WO2013122372A1 - Distributed power generating system and method for controlling same - Google Patents

Distributed power generating system and method for controlling same Download PDF

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Publication number
WO2013122372A1
WO2013122372A1 PCT/KR2013/001100 KR2013001100W WO2013122372A1 WO 2013122372 A1 WO2013122372 A1 WO 2013122372A1 KR 2013001100 W KR2013001100 W KR 2013001100W WO 2013122372 A1 WO2013122372 A1 WO 2013122372A1
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Prior art keywords
power
unit
storage device
power supply
grid
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PCT/KR2013/001100
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French (fr)
Korean (ko)
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최진영
박은성
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에스케이이노베이션 주식회사
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Publication of WO2013122372A1 publication Critical patent/WO2013122372A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin

Definitions

  • the present invention relates to a distributed power generation system and a control method thereof, and more particularly, by using a spare power unit in which surplus power generated in excess power is stored in a power supply unit, using surplus power previously stored in a time zone where power consumption is high.
  • the present invention relates to a distributed power generation system and a control method for improving energy efficiency.
  • the surplus power generated by the power generation is stored in the storage device, and then appropriately added using the remaining capacity of the stored storage device.
  • a distributed generation system for providing power is provided.
  • Korean Laid-Open Patent No. 2011-0070654 (“Smart Energy Management Device and Method for Controlling Power Consumption”, Prior Art 1) has been developed in the field of smart grids without additional installation of energy production and supply facilities due to the continuous increase in energy consumption. By remotely collecting energy consumption and analyzing energy consumption patterns, the company is using a current facility to supply energy to meet customer needs. However, since the prior art 1 analyzes an energy consumption pattern for a predetermined time and supplies energy according to the pattern, there is a problem in that energy efficiency is inferior because the excess power cannot be used.
  • An object of the present invention is to store the surplus power in the storage device that is over-produced and not used properly, and to control the storage device in which the surplus power is stored, the use order is determined according to the remaining capacity of each storage device It is to provide a distributed generation system that can be used.
  • At least one power supply unit for generating electric power, at least one system unit consuming power produced by the power supply unit, excess power generated in excess of the power supply unit are stored, and at least one At least one preliminary power unit consisting of a storage device and the power supply unit, the grid unit and at least one grid unit for controlling the flow of power produced by the power supply unit is configured to include.
  • the surplus power stored in the storage unit of the reserve power unit is retransmitted to the grid unit and the surplus power is applied to the grid unit through the grid unit. It is preferable.
  • the backup power unit may include a control unit, and the control unit may determine the use priority of the storage device by using a state of charge (SOC) of the storage device.
  • SOC state of charge
  • a power requesting step in which additional power consumption is required in a system unit in which power generated by a power supply is consumed, and surplus power produced in the power supply unit are stored, and include at least one storage device.
  • SOC calculation step of calculating a State Of Charge SOC determination step of determining whether the remaining capacity of the storage device calculated in the SOC calculation step is more than a predetermined reference level, the remaining capacity of the storage device in the SOC determination step is a predetermined criterion If it is determined to be above the level, the necessary dog calculated in the storage device calculation step.
  • the storage device added after a predetermined time is preferably performed from the SOC calculation step.
  • the predetermined criterion is more preferably 10 to 90% of the remaining capacity of the storage device.
  • the predetermined time is more preferably between 4 seconds and 60 minutes after the storage device is added.
  • the distributed power generation system of the present invention having the above configuration utilizes the remaining capacity (SOC, State Of Charge) of each storage device constituting the reserve power unit in order to use the surplus power stored in the reserve power unit by overproduction.
  • SOC State Of Charge
  • By controlling the redundant power unit there is an effect that can determine the priority for the use of surplus power.
  • At least one storage device constituting the reserve power unit as a virtual generator, it is possible to quickly respond to changes in power demand and changes in supply amount in real time.
  • FIG. 1 is a view briefly showing the configuration of a distributed generation system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart illustrating a method for controlling distributed generation according to an embodiment of the present invention.
  • FIG. 3 is a view showing in detail the configuration of a distributed generation system according to an embodiment of the present invention.
  • FIG. 1 is a view briefly showing the configuration of a distributed generation system according to an embodiment of the present invention.
  • Distributed generation system comprises a power supply unit 100, the grid unit 200, the reserve power unit 300 and the grid unit 400.
  • the power supply unit 100 may use a renewable energy generation system as a device for producing and supplying power.
  • Renewable energy generation system usually uses solar power or wind power as a resource for generating power, and the amount of power generation and the timing of power generation are irregular. Therefore, in some cases, the surplus power that is over-produced or the surplus power remaining in the late night is stored in the power storage device, and used during peak hours during the day when the power consumption is high, thereby reducing the overload of the power supply unit 100 and improving energy use efficiency. Can be.
  • the grid unit 200 is a device that consumes power produced by the power supply unit 100, and as a grid device in which power is consumed, a power plant, a substation, and a transmission line may be viewed.
  • the backup power unit 300 includes at least one or more storage devices, and each storage device stores surplus power that is excessively produced by the power supply unit 100. If the power generated by the power supply unit 100 and consumed by the grid unit 200 is insufficient, the excess power generated by the power supply unit 100 stored in the storage device of the preliminary power unit 300 is overlaid with the grid unit. Retransmit to 400.
  • the grid unit 400 connects the power supply unit 100, the grid unit 200, and the backup power unit 300 to each other, and may control the flow of power generated by the power supply unit 100. That is, the power generated by the power supply unit 100 may be applied to the grid unit 200 through the grid unit 400 and consumed, and the power excessively produced by the power supply unit 100 may be consumed through the grid unit 400.
