KR102546150B1 - Electric vehicle charging control device considering the public housing power system - Google Patents

Abstract

The charge control device of the present invention may include a pattern analyzer that analyzes a demand pattern, which is a pattern of power consumption in an apartment complex, and a charge scheduler that adjusts the charging time of an electric vehicle charger. charging demand of the multi-unit housing complex can be distributed by

Description

Electric vehicle charging control device considering the public housing power system

The present invention relates to an electric vehicle charging control device for multi-family housing using distribution of electric vehicle charging demand.

Electric vehicles need to be charged while staying at home after going home because the charging time for charging electricity, which is fuel, is longer than that of an internal combustion engine vehicle. In a multi-unit dwelling such as an apartment, it is difficult for each occupant of the multi-unit dwelling to manage, unlike in a detached house where an individual charges using commercial power at home and freely adjusts a charging schedule.

Due to the characteristics of multi-unit dwellings that need to manage a large number of chargers, in the case of voltage control in multi-unit dwellings, the allowable power range of substations in the multi-unit dwellings, power peaks by time slots, or electricity rates for the entire apartment complexes may be considered.

As the demand for electric vehicles has recently increased, electric vehicle charging problems have arisen in apartment houses, including apartments, in the form of domestic residence where many live in apartment houses.

According to the Building Act, it is necessary to secure 3% of the parking area for electric vehicles in apartments and 5% for new construction. As the parking area for electric vehicles increases, the demand for electric vehicle chargers also increases, but the capacity of transformers in apartments cannot be easily changed, which can increase the possibility of problems with system stability.

When increased charging demand is concentrated at the same time, system stability may become more unstable. In addition, if additional EV chargers are added to meet the increasing demand for EVs in addition to demand patterns such as the maximum demand of existing apartment complexes, the transformer itself needs to be replaced to meet the increased demand peak.

However, since replacement of transformer infrastructure facilities is expensive, a system that stably manages the power quality of apartment complexes while maintaining the existing transformers is required.

The charging control device of the present invention can provide an apartment house power quality management method that can respond to the increasing charging demand while maintaining the existing transformer capacity of the apartment house as it is.

According to the present invention, the power quality of the multi-unit housing complex can be managed by lowering the difference between the maximum demand and the minimum demand and flattening the demand pattern based on the analysis of the demand pattern by the pattern analyzer for the multi-unit housing complex.

In the charging control device of the present invention, power supplied from the power system can be distributed to a plurality of multi-unit housing complexes, which are downstream nodes of the power system, and the power supplied to the multi-unit housing complex is an electric vehicle through a switchboard installed in the multi-unit housing complex. It can be distributed to facilities in the apartment complex including the charger.

The charge control device of the present invention may include a pattern analyzer that analyzes a demand pattern, which is a pattern of power consumption in an apartment complex, and a charge scheduler that adjusts the charging time of an electric vehicle charger. charging demand of the multi-unit housing complex can be distributed by

The existing Time Of Use (TOU) rate system, which applies different rates according to the amount of power consumption, is difficult to reflect the specific structure of the load, and another power peak occurs as charging demand is concentrated during the time when the low rate is applied. can make it

Therefore, the charging control device of the present invention can distribute the charging demand of electric vehicles parked in apartment complexes to ensure stability of the system due to the problem of transformer capacity in consideration of the power system and to consider the convenience of electric vehicle users.

The present invention sets an objective function for distributing the charging demand of the multi-unit housing complex to calculate the charging start time that minimizes the objective function while maintaining the existing transformer infrastructure of the multi-unit housing complex.

The present invention identifies the power demand pattern of the apartment complex managed by the charging control device, classifies the amount of electric vehicle charging consumed by the electric vehicle charger and the amount of power consumed in each apartment unit, among the power demand patterns, By scheduling the charging start time of electric vehicles parked in the parking lot of the housing complex, it is possible to stabilize the power situation of the multi-family housing complex and reduce costs.

