KR102651936B1 - System and Method for Controlling Charging Power of Electric Vehicle Based on Demand Response - Google Patents

Abstract

The present invention provides compensation to participating customers (DR subscribers) when they participate in DR execution when charging the battery of an electric vehicle (EV) with a demand response (DR) module installed in accordance with a reliability DR issued when a power peak situation occurs. It relates to a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by implementing it.
When the charging power management system of the present invention receives a demand response (DR) order issued from the Korea Power Exchange, it transmits DR navigation along with the DR order to the DR contractor's terminal, and the DR contractor controls the DR module and DR control device. A system server that distributes DR compensation paid by the Korea Power Exchange to DR contractors when they participate in DR execution by charging the battery of an electric vehicle (EV) installed with DR; A DR module and DR control device that has a battery that is DR charged using a charger, receives a DR command through wireless communication with the system server, and transmits DR verification data to the system server when DR charging for the battery is completed. Multiple electric vehicles (EV) installed; and a plurality of DR contractor terminals for receiving DR navigation along with a DR issuance from the system server by wireless communication, wherein the DR contractor enters into a DR contract with the DR operator operating the system server and It is characterized by installing a DR module and DR control device in an electric vehicle (EV).

Description

Demand response-based electric vehicle charging power management system and method {System and Method for Controlling Charging Power of Electric Vehicle Based on Demand Response}

The present invention relates to a demand response-based charging power management system and method for electric vehicles (EV). In particular, in a power peak situation or renewable energy excess generation situation, internal demand response (DR) is provided according to the issuance of reliability DR or plus DR. When charging the battery of an electric vehicle (EV) with a module and DR control device installed, or when charging the battery of an electric vehicle (EV) using an electric vehicle charger (DR charger) with a demand response (DR) module and a DR control device installed, DR This relates to a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by generating and managing data that participated in the execution and providing compensation to participating customers (DR subscribers).

Since Korea's power grid is closed and renewable energy can only be supplied intermittently, there is no choice but to stabilize the power grid by applying demand response (DR) in a situation where the number of electric vehicles (EVs) is increasing exponentially.

As of 2019, it has a maximum power supply capacity of 90GW, and in order to increase this to 117GW, there are various factors such as depletion of construction sites for power plants, local residents' reluctance to accept power supply facilities, public opinion spreading concerns about the safety of nuclear power plants, and strengthening environmental regulations such as CO2. Due to various factors, it takes about 15 years.

Electric vehicles (EVs) drive an average of 40 km per day and consume 8 kwh of power per day. However, the supply of electric vehicles (EVs) is expected to increase to 4.5 million units by 2030, and an additional 36GWh/day of electricity is consumed to charge electric vehicles (EVs), so demand for expansion of power supply capacity is expected to increase rapidly, but the addition of power plants is expected to increase rapidly. Construction is unable to keep up with the increase in demand. Therefore, demand response to the supply of charging power for electric vehicles (EV) is practically impossible, so demand response (DR)-based charging power management for electric vehicles (EV) is required to limit the increased charging demand for electric vehicles (EV). .

Conventionally, the load of heating and cooling equipment, refrigerators, lighting, pumps, emergency generators installed in each general building, production facilities, lighting, and pumps installed in industrial companies, and lighting and pumps installed in apartment complexes were identified, and power saving targets were identified first. Power cut-off control is implemented during power peak situations.

Smart grid is an 'intelligent grid' that optimizes energy efficiency by allowing power suppliers and consumers to exchange real-time information in both directions by applying IT technology to the existing one-way power grid, which consists of 'generation-transmission, distribution-sales' stages. It refers to the ‘power grid’. The basic concept is that the entire power system operates efficiently as one body by connecting power plants, transmission, distribution facilities, and power consumers through an information and communications network and sharing information in both directions.

Countries around the world are accelerating the construction of smart grids to utilize limited energy resources more efficiently by bidirectionally sharing energy and information about it between energy suppliers and energy consumers, and through active two-way power management of smart grids. The existing simple supply-oriented energy policy is being converted to an energy demand management policy.

In terms of energy demand management, stabilizing power supply and demand is the most important issue, and the concept of demand response (DR) was introduced to reduce overall energy loss by using energy more efficiently.

Demand response (DR) means that energy consumers change their energy usage levels from their normal consumption patterns in response to various incentives. In order to induce such demand response, various policies have been proposed, such as providing incentives for reducing energy consumption or differentially charging electricity rates by time of day.

In particular, demand response (DR) is applied as a reliability DR corresponding to the expansion of power generation capacity on the supply side with the purpose of securing system reliability by transferring or suppressing peak loads in times of energy supply and demand emergencies, and also in normal times, when the electricity market price is It is being applied as an economical DR to replace relatively expensive generators with relatively high fuel costs and reduce overall energy production costs by reducing demand during very expensive times.

In the past, load management programs through the demand response (DR) market included opening a demand response (DR) market at Korea Electric Power Corporation (KEPCO), Korea Power Exchange (KPX), etc., and holding a demand response (DR) event in the demand response (DR) market. Various programs are being implemented to bid on demand response (DR) events with energy reduction through load management.

In order to further revitalize the demand response (DR) market and further increase overall energy use efficiency, it is necessary to discover resources in the demand response (DR) market. Electric vehicles (EVs), which are currently being distributed at a rapid pace, require charging for their operation. This is essential, and as the number of electric vehicles distributed increases in the future, the charging power of all electric vehicles is expected to take up a large portion in load management, so an effective load management plan for the charging power of electric vehicles (EVs) is needed, and this is called demand response (demand response). DR) We also need a plan to reflect it as a market resource.

In particular, charging of electric vehicles (EVs) is not carried out in a fixed place or at a set time, but is carried out at necessary times in various places such as homes, company buildings, and charging stations on the road, depending on the driving situation, so charging power is used for flexible mobility loads. There is a problem that it is not easy to induce demand response (DR) by creating a consumption pattern for energy use in static places.

Considering these conventional problems, Korean Patent Publication No. 10-2277853 (Patent Document 1) incorporates charging power for charging mobility loads such as electric vehicles, which are rapidly spreading, as a load management resource to provide demand response (DR). ) It suggests ways to manage with market resources.

In particular, in Patent Document 1, charging of mobility loads such as electric vehicles is not carried out in one designated place at a fixed time, but is carried out at necessary times in various undetermined places such as homes, company buildings, and charging stations on the road, depending on the driving situation. It is solving the problem that it is not easy to induce demand response (DR) by patterning the charging power use of mobile mobility loads such as electric vehicles into a consumption pattern for energy use in static places.

The method of managing a mobility load in Patent Document 1 is to charge the power provided from the power supply source and operate it as a driving energy source after obtaining the charging information according to the charging performance of the mobility load, which is obtained by the load management server (DRMS). , the load management server calculates the user power usage for the user account by reflecting the power usage based on charging information in the user account corresponding to the mobility load, and calculates the customer base load (CBL) for the user account based on the user power usage. is being calculated.

However, in Patent Document 1, power demand can be effectively identified by calculating user power usage and customer reference load (CBL) of mobility loads, but there is a problem in that management cannot be performed during power peak situations.

In addition, Korean Patent Publication No. 10-1602895 (Patent Document 2) states that while using consumers' renewable energy and small and medium-capacity ESS as demand response (DR) resources, it is possible to achieve a power peak distribution effect for each consumer and grouped consumers. By presenting a specific business model, a distributed ESS-based demand response service system that optimizes demand response (DR) services and enables power peak management to effectively operate each consumer's ESS is proposed.

Moreover, Korean Patent Publication No. 10-2019-0041265 (Patent Document 3) provides customized DR guide information optimized for power consumers based on the user's DR tendency, electricity use target budget, and inconvenience value, thereby helping power consumers A demand response guide provision system has been disclosed that can increase the DR participation rate of consumers compared to conventional DR by attracting interest in DR participation and providing effective DR guides to consumers who are active in DR participation or for whom DR participation is essential.

In addition, Korean Patent Publication No. 10-2021604 (Patent Document 4) states that fast demand response responds to a drop/return in grid frequency and blocks/injects high-speed demand response load resources in stages to provide new and renewable energy. A fast demand response resource operation system that dynamically responds to the intermittency and volatility of the system and uses stable power throughout the entire system by dynamically adjusting the system frequency by operating high-speed demand response resources according to the system frequency level. This is disclosed.

Meanwhile, it is expected that an increase in renewable energy will be inevitable as the world transitions to carbon neutrality.

In the case of Jeju Island, after the distribution of renewable energy centered on wind power began in 2015, wind power generation output control occurred during late night hours because power demand was less than during the daytime. Afterwards, the distribution of solar power was expanded to include output control during the daytime as well. In 2020, the acceptance limit of renewable energy is becoming more restrictive, with output limits increasing 77 times in Jeju Island.

The government is first introducing the plus (+) DR system to Jeju Island to reduce the output control situation of large-capacity wind power generation facilities due to excessive power supply.

Plus (+) DR is a system that matches supply and demand by increasing customers' power usage at specific times to stabilize the power system when power supply exceeds power demand due to an increase in renewable energy generation and compensates participating customers.

: Korean Patent Publication No. 10-2101509 : Korean Patent Publication No. 10-1602895 : Korean Patent Publication No. 10-2019-0041265 : Korean Patent Publication No. 10-2021604

The present invention was designed in consideration of these conventional problems, and its purpose is to charge the battery of an electric vehicle (EV) installed with a demand response (DR) module and DR control device in accordance with the reliability DR issued when a power peak situation occurs. The purpose is to provide a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by providing compensation to participating customers (DR subscribers) when they participate in DR implementation.

Another object of the present invention is to charge the battery of an electric vehicle (EV) using a DR charger equipped with a DR module and a DR control device in accordance with a reliability DR issuance, and when participating in DR execution according to the charging control of the DR charging control station, a DR charging station The purpose is to provide a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by providing compensation to business operators.

Another object of the present invention is to charge the battery of an electric vehicle (EV) at a location desired by the DR contractor using a portable DR charging device, and when participating in DR execution according to a reliability DR issued when a power peak situation occurs, participating customers ( The purpose is to provide a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by providing compensation to DR subscribers.

Another object of the present invention is to charge the battery of an electric vehicle (EV) using a public DR charging device installed in an apartment complex, and when participating in DR execution according to a reliability DR issued when a power peak situation occurs, participating customers (DR) The purpose is to provide a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by providing compensation to subscribers.

Another object of the present invention is to provide electric vehicles (EV) and DR modules with a DR module and DR control device installed when positive DR is issued to stabilize the power grid when power supply exceeds power demand due to an increase in renewable energy generation. And by charging the battery of an electric vehicle (EV) using a DR charger equipped with a DR control device, a public DR charging device installed in an apartment complex, or a portable DR charging device, electricity demand is transferred to a point where renewable energy generation increases. The goal is to provide a demand response-based electric vehicle (EV) charging power management system and method that can stabilize the power grid by suppressing power demand during peak loads.

Another purpose of the present invention is to develop a demand response-based electric vehicle (EV) system that can induce charging demand to areas with low charging load or areas with many chargers in no-load condition by region and time using DR navigation built using big data. )'s charging power management system and method.

Another object of the present invention is to provide a demand response-based electric vehicle (EV) charging power management system and method that can handle both reliability DR and positive DR.