  • the reserve power unit 300 may be stored. In addition, surplus power stored in the storage device of the reserve power unit 300 may be retransmitted to the grid unit 200 through the grid unit 400. In this case, when the redundant power unit 300 includes a plurality of storage devices, the priority may be determined to smoothly transfer surplus power to the system unit 200.
  • the reserve power unit 300 may include a controller 310, and the controller 310 may include remaining capacity of each storage device constituting the reserve power unit 300. That is, the priority of the storage device may be determined in supplying surplus power to the system unit 200 using a state of charge (SOC). At this time, the priority is preferably to supply the surplus power to the system unit 200 in the order of the storage device having a large residual capacity.
  • SOC state of charge
  • the distributed generation system consumes or generates excess power generated by the power supply unit 100 through bidirectional real-time information exchange between the power supply unit 100 as a power supplier and the grid unit 200 as a consumer.
  • the surplus power produced in the reserve power unit 300 it is an intelligent distributed power generation system that optimizes the consumption efficiency of the produced power.
  • the inventors of the distributed power generation control method when the grid unit 200 requires additional power consumption, each of the remaining for the storage device of the spare power unit 300, the surplus power is over-produced in the power supply unit 100 is stored
  • the distributed power generation control method of controlling the backup power unit 300 by calculating a capacity (SOC) and determining a use order of the storage device of the backup power unit 300 accordingly.
  • the backup power unit 300 preferably includes at least one or more storage devices.
  • the storage device forming the preliminary power unit 300 is an electric vehicle and an energy storage system (ESS), and the electric vehicle is an electric vehicle (EV), a hybrid electric vehicle (HEV), Plug-in hybrid electric vehicles (PHEVs), neighboring electric vehicles (NEVs), and the like.
  • ESS energy storage system
  • EV electric vehicle
  • HEV hybrid electric vehicle
  • PHEVs Plug-in hybrid electric vehicles
  • NEVs neighboring electric vehicles
  • V2G Vehicle To Grid
  • the power produced by the power supply unit 100 is applied to the grid unit 200 through the grid unit 400, and at this time, additional power is required for the applied power, or the power distribution transformer is out of power. Power may be required for use as a backup backup power source.
  • Storage device calculation step (S220) is composed of at least one or more storage devices, the additional power consumption required in the power request step (S210) from the reserve power unit 300, the surplus power is over-produced in the power supply unit 100 is stored
  • the number of storage devices needed to provide it is calculated. That is, the system 200 may provide the surplus power stored in the rapid or slow charger without being used in the current electric vehicle. Fully charged electric vehicles can also be used. In addition, when the electric vehicle is discharged during operation, it can be quickly charged through an emergency road vehicle (ERS-EV, Emergency Road Service-Electric Vehicle). In this case, the number of storage devices may be expressed by the following equation.
  • Number of storage devices power required / 3kw
  • the remaining capacity of each storage device configuring the backup power unit 300 is calculated.
  • the SOC determination step S240 determines whether the remaining capacity of the storage device of the preliminary power unit 300 calculated in the SOC calculation step S230 is greater than or equal to a predetermined criterion.
  • the predetermined criterion means that the remaining capacity of the storage device is total. It may be 10 to 90% of the battery capacity, and the predetermined standard may be changed in consideration of the life characteristics corresponding to each storage device and the remaining capacity tolerance rate for the storage device of the battery management system (BMS). have. If the remaining capacity of the storage device is less than or equal to a predetermined reference value through the SOC determination step S240, the stored surplus power is not used by the system unit 400 and is maintained in the storage device. In other words, in the case of an electric vehicle whose remaining capacity is below a predetermined criterion, it is eliminated from the V2G resource.
  • the priority determining step S250 when it is determined in the SOC determination step S240 that the remaining capacity of the storage device of the spare power unit 300 is equal to or greater than a predetermined reference level, the additional power consumption calculated in the storage device calculating step S220.
  • the storage device constituting the reserve power unit 300 may be selected as many as the number of storage devices required to provide the power, and the priority is preferably to supply surplus power in order of storage devices having a large remaining capacity.
  • the surplus power stored according to the use priority of the storage device selected in the priority determination step (S250) is applied to the system unit 200.
  • a storage device may be added to the reserve power unit 300. That is, when an electric vehicle is added, a predetermined time must be passed to be used as a resource of the V2G, and the predetermined time can be a suitable time between 4 seconds and 60 minutes. The added storage device may be last applied in priority for providing additional power consumption.
  • the unit of control time is at least 4 seconds, so the predetermined time can be said to be at least 4 seconds to 60 minutes. You can also keep In addition, the predetermined time may be selected to be changed according to the life characteristic of each storage device according to the storage device.
  • the distributed power generation control method of the present invention if additional power consumption is demanded by the system unit 200 by using the remaining capacity of at least one storage device constituting the reserve power unit 300, the remaining capacity may be increased in order.
  • Stored surplus power can be applied to the grid unit 200, and since each storage device plays a role of a virtual power plant (VPP), it is necessary to upgrade a large-scale infrastructure facility required when building an actual power plant. There will be no. This makes it easy to respond to changing customer power demands and forecasting supply changes in real time.
  • VPP virtual power plant

Abstract

The present invention relates to a distributed power generating system and to a method for controlling same and, particularly, to a distributed power generating system comprising: at least one power supply unit for generating power; at least one system unit for consuming the power generated in the power supply unit; at least one reserve power unit for storing surplus power generated in the power supply unit, and configured from at least one storage device; and at least one grid unit connecting the power supply unit, the system unit, and the reserve power unit, and at least one grid unit for controlling the flow of power generated in the power supply unit.

