KR102335145B1 - Energy supply and trade method between industries using smart energy network technology - Google Patents

Abstract

The present invention provides a step in which (a) the main plant 100 is operated, and information on energy production and energy consumption is generated for each type of energy including hot water, steam, cold heat and compressed air; (b) operation module 300 ) receiving the information generated in step (a) in the step (a) and determining a consumer 200 to which energy is to be supplied by a preset method; and (c) supplying energy from the main plant 100 to the consumer 200 determined in step (b); It relates to an energy trading method comprising a.

Description

Energy supply and trade method between industries using smart energy network technology

The present invention relates to an energy supply and transaction method including an operation module capable of performing an energy transaction between industries, and operating, managing, and paying the same.

Industries produce and consume various types of energy, which vary according to the nature of the industry.

The remaining amount is generated according to the amount of energy produced and consumed by the industry, and it is very important in terms of energy protection and cost to determine whether to release the remaining amount, trade, or additionally produce.

In the conventional energy transaction method, when the supplier supplies energy to the receiver, there is no awareness about determining the order of energy supply, so there is a problem in that the efficient energy transaction and distribution cannot be performed. Only energy trade was possible, and in some cases, there was no awareness that the remaining energy could be traded between recipients flexibly.

For example, Korea Patent Application Laid-Open No. 10-2019-0081654 relates to a distributed resource management method for energy transaction, including a seller who sells a distributed resource, a purchaser, and an energy transaction server, but a transaction is made between buyers. do not support

For example, Korean Patent Application Laid-Open No. 10-2019-0101783 relates to a method and method for trading thermal energy in an industrial complex. Residual energy is traded including suppliers and consumers, but energy trade is not made between consumers.

(Patent Document 1) Korean Patent Publication No. 10-2019-0081654

(Patent Document 2) Korean Patent Publication No. 10-2019-0101783

The present invention has been devised to solve the above problems.

Specifically, this is to efficiently determine the order of energy transaction between the main plant and the consumer.

It can be determined whether or not to start energy trade between the consumers according to the transaction cost incurred because energy trade between the consumers is possible.

In one embodiment of the present invention for solving the above problems, (a) when the main plant 100 is operated, the energy production and energy consumption for each type of energy including hot water, steam, cold heat and compressed air generating information; (b) receiving the information generated in step (a) from the operation module 300, and determining a demand source 200 to which energy is to be supplied by a preset method; and (c) supplying energy from the main plant 100 to the consumer 200 determined in step (b); Including, in the step (b), (b1) the operation module 300 receives information on the energy production and energy consumption of the main plant 100 for each energy type, and Calculating the residual amount, which is a difference value, and confirming each occurrence time (T) of the residual amount; (b2) the operation module 300 determines the type of energy consumed by a plurality of consumers 200, and each consumption Calculating the difference between the energy consumption time Tm (m is a natural number 1 or more and n or less) of each of the plurality of consumers 200 and the generation time T of the remaining amount for each type of energy; (b3) The operation module 300 classifies the plurality of demand sources 200 in the order in which the difference value is small for each energy type, and classifying the demand sources 200 in which the difference value is within a preset range in the same order; (b4) The operation module 300 calculates a large amount of profit by multiplying the unit price and supply amount of each of the consumers 200 classified in the same order in the step (b3) for each energy type and calculating a lot of profits determining the order of energy supply by reclassifying in the order of the demand sources 200; and (b5) determining, by the operation module 300, of the order determined in steps (b3) and (b4), as the demanding source 200 to which energy is to be supplied; It relates to an energy trading method comprising a.

