KR20210118990A - Electric vehicle charger system and method - Google Patents

Abstract

The present invention relates a demand management system of charging power of an electric vehicle which checks usual usage and the reducible amount by monitoring an electric power metering value of an electric vehicle charging station, aims to generate revenue from power reduction by managing demand for charging power by setting an amount of reduction in the power exchange and contracting the amount of reduction between a demand management operator and a charging station operator, and allows remote control and management of charger usage at charging stations. The system checks the electric vehicle charging power at electric vehicle charging stations, sets the amount of charging power reduction, and promotes revenue generation between the charging station operator, the charging operation server manager, and the demand management operator according to the power reduction by managing the demand for charging power through a reduction contract between the demand management operator and the charging station operator.

Description

Electric vehicle charging power demand management system {Electric vehicle charger system and method}

The present invention relates to an electric vehicle charging power demand management system, and in particular, by monitoring the electric power metering value of an electric vehicle charging station, checking the usual usage and reduction potential, setting the reduction amount in the power exchange, and contracting the reduction amount between the demand management operator and the charging station operator It relates to an electric vehicle charging power demand management system that manages the demand for charging power through electric vehicle charging, promotes revenue generation through power reduction, and enables remote control and management of charger usage at charging stations.

According to the carbon emission regulation policy, the automobile industry has been asked to increase fuel efficiency and reduce carbon emission for petroleum-based automobiles. ") is being developed in various forms, and demand is also rapidly increasing.

Since the electric motor for the operation of such an electric vehicle consumes excessive electric energy while driving, the distance that can be driven when the battery is charged is shorter than that of a general vehicle, and the electric vehicle must frequently charge the battery.

In addition, since the time required to charge the battery of the electric vehicle is considerably longer than the time required to refuel the general vehicle, it is preferable that the charging of the electric vehicle proceeds during a parked time when not driving.

In recent years, electric vehicle charging equipment (EVSE) is installed in buildings or public facilities, and a system capable of charging electric vehicles with commercial power or grid power has been introduced.

Conventionally proposed technologies for an electric vehicle charging system are disclosed in <Patent Document 1> to <Patent Document 5>.

<Patent Document 1> relates to an electric vehicle fast charger for supplying charging power to electric vehicles by receiving alternating current (AC) power from the power system and converting it into direct current (DC) power, and functions, specifications, design, and mechanism of the fast charger Development, H/W and S/W development, payment system development, RFID test and optimization, operation sequence, test procedure and equipment, improvement for each stage of production test, test and evaluation, and description of main modules to efficiently charge power supply

In addition, <Patent Document 2> provides a charging station with excellent economic feasibility by eliminating redundant investment in facilities, increasing utilization, and eliminating the need to separately provide for a bus or truck.

In addition, <Patent Document 3> allows the converter to perform the PFC function, prevents deterioration of power during charging, can be designed by reducing the power capacity of the PFC converter, has high power conversion efficiency, and can be used in batteries or electric vehicles for electric vehicles A fast charger for electric vehicles that can also be used to charge batteries for bicycles is provided.

In addition, <Patent Document 4> monitors an act of unreasonably lowering the charging rate by arbitrarily manipulating a meter that calculates the amount of charging power of an electric vehicle, and performs an appropriate response, such as sending a warning message or blocking charging, to the operation of the meter.

In addition, <Patent Document 5> discloses an LPR device, which can be expected to expand parking facilities in idle areas through expansion of electric vehicle charging facilities, expansion of electric vehicle supply using this, and smartization of parking facilities by grafting electric vehicle charging functions to existing LPR devices. A parking management system using the same and a method of operating the system are provided.

However, the general electric vehicle charging system and the prior art as described above can efficiently charge electric vehicles using various methods. There is a disadvantage that it is impossible to promote the creation of a profit.

In addition, the general electric vehicle charging system and the prior art have the disadvantage that an expensive operating system and operating program must be installed in order to monitor and manage the status of the charger installed at the charging station, and it is also impossible for the charger operator to remotely control the charger. There are disadvantages.