Description

분산 발전 시스템 및 그 제어 방법 Distributed generation system and its control method
본 발명은 분산 발전 시스템 및 그 제어 방법에 관한 것으로, 더 상세하게는 전력 공급부에서 과잉 생산된 잉여 전력이 저장되는 예비 전력부를 이용하여, 전력 소모량이 많은 시간대에 미리 저장되어 있던 잉여 전력을 이용함으로써, 에너지의 효율성을 높이는 분산 발전 시스템 및 그 제어 방법에 관한 것이다.The present invention relates to a distributed power generation system and a control method thereof, and more particularly, by using a spare power unit in which surplus power generated in excess power is stored in a power supply unit, using surplus power previously stored in a time zone where power consumption is high. The present invention relates to a distributed power generation system and a control method for improving energy efficiency.
최근들어 스마트 그리드(Smart Grid)의 실증 단지가 조성되고 시범 운영 중이다. 스마트 그리드의 개념 중에 전력을 저장한다는 개념은 가장 중요한 개념 중 하나이며, 신재생에너지를 통해 만들어지는 간헐적이고 불안정한 전력의 품질 향상과 이를 통해 생산되는 전력을 유동적으로 사용할 수 있어야 한다. 하지만 이러한 시설을 구축하기 위해서는 새로운 대규모의 인프라 구축이 불가피한 상황이다.Recently, a demonstration complex for the Smart Grid has been established and is in operation. The concept of storing power among the concept of smart grid is one of the most important concepts, and the quality of intermittent and unstable power generated by renewable energy and the power generated through this should be flexible. However, to build such a facility, it is inevitable to build a new large-scale infrastructure.
본 발명은 이러한 생산되는 전력의 품질 향상과 유동적으로 생산된 전력을 사용하기 위하여, 발전을 통해 과잉 생산되는 잉여 전력을 저장 장치에 저장한 뒤, 저장 해둔 저장 장치의 잔존 용량을 이용하여 적절하게 추가 전력을 제공하는 분산 발전 시스템에 관한 것이다.According to the present invention, in order to improve the quality of the generated power and to use the power generated in a flexible manner, the surplus power generated by the power generation is stored in the storage device, and then appropriately added using the remaining capacity of the stored storage device. A distributed generation system for providing power.
한국 공개 특허 2011-0070654호(“전력 소비를 제어하는 스마트 에너지 관리 장치 및 그 방법”, 선행기술 1)는 에너지 사용량의 지속적인 증가에 따른 에너지 생산 및 공급 설비를 추가 설치하지 않고도, 스마트 그리드 분야에서 원격으로 에너지 소비량을 수집 및 에너지 소비 패턴을 분석함으로써 현재의 설비를 이용하여 고객의 요구를 맞추어 에너지를 공급할 수 있는 구조를 개시하고 있다. 그러나 선행기술 1은 일정시간 동안 에너지 소비 패턴을 분석하여 그 패턴에 맞게 에너지를 공급하기 때문에 과잉 생산되는 잉여 전력을 이용하지 못하기 때문에 에너지 효율성이 떨어지는 문제점이 있다.Korean Laid-Open Patent No. 2011-0070654 (“Smart Energy Management Device and Method for Controlling Power Consumption”, Prior Art 1) has been developed in the field of smart grids without additional installation of energy production and supply facilities due to the continuous increase in energy consumption. By remotely collecting energy consumption and analyzing energy consumption patterns, the company is using a current facility to supply energy to meet customer needs. However, since the prior art 1 analyzes an energy consumption pattern for a predetermined time and supplies energy according to the pattern, there is a problem in that energy efficiency is inferior because the excess power cannot be used.
본 발명의 목적은 과잉 생산되어 제대로 이용되지 못하는 잉여 전력을 저장 장치에 저장하고, 잉여 전력이 저장되어 있는 저장 장치를 제어함에 있어서, 각각의 저장 장치의 잔존 용량에 따라 사용 순서를 정해 잉여 전력이 이용될 수 있도록 하는 분산 발전 시스템을 제공하는 것이다.An object of the present invention is to store the surplus power in the storage device that is over-produced and not used properly, and to control the storage device in which the surplus power is stored, the use order is determined according to the remaining capacity of each storage device It is to provide a distributed generation system that can be used.
본 발명에 따른 분산 발전 시스템은 전력을 생산하는 적어도 하나의 전력 공급부, 상기 전력 공급부에서 생산되는 전력을 소비하는 적어도 하나의 계통부, 상기 전력 공급부에서 과잉 생산되는 잉여 전력이 저장되며, 적어도 하나의 저장 장치로 이루어지는 적어도 하나의 예비 전력부 및 상기 전력 공급부, 계통부 및 예비 전력부를 연결하며, 상기 전력 공급부에서 생산되는 전력의 흐름을 제어하는 적어도 하나의 그리드부를 포함하여 구성된다.In the distributed generation system according to the present invention, at least one power supply unit for generating electric power, at least one system unit consuming power produced by the power supply unit, excess power generated in excess of the power supply unit are stored, and at least one At least one preliminary power unit consisting of a storage device and the power supply unit, the grid unit and at least one grid unit for controlling the flow of power produced by the power supply unit is configured to include.
상기 예비 전력부는 상기 계통부에서 소비하기 위해 상기 전력 공급부에서 인가된 전력이 부족하면, 상기 예비 전력부의 저장 장치에 저장된 잉여 전력이 상기 그리드부로 재전송되고 상기 잉여 전력은 상기 그리드부를 통해 계통부로 인가되는 것이 바람직하다.When the power supplied by the power supply unit is insufficient for consumption by the grid unit, the surplus power stored in the storage unit of the reserve power unit is retransmitted to the grid unit and the surplus power is applied to the grid unit through the grid unit. It is preferable.
