KR102294290B1 - Method, device and system for providing charging power using ess for power supply of post type electric device - Google Patents

Abstract

According to one embodiment, a method, which is executed by a controller to supply electric power so as to enable a charging service using an energy storage system (ESS) for power supply to post type electric equipment, includes the following steps of: when determining operation for a plurality of pieces of post type electric equipment as necessary in accordance with a preset streetlight light-on time, supplying electric power from a power supply system to each of the plurality of pieces of post type electric equipment to perform a control operation such that lighting installed in each of the plurality of pieces of post type electric equipment is turned on, and measure a lighting load amount through a power amount consumed for the lighting; when confirming that a charging plug installed in each of the plurality of pieces of post type electric equipment is connected with at least one electric vehicle, supplying additional electric power from the power supply system to the electric vehicle to perform a control operation such that a battery of the electric vehicle is charged, and measure a charging load amount through a power amount consumed for a charging service for the electric vehicle; when confirming that a total load amount obtained by adding up the lighting load amount and the charging load amount is smaller than an available supply amount of the power supply system, maintaining the state of the ESS connected with the plurality of pieces of post type electric equipment in a standby mode to perform a control operation such that the electric power stored in the ESS is not discharged; and when confirming that the total load amount is greater than the available supply amount, setting the ESS to a discharge mode to perform a control operation such that the electric power stored in the ESS is supplied to the plurality of pieces of post type electric equipment.

Description

Method, device, and system for providing charging power using ESS for power supply of post-type electric devices

The following embodiments relate to a technology for providing charging power using an ESS (Energy Storage System) for power supply of a pole-type electric device.

General automobiles use gasoline or diesel as fuel. Gasoline or diesel not only generates harmful gases when burned, but also causes air pollution. Electric vehicles are in the spotlight as a solution to automobiles.

With the spread of electric vehicles, the demand for charging is also increasing. Accordingly, it is necessary to expand the charging infrastructure. The chargers for charging such electric vehicles can be divided into slow chargers and fast chargers.

When using a slow charger that charges slowly for a long time, power is supplied through the power distribution network, so there is no problem in terms of power management. In terms of power management, problems are bound to arise.

On the other hand, as the number of highway rest areas and public parking lots increases, the number of streetlights installed in those places is also increasing rapidly. Since lighting is basically installed in these street lamps, and electric power is supplied to the street lamp, there is an increasing demand for charging an electric vehicle through the electric power supplied to the street lamp.

Therefore, when the load exceeds the available supply capacity while providing the service of supplying charging power through the street light, the power stored in the ESS is supplied to the street light to satisfy the load, so the provision of the charging service continues through stable power supply There is an increasing demand for a power management method that is controlled to be as effective as possible.

Korean Patent Registration No. 10-2197356 (2020.12.31) Korean Patent Registration No. 10-2169817 (2020.10.26) Korean Patent Publication No. 10-2015-0025180 (2015.03.10) Korean Patent Publication No. 10-2020-0091082 (2020.07.30)

According to one embodiment, when it is confirmed that the total load, which is the sum of the lighting load and the charging load, is less than the available supply capacity of the power system, the state of the ESS connected to the plurality of pole-type electric devices is maintained in standby mode to be sent to the ESS. Power supply to a post-type electric device that controls so that the stored power is not discharged, and when it is confirmed that the total load is more than the available supply capacity, sets the ESS to a discharge mode and controls the power stored in the ESS to be supplied to a plurality of post-type electric devices An object of the present invention is to provide a method, apparatus and system for providing charging power using an ESS.

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood from the description below.

According to one embodiment, in the method of supplying and providing power so that a charging service is possible using an ESS (Energy Storage System) for power supply of a pole-type electric device, performed by a control device, at a preset lighting time of a street lamp Accordingly, when it is determined that operation of the plurality of post-type electric devices is necessary, power is supplied to each of the plurality of post-type electric devices from the power system, and the lighting installed in each of the plurality of post-type electric devices is controlled to turn on, measuring a lighting load through the amount of power used for the lighting; When it is confirmed that the charging plug installed in each of the plurality of post-type electric devices and one or more electric vehicles are connected, power is additionally supplied from the power system to the electric vehicle, and the battery of the electric vehicle is controlled to be charged, and measuring a charging load through the amount of power used as a charging service for the electric vehicle; When it is confirmed that the total load, which is the sum of the lighting load and the charging load, is less than the available supply capacity of the power system, the state of the ESS connected to the plurality of post-type electric devices is maintained in standby mode and stored in the ESS. controlling the power not to be discharged; and controlling the power stored in the ESS to be supplied to the plurality of post-type electric devices by setting the ESS to a discharging mode when it is confirmed that the total load is greater than the available supply capacity. A method of providing charging power using an ESS for power supply is provided.