According to one embodiment of the present invention, when the demand response-based charging power management system for electric vehicles (EVs) receives a demand response (DR) order issued from the Korea Power Exchange, it transmits the DR order to the DR contractor's terminal. A system server that distributes DR compensation paid by the Korea Power Exchange to the DR contractor when the DR contractor participates in DR execution by DR charging the battery of an electric vehicle (EV) on which the DR module and DR control device is installed; Multiple devices equipped with a battery that is DR charged using a charger and equipped with a DR module and DR control device that receives a DR command from the system server and transmits DR verification data to the system server when DR charging of the battery is completed of electric vehicles (EV); and a plurality of DR contractor terminals for receiving DR orders from the system server, wherein the DR contractor signs a DR contract with a DR business operator operating the system server and installs a DR module and DR in his or her electric vehicle (EV). It is characterized by installing a control device.

If the DR issuance is a reliable DR, the DR contractor can choose between DR charging and general charging with a penalty fee.

In addition, the DR charging includes continuous charging in which the charging point is postponed until after the end time of the DR issuance, limited charging in which the charging capacity or charging voltage of the electric vehicle (EV) battery is limited, and electric vehicle (EV) charging beyond a preset capacity. ) It may be that the battery has stopped charging.

Furthermore, when DR charging for the battery is completed, the DR module transmits DR verification data to the system server, and the DR verification data may include contractor ID, electric vehicle ID, charging location, and charging history data.

In addition, in the demand response-based charging power management system for electric vehicles (EV) according to the present invention, if the user proceeds with a DR contract and installs the DR module and DR control device on the DR contractor's own electric vehicle (EV), the DR contractor If you perform DR charging, you may be eligible for compensation based on the base fee and execution fee. Even if you do not participate in DR charging when the above DR is issued, you may be eligible for compensation based on the base fee. As mentioned above, compensating the base fee even if the electric vehicle (EV) installed with the DR module and DR control device is not running is to prevent unnecessary charging at a charging station to create DR charging history data.

The DR contractor terminal downloads and installs the app (APP) required to receive various information from the system server and guidance service text messages according to the DR issuance, and the user interface displayed according to the operation of the app (APP) is DR. It includes a navigation menu, and when the DR navigation menu is selected, a DR navigation that provides a pop-up window on the map that provides the address of a DR charging station capable of DR charging and a DR charging table may be displayed.

In this case, the user interface further includes a DR data menu, and when performing the DR charging, if the DR data menu is selected, DR verification data according to the DR charging may be displayed.

In addition, the DR navigation provides map information showing DR charging stations equipped with DR chargers capable of DR charging, and when the user designates one of the plurality of DR charging stations displayed on the map, the address of the DR charging station selected in the current state and DR charging are displayed. A pop-up window offering a table may be provided.

The demand response-based electric vehicle (EV) charging power management system according to the present invention is equipped with a DR charger that can select between DR charging and general charging for the electric vehicle (EV) battery when receiving a DR command from the system server. It further includes a DR charging station, wherein the DR operator enters into a DR contract with a DR charger operator operating the DR charging station and installs a DR module and a DR control device on the DR charger, and the DR module is used when DR charging is performed. DR verification data can be transmitted to the system server.

In addition, if the DR charger operator conducts a DR contract and installs a DR module and DR control device in the charger, if the DR charger operator participates in DR charging, it is subject to compensation based on the base fee and execution fee, and the DR Even if you do not participate in DR charging when issued, you may be eligible for compensation based on the basic rate, but a penalty may be imposed if you perform general charging using a DR charger with a DR module and DR control device installed.

In addition, the demand response-based charging power management system for electric vehicles (EV) according to the present invention further includes a DR charging control center that provides charging control services for the DR charging station, and the DR charging control center issues a DR from the system server. When receiving, the DR module and DR control device can remotely control the charging cutoff of the installed DR charger.

The DR charger includes a charger for charging a battery (BAT) of the electric vehicle (EV); A communication module capable of wireless communication with the system server; and a DR module that performs DR charging according to the selection of the electric vehicle (EV) user when receiving a DR command from the system server through a communication device and transmits DR verification data to the system server when DR charging is completed. and a DR control device for controlling DR charging of the DR charger according to control of the DR module.

The DR control device includes a power cutoff module to stop charging of an electric vehicle (EV) battery charged beyond a preset capacity; A continuous charging module that postpones the charging time until after the DR issuance end time; and a limiting charging module for limiting the maximum charging capacity or charging voltage of the electric vehicle (EV) battery.

Moreover, in the demand response-based charging power management system for electric vehicles (EVs) according to the present invention, DR charging in which charging is restricted according to a DR issuance from the system server is delayed charging by delaying the charging time until after the end time of the DR issuance. , the charging voltage of the battery is changed to low-voltage slow charging instead of high-voltage fast charging, or charging with a maximum charge amount limit that lowers the standard for the maximum charge amount of the battery, and stopping charging of an electric vehicle (EV) battery charged beyond a preset capacity. It could be any one.

When a DR is issued from the system server, a penalty may be imposed on the DR charger operator if charging of the battery is blocked and normal charging is performed using the DR charger instead of DR charging.

Additionally, if a user who does not have a DR contract visits a DR charging station when a DR is issued and participates in DR charging, he or she may be eligible for compensation for the discount rate service provided by the DR charging station.

In addition, the demand response-based electric vehicle (EV) charging power management system according to the present invention is installed in an apartment complex, receives a DR command through communication with the system server, and completes DR charging for the battery of the electric vehicle. It further includes a public DR charging device installed with a DR module that transmits DR verification data, and the electric vehicle user can enter into a DR contract with the DR operator who operates the system server.

In this case, a DR contractor who has entered into a DR contract while residing in an apartment building where the above-mentioned public DR charging device is installed is eligible for compensation based on the base fee and performance fee if he or she participates in DR charging when the DR is issued. Even if you do not participate in DR charging, you may be eligible for compensation based on the base rate.

Moreover, the demand response-based electric vehicle (EV) charging power management system according to the present invention is used in combination with a charger, receives a DR command through communication with the system server, and completes DR charging for the battery of the electric vehicle (EV). In this case, it further includes a portable DR charging device equipped with a DR module that transmits DR verification data to the system server, and the electric vehicle user can enter into a DR contract with a DR business operator that operates the system server.

In this case, the DR contractor who has entered into a DR contract and owns the portable DR charging device is eligible for compensation based on the base fee and execution fee if he or she participates in DR charging when the DR is issued, and participates in DR charging when the DR is issued. Even if you do not do so, you may be eligible for compensation based on the base fee.

In addition, if the user has entered into a DR contract but has not installed the DR module in the DR contractor's electric vehicle (EV), if the user visits the DR charging station and participates in DR charging when the DR is issued, he/she is eligible for compensation based on the execution fee. However, if you do not participate in DR charging, you are not eligible for compensation.

If the DR issuance is a plus (+) DR, the DR contractor may perform additional battery charging considering the current charge amount of the battery.

In addition, the DR issuance is a reliability DR generated to suppress power use during peak power situations when power demand exceeds power supply, and a plus (+) generated to encourage power use when power supply exceeds power demand. It can be any one of DR.

The method for managing the charging power of an electric vehicle (EV) based on demand response according to the present invention is that when a power peak situation is predicted to occur and a demand response (DR) command is transmitted from the Korea Power Exchange to the system server of the DR operator, the system server manages DR. Transmitting the DR order to the DR contractor terminal of the contractor; When receiving a DR order to the DR contractor terminal, the DR contractor participates in DR execution by DR charging the battery of an electric vehicle (EV) on which the DR module and DR control device are installed; Transmitting DR verification data from the DR module to the system server when DR charging of the battery is completed; When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange; Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; And in response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.

In addition, the method for managing the charging power of an electric vehicle (EV) based on demand response according to the present invention is when a power peak situation is predicted to occur and a demand response (DR) command from the Korea Power Exchange is transmitted to the system server of the DR operator, the system server transmitting the DR order to the DR contract terminal of the DR contractor; When receiving a DR order through the DR contractor terminal, the DR contractor participates in DR execution by DR charging the battery of an electric vehicle (EV) using a portable DR charging device equipped with a DR module and a DR control device; Transmitting DR verification data from the DR module to the system server when DR charging of the battery is completed; When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange; Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; And in response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.

The system server may further include transmitting DR navigation along with the DR issuance to the DR contract terminal of the DR contractor.

In addition, if the DR issuance is a reliable DR, the DR contractor selects between general charging with a penalty fee and DR charging with restrictions on charging, and the DR charging is postponed until after the end time of the DR issuance. sequential charging, where the charging voltage of the battery is low-voltage slow charging instead of high-voltage fast charging, or charging with a maximum charge amount limit that lowers the standard for the maximum charge amount of the battery, and charging suspension to block charging according to preset conditions. It can be any one of them.

Moreover, if the DR contractor participates in DR charging, he or she may be eligible for compensation based on the base fee and execution fee, and may be eligible for compensation based on the base fee even if he or she does not participate in DR charging when the DR is issued.

In this case, the DR business operator may be an electric vehicle manufacturer that conducts a DR contract at the same time as a sales contract for a new electric vehicle (EV) vehicle and installs and sells a DR module and DR control device in the new electric vehicle (EV) vehicle being sold. It may be a business operator that operates.

In the demand response-based charging power management method for electric vehicles (EVs) according to the present invention, when a power peak situation is predicted to occur and a demand response (DR) command is transmitted from the Korea Power Exchange to the system server of the DR operator, the system server jointly Transmitting the DR order to the DR contractor terminal of the DR contractor residing in the house; When receiving a DR order to the DR contractor terminal, the DR contractor participates in DR execution by DR charging the battery of an electric vehicle (EV) using a public DR charging device installed in the apartment complex; Transmitting DR verification data from the DR module to the system server when DR charging of the battery is completed; When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange; Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; And in response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.

In this case, if the DR contractor participates in DR charging when the DR is issued, he or she will be eligible for compensation based on the basic fee and execution fee. Even if he or she does not participate in DR charging when the DR is issued, he or she will be eligible for compensation based on the basic fee. You can.

In addition, the method for managing the charging power of an electric vehicle (EV) based on demand response according to the present invention is when a power peak situation is predicted to occur and a demand response (DR) command from the Korea Power Exchange is transmitted to the system server of the DR operator, the system server Transmitting the DR order to a DR charger in which a DR module and a DR control device of a DR charger operator are installed and a DR charging control center that provides charging control services for the DR charger; When the DR charging control center receives a DR command from the system server, remotely controlling one of DR charging in which charging of an electric vehicle (EV) battery by the DR charger is blocked and limited charging is performed; Transmitting DR verification data from the DR module to the system server when blocking and DR charging of the electric vehicle (EV) battery by the DR charger are completed; When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange; Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; And in response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.

In this case, if the DR issuance is a reliable DR, either general charging with a penalty fee and DR charging with charging restrictions are executed, and DR charging with the charging restrictions is performed after the end time of the DR issuance. Natural charging that postpones charging, low-voltage slow charging instead of high-voltage fast charging, charging that limits the maximum charge amount to lower the standard for the maximum charge amount of the battery, and charging that blocks charging according to preset conditions. It can be any of the middle fingers.

