KR102601205B1 - Method and system for trading energy based on the dynamic price and demand of renewable energy - Google Patents

Abstract

An energy trading method and system based on the dynamic price and demand of renewable energy is disclosed. The energy trading method includes receiving demand information including energy demand required by the energy consumer from an energy consumer; determining the amount of power generation of the energy provider required to meet the demand of the energy consumer based on the demand information; determining a power generation price that the energy consumer must pay to purchase energy according to the amount of power generation; and determining an energy transaction with the energy consumer according to the power generation price, wherein the energy provider may supply energy to the energy consumer according to the energy transaction.

Description

Energy trading method and system based on dynamic price and demand of renewable energy {METHOD AND SYSTEM FOR TRADING ENERGY BASED ON THE DYNAMIC PRICE AND DEMAND OF RENEWABLE ENERGY}

The present invention relates to energy trading and systems, and more specifically to methods and systems for trading energy according to the dynamic price and demand of renewable energy.

The existing main grid uses power retailers to provide energy at a fixed energy price for requested energy based on a single distributed resource, so efficient use of energy consumption was limited.

Microgrids have increased with the spread of new and renewable energy, but the conventional microgrid was a system that supplied energy to demand resources and loads in response to energy requests on a daily basis. Therefore, from the energy consumer's perspective, there was a problem in that the requested energy continued to be supplied in a situation where energy was insufficient even when surplus energy was generated. Additionally, there was a problem in that energy requested when energy was expensive was supplied at the same price even when energy was low. Additionally, there was a limitation that there was no way for energy consumers to make a profit by selling surplus energy.

Therefore, there is a need for an energy trading method that dynamically determines and trades the price of energy according to demand resources and supply and sells surplus energy of energy consumers.

The present invention is a method and system for delivering optimal energy that can be used by demand resources and loads through distributed energy resources in an environment where energy generation is uncertain depending on the environment, and selling surplus energy generated from demand resources to the market at an optimal cost. provides.

An energy trading method according to an embodiment of the present invention includes receiving demand information including energy demand required by the energy consumer from an energy consumer; determining the amount of power generation of the energy provider required to meet the demand of the energy consumer based on the demand information; determining a power generation price that the energy consumer must pay to purchase energy according to the amount of power generation; and determining an energy transaction with the energy consumer according to the power generation price, wherein the energy provider may supply energy to the energy consumer according to the energy transaction.

The power generation price of the energy trading method according to an embodiment of the present invention may be the energy production cost required to increase the energy produced by the energy provider according to the power generation amount.

The energy trading method according to an embodiment of the present invention further includes transmitting the amount of power generation to the energy provider, wherein the energy provider increases the energy produced by the energy provider according to the amount of power generation, thereby increasing the amount of power generated by the energy provider. Energy can be supplied to energy consumers.

The step of determining the energy transaction in the energy transaction method according to an embodiment of the present invention includes transmitting the power generation price to the energy consumer; And it may include receiving a demand amount adjusted in consideration of the power generation price and transaction decision information regarding the adjusted demand amount from the energy consumer.

The energy trading method according to an embodiment of the present invention further includes transmitting the adjusted demand amount to the energy provider, wherein the energy provider generates energy according to the adjusted demand amount. Energy can be supplied to the energy consumer by increasing .

The energy trading method according to an embodiment of the present invention includes the steps of receiving REC (Renewable Energy Certificate) information containing the amount of surplus energy generated by the energy consumer when the amount of power generation exceeds the required amount from the energy consumer; determining the amount of power generation that can be reduced by an energy provider when the surplus energy is supplied based on the REC information; determining a REC price obtained by the energy consumer by selling the surplus energy according to the amount of power generation; and determining an energy transaction with the energy consumer according to the REC price, wherein the energy provider may receive the surplus energy from the energy consumer according to the energy transaction.

The REC price of the energy trading method according to an embodiment of the present invention may be the energy production cost saved when the energy provider reduces the energy produced by the energy provider according to the power generation amount.

The energy trading method according to an embodiment of the present invention further includes transmitting the amount of power generation to the energy provider, wherein the energy provider reduces the energy produced by the energy provider according to the amount of power generation. , surplus energy can be supplied from the energy consumer.