When it is determined that the operation of the plurality of post-type electric devices is not necessary according to a preset turn-off time of street lamps in the method of providing charging power using the ESS for power supply of the post-type electric devices, each of the plurality of post-type electric devices controlling the lighting installed in each of the plurality of post-type electric devices to be turned off because power is not supplied to the pole, and measuring the lighting load to 0; when it is confirmed that the connection between the charging plug installed in each of the plurality of post-type electric devices and the electric vehicle is disconnected, controlling power not to be supplied to the electric vehicle and measuring the charging load to 0; and controlling the ESS to be charged with power supplied from the power system by setting the ESS to a charging mode when the total load is determined to be 0.

The method of providing charging power using the ESS for power supply of the post-type electric device may include: analyzing a charging pattern of the electric vehicle based on the number of times, time, and amount of charge supplied to the electric vehicle for a preset period; calculating a charging function activation index for the plurality of post-type electric devices through the charging pattern; If it is confirmed that the charging function activation index is within the preset reference range, it is determined that the number of batteries in the ESS is appropriate, and if it is confirmed that the charging function activation index is out of the reference range, the change to the number of batteries in the ESS is determining it is necessary; when it is confirmed that the charging function activation index is greater than the maximum value of the reference range, determining that the battery of the ESS needs to be increased, and transmitting a battery increase recommendation notification message to the manager terminal; and when it is confirmed that the charging function activation index is smaller than the minimum value of the reference range, determining that the battery of the ESS needs to be reduced, and transmitting a battery reduction recommendation notification message to the manager terminal.

The charging power providing method using the ESS for power supply of the post-type electric device includes: measuring a charging amount of the ESS by checking a state of charge (SOC) of the ESS; determining whether the charging amount of the ESS is smaller than a first set value set through the emergency storage amount of the ESS; when it is determined that the amount of charge of the ESS is greater than the first set value, setting the ESS to a standby mode and determining that power supply through the ESS is possible; when it is determined that the amount of charge of the ESS is smaller than the first set value, setting the ESS to a charging mode and determining that power supply through the ESS is impossible; When it is confirmed that the total load is greater than the available supply capacity in a state in which the ESS is set in the standby mode and the ESS is set to the discharge mode, the charging plug installed in each of the plurality of post-type electric devices exceeds the standard value. confirming the state of charge of the ESS again when the electric vehicle is simultaneously connected and the amount of discharge of the ESS reaches a target value; and when the ESS is set to the charging mode, and when the charging mode of the ESS is maintained for a predetermined reference period, re-checking the charging state of the ESS.

When it is determined that the amount of charge of the ESS is smaller than the first set value, the method of providing charging power using the ESS for power supply of the post-type electric device is connected to an electric vehicle among the plurality of post-type electric devices to provide a charging service determining whether there is a movable pole-type electric device in operation; controlling the ESS not to supply power to the plurality of post-type electric devices by setting the ESS to a charging mode when it is determined that there is no movable post-type electric device; determining whether the amount of charge of the ESS is smaller than a second set value set through a state of health (SOH) of the ESS when it is determined that there is the movable post-type electric device; when it is determined that the amount of charge of the ESS is greater than the second set value, setting the ESS to a standby mode and determining that power supply through the ESS is possible; When it is confirmed that the total load is greater than the available supply capacity in a state in which the ESS is set in the standby mode and the ESS is set to the discharge mode, when charging of the electric vehicle connected to the movable pole type electric device is completed, setting the ESS to a charging mode to control power not to be supplied from the ESS to the plurality of post-type electric devices; and when it is determined that the charging amount of the ESS is smaller than the second set value, even if charging of the electric vehicle connected to the movable pole type electric device is not completed, the ESS is set to the charging mode, and the plurality of struts in the ESS It may further include the step of controlling so that power is not supplied to the type electric device.

According to one embodiment, when it is confirmed that the total load, which is the sum of the lighting load and the charging load, is less than the available supply capacity of the power system, the state of the ESS connected to the plurality of pole-type electric devices is maintained in standby mode to be sent to the ESS. By controlling so that the stored power is not discharged, and when it is confirmed that the total load is more than the available supply capacity, the ESS is set to the discharge mode and the power stored in the ESS is controlled to be supplied to a plurality of pole-type electric devices so that the total load is available for supply If the amount is exceeded, the load stored in the ESS can be supplied to satisfy the load, so there is an effect of creating an environment for using a service that supplies charging power through stable power supply.