If the DR issuance is a reliable DR, a penalty may be imposed on the DR charger operator if normal charging is performed using the DR charger instead of blocking charging of the battery and DR charging.

As described above, in the present invention, when charging the battery of an electric vehicle (EV) installed with a demand response (DR) module and a DR control device internally in accordance with a reliability DR issued when a power peak situation occurs, when participating in DR execution The power grid can be stabilized by providing compensation to participating customers (DR subscribers).

In addition, in the present invention, when charging the battery of an electric vehicle (EV) using a DR charger equipped with a DR module and a DR control device in accordance with a reliability DR issuance, and participating in DR execution according to the charging control of the DR charging control center, the DR charging station operator The power grid can be stabilized by providing compensation to

In addition, in the present invention, when charging the battery of an electric vehicle (EV) at a location desired by the DR contractor using a portable DR charging device, if a participating customer (DR) participates in DR execution according to a reliability DR issued when a power peak situation occurs, the participating customer (DR) The power grid can be stabilized by providing compensation to subscribers.

Moreover, in the present invention, when charging the battery of an electric vehicle (EV) using a public DR charging device installed in an apartment complex, participating customers (DR subscribers) participate in DR execution according to the reliability DR issued when a power peak situation occurs. The power grid can be stabilized by providing compensation.

In addition, in the present invention, when a positive DR is issued to stabilize the power grid when power supply exceeds power demand due to an increase in renewable energy generation, an electric vehicle (EV) equipped with a DR module and DR control device, a DR module, and By charging the battery of an electric vehicle (EV) using a DR charger equipped with a DR control device, a public DR charging device installed in an apartment complex, or a portable DR charging device, power demand is transferred to the point where renewable energy generation increases, thereby reaching the peak. The power grid can be stabilized by suppressing power demand during load.

Moreover, in the present invention, when a reliability DR or plus (+) DR is issued, DR navigation built using big data is used to direct charging demand to areas with low charging load or areas with many chargers in no-load condition by region and time zone. If you participate in the implementation of Plus (+) DR, compensation can be provided to the DR charging station operator and participating customers (subscribers).

In the present invention, both reliability DR and positive DR can be handled by a demand response-based electric vehicle (EV) charging power management system.

1A and 1B are schematic block diagrams showing a demand response-based charging power management system for an electric vehicle (EV) according to the first and second embodiments of the present invention, respectively.
Figure 2 is a schematic block diagram showing the detailed configuration of the DR contractor terminal according to the present invention.
Figure 3 is a schematic block diagram showing the detailed configuration of an electric vehicle (EV) according to the present invention.
Figure 4 is a schematic block diagram showing the detailed configuration of the DR charger according to the present invention.
Figure 5 is a flowchart showing the procedure from the issuance of DR by the Korea Power Exchange to the DR contractor terminal among the demand response-based charging power management method for electric vehicles (EV) according to an embodiment of the present invention.
Figure 6 is a flowchart showing the execution procedure according to the issuance of reliability DR among the demand response-based charging power management method for electric vehicles (EV) according to an embodiment of the present invention.
Figure 7 is a flowchart showing the execution procedure according to the issuance of Plus DR among the demand response-based charging power management method for electric vehicles (EV) according to an embodiment of the present invention.
Figure 8 is a flowchart showing the DR settlement procedure among the demand response-based charging power management method for electric vehicles (EV) according to an embodiment of the present invention.
FIGS. 9A to 9I are examples showing types of data tables and data tables stored in a database of a system server according to an embodiment of the present invention.
Figure 10 is an example of a screen showing an issuance forecast following a DR issuance from the Korea Power Exchange (KPX).
Figure 11 shows an example of a DR charging table according to DR issuance.
Figure 12 is an example of a screen showing the DR charging navigation provided to the DR contractor when DR is issued.

Hereinafter, preferred embodiments according to the present invention will be described with reference to the attached drawings.

In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. Additionally, terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. Definitions of these terms should be made based on the content throughout this specification.

In terms of energy demand management, stabilizing power supply and demand is the most important issue, and the concept of demand response (DR) was introduced to reduce overall energy loss by using energy more efficiently.

Demand response (DR) means that energy consumers change their energy usage levels from their usual consumption patterns in response to various incentives. In order to induce such demand response (DR), various policies have been proposed, such as providing incentives for reducing energy consumption or differentially charging electricity rates by time of day.

In particular, demand response (DR) is applied as a reliability DR corresponding to the expansion of power generation capacity on the supply side with the purpose of securing system reliability by transferring or suppressing peak loads in times of energy supply and demand emergencies, and also in normal times, the electricity market price is It is being applied as an economical DR to replace relatively expensive generators with relatively high fuel costs and reduce overall energy production costs by reducing demand during very expensive times.

Load management programs through the demand response (DR) market are led by Korea Electric Power Corporation (KEPCO) and the Korea Power Exchange (KPX).

Korea Electric Power Corporation (KEPCO)'s load management program has a relatively long notice period, such as 2 months in advance or 5 to 1 day in advance, and the load characteristics include vacation, maintenance schedule adjustment, and summer peak for demand that requires an appropriate period of time. It is a designated period demand adjustment or weekly notice demand adjustment program to prepare for the expected occurrence period.

The Korea Power Exchange (KPX)'s load management program has a relatively short notice period, such as 1 day to 3 hours in advance or 1 hour in advance, and provides individual support for demand that can be applied immediately, such as electric vehicles (EV), in terms of load characteristics. Alternatively, the total of load management business operators operates a demand resource market or an intelligent demand management program targeting the amount of power that can be reduced by more than 300kW or more than 100kW, and a small subsidy is paid to DR contractors.

As mentioned above, Korea Electric Power Corporation (KEPCO), Korea Power Exchange (KPX), etc. have opened a demand response (DR) market and announced demand response (DR) events in the demand response (DR) market, thereby reducing the load on this. Various programs are being implemented to bid on demand response (DR) events based on energy reduction through management.

In order to further revitalize the demand response (DR) market and further increase overall energy use efficiency, it is necessary to discover resources in the demand response (DR) market. Electric vehicles (EVs), which are currently being distributed at a rapid pace, require charging for their operation. This is essential, and as the number of electric vehicles distributed increases in the future, the charging power of all electric vehicles is expected to take up a large portion in load management, so an effective load management plan for the charging power of electric vehicles is needed, which is called the demand response (DR) market. It is necessary to reflect it with resources.

The Korea Power Exchange (KPX) is an organization dedicated to the operation of Korea's electricity market and power system. Its functions include fair and transparent operation of the power market, stable and efficient operation of the power system, real-time power supply operation, and establishment of a basic plan for power supply and demand. I am in charge.

As mentioned above, the Korea Power Exchange (KPX) has a very short notice period of 1 hour in advance to prepare for power peak situations, and in terms of load characteristics, the total amount of power that can be reduced for demand that can be operated immediately is 100kW or more. An intelligent demand management program is being operated for load management operators, that is, demand response (DR) operators.

The demand response (DR) operator contracts with participating customers (users) such as multiple industries and production facilities, registers with the Korea Power Exchange (KPX), bids for the reduction amount every day and wins the reduction amount, and receives the reduction amount from the Korea Power Exchange (KPX). When there is a reduction order from ), the demand response (DR) operator requests participating customers (users) to reduce the amount, and when the settlement amount is paid by the Korea Power Exchange (KPX) according to the calculation of the reduction amount, the demand response (DR) business distributes the settlement amount to the participating customers (users). Do it.

Korea's demand resource trading market is largely composed of the Korea Power Exchange (KPX), demand management operators, and participating customers (electricity users), and provides peak reduction demand response (reliability DR) to prevent power outages and reduce maximum power, and reduce power supply costs. It is operated by dividing it into rate reduction demand response (economic DR).

The peak reduction DR, that is, reliability DR, replaces expensive generators that are urgently operated when a power supply order is issued 1 hour before reduction and the supply and demand situation changes suddenly. Reduction compensation is basic salary (capacity fee) + performance payment (highest variable cost). .

The above-mentioned participating customers (users) refer to electricity users (consumers) who use large-scale electricity such as industries and production facilities. Therefore, electric vehicles (EVs) that require small-scale charging, which are currently being distributed at a rapid pace, do not fall under the above-mentioned participating customers (users).

In the present invention, the charging amount of individual electric vehicle (EV) batteries is small, but the battery charging power of the entire electric vehicle (EV), which requires charging in the millions, requires effective load management and the charging power limit of charging stations in areas where DR is issued is limited. It was designed based on its great effect on reduction.

In the present invention, in order to perform the role of a demand response (DR) operator according to the demand management program operated by the Korea Power Exchange (KPX), charging power management of a demand response (DR)-based electric vehicle (EV) as shown in Figure 1a Operate the system 1000.

Referring to Figure 1a, the demand response (DR) based electric vehicle (EV) charging power management system 1000 according to the first embodiment of the present invention includes the Korea Power Exchange (KPX) 100, a system server 200, It includes an administrator terminal (400), a DR contractor terminal (500), an electric vehicle (EV) (600), and a DR charger (701).

The electric vehicle (EV) 600 according to the present invention has a built-in battery (BAT) 630 composed of a rechargeable secondary battery, and any vehicle that is driven using this can be used as a passenger car, bus, forklift, or truck, etc., regardless of the purpose. All are applicable.

First, the Korea Power Exchange (KPX) (100) is an organization in charge of Korea's electricity market and power system operation. It operates a demand management program for stable operation of the power system and provides power cutoff control during power peak situations. In order to transmit the DR issuance to the demand response (DR) contractor to the system server 200 of the demand response (DR) operator, the DR of the demand response (DR) contractor's electric vehicle (EV) (600) and DR charger (701) When verification data is received from the system server 200, compensation to the demand response (DR) contractor can be performed.

The Korea Power Exchange (KPX) 100 is equipped with a database, and the database includes a DR issuing table 110 and a DR reporting data table 120.

The DR issuing table 110 includes a DR time data table 112 that stores DR issuing forecast data and DR issuing data (i.e., DR issuing date, DR issuing start time, and DR issuing end time data) and DR issuing scale data. It includes a DR scale data table 114 for storing.

The DR reporting data table 120 stores DR operator ID, event ID, revision number, event start time, event duration, reduction amount data, etc.

The DR business operator installs the DR module 620 and the DR control device 650 in his/her electric vehicle (EV) 600 and operates on the date and time set according to the DR order from the Korea Power Exchange (KPX) 100. Demand response (DR) contractors can be recruited who have accepted a contract agreeing to control charging. In this case, it is of course possible for the DR module 620 and the DR control device 650 to be implemented as a single DR module device.

In this case, the DR contractor can access the homepage provided by the system server 200 of the charging power management system 1000 according to the present invention or download the DR contractor terminal APP to perform a user registration procedure.

In addition, the DR operator can recruit DR charger operators who operate the DR charger 701 with the DR module 720 and the DR control device 740 installed in the charger, and the DR charger operator can operate the system server 200. You can access the homepage and perform the DR charger registration process for the DR registered DR charger (701) or perform the registration process with a separate contract. In this case, it is of course possible for the DR module 720 and the DR control device 740 to be implemented as a single DR module device.

In this case, the DR charger operator has both a DR charger (701) installed with a DR module (720) installed in the charger and a general charger (702) that does not have a separate DR module (720) installed at its DR charging station (700). Accordingly, depending on the choice of the electric vehicle charger user, either DR charging or general charging can be selected.