An energy trading method according to an embodiment of the present invention includes the steps of checking whether the energy demand of an energy consumer exceeds the energy generation amount of the energy consumer; When the energy demand of the energy consumer exceeds the energy generation amount of the energy consumer, transmitting demand information including the energy demand required by the energy consumer to an energy broker; And it may include the step of the energy consumer receiving energy corresponding to the demand information from an energy provider.

The energy trading method according to an embodiment of the present invention includes the steps of transmitting REC information containing surplus energy of the energy consumer to an energy broker when the energy demand of the energy consumer is less than the energy generation amount of the energy consumer; And it may further include the step of the energy consumer supplying energy corresponding to the REC information to the energy provider.

An energy trading system according to an embodiment of the present invention includes an energy provider that generates energy; And receiving demand information including the energy demand required by the energy consumer from the energy consumer, determining the amount of power generation of the energy provider required to meet the demand of the energy consumer based on the demand information, and adjusting the amount of power generation to the amount of power. An energy broker determines a power generation price that the energy consumer must pay to purchase energy, and determines an energy transaction with the energy consumer according to the power generation price, and the energy provider determines an energy transaction according to the energy transaction. Energy can be supplied to the energy consumer.

The power generation price of the energy trading system according to an embodiment of the present invention may be the energy production cost required to increase the energy produced by the energy provider according to the power generation amount.

The energy broker of the energy trading system according to an embodiment of the present invention transmits the power generation to the energy provider, and the energy provider increases the energy produced by the energy provider according to the power generation to the energy provider. Energy can be supplied to energy consumers.

The energy broker of the energy trading system according to an embodiment of the present invention transmits the power generation price to the energy consumer, and the energy consumer adjusts the demand quantity in consideration of the power generation price, the adjusted demand quantity, and the adjustment. Transaction decision information regarding the demand quantity can be transmitted to the energy broker.

The energy consumer of the energy trading system according to an embodiment of the present invention transmits the adjusted demand to the energy provider, and the energy provider provides energy that the energy provider produces according to the adjusted demand. Energy can be supplied to the energy consumer by increasing .

An energy trading system according to an embodiment of the present invention includes an energy provider that generates energy; And REC information containing the amount of surplus energy generated when the power generation exceeds the required amount is received from the energy consumer, and when the surplus energy is supplied based on the REC information, the energy provider determines the amount of power generation that can be reduced. and an energy broker that determines a REC price obtained by selling the surplus energy by the energy consumer according to the amount of power generation, and determines an energy transaction with the energy consumer according to the REC price. The energy provider includes, The surplus energy can be supplied from the energy consumer according to the energy transaction.

The REC price of the energy trading system according to an embodiment of the present invention may be a reduced energy production cost when the energy provider reduces the energy produced according to the power generation amount.

The energy broker of the energy trading system according to an embodiment of the present invention transmits the amount of power generation to the energy provider, and the energy provider reduces the energy produced by the energy provider according to the amount of power generation. , surplus energy can be supplied from the energy consumer.

According to one embodiment of the present invention, in an environment where energy generation is uncertain depending on the environment, distributed energy resources deliver optimal energy that can be used by demand resources and loads, and market surplus energy generated from demand resources at an optimal cost. By selling to , it can provide efficient use of energy and improved utility.

1 is a diagram illustrating an energy trading system according to an embodiment of the present invention.
Figure 2 is a flowchart showing an energy trading method performed by an energy consumer of an energy trading system according to an embodiment of the present invention.
Figure 3 is a diagram illustrating an energy trading method according to the first embodiment of the present invention.
Figure 4 is a diagram illustrating an energy trading method according to a second embodiment of the present invention.
Figure 5 is an example of an energy consumer's utility relationship with the energy trading method according to an embodiment of the present invention.

Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, various changes can be made to the embodiments, so the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents, or substitutes for the embodiments are included in the scope of rights.

The terms used in the examples are for descriptive purposes only and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

In addition, when describing with reference to the accompanying drawings, identical components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiments, if it is determined that detailed descriptions of related known technologies may unnecessarily obscure the gist of the embodiments, the detailed descriptions are omitted.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

1 is a diagram illustrating an energy trading system according to an embodiment of the present invention.

