Electricity trading intermediation method

Abstract

To reduce loss due to transmission of power.SOLUTION: A power trade mediation method is performed via a server which mediates a trade of power between a power supplier and a consumer. The power trade mediation method includes: the steps (for example, a step S113, a step S114) of identifying, by the server, a transmission path for transmitting the power to be traded from any of power transmission facilities of the supplier desired by the consumer, to a power receiving facility of the consumer; the steps (for example, a step S115, a step S116) of calculating power loss due to transformation at any of transforming facilities, in the identified transmission path, or power loss due to frequency conversion at any of frequency conversion facilities; and the steps (for example, from a step S121 to a step S124) of determining incentive so that the incentive given to the consumer when the loss is small compared with when the calculated loss is large is prevented from decreasing.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] This disclosure relates to a method for brokering electricity trading, and more particularly, to a method for brokering electricity trading by a server that brokers electricity trading between electricity suppliers and consumers.

Background Art

[0002] Conventionally, when using the power transmission and distribution network of a power transmission company between a consumer and a power purchase area, there is a method of brokering electricity trading in which the consumer can purchase electricity by designating a power purchase area by paying a transmission fee to the power transmission company. In this case, when the distance between the consumer and the power purchase area becomes long, a large amount of transmission fees will be generated. For this reason, there has been a method of brokering electricity trading that gives an incentive to the consumer according to the distance between the consumer and the power purchase area (see, for example, Patent Document 1). This gives an incentive to purchase electricity from a distant power purchase area.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the brokering method of Patent Document 1, losses associated with power transmission such as power transmission losses due to a long power transmission distance are not considered.

[0005] This disclosure has been made to solve such problems, and an object thereof is to provide a method for brokering electricity trading that can reduce losses due to power transmission.

Means for Solving the Problems

[0006] The power trading mediation method according to this disclosure is a power trading mediation method by a server that mediates the power trading between a power supplier and a power consumer, and the server includes: a step of identifying a power transmission path for transmitting the power to be traded from the power transmission facility of the supplier desired by the consumer to the power reception facility of the consumer; a step of calculating the power loss due to voltage transformation in a substation facility or the power loss due to frequency conversion in a frequency conversion facility in the identified power transmission path; and a step of determining an incentive so that the incentive given to the consumer does not decrease when the calculated loss is less compared to the case where the loss is large.

[0007] According to such a configuration, the incentive is determined so that the incentive given to the consumer does not decrease when the power loss due to voltage transformation in a substation facility or the power loss due to frequency conversion in a frequency conversion facility in the power transmission path for transmitting the power to be traded from the power transmission facility of the supplier desired by the consumer to the power reception facility of the consumer is less compared to the case where the loss is large. For this reason, the consumer desires the power transmission facility of the supplier with less power loss so that the incentive increases. As a result, it is possible to provide a power trading mediation method capable of reducing the loss due to power transmission.

Effect of the Invention

[0008] According to this disclosure, it is possible to provide a power trading mediation method capable of reducing the loss due to power transmission.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and their descriptions will not be repeated.

[0011] FIG. 1 is a diagram showing an outline of the configuration of a power trading mediation system 1 according to an embodiment of this disclosure. Referring to FIG. 1, the power trading mediation system 1 is a system in which a power trading mediator mediates power trading between a plurality of power consumers 20 and a plurality of power suppliers 30A to 30C using a server 100.

[0012] The server 100 of the power trading mediator, the terminal devices 200 of a plurality of consumers 20 (only one is shown in FIG. 1), the loads 270 and the power receiving facilities 280, the power generation facilities 600A and 600B of a plurality of suppliers 30A to 30C, the energy storage facilities 700B, and the power transmission facilities 300A to 300C, the power conversion facilities 400A to 400E, the frequency conversion facilities 500A and 500B, and the communication network 900 are included.