Moreover, the DR charger business operator or electric vehicle manufacturer directly applies for registration with the Korea Power Exchange (KPX) as a demand response (DR) business operator according to the demand management program operated by the Korea Power Exchange (KPX) and obtains DR business qualification. It is also possible to use the charging power management system 1000 according to the present invention shown in FIG. 1A to perform the role as a DR operator.

In this case, the DR charger operator installs the DR module 720 and DR control device 740 in the charger it owns and connects to the homepage of the system server 200 or enters the DR module 720 through a separate contract. The DR charger registration procedure can be performed for the installed DR charger 701.

In addition, the DR charging station 700, which charges electricity to the battery 630 of the electric vehicle (EV) 600, has a plurality of gas stations similar to gas stations that charge oil for internal combustion engine vehicles and gas station management companies that manage these gas stations. It is connected to the DR charging control center (management server) 760, which provides charging control services for the DR charging station 700.

In this case, when the DR charging control center (management server) 760 receives a DR command from the system server 200, the DR charger 701 on which the DR module 720 and the DR control device 740 are installed is connected to the DR charging control center. It is also possible to remotely control the DR charger 701 based on the overall power that can be supplied by the (management server) 760.

The DR charging control center (management server) 760 generally provides electricity for the battery 630 of the electric vehicle (EV) 600 by a plurality of DR chargers 701 and chargers 702 installed at the DR charging station 700. When charging occurs, a network is provided to remotely manage metering and billing. In addition, the DR charging control center (management server) 760 performs limited charging, continuous charging, and charging suspension as shown in FIG. 6 through the DR control device 740 when DR charging is performed for the DR charger 701. Remote control, etc. can be performed.

In addition, when an electric vehicle manufacturer that has acquired DR business qualification sells a new electric vehicle (EV), it enters into a DR contract with the buyer at the same time as the sales contract for the new electric vehicle (EV), and if the buyer agrees to the DR contract, it sells the new electric vehicle (EV). The DR module (620) and DR control device (650) can be installed and sold in new electric vehicles (EV) (600). In this case, the electric vehicle manufacturer or user (vehicle owner) can access the homepage provided by the system server 200 or perform a user registration procedure through a separate contract.

In this case, it is possible for an electric vehicle manufacturer that has acquired DR business qualification to receive compensation by dividing the DR base fee and DR execution fee between the user (vehicle owner).

If a DR contractor participates in issuing a DR from the Korea Power Exchange (KPX), the basic settlement amount provided as compensation may be distributed between the DR business operator and the DR contractor at a ratio of, for example, 5:95.

Meanwhile, when an electric vehicle manufacturer ships the first electric vehicle (EV), it sells an electric vehicle (EV) model with the DR module 620 and DR control device 650 installed in the vehicle's charging device, and the buyer, the owner, has an option. You can choose a DR contract.

In this case, a business model in which the electric vehicle (EV) 600 installed with the DR module 620 and the DR control device 650 participates in DR in a forced execution method when DR is issued can be configured.

An electric vehicle manufacturer that sells an electric vehicle (EV) 600 equipped with this forced execution type DR module 620 and DR control device 650 can also serve as a DR business operator. In this case, local government ordinances and government policies are needed to determine the scale and linkage of subsidy support.

Moreover, in the present invention, when a user (vehicle owner) purchases an electric vehicle (EV) from an electric vehicle manufacturer or a used market, a DR contract with the owner is made according to the DR proposal of the electric vehicle manufacturer or a used market, and the electric vehicle (EV) (600) ), the user (borrower) can access the homepage provided by the system server 200 or perform a user registration procedure through a separate contract.

In addition, a user who uses an electric vehicle (EV) without a DR contract purchases the DR module (620) and DR control device (650) from a DR module manufacturer or dealer and then installs the DR module (620) and DR control device (650) in his or her electric vehicle (EV). The DR control device 650 can be installed and the user registration process can be performed by accessing the homepage provided by the system server 200 or through a separate contract.

The system server 200 is a system server 200 of the charging power management system 1000 operated by the demand response (DR) operator for DR management, and runs the communication device 210 and the control program 222. It includes a processor 220.

The system server 200 installs the Korea Power Exchange 100, the DR contract terminal 500, the DR module 620, and the DR control device 650 through a wireless and/or wired communication network using the communication device 210. Communication can be made with an electric vehicle (EV) 600, a DR charger 701 equipped with a DR module 720 and a DR control device 740, and a DR charging control center 760.

The processor 220 performs procedures according to the control flow shown in FIGS. 5 to 8 as it executes the control program 222, and when the user (contractor) connects to the system server 200, the user (contractor) A homepage may be provided so that user registration procedures can be performed.

The database 300 provided in the system server 200 includes a DR data table 310 and a data table 320.

The DR data table 310 stores DR-related data and includes a DR issuing data management table 327 and a DR verification data management table 328 shown in FIGS. 9G and 9H, respectively.

The data table 320 includes the electric vehicle (EV) 600, DR module 720, and DR control device 740 installed with the DR contractor terminal 500, DR module 620, and DR control device 650. It stores various registration data necessary to manage the installed DR charger 701, and the charging station management table 321, charger management table 322, and charging history management table 323 shown in FIGS. 9A to 9F, respectively. , it is equipped with an electric vehicle (EV) management table (324), a DR module management table (325), and a contractor management table (326).

In this case, the data table 320 includes a charger event management table, an electric vehicle event management table, a charger photo/electric vehicle photo management table, an environment settings management table, a DR navigation management table, a personal information registration table, and a user (contractor) table, as needed. It may further include a connection history management table, etc.

Data input according to the user registration procedure is recorded in the general data table 320 of the database 300, and DR-related data is recorded in the DR data table 310.

DR order-related data from the Korea Power Exchange (100) is recorded in the DR order data management table 327 of the DR data table 310 shown in FIG. 9g, and the DR module 620 and DR control device 650 The DR verification data input from the electric vehicle (EV) 600 installed, the DR module 720, and the DR charger 701 installed with the DR control device 740 are the DR data table 310 shown in FIG. 9h. is recorded in the DR verification data management table 328.

The charging station management table 321 shown in FIG. 9A includes, for example, sequence number, charging station name, charging station GPS latitude, charging station GPS longitude, charging station address, charging station type, available start time, available end time, change date, and whether to delete. , including the date of deletion.

The charger management table 322 shown in FIG. 9B includes, for example, sequence number, charging station ID, charger method, charger input, charger output, charging speed, paid/free charger, charger manufacturing date, charger IP address, charger serial number, charger Manufacturer, charger model name, charger firmware version, SIM card unique serial number, international mobile subscription identifier, charging station electricity supply type, charging station electricity supply number, charger status (0: not connected, 1: not available, 2: available, 3: (in use), charger status change date and time, total charge amount, registration date, change date, deletion status, and deletion date.

The charging history management table 323 shown in FIG. 9C includes, for example, sequence number, vehicle ID, charger ID, vehicle identification number, charging method, charge amount before charging, charge amount after charging, SOC before charging, SOC after charging, and charging start time. , includes charging end time, charging time, deletion status, and deletion date.

The electric vehicle (EV) management table 324 shown in FIG. 9D includes, for example, serial number, vehicle name, vehicle number, vehicle identification number, owner, DR status, vehicle color, date of manufacture, date of purchase, charging method, manufacturer, and model. , includes the date of change, whether or not it was deleted, and the date of deletion.

The DR module management table 325 shown in FIG. 9E includes, for example, a sequence number, DR module ID, vehicle ID, charger ID, DR module IP address, DR module serial number, DR module model name, and DR module firmware version. there is.

The contractor management table 326 shown in FIG. 9F includes, for example, sequence number, user ID, user password, password SALT, user name, user authority, user photo, contact information, date of birth, email, gender, subscription date, password change date, It includes login failure, approval status, deletion status, and deletion date.

When storing information in a database, some information must be encrypted and stored. In particular, the law stipulates that personal information such as passwords and bio information must be encrypted.

In the above password SALT, Salt is a random value used to compensate for the vulnerability of the one-way encryption algorithm when encrypting the password and is hashed together with the password.

The DR order data management table 327 shown in FIG. 9g includes, for example, sequence number, DR order start time, DR order end time, DR order ID, DR order scale (level), and DR order event (phrase). Includes remarks.

The DR verification data management table 327 shown in FIG. 9H includes, for example, sequence number, remark, [DR issuance data management] linkage, and [charge history management] linkage.

The manager terminal 400 connects to the system server 200 by the DR provider to check and monitor the operating status of the system server 200, or provides DR charging navigation data to the DR contractor terminal 500 when a DR is issued. Use when uploading.

As shown in FIG. 2, the DR contract terminal 500 is a terminal used by a DR contractor, and is a personal computer (PC) or a PC capable of connecting to a wireless and/or wired communication network using a communication device 510. It may be a mobile device, and the mobile device may be, but is not limited to, a laptop computer, a smartphone, or a personal digital assistant (PDA).

Referring to FIG. 2, the DR contractor terminal 500 is equipped with a communication device 510, a processor 520, and a user interface (UI) 530.

The user (DR contractor) downloads and installs the app (APP) 522 required to receive various information from the system server 200 related to the DR contract and guidance service text messages according to DR issuance on the DR contract terminal 500. You can.

The user interface 530 includes a DR navigation menu 532 and a DR data menu 534.

In this case, when the user (DR contractor) operates the app (APP) 522, the processor 520 runs the app (APP) 522 and displays the user interface 530 on the display 540, and the user When the DR navigation menu 532 is selected, the DR navigation 750 shown in FIG. 12 is displayed on the display 540 of the terminal.

The DR navigation 750 provides map information showing a DR charging station 700 where a DR charger 701 capable of DR charging is installed. In this case, when the user designates one of the plurality of DR charging stations 700 displayed on the map, the address of the DR charging station 700 for the DR charger 701 capable of DR charging installed at the selected DR charging station 700 in the current state A pop-up window 751 providing 752 and DR charging table 753 is provided.

Accordingly, the user searches for other DR charging stations 700 displayed on the DR navigation 750 and selects the DR charging station 700 where the desired DR charger 701 is located, considering the distance from the user's location and the billing fee among the displayed DR charging stations. ) can be selected to perform DR charging.

As described above, when the user designates one DR charging station 700, the DR navigation 750 serves as a navigator that guides the user from the user's current location to the designated DR charging station 700.

In this case, the DR navigation 750 may provide not only the DR charging station 700 to which the DR fee is applied according to the DR issuance, but also charging stations and charging fees in areas where the DR issuance is not applied.

Meanwhile, when a user (DR contractor) performs DR charging, the DR contract terminal 500 can check DR verification data according to DR charging by selecting the DR data menu 534 provided in the user interface 530. there is.

Figure 11 shows an example of a DR charging table according to DR issuance.

As shown in Figure 11, it can be seen that the DR charging table provides different rates depending on time and region.

For example, in the 13:00~15:00 time zone, 900 won, which is cheaper than the basic rate (average rate) of 1,300 won, is applied, and in the 22:00~02:00 time zone, 1,500 won, which is more expensive than the basic rate (average rate), is applied. You can see that the lowest price of 700 won is applied during the 02:00~04:00 time period, which is the lowest price compared to the basic rate (average rate).