1 is an explanatory diagram of a central management unit and a local management unit of a charging control device according to the present invention.
2 is a configuration diagram of a charging control device of the present invention.
Figure 3 (a) is an explanatory diagram of the supply capacity supplied to the multi-family housing complex of the present invention, and Figure 3 (b) is a description of the operating power supplied to the multi-unit housing complex of the present invention and considering the power surplus storage amount It is also
4 is an explanatory view of a basic pattern among demand patterns of the present invention.
5 is an embodiment in which the charging control device of the present invention is not applied to the entire demand pattern including the charging pattern.
6 is an embodiment in which the charging control device of the present invention is applied to the entire demand pattern including the charging pattern.
7 is a basic voltage profile in which electric vehicle charging-related parts are excluded from the voltage of an apartment complex of the present invention.
8 is an embodiment in which the charging control device of the present invention is not applied to the voltage of an apartment complex including electric vehicle charging.
9 is an embodiment in which the charging control device of the present invention is applied to the voltage of an apartment complex including electric vehicle charging.

1 to 9, a charging control device applied to the apartment complex 70 of the present invention will be described.

The charging control device of the present invention is described as an example of an apartment complex for residence, but the present invention is extended to any place where a large number of electric vehicle chargers are installed in the form of a large parking lot, including collective buildings such as shopping malls. can be applied

A substation or switchgear facility in an apartment complex is installed with a transformer, load switchgear (LBS), vacuum circuit breaker (VCB), air circuit breaker (ACB), instrument transformer (MOF), power fuse (PF), battery, charger, etc. As replacement of such transformer infrastructure facilities is costly, a system that stably manages the power quality of apartment complexes while maintaining the existing transformers may be required.

Accordingly, the charging control device of the present invention schedules the electric vehicle charging start time to respond to the increasing charging demand while maintaining the capacity of the existing transformer in the apartment house, thereby managing the power quality of the apartment house that can distribute the electric vehicle charging demand method can be provided.

First, with reference to FIGS. 4 to 9 , the electric vehicle charging time adjustment by the charging scheduling unit 470 of the present invention will be described.

The charging control device of the present invention may include a charging scheduling unit 470 capable of adjusting charging times of the electric vehicle chargers L1 to L3. The charging control device may include a central management unit 400 capable of controlling a plurality of apartment complexes 71 and 72 , and a charging scheduling unit 470 may be included in the central management unit 400 .

A demand pattern, which is a pattern of consumed power of the apartment complex 70, can be classified into a basic pattern and a charging pattern.

The basic pattern may include the consumption demand of each household in the apartment complex 70 and the consumption demand of the common part of the apartment complex 70 . The charging pattern may include the electric vehicle charging amount of the electric vehicle charger L installed in the apartment complex 70 .

Referring to FIG. 4 , a basic pattern that is a load when there is no demand for charging an electric vehicle in the apartment complex 70 is shown. The basic pattern may be power consumption Wednesday consumed in the apartment complex 70 separately from the electric vehicle charger L facility. Although the transformer capacity is not exceeded, the maximum demand of the basic pattern may approach the transformer capacity during peak demand times.

Through the pattern analysis unit 340 of the present invention, among the demand patterns according to time by city, week, and year, the demand pattern for electric vehicle chargers in the parking lot adjacent to the building to which each household belongs, and the demand pattern for electric vehicles owned by each household At least one can be analyzed, and using this, the present invention can provide the best power consumption scheduling for each generation.

Looking at the management of the electric vehicle charger (L) of the present invention, the basic pattern analyzed by the pattern analyzer 340 can be referred to as a fixed value or a fixed demand pattern, and the charging pattern by electric vehicle charging can be controlled. It can be a value or a demand pattern that can fluctuate.

Accordingly, the charging scheduling unit 470 may optimize the demand pattern of the apartment complex 70 by setting the basic pattern to a fixed value and the charging pattern to a variable value.

Optimization of the demand pattern of the apartment complex 70 may be adjusting the charging time of the electric vehicle charger to minimize the difference between the maximum demand and the minimum demand of the demand pattern.