On the other hand, effects according to the embodiments are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

1 is a diagram schematically showing the configuration of a system for providing a service for supplying charging power using an ESS for power supply of a pole-type electric device according to an embodiment.
FIG. 2 is a flowchart for explaining a process of providing a charging service using an ESS for power supply of a pole-type electric device according to an embodiment.
3 is a flowchart illustrating a process of setting an ESS to a charging mode according to an embodiment.
4 is a flowchart for explaining a process of determining whether an increase or decrease in the amount of the battery of the ESS is necessary according to an embodiment.
5 is a flowchart for explaining a process of setting a charging mode and a discharging mode of the ESS according to an embodiment.
6 is a flowchart illustrating a process of controlling the provision of a charging service according to an embodiment.

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

Specific structural or functional descriptions of the embodiments are disclosed for purposes of illustration only, and may be changed and implemented in various forms. Accordingly, the embodiments are not limited to a specific disclosure form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various components, these terms should be interpreted only for the purpose of distinguishing one component from another. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected or connected to the other component, but it should be understood that another component may exist in between.

The terms used in the examples are used for description purposes only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In the description of the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

The embodiments may be implemented in various types of products, such as personal computers, laptop computers, tablet computers, smart phones, televisions, smart home appliances, intelligent cars, kiosks, wearable devices, and the like.

1 is a diagram schematically showing the configuration of a system for providing a service for supplying charging power using an ESS for power supply of a post-type electric device according to an embodiment.

Referring to FIG. 1 , a system according to an embodiment may include an ESS 100 , a plurality of post-type electric devices 200 , an electric vehicle 300 , and a control device 400 .

The ESS 100 may be connected to a power system to charge and store power supplied from the power system, and may discharge the charged power to supply power to the plurality of post-type electric devices 200 . For example, an ESS can be implemented with a 7kW/20kWh charger.

The plurality of post-type electric devices 200 may be implemented as street lights installed in a specific area, and each of the plurality of post-type electric devices 200 is equipped with lighting equipment, so that the lights are turned on or off according to a preset time. can be turned off For example, the first post-type electric device 210 , which is one of the plurality of post-type electric devices 200 , may include solar equipment 400W, LED 60W, and the like.

A charging plug is installed in each of the plurality of post-type electric devices 200 , and when the charging plug and the electric vehicle 300 are connected, power may be supplied to the electric vehicle 300 .

Specifically, when the electric vehicle 300 is connected to the charging plug installed in the first post-type electric device 210 , which is one of the plurality of post-type electric devices 200 , through the first post-type electric device 210 . A charging service may be provided. In this case, the power supplied for the charging service may be supplied from the power system, and the power stored in the ESS 100 may be additionally supplied according to the mode set in the ESS 100 .

When the charging plug installed in the first post-type electric device 210 is connected to the electric vehicle 300 , the battery of the electric vehicle 300 may be charged. For example, when the electric vehicle 300 is connected to the first post-type electric device 210 , which is a street lamp having a built-in electric vehicle charger, 3kW of power may be supplied to charge the battery of the electric vehicle 300 .

The control device 400 may control the ESS 100 and the plurality of post-type electric devices 200 to operate normally.

The control device 400 includes a processor and a memory. The processor of the control device 400 may perform at least one method to be described later with reference to FIGS. 2 to 6 . The memory of the control device 400 may store information related to methods to be described later or a program in which methods to be described later are implemented. The memory of the control device 400 may be a volatile memory or a non-volatile memory.

The processor of the control device 400 may execute a program and control the control device 400 . The code of the program executed by the processor of the control device 400 may be stored in the memory of the control device 400 .

The control device 400 may be connected to an external device (eg, a personal computer or a network) through an input/output device (not shown), and may exchange data with the external device through wired/wireless communication.

According to an embodiment, the control device 400 may control the supply of power to enable the charging service of the electric vehicle 300 through the plurality of post-type electric devices 200 . In this case, the plurality of post-type electric devices 200 may receive auxiliary power from a renewable energy source, and may be implemented as a street lamp having a built-in charger of the electric vehicle.

The control device 400 may control the power supply so that the charging service of the electric vehicle can be smoothly performed for a predetermined time in an area where the charger of the electric vehicle does not receive adequate power. Specifically, when the power of the power system is primarily controlled to be supplied, and the charging load of the electric vehicle 300 or the lighting load of the plurality of post-type electric devices 200 exceeds the available supply capacity of the power system, or When it is predicted to exceed, the power stored in the ESS 100 may be discharged to satisfy the load.

The control device 400 can charge the ESS 100 when there is no load, and analyze the usage trend of the charger for each period (daily, monthly, etc.) to identify the user pattern, and accordingly, the battery required for charging the electric vehicle. It is possible to generate a report on the increase or decrease of , and provide it to the manager terminal.

The control device 400 can provide a slow charging service through a plurality of post-type electric devices 200 installed in highway rest areas, public parking lots, etc., and in a plurality of post-type electric devices 200 arranged for each zone Based on the provided charging service, valid information such as the movement route, movement amount, increase amount, and charging time period of users using electric vehicles can be obtained, and this can be used to promote public information.