The energy trading system is an energy distribution management system for energy trading according to the dynamic price and demand of new and renewable energy based on time slots in an uncertain environment to optimize consumer interests based on energy request messages. As shown in 1, it may include an energy provider 110, an energy broker 120, and an energy consumer 130.

Energy Provider 110 may produce energy 101 from available distributed energy resources (P _m,k ) and register it with the energy broker 120. At this time, m may be determined according to the number of energy providers 101, and k may be determined according to the number of distributed energy resources.

Additionally, the energy provider 110 may provide the energy broker 120 with a production unit price, which is the energy production cost required to produce energy. For example, the energy provider 110 may include an energy provider 111 that generates renewable energy, such as solar power generation, and an energy provider 112 that generates energy by consuming resources, such as diesel power generation. there is. At this time, the energy provider 111 may operate as an energy consumer 130 when the amount of power generation decreases depending on time or environment. Additionally, the energy production cost may be the cost for generating a certain unit of energy in an energy generating device that generates energy by consuming resources, such as diesel power generation.

The energy broker 120 can receive energy produced by distributed energy resources and the production unit price from the energy provider 110. In addition, the energy broker 120 receives demand information including the energy demand required by the energy consumer 130 from the energy consumer 130, or the amount of surplus energy generated by the energy consumer 130 when the amount of power generation exceeds the required amount. You can receive REC (Renewable Energy Certificate) information. At this time, the energy broker 120 can manage optimal energy distribution according to demand information or REC information.

Energy Consumer 130 The energy consumer 130 may be a user who owns a generator with different power generation amount depending on time or environment, such as solar power generation. Additionally, the energy consumer 130, which regularly generates surplus energy, may operate as an energy provider during the period when surplus energy is generated.

Among the energy consumers 130, the energy consumer 131 whose power generation amount is less than its requirements may request the use of distributed energy resources by transmitting demand information to the energy broker 120. At this time, the energy broker 120 may evaluate light demand information received from the energy consumer 130. In addition, the energy broker 120 profiles demand information using history information, and analyzes the history information to generate energy for each energy request message according to demand resources and load for each energy consumer 130 requesting energy. The amount of distribution can be calculated. Additionally, the energy broker 120 may provide the power generation price 105 to the energy consumer 130. In addition, when the energy broker 120 determines energy trading according to the power generation price 105, the energy broker 120 can supply the energy generated by the energy provider 110 to the energy consumer 130 (140). there is.

In addition, among the energy consumers 130, the energy consumer 132, which generates surplus energy because its power generation is greater than its required amount, may transmit REC information 102 to the energy broker 120 and sell the surplus energy back. At this time, the energy broker 120 purchases surplus energy according to the REC information 102 and transmits a message 103 to reduce power generation according to the purchased surplus energy to the energy provider 112 that requires costs for energy production. You can.

Additionally, the energy broker 120 may list up available distributed energy resources and the optimal trading energy distribution amount so that the surplus energy of the energy consumer 130 can be traded. At this time, the energy broker 120 may provide incentives based on energy provision contribution to the energy provider 110 and provide benefits for surplus energy transactions to the energy consumer 130.

Additionally, the energy broker 120 can maximize the sum of the utilities of all energy consumers 130 under the concept of benefit to manage energy distribution. At this time, the energy broker 120 does not allocate more energy than the energy requested by the energy consumer 120, and the sum of all allocated energy cannot exceed the remaining energy from all energy providers 110. For example, the energy broker 120 can derive optimal benefits by improving utility according to demand resources and load for all energy consumers 130 according to Equation 1.

At this time, is the utility of energy consumer _i,k , may be the sum of utilities. also, is a Nonnegative Real-Valued Function, has the characteristics of a Strictly increasing Function, It may have the characteristics of a concave function. And, the Quadratic Utility Function can generally be used to measure User's Utility using the characteristics of demand resources.

Therefore, the energy broker 120 can use Equation 2 as a utility function for energy consumers _i,k .

K={1,2, ??,N} can be defined as the time slot index set (Time Index Set) of all energy consumers 130. At this time, is the amount of energy consumed in the kth time slot of the ith energy consumer 130, may be the preference of the ith energy consumer 130. also, is the maximum charging amount of the ESS in the kth time slot of the ith energy consumer 130, may be the amount of energy traded by the energy consumer 130 to the energy broker 120 in the kth time slot of the i th energy consumer 130. At this time, ESS (Energy Storage System) may be a system that charges power generated by the generator of the energy consumer 130.