Referring to FIG. 5, the charging pattern is not yet distributed by the charging control device, and the total demand pattern is installed in the apartment complex 70 at the power peak point (A) due to the increase in demand of the electric vehicle charger (L). The limit capacity of the transformer 240 may be exceeded. For example, when an electric vehicle user returning home to the apartment complex 70 starts charging, charging demand may be concentrated at the same time in the evening, and a problem of exceeding the allowable capacity of the transformer may occur.

Referring to FIG. 6, the total demand pattern includes both the basic pattern including the household or common consumption pattern of the apartment complex 70 and the charging pattern according to electric vehicle charging, and the total demand pattern to which the charging control device of the present invention is applied. The demand pattern is shown, and it can be seen that the charging demand of the apartment complex 70 is distributed by the pattern analysis unit 340 and the charging scheduling unit 470 of the present invention.

Accordingly, the charge scheduling unit 470 may reduce the difference between the maximum demand and the minimum demand among demand patterns based on the demand pattern analysis by the pattern analyzer 340 and flatten the demand pattern over time.

The charging scheduling unit 470 may distribute the charging amount of the electric vehicle in the charging pattern to fill a local minimum point of the basic pattern.

The charging time adjustment by the charging scheduling unit 470 may include setting an objective function and calculating a charging start time or a charging delay time that minimizes the objective function.

The objective function may include at least one of a maximum demand of the demand pattern, a difference between the maximum demand and minimum demand of the demand pattern, a variance value of the demand pattern, and a charging cost.

The objective function can be given by Equation 1.

Here, Loss(t) may be an objective function, Pdiff may be the difference between the maximum demand and the minimum demand of a demand pattern, Pvar may be a variance value of a power load or a variance value of a demand pattern, and Cev may be a charging cost. there is.

The difference (Pdiff) between the maximum demand and the minimum demand of the demand pattern can be expressed by Equation 2.

Here, Ppeak may be the maximum demand or maximum power of the demand pattern, and may be given by Equation 3. Pvalley may be the minimum demand or minimum power of the demand pattern, and may be given by Equation 4.

Here, Ptotal,i may be the power for timestamp i or the demand pattern for timestamp i.

Here, Ptotal,i may be the power for timestamp i or the demand pattern for timestamp i.

The total demand pattern (Ptotal) obtained by adding the basic pattern and the charging pattern may be given as in Equation 5.

Here, Pbase may be power when an electric vehicle does not exist, and may be expected power before a charging pattern for an electric vehicle charging amount is added. Pev may be a charging pattern by charging an electric vehicle.

The variance value Pvar of the demand pattern can be given by Equation 6.

Here, E means average, Ptotal is the demand pattern according to Equation 5, and Pmean may be average power.

The charging cost (Cev) that can be considered in the objective function can be given by Equation 7.

Here, Pev,i may be charging power for timestamp i, and Ci may be a charge per unit power for timestamp i.

In the charging control device of the present invention, optimal charging scheduling of the apartment complex 70 is a charging start time that satisfies the constraint conditions given by Equations 8 and 9 and minimizes the objective function Loss(t) ( t) may be calculated.

Equation 8 may be a condition for the magnitude of the voltage V operated in the apartment complex 70, Vmax may mean a voltage upper limit, and Vmin may mean a voltage lower limit.

Here, Ptotal may be the entire demand pattern of the apartment complex 70, and Pcapacity may be the maximum allowable capacity of the transformer 240 installed in the apartment complex 70.

7 to 9 show voltage patterns of the apartment complex 70 over time.

7 may show the voltage of the apartment complex 70 when there is no demand for charging electric vehicles. FIG. 7 may correspond to FIG. 4 , FIG. 8 may correspond to FIG. 5 , and FIG. 9 may correspond to FIG. 6 .

Dotted lines may indicate the upper voltage limit and the lower voltage limit of the apartment complex 70, respectively.

If the demand or load of the multi-unit housing complex 70 increases, the voltage of the multi-unit housing complex 70 may decrease, and if the demand or load of the multi-unit housing complex 70 decreases, the voltage of the multi-unit housing complex 70 may increase. there is.