In other words, a higher rate than the basic rate (average rate) is applied during the golden hour, that is, the time zone that users use the most, that is, from 22:00 to 02:00, and a discounted rate is applied for times other than the golden hour. Differentiated application of charging rates by time slot can disperse the concentration of charging times.

As shown in FIG. 3, the electric vehicle (EV) 600 includes a communication module 610, a DR module 620, a battery (BAT) 630, and a battery management system (BMS) that can be connected to a wireless communication network. ) (640) and a DR control device (650).

The communication module 610 is responsible for wireless communication with the system server 200, and the DR module 620 charges the EV user when receiving a DR command from the system server 200 through the communication module 610. DR charging is performed according to option selection, and when DR charging is completed, DR verification data is transmitted to the system server 200, and the DR control device 640 controls DR charging according to the control of the DR module 620. do.

If a user signs a DR contract directly with a DR business operator or makes a DR contract while purchasing an electric vehicle (EV) through an electric vehicle manufacturer or other channels, the DR module 620 and DR control device 650 can be installed inside the vehicle. there is.

The battery (BAT) 630, which is basically provided in the electric vehicle (EV) 600, includes at least one battery module and a battery management system (BMS) 640 within the battery pack. The battery (BAT) 630 is a general term for a battery pack, a battery module, and a battery cell, and can be applied to any battery that consists of a rechargeable secondary battery.

The battery management system (BMS) 640 performs a function of controlling the operation of each of the plurality of battery cells included in the battery pack, for example, preventing overload of the battery cells through voltage balancing of the battery cells. Battery cell management function to prevent overcharging, charge state prediction function to predict the state of charge (SOC) by sensing the current, voltage, and/or temperature of each battery cell, and power to prevent overcharge and overdischarge of each battery cell. It may include a limiting function, a diagnostic function to diagnose failure of the battery pack and battery cells, and a cooling control function to cool the heat generated by the battery pack.

In the present invention, it is desirable to configure the DR module 620 and DR control device 650 installed in the electric vehicle (EV) 600 to operate in conjunction with the BMS 640 described above. For example, the battery (BAT) 630 installed in the electric vehicle (EV) 600 must be charged and discharged under the control of the battery management system (BMS) 640.

Therefore, the DR module 620, which serves as a window for charging (in case of reliable DR) and discharging (in case of plus DR) for the battery (BAT) 630, prevents overload of the battery cell, predicts the state of charge, and monitors the battery cell. It is desirable to operate in conjunction with a battery management system (BMS) 640 that prevents overcharge and overdischarge, diagnoses battery cell failure, and performs cooling control functions.

Moreover, when an electric vehicle manufacturer manufactures an electric vehicle (EV) 600, the DR module 620 and DR control device 650 are installed to operate in conjunction with the battery management system (BMS) 640 from the beginning, or When the DR module 620 and DR control device 650 are additionally installed in the future, they can be designed so that they can be easily linked with the battery management system (BMS) 640.

When a reliability DR is issued, the DR contractor (user) stops charging the electric vehicle (EV) battery 630 charged beyond the preset capacity, postpones the charging time until after the DR issuance end time, and performs natural charging and charging of the electric vehicle. The battery 630 can be charged by selecting one of the charging options of the (EV) battery 630's charging capacity or limited charging where the charging voltage is limited.

To this end, the DR control device 650 includes a power cutoff module 652 to stop charging of the electric vehicle (EV) battery 630 charged beyond a preset capacity, and charges by delaying the charging time until after the DR issuing end time. It includes a natural charging module 654 and a limiting charging module 656 for limiting the charging capacity or charging voltage of the electric vehicle (EV) battery 630.

In addition, even if the reliability DR is issued, the DR contractor (user) does not select one of the charging options among stopping charging, natural charging, and limited charging of the electric vehicle (EV) battery 630 according to the DR charging, and a penalty is imposed. It is also possible to select regular charging.

Referring to FIG. 4, the DR charger 701 includes a communication device 710, a DR module 720, a charger 725, a display 730, and a DR control device 740 that can be connected to a wireless communication network. It is available.

The DR charger 701 is a general charger 725 for charging the battery (BAT) 630 of an electric vehicle (EV) 600, and a communication device 710 that allows wireless communication with the system server 200. ), when a DR command is received from the system server 200 through the communication device 710, DR charging is performed according to the EV user's selection, and when DR charging is completed, DR verification data is transmitted to the system server 200. DR module 720, a display 730 to inform the EV user of the status of DR charging when the DR charging is selected, and DR charging of the DR charger 701 according to the control of the DR module 720. It further includes a DR control device 740 for control.

When a reliability DR is issued, the DR charger operator stops charging the electric vehicle (EV) that was charging right before the DR is issued according to the electric vehicle user's charging option selection, and stops charging the electric vehicle (EV) whose battery 630 is charged beyond the preset charging capacity. ), and when the total power usage of the DR charging station (700) exceeds the previously agreed upon amount of power, one of the charging stops of the DR charger (701) is stopped under the control of the DR charging control center (760), and charging time. Battery 630 can be charged by selecting one of the following charging options: natural charging, which is postponed until after the end time of the DR issuance, and limited charging, which is low-speed charging according to the maximum charging capacity or charging voltage limit of the electric vehicle (EV) battery 630. can be charged.

To this end, the DR control device 740 includes a power cutoff module 742 to stop charging of the electric vehicle (EV) battery 630 charged beyond a preset capacity, and charges by delaying the charging time until after the end time of the DR issuance. It includes a natural charging module 744 and a limiting charging module 746 for limiting the maximum charging capacity or charging voltage of the electric vehicle (EV) battery 630.

DR charging according to the present invention includes the above-mentioned charging stop, natural charging, and limited charging, and even if the reliability DR is issued, the electric vehicle user has one of the charging options among charging stop, natural charging, and limited charging according to the above-mentioned DR charging. If you select normal charging without selecting and charge the battery 630 using the DR charger 701, a penalty may be imposed on the DR charger operator.

Additionally, general EV users without a DR contract can perform DR charging using the DR charger 701 at the DR charging station 700. At this time, the DR charging station 700 can encourage DR charging by offering a discount rate to general EV users without a DR contract.

In this case, the DR charger 701 may be connected to the DR charging control center (management server) 760, which provides charging control services for the DR charging station 700, and the DR charging control center (management server) 760 When receiving a DR command from the system server 200, it can control the DR module 720 under the management of the DR charging control center 760 and the DR charger 701 on which the DR control device 740 is installed.

That is, when DR charging is performed on the DR charger 701, the DR charging control center (management server) 760 performs limited charging, continuous charging, and charging suspension as shown in FIG. 6 through the DR control device 740. Remote control, etc. can be performed.

Meanwhile, the demand response (DR)-based electric vehicle (EV) charging power management system 1000 according to the first embodiment of the present invention is as shown in FIG. 1A, and the DR business operator owns the electric vehicle (EV) 600. Proceed with a DR contract with an individual user to install a DR module (620) on an electric vehicle (EV) (600), or operate a DR charging station (700) equipped with a DR charger (701) with a DR module (720) installed. DR charger operators are being recruited as DR contractors, and the electric vehicle (EV) 600 and DR charger 701 are connected to the system server 200 through a wireless communication network.

However, the demand response (DR)-based electric vehicle (EV) charging power management system 1000 according to the present invention, as in the second embodiment shown in Figure 1b, allows electric vehicles ( It is also possible to enter into a DR contract with an individual user who owns EV (600).

In this case, the DR contractor who has signed a DR contract can receive a DR order from the system server 200 by registering his terminal as the DR contract terminal 500 in the system server 200 in the same manner as in the first embodiment. do.

In the second embodiment shown in Figure 1b, instead of installing the DR module 620 in the electric vehicle (EV) 600, a public DR charging device is installed by replacing at least one of a plurality of public chargers provided in the parking lot of an apartment complex. It is also possible to install 623 and perform DR charging on the batteries 630 of a plurality of electric vehicles (EV) 601 without the DR module 620 installed.

The common DR charging device 623 is equipped with a DR module device including a DR module and a DR control device, and is connected to the system server 200 through a wireless or wired communication network through a communication module 610, thereby enabling the system server 200 ), and when a DR is issued, DR charging is performed according to the DR contractor's selection, and when DR charging is completed, it transmits DR verification data to the system server 200.

In this case, the public DR charging device 623 installed in the public charger provided in the parking lot of the apartment complex serves as a public DR charger.

Additionally, in the second embodiment shown in FIG. 1B, instead of installing the DR module 620 in the electric vehicle (EV) 600, a portable DR charging device 621 is installed whenever charging of the battery 630 is required. DR charging can be performed using DR. The portable DR charging device 621 can be configured by combining a DR module device including a DR module and a DR control device with a typical charger. A typical charger and a DR module device may have a detachable combination structure.

In this case, the user using the portable DR charging device 621 signs a DR contract and registers his/her terminal as a DR contract terminal 500 on the system server 200 by performing a user registration procedure. ), it is possible to receive DR orders from.

The portable DR charging device 621 has a wireless communication device inside the DR module device necessary to connect to the system server 200 and a wireless communication network, and wirelessly receives a DR command from the system server 200, When issuing a DR, a DR charging operation method is implemented according to the DR contractor's selection, and when DR charging is completed, DR verification data is transmitted to the system server 200.

The operation of the demand response (DR) based electric vehicle (EV) charging power management system 1000 according to the present invention configured as described above will be described with reference to FIGS. 1A to 12.

In general, the power demand pattern during daytime hours in industrial areas shows that the first power peak occurs between 9:00 AM and 12:00 PM, and the second power peak occurs between 1:00 PM and 5:00 PM.

In addition, the power demand pattern during summer time in industrial areas is such that the first power peak occurs between 10 AM and 11 AM, and the second power peak occurs between 2 PM and 5 PM.

Moreover, the power demand pattern during winter time in industrial areas is such that the first power peak situation occurs significantly between 10 AM and 12 PM, and the second power peak situation also occurs significantly between 5 PM and 7 PM.

The electricity demand pattern in residential areas shows a significant power peak situation occurring at night between 7 PM and 12 PM.

In addition, the electricity demand pattern in residential areas has a pattern in which heating power demand rapidly increases in the morning between 7 and 8 am in January, and cooling power demand rapidly increases between 6 and 10 pm in August.

In the existing DR business, “electricity consumption pattern verification (RRMSE: Relative Root Mean Squared Error)” must be conducted first in order to register customers at the Korea Power Exchange, but in the case of electric vehicles (EVs), customer registration is possible because charging is patterned. .

The pattern of electric vehicle (EV) charging power by time by region in Korea and the pattern of electric vehicle (EV) charging power by season/use (public, residential, commercial) have been published in a paper, and based on the published data, the pattern has been published in summer and winter. It can respond to power peak values.

In other words, since the patterning of electric vehicle (EV) battery charging has already been proven, it is possible to predict DR power demand and stably respond to the Korea Power Exchange's reduction/consumption instructions based on patterned data.

First, the Korea Power Exchange (100) predicts DR issuance 1 hour in advance in preparation for power peak situations based on EV charging pattern data according to industrial area/residential area and time zone, or by season/use, and sets the time for DR issuance. and scale are delivered to the DR operator (S11).