Therefore, the energy distribution policy for energy trading according to the dynamic price and demand of time slot-based renewable energy can be expressed as Equation 3.

At this time, is the energy charging and discharging cost of the ESS, may be the PV operating cost. also, is the energy production cost of the diesel generator, May be the transaction benefit of the energy provider 110 or the energy consumer 130 according to the transaction of renewable energy.

and, is the amount of energy charged and discharged from the energy broker 120 in the kth time slot of the ith energy consumer 130, May be the amount of renewable energy traded with the energy broker 120 in the kth time slot of the ith energy consumer 130.

also, is R unit renewable energy, is the energy produced by the energy provider 110 in the kth time slot.

In addition, the constraints are that the demand of the energy consumer 130, the charging and discharging amount of the ESS, and the amount of PV (Photovoltaic) usage must be less than the energy production of the supplier, and the production of PV must be equal to the total amount of new and renewable energy.

In other words, since the objective function is a strictly concave function and the constraints are linear, Equation 4 can be given under Lagrangian and duality conditions. .

At this time, since the objective function and the inequality constraint function are differentiable and convex, and the equality constraint function is affine, an optimal solution can be obtained. there is.

Therefore, the energy broker 120 uses equation 5: The optimal energy trading policy of can be used.

The energy trading system delivers the optimal energy that can be used by demand resources and loads through distributed energy resources in an environment where energy generation is uncertain depending on the environment, and sells surplus energy generated from demand resources to the market at the optimal cost. It can provide efficient use and improved utility.

Figure 2 is a flowchart showing an energy trading method performed by an energy consumer of an energy trading system according to an embodiment of the present invention.

In step 210, the energy consumer 130 may check whether the energy demand of the energy consumer 130 exceeds the energy generation amount of the energy consumer 130. And, when the energy demand exceeds the energy generation amount, the energy consumer 130 may perform step 220. Additionally, when the energy demand is less than the energy generation amount, the energy consumer 130 may perform step 250.

In step 220, the energy consumer 130 may transmit demand information including the energy demand required by the energy consumer 130 to the energy broker 120.

In step 230, the energy consumer 130 may receive a power generation price corresponding to the demand information transmitted in step 220. Additionally, the energy consumer 130 may determine energy trading according to the received power generation price. At this time, the energy consumer 130 may adjust the demand amount of the energy consumer 130 according to the received power generation price and determine energy trading according to the adjusted demand amount. At this time, the energy consumer 130 may transmit the demand adjusted in consideration of the power generation price and transaction decision information regarding the adjusted demand to the energy broker 120.

In step 240, the energy consumer 130 may supply energy corresponding to demand information from the energy provider 110 according to the energy transaction determined in step 230.

In step 250, the energy consumer 130 may transmit REC information containing surplus energy of the energy consumer 130 to the energy broker 120.

In step 260, the energy consumer 130 may receive the REC price corresponding to the REC information transmitted in step 250. Additionally, the energy consumer 130 may determine energy trading according to the received REC price.

In step 270, the energy consumer 130 may supply energy corresponding to the REC information to the energy provider 110 for the energy transaction determined in step 230.

In other words, the energy consumer 130 is unable to generate solar power, such as in the middle of the night, but requires and consumes energy during non-peak hours, such as factories, when power consumption is low, and is capable of generating solar power at home. Although surplus energy is generated due to low consumption, gains can be optimized by trading energy during peak hours when energy consumption by power consumers, such as factories, is high.

Figure 3 is a diagram illustrating an energy trading method according to the first embodiment of the present invention.

In step 310, the energy broker 120 may receive demand information including energy demand required by the energy consumer 130 from the energy consumer 130.

In step 320, the energy broker 120 receives from the energy provider 110 the amount of energy of the distributed energy resource (P _m,k ) produced by the energy provider 110 and the energy production cost required to produce the energy. You can receive power generation information including phosphorus production cost.