상기 예비 전력부는 제어부를 포함하되, 상기 제어부는 상기 저장 장치의 잔존 용량(SOC, State Of Charge)을 이용하여 상기 저장 장치의 사용 우선 순위를 결정하는 것이 바람직하다.The backup power unit may include a control unit, and the control unit may determine the use priority of the storage device by using a state of charge (SOC) of the storage device.
본 발명에 따른 분산 발전의 제어 방법은 전력 공급부에서 생산된 전력이 소비되는 계통부에서 추가 소비 전력이 요구되는 전력 요구 단계, 상기 전력 공급부에서 생산된 잉여 전력이 저장되며, 적어도 하나 이상의 저장 장치로 이루어지는 예비 전력부에서 상기 전력 요구 단계에서 요구된 추가 소비 전력을 제공하기 위해 필요한 상기 저장 장치의 개수가 계산되는 저장 장치 계산 단계, 상기 예비 전력부를 이루고 있는 상기 저장 장치의 각각의 잔존 용량(SOC, State Of Charge)이 계산되는 SOC 계산 단계, 상기 SOC 계산 단계에서 계산된 상기 저장 장치의 잔존 용량이 소정 기준 수준 이상인지 판단되는 SOC 판단 단계, 상기 SOC 판단 단계에서 상기 저장 장치의 잔존 용량이 소정 기준 수준 이상이라고 판단되면, 상기 저장 장치 계산 단계에서 계산된 필요한 개수만큼의 상기 저장 장치를 상기 SOC 계산 단계에서 계산된 잔존 용량을 통해 사용 우선 순위를 결정하는 우선 순위 결정 단계 및 상기 우선 순위 결정 단계에서 결정된 상기 저장 장치의 사용 우선 순위에 따라 저장된 잉여 전력이 계통부에 인가되는 예비 전력 공급 단계를 포함하여 이루어지는 것이 바람직하다.In the method for controlling distributed generation according to the present invention, a power requesting step in which additional power consumption is required in a system unit in which power generated by a power supply is consumed, and surplus power produced in the power supply unit are stored, and include at least one storage device. A storage device calculation step of calculating the number of the storage devices required to provide the additional power consumption required in the power requesting step in the backup power unit; and the remaining capacity (SOC) of each of the storage devices forming the backup power unit. SOC calculation step of calculating a State Of Charge, SOC determination step of determining whether the remaining capacity of the storage device calculated in the SOC calculation step is more than a predetermined reference level, the remaining capacity of the storage device in the SOC determination step is a predetermined criterion If it is determined to be above the level, the necessary dog calculated in the storage device calculation step The redundant power stored according to the use priority of the storage device determined in the prioritizing step and the prioritizing step of determining the use priority based on the remaining capacity calculated in the SOC calculation step. It is preferable to include a preliminary power supply step applied to.
상기 분산 발전의 제어 방법은 상기 예비 전력부에 저장 장치가 추가될 경우, 소정 시간 후부터 추가된 상기 저장 장치가 상기 SOC 계산 단계부터 수행되는 것이 바람직하다.In the distributed power generation control method, when a storage device is added to the spare power unit, the storage device added after a predetermined time is preferably performed from the SOC calculation step.
상기 소정 기준은 상기 저장 장치의 잔존 용량이 10 ~ 90% 인 것이 더 바람직하다.The predetermined criterion is more preferably 10 to 90% of the remaining capacity of the storage device.
상기 소정 시간은 상기 저장 장치가 추가 된 후부터 4초 ~ 60분 사이 인 것이 더 바람직하다.The predetermined time is more preferably between 4 seconds and 60 minutes after the storage device is added.
상기와 같은 구성에 의한 본 발명의 분산 발전 시스템은 과잉 생산되어 예비 전력부에 저장되어 있는 잉여 전력을 이용하기 위해서 예비 전력부를 구성하는 각각의 저장 장치의 잔존 용량(SOC, State Of Charge)을 이용하여 예비 전력부를 제어하므로, 잉여 전력의 사용을 위한 우선 순위를 정할 수 있는 효과가 있다.The distributed power generation system of the present invention having the above configuration utilizes the remaining capacity (SOC, State Of Charge) of each storage device constituting the reserve power unit in order to use the surplus power stored in the reserve power unit by overproduction. By controlling the redundant power unit, there is an effect that can determine the priority for the use of surplus power.
또한, 예비 전력부를 구성하는 적어도 하나의 저장 장치를 가상 발전기로 이용하여 전력 수요 변화와 실시간으로 공급량 변화에 빠른 대응을 할 수 있는 효과가 있다.In addition, by using at least one storage device constituting the reserve power unit as a virtual generator, it is possible to quickly respond to changes in power demand and changes in supply amount in real time.
도 1은 본 발명의 일 실시예에 따른 분산 발전 시스템의 구성에 대해 간략하게 나타낸 도면이다.1 is a view briefly showing the configuration of a distributed generation system according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따른 분산 발전의 제어 방법에 대한 순서도이다.2 is a flowchart illustrating a method for controlling distributed generation according to an embodiment of the present invention.
도 3은 본 발명의 일 실시예에 따른 분산 발전 시스템의 구성에 대해 상세하게 나타낸 도면이다.3 is a view showing in detail the configuration of a distributed generation system according to an embodiment of the present invention.