[0013] The electricity trading intermediary server 100 includes a processor 110, a memory 120, an input unit 130, an output unit 140, an auxiliary storage device 160, and a communication unit 190. The processor 110 includes a central processing unit (CPU) and executes a predetermined program to process predetermined data. The memory 120 includes a read-only memory (ROM) that stores the program executed by the processor 110 and predetermined data, and a random access memory (RAM) used as a storage area for executing the program. The input unit 130 includes a device for inputting predetermined information to the electricity trading intermediary server 100, such as a keyboard, mouse, or touch panel. The output unit 140 includes a device for outputting predetermined information from the electricity trading intermediary server 100, such as a display or speaker. The auxiliary storage device 160 is a device that supports the memory 120 and stores a larger amount of data than the memory 120, and is configured, for example, as a hard disk drive (HDD) or removable media drive. The communication unit 190 is an interface for communicating with external devices via a wired and wireless communication network 900 .

[0014] Terminal device 200 of consumer 20 includes processor 210, memory 220, touch panel 230, and communication unit 290. Processor 210, memory 220, and communication unit 290 are similar to processor 110, memory 120, and communication unit 190 of server 100, and therefore redundant description will not be repeated. Touch panel 230 displays predetermined information on a display screen and receives input of a predetermined operation by detecting a user's touch on a predetermined position on the display screen.

[0015] The power generation facilities 600A and 600B are facilities that generate electricity using thermal, nuclear, hydroelectric, wind, solar, or geothermal energy sources. The power storage facility 700B is a facility that has a power storage device (for example, a battery or a pumped-storage power generation system) that stores power. The power transmission facilities 300A to 300C are facilities that adjust power to a predetermined frequency and a predetermined voltage and transmit the power to the outside.

[0016] The power conversion equipment 400A - 400E is equipment that converts electric power from a first predetermined voltage (for example, any one of 500,000V, 275,000V, 154,000V, 77,000V, 33,000V, 6,600V, 200V, 100V) to a second predetermined voltage (for example, any one of 500,000V, 275,000V, 154,000V, 77,000V, 33,000V, 6,600V, 200V, 100V). In the power conversion equipment 400A - 400E, as is conventionally known, power loss occurs along with voltage conversion. The frequency conversion equipment 500A, 500B is equipment that converts electric power from a first predetermined frequency (for example, any one of 50 / 60Hz) to a second predetermined frequency (for example, any one of 50 / 60Hz). In the frequency conversion equipment 500A, 500B, as is conventionally known, power loss occurs along with frequency conversion.

[0017] The power receiving equipment 280 is equipment that receives electric power from the outside, adjusts it to a predetermined frequency and voltage, and supplies it to the load 270, for example, the power receiving equipment of a factory, building, or house. The load 270 is a device that uses electric power (for example, electrical equipment, mechanical equipment).

[0018] For example, when the consumer 20 purchases electric power from the supplier 30A, the power transmission path is the path from the power transmission equipment 300A through the frequency conversion equipment 500A and the power conversion equipment 400A to the power receiving equipment 280. When the consumer purchases electric power from the supplier 30B, the power transmission path is the path from the power transmission equipment 300B through the power conversion equipment 400B and the power conversion equipment 400C to the power receiving equipment 280. When the consumer 20 purchases electric power from the supplier 30C, the power transmission path is the path from the power transmission equipment 300C through the power conversion equipment 400D, the frequency conversion equipment 500B, and the power conversion equipment 400E to the power receiving equipment 280.

[0019] Conventionally, when using the power transmission and distribution network of a power transmission company between a consumer and a supplier, there has been a power trading mediation method in which the consumer can purchase power by designating a supplier by paying a consignment fee to the power transmission company. In this case, when the distance between the consumer and the supplier becomes long, a large amount of consignment fees will be generated. For this reason, there has been a power trading mediation method that gives an incentive to the consumer according to the distance between the consumer's power receiving facility and the supplier's power transmission facility. This gives an incentive to purchase power from a distant supplier. However, in such a mediation method, losses associated with power transmission such as power transmission losses due to a long power transmission distance were not considered.

[0020] Therefore, the power trading mediation method in this disclosure is a power trading mediation method by a server 100 that mediates the power trading between power suppliers 30A to 30C and a consumer 20, and the server 100 determines a power transmission path for transmitting the power to be traded from any of the power transmission facilities 300A to 300C of the suppliers 30A to 30C desired by the consumer 20 to the power receiving facility 280 of the consumer 20. A step of calculating power loss due to voltage conversion in the substation facilities 400A to 400E or power loss due to frequency conversion in the frequency conversion facilities 500A and 500B in the specified power transmission path, and when the calculated loss is small compared to when it is large, determining an incentive so that the incentive given to the consumer does not decrease.

