KR101852722B1 - Energy internet platform provision apparatus and method for energy storage system mutual power sharing service - Google Patents

Abstract

The present invention relates to an apparatus and a method for providing an energy internet platform for a power sharing service between energy storage systems. According to an embodiment of the present invention, the apparatus for providing an energy internet platform for a power sharing service between energy storage systems comprises: a transmittable/receivable wattage calculation unit to calculate transmittable wattage and receivable wattage, and compare calculation results to calculate transmittable/receivable wattage of an energy storage system (ESS); a transmitting/receiving operation power calculation unit to calculate maximum transmitting power and maximum receiving power, and compare calculation results to calculate transmitting/receiving operation power of a power conversion system (PCS); a transmitting/receiving time calculation unit to use the transmittable/receivable wattage and the transmitting/receiving operation power to calculate transmitting/receiving time; an execution time setting unit to set energy internet execution time; and an energy internet execution unit to execute energy internet to provide a power sharing service between a transmitting side and a receiving side in accordance with the transmitting/receiving time and the energy internet execution time.

Description

[0001] ENERGY INTERNET PLATFORM PROVISION APPARATUS AND METHOD FOR ENERGY STORAGE SYSTEM [0002] MUTUAL POWER SHARING SERVICE [

More particularly, the present invention relates to an apparatus and method for providing an energy Internet platform for mutual power sharing services, and more particularly, To calculate the time required to transmit and receive electricity, and set the energy internet execution time, thereby providing a platform for customers to use mutual power sharing services by executing the energy Internet that provides power sharing services between transmission customers and water supply customers To an apparatus and method for providing an energy internet platform for an energy storage system mutual power sharing service.

Traditionally, power trading has been operated as a simple form of trading system in which electricity is generated by a power generation company, distributed through transmission and distribution, distribution, and provided to customers and consumed.

However, in order to produce and distribute large-scale electric power, social costs such as site acquisition, environmental destruction, construction period, and collective complaints are required to a great extent, and social confusion is encountered.

For this reason, as new and renewable energy (for example, solar light, wind power, geothermal heat, etc.) and distributed power sources have been developed recently, technologies for exchanging power between customers have been proposed.

In other words, the paradigm of electric power trading is proposed as the distributed power supply and energy storage system (ESS) technology that can utilize renewable energy to cope with climate change, and the concept of trading, selling and sharing electric power among customers Are proposed.

The paradigm of this electricity trading involves transmission and receipt of power using information of the energy storage system, but there is not considered a method of accurately calculating the transmission / reception power using information of the energy storage system. In other words, in the past, there has been no consideration of a method for calculating the transmission / reception electric power, so a technical consideration for the payment of the electric power trading system and the electricity trading price is needed.

Therefore, it is necessary to provide a platform that can utilize mutual power sharing service among the customers in the energy Internet environment realized as the power trading is shifted from the centralized supply chain to the distributed supply chain.

Korean Registered Patent No. 10-1396094 (registered on May 1, 2014) Korean Registered Patent No. 10-1493691 (registered on Feb. 20, 2015)

The object of the present invention is to estimate the amount of electric power before and after the energy storage device (ESS) and the operation power before and after transmission of the power conversion device (PCS) Providing an energy internet platform providing device and method for energy storage system mutual power sharing service to provide a platform to utilize mutual power sharing service by executing energy internet providing mutual power sharing service .

An apparatus for providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention provides a power sharing service subscription procedure using an energy Internet platform and includes a power transmission customer and a power reception customer providing a power sharing service A customer interface unit for selecting the customer interface unit; Calculates the amount of power available for transmission and reception of the energy storage system (ESS) by calculating the transmission-side available power amount and the reception-side available power amount, respectively, in order to share power between the selected transmission customers and the reception customers Power available for transmission and reception; A transmitting and receiving operating power calculating unit for calculating operating power before and after transmission of the power converter (PCS) by calculating the maximum transmission power and the maximum power at the reception side, respectively, and comparing the calculated results; A time required to transmit and receive data to calculate a time required before and after sending and receiving data using the available transmission power and the transmission power; An execution time setting unit for setting an energy Internet execution time; And an energy Internet execution unit for executing an energy Internet that provides a mutual power sharing service between a transmission side and a receiving side according to the transmission time elapsed time and the energy Internet execution time, And a smaller value of the maximum power of the power conversion device of the transmission customer and the power conversion device of the power reception customer as the transmission / reception power.

