, the allocation planning device 2N transmits the allocation plan to the allocation planning device immediately below. Note that if the allocation planning device 2N corresponds to an equipment group in the lowest layer, the allocation plan is transmitted to a predetermined equipment control device.
[0094] In step S404, the allocation planning device 2N determines whether a predetermined time has passed since the allocation plan was transmitted. If the predetermined time has not passed since the allocation plan was transmitted (S404: No), the allocation planning device 2N repeats the processing of step S404. If the predetermined time has passed since the allocation plan was transmitted (S404: Yes), the processing of the allocation planning device 2N proceeds to step S405.
[0095] In step S405, the allocation planning device 2N acquires data of its immediate subordinates. That is, the allocation planning device 2N acquires data including available capacity and operation results from another allocation planning device of an equipment group immediately subordinate to the equipment group managed by itself.
[0096] In step S406, the allocation planning device 2N determines whether or not the allocation plan needs to be updated. If the allocation plan needs to be updated (S406: Yes), the processing of the allocation planning device 2N proceeds to step S407. On the other hand, if the allocation plan does not need to be updated in step S406 (S406: No), the processing of the allocation planning device 2N returns to step S404.
[0097] The above-mentioned "rescheduling" of an allocation plan is considered to be included in "updating" an allocation plan. "Rescheduling" of an allocation plan is a process in which an allocation planning device directly above allocates planned values, etc. to multiple equipment groups based on a rescheduling instruction from an allocation planning device that manages multiple equipment groups. In this case, the planned values, etc. of the equipment groups managed by the higher-level allocation planning device are maintained as they are. Note that a new allocation plan may be allocated from the higher-level side, which may change the allocation plan of the equipment group corresponding to the allocation planning device. Such a process is also considered to be included in "updating" an allocation plan.
[0098] In step S407, the allocation planning device 2N updates the allocation plan. For example, the allocation plan value X tijk and operational performance Y tijk The cumulative difference δ tijk Specifically, the allocation planning device 2N may determine whether or not the allocation plan needs to be updated based on the cumulative value δ tijk Calculate.
[0099]
number
[0100] The allocation planning device 2N calculates the cumulative value δ tijk If exceeds the predetermined threshold, the upper and lower capacity limits of the equipment group (R tijk ^LB,R tijk Then, the allocation planning device 2N calculates the changed upper and lower capacity limits (R tijk ^LB,R tijk Update the allocation plan to stay within the range of ^UB).
[0101]
number
[0102]
number
[0103] Alternatively, the allocation plan value X tijk and operational performance Y tijk The cumulative squared error ε tijk It may be determined whether or not the allocation plan needs to be updated based on the cumulative square error ε tijk is calculated based on the following equation (9):
[0104]
number
[0105] The allocation planning device 2N calculates the cumulative square error ε tijk exceeds a predetermined threshold, the margin rate weight W included in the plan setting information 51 (see FIG. 13) is calculated based on a preset reflection rate σ (0<σ<1). tijk is updated as shown in the following equation (10) to update the allocation plan.
[0106]
number
[0107] Furthermore, when determining whether or not the allocation plan needs to be updated, the allocation planning device 2N may determine whether or not the allocation plan can be executed with the most recent available capacity of the lower-level equipment group. tijk ^LB,R tijk If the allocation plan cannot be executed using ^UB), the allocation planning device 2N updates the equipment group capacity information 41 (see FIG. 6) based on the following equation (11).
[0108]
number
[0109] After updating the allocation plan in this way, the allocation planning device 2N transmits the updated allocation plan to its immediate subordinates in step S408. That is, the allocation planning device 2N transmits the updated allocation plan to the allocation planning devices of the equipment groups immediately subordinate to the equipment group that it manages. After performing the processing of step S408, the processing of the allocation planning device 2N returns to "START" (RETURN).
[0110] FIG. 19 is a flowchart showing the processing of the equipment control device (see also FIG. 1 as appropriate). The following describes the processing of the equipment control device 31 that controls the equipment A, but the same applies to the other equipment control devices 32 and the like. In step S501, the equipment control device 31 acquires data on the control target. That is, the equipment control device 31 acquires data on the available capacity and operation record of equipment A via the equipment monitoring unit 31b.