[0021] As a result, the incentive is determined so that the incentive given to the consumer 20 does not decrease when the power loss due to voltage conversion in the substation facilities 400A to 400E or the power loss due to frequency conversion in the frequency conversion facilities 500A and 500B in the power transmission path for transmitting the power to be traded from the power transmission facilities 300A to 300C desired by the consumer 20 to the power receiving facility 280 of the consumer 20 is small compared to when it is large. For this reason, the consumer 20 desires the power transmission facilities 300A to 300C of the suppliers 30A to 30C with less power loss so that the incentive increases. As a result, it is possible to reduce the loss due to power transmission.

[0022] Fig. 2 is a flowchart showing the flow of processing related to the intermediation of power trading executed in this embodiment of the power trading intermediary system 1. Referring to Fig. 2, in the power trading intermediary, the processor 110 of the server 100 controls the communication unit 190 to transmit information including options for the power transmission facilities 300A-300C of the suppliers 30A-30C to the terminal device 200 of the consumer 20 (step S111).

[0023] In the consumer 20, the processor 210 of the terminal device 200 determines whether information including options for the power transmission facilities 300A-300C has been received by the communication unit 290 from the server 100 of the power trading intermediary (step S211). If it is determined that information including options has been received (YES in step S211), the processor 210 controls the touch panel 230 to display the received options for the power transmission facilities 300A-300C (step S212).

[0024] Next, processor 210 determines whether or not a selection of any of the options of power transmission facilities 300A to 300C has been accepted on touch panel 230 (step S213). If it is determined that a selection of an option has been accepted (YES in step S213), processor 210 controls communication unit 290 to transmit information indicating one of the selected power transmission facilities 300A to 300C (step S214).

[0025] In the electricity trading intermediary, the processor 110 of the server 100 determines whether information indicating any one of the selected power transmission facilities 300A-300C has been received by the communication unit 190 from the terminal device 200 of the consumer 20 (step S112). If it is determined that information indicating any one of the selected power transmission facilities 300A-300C has been received (YES in step S112), the processor 110 acquires the location of the power receiving facility 280 of the selected consumer 20 (step S113). The location of the power receiving facility 280 for each consumer 20 may be stored in advance in the auxiliary storage device 160 or the memory 120 of the server 100 and acquired from these, or may be acquired by inquiring to the terminal device 200 of the consumer 20.

[0026] Next, the processor 110 identifies a power transmission route from any one of the selected power transmission facilities 300A to 300C to the power receiving facility 280 from the power transmission network (step S114). The power transmission network is stored in advance in the auxiliary storage device 160 or the memory 120 of the server 100.

[0027] The processor 110 identifies the specifications of the substation equipment 400A-400E, the specifications of the frequency conversion equipment 500A, 500B, and the specifications and lengths of the transmission lines along the identified power transmission route (step S115).Then, the processor 110 calculates the power loss in the equipment and the transmission lines using the specifications of the identified equipment and the specifications and lengths of the transmission lines by a conventionally known method (step S116).

[0028] The processor 110 determines whether the loss in the power transmission line of the power transmission path is less than A (step S121). If it is determined that the loss in power transmission is less than A (YES in step S121), the processor 110 determines whether the loss in power conversion at any one of the power conversion facilities 400A to 400E in the middle of the power transmission path is less than B (step S122). If it is determined that the loss in power conversion is less than B (YES in step S122), the processor 110 determines whether the loss in frequency conversion at any one of the frequency conversion facilities 500A and 500B in the middle of the power transmission path is less than C (step S123).

[0029] If it is determined that the loss in power transmission is not less than A (NO in step S121), if it is determined that the loss in power conversion is not less than B (NO in step S122), or if it is determined that the loss in frequency conversion is not less than C (NO in step S123), the processor 110 returns the process to be executed to the higher-level process that called this process.