In step 330, the energy broker 120 may determine the amount of power generation of the energy provider 110 required to meet the demand of the energy consumer 130 based on the demand information.

In step 340, the energy broker 120 determines the power generation amount determined in step 330 and the production price that the energy consumer 130 must pay to purchase energy according to the production price included in the power generation information received in step 320. You can decide the price. At this time, the power generation price may be the energy production cost required to increase the energy produced by the energy provider 1110 according to the power generation amount determined in step 330.

Additionally, the energy broker 120 may calculate the price when supply and demand are met according to the amount of power generation, and determine the calculated price as the market price, which is the system marginal price (SMP). For example, market prices may be determined on an hourly basis.

In step 350, the energy broker 120 may transmit the power generation price or market price determined in step 340 to the energy consumer 130.

In step 355, the energy consumer 130 may determine energy trading according to the power generation price received in step 350 or the market price. If a decision is made to purchase energy, the energy consumer 130 may transmit transaction decision information to the energy broker 120 in step 360 .

Additionally, the energy consumer 130 may adjust the demand amount of the energy consumer 130 according to the power generation price or market price received in step 350 and determine energy trading according to the adjusted demand amount. At this time, in step 360, the energy consumer 130 may transmit the demand adjusted in consideration of the power generation price and transaction decision information regarding the adjusted demand to the energy broker 120.

In step 365, the energy broker 120 may transmit the amount of power generation to the energy provider 110. Additionally, when the adjusted demand quantity is received in step 360, the energy broker 120 may transmit the adjusted demand quantity to the energy provider 110. At this time, the energy broker 120 may transmit the power generation or adjusted demand amount to the energy provider 112, which can produce additional energy using cost among the energy providers 110.

In step 370, the energy provider 110 may increase the energy produced by the energy provider 110 according to the power generation received in step 365 or the adjusted demand amount.

In step 380, the energy provider 110 may supply the energy increased in step 370 to the energy consumer 130.

Figure 4 is a diagram illustrating an energy trading method according to a second embodiment of the present invention.

In step 410, the energy broker 120 receives from the energy provider 110 the amount of energy of the distributed energy resource (P _m,k ) being produced by the energy provider 110 and the energy production cost required to produce the energy. You can receive power generation information including phosphorus production cost.

In step 420, the energy broker 120 may receive REC information including the amount of surplus energy generated by the energy consumer when the amount of power generation exceeds the required amount from the energy consumer.

In step 430, the energy broker 120 may determine the amount of power generation that can be reduced by the energy provider 110 when surplus energy is supplied based on REC information.

In step 440, if the energy consumer 130 sells surplus energy according to the power generation amount determined in step 430 and the production price included in the power generation information received in step 320, the energy consumer 130 (130) can determine the REC price that can be obtained. At this time, the REC price may be the energy production cost saved when the energy provider 110 reduces the energy produced according to the power generation amount determined in step 430.

In step 450, the energy broker 120 may transmit the REC price determined in step 440 to the energy consumer 130.

In step 455, the energy consumer 130 may determine energy trading according to the REC price received in step 450. If it is decided to sell the surplus energy, the energy consumer 130 may transmit transaction decision information to the energy broker 120 in step 460.

In step 465, the energy broker 120 may transmit the power generation amount determined in step 430 to the energy provider 110. At this time, the energy broker 120 may transmit the amount of power generation to the energy provider 112 that uses costs to produce energy among the energy providers 110.

In step 470, the energy provider 110 may reduce the energy produced by the energy provider 112 according to the amount of power generation received in step 465.

In step 480, the energy provider 110 may receive surplus energy from the energy consumer 130 according to an energy transaction.

Figure 5 is an example of an energy consumer's utility relationship with the energy trading method according to an embodiment of the present invention.

The energy trading system of the present invention delivers optimal energy that can be used by demand resources and loads from distributed energy resources in an environment where energy generation is uncertain depending on the environment, and sells surplus energy generated from demand resources to the market at an optimal cost. This can provide efficient use of energy and improved utility.

In particular, as shown in FIG. 5, when energy is traded based on renewable energy dynamic price and demand (DSDB), the utility of the energy consumer 130 is lower than when energy is traded based on fixed price and demand (FSFB). The improvement can result in improved energy use efficiency and satisfaction from the perspective of the energy consumer 130 who possesses demand resources.