Referring to FIG. 8 , when electric vehicle users who have returned home start charging, the voltage of the apartment complex 70 may drop as charging demand is concentrated in the evening. The local minimum point A of the voltage of the multi-unit housing complex 70 may reach the lower voltage limit, resulting in a risk of power failure or the like of the multi-unit housing complex 70 . The local minimum point (A) of the voltage of the apartment complex 70 may correspond to the power peak point (A) of the aggregate demand pattern.

Referring to FIG. 9 , it can be seen that the charging demand of the apartment complex 70 is distributed by the pattern analysis unit 340 and the charging scheduling unit 470 .

The charge scheduling unit 470 may cause the local maximum point of the voltage of the apartment complex 70 to move away from the upper voltage limit, and the local minimum point of the voltage of the apartment complex 700 to move away from the lower voltage limit.

The charge scheduling unit 470 can increase demand or load and lower voltage in the early morning hours when the vehicle is parked, and can stably flatten power even during peak demand or load hours. Accordingly, the charging demand of the apartment complex 70 can be distributed by the pattern analysis unit 340 and the charging scheduling unit 470 of the present invention.

Meanwhile, the charging scheduling unit 470 may have a first mode and a second mode.

In the first mode, the charging start time calculated by the charging scheduling unit 470 may be collectively applied to electric vehicles (EVs) parked in the apartment complex 70 .

In the second mode, the charging start time calculated by the charging scheduling unit 470 may be delayed differently depending on the electric vehicle user's choice to charge.

The electric vehicle user's choices may include at least one of slow charging or fast charging, a charging completion time, and a charging amount.

An electric vehicle user can select an option when attempting to charge the electric vehicle charger (L) with a connector or the like.

Electric vehicle users can select fast charging when using an electric vehicle immediately for reasons such as going out, and slow charging when parking until the next morning after returning home.

Electric car users can select the time at which the electric car is fully charged. The charging control device basically determines that charging is completed before the normal rush hour, and can determine whether or not to finish charging late in the morning even if it is not particularly rapid charging.

Electric car users can choose the amount of charging their electric car. Electric car users can choose whether to charge their electric car to 100%, only 50% or not to charge it before going to work the next day by referring to their usual electric car usage pattern.

In addition, if the electric car user does not intend to use the electric car the next day for reasons such as annual leave, the electric power stored in his electric car battery can be reversely transmitted to the power storage unit 320 installed in the apartment complex 70. Can be selected.

The first mode may be a case in which batch processing of parked electric vehicles is required due to the intention of the apartment complex 70 households or limitations of infrastructure construction, and this may change the charging start time without considering the situation of each electric vehicle user. Since it is scheduling, there is no choice but to schedule charging conservatively and stably to complete charging the next day.

In the second mode, various charging methods may be provided according to the selection of the electric vehicle user, and thus energy saving and cost reduction efficiency may be increased compared to the first mode. In addition, electric car users can use their electric car batteries as an energy storage system (ESS). The charging control device flexibly adjusts the charging scheduling of the apartment complex 70 using the renewable energy produced by the renewable energy generator 700 installed in landscaping and the amount of power stored in the battery of the electric vehicle due to the characteristics of the apartment complex 70 can

The electric vehicles of each household of the apartment complex 70 can be charged by the electric vehicle charger L after being automatically authenticated by the recognition means. Recognition means may include a pass of the multi-unit housing complex 70 and the like. The recognition means may be any means that can track the amount of charge of an electric vehicle charged by each household within the multi-family housing complex 70 . The electric vehicle charging amount consumed by each household may be added to the notice of management cost of the apartment complex 70 for each household and notified.

In the second mode, benefits may be given to electric vehicle users who help the charging control device charge scheduling.

An act of assisting in charging scheduling may include selecting slow charging or permitting reverse transmission of power stored in an electric vehicle battery to a power storage unit in an apartment complex.

The charging scheduling unit 470 may reflect an act of assisting in charging scheduling when adding a management fee notice by giving an electric charge reduction or discount benefit to a household.