The transmission-and-receivable-power-amount calculation unit calculates the transmission-side available power amount as a difference between a current battery charge amount (SOC) of the transmission customer and a battery maximum dischargeable capacity (DOD) It can be calculated as the difference between the available capacity and the current battery charge.

Wherein the transmission and reception power calculation unit calculates the transmission maximum power as a difference between a transmission PCS capacity and a newreproduction facility capacity when the power conversion apparatus is a hybrid type, This can be calculated by the difference in the capacity of the regeneration facility.

The pre-transmission time estimation time calculation unit may adjust the length of time required for transmission and reception according to the load state of the power network and the customer.

The execution time setting unit may guide resetting when the scheduled execution applies the peak reduction operation schedule of the energy storage device.

The energy Internet execution unit may transmit the transmission information on the energy Internet execution time and transmission time to the transmission customers, and may transmit the energy Internet execution time and the reception information on the reception time to the reception customers.

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In addition, according to an embodiment of the present invention, an energy internet operation information providing unit for providing energy internet operation information to an EMS or an operating system of a transmission customer and a faucet customer may be further provided.

A method of providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention includes providing a power sharing service subscription procedure using an energy internet platform and transmitting and receiving a power sharing service providing a power sharing service Selecting step; And calculates the amount of electric power that can be transmitted and received by the energy storage system (ESS) by comparing the calculation result with the calculated transmission power available electric power and the reception side available electric power amount, respectively, in order to share power between the selected transmission customers and the reception customers step; Calculating transmission power maximum power and power reception maximum power, respectively, and comparing the calculation results to calculate power before and after transmission of the power conversion apparatus (PCS); Estimating a time required for transmission and reception using the available transmission power and the transmission and reception power; Steps to Set Energy Internet Run Time; And executing the energy Internet to provide mutual power sharing services between the power transmission side and the power reception side according to the pre-transmission time period and the energy Internet execution time, and the step of calculating the pre- And a smaller value of the maximum power of the power conversion apparatus of the transmission customer and the power conversion apparatus of the power reception customer as the transmission / reception operation power.

Wherein the step of calculating the amount of power available for transmission and reception comprises the step of calculating the transmission-side available electric energy as a difference between a current battery charge amount (SOC) of the transmission customer and a battery maximum dischargeable capacity (DOD) It can be calculated as the difference between the maximum chargeable capacity of the battery and the current battery charge.

Wherein the calculating of the transmission and reception operating power includes calculating the transmission maximum power as a difference between the transmission PCS capacity and the newreproduction facility capacity when the power conversion apparatus is of a hybrid type, It can be calculated by the difference between the capacity and the capacity of the renewable facility.

The step of calculating the time before and after the sending and receiving can adjust the length of the time required before sending and receiving according to the load state of the power network and the customer.

The setting step may guide the reset if the scheduled execution applies a peak reduction operating schedule of the energy storage device.

The step of executing the energy Internet may transmit power transmission information on the energy Internet execution time and the power transmission time to a transmission customer and deliver the power reception information on the energy Internet execution time and the power reception time to the power reception customers.

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The present invention estimates the time required to transmit and receive electricity by calculating the amount of power available for transmission and reception of the energy storage device and the power for transmission and reception of the power conversion device and sets the energy Internet execution time to provide a power sharing service By running the energy Internet, we can provide a platform for customers to use mutual power sharing services.

In addition, the present invention can provide a platform for power sharing and energy trading between ESSs by calculating the amount of power transmitted and received and the execution time considering the battery charge information (SOC) of the ESS and the maximum power of the PCS among the customers having the ESS have.

In addition, various power service environments are realized according to the power business paradigm change of the present invention, and distributed power and energy storage systems are increased, power generated in the distributed power is stored in the ESS, .

In addition, the present invention not only implements liberalization and democratization of energy by implementing a power sharing service between customers, but also contributes or donates electric power to socially vulnerable classes, thereby realizing an energy welfare society.

In addition, the present invention can effectively manage existing power generation systems and transmission / distribution power facilities and avoid large-scale environmental destruction or collective egoism when the power sharing service is activated, so that it is possible to cope with the post-installation system by reducing enormous social costs.

1 is a diagram illustrating an apparatus for providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a customer or a company using the power sharing service using the energy Internet platform providing apparatus of FIG. 1;
3 is a diagram illustrating a method of providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 is a diagram illustrating an apparatus for providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention.