Meanwhile, the energy trading system or energy trading method according to the present invention is written as a program that can be executed on a computer and can be implemented in various recording media such as magnetic storage media, optical reading media, and digital storage media.

Implementations of the various techniques described herein may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or combinations thereof. Implementations may include a computer program product, e.g., a machine-readable storage device, for processing by or controlling the operation of a data processing device, e.g., a programmable processor, a computer, or multiple computers. It can be implemented as a tangibly embodied computer program in an available medium). Computer programs, such as the computer program(s) described above, may be written in any form of programming language, including compiled or interpreted languages, and may be written as a stand-alone program or as a module, component, subroutine, or part of a computing environment. It can be deployed in any form, including as other units suitable for use. The computer program may be deployed for processing on one computer or multiple computers at one site or distributed across multiple sites and interconnected by a communications network.

Processors suitable for processing computer programs include, by way of example, both general-purpose and special-purpose microprocessors, and any one or more processors of any type of digital computer. Typically, a processor will receive instructions and data from read-only memory or random access memory, or both. Elements of a computer may include at least one processor that executes instructions and one or more memory devices that store instructions and data. Generally, a computer may include one or more mass storage devices that store data, such as magnetic, magneto-optical disks, or optical disks, receive data from, transmit data to, or both. It can also be combined to make . Information carriers suitable for embodying computer program instructions and data include, for example, semiconductor memory devices, magnetic media such as hard disks, floppy disks, and magnetic tapes, and Compact Disk Read Only Memory (CD-ROM). ), optical media such as DVD (Digital Video Disk), magneto-optical media such as Floptical Disk, ROM (Read Only Memory), RAM , Random Access Memory), flash memory, EPROM (Erasable Programmable ROM), and EEPROM (Electrically Erasable Programmable ROM). The processor and memory may be supplemented by or included in special purpose logic circuitry.

Additionally, computer-readable media may be any available media that can be accessed by a computer, and may include both computer storage media.

Although this specification contains details of numerous specific implementations, these should not be construed as limitations on the scope of any invention or what may be claimed, but rather as descriptions of features that may be unique to particular embodiments of particular inventions. It must be understood. Certain features described herein in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination. Furthermore, although features may be described as operating in a particular combination and initially claimed as such, one or more features from a claimed combination may in some cases be excluded from that combination, and the claimed combination may be a sub-combination. It can be changed to a variant of a sub-combination.

Likewise, although operations are depicted in the drawings in a particular order, this should not be construed as requiring that those operations be performed in the specific order or sequential order shown or that all of the depicted operations must be performed to obtain desirable results. In certain cases, multitasking and parallel processing may be advantageous. Additionally, the separation of various device components in the above-described embodiments should not be construed as requiring such separation in all embodiments, and the described program components and devices may generally be integrated together into a single software product or packaged into multiple software products. You must understand that it is possible.

Meanwhile, the embodiments of the present invention disclosed in the specification and drawings are merely provided as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art that in addition to the embodiments disclosed herein, other modifications based on the technical idea of the present invention can be implemented.

110: Energy Provider
120: Energy Broker
130: Energy Consumer

Claims (14)