Therefore, the present invention can secure the stability of the power system due to the capacity problem of the transformer 240 by operating the increasing electric vehicle charger (L) facility without replacing expensive transformer infrastructure such as replacing the transformer 240, and the electric vehicle user can The convenience of electric car users can also be satisfied by utilizing unused parking hours, considering the choices of each electric car user, and completing charging before the electric car user's desired time.

Referring to FIGS. 1 and 2 , power supplied from the power system 10 may be distributed to an apartment complex 70 corresponding to a downstream node of the power system 10 .

The apartment housing complex 70 managed by the charging control device of the present invention may be plural, and may include, for example, a first apartment housing complex 71 and a second apartment housing complex 72 . In the first apartment housing complex 71 and the second apartment housing complex 72, power is distributed by one first switchboard 110 located upstream of the power system 10, or a plurality of first switchboards 110 ), power can be distributed respectively.

Electricity supplied to the apartment complex 70 can be distributed to facilities in the apartment complex 70 including electric vehicle chargers L1, L2, and L3 through the switchboard 120 installed in the apartment complex 70. there is.

The facilities in the apartment complex 70 may include at least one of each household, a facility for each household, a common facility, and electric vehicle chargers L1 to L3.

Facilities for each household that consume electricity may include outlets, lighting fixtures, home appliances, etc., and facilities for each household that consume electricity include domestic hot water circulation facilities that supply hot water supplied by district heating to households, tap water Water supply facilities that receive water from tanks and supply cold water from water tanks to households, heating facilities such as floor heating and pipe hot water, home networks of each household, and emergency power sources such as communication terminals may be included.

Common facilities include community facilities such as libraries, gyms, and senior citizen centers, exhaust fans that supply outdoor air to underground parking lots and ventilate bets to the outside, drainage facilities that discharge underground water and rainwater to external drainage pipes, lighting for each building's stairs, and lighting for underground parking lots. And freeze-proof heating wires such as outlets and water pipes may be included.

On the power supply side for supplying or distributing power to the power system 10, a power exchange that can supply power to the power system or issue a demand response (DR) issue when necessary, or a power exchange produced by the power exchange, such as KEPCO A power plant that supplies power may be included.

On the side receiving or receiving power from the power system 10, real-time reduction control and remote management in relation to the consumer who is a power consumer or the consumer can be performed, and demand resources can be recruited, registered, or managed in relation to the power exchange. Demand management service providers may be included. A consumer may be a subject of power consumption and may be a subject of a new supply source that supplies power to a system including solar or electric vehicles. Consumers may be owners or users of each load of the present invention, and may belong to individual consumers in a group unit including a plurality of loads. The demand management service provider is located between the power supply side and the consumer based on the power system 10 and can control power supplied to the consumer through the power system 10 .

The voltage control device of the present invention may include a central management unit 400 and a local management unit 300 . The central management unit 400 is located separately from the multi-unit housing complex 70, and can also manage a plurality of multi-unit housing complexes 70.

In the first switchboard 110 or the second switchboard 120, an Air Circuit Breaker (ACB), a power breaker using air of a low-voltage power circuit, a Vacuum Circuit Breaker (VCB), a power breaker using vacuum of a high-voltage power circuit, and a high-voltage power circuit A potential transformer (PT) that reduces the voltage of a circuit to a low voltage to measure various electrical data, or a current transformer (CT) that converts the current of a large current circuit into a small current to measure current data may be included. .

The voltage control device of the present invention may be controlled by a demand management company that manages the power quality of the apartment complex 70 . The demand management business operator can transmit/receive data and signals with the local management unit 300 provided in each apartment housing complex 70 through the central management unit 400 .

Referring to (a) of FIG. 3, generally, the supply capacity contracted with the power supply source of the power system 10 by the apartment complex 70 is the allowable capacity of the transformer 240 installed in the apartment complex 70. It may be within, and may be set or contracted higher than the maximum demand among the demand patterns of the apartment complex 70.

The demand pattern may be a consumption pattern of electricity consumed by the apartment complex 70 . The maximum demand may be the largest value among the demand patterns of the apartment complex 70 consumed for a predetermined period of time, such as a city, a week, or a year. Since the supply capacity, which is power supplied for emergencies such as power outages, is set higher than the maximum demand, much of the power supplied to the multi-family housing complex 70 may be wasted outside of the time period when the maximum demand occurs.