In addition, the step (b) includes: (b6) determining whether the remaining amount of the main plant 100 is equal to or greater than the amount of energy supplied to the consumer 200 determined in step (b4); and (b7) determining, by the operation module 300, to supply energy in the determined order when the remaining amount is equal to or greater than the supply amount; It is preferable to include

In addition, (d) the operation module 300 determines the amount of energy supplied by the consumers 200, respectively, and determines either of its own energy production or energy transaction with other consumers 200 for each demand source 200. step; It is preferable to include

In addition, the step (d) includes: (d1) determining, by the operation module 300, an insufficient amount that is a difference value between the supply amount and the energy required amount of the demand source 200; (d2) the operation module 300 determines the energy consumption time of the demand source 200 among the demand sources 200 where the shortage has occurred in (d1), and the energy consumption time point is within a preset range. ) to determine; And (d3) the operation module 300, among the demand sources 200 determined in step (d2), the production cost according to the shortage of the demand source 200, the production cost according to the production capacity and other demand sources 200 from determining each of the energy transaction costs, which are costs for transacting energy, and determining either of the energy transaction itself and the energy transaction with other consumers 200 for each demand source 200; It is preferable to include

In addition, in the step (d3), (d31) the operation module 300 transacts energy from the other consumer 200 if the energy transaction cost of the consumer 200 is less than the production cost according to the shortage. deciding to accept; And (d32) the operation module 300, when the energy transaction cost of the consumer 200 is greater than the production cost according to the shortfall and is smaller than the production cost according to the production capacity, the demander 200 is determining to produce energy; It is preferable to include

In addition, the (d3) step, (d33) the operation module 300, when the energy transaction cost of the demand source 200 is greater than the production cost according to the production capacity, the production capacity of the demand source 200 Comparing the production cost according to the energy transaction cost of the other consumer 200; and (d34) after step (d33), if the energy cost according to the energy production capacity is lower than the energy transaction cost of the other consumer 200, determining to produce energy as much as the energy production capacity; It is preferable to include

In addition, the step (c) includes: (c1) determining, by the operation module 300, the amount of energy remaining after the remaining amount is supplied to the consumers 200, respectively; and (c2) determining, by the operation module 300, to lower the output of the main plant 100 when the amount of remaining energy is greater than or equal to a preset amount; It is preferable to include

In addition, the step (c) includes: (c1) determining, by the operation module 300, the amount of energy remaining after the remaining amount is supplied to the consumers 200, respectively; and (c2) determining, by the operation module 300, to radiate the excess energy when the amount of the remaining energy is greater than or equal to a preset amount; It is preferable to include

In addition, (e) the operation of the main plant 100 and the customer 200 is terminated, the step of terminating the energy transaction; and (f) storing, by the operation module 300, energy transaction information for steps (a) to (e); It is preferable to include

Energy trading method according to the present invention,

The order of energy supply can be determined by considering the type and timing of energy consumed by the consumer.

The order of energy supply can be determined by considering the amount of energy consumed by the consumer and the transaction unit price.

By trading the remaining energy between the main plant and the customer, it is possible to use energy effectively.

Energy trade between consumers is possible, so it is possible to determine whether or not to trade energy between consumers according to the transaction costs incurred.

In the operation module, information on energy produced and traded in the main plant and the customer can be determined, and whether energy is traded can be determined according to the transaction cost incurred.

Energy traded in the operation module can be managed and controlled in an integrated way.

In addition, this system can be additionally configured in existing industries, and can be introduced to new industries.

1 is a view showing an energy trading method according to the present invention.
2 is a flowchart illustrating an energy trading process according to the present invention.
3 is a view showing an energy transaction time according to the present invention.
4 is a diagram illustrating an energy transaction process between a main plant and a consumer according to the present invention.
5 is a diagram illustrating an energy transaction process between consumers according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Hereinafter, the term “industry” refers to a facility that operates and supplies or consumes the main plant 100 and the consumer 200 .

Hereinafter, the term “energy” refers to energy produced by industries and includes, but is not limited to, compressed air, electricity, cold and hot water, and steam.

Hereinafter, "supply amount" means the amount of energy supplied by the main plant 100 to the consumers 200 , which may vary depending on the main plant 100 and each demand source 200 . For example, the supply amount may vary depending on the contract conditions between the main plant 100 and the demander 200 , and the amount required by the demander 200 , but is not limited thereto.