이하 첨부한 도면들을 참조하여 본 발명의 분산 발전 시스템 및 그 제어 방법을 상세히 설명한다. 다음에 소개되는 도면들은 당업자에게 본 발명의 사상이 충분히 전달될 수 있도록 하기 위해 예로서 제공되는 것이다. 따라서, 본 발명은 아래 제시되는 도면들에 한정되지 않고 다른 형태로 구체화될 수도 있다. 또한, 명세서 전체에 걸쳐서 동일한 참조번호들은 동일한 구성요소들을 나타낸다.Hereinafter, a distributed generation system and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings. The drawings introduced below are provided by way of example so that the spirit of the invention to those skilled in the art can fully convey. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other forms. Also, like reference numerals denote like elements throughout the specification.
이때, 사용되는 기술 용어 및 과학 용어에 있어서 다른 정의가 없다면, 이 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 통상적으로 이해하고 있는 의미를 가지며, 하기의 설명 및 첨부 도면에서 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 설명은 생략한다.At this time, if there is no other definition in the technical terms and scientific terms used, it has a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs, the gist of the present invention in the following description and the accompanying drawings Descriptions of well-known functions and configurations that may be unnecessarily blurred are omitted.
도 1은 본 발명의 일 실시예에 따른 분산 발전 시스템의 구성에 대해 간략하게 나타낸 도면이다.1 is a view briefly showing the configuration of a distributed generation system according to an embodiment of the present invention.
본 발명의 일 실시예에 따른 분산 발전 시스템은 전력 공급부(100), 계통부(200), 예비 전력부(300) 및 그리드부(400)를 포함하여 이루어진다.Distributed generation system according to an embodiment of the present invention comprises a power supply unit 100, the grid unit 200, the reserve power unit 300 and the grid unit 400.
도 1을 참조로 하여 본 발명의 일 실시예에 따른 분산 발전 시스템의 구성에 대해 상세하게 설명한다.Referring to Figure 1 will be described in detail the configuration of the distributed generation system according to an embodiment of the present invention.
전력 공급부(100)는 전력을 생산하여 공급하는 장치로서 신재생에너지 발전 시스템을 이용할 수 있다. 신재생에너지 발전 시스템은 그 발전을 함에 있어서 보통 태양력 또는 풍력을 자원으로 이용하여, 전력의 발전량과 발전 시점이 불규칙하다. 따라서, 경우에 따라 과잉 생산되는 잉여 전력 또는 심야에 남는 잉여 전력을 전력 저장 장치에 저장하여, 전력 소모량이 많은 낮의 피크 시간대에 사용함으로써 전력 공급부(100)의 과부하를 줄이고, 에너지 사용 효율을 높일 수 있다.The power supply unit 100 may use a renewable energy generation system as a device for producing and supplying power. Renewable energy generation system usually uses solar power or wind power as a resource for generating power, and the amount of power generation and the timing of power generation are irregular. Therefore, in some cases, the surplus power that is over-produced or the surplus power remaining in the late night is stored in the power storage device, and used during peak hours during the day when the power consumption is high, thereby reducing the overload of the power supply unit 100 and improving energy use efficiency. Can be.
계통부(200)는 전력 공급부(100)에서 생산되는 전력을 소비하는 장치이며, 전력이 소비되는 계통 장치로서 발전소, 변전소, 송전선 등을 볼 수 있다.The grid unit 200 is a device that consumes power produced by the power supply unit 100, and as a grid device in which power is consumed, a power plant, a substation, and a transmission line may be viewed.
예비 전력부(300)는 적어도 하나 이상의 저장 장치로 이루어지며, 각각의 저장 장치는 전력 공급부(100)에서 과잉 생산되는 잉여 전력이 저장된다. 전력 공급부(100)에서 생산, 공급되어 계통부(200)에서 소비되는 전력이 부족하면, 예비 전력부(300)의 저장 장치에 저장되어 있는 전력 공급부(100)에서 과잉 생산된 잉여 전력을 그리드부(400)로 재전송할 수 있다.The backup power unit 300 includes at least one or more storage devices, and each storage device stores surplus power that is excessively produced by the power supply unit 100. If the power generated by the power supply unit 100 and consumed by the grid unit 200 is insufficient, the excess power generated by the power supply unit 100 stored in the storage device of the preliminary power unit 300 is overlaid with the grid unit. Retransmit to 400.
그리드부(400)는 전력 공급부(100), 계통부(200) 및 예비 전력부(300)을 각각 서로 연결하며, 전력 공급부(100)에서 생산되는 전력의 흐름을 제어할 수 있다. 즉, 그리드부(400)를 통해 전력 공급부(100)에서 생산된 전력을 계통부(200)로 인가하여 소비할 수 있으며, 그리드부(400)를 통해 전력 공급부(100)에서 과잉 생산되는 전력이 예비 전력부(300)로 저장 될 수 있다. 또한, 그리드부(400)를 통해 예비 전력부(300)의 저장 장치에 저장되어 있는 잉여 전력이 계통부(200)로 재전송 될 수도 있다. 이때, 예비 전력부(300)에서 복수개의 저장 장치로 이루어진 경우, 잉여 전력을 원활하게 계통부(200)에 전달하기 위해서 우선 순위를 결정할 수 있다.The grid unit 400 connects the power supply unit 100, the grid unit 200, and the backup power unit 300 to each other, and may control the flow of power generated by the power supply unit 100. That is, the power generated by the power supply unit 100 may be applied to the grid unit 200 through the grid unit 400 and consumed, and the power excessively produced by the power supply unit 100 may be consumed through the grid unit 400. The reserve power unit 300 may be stored. In addition, surplus power stored in the storage device of the reserve power unit 300 may be retransmitted to the grid unit 200 through the grid unit 400. In this case, when the redundant power unit 300 includes a plurality of storage devices, the priority may be determined to smoothly transfer surplus power to the system unit 200.