A data collection unit 500 that collects power data of the apartment complex 70 and a data storage unit 600 that stores and stores the power data of the apartment complex 70 may be provided.

A pattern analyzer 340 may be provided to analyze the demand pattern of the apartment complex 70 . The pattern analysis unit 340 may use power data of the data collection unit 500 and the data storage unit 600 for demand pattern analysis.

The demand pattern may include the consumption demand of each household of the apartment complex 70, the consumption demand of the common part of the apartment complex 70, and the electric vehicle charging amount D21 of the electric vehicle chargers L1 to L3.

The pattern analysis unit 340 analyzes demand patterns according to time by city, state, and year, analyzes demand patterns for electric vehicle chargers in parking lots adjacent to the dong to which each household belongs, and analyzes demand patterns for electric vehicles owned by each household. At least one of the assays may be performed.

The charging control device may include a power storage unit 320 capable of storing power that can be charged or produced in the apartment complex 70 . Power generated or charged in the multi-family housing complex 70 may be transmitted back to the power system 10 or the power storage unit 320 installed in the multi-unit housing complex.

Supplying power to the apartment complex 70 may include electric vehicle chargers L1 to L3 or a renewable energy generator 700 in addition to the power system 10 .

The multi-unit housing complex 70 may be equipped with a renewable energy generation unit 700 that can be installed on a landscaping facility or a rooftop of the multi-unit housing complex 70 and can produce renewable energy including sunlight and wind power. .

The power surplus storage amount D10, which is the power stored in the power storage unit 320, is the electric vehicle surplus storage amount D11 of the electric vehicle (EV) parked in the apartment complex 70, or the renewable energy generator installed in the apartment complex 70 It may include the amount of renewable energy generation (D12) generated in 700.

Therefore, the charging control device of the present invention can lower the supply capacity supplied from the power supply side by using the surplus power storage amount D10, and as a result, it can be operated so that the electricity cost paid by the apartment complex 70 is reduced.

A supply capacity that is generally set above the operating maximum demand may be referred to as a first supply capacity. The first supply capacity may be within the allowable capacity of the transformer 240 of the apartment house 70 and may be greater than or equal to the maximum demand of the demand pattern.

The surplus power storage amount D10 stored in the power storage unit 320 is calculated through the demand pattern or demand pattern analysis provided by the data collection unit 500, the data storage unit 600, and the pattern analysis unit 340 It can be.

Referring to (b) of FIG. 3 , the apartment complex 70 may set or contract to receive power from a power supply source, which is an upper system of the power system 10, as a second supply capacity.

The second supply capacity may be applied when power is supplied to the power storage unit 320 of the apartment complex 70 to be charged or stored. This is when the electric power stored in the electric vehicle (EV) in the apartment complex 70 is supplied to the power storage unit 320 or the power system through the electric vehicle chargers L1 to L3, or the renewable energy generation unit 700 for landscaping facilities, etc. may be installed.

The second supply capacity may be determined from the first supply capacity previously contracted to receive supply and the surplus power storage amount D1.

The first supply capacity may be supply power contracted between the apartment complex 10 and the power supply source when only electricity is consumed like water by the apartment complex 10 without the power storage unit 320 . In contrast, the second supply capacity is newly set from the first supply capacity in consideration of the electric vehicle chargers (L1 to L3), the renewable energy generator 700, the power storage unit 320, or the surplus power storage (D10) Alternatively, it may be a contracted power supply.

Accordingly, the second supply capacity may be smaller than the maximum demand, and thus, the electricity cost to be borne by the apartment complex 70 may be reduced.

As a result, the apartment housing complex 70 can receive power supply with a second supply capacity lower than the existing first supply capacity by the power supply source, and operation calculated using the second supply capacity and the power surplus storage amount D10 It can be powered, operated, or managed by electricity.