In addition, the control device 400 can calculate the amount of greenhouse gas reduction based on the time-hourly charging amount, discharge amount, peak sensitivity, electric vehicle power supply, etc. of the integrated ESS 100, and carbon credits can be secured.

FIG. 2 is a flowchart illustrating a process of providing a charging service using an ESS for power supply of a pole-type electric device according to an embodiment.

Referring to FIG. 2 , first, in step S201 , the control device 400 may set the state of the ESS 100 connected to the plurality of post-type electric devices 200 to the standby mode.

Specifically, the control device 400 may set the state of the ESS 100 to any one of a charging mode, a standby mode, and a discharging mode in order to control the operation of the ESS 100 .

When the ESS 100 is set to the charging mode, the control device 400 may control the power stored in the ESS 100 not to be discharged, and may control the power supplied from the power system to be charged in the ESS 100 . That is, the ESS 100 may be set to a charging state in which power is supplied and charged.

When the ESS 100 is set to the standby mode, the control device 400 controls the power stored in the ESS 100 not to be discharged or charged, and the power supplied from the power system is transferred to the plurality of post-type electric devices 200 . supply can be controlled. That is, it may be set to a standby state in which power is not supplied to the ESS 100 and the power stored in the ESS 100 is not discharged.

When the ESS 100 is set to the discharging mode, the control device 400 controls the power stored in the ESS 100 to be discharged, so that the power supplied from the power system and the power discharged from the ESS 100 are combined with a plurality of props. It can be controlled to be supplied to the type electric device 200 . That is, the power stored in the ESS 100 may be discharged and discharged.

When the ESS 100 is set to the standby mode in step S201, in step S202, the control device 400 may check the current time.

In step S203 , the control device 400 may determine whether the operation of the plurality of post-type electric devices 200 is required according to a preset lighting time of the street lamp. Here, the lighting time of the street lamp may be set differently every day according to seasons, weather, and the like. That is, the control device 400 may determine whether the operation of the plurality of post-type electric devices 200 is necessary by checking whether the current time has reached the lighting time of the street lamp.

If it is determined in step S203 that the operation of the plurality of post-type electric devices 200 is not necessary, the process returns to step S202 after a predetermined time elapses, and the control device 400 may check the current time again.

If it is determined in step S203 that the operation of the plurality of post-type electric devices 200 is necessary, in step S204, the control device 400 is supplied with power from the power system to each of the plurality of post-type electric devices 200, It is possible to control the lighting installed in each of the plurality of post-type electric devices 200 to be turned on. At this time, the ESS 100 is set to the standby mode, so that power stored in the ESS 100 is not discharged while power is not supplied to the ESS 100 and can maintain a standby state.

In step S205 , the control device 400 may measure the amount of lighting load through the amount of power used for lighting.

On the other hand, when the ESS 100 is set to the standby mode in step S201, in step S206, the control device 400 connects the electric vehicle 300 to the charging plug installed in each of the plurality of post-type electric devices 200 when the electric vehicle 300 is newly connected. , the connection of the electric vehicle 300 can be recognized and confirmed.

In step S207 , the control device 400 may determine whether the charging plug installed in each of the plurality of post-type electric devices 200 and the one or more electric vehicles 300 are newly connected.

If it is confirmed in step S207 that there is no electric vehicle 300 newly connected to the charging plug installed in each of the plurality of post-type electric devices 200, the process returns to step S206, and the control device 400 determines that the electric vehicle 300 is When a new connection is made, the connection of the electric vehicle 300 may be recognized and confirmed.

If it is confirmed in step S207 that one or more electric vehicles 300 are newly connected to the charging plugs installed in each of the plurality of post-type electric devices 200, in step S208, the control device 400 controls the electric vehicle 300 from the power system. Power may be additionally supplied to the furnace, so that the battery of the electric vehicle 300 may be controlled to be charged.

For example, when the electric vehicle 300 is newly connected to the charging plug installed in the first post-type electric device 210 , the control device 400 adds power from the power system to the first post-type electric device 210 . It can be supplied to the electric vehicle, and can be controlled to charge the battery of the electric vehicle 300 through the first post-type electric device 210, and through this process, the electric vehicle connected to the first post-type electric device 210 ( 300) to provide a charging service.

In step S209 , the control device 400 may measure the amount of charging load through the amount of power used as a charging service for the electric vehicle 300 .

In step S210 , the control device 400 may calculate the total load by adding up the lighting load and the charging load.

In step S211 , the control device 400 may determine whether the total load is less than the available supply capacity of the power system. Here, the available supply capacity may be set differently according to the current state of the power system.