In addition, since general electric vehicle charging systems and conventional technologies are unable to obtain power statistics to receive subsidies supported by local governments, the charger operator separately requests an agency or relies on KEPCO's power meter to process power statistics, so real-time accurate power statistics management There are also disadvantages that are difficult to achieve.

Korean Patent Laid-Open Patent No. 10-2011-0112738 (published on October 13, 2011) (Electric Vehicle Fast Charger) Republic of Korea Patent Publication No. 10-2011-0137675 (published on December 23, 2011) (Charging station capable of fast charging and charging capacity control of electric powered vehicles) Republic of Korea Patent Registration 10-1202814 (Registered on Nov. 13, 2012) (Quick Charger for Electric Vehicles) Republic of Korea Patent Publication 10-2016-0046483 (published on April 29, 2016) (Charging monitoring system for electric vehicles) Republic of Korea Patent 10-1729450 (2017.04.24. Announcement) (LPR device with electric vehicle charging device and vehicle number recognition function, parking management system using the same, and operating method thereof)

Therefore, the present invention has been proposed to solve the problems occurring in the general electric vehicle charging system and the prior art as described above, and by monitoring the electric power metering value of the electric vehicle charging station to check the usual usage and reduction potential, and to check the demand management company and the charging station The purpose of this is to provide an electric vehicle charging power demand management system that manages the demand for charging power through reduction contracts between operators to create revenue from power reduction, and to remotely control and manage the use of chargers at charging stations. have.

In order to achieve the above object, an "electric vehicle charging power demand management system" according to the present invention includes a charging means for charging an electric vehicle, measuring electric vehicle charging power and providing for demand management; The amount of charging power reduction is set according to the charging power for demand management provided by the charging means, the settlement procedure is performed according to the charging power reduction using the demand management settlement data provided by the KEPCO server, and the set charging power reduction amount a power exchange server requesting power reduction in accordance with the a demand management service provider server for requesting charger control according to a charging power reduction request provided from the power exchange server and a charging power reduction plan contracted with a charging station operator; It characterized in that it comprises a charging operation server for controlling the usage of the charger provided in the charging means in conjunction with the demand management business server.

The charging means includes a power supply for supplying charging power; a charging unit for charging an electric vehicle with power supplied through the power supply device according to a charging control signal; a KEPCO meter for measuring the amount of charging power used by the charging unit; a metering value monitoring unit for monitoring the charging power used by the charging unit; a control unit for controlling the charging of the charging unit according to the charging usage control transmitted from the charging operation server; A communication unit for transmitting the charging power metered value monitored by the metering value monitoring unit to the power exchange server and the demand management business server in conjunction with the control unit, and transmitting the charger usage control signal transmitted from the charging operation server to the control unit characterized in that

In the above, the charging means is characterized in that it is provided at a charging station where the electric vehicle charger is installed.

In the above, the power exchange server includes: a metering value input module for receiving a metered value of charging power transmitted from the charging means; a charging power reduction calculation unit for accumulating the measured values input through the weighing value input module in a predetermined unit, and calculating the charging power reduction by using the accumulated measured values; a charging power reduction requesting unit that transmits charging power reduction information to a demand management service provider server according to the charging power reduction calculated by the charging power reduction calculation unit to request a reduction in charging power; a demand management settlement data input module for receiving demand management settlement data transmitted through the KEPCO server; and a demand management settlement module for performing demand management settlement according to the demand management settlement data input through the demand management settlement data input module, and transmitting demand management settlement information to the demand management business server server.

In the above, the charging power reduction calculation unit is characterized in that it calculates the charging power reduction amount based on the amount of power in the time period when the power demand is high.

In the above, the demand management business server includes: a reduction information input module for receiving charging power reduction information transmitted from the power exchange server; a reduction contract setting module for setting a reduction contract obtained through a prior contract with a charging station operator; a weighing value input module for receiving a weighing value transmitted through the charging means; a charging information control module for generating charger control information according to the power reduction information input through the reduction information input module and a reduction contract set through the reduction contract setting module, and transmitting the generated charger control information to a charging operation server; and a demand management settlement module for distributing revenue with a charging operation server manager and a charging station operator using the demand management settlement information transmitted from the power exchange server.