Accordingly, operating power may be set to satisfy a demand pattern, which is a pattern of power consumed by the apartment complex 70 . That the operating power satisfies the demand pattern may mean that the operating power is set higher than the demand pattern so that sufficient electricity is supplied so that an emergency such as a blackout does not occur.

On the other hand, the electric vehicle charger (L) may be installed by a demand management company that manages the charging control device of the present invention. The electric vehicle user can separate the connector mounted on the electric vehicle charger (L), connect it to the electric vehicle (EV), and charge after mutual transmission and reception between the electric vehicle charger (L) and the electric vehicle (EV) through a connector or wireless communication.

Unlike this, the electric vehicle charging method may include a method in which an electric vehicle user plugs an integrated type charger of a separate connector and terminal into an outlet provided in a parking lot without an electric vehicle charger (L) infrastructure facility and charges the electric vehicle. The user can charge the battery through the authentication process of the terminal. In this case, the demand management service provider who manages the charging control device of the present invention may cooperate with the terminal company for management, or the demand management service provider may provide the terminal itself.

Demand management business operators can receive data of electric power charged from an electric vehicle charger (L) or a connector-integrated terminal, and regardless of the above two types of charging methods, use this to analyze the demand pattern of the apartment complex 70 or manage.

10 ... power system 30 ... power line
40... communication line 70... apartment complex
71... 1st apartment complex 72... 2nd apartment complex
100... switchboard 110... first switchboard
120... second switchboard 240... transformer
300 ... local management unit 301 ... first local management unit
302... second local management unit 320... power storage unit
340... pattern analysis unit 400... central management unit
470... charging scheduling unit 500... data collection unit
600 ... data storage unit 700 ... renewable energy generation unit
L1... 1st charger L2... 2nd charger
EV1... 1st electric vehicle EV2... 2nd electric vehicle

Claims (11)