1, an apparatus 100 for providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention Renewable Energy Generation Electricity or existing electric power systems can be used to deal with electricity stored in an energy storage system (hereinafter referred to as "ESS") to customers who wish to use green energy using existing electricity networks, We conduct power and power calculations and procedures between the ESSs in the energy internet platform, which provides power sharing services between customers.

Such an energy internet platform providing apparatus 100 is implemented in the form of an energy internet in which a distributed energy supply network is a fusion of ICT technology and can integrally realize production, distribution and consumption of energy in a distributed energy supply system.

The energy Internet platform providing apparatus 100 provides a power sharing service between the transmission customer 10 having the ESS and the power reception customer 20. Here, the transmission customer 10 and the power reception customer 20 correspond to a power management system (PMS).

To this end, the energy Internet platform providing apparatus 100 includes a customer interface unit 110, a transmittable / deactivatable power amount calculating unit 120, a transmit / receive operating power calculating unit 130, a transmittable required time calculating unit 140, A time setting unit 150, an energy Internet execution unit 160, and an energy internet operation information providing unit 170. [

The customer interface unit 110 provides a subscription procedure of a power sharing service in which a customer or a company having an ESS uses an energy Internet platform. At this time, the customer interface unit 110 confirms the operation information of the ESS owned by the customer or the business.

The customer interface unit 110 performs a subsequent procedure for sharing power among the target customers when the target customers (i.e., the transmission customers 10 and the faucet customers 20) are selected by the customers or the businesses.

Hereinafter, the operation of the components of the energy Internet platform providing apparatus 100 for sharing power among target customers will be described.

The transmittable / deactivatable power amount calculating unit 120 calculates a transmittable power amount and an allowable transmittable power amount, compares the calculated result, and calculates a small value as a power amount (battery amount) before and after sending / receiving the ESS. At this time, the transmittable / deceivable power amount calculation unit 120 calculates the transmittable power amount based on the difference between the current state of charge (SOC) of the transmission customer 10 and the battery's maximum dischargeable capacity (DOD) do.

The transmittable / deactivatable power amount calculating unit 120 calculates an allowable transmittable power amount based on the difference between the battery maximum chargeable capacity of the power reception customer 20 and the current battery charge amount (SOC). Here, the maximum dischargeable capacity of the battery is about 20% of the capacity of the battery, and the maximum chargeable capacity of the battery is about 90% of the capacity of the battery.

The pre-transceiver operating power calculating section 130 calculates a small value of the maximum power among the power transmission system (hereinafter referred to as "PCS ") of the transmission customer 10 and the power reception customer 20 as the operating power.

When the PCS of the ESS is of the hybrid type, the transmission-before-transmission operating power calculating unit 130 calculates the transmission maximum power of the transmission customer 10 and the reception maximum power of the reception customer 20, . Here, the transmission maximum power of the transmission customer 10 is calculated as the difference between the transmission PCS capacity and the new and renewable capacity, and the reception maximum power of the reception customer 20 is calculated as the difference between the reception PCS capacity and the new reproduction facility capacity.

The transmission time elapsed time calculation unit 140 calculates the time required for the energy Internet power sharing service. At this time, the transmission / reception time estimation unit 140 uses the transmission / reception power amount calculated by the transmission / reception possible power amount calculation unit 120 and the transmission / reception operation power calculated by the transmission / reception power calculation unit 130 Calculate the time taken before sending.

The time required to transmit and receive data before transmission can be calculated by adjusting the length of time required before and after transmission according to the load conditions of the power network and the customer. That is, the time required before transmission can be calculated as '(power available for transmission / reception) / (power used for transmission / reception) × (1 / N)'. Here, the set value N of the time required before the water-sending can be a positive real number.

Preferably, the set value N of the time before and after the water feeding is 1, 2, or 3. That is, when N is 1, the time required before the basic transmission is calculated as '(power available for transmission / reception) / (power used for transmission / reception)', and when N is 2, (Power available for transmission and reception) / (power used for transmission and reception) as the time required for transmission and reception, which is increased by three times when N is 3, × (1/3) '.

The execution time setting unit 150 sets the energy Internet execution time for immediate execution or scheduled execution. At this time, the execution time setting unit 150 guides the reset if the scheduled execution applies the peak reduction operation schedule to the ESS.