The charging operation server includes: a charger control information acquisition unit for acquiring the charger control information transmitted from the demand management business server; Charging information acquisition unit for acquiring charging information through the demand management business server; a power statistics unit for generating power statistics information by processing power statistics for each charging station/charger based on the charging information obtained by the charging information obtaining unit; a situation analysis unit for each charger that analyzes the charging situation information for each charger obtained by the charging information acquisition unit; a power file generation unit generating the power statistical information generated by the power statistics unit as an unmodulated power file; a power information storage unit for storing the power statistics information or power file generated by the power statistics unit or the power file generation unit as power information in a charging information database; a power information transmission unit for transmitting the power file generated by the power file generation unit to the charging unit when the charging unit operator requests power information; A charging control unit that manages the charging means, performs a manager verification process when the charging means manager connects to a terminal, controls generation of a power file when power statistics information is requested, and controls charging of the charger based on the charger control information characterized in that

According to the present invention, power consumption is reduced by monitoring the electric power metering value of the electric vehicle charging station, checking the usual usage and reduction potential, and managing the charging power demand through setting the reduction amount at the power exchange and contracting the reduction amount between the demand management operator and the charging station operator. It has the advantage of being able to promote revenue generation according to it.

In addition, according to the present invention, there is an advantage that can remotely control and manage the charger usage of the charging station.

1 is an overall configuration diagram of an electric vehicle charging power demand management system according to the present invention;
Figure 2 is a block diagram of an embodiment of the charging means of Figure 1;
3 is a block diagram of an embodiment of the power exchange server of FIG. 1;
4 is a block diagram of an embodiment of the demand management provider server of FIG. 1;
5 is a block diagram of an embodiment of the charging operation server of FIG. 1 .

Hereinafter, an electric vehicle charging power demand management system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the present invention described below should not be construed as being limited to conventional or dictionary meanings, and the inventor may appropriately define the concept of terms in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents and It should be understood that there may be variations.

1 is an overall configuration diagram of an electric vehicle charging power demand management system according to a preferred embodiment of the present invention. It may include a charging operation server (500).

The charging means 100 is provided at a charging station where an electric vehicle charger is installed, charges an electric vehicle, measures electric vehicle charging power and provides it for demand management. An electric vehicle here means an electric bus.

Here, Demand Response refers to a series of planned activities to change the consumer's power consumption pattern in order to improve the load curve in a desirable direction for the purpose of efficient use of electrical energy. In the present invention, demand management is performed by changing the form of power consumption through load management according to the operation of the charger system of the charging station. In particular, demand management is performed by controlling the charger usage between 09:00 and 20:00, which is a time when power demand is high.

This charging means 100 is connected to the charging operation server 500 and the network through a network to control charging through remote control, and the charging station operator can reduce the charging power cost generated according to efficient charging control, which is a profit means distribution.

As shown in FIG. 2 , the charging means 100 includes a power supply unit 101 for supplying charging power, and a charging unit for charging an electric vehicle with power supplied through the power supply unit 101 according to a charging control signal. (102), the KEPCO meter 103 for measuring the amount of charging power used by the charging unit 102, the metering value monitoring unit 104 for monitoring the charging power used by the charging unit 102, the charging operation server 500 ), the control unit 105 that controls the charging of the charging unit 102 according to the charger usage control transmitted from the It may include a communication unit 106 that transmits to the server 300 and the demand management business server 400 , and transmits a charger usage control signal transmitted from the charging operation server 500 to the control unit 105 .

The power supply unit 101 is an AC-AC inverter that inverts the input AC power into a predetermined AC power and supplies it as slow charging power, and inverts the input AC power into a predetermined DC power and supplies it as fast charging power. An AC-DC inverter that converts DC power output from the AC-DC inverter into a predetermined DC power and supplies it as charging power, and a charging that controls the operation of the AC-AC inverter or AC-DC inverter It may include a mode control unit.