Hereinafter, the term “required amount” refers to the amount of energy required to operate equipment for each type of energy in the demand source 200 , and may vary depending on each demand source 200 .

Hereinafter, “energy transaction cost” refers to a cost determined by the energy transaction amount and unit price when energy is traded between the consumers 200 , and the cost varies depending on the respective consumers 200 .

1. Configuration according to the present invention

The main plant 100 and the customer 200 according to the present invention are driven under basic operating conditions. The basic operating conditions refer to power-based medium-load and peak-load times.

In this case, the medium load and the maximum load time mean from 9 am to 11 pm on weekdays and Saturdays, and Sundays and holidays may be excluded.

For example, the main plant 100 may generate energy by operating the system at 9 am.

At this time, the basic operating conditions may vary depending on the operation time and transaction time information of the main plant 100 and the demand destination 200 , and the operation module 300 may collect the information and control the basic operating conditions. .

Referring to Fig. 1, a configuration according to the present invention will be described.

The main plant 100 refers to an industry that operates facilities to produce and supply energy such as hot water, steam, cold heat, and compressed air.

The main plant 100 produces energy through maximum operation as much as the maximum capacity it can produce regardless of its own consumption, and the main plant 100 is composed of efficient methods and equipment to maximize energy production and supply efficiency. .

For example, the main plant 100 uses a combined heat and power generator instead of an emergency generator, so that the facility can be used at all times as well as in an emergency, thereby increasing production and supply efficiency. In addition, the main plant 100 may use an engine-driven air compressor instead of an electric compressor to produce compressed air at low cost, and may include other methods and equipment for efficiently producing energy.

The main plant 100 gives priority to self-consumption of the produced energy, and when the consumption is small compared to the production according to the process cycle, the transaction starts with the external demand 200, and each transaction time may be different for each type of energy. have.

For example, if the production of energy is Q and the consumption amount is Y, the main plant 100 trades only energy as much as Q-Y, which is the remaining amount after use.

Measurement equipment capable of measuring the energy produced, supplied, and consumed in the main plant 100 for each type of energy is installed in the main plant 100 , and the measured information is transmitted to the operation module 300 .

The main plant 100 may be connected to the customer 200 to be described later through a network to transact energy, and the network may be installed according to the type of energy to be traded, and is not limited to what is already installed.

The main plant 100 may supply energy to the consumers 200 according to the determined order, which will be described later.

At this time, electricity among the energy produced in the main plant 100 may be consumed only by itself and may not be traded.

The demand source 200 is an industry that receives and consumes energy from the main plant 100 , and the demand source 200 refers to a place where the contract unit price according to the energy transaction is calculated through the contract with the main plant 100 .

Each customer 200 may determine both the type of energy to be transacted with the main plant 100 and the consumption amount, and may change this.

A measuring device capable of measuring the energy produced, supplied, and consumed by the consumer 200 for each type of energy is installed in the consumer 200 .

The demand sources 200 are connected to the main plant 100 through a network, and the number of demand sources 200 may vary depending on the connection and transaction with the main plant 100 .

The consumer 200 receives energy from the main plate 200 to operate the facility, but can produce energy directly to the production facility for the shortfall or the energy production potential, and can trade energy. This will be described later.

The operation module 300 refers to a module capable of controlling the energy produced and traded in the main plant 100 and the consumer 200, monitoring and calculating transaction information, and managing and controlling the integrated energy.

The operation module 300 may receive measurement information from the main plant 100 and the demander 200 and supply it to the demander 200 and the main plant 100 , respectively.

The operation module 300 may determine the order between a plurality of demand sources 200 to which the main plant 100 will supply energy, and may determine whether to generate and trade energy between the demand sources 200 . This will be described later.

In this case, the operation module 300 may mean software in the form of a web page, but is not limited thereto.

2. Description of the system according to the invention

2 to 5, a transaction system according to the present invention will be described.

When the main plant 100 operates, energy trading starts.

The main plant 100 generates information on energy production and energy consumption, respectively, for each type of energy.