The energy Internet execution unit 160 executes the energy Internet, which is a power sharing service, between the transmission customers 10 having the ESS and the faucet 20 according to the energy Internet execution time and the time before the transmission. At this time, the energy Internet execution unit 160 transmits the transmission information about the energy Internet execution time and the power transmission time to the transmission customer 10, and transmits the energy Internet execution time and the faucet information .

As a result, the ESS of the transmission customer 10 executes discharging in accordance with the discharging command, and the ESS of the reception customer 20 executes the charging in accordance with the charging instruction, whereby the electric power stored in the ESS of the transmission customer 10 is interlinked And is shared with the ESS of the power reception customer 20 through the power line. For example, when 50% of the electric power charged to the ESS of the transmission customer 10 is discharged, 50% of the electric power discharged from the ESS of the transmission customer 10 is charged to the ESS of the reception customer 20.

The energy Internet operation information providing unit 170 provides energy Internet operation information to the transmission customer 10 and the faucet customer 20 EMS or operating system. Such energy Internet operation information includes 'energy internet operating message', amount of power available for transmission and reception, transportation power before and after transmission, time required for transmission and transmission, and progress rate.

FIG. 2 is a view showing a customer or a company using the power sharing service using the energy Internet platform providing apparatus of FIG. 1;

Referring to FIG. 2, the energy Internet platform providing apparatus 100 can exchange, sell, or share electric power with each other by utilizing a power grid (payment of use cost) of a power system operating company and an ESS owned by a customer or a business. At this time, the energy Internet platform providing apparatus 100 acquires and manages operating information of the ESS. Here, a customer or a company having an ESS may be a new renewable energy provider 31, an energy-independent smart consumer 32, a power sales company 33, a mobile charging company 34, and the like.

3 is a diagram illustrating a method of providing an energy Internet platform for an energy storage system mutual power sharing service according to an embodiment of the present invention.

The energy Internet platform providing apparatus 100 provides a customer or a service provider with a procedure for subscribing to a power sharing service and accordingly the target customer (i.e., the transmission customer 10, the faucet customer 20) (S201).

Then, the energy Internet platform providing apparatus 100 calculates a power amount available for sending and receiving ESS and a power for sending and receiving PCS (S202). At this time, the energy Internet platform providing apparatus 100 calculates the transmission power-available power amount and the reception-side available power amount of the ESS, respectively, and then calculates a small value as the available transmission power. Likewise, the apparatus 100 for providing an energy Internet platform checks the transmission power of the PCS and the reception side operating power, respectively, and then calculates a small value as the transmission power before transmission and reception.

Next, the energy Internet platform providing apparatus 100 calculates the time required to transmit and receive data according to the load status of the power network and the customer using the available power amount of the ESS and the operating power before and after the PCS transmission (S203). At this time, the energy Internet platform providing apparatus 100 can adjust the set value for setting the length of time required for transmission and reception according to the load state of the power network and the customer.

In addition, the energy Internet platform providing apparatus 100 sets an energy Internet execution time to determine whether to execute immediately or at a scheduled time in relation to the execution time of the energy Internet (S204).

Thereafter, the energy Internet platform providing apparatus 100 executes the energy Internet in accordance with the time required for transmission and reception and the energy Internet execution time, thereby executing power sharing between the transmission customer 10 and the power reception customer 20. Thus, the electric power discharged through the ESS of the transmission customer 10 is charged to the ESS of the reception customer 20.

It will be apparent to those skilled in the art that various modifications and variations may be made in the present invention. Accordingly, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10: transmission customer 20: faucet customer
110: a customer interface unit 120:
130: Electric power consumption calculation before transmission and reception 140:
150: execution time setting unit 160:
170: Energy Internet Operation Information Offering

Claims (15)