[0111] In step S502, the equipment control device 31 transmits data to the immediately upper allocation planning device. That is, the equipment control device 31 transmits data on the available capacity and operation record of facility A to the allocation planning device 22-1 (see FIG. 2) associated with the lowest level equipment group 2-1 (see FIG. 2) that includes facility A. This data is transmitted from the allocation planning device 22-1 to the integrated planning device 10 (see FIG. 2) via the allocation planning devices 21-1 and 20 (see FIG. 2) in sequence.
[0112] In step S503, the equipment control device 31 determines whether or not a control instruction has been received from the immediately-higher allocation planning device. That is, the equipment control device 31 determines whether or not a predetermined allocation plan has been received as a control instruction from the immediately-higher allocation planning device 22-1 associated with the equipment group 2-1 that includes equipment A. If a control instruction has been received from the immediately-higher allocation planning device in step S503 (S503: Yes), the processing of the equipment control device 31 proceeds to step S504. On the other hand, if a control instruction has not been received from the immediately-higher allocation planning device (S503: No), the equipment control device 31 repeats the processing of step S503.
[0113] In step S504, the equipment control device 31 executes control based on the control instruction (plan execution step). That is, the equipment control device 31 outputs a control command to a predetermined piece of equipment based on the allocation plan of the lowest-level equipment group. Specifically, the equipment control device 31 controls equipment A based on the predetermined allocation plan received as a control instruction from the allocation planning device 22-1 (see FIG. 2). After performing the processing of step S504, the processing of the equipment control device 31 returns to "START" (RETURN).
[0114] FIG. 20 shows an example of a display screen for comparing service evaluation values based on resource allocation ratios (see also FIG. 1 as appropriate). In the example of FIG. 20, a radar chart R1 relating to five types of predetermined performance indicators is displayed on the display device 60 (see FIG. 1). For example, the operating cost (unit cost) of electricity, or the availability or efficiency of each piece of equipment may be used as these performance indicators. In the example of FIG. 20, three resource allocation plans X, Y, and Z are proposed. These resource allocation plans X, Y, and Z may be set as defaults or may be proposed by AI.
[0115] For example, resource allocation plan X proposes using 60% of the resources (electricity) for power service α, 30% for power service β, and 10% for power service γ. Resource allocation plan X is displayed as a solid line in radar chart R1. A check box is provided on the right side of each of resource allocation plans X, Y, and Z on the screen. In the example of Figure 20, resource allocation plan Y has been selected by input operation by the user. In this state, if the "Adopt checked resource allocation ratio" button B3 is selected, a service-specific plan will be generated based on resource allocation plan Y.
[0116] In this way, when the service-specific resource allocation unit 11 (see FIG. 1) generates a service-specific plan, it may display on the display device 60 (see FIG. 1) a screen T1 that proposes to the user a plurality of allocation ratios of electrical capacity to a plurality of types of power services, and may also display the values of predetermined performance indexes when each allocation ratio is applied on the screen T1. Then, when a predetermined allocation ratio is selected by an input operation by the user on this screen T1, the service-specific resource allocation unit 11 (see FIG. 1) generates (or updates) a service-specific plan based on the allocation ratio.
[0117] It is also possible for the user to input numerical values for the resource allocation ratio for each power service. In the example of Fig. 20, as shown in setting field G1, the allocation ratios are set so that 80% of resources are used for power service α, 10% of resources are used for power service β, and 10% of resources are used for power service γ. In this state, when the "Evaluate user-specified allocation ratio" button B1 is operated, the evaluation results are displayed on radar chart R1.
[0118] In this way, the screen T1 on which the user sets the allocation ratio of the electric capacity to the multiple types of power services is displayed, and the value of the predetermined performance index when this allocation ratio is applied may also be displayed on the screen T1. When the predetermined allocation ratio is set by the user's input operation, the service-specific plan is generated (or updated) based on the allocation ratio.