If it is confirmed in step S211 that the total load is less than the available supply capacity, it returns to step S201, the control device 400 maintains the state of the ESS 100 in a standby mode, so that the power stored in the ESS 100 is not discharged. can be controlled not to. In this case, when the ESS 100 is in the standby mode, only the power supplied from the power system may be supplied to the plurality of post-type electric devices 200 .

If it is confirmed in step S211 that the total load is greater than the available supply capacity, in step S212 , the control device 400 sets the ESS to a discharging mode, and the power stored in the ESS 100 is stored in a plurality of post-type electric devices 200 . supply can be controlled. At this time, when the ESS 100 is in the discharge mode, the power supplied from the power system and the power discharged from the ESS 100 may be supplied to the plurality of post-type electric devices 200 together.

As described above, when the total load increases due to lighting of the lighting provided in the plurality of post-type electric devices 200 and charging of the electric vehicle 300 , the electric power stored in the ESS 100 is discharged to satisfy the load. can do it

3 is a flowchart illustrating a process of setting an ESS to a charging mode according to an embodiment.

Referring to FIG. 3 , first, in step S301 , the control device 400 may set the ESS 100 to a discharging mode by determining that the total load is greater than the available supply capacity.

When the ESS 100 is set to the discharge mode in step S301 , in step S302 , the control device 400 may check the current time.

In step S303 , the control device 400 may determine whether it is necessary to stop the operation of the plurality of post-type electric devices 200 according to a preset turn-off time of the street lamp. Here, the time to turn off the street lamp may be set differently every day according to seasons, weather, and the like. That is, the control device 400 may determine whether the operation stop of the plurality of post-type electric devices 200 is necessary by checking whether the current time has reached the turn-off time of the street lamps.

If it is determined in step S303 that it is not necessary to stop the operation of the plurality of post-type electric devices 200, that is, if it is determined that the operation of the plurality of post-type electric devices 200 is still necessary, after a certain time has elapsed Returning to step S302, the control device 400 may check the current time again.

If it is determined in step S303 that it is necessary to stop the operation of the plurality of post-type electric devices 200, that is, if it is determined that the operation of the plurality of post-type electric devices 200 is no longer necessary, in step S304, Since power is not supplied to each of the plurality of post-type electric devices 200 from the power system, the control device 400 may control the lighting installed in each of the plurality of post-type electric devices 200 to be turned off. In this case, the control device 400 may change the state of the ESS from the discharge mode to the standby mode to set.

In step S305 , the control device 400 may measure the lighting load as 0 because the lighting is turned off and there is no amount of power used for lighting.

On the other hand, when the ESS 100 is set to the discharging mode in step S301 , in step S306 , the control device 400 is one of the electric vehicles 300 connected to the charging plugs installed in each of the plurality of post-type electric devices 200 . The disconnection of the electric vehicle 300 may be confirmed by recognizing the electric vehicle 300 from which the connection is released.

In step S307 , the control device 400 may check whether the connection between the charging plug installed in each of the plurality of post-type electric devices 200 and the electric vehicle 300 is released.

When it is confirmed in step S307 that there is no electric vehicle 300 disconnected from the charging plug installed in each of the plurality of post-type electric devices 200, the process returns to step S306, and the control device 400 is connected to the charging plug The disconnection of the electric vehicle 300 may be confirmed by recognizing the released electric vehicle 300 .

If it is confirmed in step S307 that the connection between the charging plug installed in each of the plurality of post-type electric devices 200 and the electric vehicle 300 is disconnected, in step S308, the control device 400 controls the electric vehicle 300 from the power system. It can be controlled so that power is not supplied. In this case, the control device 400 may change the state of the ESS from the discharge mode to the standby mode to set. When the lights installed in the plurality of post-type electric devices 200 are turned on, the power supplied from the power system to the plurality of post-type electric devices 200 may be maintained, and the plurality of post-type electric devices from the ESS 100 may be maintained. The device 200 may no longer be powered.

After step S308 , the control device 400 may determine whether there are more electric vehicles 300 connected to the charging plugs installed in each of the plurality of post-type electric devices 200 .

If it is confirmed that the electric vehicle 300 connected to the charging plug installed in each of the plurality of post-type electric devices 200 is still present, the process returns to step S306 and the control device 400 disconnects the electric vehicle 300 . can be checked again.

If it is confirmed that there is no electric vehicle 300 connected to the charging plug installed in each of the plurality of post-type electric devices 200 , in step S309 , the control device 400 provides a charging service for the electric vehicle 300 . Since there is no amount of power used, the charging load can be measured as zero.

In step S310 , the controller 400 may calculate the total load as 0 by adding up the lighting load and the charging load.