The metering value monitoring unit 104 may be said to be a device for measuring the amount of charging power, and a demand management company may install it in the charging means. The metered value monitoring unit 104 is actually connected to the KEPCO meter 103 to monitor the amount of electricity.

The power exchange server 300 sets the amount of charging power reduction according to the charging power for demand management provided by the charging means 100, and uses the demand management settlement data provided by the KEPCO server 200 to reduce charging power. It performs a settlement procedure according to the following, and serves to request power reduction to the demand management service provider server 400 according to the set amount of charging power reduction.

As shown in FIG. 3 , the power exchange server 300 receives the charging power meter value transmitted from the charging means 100 through the metering value input module 301 and the metering value input module 301 . The charging power reduction calculation unit 302 for accumulating the input measurement value in a certain unit and calculating the charging power reduction amount using the accumulated measurement value, the charging power calculated by the charging power reduction calculation unit 302 Receiving the demand management settlement data transmitted through the charging power reduction request unit 303 requesting the charging power reduction by transmitting the charging power reduction information to the demand management service provider server 400 according to the amount of reduction, and the KEPCO server 200 Demand management settlement data input module 304, performs demand management settlement according to demand management settlement data input through the demand management settlement data input module 304, and transfers demand management settlement information to the demand management business server 400 Includes a demand management settlement module 305 that transmits to

The charging power reduction calculation unit 302 may calculate the charging power reduction amount based on the amount of power in a time period when the power demand is high.

The demand management business server 400 serves to request the charger control according to the charging power reduction request provided from the power exchange server 300 and the charging power reduction plan contracted with the charging station operator.

This demand management business server 400 is a server operated by a demand management business operator that performs a contract according to the charging power reduction with the charging station operator. It creates revenue through the service, and plays a role in distributing the generated revenue with the charging operation server manager and charging station operator.

As shown in FIG. 4 , the demand management business server 400 obtains a reduction information input module 401 that receives the charging power reduction information transmitted from the power exchange server 300, and a pre-contract with the charging station operator. Power input through the reduction contract setting module 402 for setting one reduction contract, the measurement value input module 403 for receiving the measurement value transmitted through the charging means 100 , and the reduction information input module 401 . A charging information control module 405 that generates charger control information according to reduction information and a reduction contract set through the reduction contract setting module 402, and transmits the generated charger control information to the charging operation server 500, the power It may include a demand management settlement module 404 for distributing revenue with the charging operation server manager and the charging station operator using the demand management settlement information transmitted from the exchange server 300 .

The charging operation server 500 serves to control the usage of the charger provided in the charging means 100 in conjunction with the demand management business server 400 .

As shown in FIG. 5, the charging operation server 500 includes a charger control information acquisition unit 501 that acquires the charger control information transmitted from the demand management business server 400, and the demand management business server 400 A charging information acquisition unit 502 for acquiring charging information through, a power statistics unit for generating power statistical information by processing power statistics for each charging station/charger based on the charging information obtained from the charging information acquisition unit 502 (503), a situation analysis unit 504 for each charger that analyzes the charging situation information for each charger obtained by the charging information acquisition unit 502, and a power file that cannot modulate the power statistical information generated by the power statistic unit 503 Power information to store the power statistical information or power file generated by the power file generation unit 506, the power statistics unit 503 or the power file generation unit 506 generated as power information in the charging information database 509 The storage unit 508, the power information transmission unit 507 that transmits the generated power file to the charging unit 100 when the charging unit operator requests power information, manages the charging unit 100, and the charging unit manager It may include a charging control unit 505 that performs an administrator verification process when connecting to a terminal, controls generation of a power file when power statistics information is requested, and controls charging of a charger based on the charger control information.

In an embodiment of the present invention, the demand management operator server 400 and the charging operation server 500 are described as independent, but the present invention is not limited thereto, and the demand management operator server 400 and the charging operation server 500 are not limited thereto. can be implemented by integrating them into one charging control server. That is, the demand management company and the charging operation server manager can be implemented independently or can be implemented as a single company.