[0030] On the other hand, if it is determined that the loss in power transmission is less than A (YES in step S121), the loss in power conversion is less than B (YES in step S122), and the loss in frequency conversion is less than C (YES in step S123), the processor 110 specifies the incentive to be given according to the total loss of the loss in power transmission, the loss in power conversion, and the loss in frequency conversion, and registers the specified incentive in the memory 120 or the auxiliary storage device 160 (step S124). The incentive may be, for example, points that can be used for expenses such as power purchase costs, a reduction in the value of power purchase costs, or a gift. According to this registration, the consumer 20 is given an incentive.

[0031] The processor 110 controls the communication unit 190 to transmit information indicating the given incentive to the terminal device 200 of the consumer 20 (step S125). After step S125, the processor 110 returns the process to be executed to the higher-level process that called this process.

[0032] In the requester 20, the processor 210 of the terminal device 200 determines whether information indicating an incentive has been received by the communication unit 290 (step S215). When it is determined that information indicating an incentive has been received (YES in step S215), the processor 210 causes the touch panel 230 to display the content of the given incentive indicated by the received information (step S216). After step S216, the processor 210 returns the process to be executed to the upper process of the call source of this process.

[0033] [Modification Example] (1) In the above-described embodiment, as shown in steps S113 to S125 of FIG. 2, when the loss in the power conversion at the power conversion facilities 400A to 400E on the power transmission path from any one of the power transmission facilities 300A to 300C of the suppliers 30A to 30C desired by the requester 20 to the power reception facility 280 of the requester 20 is less than a predetermined value B, an incentive corresponding to the loss is given to the requester 20.

[0034] However, it is not limited to this. As long as the incentive is given to the requester 20 so that the incentive given to the requester 20 does not decrease when the loss in the power conversion is less than the case where the loss in the power conversion is large. For example, when the number of power conversions on the power transmission path is less than a predetermined value, that is, less than the case where the number of power conversions is large, an incentive corresponding to the number of power conversions may be given so that the incentive given to the requester 20 does not decrease.

[0035] (2) In the above-described embodiment, as shown in steps S113 to S125 of FIG. 2, when the loss in the frequency conversion at the frequency conversion facilities 500A and 500B on the power transmission path from any one of the power transmission facilities 300A to 300C of the suppliers 30A to 30C desired by the requester 20 to the power reception facility 280 of the requester 20 is less than a predetermined value C, an incentive corresponding to the loss is given to the requester 20.

[0036] However, without being limited to this, the incentive is given to the consumer 20 as long as the incentive given to the consumer 20 does not decrease when compared with the case where there are many losses in frequency conversion. For example, when the number of frequency conversions in the middle of the power transmission path is less than a predetermined value, that is, when it is less compared with the case where the number of frequency conversions is large, an incentive corresponding to the number of frequency conversions may be given so that the incentive given to the consumer 20 does not decrease.

[0037] (3) In the above-described embodiment, as shown in steps S113 to S124 of FIG. 2, when the loss in power transmission in the power transmission line in the middle of the power transmission path from any one of the power transmission facilities 300A to 300C of the suppliers 30A to 30C desired by the consumer 20 to the power reception facility 280 of the consumer 20 is less than a predetermined value A, an incentive corresponding to the loss is given to the consumer 20.

[0038] However, without being limited to this, the incentive is given to the consumer 20 as long as the incentive given to the consumer 20 does not decrease when compared with the case where there are many losses in power transmission. For example, when the power transmission distance in the middle of the power transmission path is less than a predetermined value, that is, when it is short compared with the case where the power transmission distance is long, an incentive corresponding to the power transmission distance may be given so that the incentive given to the consumer 20 does not decrease.

[0039] (4) In the above-described embodiment, as shown in steps S121 to S124 of FIG. 2, when the loss is less than a predetermined value, an incentive is given, and when it is not less than the predetermined value, no incentive is given. However, without being limited to this, the incentive may be given so that the incentive given to the consumer 20 does not decrease when compared with the case where there are many losses. For example, the incentive may be given so as to increase stepwise according to the loss, or the incentive may be given so as to increase monotonically according to the loss.