In this case, in most cases, a reliability DR is issued to encourage a reduction in power usage in preparation for power peak situations.

In addition, in seasons or times when demand for electricity is low, or in areas where the amount of renewable energy generation exceeds electricity demand (e.g. Jeju Island), when electricity supply exceeds electricity demand due to the generation of new renewable energy such as wind power generators, A plus (+) DR can be issued to stabilize the system.

Afterwards, when the DR issuance date and time arrives, the DR is officially issued (S12).

When the DR issuance (forecast) from the Korea Power Exchange (100) is delivered to the DR service provider's system server (200), the system server (200) is connected to the DR contractor's contractor terminal (500) and electric vehicle (EV) (600). And a DR issuance (forecast) is transmitted to the DR charger 701 (S13). In this case, the system server 200 may also deliver a DR order (forecast) to the DR charging control center 760, which manages the DR charger 701 of the DR charging station 700.

When receiving a DR order, the system server 200 stores DR data in the DR data table 310 of the database 300. The DR data includes DR issuing start time, DR issuing end time, DR issuing ID, DR issuing scale (level), DR issuing event (text), etc.

The above DR issuance is one of two types: reliability DR, which encourages a reduction in power usage in preparation for peak power situations, and positive DR, which encourages consumption of surplus renewable energy when power supply exceeds power demand due to excessive generation of renewable energy. may occur.

When a DR order (forecast) is delivered to the contractor terminal 500 and the DR charging control center 760, the DR contractor receives the current remaining charge amount and driving distance of the battery 630 built into the electric vehicle (EV) 600, and DR Check in advance the end time of the order and the distance to the target area where you want to drive, and for example, when the DR order is issued 1 hour later, the battery 630 is charged for the DR order period, for example, 2 hours after the DR is issued. Participation in DR charging can be determined in advance by considering the need for charging.

In addition, the DR charging control center 760 can also plan in advance an operation plan for a plurality of DR chargers 701 managed by the charging control center 760.

Moreover, similar to the above, DR contractors living in apartments using the public DR charging device 623 or DR contractors using the portable DR charging device 621 also use the battery ( 630), you can check in advance the current remaining charge amount, possible driving distance, DR issuance end time, and distance to the target area you want to drive, and decide in advance whether or not to participate in DR charging.

In addition, even if the DR is issued not as a reliability DR but as a plus (+) DR, the current remaining charge of the battery 630 built into the electric vehicle (EV) 600, the possible driving distance, the end time of the DR issue, and the You can check the distance to the target area you want to drive in advance and decide in advance whether to participate in Plus (+) DR charging.

When receiving a DR order (forecast), the system server 200 delivers a DR notice to the DR contractor's contract terminal 500 (S15).

In this case, when the DR is issued (forecast), it is also delivered to the electric vehicle (EV) 600, and a pop-up message informing of DR approval, ‘DR has been issued’, is displayed on the display screen of the electric vehicle (EV) 600. You can.

The above DR notice announces the details of incentives for DR contractors when participating in (Reliability DR/Plus DR). Additionally, the DR notice also includes a notice regarding the imposition of a penalty if charging is performed during the time when the reliability DR is issued.

The DR issuance details according to the above DR notice are transmitted to the contractor terminal 500 in the form of a text message 230 or an APP notification.

As shown in Figure 10, the DR issuance details inform the subject of the DR issuance, type of DR, reduction date, reduction time (typically 2 hours), and target power usage.

When receiving a DR order, the system server 200 creates a DR map (Map) capable of DR navigation 750 as shown in FIG. 12 through the DR contractor's contractor terminal 500 based on the DR profit algorithm. In addition, differentiated charging tables (time, region, amount) (753) are provided according to DR charging time and region (S14).

The charging table shown in FIG. 11 represents a charging table applied when, for example, a DR order is not issued to a residential area. Referring to the charging table 753, a more expensive rate (KRW 1,500) than the basic rate (KRW 1,300) is applied between 22:00 and 02:00, when most users attempt to charge, and between 13:00 and 13:00. During the 15:00 time zone and the 02:00 to 15:00 time zone, cheaper rates (900 won and 700 won) are applied than the basic rate (1,300 won).

The system server 200 can provide the charging table 753 even when a DR order is not issued, and this can serve to induce distribution of the charging peak time.

The DR navigation 750 provides map information showing the DR charging station 700 where a DR charger 701 capable of DR charging is installed, and location information such as the charging station address 752, price information, and application time are displayed. A charging table 753 is provided.

When the system server 200 provides a DR charging map service (i.e., DR navigation) to the contractor terminal 500 on which the app (APP) 522 is installed, the DR contractor (user) uses the app (APP) 522. After driving and executing the DR navigation (750), if you select the desired DR charging station (700), the DR contractor will guide you to the selected DR charging station (700).

When DR is applied, the billing table 753 displayed in the DR navigation 750 does not display the billing and discount rates during the DR issuance time period (13:00 to 15:00), and instead displays “DR issuance.” The billing and discount rates for the DR issuing time period (13:00 to 15:00) can be determined based on the DR profit algorithm.

The system server 200 can provide DR navigation 750 even when a DR order is not issued. The DR navigation 750 can search for charging stations in areas with low load by region and time slot or areas with many chargers in an unloaded state, and low discount rates are applied to areas with low load by region and time slot.

Therefore, even when a DR order is not issued, the system server 200 provides the DR navigation 750 to the DR contractor and guides charging stations applying low discount rates, thereby directing charging demand to areas with chargers in an unloaded state. Dispersion can be induced.

The system server 200 delivers a DR notice to the DR contractor through the DR contractor terminal 500 and then delivers the DR billing table (time, region, amount) and DR navigation 750 (S16).

The DR navigation 750 may be operated based on an app or web.

The DR contractor (user) receives the received DR billing table (time, region, amount) along with the current charge remaining amount and driving distance of the battery 630 built into the electric vehicle (EV) 600, the end time of the DR issuance, and the user's personal information. Check the distance to the target area where you want to drive in advance and determine whether to participate in DR charging (S17).

According to the above judgment, as shown in FIGS. 6 and 7, if the DR contractor (user) participates in DR charging when issuing reliability DR or plus (+) DR, when DR charging is completed, the DR verification data is sent to the system server (200) ) is transmitted.

Additionally, if the DR contractor (user) does not participate in DR charging and selects general charging, data on penalty charging is also transmitted to the system server 200.

The system server 200 owns the electric vehicle (EV) 600 when the DR contractor (user) participates in DR charging according to the issuance of reliability DR or plus (+) DR or when normal charging is selected without participating in DR charging. In cases where a DR contractor (user) does not participate in DR charging, DR verification data is delivered to the Korea Power Exchange (100) (S18).

The DR verification data includes DR business ID (VTN-id), event ID, modification number, event start time, event duration, and reduction amount (including EV uncharged record) for the Korea Power Exchange (100). In addition, the DR verification data is transmitted in conjunction with the OpenADR protocol specified in the demand response resource power trading system of the Korea Power Exchange (100).

In the above step (S17), the DR contractor (user) can participate in DR charging.

Hereinafter, a case in which a reliability DR is issued and participation in DR charging will be described with reference to FIG. 6.

As shown in FIG. 6, when a general user who has not signed a DR contract visits the DR charging station 700 where the DR charger 701 is located and requests to charge the battery 630 of an electric vehicle, the DR charger operator confirms the fact that the reliability DR is issued. and the corresponding DR compensation can be explained and DR charging can be induced.

In this case, the DR charging is one of limited charging, continuous charging, and charging suspension, and general charging that does not correspond to DR charging can also be selected.

Afterwards, the general user can select one of the charging options among normal charging, limited charging, natural charging, and charging suspension (S22).

First, the limit charge (S24) operates the limit charge module 746 of the DR control device 740 to lower the charging voltage of the battery 630 or to increase the charging speed to slow charging instead of fast charging or slow charging instead of slow charging. It can be lowered.

Generally, during fast charging, both the charging voltage and current are set higher than during slow charging. Therefore, even when the charging voltage of the battery 630 is lowered, the charging power is reduced when the charging current is constant.

In addition, when the limited charging (S24) is selected, the standard for the maximum remaining charge of the battery 630 can be limited. That is, the maximum charge standard of the battery 630 can be lowered from, for example, 90% to 60%. However, if the current charge of the battery 630 reaches the discharge warning value, low-speed (slow) charging can be selected when controlling the charging voltage.

When the user selects natural charging (S25), the natural charging module 744 of the DR control device 740 is driven to determine the charging time as the DR issuing end time (peak time) when the remaining charge of the battery is above a certain capacity. It will be postponed until later to recharge. In this case, reserved charging can be performed using the reservation function of the continuous charging module 744.

If the user selects to stop charging (S26) during a reliability DR issuance, the power cutoff module 742 of the DR control device 740 is activated to stop charging the electric vehicle (EV) that was charging right before the DR issuance, and preset charging. When charging is stopped for an electric vehicle (EV) whose battery 630 has been charged beyond its capacity and the total amount of power used at the DR charging station 700 exceeds the previously agreed upon amount of power, the DR charger ( Charging is blocked according to one of the charging stops in 701).

When the DR is issued, the DR charger 701 may block charging of the electric vehicle (EV) 600 under the control of the DR charging control center 760.

In addition, even if reliability DR is issued, the electric vehicle user selects normal charging (S23) instead of DR charging including limited charging (S24), natural charging (S25), and charging stop (S26) and uses the DR charger 701. The battery 630 can be charged using DR, and in this case, a penalty may be imposed on the DR charger operator.

The DR compensation amount applied to the DR charger operator of the DR charging station 700 that operates the DR charger 701 is determined according to the DR base fee and execution fee model, and the DR execution fee made during the DR issuance time period is added to the DR issuance base fee. This is the way it works.

As described above, when DR charging is completed at the DR charging station 700, the DR module 720 of the DR charger 701 or the DR charging control center 760 connects the system server 200 to the contractor (i.e., DR charger operator). ID, charger ID, charging station location, and charging history data are transmitted as DR verification data (S27). Accordingly, the system server 200 transmits the DR verification data to the Korea Power Exchange 100 as in step S18.

Meanwhile, a DR contractor (user) who owns an electric vehicle (EV) 600 with the DR module 620 installed can issue DR (notice), send DR billing table (time, region, amount) and DR navigation (750) to the DR contractor. After receiving it through the terminal 500, participation in reliable DR charging can be decided (S21).

In this case, when the DR contractor (user) decides to participate in reliable DR charging, the DR contractor terminal 500 sends the battery ( 630), you can check in advance the current remaining charge, the possible driving distance, the DR issuance end time, and the distance to the target area you want to drive, and run the DR navigation (750) to find the desired DR charging station (700). there is.

Even when a DR order is not issued, the system server 200 provides DR navigation 750 to DR contractors and guides them to charging stations applying low discount rates, thereby distributing charging demand to areas with chargers in an unloaded state. can do.

When issuing a DR, the system server 200 announces the details of the reliability DR issuance and DR compensation as shown in FIG. 10 (S28).

Afterwards, the DR contractor can visit the DR charging station 700 and select one of the charging options among normal charging, limited charging, delayed charging, and charging stop (S29).

First, the limit charge (S32) operates the limit charge module 656 of the DR control device 650 to lower the charging voltage of the battery 630 or to increase the charging speed to slow charge instead of fast charge or slow charge instead of slow charge. It can be lowered.