The operation of the electric vehicle charging power demand management system according to the preferred embodiment of the present invention configured as described above will be described in detail as follows.

First, the charging station operator makes a contract with the demand management company to reduce the amount of charging power in order to reduce the charging power cost through demand management according to the charging power reduction and promote profit. The demand management operator installs the metering value monitoring unit 104, which is a metering value monitoring device for managing the demand for charging power, at the charging station that has contracted with the charging station operator for reduction. Here, since the metering value monitoring unit 104 is connected to the KEPCO meter 103, it is preferable to install it after receiving permission to connect the watt-hour meter from KEPCO in advance.

Demand resource registration information for the charging station contracted for demand management is transmitted to the power exchange server 300 and registered as a demand resource management target. In this way, the data for demand resource settlement can be provided from the KEPCO server 200 only when it is registered as a demand resource management target in the power exchange server 300 (iSmart).

The metered value monitoring unit 104 of the charging means 100 installed in the charging station monitors the charging power usage measured through the KEPCO meter 103 as a metered value, and in a predetermined time unit (for example, 5 minutes), the power exchange server Send to 300.

The metering value input module 301 of the power exchange server 300 receives the metered value transmitted from the charging means 100 at a predetermined time unit and transmits it to the charging power reduction calculation unit 302 .

The charging power reduction calculation unit 302 normally accumulates a certain amount of power usage at the corresponding charging station, and calculates a possible power reduction based on the accumulated power usage. Here, the possible amount of power reduction is calculated by using information such as the power consumption from 09:00 to 20:00 on weekdays and the peak value of power usage for each time period. Here, the amount of power reduction possible can be calculated by assuming that the electric vehicle is mainly charged during 20:01 ~ 08:59, when the power consumption is low. That is, the amount of power reduction possible is calculated by controlling the amount of charger usage in the time period when the power usage is high, and reducing the power usage in the time zone when the power usage is high.

Next, the charging power reduction request unit 303 of the power exchange server 300 generates reduction information based on the power reduction calculated by the charging power reduction calculation unit 302 and sends it to the demand management service provider server 400 . transmit and request power reduction. Here, the duration of the power reduction may be appropriately set according to the number of chargers or power consumption of the charging station, and in the present invention, it is assumed that it is set to 1 hour. Here, in the case of standard demand management, the reduction duration can be 4 hours.

The reduction information input module 401 of the demand management provider server 400 that has been requested to reduce power receives the power reduction information and transmits it to the charging information control module 405 .

The charging information control module 405 controls the charger based on the power reduction information transmitted from the power exchange server 300 and the reduction contract information set in the reduction contract setting module 402 according to the reduction contract contracted in advance with the charging station operator. create information That is, the charger control information for controlling the charger usage according to the amount of power reduction is generated and transmitted to the charging operation server 500 .

The charger control information acquisition unit 501 of the charging operation server 500 acquires the charger control information for power reduction transmitted from the demand management business server 400 and transmits it to the charging control unit 505 .

The charging control unit 505 is connected to the charging unit 100 of the charging station through the network and transmits the charger usage control information to the charging unit 100 .

The communication unit 106 of the charging means 100 receives the charger usage control information transmitted from the charging operation server 500 and transmits it to the control unit 150, and the control unit 105 is based on the transmitted charger usage control information. The charging amount is reduced by controlling the charging unit 102 .

Here, the charging unit 102 is provided with a plurality of chargers, and each charger is connected to a charging port of an electric vehicle for charging. The charger and the charging port of the electric vehicle are usually connected by two ports. In this case, by controlling the charging of the two spheres to be charged with one sphere, it is possible to reduce the charging power.

As another method of reducing charging power, the control unit 105 may reduce charging power through the control of the power supply device 101 according to the received charger usage control information. For example, when it is assumed that the current power supplied from the power supply device 101 to the charging unit 102 is 100 kW, by controlling the output to be output as 80 kW, charging power reduction control is possible.