The operation module 300 receives information on the energy production and consumption of the main plant 100 , and determines the order among the plurality of consumers 200 to which the main plant 100 supplies energy.

The operation module 300 calculates the residual amount, which is the difference value between the production and consumption amount of energy of the main plant 100 , and confirms the residual amount generation time T, respectively.

The operation module 300 determines the type of energy consumed by the demand source 200 and determines the order between the plurality of demand sources 200 for each energy type. The time difference with the energy consumption time Tm (m is a natural number greater than or equal to 1 and less than or equal to n) of each of the consumers 200 is determined.

The operation module 300 first receives energy from the main plant 100 in the order in which the difference value is small. .

This means that the energy is first supplied from the demand source 200 having the residual amount generation time T and the energy consumption time Tm close, but when the difference is small, first, the energy is sorted in the same order. This is to determine the order by assuming that the urgency of energy supply is similar when the difference is small, and considering the below-mentioned profit together.

3 is a view showing the residual amount generation time (T) and energy consumption time (T1, T2) in the main plant 100, the first demand source, and the second demand source, and the remaining amount for each energy type of the main plant 100 The generation time (T) indicates that the energy consumption time in each demander 200 occurs multiple times.

4 shows that the first and fifth demand sources, the second, third and sixth demand sources, and the seventh demand sources are sorted in the same order, respectively, and a preset value is a<b<c.

In other words, demand sources 200 with a preset value of a or less are classified in the same order, and demand sources 200 of which a preset value is greater than a and less than b are classified in the same order. are classified in the same order, and the order of the demand sources 200 having a preset value of a or less is classified in an order prior to the demand sources 200 having a preset value greater than a and less than or equal to b.

At this time, the preset value is set so that the operation module 300 determines the distribution of the energy consumption time (Tm) of the demanders 200 according to the type of energy, so that the densely populated consumers 200 can be included in the same order. value, for example, may mean within 5%, but is not limited thereto.

At this time, when the difference between the residual amount generation time (T) and the energy consumption time (Tm) becomes a negative number, the operation module 300 may provide priority over a positive number. In addition, when the difference between the residual amount generation time (T) and the energy consumption time (Tm) becomes a negative number, the operation module 300 may preferentially supply energy from a value with a smaller value. For example, in the case of -10 minutes and -20 minutes, energy is supplied preferentially compared to the case where the difference is 10 minutes, and it means that the case of -20 minutes has the highest priority.

The operation module 300 may determine an order within the demand sources 200 classified in the same order.

The operation module 300 is a revenue calculated by multiplying the unit price and consumption amount of each of the demanders 200 in order to determine the order between the consumers 200 classified in the same order .

Figure 4 is a diagram for determining the order between the 2nd, 3rd, 6th demand sources classified in the same order, the profit is large in the order of A>B>C, it shows that the order is classified into 3rd, 6th, and 2nd demand source.

At this time, each unit price of the customer 200 means the contract unit price signed between the main plant 100 and each customer 200 , and the unit price is an amount lower than the unit price of energy consumed by the customer 200 or the unit price of production means

At this time, since the residual amount generation time T occurs a plurality of times for each type of energy in the main plant 100, the above method of determining the energy supply order is repeatedly performed to supply energy to the consumers 200. .

The demand source 200 is determined by any one of energy production or transaction with another demand source 200 with its own facilities.

The demand 200 determines the energy supply amount supplied from the main plant 100, respectively, and determines the energy shortage amount, which is a difference value from the energy required amount.

In this case, the transaction start time between the demanders 200 may be different for each energy type.

At this time, if the consumer 200 does not have a facility for energy production, a transaction with another consumer 200 is determined to fill the energy shortage.

The operation module 300 may check the energy shortage amount of the demanders 200 for each type of energy, and transmit information thereon to each of the demanders 200 .

The operation module 300 determines the energy consumption time of the demand source 200 among the demand sources 200 in which the shortage of the demand source 200 occurs, and determines the demand source 200 in which the energy consumption time is within a preset range.