[0119] In addition, when the "Perform optimization calculation of allocation ratio" button B2 is operated, the optimal allocation ratio is calculated based on a predetermined algorithm. The optimal allocation ratio calculated in this way is displayed together with a radar chart in a predetermined manner.
[0120] FIG. 21 is an example of a display of the fulfillment status of the integrated plan. In the display setting field G2 shown in FIG. 21, the "power source," "item," and "granularity" are selected by user input, and the "period" is set to "1 hour ago - latest." The type of "power source" can be selected, for example, from renewable energy or non-renewable energy. The "item" is selected appropriately from, for example, the amount of power supply, demand, and charge / discharge. The "granularity" is the sampling interval when the trends in the replanning index as well as the planned and actual amounts are displayed in a graph.
[0121] The line graph G3 in FIG. 21 shows the transition of the re-planning index for the integrated plan. Note that the horizontal axis of the coordinates in the line graph G3 represents time, and the vertical axis represents the re-planning index. Here, the "re-planning index" is an index indicating the degree of recommendation for re-planning for the service-specific plan. The dashed line L1 is a preset threshold value of the re-planning index that serves as a criterion for determining whether or not re-planning should be performed. In this way, after the service-specific resource allocation unit 11 (see FIG. 1) generates the service-specific plan, the transition of the re-planning index for the service-specific plan may be displayed on the display device 60 (see FIG. 1).
[0122] Bar graph G4 in Figure 21 shows the changes in planned and actual amounts in the service-specific plan. The horizontal axis of the coordinates in bar graph G4 represents time, and the vertical axis represents the planned and actual amounts in the service-specific plan. In the example in Figure 21, the changes in planned values for power operation are displayed as bar graphs for each power service. In addition, the actual values for each time period up to the present are displayed adjacent to the planned values.
[0123] In this way, after the service-specific resource allocation unit 11 (see FIG. 1) generates a service-specific plan, the display device 60 (see FIG. 1) may display the trends in the predetermined planned values and actual values for the power service. This allows the user to grasp the trends in the planned and actual amounts of the service-specific plan at a glance. The bar graph G5 shows the cumulative total of the planned values related to power operation by service, as well as the cumulative total of the actual values. The "Manual Rescheduling" button B4 shown in FIG. 21 is a button that is operated when the user manually reschedules the service-specific plan via an input device (not shown).
[0124] FIG. 22 is a display example of the fulfillment status of the allocation plan. In the display setting field G6 shown in Fig. 22, the "target", "power source", "item", and "granularity" are selected by user input operations, and the "period" is set to "1 hour ago - latest". In the "target" field, one of multiple facility groups is selected. The remaining items are the same as those explained in the display setting field G2 of Fig. 21, so explanations will be omitted.
[0125] The line graph G7 in Fig. 22 shows the transition of the re-planning index for the allocation plan. The dashed line L2 is a preset threshold value of the re-planning index that serves as a criterion for determining whether or not re-planning should be performed. In this way, after the allocation plan generation unit 2Na (see Fig. 1) generates an allocation plan, the transition of the re-planning index for that allocation plan may be displayed on the display device 60 (see Fig. 1).
[0126] The bar graph G8 in FIG. 22 shows the changes in the planned and actual amounts of power operation for each equipment group. In addition, the actual values for each equipment group at each time up to the present are displayed adjacent to the planned values. In this way, after the allocation plan generation unit 2Na (see FIG. 1) generates an allocation plan, the changes in the predetermined planned and actual values for the equipment group may be displayed on the display device 60 (see FIG. 1). This allows the user to see at a glance how the planned and actual amounts of the allocation plan are changing.
[0127] The bar graph G9 in Fig. 22 shows the cumulative total of planned values related to power operation for each facility group, as well as the cumulative total of actual values. The "Manual Re-plan" button B5 shown in Fig. 22 is a button that is operated when the user manually re-plans the allocation plan via an input device (not shown).