6 and 7 are examples of remotely controlling charging power of a charging station in the charging operation server 500 . By changing the charger state setting through the charger usage control information, remote charging power control becomes possible.

By reducing the charging power during the period of high power demand, it is possible to reduce the cost of using charging power.

This charging power reduction control is extended to the maximum during the late night time when the power consumption cost is low due to low power demand, so that the charging power cost can be reduced while the maximum charging is achieved.

In this process, the charging power is reduced by controlling the charger usage at the charging station.

On the other hand, the KEPCO server 200 checks the amount of electricity used at the charging station through the KEPCO meter 103 installed in the charging station, and based on this, generates data for demand management settlement for demand management settlement and periodically to the power exchange server 300 transmit Here, the amount of electricity is divided into the 09:00 ~ 20:00 power consumption when the power demand is high and the power usage in the late night time when the power demand is low. Therefore, data for demand management settlement can be generated using this information.

The demand management settlement data input module 304 of the power exchange server 300 receives the demand management settlement data provided through the KEPCO server 200 . Next, the demand management settlement module 305 calculates a profit corresponding to the power reduced according to the reduction request using the demand management settlement data, and transmits it to the demand management business server 400 .

The demand management settlement module 404 of the demand management business operator server 400 distributes the revenue generated in response to the reduction based on the reduction contract information previously agreed with the charging station operator to the charging station operator and the charging operation server manager.

Accordingly, the revenue generated by the reduction of charging power is appropriately distributed by the demand management operator, the charging operation server manager, and the charging station operator, thereby increasing the efficiency in demand management.

On the other hand, as another feature of the present invention, the charging operation server 500 is that the charger management of the charging station can be performed remotely.

That is, the charging information acquisition unit 502 of the charging operation server 500 is connected to the charging means 100 through a network or in conjunction with the demand management business server 400, etc., charging information transmitted from individual chargers of a plurality of charging stations , and the collected charging information is stored in a charging information database (DB) 509 after being classified for each charging station and each charger.

Since the charging information includes charging station and charger information, information can be classified by charger.

In addition, the condition analysis unit 504 for each charger analyzes the charging condition information for each charger by using the charging information obtained by the charging information obtaining unit 502 . For example, the charger is classified based on the charger-specific information, and status information of the classified charger is analyzed, ie, status information such as total charging time, monthly charging time, weekly charging time, and daily charging time. The situation analysis information for each charger analyzed in this way is accumulated and stored in the charging information database 509 . The accumulated situation analysis information for each charger can be utilized for an operator who operates a charger to efficiently use the operation of the charger in the future. For example, when the operating time of the charger becomes excessive, it can be used as operation information for additionally installing the charger, and when the monthly or annual operating time of the charger is short, it can be used as operation information to close the installed charger or move to another place.

On the other hand, when the manager connects using the manager terminal while managing the information of the charger in the above manner, the charging control unit 505 performs the manager's verification. Here, the manager connects to the charging operation server 500 by simply inputting only the ID and password (PW) through the network using the manager terminal.

When the ID and PW are input, the charging control unit 505 searches the list of registered administrators through this and verifies whether the registered administrator is correct. Here, an administrator may be assigned a rating. Grades can be given in the same form as grades 1, 2, and 3, and the highest grade, grade 1, can also be modified/registered by administrators. Grade assignment is a request for registration when registering an administrator in advance, and grade assignment is possible.

Then, if the verification result is correct, the manager waits for input. Here, after normal manager authentication, the manager can change the manager’s information or request modifications such as changing the manager, select a charger and request power statistics information, or select a vehicle number or route number and request power statistics information can

When a change of the manager is requested, the charging control unit 505 is a normally authenticated manager, and thus changes the manager's information. The manager's change request is possible only when the manager's level is 1st.

When a charger is selected and power statistics information is requested, the power statistics unit 503 searches the charging information database 509 to statistically process the charging power information of the corresponding charger. Here, the statistical processing of the charging power information statistically processes the charging time information of the corresponding charger on an annual, monthly, weekly, and daily basis. When the charger number is entered in the charger search window and the inquiry button is clicked, the current charging situation information of the corresponding charger is displayed on the screen of the manager terminal in real time in the situation analysis unit 504 for each charger under the control of the charging control unit 505. . Accordingly, the administrator can remotely check the charging status of the desired charger in real time using only the administrator terminal.