도 3에 도시된 바와 같이, 예비 전력부(300)는 제어부(310)을 포함하여 구성될 수 있으며, 제어부(310)는 예비 전력부(300)를 구성하고 있는 각각의 저장 장치의 잔존 용량, 즉 SOC (State Of Charge)를 이용하여 계통부(200)에 잉여 전력을 공급함에 있어서 저장 장치의 우선 순위를 결정 할 수 있다. 이때, 우선 순위는 잔존 용량이 큰 저장 장치의 순서로 계통부(200)에 잉여 전력을 공급하는 것이 바람직하다.As illustrated in FIG. 3, the reserve power unit 300 may include a controller 310, and the controller 310 may include remaining capacity of each storage device constituting the reserve power unit 300. That is, the priority of the storage device may be determined in supplying surplus power to the system unit 200 using a state of charge (SOC). At this time, the priority is preferably to supply the surplus power to the system unit 200 in the order of the storage device having a large residual capacity.
다시 말하자면, 분산 발전 시스템은 전력 공급자인 전력 공급부(100)와 소비자인 계통부(200)간 양방향 실시간 정보 교환을 통하여 전력 공급부(100)에서 생산된 전력을 계통부(200)에서 소비되거나, 과잉 생산된 잉여 전력을 예비 전력부(300)에 저장함으로써, 생산된 전력의 소비 효율을 최적화하는 지능형 분산 발전 시스템이다.In other words, the distributed generation system consumes or generates excess power generated by the power supply unit 100 through bidirectional real-time information exchange between the power supply unit 100 as a power supplier and the grid unit 200 as a consumer. By storing the surplus power produced in the reserve power unit 300, it is an intelligent distributed power generation system that optimizes the consumption efficiency of the produced power.
도 2를 참조로 하여 본 발명의 일 실시예에 따른 분산 발전의 제어 방법에 대해 상세하게 설명한다.With reference to Figure 2 will be described in detail a control method of distributed generation according to an embodiment of the present invention.
본 발명인 분산 발전의 제어 방법은 계통부(200)에서 추가적인 소비 전력을 요구할 경우, 전력 공급부(100)에서 과잉 생산된 잉여 전력이 저장되어 있는 예비 전력부(300)의 저장 장치에 대한 각각의 잔존 용량(SOC, State Of Charge)을 계산하여 이에 따라 예비 전력부(300)의 저장 장치의 사용 순서를 결정함으로써 예비 전력부(300)를 제어하는 분산 발전의 제어 방법이다. 예비 전력부(300)는 적어도 하나 이상의 저장 장치로 이루어지는 것이 바람직하다.The inventors of the distributed power generation control method, when the grid unit 200 requires additional power consumption, each of the remaining for the storage device of the spare power unit 300, the surplus power is over-produced in the power supply unit 100 is stored The distributed power generation control method of controlling the backup power unit 300 by calculating a capacity (SOC) and determining a use order of the storage device of the backup power unit 300 accordingly. The backup power unit 300 preferably includes at least one or more storage devices.
본 발명의 일 실시예에 따른 예비 전력부(300)를 이루는 저장 장치는 전기 자동차와 에너지 저장 장치(ESS, Energy Storage System)이며, 전기 자동차는 EV(Electric Vehicle), HEV(Hybrid Electric Vehicle), PHEV(Plug-in Hybrid Electric Vehicle), NEV(Neighborhood Electric Vehicle) 등이 있다. 즉, V2G(Vehicle To Grid) 기술을 통해 전기 자동차에 전력 수요가 적은 심야 시간대에 급속 충전기 또는 완속 충전기를 통해 남는 잉여 전기를 자동차에 충전하고, 전력 수요가 많은 낮 시간의 피크 시간대에 역전송 하는 것이다.The storage device forming the preliminary power unit 300 according to an embodiment of the present invention is an electric vehicle and an energy storage system (ESS), and the electric vehicle is an electric vehicle (EV), a hybrid electric vehicle (HEV), Plug-in hybrid electric vehicles (PHEVs), neighboring electric vehicles (NEVs), and the like. In other words, V2G (Vehicle To Grid) technology allows the vehicle to charge surplus electricity remaining in a fast charger or a slow charger during late-night hours when the electric vehicle demands little power, and reverse transmission at peak times during the day when power demand is high. will be.
전력 요구 단계(S210)는 전력 공급부(100)에서 생산된 전력이 그리드부(400)를 통해서 계통부(200)로 인가되며, 이때 인가된 전력에 대해 추가적인 전력이 요구되거나, 배전용 변압기가 정전 시 백업 전원으로 사용하기 위하여 전력을 요구할 수도 있다.In the power requesting step (S210), the power produced by the power supply unit 100 is applied to the grid unit 200 through the grid unit 400, and at this time, additional power is required for the applied power, or the power distribution transformer is out of power. Power may be required for use as a backup backup power source.
저장 장치 계산 단계(S220)는 적어도 하나 이상의 저장 장치로 이루어지며, 전력 공급부(100)에서 과잉 생산된 잉여 전력이 저장되는 예비 전력부(300)로부터 전력 요구 단계(S210)에서 요구된 추가 소비 전력을 제공하기 위해 필요한 저장 장치의 개수가 계산된다. 즉, 계통부(200)에 현재 전기 자동차에서 사용되지 않고 급속 또는 완속 충전기를 통해 저장된 잉여 전력을 제공할 수 있다. 완충전된 전기 자동차도 사용할 수도 있다. 아울러, 전기 자동차가 운행 중 방전될 경우 전기차용 긴급 충전 차량(ERS-EV, Emergency Road Service - Electric Vehicle)를 통해 급속 충전을 할 수 있다. 이 때, 저장 장치의 개수는 하기의 식과 같이 표현될 수 있다.Storage device calculation step (S220) is composed of at least one or more storage devices, the additional power consumption required in the power request step (S210) from the reserve power unit 300, the surplus power is over-produced in the power supply unit 100 is stored The number of storage devices needed to provide it is calculated. That is, the system 200 may provide the surplus power stored in the rapid or slow charger without being used in the current electric vehicle. Fully charged electric vehicles can also be used. In addition, when the electric vehicle is discharged during operation, it can be quickly charged through an emergency road vehicle (ERS-EV, Emergency Road Service-Electric Vehicle). In this case, the number of storage devices may be expressed by the following equation.