In the energy trading method performed by the processor of the energy broker,
Receiving demand information including energy demand required by the energy consumer from an energy consumer;
determining the amount of power generation of the energy provider required to meet the demand of the energy consumer based on the demand information;
determining a power generation price that the energy consumer must pay to purchase energy according to the amount of power generation; and
Determining an energy transaction between the energy consumer and the energy provider according to the power generation price
Including,
The step of deciding on the energy transaction is,
Under the concept of benefit, determine energy transactions between the energy consumers and energy providers so that the sum of the utilities of the N energy consumers is maximized,
The utility of the N energy consumers is,
The amount of energy consumed in the kth time slot of the ith energy consumer, the preference of the ith energy consumer, the maximum charging amount of the ESS in the kth time slot of the ith energy consumer, and the kth timeslot of the ith energy consumer. It is determined by summing the utility of the ith energy consumer, which is determined based on the amount of energy traded with the energy provider.
The energy provider is,
An energy transaction method that supplies energy to the energy consumer according to the energy transaction. According to paragraph 1,
The power generation price is,
An energy trading method that is the energy production cost required to increase the energy produced by the energy provider according to the amount of power generation. According to paragraph 1,
Transmitting the power generation to the energy provider
It further includes,
The energy provider is,
An energy trading method that supplies energy to the energy consumer by increasing the energy produced by the energy provider according to the amount of power generation. According to paragraph 1,
The step of deciding on the energy transaction is,
transmitting the power generation price to the energy consumer;
Receiving from the energy consumer a demand adjusted in consideration of the power generation price and transaction decision information regarding the adjusted demand.
Energy trading method including. According to paragraph 4,
Transmitting the adjusted demand amount to the energy provider
It further includes,
The energy provider is,
An energy trading method that supplies energy to the energy consumer by increasing the energy produced by the energy provider according to the adjusted demand. In the energy trading method performed by the processor of the energy broker,
Receiving REC (Renewable Energy Certificate) information containing the amount of surplus energy generated by the energy consumer when the power generation exceeds the required amount from the energy consumer;
determining the amount of power generation that can be reduced by an energy provider when the surplus energy is supplied based on the REC information;
determining a REC price obtained by the energy consumer by selling the surplus energy according to the amount of power generation; and
Determining an energy transaction between the energy consumer and the energy provider according to the REC price
Including,
The step of deciding on the energy transaction is,
Under the concept of benefit, determine energy transactions between the energy consumers and energy providers so that the sum of the utilities of the N energy consumers is maximized,
The utility of the N energy consumers is,
The amount of energy consumed in the kth time slot of the ith energy consumer, the preference of the ith energy consumer, the maximum charging amount of the ESS in the kth time slot of the ith energy consumer, and the kth timeslot of the ith energy consumer. It is determined by summing the utility of the ith energy consumer, which is determined based on the amount of energy traded with the energy provider.
The energy provider is,
An energy trading method in which the surplus energy is supplied from the energy consumer according to the energy trading. According to clause 6,
The REC price above is,
An energy trading method in which energy production costs are reduced when the energy provider reduces the energy produced according to the power generation amount. According to clause 6,
Transmitting the power generation to the energy provider
It further includes,
The energy provider is,
An energy trading method in which surplus energy is supplied from the energy consumer after reducing the energy produced by the energy provider according to the amount of power generation. A computer-readable recording medium on which a program for executing the method of any one of claims 1 to 8 is recorded. Energy provider that generates energy; and
Receiving demand information including energy demand required by the energy consumer from an energy consumer, and determining the amount of power generation of the energy provider required to meet the demand of the energy consumer based on the demand information,
An energy broker who determines the power generation price that the energy consumer must pay to purchase energy according to the amount of power generation, and determines energy transactions between the energy consumer and the energy provider according to the power generation price.
Including,
The energy broker is,
Under the concept of benefit, determine energy transactions between the energy consumers and energy providers so that the sum of the utilities of the N energy consumers is maximized,
The utility of the N energy consumers is,
The amount of energy consumed in the kth time slot of the ith energy consumer, the preference of the ith energy consumer, the maximum charging amount of the ESS in the kth time slot of the ith energy consumer, and the kth timeslot of the ith energy consumer. It is determined by summing the utility of the ith energy consumer, which is determined based on the amount of energy traded with the energy provider.
The energy provider is,
An energy trading system that supplies energy to the energy consumer according to the energy transaction. According to clause 10,
The power generation price is,
An energy trading system that is the energy production cost required to increase the energy produced by the energy provider according to the amount of power generation. According to clause 10,
The energy broker is,
Transmitting the power generation to the energy provider,
The energy provider is,
An energy trading system that supplies energy to the energy consumer by increasing the energy produced by the energy provider according to the amount of power generation. According to clause 10,
The energy broker is,
Transmitting the power generation price to the energy consumer,
The energy consumer is,
An energy trading system that adjusts demand in consideration of the power generation price and transmits the adjusted demand and transaction decision information regarding the adjusted demand to the energy broker. According to clause 13,
The energy consumer is,
Transmitting the adjusted demand to the energy provider,
The energy provider is,
An energy trading system that supplies energy to the energy consumer by increasing the energy produced by the energy provider according to the adjusted demand.

Images