Generally, during fast charging, both the charging voltage and current are set higher than during slow charging. Therefore, even when the charging voltage of the battery 630 is lowered, the charging power is reduced when the charging current is constant.

Additionally, when the limited charging (S32) is selected, the standard for the maximum remaining charge of the battery 630 can be limited. That is, the maximum charge standard of the battery 630 can be lowered from, for example, 90% to 60%. However, if the current charge of the battery 630 reaches the discharge warning value, low-speed (slow) charging can be selected when controlling the charging voltage.

When selecting the natural charging (S33), the natural charging module 654 of the DR control device 650 is driven and when the remaining charge of the battery is above a certain capacity, the charging time is set to after the DR issuing end time (peak time). It is recharged by acting. In this case, reserved charging can be performed using the reservation function of the continuous charging module 654.

When the charging stop (S31) is selected, the power cutoff module 652 of the DR control device 650 is driven to stop charging the electric vehicle (EV) whose battery 630 is charged beyond the preset charging capacity. Block charging.

Additionally, even if a reliability DR is issued, the DR contractor chooses normal charging (S30) to charge the battery 630 instead of DR charging, which includes the above limited charging (S32), natural charging (S33), and charging stop (S31). This can be done, and in this case, a penalty may be imposed on the DR contractor.

As described above, when a DR contractor participates in reliable DR charging and completes DR charging, the DR module 620 sends the contractor ID, EV ID (i.e., electric vehicle ID), charging location, and charging history data to the system server 200. is transmitted as DR verification data (S34). Accordingly, the system server 200 transmits DR verification data to the Korea Power Exchange 100 as in step S18.

Figure 7 is a flowchart showing the execution procedure according to the issuance of Plus DR among the demand response-based charging power management method for electric vehicles (EV) according to an embodiment of the present invention.

The type of DR issuance may be a plus (+) DR that encourages consumption of surplus renewable energy when power supply exceeds power demand due to excessive generation of renewable energy.

The plus (+) DR issuance (forecast) from the Korea Power Exchange (100) is delivered to the DR operator's system server 200 (S13), and the system server 200 is connected to the DR contractor's contractor terminal 500, A DR issuance (forecast) is delivered to the electric vehicle (EV) 600, DR charger 701, and DR charging control center 760 (S15).

When the plus (+) DR is issued as above and delivered to the DR contractor (user) who owns the electric vehicle (EV) 600 on which the DR module 620 is installed, the DR contractor (user) charges the plus (+) DR. By deciding to participate (S35), the battery 630 can be additionally charged up to the maximum charging capacity by considering the current charge amount of the battery 630 (S38).

Moreover, as described above, when a DR contractor (user) participates in plus (+) DR charging and completes DR charging, the DR module 620 sends the contractor ID and EVID (i.e., electric vehicle ID) to the system server 200. , the charging location and charging history data are transmitted as DR verification data (S39). Accordingly, the system server 200 transmits DR verification data to the Korea Power Exchange 100 as in step S18.

In addition, when a reliability DR is issued, the DR charging station 700 induces a reduction in charging amount, such as a charging ban or charging limit for the electric vehicle (EV) 600, but when a positive DR is issued, on the contrary, charging is to encourage.

Accordingly, the DR charging station 700 explains the fact that a plus (+) DR is issued and the corresponding DR compensation to the electric vehicle (EV) 600 users who visit the charging station, and provides additional chargeable batteries in consideration of the current charge amount of the battery 630. Charging is recommended between DR charging and normal charging desired by the user, and if the user selects DR charging, plus (+) DR charging is performed (S36).

As described above, when positive DR charging is completed, the DR charger 701 or the DR charging control center 760 sends the contractor (DR charger operator) ID, charging station ID, charging station location, and charging to the system server 200. The history data is transmitted as DR verification data (S37). Accordingly, the system server 200 transmits the DR verification data to the Korea Power Exchange 100 as in step S18.

After receiving DR verification data according to reliability DR and plus (+) DR charging through the system server 200 (S19), Korea Power Exchange 100 performs DR settlement as shown in FIG. 8.

Referring to FIG. 8, the Korea Power Exchange 100 calculates the DR compensation amount based on the DR verification data received from the DR business operator (S41) and then delivers the DR compensation amount to the DR business operator (S42).

The DR operator distributes the DR compensation amount according to the profit algorithm for each DR contractor (S43). In other words, profit settlement and distribution is determined based on the contract ratio and figures on the charging history of reliability DR and plus DR in which the DR contractor (user) participated.

In this case, the electricity fee applied when charging the battery 630 is differentially charged and settled according to the charging type and time period.

The DR business operator notifies the DR profit distribution and differential electricity billing determined for each DR contractor (user) (S44). In other words, the DR business operator notifies each DR contractor (user) of DR profit distribution according to the contract ratio, and also notifies the charging performance and penalties that occurred during DR issuance.

In the present invention, the criteria for providing compensation according to the issuance of DR are as follows.

First, if the user proceeds with a DR contract and installs the DR module (620) and DR control device (650) in the DR contractor's electric vehicle (EV) (600), the DR contractor participates in DR charging and pays the base fee and execution fee. You are eligible for compensation based on the fee, and you are eligible for compensation based on the basic fee even if you do not participate in DR charging when DR is issued.

Second, if the user has entered into a DR contract but has not installed the DR module (620) and DR control device (650) in the DR contractor's electric vehicle (EV) (600), visit the DR charging station (700) when DR is issued. Therefore, if you participate in DR charging, you are eligible for compensation based on the execution fee and can receive the execution fee together with the DR charging station 700, but if you do not participate in DR charging, you are not eligible for compensation.

Third, if a user who does not have a DR contract visits the DR charging station (700) and participates in DR charging when the DR is issued, he or she is eligible for compensation for the discounted rate service provided by the DR charging station.

Fourth, DR contractors who have entered into a DR contract while residing in an apartment where a public DR charging device (623) is installed are eligible for compensation based on the base fee and performance fee if they participate in DR charging when the DR is issued. Even if you do not participate in DR charging, you are eligible for compensation based on the base rate. In this case, the DR contractor living in an apartment complex has nothing to do with compensation if he or she installs the DR module 620 and DR control device 650 in his or her electric vehicle (EV) 600.

Fifth, a DR contractor who has entered into a DR contract and owns a portable DR charging device (621) is eligible for compensation based on the base fee and execution fee if he or she participates in DR charging when DR is issued, and is eligible for compensation based on the base fee and execution fee when DR is issued. Even if you do not participate, you are eligible for compensation based on the base fee. In this case, the DR contractor who owns the portable DR charging device 621 installing the DR module 620 and DR control device 650 in his electric vehicle (EV) 600 is not eligible for compensation.

In the present invention, if the electric vehicle (EV) 600 is not in operation when DR is issued, DR compensation based on the running fee is not applicable, and DR charging is approved by charging below a certain charging rate at the DR charging station 700. DR charging is recognized from then on only if it is done, and DR compensation is made for the portion that was not charged due to the DR charging.

In the present invention, based on the standard for providing compensation according to the issuance of DR, if the DR contractor participates in DR charging, he/she is eligible for compensation based on the base fee and execution fee, and is eligible for compensation based on the base fee even if he or she does not participate in DR charging when the DR is issued. Although eligible, drivers (users) participating in DR charging are not necessarily directly driven by the DR contractor, and DR compensation may be provided to the DR contractor even if a family member or third party drives the vehicle.

The present invention is applied to charging the battery of an electric vehicle (EV) with a demand response (DR) module installed in accordance with a reliability DR issued when a power peak situation occurs, or to an electric vehicle charger (DR charger) with a demand response (DR) module installed. When charging the battery of an electric vehicle (EV) using ), the data that participated in the DR execution is generated and managed to compensate participating customers (DR subscribers), thereby stabilizing the power grid. It can be used in a charging power management system.

100: Korea Power Exchange 110: DR issuance table
112: DR time data table 114: DR scale data table
120: DR reporting data table 200: System server
210,510: Communication device 220,520: Processor
222: Program 300: Database
310: DR data table 320: data table
321: Charging station management table 322: Charger management table
323: Charging history management table 324: Electric vehicle management table
325: DR module management table 326: Contractor management table
327: DR order data management table 400: Administrator terminal
328: DR verification data management table 230: Text message
500: DR contractor terminal 522: APP
530: User Interface 532: DR Navigation Menu
534: DR data menu 540,730: Display
600,601: Electric vehicle (EV) 610,710: Communication module
620,720: DR module 621: Portable DR charging device
623: Public DR charging device 630: Battery (BAT)
640: BMS 650,740: DR control device
652,742: Power cutoff module 654,744: Pure lead charging module
656,746: Limited charging module 700: DR charging station
701: DR Charger 702,725: Charger
750: DR navigation 751: Pop-up window
752: Address 753: DR charging table
1000: Charging power management system

Claims (33)