[0128] FIG. 23 is a display example of the sufficiency status of all tiers. In the display setting field G10 shown in Fig. 23, "power supply," "item," and "granularity" are selected by user input operations, and the "period" is set to "1 hour ago to latest." Each of these items is the same as those described in the display setting field G2 of Fig. 21, so description thereof will be omitted.
[0129] The information column G11 of the cloud-side EMS shows the allocation ratio when the planned value (shown as "Plan" in FIG. 23) related to the operation of power is allocated to the power services α, β, and γ in the integrated planning device 10 (see FIG. 1). It also shows that the actual operation results (shown as "Actual results" in FIG. 23) at that time are as planned (i.e., 100%).
[0130] The equipment group information column G12 displays the hierarchical inclusion relationships of each equipment group. This allows the user to grasp the inclusion relationships of each equipment group at a glance. In addition, the planned value for each equipment group in the lower hierarchical level is displayed, assuming that the planned value assigned to the top-level equipment group 0 is 100. The most recent actual value is also shown numerically. In this way, after the allocation plan generation unit 2Na (see FIG. 1) generates an allocation plan, a screen T4 showing the hierarchical inclusion relationships may be displayed on the display device 60 (see FIG. 1), and the planned value and actual value for each equipment group may also be displayed on the screen T4.
[0131] In the example of FIG. 23, a planned value of 50 is assigned to each of the equipment groups 1-1 and 1-2 directly below it, starting from the top-level equipment group 0. It can also be seen that the actual value of one equipment group, 1-1, is 45, which is below the planned value, while the actual value of the other equipment group, 1-2, is 55, which is above the planned value. In other words, the sum of the actual values of equipment groups 1-1 and 1-2 is 100, and overall, operations are progressing as planned. By displaying the planned and actual values in this way, the user can easily grasp the power operation status of each equipment group.
[0132] In the example of FIG. 23, the planned value for facility D is 10, while the actual value is 5. When the actual value is significantly lower (or higher) than the planned value in this way, for example, it may be surrounded by an elliptical line G13 to make it easier for the user to understand the status of facility D. Note that the actual value of facility D may be displayed with an exclamation mark or in a different color or pattern from the others. The "Manual Rescheduling" button B6 shown in FIG. 23 is a button that is operated when the user manually reschedules the allocation plan via an input device (not shown).
[0133] <Effects> According to this embodiment, allocation plans for multiple facility groups having a hierarchical inclusion relationship are generated (or updated) sequentially from the lowest level to the highest level based on an integrated plan that integrates the service-specific plans for multiple types of power services. Therefore, even if a power service is added or changed, it can be flexibly handled by updating each allocation plan sequentially from the highest level to the highest level after updating the integrated plan.
[0134] Furthermore, if there is a deviation between the allocation plan and the actual operation results, the allocation plan is updated to the minimum extent necessary. This reduces the amount of calculation required to update the allocation plan, making it possible to respond quickly in a short amount of time according to the moment-to-moment operation status of facilities A to H. Furthermore, because the allocation plan is updated quickly, it is possible to operate the power system efficiently while ensuring its stability.
[0135] Furthermore, because the allocation plan is generated based on the integrated plan, it is possible to avoid a situation where control instructions based on multiple power services are output to one facility (conflict of control instructions). Even when using renewable energy, whose generated power is prone to fluctuations due to weather, etc., the allocation plan is updated in a short time, allowing for a prompt response. In this way, according to this embodiment, it is possible to ensure reliability when operating facilities A to H at multiple locations while providing multiple types of power services.
[0136] <<Variations>> The power operations management system 100 and the power operations management method according to the present disclosure have been described above in the embodiments, but the present disclosure is not limited to these descriptions and various modifications can be made. For example, in the embodiments, a case where the facility groups have a three-layer hierarchical structure has been described (see FIGS. 2 and 3), but this is not limiting. That is, the facility groups may have a two-layer hierarchical structure, or a four-layer or more hierarchical structure.
[0137] Furthermore, in the embodiment, the case where the number of directly subordinate facility groups or facilities managed by each allocation planning device (for example, allocation planning device 21-1 in FIG. 2) is two has been described, but the number may be three or more.