저장 장치의 개수 = 요구되는 전력 / 3kwNumber of storage devices = power required / 3kw
이때, 3kw는 변경될 수 있다.At this time, 3kw may be changed.
SOC 계산 단계(S230)는 예비 전력부(300)를 구성하고 있는 각각의 저장 장치의 잔존 용량이 계산된다.In the SOC calculation step S230, the remaining capacity of each storage device configuring the backup power unit 300 is calculated.
SOC 판단 단계(S240)는 SOC 계산 단계(S230)에서 계산된 예비 전력부(300)의 저장 장치에 대한 잔존 용량이 소정 기준 이상인지 판단되며, 이때, 소정 기준이란, 저장 장치의 잔존 용량이 전체 배터리 용량의 10 ~ 90%로 할 수 있으며, 각각의 저장 장치에 해당하는 수명 특성 및 배터리 관리 시스템(BMS, Battery Management System)의 저장 장치에 대한 잔존 용량 허용 오차율을 감안하여 소정 기준이 변경될 수도 있다. SOC 판단 단계(S240)를 통해 저장 장치의 잔존 용량이 소정 기준 이하인 경우, 저장된 잉여 전력은 계통부(400)에서 사용하지 못하고, 저장 장치에 유지된다. 다시 말하면, 잔존 용량이 소정 기준 이하인 전기 자동차의 경우는 V2G 자원에서 탈락하게 된다.The SOC determination step S240 determines whether the remaining capacity of the storage device of the preliminary power unit 300 calculated in the SOC calculation step S230 is greater than or equal to a predetermined criterion. In this case, the predetermined criterion means that the remaining capacity of the storage device is total. It may be 10 to 90% of the battery capacity, and the predetermined standard may be changed in consideration of the life characteristics corresponding to each storage device and the remaining capacity tolerance rate for the storage device of the battery management system (BMS). have. If the remaining capacity of the storage device is less than or equal to a predetermined reference value through the SOC determination step S240, the stored surplus power is not used by the system unit 400 and is maintained in the storage device. In other words, in the case of an electric vehicle whose remaining capacity is below a predetermined criterion, it is eliminated from the V2G resource.
우선 순위 결정 단계(S250)는 SOC 판단 단계(S240)에서 예비 전력부(300)의 저장 장치에 대한 잔존 용량이 소정 기준 수준 이상이라고 판단되면, 저장 장치 계산 단계(S220)에서 계산된 추가 소비 전력을 제공하기 위해 필요한 저장 장치의 개수만큼 예비 전력부(300)를 이루는 저장 장치에서 선별할 수 있으며 우선 순위는 잔존 용량이 큰 저장 장치의 순서로 잉여 전력을 공급하는 것이 바람직하다.In the priority determining step S250, when it is determined in the SOC determination step S240 that the remaining capacity of the storage device of the spare power unit 300 is equal to or greater than a predetermined reference level, the additional power consumption calculated in the storage device calculating step S220. The storage device constituting the reserve power unit 300 may be selected as many as the number of storage devices required to provide the power, and the priority is preferably to supply surplus power in order of storage devices having a large remaining capacity.
예비 전력 공급 단계(S260)는 우선 순위 결정 단계(S250)에서 선별된 저장 장치의 사용 우선 순위에 따라 저장된 잉여 전력이 계통부(200)에 인가된다.In the preliminary power supply step (S260), the surplus power stored according to the use priority of the storage device selected in the priority determination step (S250) is applied to the system unit 200.
이때, 예비 전력부(300)에 저장 장치가 추가될 수 있다. 즉, 전기 자동차가 추가된 경우, 소정 시간이 지나야 V2G의 자원으로 채택되어 사용될 수 있으며, 여기서 소정 시간이란, 4초 ~ 60분 사이에 적당한 시간을 선택할 수 있다. 추가되는 저장 장치는 추가 소비 전력을 제공하기 위한 우선 순위에서 제일 마지막으로 적용될 수 있다. 분산발전시스템에서의주파수조정보조서비스의경우제어시간의단위가최소 4초이므로 소정 시간을 최소 4초에서 최대 60분이라고 할 수 있으며, 소정 시간이 지나고 나서 V2G의 자원이 됨으로써 저장 장치에 적당한 충전 시간을 유지할 수도 있다. 또한, 소정 시간은 저장 장치에 따라 각각의 저장 장치에 대한 수명 특성에 따라 변경되어 선택될 수도 있다.In this case, a storage device may be added to the reserve power unit 300. That is, when an electric vehicle is added, a predetermined time must be passed to be used as a resource of the V2G, and the predetermined time can be a suitable time between 4 seconds and 60 minutes. The added storage device may be last applied in priority for providing additional power consumption. In the case of the frequency control information service in the distributed power generation system, the unit of control time is at least 4 seconds, so the predetermined time can be said to be at least 4 seconds to 60 minutes. You can also keep In addition, the predetermined time may be selected to be changed according to the life characteristic of each storage device according to the storage device.