When receiving a demand response (DR) order issued from the Korea Power Exchange, the DR order is transmitted to the DR contractor's terminal, and if the DR contractor participates in DR execution by DR charging the battery of an electric vehicle (EV), the above KEPCO is sent to the DR contractor. A system server that distributes DR compensation paid from the exchange;
A DR module equipped with a battery that is DR charged using a charger, receives a DR command from the system server, and transmits DR verification data to the system server when DR charging for the battery is completed, and is controlled by the DR module A plurality of electric vehicles (EVs) installed with a DR control device to control DR charging when the DR contractor selects one of the charging options among charging stop, continuous charging, and limited charging; and
It includes a plurality of DR contractor terminals owned by the DR contractor for receiving DR orders from the system server,
The DR contractor signs a DR contract with the DR business operator that operates the system server and installs a DR module and DR control device in his or her electric vehicle (EV),
If the DR issuance is a reliable DR, the DR contractor selects between general charging with a penalty fee and the DR charging,
The DR compensation amount is determined in proportion to the basic fee eligible for compensation and the performance of participating in the DR recharge even if the DR contractor does not participate in DR recharge when DR is issued in the case of a DR contractor who has entered into a DR contract with the DR business operator. A demand response-based electric vehicle (EV) charging power management system that includes charges. delete According to paragraph 1,
The DR control device is
A continuous charging module that postpones the charging time until after the DR issuance end time;
A limiting charging module for limiting the maximum charging capacity or charging voltage of the electric vehicle (EV) battery; and
A demand response-based electric vehicle (EV) charging power management system that includes a power cutoff module for stopping charging of an electric vehicle (EV) battery charged beyond a preset capacity. According to paragraph 1,
When DR charging for the battery is completed, the DR module transmits DR verification data to the system server,
The DR verification data is a demand response-based electric vehicle (EV) charging power management system that includes contractor ID, electric vehicle ID, charging location, and charging history data. delete According to paragraph 1,
The DR contractor terminal downloads and installs the app (APP) necessary to receive various information from the system server and information service text messages according to the DR issuance,
The user interface displayed when the app is running includes a DR navigation menu,
A demand response-based electric vehicle (EV) charging power management system that displays a DR navigation that provides a pop-up window on the map that provides the address of a DR charging station capable of DR charging and a DR charging table when the DR navigation menu is selected. According to clause 6,
The user interface further includes a DR data menu,
A demand response-based charging power management system for an electric vehicle (EV) in which DR verification data according to DR charging is displayed when the DR data menu is selected when performing the DR charging. According to clause 6,
The DR navigation provides map information showing DR charging stations equipped with DR chargers capable of DR charging,
A demand response-based charging power management system for electric vehicles (EV) that provides a pop-up window that provides the address of the selected DR charging station and the DR charging table in the current state when the user specifies one of multiple DR charging stations displayed on the map. According to paragraph 1,
It further includes a DR charging station having a DR charger capable of selecting one of DR charging and general charging for the battery of an electric vehicle (EV) when a DR command is received from the system server,
The DR business operator signs a DR contract with the DR charger business operator that operates the DR charging station and installs a DR module and DR control device on the DR charger. The DR module sends DR verification data to the system server when DR charging is performed. A demand response-based electric vehicle (EV) charging power management system. According to clause 9,
It further includes a DR charging control station that provides charging control services for the DR charging station,
A demand response-based electric vehicle (EV) charging power management system in which the DR charging control center remotely controls charging blocking of the DR charger on which the DR module and DR control device are installed when receiving a DR command from the system server. According to clause 9,
The DR charger is
A charger for charging the battery (BAT) of the electric vehicle (EV);
A communication module capable of wireless communication with the system server;
a DR module that performs DR charging according to the selection of the electric vehicle (EV) user when receiving a DR command from the system server through a communication device and transmits DR verification data to the system server when DR charging is completed; and
A demand response-based charging power management system for an electric vehicle (EV), including a DR control device for controlling DR charging of the DR charger according to the control of the DR module. According to clause 11,
The DR control device is
A power cutoff module for stopping charging of an electric vehicle (EV) battery charged beyond a preset capacity;
A continuous charging module that postpones the charging time until after the DR issuance end time; and
A demand response-based charging power management system for an electric vehicle (EV), including a limiting charging module for limiting the maximum charging capacity or charging voltage of the electric vehicle (EV) battery. According to clause 9,
DR charging, in which charging is limited according to the DR issuance from the system server, is a natural charge in which the charging time is postponed until after the DR issuance end time, and the charging voltage of the battery is low-voltage slow charging instead of high-voltage rapid charging. A demand response-based electric vehicle (EV) charging power management system that either limits the maximum charge amount or lowers the standard for the maximum charge amount of the battery, and stops charging an electric vehicle (EV) battery charged beyond a preset capacity. According to clause 9,
A demand response-based electric vehicle (EV) charging power management system in which a penalty is imposed on the DR charger operator when a DR is issued from the system server and general charging is performed using the DR charger. According to clause 9,
A demand response-based electric vehicle (EV) charging power management system that is eligible for compensation for the discount rate service provided by the DR charging station when a user who is not a DR contract visits the DR charging station and participates in DR charging when DR is issued. According to paragraph 1,
It is installed in an apartment complex and further includes a public DR charging device installed with a DR module that receives a DR order through wireless communication with the system server and transmits DR verification data to the system server when DR charging of the battery of the electric vehicle is completed. And
A demand response-based charging power management system for electric vehicles (EVs) in which the electric vehicle user enters into a DR contract with a DR operator who operates the system server. According to clause 16,
A DR contractor who has entered into a DR contract while residing in an apartment where the above-mentioned public DR charging device is installed is eligible for compensation based on the base fee and implementation fee if he or she participates in DR charging when the DR is issued, and is not eligible for DR charging when the above-mentioned DR is issued. A demand response-based electric vehicle (EV) charging power management system that is eligible for compensation based on the base rate even if you do not participate. According to paragraph 1,
A portable DR that is used in combination with a charger and has a DR module that receives a DR command through wireless communication with the system server and transmits DR verification data to the system server when DR charging for the battery of an electric vehicle (EV) is completed. It further includes a charging device,
A demand response-based charging power management system for electric vehicles (EVs) in which the electric vehicle user enters into a DR contract with a DR operator who operates the system server. According to clause 18,
A DR contractor who has entered into a DR contract and owns the above portable DR charging device is eligible for compensation based on the base fee and implementation fee if he or she participates in DR charging when the DR is issued, even if he or she does not participate in DR charging when the above DR is issued. A demand response-based electric vehicle (EV) charging power management system eligible for compensation based on the base rate. According to clause 9,
If the user has entered into a DR contract but has not installed the DR module and DR control device in the DR contractor's electric vehicle (EV), and if the user visits the DR charging station and participates in DR charging when the DR is issued, compensation is provided based on the execution fee. A demand response-based electric vehicle (EV) charging power management system that is eligible for compensation but is not eligible for compensation if you do not participate in DR charging. According to paragraph 1,
When the DR issuance is a plus (+) DR, the DR contractor performs additional battery charging by considering the current charge amount of the battery. A demand response-based charging power management system for electric vehicles (EV). According to paragraph 1,
The above DR issuance is one of the reliability DR generated to suppress power use during peak power situations when power demand exceeds power supply, and the positive DR generated to encourage power use when power supply exceeds power demand. A demand response-based electric vehicle (EV) charging power management system. When the occurrence of a power peak situation is predicted and a demand response (DR) order is transmitted from the Korea Power Exchange to the system server of the DR business operator, the system server transmits the DR order to the DR contractor terminal of the DR contractor;
When receiving a DR command to the DR contractor terminal, a DR module that transmits DR verification data to the system server when the DR contractor receives the DR command from the system server and completes DR charging of the battery, and the DR module It is controlled by and participates in DR execution by DR charging the battery of an electric vehicle (EV) installed with a DR control device to control DR charging when the DR contractor selects one of the charging options among charging stop, natural charging, and limited charging. step;
Transmitting DR verification data from the DR module to the system server when DR charging of the battery is completed;
When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange;
Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; and
In response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.
The DR contractor signs a DR contract with the DR business operator that operates the system server and installs a DR module and DR control device in his or her electric vehicle (EV),
If the DR issuance is a reliable DR, the DR contractor selects between general charging with a penalty fee and the DR charging,
The DR compensation amount is determined in proportion to the basic fee eligible for compensation and the performance of participating in the DR recharge even if the DR contractor does not participate in DR recharge when DR is issued in the case of a DR contractor who has entered into a DR contract with the DR business operator. Charging power management method for electric vehicles (EVs) based on demand response including charges. When the occurrence of a power peak situation is predicted and a demand response (DR) order is transmitted from the Korea Power Exchange to the system server of the DR business operator, the system server transmits the DR order to the DR contractor terminal of the DR contractor;
When receiving a DR command to the DR contractor terminal, a DR module that transmits DR verification data to the system server when the DR contractor receives the DR command from the system server and completes DR charging of the battery, and the DR module It is controlled by and the battery of an electric vehicle (EV) is charged using a portable DR charging device equipped with a DR control device to control DR charging when the DR contractor selects one of the charging options among charging stop, natural charging, and limited charging. Participating in DR execution by charging DR;
Transmitting DR verification data from the DR module to the system server when DR charging of the battery is completed;
When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange;
Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; and
In response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.
The DR contractor signs a DR contract with the DR business operator that operates the system server and installs a DR module and DR control device in his or her electric vehicle (EV),
The DR compensation amount is determined in proportion to the basic fee eligible for compensation and the performance of participating in the DR recharge even if the DR contractor does not participate in DR recharge when DR is issued in the case of a DR contractor who has entered into a DR contract with the DR business operator. Charging power management method for electric vehicles (EVs) based on demand response including charges. According to claim 23 or 24,
The system server transmits DR navigation along with the DR order to the DR contract terminal of the DR contractor. A method of managing charging power for a demand response-based electric vehicle (EV) further comprising: According to clause 23,
The DR charging is a continuous charging in which the charging time is postponed until after the end time of the DR issuance, a low-voltage slow charging is performed instead of a high-voltage rapid charging of the charging voltage of the battery, or a maximum charging amount that lowers the standard for the maximum charging amount of the battery. A method for managing the charging power of an electric vehicle (EV) based on demand response, which includes either limited charging or stopping charging of an electric vehicle (EV) battery charged beyond a preset capacity. delete According to clause 23,
The DR business operator is a demand response-based business that is an electric vehicle manufacturer that conducts a DR contract at the same time as a sales contract for a new electric vehicle (EV) vehicle and installs and sells a DR module in the new electric vehicle (EV) vehicle it sells, or a business operator that operates multiple electric vehicles. How to manage charging power for electric vehicles (EV). When the occurrence of a power peak situation is predicted and a demand response (DR) order is transmitted from the Korea Power Exchange to the DR operator's system server, the system server transmits the DR order to the DR contractor terminal of the DR contractor living in an apartment complex. step;
When receiving a DR order to the DR contractor terminal, the DR contractor participates in DR execution by DR charging the battery of an electric vehicle (EV) using a public DR charging device installed in the apartment complex;
Transmitting DR verification data from a public DR charging device to the system server when DR charging of the battery is completed;
When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange;
Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; and
In response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR contractor through the DR contractor terminal.
The DR contractor enters into a DR contract with a DR business operator that operates the system server and is controlled by the DR module and the DR module in the public DR charging device, and the DR contractor performs one of charging stops, continuous charging, and limited charging. When selecting an option, install a DR control device to control DR charging,
The DR compensation amount is determined in proportion to the basic fee eligible for compensation and the performance of participating in the DR recharge even if the DR contractor does not participate in DR recharge when DR is issued in the case of a DR contractor who has entered into a DR contract with the DR business operator. Charging power management method for electric vehicles (EVs) based on demand response including charges. delete When the occurrence of a power peak situation is predicted and a demand response (DR) order is transmitted from the Korea Power Exchange to the DR operator's system server, the system server connects the DR charger with the DR module and DR control device of the DR charger operator installed and the DR charger. Transmitting the DR order to a DR charging control center that provides charging control services for;
When the DR charging control center receives a DR command from the system server, remotely controlling DR charging, which limits charging of an electric vehicle (EV) battery by the DR charger;
Transmitting DR verification data from the DR module to the system server when DR charging of the electric vehicle (EV) battery is completed by the DR charger;
When the system server receives the DR verification data, transmitting the DR verification data to the Korea Power Exchange;
Transmitting DR compensation based on the DR verification data from the Korea Power Exchange to a system server; and
In response to receiving the DR compensation from the Korea Power Exchange, the system server distributes the DR compensation to the DR charger operator through the DR contractor terminal.
The DR charger operator enters into a DR contract with the DR operator that operates the system server,
If the DR issuance is a reliable DR, if general charging is made using the DR charger instead of the DR charging, a penalty is imposed on the DR charger operator,
The DR compensation amount is determined in proportion to the base rate eligible for compensation and the performance of participating in the DR charging even if the DR charger business operator has entered into a DR contract with the DR business operator and does not participate in DR charging when the DR is issued. Charging power management method for electric vehicles (EVs) based on demand response including running charges. According to clause 31,
When the DR issuance is a reliable DR, the DR charging is performed by delaying the charging time to after the DR issuance end time and charging, low-voltage slow charging is performed instead of high-voltage rapid charging of the battery, or the battery is charged by slow charging. A method of managing the charging power of an electric vehicle (EV) based on demand response, which includes either limiting the maximum charge amount, which lowers the standard for the maximum charge amount, or stopping charging of an electric vehicle (EV) battery charged beyond a preset capacity. delete

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