In step S311, when the total load is confirmed as 0, the control device 400 sets the ESS 100 to the charging mode, so that the power supplied from the power system is not supplied to the plurality of post-type electric devices 200 and the ESS By controlling the supply to 100 , it is possible to control so that the power supplied from the power system is stored and charged in the ESS 100 .

4 is a flowchart for explaining a process of determining whether an increase or decrease in the amount of the battery of the ESS is necessary according to an embodiment.

Referring to FIG. 4 , first, in step S401 , the control device 400 is configured based on the number of times, time, and amount of charge supplied to the electric vehicle 300 through the plurality of post-type electric devices 200 for a preset period. Thus, the charging pattern of the electric vehicle 300 may be analyzed.

That is, the control device 400 grasps the usage pattern of the charging service provided through the plurality of post-type electric devices 200 , and grasps the number of times of power supply, the supply time, the amount of charging for each time period, and the like, and the electric vehicle 300 ) can be analyzed.

In step S402 , the control device 400 may calculate the charging function activation index for the plurality of post-type electric devices 200 through the charging pattern of the electric vehicle 300 . Here, the charging function activation index may mean an activation index indicating how often the charging service provided through the plurality of post-type electric devices 200 is used.

Specifically, based on the analysis result of the charging pattern of the electric vehicle 300 , the control device 400 calculates a higher value of the charging function activation index as the number of times of power supply increases, and the longer the supply time, the higher the value. The charging function activation index of , may be calculated, and a higher value of the charging function activation index may be calculated as the amount of charge increases.

In step S403 , the control device 400 may check whether the charging function activation index is within a reference range. Here, the reference range may be set differently according to embodiments.

If it is confirmed in step S403 that the charging function activation index is within the reference range, in step S404 , the control device 400 may determine that the number of batteries of the ESS 100 is appropriate.

For example, if the reference range is set to 80 to 90 and the charging function activation index is calculated as 85 points, the control device 400 determines that the number of batteries currently provided in the ESS 100 is appropriate, It can be judged that the increase or decrease of the dose is not necessary.

If it is confirmed in step S403 that the charging function activation index is out of the reference range, in step S405 , the control device 400 may determine that the number of batteries of the ESS 100 is not appropriate and thus a change is necessary.

In step S406, it may be checked whether the charging function activation index is greater than the maximum value of the reference range.

If it is confirmed in step S406 that the charging function activation index is greater than the maximum value of the reference range, in step S407, the control device 400 determines that it is necessary to increase the battery of the ESS 100, and sends a battery increase recommendation notification message. It can be transmitted to the manager terminal.

For example, when the reference range is set to 80 to 90, and the charging function activation index is calculated as 95 points, the control device 400 uses the charging service more than the reference value, so the battery currently provided in the ESS 100 is greater than the reference value. It may be determined that the number of is insufficient, and thus it may be determined that an increase in the battery is necessary.

If it is determined in step S406 that the charging function activation index is not greater than the maximum value of the reference range, since the charging function activation index is out of the reference range, it may be confirmed that the charging function activation index is smaller than the minimum value of the reference range, S408 In the step, when it is confirmed that the charging function activation index is smaller than the minimum value of the reference range, the control device 400 determines that the battery of the ESS 100 needs to be reduced and transmits a battery reduction recommendation notification message to the manager terminal. have.

For example, if the reference range is set to 80 to 90, and the charging function activation index is calculated as 75 points, the control device 400 indicates that the use of the charging service is less than the reference value and the battery currently provided in the ESS 100 is less than the reference value. It is determined that the number of is left, and thus it can be determined that the battery needs to be reduced.

5 is a flowchart for explaining a process of setting a charging mode and a discharging mode of the ESS according to an embodiment.

First, in step S501 , the control device 400 may measure a charge amount of the ESS 100 by checking a state of charge (SOC) of the ESS 100 .

In step S502 , the control device 400 may determine whether the amount of charge of the ESS 100 is smaller than the first set value.

The first set value according to an embodiment may be set through the emergency storage amount of the ESS 100, for example, when the minimum emergency storage amount to be stored to be used in an emergency due to a power failure is 10Wh, the first setting The value can be set to 10Wh.

If it is determined in step S502 that the charging amount of the ESS 100 is smaller than the first set value, in step S503, the control device 400 sets the ESS 100 to the charging mode, so that the power supply through the ESS 100 is can be judged as impossible.

When the ESS 100 is set to the charging mode, the control device 400 may control so that power is not supplied from the ESS 100 to the plurality of post-type electric devices 200 .

If it is determined in step S502 that the amount of charge of the ESS 100 is greater than the first set value, in step S505, the control device 400 sets the ESS 100 to a standby mode, so that the power supply through the ESS 100 is can be judged as possible.

When the ESS 100 is set to the standby mode, the control device 400 changes the state of the ESS 100 to a standby state waiting for power to be supplied from the ESS 100 to the plurality of post-type electric devices 200 . can be set.