Power supplied from the power system is distributed to a plurality of apartment complexes, which are downstream nodes of the power system,
The power supplied to the multi-unit housing complex is distributed to facilities in the multi-unit housing complex through switchboards installed in the multi-unit housing complex,
a pattern analyzer that analyzes a demand pattern, which is a pattern of power consumed in the apartment complex;
a charging scheduling unit for adjusting a charging time of an electric vehicle charger installed in the apartment complex; including,
The charging demand of the apartment complex is distributed by the pattern analysis unit and the charging scheduling unit,
The charging scheduling unit sets an objective function for distributing the charging demand of the apartment complex,
The objective function includes at least one of a maximum demand of the demand pattern, a difference between a maximum demand and a minimum demand of the demand pattern, a variance value of the demand pattern, and a charging cost,
Wherein the charging scheduling unit calculates a charging start time of the electric vehicle charger that minimizes the objective function.
According to claim 1,
The demand pattern is classified into a basic pattern and a charging pattern,
The basic pattern includes the consumption demand of each household in the apartment complex and the consumption demand of the common part of the apartment house,
The charging pattern includes an electric vehicle charging amount of an electric vehicle charger installed in the apartment complex,
The charging scheduling unit sets the charging time of the electric vehicle charger to minimize the difference between maximum demand and minimum demand of the demand pattern by setting the basic pattern analyzed by the pattern analyzer as a fixed value and the charging pattern as a variable value. charging control device.
According to claim 1,
The demand pattern includes the consumption demand of each household in the apartment complex, the consumption demand of the common part of the apartment house, and the electric vehicle charging amount of the electric vehicle charger,
Wherein the charge scheduling unit reduces a difference between a maximum demand and a minimum demand among demand patterns of the apartment complex based on the demand pattern analysis by the pattern analyzer and flattens the demand pattern according to time.
delete According to claim 1,
The charge scheduling unit has a first mode and a second mode,
In the first mode, the charging start time calculated by the charging scheduling unit is collectively applied to electric vehicles parked in the apartment complex,
In the second mode, the charging start time calculated by the charging scheduling unit is delayed differently in consideration of the electric vehicle user's selection to charge.
According to claim 1,
The charging scheduling unit delays the charging start order of the electric vehicles parked in the multi-family housing complex in consideration of the selections of electric vehicle users to charge, respectively;
The selection includes at least one of slow charging or rapid charging, a charging completion time, and a charging amount.
According to claim 1,
The electric vehicles of each household in the apartment complex are charged by the electric vehicle charger after being automatically authenticated by the recognition means,
The recognition means includes the pass of the apartment complex,
The amount of electric vehicle charge consumed by each household is added to the management fee notice of the apartment complex and notified for each household,
The charging control device that provides reduction or discount benefits to households in which the charging scheduling unit selects slow charging or permits reverse transmission of the electric power stored in the battery of the electric vehicle to the power storage unit of the apartment complex.
Power supplied from the power system is distributed to a plurality of apartment complexes, which are downstream nodes of the power system,
The power supplied to the multi-unit housing complex is distributed to facilities in the multi-unit housing complex through switchboards installed in the multi-unit housing complex,
a pattern analyzer that analyzes a demand pattern, which is a pattern of power consumed in the apartment complex;
a charging scheduling unit for adjusting a charging time of an electric vehicle charger installed in the apartment complex; including,
The charging demand of the apartment complex is distributed by the pattern analysis unit and the charging scheduling unit,
The apartment complex is set to receive power from a power supply source, which is an upper system of the power system, as a second supply capacity,
The first supply capacity is within the transformer allowable capacity of the apartment house and is greater than or equal to the maximum demand of the demand pattern,
The power surplus storage amount is the power stored in the power storage unit installed in the apartment complex,
The second supply capacity is determined from the first supply capacity and the power surplus storage amount,
The second supply capacity is less than the maximum demand charge control device.
According to claim 8,
The multi-unit housing complex includes a renewable energy generation unit provided on a landscaping facility or rooftop of the multi-unit housing complex and generating renewable energy including sunlight and wind power,
The electric vehicle charger can transmit the surplus electric power stored in the electric vehicle battery back to the power storage unit of the apartment complex or the power system, and the renewable energy generation unit transmits the generated renewable energy back to the power storage unit or the power system possible,
The surplus storage amount of electricity includes a surplus storage amount of electric vehicles of electric vehicles parked in the apartment complex or a renewable energy generation amount generated by a renewable energy generator installed in the apartment complex.
Power supplied from the power system is distributed to a plurality of apartment complexes, which are downstream nodes of the power system,
The power supplied to the multi-unit housing complex is distributed to facilities in the multi-unit housing complex through switchboards installed in the multi-unit housing complex,
a pattern analyzer that analyzes a demand pattern, which is a pattern of power consumed in the apartment complex;
a charging scheduling unit for adjusting a charging time of an electric vehicle charger installed in the apartment complex; including,
The charging demand of the apartment complex is distributed by the pattern analysis unit and the charging scheduling unit,
The demand pattern is classified into a basic pattern and a charging pattern,
The basic pattern includes the consumption demand of each household in the apartment complex and the consumption demand of the common part of the apartment house,
The charging pattern includes an electric vehicle charging amount of an electric vehicle charger installed in the apartment complex,
The charging control device for distributing the charging amount of the electric vehicle of the charging pattern so that the charging scheduling unit fills a local minimum point of the basic pattern.
Power supplied from the power system is distributed to a plurality of apartment complexes, which are downstream nodes of the power system,
The power supplied to the multi-unit housing complex is distributed to facilities in the multi-unit housing complex through switchboards installed in the multi-unit housing complex,
a pattern analyzer that analyzes a demand pattern, which is a pattern of power consumed in the apartment complex;
a charging scheduling unit for adjusting a charging time of an electric vehicle charger installed in the apartment complex; including,
The charging demand of the apartment complex is distributed by the pattern analysis unit and the charging scheduling unit,
An upper voltage limit and a lower voltage limit of the multi-unit housing complex are set to prevent an emergency including a power outage of the multi-unit housing complex,
The charging control device, wherein the charging scheduling unit causes a local maximum point of the voltage of the apartment complex to move away from the upper voltage limit and a local minimum point of the voltage of the apartment complex to move away from the lower voltage limit.

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