[0138] Furthermore, in the embodiment, a case has been described in which one allocation planning device (e.g., allocation planning device 21-1 in FIG. 2) is associated with one facility group (e.g., facility group 1-1 in FIG. 2), but this is not limiting. For example, one allocation planning device may be associated with multiple facility groups on the same hierarchical level. In this case, the allocation planning device has multiple allocation plan generation units, re-planning determination units, and facility group monitoring units so as to correspond to multiple facility groups.
[0139] Also, one allocation planning device may be associated with multiple facility groups in different hierarchical levels. Alternatively, for example, one allocation planning device may manage multiple facility groups belonging to a predetermined hierarchical level and multiple facility groups belonging to another hierarchical level. Also, one computer may function as both the integrated planning device 10 and a predetermined allocation planning device (e.g., allocation planning device 20).
[0140] The process (power operations management method) executed by the power operations management system 100 may be executed as a predetermined program on a computer. The program may be provided via a communication line, or may be written to a recording medium such as a CD-ROM and distributed.
[0141] Furthermore, the present disclosure is not limited to the embodiments and includes various modifications. For example, the embodiments have been described in detail to clearly explain the present disclosure, and the present disclosure is not necessarily limited to those including all of the described configurations. Furthermore, it is possible to add, delete, or replace part of the configuration of the embodiments with other configurations.
[0142] Furthermore, the above-mentioned configurations, functions, processing units, processing means, etc. may be partly or entirely implemented in hardware, for example, by designing them as integrated circuits. Furthermore, the above-mentioned configurations, functions, etc. may be implemented in software, with a processor interpreting and executing a program that implements each function. Information such as the programs, tables, and files that implement each function can be stored in a memory, a recording device such as a hard disk or SSD (Solid State Drive), or a recording medium such as an IC card, SD card, or DVD.
[0143] In addition, the control lines and information lines shown are those that are considered necessary for the explanation, and do not necessarily show all the control lines and information lines in the product. In reality, it can be assumed that almost all components are interconnected. [Explanation of symbols]
[0144] 0,1-1,1-2,2-1,2-2,2-3,2-4,N Equipment Group 10 Integrated Planning Device 11 Service-specific resource allocation section 12 Integrated Plan Generation Unit 20, 20M, 21-1, 21-2, 22-1, 22-2, 22-3, 22-4 Allocation planning device 20a,2Na Allocation plan generation unit 20b,2Nb Re-planning judgment section 20c, 2Nc Equipment Group Monitoring Department 31, 32 Equipment control device 31a, 32a Planning and Implementation Department 31b,32b Equipment monitoring department 40 1st memory section 50 2nd memory section 60 Display device 100 Power operation management system A,B,C,D,E,F,G,H equipment α,β,γ Electricity service S301 Step (Service-specific resource allocation step) S303 step (integrated plan generation step) S402 Step (Allocation plan generation step) S504 Step (Plan Execution Step)
Claims
1. a service-specific resource allocation unit that allocates electrical capacities of a plurality of facilities in the power system to a plurality of types of power services to generate a service-specific plan; an integrated plan generation unit that integrates the service-specific plans to generate an integrated plan; a plurality of allocation plan generation units that correspond one-to-one to a plurality of equipment groups in a hierarchical inclusion relationship, with a predetermined group of the plurality of facilities at the bottom, and generate predetermined allocation plans; a plan execution unit that outputs a control command to a predetermined piece of equipment based on an allocation plan of the equipment group in the lowest layer, Among the plurality of allocation plan generation units, one corresponding to the top-level equipment group generates or updates allocation plans for the plurality of equipment groups positioned immediately below that equipment group based on the integrated plan; In the power operations management system, among the multiple allocation plan generation units, one corresponding to an equipment group at a level lower than the top level generates or updates allocation plans for multiple equipment groups positioned immediately below the equipment group based on an allocation plan allocated from the equipment group immediately above.