In addition, the manager may download the requested power statistics information as a file as described above.

That is, when the manager requests power information of specific power statistical information, the power file generation unit 506 works with the power statistics unit 503 to convert the corresponding power information into an unforgeable file to generate a power file. Here, a file that cannot be forged or altered is a file that cannot be edited after being downloaded by an administrator, and there may be various types of files. In the present invention, conversion to a PDF file will be described as an embodiment.

The generated power file in the form of a PDF file is downloaded to the manager terminal through the power information transmission unit 507 . The manager can utilize the downloaded charger power status information to increase the efficiency of power utilization or to use it for electric vehicle management. In addition, since the power file in the form of a PDF file cannot be forged or altered, it can be used as it is in applying for subsidies from local governments. In order to apply for subsidy from local governments, it was difficult for bus companies, etc. to manage the charging status in real time because they depend only on the electricity meter provided by KEPCO. By using it, the bus company can accurately manage the charging status of electric vehicles (especially electric buses) or power statistics in real time without establishing a separate operating program or operating system.

In addition, when a local government applied for a subsidy for electric vehicle operation, it was difficult for bus companies to manage the charging status, so they used an agency (agency) to apply for subsidy. However, in the present invention, since the bus company can manage power statistics and charging status by itself, it is possible to directly apply for a subsidy to the local government using this, so there is an effect of reducing the agency fee.

On the other hand, as another feature of the present invention, the manager can remotely control the charger using the manager terminal.

For example, the manager accesses the site of the charging operation server 500 using the manager terminal, logs in, and searches for a charger through the charger search screen when authentication is performed. When a specific charger is selected on the charger search screen, the real-time operating status of the corresponding charger is displayed. In this charger operating situation, the specific charger is selected and the operating status of the corresponding charger is set through the status setting screen. Here, the operation status setting is various, such as operation, stop operation, charging standby, charging, inspection, test, power off, operating time setting, charger reset, M2M terminal reset, RF card terminal reset, etc.

When the manager selects a specific operating state, a command for setting the operating state of the corresponding charger by the charging control unit 505 is transmitted to the charging means 100 through the power information transmitting unit 507 . Here, the power information transmission unit 507 includes a communication module capable of communicating with the charging means 100 .

When the control unit 105 of the charging means 100 receives a control command transmitted remotely, it controls the corresponding charger according to the control command. For example, if the received remote control command is power off, the power supplied to the charger is cut off to turn off the charger. This allows the charging station manager to achieve remote control of the charger in real time remotely.

According to the present invention, by monitoring the electric power metering value of the electric vehicle charging station to check the usual usage and reduction potential, and by setting the reduction amount at the power exchange and managing the demand for charging power through the contract for the reduction amount between the demand management operator and the charging station operator, It is possible to promote profit creation through power reduction. In addition, according to the present invention, it is possible to remotely control and manage the charger usage of the charging station.

Although the invention made by the present inventor has been described in detail according to the above embodiment, the present invention is not limited to the above embodiment, and it is common knowledge in the art that various changes can be made without departing from the gist of the present invention. It will be self-evident to those who have

100: charging means
101: power supply
102: charging unit
103: KEPCO meter
104: weighing value monitoring unit
105: control unit
106: communication unit
200: KEPCO Server
300: Power Exchange Server
301: weighing value input module
302: charging power reduction calculation unit
303: charging power reduction request unit
304: demand management settlement data input module
305: demand management settlement module
400: demand management service provider server
401: reduction information input module
402: reduction contract setting module
403: weighing value input module
404: demand management settlement module
405: charging information control module
500: charging operation server
501: charger control information acquisition unit
502: charging information acquisition unit
503: power statistics department
504: situation analysis unit for each charger
505: charging control
506: power file generation unit
507: power information transmission unit
508: power information storage unit
509: charging information database