That is, similar to the case of determining the order of the energy transaction of the main plant 100 described above, the transaction between the consumers 200 is to conduct an energy transaction with the consumer 200 close to the consumption point in consideration of the time of energy consumption.

The operation module 300 checks and compares the production cost according to the shortage amount, the production cost according to the production capacity of the own facility, and the energy transaction cost generated during the transaction with other consumers 200 among the determined demand sources 200, and compares the demand sources 200. Each time it is determined as either one of its own energy production or energy trading with other consumers 200 .

If the energy transaction cost of the consumer 200 is less than the production cost according to the shortage, the operation module 300 determines to receive energy from the other consumer 200 .

The operation module 300 determines that when the commercial energy transaction cost of the consumer 200 is greater than the production cost according to the shortfall and is smaller than the production cost according to the production possible, the demander 200 produces energy by the shortage.

The operation module 300 compares the energy transaction cost of the demand source 200 with the production cost according to the production capacity of the demand source 200 and the energy transaction cost of the other consumer 200 when the energy transaction cost of the demand source 200 is greater than the production cost according to the production capacity. do.

If the energy cost according to the energy production capacity is lower than the energy transaction cost of the other consumers 200, it is determined to produce energy as much as the energy production capacity.

FIG. 5 is a diagram illustrating an energy transaction process between consumers 200 .

For example, assuming that the energy that the first demand source lacks is 50, when the energy that the first demand source's own facilities can produce is 100, whether to supply only the insufficient energy by producing 50 Decide whether to supply energy to When the first demand source produces energy 50, the energy cost is 11 won, and when the energy 100 is produced, the energy cost is 10 won. You can trade in won.

At this time, the energy cost according to the operation of the holding facility of the demander 200 is already stored in the operation module 300 , and the energy cost according to the energy requirement of the other demander 200 is also stored in the operation module 300 .

The operation module 300 determines the production amount of the main plant 100 by determining the amount of energy remaining after the remaining amount is respectively supplied to the consumers 200 .

The operation module 300 determines to lower the production of the main plant 100 when the amount of the remaining energy is greater than or equal to a preset amount.

Alternatively, the operation module 300 determines to radiate (dissipate) the remaining energy to the outside even after the energy of the remaining amount is supplied to the respective consumers 200 in the main plant 100 .

In this case, the amount of heat dissipation may mean an amount of energy measured during a specific period.

In this case, the preset amount may vary according to the type of energy in consideration of the size and equipment of the main plant 100 .

The energy transaction is terminated at the time when the operation is stopped in the main plant 100 or the demand 200 .

The operation module 300 stores energy transaction information between the main plant 100 and the consumer 200 .

Such an energy transaction process is continuously repeated, and the operation module 300 may continuously store energy transaction information therefor.

Accordingly, the main plant 100 and the customer 200 may determine the supply amount, production amount, and energy transaction amount with the information stored in the operation module 300 , and information according to changes in external and internal environments may also be reflected.

In the above, the present specification has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, but these are merely exemplary, and those skilled in the art can make various modifications and equivalent other modifications from the embodiments of the present invention. It will be appreciated that embodiments are possible. Therefore, the protection scope of the present invention should be defined by the claims.

100: main plant
200: demand
300: operation module
T: When the remaining amount occurs
Tm: point of energy consumption

Claims (9)