2. a replanning determination unit that is associated with the plurality of facility groups on a one-to-one basis and determines whether or not replanning of the allocation plan is necessary; When the difference between the allocation plan and the operation results of the equipment group associated with itself is equal to or greater than a predetermined threshold, or when the allocation plan cannot be implemented in the equipment group, the re-planning determination unit transmits an instruction to re-plan the allocation plan to the allocation plan generation unit of the equipment group positioned immediately above the equipment group. The power operation management system according to claim 1 .
3. a replanning determination unit that is associated with the plurality of facility groups on a one-to-one basis and determines whether or not replanning of the allocation plan is necessary; Among the plurality of re-planning determination units, the one corresponding to the top-level equipment group transmits an instruction to re-plan the integrated plan to the integrated plan generation unit when a difference between the integrated plan and the actual operation results in the equipment group is equal to or greater than a predetermined threshold, or when the integrated plan cannot be implemented in the equipment group. The power operation management system according to claim 1 .
4. The allocation plan does not include data regarding the electricity service. The power operation management system according to claim 1 .
5. When the service-specific resource allocation unit generates the service-specific plan, a screen is displayed on a display device, proposing to a user a plurality of allocation ratios of the electrical capacity to the plurality of types of power services, and the value of a predetermined performance index when each of the allocation ratios is applied is also displayed on the screen; When a predetermined allocation ratio is selected by a user's input operation on the screen, the service-specific resource allocation unit generates or updates the service-specific plan based on the allocation ratio. The power operation management system according to claim 1 .
6. When the service-specific resource allocation unit generates the service-specific plan, a screen is displayed on a display device, allowing a user to set an allocation ratio of electrical capacity to the plurality of types of power services, and a value of a predetermined performance index when the allocation ratio is applied is also displayed on the screen; When the allocation ratio is set by a user's input operation on the screen, the service-specific resource allocation unit generates or updates the service-specific plan based on the allocation ratio. The power operation management system according to claim 1 .
7. After the service-specific resource allocation unit generates the service-specific plan, a transition of a re-planning index indicating a degree of recommendation for re-planning of the service-specific plan is displayed on a display device. The power operation management system according to claim 1 .
8. After the service-specific resource allocation unit generates the service-specific plan, a display device is displayed showing the transition of a predetermined planned value and an actual value for the power service. The power operation management system according to claim 1 .
9. After the allocation plan generation unit generates the allocation plan, a transition of a re-planning index indicating a degree of recommendation for re-planning of the allocation plan is displayed on a display device. The power operation management system according to claim 1 .
10. After the allocation plan generation unit generates the allocation plan, a display device is displayed showing the transition of predetermined planned values and actual values in the facility group. The power operation management system according to claim 1 .
11. After the allocation plan generation unit generates the allocation plan, a screen showing the hierarchical inclusion relationship is displayed on a display device, and the planned values and actual values for each of the facility groups are also displayed on the screen. The power operation management system according to claim 1 .
12. a service-specific resource allocation step of allocating electrical capacities of a plurality of facilities in the power system to a plurality of types of power services to generate a service-specific plan; an integrated plan generation step of integrating the service-specific plans to generate an integrated plan; an allocation plan generating step of generating an allocation plan by each of a plurality of allocation plan generating units associated one-to-one with a plurality of equipment groups in a hierarchical inclusion relationship, with a predetermined group of the plurality of equipment being at the lowest level; a plan execution step of outputting a control command to a predetermined piece of equipment based on the allocation plan of the equipment group in the lowest layer, Among the plurality of allocation plan generation units, one corresponding to the top-level equipment group generates or updates allocation plans for the plurality of equipment groups positioned immediately below that equipment group based on the integrated plan; A power operations management method in which one of the multiple allocation plan generation units corresponding to an equipment group at a level lower than the top level generates or updates allocation plans for multiple equipment groups positioned immediately below the equipment group based on an allocation plan allocated from the unit immediately above the equipment group.
Citation Information
Patent Citations
Energy management device and method, energy management system, and operation planning method for energy management system
JP6893980B2