[0040] (5) In the above-described embodiments, as shown in steps S116 and S121 to S124 of FIG. 2, the loss in the power transmission path includes the loss of power transmission in the power transmission line of the power transmission path, the loss of power conversion in the power conversion equipment 400A to 400E of the power transmission path, and the loss of frequency conversion in the frequency conversion equipment 500A and 500B of the power transmission path. However, the present invention is not limited to this, and the loss in the power transmission path may include at least any one of these power transmission losses, power conversion losses, and frequency conversion losses, or may include other losses in the power transmission path (for example, when passing through a power storage device in the middle of the power transmission path, the loss in power storage).

[0041] (6) The above-described embodiments can be regarded as the disclosure of the power trading brokerage system 1, can be regarded as the disclosure of the server 100 or the terminal device included in the power trading brokerage system 1, and can be regarded as the disclosure of the power trading brokerage method or the power trading brokerage program in these systems or devices.

[0042] [Summary] The power trading brokerage method is a power trading brokerage method by a server 100 that brokers the trading of power between power suppliers 30A to 30C and a consumer 20. The server 100 includes steps of identifying a power transmission path for transmitting the power to be traded from any one of the power transmission facilities 300A to 300C of the suppliers 30A to 30C desired by the consumer 20 to the power receiving facility 280 of the consumer 20 (for example, steps S113 and S114), calculating the power loss due to voltage conversion in any one of the power conversion facilities 400A to 400E or the power loss due to frequency conversion in any one of the frequency conversion facilities 500A and 500B in the identified power transmission path (for example, steps S115 and S116), and determining an incentive so that the incentive given to the consumer does not decrease when compared with the case where the calculated loss is large (for example, steps S121 to S124).

[0043] Accordingly, when the power loss due to voltage transformation in any one of the power transformation facilities 400A to 400E or the power loss due to frequency conversion in any one of the frequency conversion facilities 500A and 500B in the power transmission path for transmitting the power to be traded from any one of the power transmission facilities 300A to 300C of the suppliers 30A to 30C desired by the consumer 20 to the power receiving facility 280 of the consumer 20 is less than that in the case where the power loss is large, the incentive given to the consumer 20 is determined so as not to decrease. For this reason, the consumer 20 desires the power transmission facilities 300A to 300C of the suppliers 30A to 30C with less power loss so that the incentive increases. As a result, the loss due to power transmission can be reduced.

[0044] The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is shown not by the description of the above embodiments but by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims are included.

Explanation of Reference Numerals

[0045] 1 Power trading mediation system, 20 Consumer, 30A to 30C Suppliers, 100 Server, 110, 210 Processors, 120, 220 Memories, 130 Input unit, 140 Output unit, 160 Auxiliary storage device, 190, 290 Communication units, 200 Terminal device, 230 Touch panel, 270 Load, 280 Power receiving facility, 300A to 300C Power transmission facilities, 400A to 400E Power transformation facilities, 500A, 500B Frequency conversion facilities, 600A, 600B Power generation facilities, 700B Energy storage facility, 900 Communication network.

Claims

【Claim 1】 A power trading mediation method by a server that mediates the sale and purchase of electricity between electricity suppliers and consumers, wherein the server includes a storage unit including an auxiliary storage device or a memory, and a processor, the storage unit stores in advance the location of the power receiving equipment for each consumer and a power transmission network capable of identifying a power transmission path from the power transmission equipment of the supplier to the power receiving equipment, the processor transmits information including options for the power transmission equipment of the supplier to the terminal device of the consumer, identifies, from among the power transmission networks stored in the storage unit, a power transmission path for transmitting the power to be traded from the power transmission equipment selected by the consumer indicated by the information received from the terminal device to the power receiving equipment, calculates, using the specifications of the transformer equipment or the frequency conversion equipment, the power loss due to voltage conversion in the transformer equipment or the power loss due to frequency conversion in the frequency conversion equipment in the identified power transmission path, determines an incentive to be given to the consumer when the calculated loss is less than a predetermined value, or determines an incentive to be given to the consumer so as to decrease stepwise or monotonically according to the calculated loss, and registers the determined incentive in the storage unit to be given to the consumer. A power trading mediation method.

Images