The main plant 100 is operated, giving priority to self-consumption of the produced energy, and using the remaining amount generated for each process cycle of the main plant 100 , generated by the external demander 200 and the main plant 100 As a method of trading the remaining amount,
(a) operating the main plant 100, generating information on energy production and energy consumption for each type of energy including hot water, steam, cold heat and compressed air;
(b) receiving the information generated in step (a) from the operation module 300, and determining a demand source 200 to which energy is to be supplied by a preset method; and
(c) supplying energy from the main plant 100 to the consumer 200 determined in step (b); including,
Step (b) is,
(b1) The operation module 300 receives information on the energy production and energy consumption of the main plant 100 for each type of energy, calculates the remaining amount that is the difference between the production and the consumption, and identifying each occurrence time (T);
(b2) the operation module 300 determines the type of energy consumed by the plurality of consumers 200, and for each type of energy consumed, each energy consumption time Tm (m) of the plurality of consumers 200 is a natural number equal to or greater than 1 and less than or equal to n) and calculating a difference value between the generation time (T) of the remaining amount;
(b3) The operation module 300 classifies the plurality of demand sources 200 in the order of the smallest difference value for each energy type, and the demand sources 200 having the difference value within a preset range are classified in the same order step;
(b4) The operation module 300 calculates a large amount of profit as a profit calculated by multiplying the supply amount and the unit price of each of the demanders 200, the customers 200 classified in the same order in the step (b3) for each energy type determining the order of energy supply by reclassifying in the order of the demand sources 200; and
(b5) determining, by the operation module 300, of the order determined in steps (b3) and (b4), as the demand source 200 to which energy is to be supplied; containing,
How to trade energy.
According to claim 1,
Step (b) is,
(b6) determining, by the operation module 300, whether the remaining amount of the main plant 100 is equal to or greater than the energy supply amount to the consumer 200 determined in the step (b4); and
(b7) determining, by the operation module 300, to supply energy in the determined order when the remaining amount is equal to or greater than the supply amount; containing,
How to trade energy.
3. The method of any one of claims 1 or 2,
(d) determining, by the operation module 300, the amount of energy supplied by each of the demanders 200, and determining either of its own energy production or energy transaction with other consumers 200 for each of the demanders 200; containing,
How to trade energy.
4. The method of claim 3,
Step (d) is,
(d1) determining, by the operation module 300, a shortage that is a difference value between the supply amount and the energy required amount of the demand source 200;
(d2) the operation module 300 determines the energy consumption time of the demand source 200 among the demand sources 200 where the shortage has occurred in (d1), and the energy consumption time point is within a preset range. ) to determine; and
(d3) the operation module 300, among the demand sources 200 determined in step (d2), the production cost according to the shortage of the demand source 200, the production cost according to the production capacity, and the energy from the other demand sources 200 determining each of the energy transaction costs, which are costs for transacting the , and determining either of the energy transaction itself and the energy transaction with the other consumers 200 for each demand source 200; containing,
How to trade energy.
5. The method of claim 4,
The step (d3) is,
(d31) determining, by the operation module 300, to receive energy from the other consumer 200 if the energy transaction cost of the demand source 200 is less than the production cost according to the shortfall; and
(d32) the operation module 300, when the energy transaction cost of the consumer 200 is greater than the production cost according to the shortfall and is smaller than the production cost according to the production capacity, the demander 200 provides energy by the shortage determining to produce containing,
How to trade energy.
6. The method of claim 5,
The step (d3) is,
(d33) When the energy transaction cost of the demand source 200 is greater than the production cost according to the production capacity, the operation module 300 determines the production cost according to the production capacity of the consumer 200 and the other customer 200 ) compared with the cost of energy transaction; and
(d34) after step (d33), if the energy cost according to the energy production capacity is lower than the energy transaction cost of the other consumer 200, determining to produce energy as much as the energy production capacity; containing,
How to trade energy.
3. The method of claim 2,
Step (c) is,
(c1) determining, by the operation module 300, the amount of energy remaining after the remaining amount is supplied to each of the consumers 200; and
(c2) determining, by the operation module 300, to lower the production amount of the main plant 100 when the amount of remaining energy is greater than or equal to a preset amount; containing,
How to trade energy.
3. The method of claim 2,
Step (c) is,
(c1) determining, by the operation module 300, the amount of energy remaining after the remaining amount is supplied to each of the consumers 200; and
(c2) determining, by the operation module 300, to radiate the excess energy when the amount of the remaining energy is greater than or equal to a preset amount; containing,
How to trade energy.
7. The method of claim 6,
(e) terminating the operation of the main plant 100 and the customer 200, thereby terminating the energy transaction; and
(f) the operation module 300 storing the energy transaction information for the steps (a) to (e); containing,
How to trade energy.

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