A customer interface unit for providing a power sharing service subscription procedure using the energy Internet platform and selecting a transmission customer and a power reception customer for providing a power sharing service;
Calculates the amount of power available for transmission and reception of the energy storage system (ESS) by calculating the transmission-side available power amount and the reception-side available power amount, respectively, in order to share power between the selected transmission customers and the reception customers Power available for transmission and reception;
A transmitting and receiving operating power calculating unit for calculating operating power before and after transmission of the power conversion apparatus (PCS) by calculating the maximum power on the transmission side and the maximum power on the reception side, respectively, and comparing the calculated results;
A time required to transmit and receive data to calculate a time required before and after sending and receiving data using the available transmission power and the transmission power;
An execution time setting unit for setting an energy Internet execution time; And
And an energy Internet execution unit for executing the energy internet providing the mutual power sharing service between the transmission side and the receiving side according to the time before and after the transmission and reception and the energy Internet execution time,
The transmission / reception pre-operating power calculating unit calculates,
Wherein a small value of the maximum power of the power conversion device of the transmission customer and the power conversion device of the power reception customer is calculated as the transmission / reception operation power.
The method according to claim 1,
The transmission / reception possible power amount calculation unit calculates,
(SOC) of the transmission customer and a battery maximum dischargeable capacity (DOD), and calculates the difference between the battery's maximum chargeable capacity of the power reception customer and the current battery charge capacity Energy storage system that calculates the difference between the power consumption and the power consumption.
The method according to claim 1,
The transmission / reception pre-operating power calculating unit calculates,
When the power conversion apparatus is of a hybrid type, the transmission maximum power is calculated as the difference between the transmission PCS capacity and the newreproduction facility capacity, and the power reception maximum power is calculated as the difference between the reception PCS capacity and the new & Energy storage system An energy internet platform providing device for mutual power sharing service.
The method according to claim 1,
The pre-transfer time calculation unit calculates,
An energy storage system that adjusts the length of time before transmission according to the load of the grid and customer.
The method according to claim 1,
Wherein the execution time setting unit comprises:
An energy storage system for providing an energy internet platform for a mutual power sharing service that guides a reset if a scheduled run applies a peak reduction operating schedule of the energy storage.
The method according to claim 1,
The energy Internet execution unit,
The energy storage system mutual power sharing service for transmitting the transmission information on the energy Internet execution time and transmission time to the transmission customers and delivering the reception information on the energy Internet execution time and the power reception time to the power reception customers Energy Internet platform provided device.
delete The method according to claim 1,
An energy internet operation information providing unit for providing energy internet operation information to an EMS or an operating system of the transmission customer and the faucet customer;
And an energy storage system for providing an energy Internet platform for mutual power sharing services.
Providing a power sharing service subscription procedure using an energy internet platform, selecting a transmission customer and a power reception customer to provide a power sharing service;
And calculates the amount of electric power that can be transmitted and received by the energy storage system (ESS) by comparing the calculation result with the calculated transmission power available electric power and the reception side available electric power amount, respectively, in order to share power between the selected transmission customers and the reception customers step;
Calculating transmission power maximum power and power reception maximum power, respectively, and comparing the calculation results to calculate power before and after transmission of the power conversion apparatus (PCS);
Estimating a time required for transmission and reception using the available transmission power and the transmission and reception power;
Steps to Set Energy Internet Run Time; And
Executing the energy Internet providing mutual power sharing services between the power transmission side and the power receiving side according to the time before and after the transmission and reception of water and the energy Internet execution time,
The method of claim 1,
Wherein a small value of the maximum power of the power conversion device of the transmission customer and the power conversion device of the power reception customer is calculated as the power of transmission and reception before the energy exchange.
10. The method of claim 9,
The step of estimating the amount of power available for transmission /
Calculating a difference between the current battery charge amount (SOC) of the transmission customer and the battery maximum discharge allowable capacity (DOD), and calculating the difference between the battery maximum chargeable capacity of the receiver customer and the current battery charge capacity Energy Saving System Calculating the Energy Internet Platform for Mutual Power Sharing Services.
10. The method of claim 9,
The method of claim 1,
When the power conversion apparatus is of a hybrid type, the transmission maximum power is calculated as the difference between the transmission PCS capacity and the newreproduction facility capacity, and the power reception maximum power is calculated as the difference between the reception PCS capacity and the new & Energy storage system Providing energy internet platform for mutual power sharing service.
10. The method of claim 9,
The step of calculating the time before the water-
An energy storage system that adjusts the length of time before transmission according to the power grid and customer load conditions. Providing an energy internet platform for mutual power sharing services.
10. The method of claim 9,
Wherein, in the setting step,
A method of providing an energy Internet platform for an energy storage system mutual power sharing service that guides a reset when a scheduled run applies a peak reduction operational schedule of an energy storage device.
10. The method of claim 9,
The step of executing the energy Internet comprises:
An energy storage system for transmitting transmission information on the energy Internet execution time and transmission time to the transmission customers and transmitting the reception information on the energy Internet execution time and the power reception time to the power reception customers Energy Internet How to provide the platform.
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