Claims (7)

As a system for managing the demand for charging power of electric vehicles,
a charging means for charging an electric vehicle, measuring electric vehicle charging power and providing it for demand management;
Set the amount of charging power reduction according to the charging power for demand management provided by the charging means, and perform a settlement procedure according to the charging power reduction using the demand management settlement data provided by the KEPCO server that manages the power supply, and set a power exchange server that requests a power reduction according to one charging power reduction amount;
a demand management service provider server for requesting charger control according to a charging power reduction request provided from the power exchange server and a charging power reduction plan contracted with a charging station operator; and
Electric vehicle charging power demand management system, characterized in that it comprises a charging operation server for controlling the usage of the charger provided in the charging means in conjunction with the demand management business server.
The method according to claim 1, wherein the charging means is provided at a charging station where an electric vehicle charger is installed,
a power supply for supplying charging power; a charging unit for charging an electric vehicle with power supplied through the power supply device according to a charging control signal; a KEPCO meter for measuring the amount of charging power used by the charging unit; a metering value monitoring unit for monitoring the charging power used by the charging unit; a control unit for controlling the charging of the charging unit according to the charging usage control transmitted from the charging operation server; A communication unit for transmitting the charging power metered value monitored by the metering value monitoring unit to the power exchange server and the demand management business server in conjunction with the control unit, and transmitting the charger usage control signal transmitted from the charging operation server to the control unit Electric vehicle charging power demand management system, characterized in that.
The method according to claim 1, The power exchange server is a metering value input module for receiving the charging power metering value transmitted from the charging means; a charging power reduction calculation unit accumulating the measured values input through the weighing value input module in a predetermined unit, and calculating the charging power reduction by using the accumulated measured values; a charging power reduction request unit for requesting a reduction in charging power by transmitting charging power reduction information to a demand management service provider server according to the charging power reduction calculated by the charging power reduction calculation unit; a demand management settlement data input module for receiving demand management settlement data transmitted through the KEPCO server; Electric vehicle charging, characterized in that it comprises a demand management settlement module that performs demand management settlement according to the demand management settlement data input through the demand management settlement data input module, and transmits demand management settlement information to the demand management business server server Power demand management system.
The charging power demand management system of claim 3 , wherein the charging power reduction calculation unit calculates the charging power reduction amount based on the amount of power in a time period when the power demand is high.
The method according to claim 1, The demand management business server includes: a reduction information input module for receiving the charging power reduction information transmitted from the power exchange server; a reduction contract setting module for setting a reduction contract obtained through a prior contract with a charging station operator; a weighing value input module for receiving a weighing value transmitted through the charging means; a charging information control module for generating charger control information according to the power reduction information input through the reduction information input module and a reduction contract set through the reduction contract setting module, and transmitting the generated charger control information to a charging operation server; Electric vehicle charging power demand management system, characterized in that it comprises a demand management settlement module for distributing revenue with the charging operation server manager and the charging station operator using the demand management settlement information transmitted from the power exchange server.
The method according to claim 1, The charging operation server is a charger control information acquisition unit for acquiring the charger control information transmitted from the demand management business server; A charging control unit that manages the charging means, performs a manager verification process when the terminal is connected to the charging means manager, controls generation of a power file when power statistics information is requested, and controls the charger of the charging means based on the charger control information Electric vehicle charging power demand management system, characterized in that it comprises.
The method according to claim 6, The charging operation server is a charging information acquisition unit for acquiring charging information through the demand management business server; a power statistics unit for generating power statistics information by processing power statistics for each charging station/charger based on the charging information obtained by the charging information obtaining unit; a situation analysis unit for each charger that analyzes the charging situation information for each charger obtained by the charging information acquisition unit; a power file generation unit generating the power statistical information generated by the power statistics unit as an unmodulated power file; a power information storage unit for storing the power statistics information or the power file generated by the power statistics unit or the power file generation unit as power information in a charging information database; and a power information transmission unit for transmitting the power file generated by the power file generation unit to the charging unit when the charging unit operator requests power information.

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