In step S506 , the control device 400 may check whether the total load is less than the available supply capacity.

If it is confirmed in step S506 that the total load is less than the available supply capacity, the process returns to step S505, and the control device 400 may control the state of the ESS 100 to be maintained in the standby mode.

If it is confirmed in step S506 that the total load is greater than the available supply capacity, in step S507, the control device 400 may change the state of the ESS from the standby mode to the discharge mode and set it.

Meanwhile, when the ESS 100 is set to the charging mode, the control device 400 may check the charging state of the ESS 100 again when the charging mode of the ESS 100 is maintained for a predetermined reference period.

Specifically, in step S504 , the control device 400 may determine whether the charging mode is maintained for a predetermined reference period.

If it is determined in step S504 that the charging mode is maintained for the reference period, it returns to step S501, and the control device 400 may check the charging state of the ESS 100 again.

If it is determined in step S507 that the charging mode is not maintained for the reference period, the process returns to step S503, and the control device 400 may set the charging mode of the ESS 100 to be maintained.

On the other hand, in the control device 400, when the ESS 100 is set to the discharging mode, the electric vehicle 300 above the standard value is simultaneously connected to the charging plug installed in each of the plurality of post-type electric devices 200, and the ESS ( When the discharge amount of 100) reaches the target value, the state of charge of the ESS 100 may be checked again.

Specifically, in step S508 , the control device 400 increases the discharge amount of the ESS 100 as it is simultaneously connected to the electric vehicle 300 above the reference value among the plurality of post-type electric devices 200 , It may be determined whether the discharge amount has reached a target value.

If it is determined in step S508 that the discharge amount of the ESS 100 has reached the target value, the process returns to step S501, and the control device 400 may check the state of charge of the ESS 100 again.

If it is determined in step S508 that the discharge amount of the ESS 100 has not reached the target value, the process returns to step S507 and the control device 400 may set the discharge mode of the ESS 100 to be maintained.

As such, according to one embodiment, when the amount of charge of the ESS 100 falls below the first set value, the ESS 100 is controlled not to discharge power, and the charge amount of the ESS 100 is greater than the first set value. Only in this case, the power stored in the ESS 100 can be controlled to be discharged.

6 is a flowchart illustrating a process of controlling the provision of a charging service according to an exemplary embodiment.

First, in step S601 , the control device 400 may measure the charging amount of the ESS 100 by checking the charging state of the ESS 100 .

In step S602 , the control device 400 may determine whether the charging amount of the ESS 100 is smaller than the first set value.

If it is determined in step S602 that the charging amount of the ESS 100 is smaller than the first set value, in step S603, the control device 400 is connected to the electric vehicle 300 among the plurality of post-type electric devices 200 to provide a charging service It can be determined whether there is a movable pole type electric device that provides

For example, when the electric vehicle 300 is connected to the first post-type electric device 210 and currently provides a charging service through the first post-type electric device 210, the control device 400 may 1 By understanding the post-type electric device 210 as a movable post-type electric device, it can be determined that the movable post-type electric device exists.

If it is determined in step S602 that the amount of charge of the ESS 100 is greater than the first set value, in step S604, the control device 400 sets the ESS 100 to a discharging mode, so that the power stored in the ESS 100 is discharged. can be controlled as much as possible.

Returning to step S601 after step S604 , the control device 400 may check the charging state of the ESS 100 again.

Meanwhile, if it is determined in step S603 that there is a movable post-type electric device, in step S605 , the control device 400 may determine whether the amount of charge of the ESS 100 is smaller than the second set value.

The second set value according to an embodiment is set through a state of health (SOH) of the ESS 100 and may be set to a value lower than the first set value, for example, the first set value If this is 10Wh and the value that starts to affect the lifespan of the ESS 100 is 5Wh, the second set value may be set to 5Wh.

If it is determined in step S603 that there is no movable post-type electric device, in step S606 , the control device 400 sets the ESS 100 to a charging mode to control the ESS 100 not to discharge power.

Returning to step S601 after step S606, the control device 400 may check the charging state of the ESS 100 again.

On the other hand, if it is determined in step S605 that the amount of charge of the ESS 100 is smaller than the second set value, in step S606, the control device 400 controls the electric vehicle 300 connected to the movable pole type electric device even if the charging of the electric vehicle 300 is not completed. , by setting the ESS 100 to the charging mode, it is possible to control so that power is not discharged from the ESS 100 .

If it is determined in step S605 that the charging amount of the ESS 100 is greater than the second set value, in step S607, the control device 400 sets the ESS to a standby mode so that the power stored in the ESS 100 can be supplied. It can be set to a standby state.

In step S608 , the control device 400 may check whether the total load is less than the available supply capacity.

If it is confirmed in step S608 that the total load is less than the available supply capacity, the process returns to step S607 , and the controller 400 may control the state of the ESS 100 to be maintained in the standby mode.

If it is confirmed in step S608 that the total load is greater than the available supply capacity, in step S609, the control device 400 may change the state of the ESS from the standby mode to the discharge mode and set it.

When the state of the ESS is set to the discharging mode, the control device 400 controls so that power is supplied only to the movable post-type electric devices that are currently charging service among the plurality of post-type electric devices 200 , and the movable post-type electric devices 200 . By controlling that power is not supplied to other post-type electric devices other than the device, it is possible to control so that charging services are not additionally provided.

If the provision of the charging service through the movable post-type electric device continues, in step S610 , the control device 400 may determine whether the provision of the charging service through the movable post-type electric device is completed. In this case, when the connection between the movable post-type electric device and the electric vehicle 300 is released, the control device 400 may determine that the provision of the charging service is complete.

If it is determined in step S610 that the provision of the charging service is complete, in step S606, the control device 400 sets the ESS 100 to the charging mode, since the provision of the charging service through the movable pole type electric device is completed, and the ESS At ( 100 ), it is possible to control so that the power is no longer discharged.

If it is determined in step S610 that the provision of the charging service has not been completed, the process returns to step S605, and the control device 400 may determine again whether the charging amount of the ESS 100 is smaller than the second set value.

As such, according to one embodiment, when the charging service is provided to the electric vehicle 300 through the movable pole-type electric device, since the provision of the charging service cannot be suddenly stopped, the lifespan of the ESS 100 is affected. It is possible to maintain the provision of the charging service until it falls below the second set value, which is the value at which the cycle starts, and when the provision of the charging service is completed, the charging service is not newly provided and the ESS ( 100) can be changed to charging mode.

The embodiments described above may be implemented by a hardware component, a software component, and/or a combination of a hardware component and a software component. For example, the apparatus, methods and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate (FPGA) array), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or device, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems, and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (3)

In the method for supplying and providing power so that a charging service is possible using an ESS (Energy Storage System) for power supply of a holding type electric device, performed by a control device,
When it is determined that operation of the plurality of post-type electric devices is necessary according to the preset lighting time of the street lamp, power is supplied to each of the plurality of post-type electric devices from the power system, and the lighting installed in each of the plurality of post-type electric devices controlling the lighting to be turned on, and measuring a lighting load through the amount of power used for the lighting;
When it is confirmed that the charging plug installed in each of the plurality of post-type electric devices and one or more electric vehicles are connected, power is additionally supplied from the power system to the electric vehicle, and the battery of the electric vehicle is controlled to be charged; measuring a charging load through an amount of power used as a charging service for an electric vehicle;
When it is confirmed that the total load, which is the sum of the lighting load and the charging load, is less than the available supply capacity of the power system, the state of the ESS connected to the plurality of post-type electric devices is maintained in standby mode and stored in the ESS controlling the power not to be discharged;
controlling the power stored in the ESS to be supplied to the plurality of post-type electric devices by setting the ESS to a discharging mode when it is confirmed that the total load is greater than the available supply capacity;
analyzing a charging pattern of the electric vehicle based on the number, time, and amount of charge supplied to the electric vehicle for a preset period;
calculating a charging function activation index for the plurality of post-type electric devices through the charging pattern;
When it is confirmed that the charging function activation index is within the preset reference range, it is determined that the number of batteries in the ESS is appropriate, and when it is confirmed that the charging function activation index is out of the reference range, the change to the number of batteries in the ESS is determining it is necessary;
when it is confirmed that the charging function activation index is greater than the maximum value of the reference range, determining that the battery of the ESS needs to be increased, and transmitting a battery increase recommendation notification message to the manager terminal; and
When it is confirmed that the charging function activation index is smaller than the minimum value of the reference range, determining that the battery of the ESS needs to be reduced, and transmitting a battery reduction recommendation notification message to the manager terminal,
A method of providing charging power using ESS for power supply of post-type electric devices. According to claim 1,
If it is determined that the operation of the plurality of post-type electric devices is not necessary according to the preset street lamp light-off time, power is not supplied to each of the plurality of post-type electric devices, and the electric power is not supplied to each of the plurality of post-type electric devices controlling the lighting to be turned off, and measuring the lighting load amount as 0;
when it is confirmed that the connection between the charging plug installed in each of the plurality of post-type electric devices and the electric vehicle is disconnected, controlling power not to be supplied to the electric vehicle and measuring the charging load to zero; and
When the total load is confirmed as 0, setting the ESS to a charging mode further comprising the step of controlling the power supplied from the power system to be charged in the ESS,
A method of providing charging power using ESS for power supply of post-type electric devices. delete

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