다시 말하면, 본 발명인 분산 발전의 제어 방법은 예비 전력부(300)를 구성하고 있는 적어도 하나의 저장 장치의 잔존 용량을 이용하여 계통부(200)에서 추가적인 소비 전력이 요구하면 잔존 용량이 많은 순서로 저장된 잉여 전력을 계통부(200)로 인가할 수 있으며, 각각의 저장 장치가 가상 발전소(VPP, Virtual Power Plant)의 역할을 수행하게 되므로, 실제 발전소를 구축 시 요구되는 대규모의 인프라 시설 업그레이드가 필요 없게 된다. 이를 통해, 고객의 전력 수요 변화 및 실시간으로 변하는 공급량 예측에 수월한 대응이 가능하게 된다.In other words, in the distributed power generation control method of the present invention, if additional power consumption is demanded by the system unit 200 by using the remaining capacity of at least one storage device constituting the reserve power unit 300, the remaining capacity may be increased in order. Stored surplus power can be applied to the grid unit 200, and since each storage device plays a role of a virtual power plant (VPP), it is necessary to upgrade a large-scale infrastructure facility required when building an actual power plant. There will be no. This makes it easy to respond to changing customer power demands and forecasting supply changes in real time.
이상과 같이 본 발명에서는 구체적인 구성 소자 등과 같은 특정 사항들과 한정된 실시예 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것 일 뿐, 본 발명은 상기의 일 실시예에 한정되는 것이 아니며, 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다.As described above, the present invention has been described by specific embodiments such as specific components and the like. However, this is merely provided to help a more general understanding of the present invention, and the present invention is limited to the above embodiment. However, various modifications and variations are possible to those skilled in the art to which the present invention pertains.
따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니 되며, 후술하는 특허 청구 범위뿐 아니라 이 특허 청구 범위와 균등하거나 등가적 변형이 있는 모든 것들은 본 발명 사상의 범주에 속한다고 할 것이다.Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things equivalent to or equivalent to the claims as well as the following claims will fall within the scope of the present invention. .
* 부호의 설명 ** Explanation of Codes *
100 : 전력 공급부100: power supply
200 : 계통부200: system part
300 : 예비 전력부 310 : 제어부300: backup power unit 310: control unit
400 : 그리드부400: grid portion

Claims (7)

  1. 전력을 생산하는 적어도 하나의 전력 공급부;At least one power supply for producing power;
    상기 전력 공급부에서 생산되는 전력을 소비하는 적어도 하나의 계통부;At least one grid portion consuming power produced by the power supply portion;
    상기 전력 공급부에서 과잉 생산되는 잉여 전력이 저장되며, 적어도 하나의 저장 장치로 이루어지는 적어도 하나의 예비 전력부; 및At least one spare power unit configured to store surplus power generated in excess from the power supply unit and include at least one storage device; And
    상기 전력 공급부, 계통부 및 예비 전력부를 연결하며, 상기 전력 공급부에서 생산되는 전력의 흐름을 제어하는 적어도 하나의 그리드부;At least one grid unit connecting the power supply unit, the grid unit, and the backup power unit to control the flow of power generated by the power supply unit;
    를 포함하여 구성되는 분산 발전 시스템.Distributed power generation system, including.
  2. 제 1항에 있어서,The method of claim 1,
    상기 예비 전력부는The backup power unit
    상기 계통부에서 소비하기 위해 상기 전력 공급부에서 인가된 전력이 부족하면, 상기 예비 전력부의 저장 장치에 저장된 잉여 전력이 상기 그리드부로 재전송되고 상기 잉여 전력은 상기 그리드부를 통해 계통부로 인가되는 것을 특징으로 하는 분산 발전 시스템.When the power applied from the power supply for consumption in the grid portion is insufficient, surplus power stored in the storage unit of the redundant power unit is retransmitted to the grid unit and the surplus power is applied to the grid unit through the grid unit Distributed power generation system.
  3. 제 1항에 있어서,The method of claim 1,
    상기 예비 전력부는The backup power unit
    제어부를 포함하되,Including a control unit,
    상기 제어부는 상기 저장 장치의 잔존 용량(SOC, State Of Charge)을 이용하여 상기 저장 장치의 사용 우선 순위를 결정하는 것을 특징으로 하는 분산 발전 시스템.The control unit uses the remaining capacity (SOC, State Of Charge) of the storage device distributed power generation system, characterized in that for determining the use priority of the storage device.
  4. 제 1항 내지 제 3항 중 선택되는 어느 한 항의 시스템에 의한 분산 발전의 제어 방법에 있어서,In the control method of distributed generation by the system of any one of Claims 1-3,
    A) 전력 공급부에서 생산된 전력이 소비되는 계통부에서 추가 소비 전력이 요구되는 전력 요구 단계;A) a power request step in which additional power consumption is required in a system unit in which power generated in the power supply unit is consumed;
    B) 상기 전력 공급부에서 생산된 잉여 전력이 저장되며, 적어도 하나 이상의 저장 장치로 이루어지는 예비 전력부에서 상기 전력 요구 단계에서 요구된 추가 소비 전력을 제공하기 위해 필요한 상기 저장 장치의 개수가 계산되는 저장 장치 계산 단계;B) a storage device in which surplus power produced by the power supply unit is stored, and the number of the storage devices required to provide the additional power consumption required in the power request step is calculated in a preliminary power unit including at least one or more storage devices. Calculating step;
    C) 상기 예비 전력부를 이루고 있는 상기 저장 장치의 각각의 잔존 용량(SOC, State Of Charge)이 계산되는 SOC 계산 단계;C) SOC calculation step of calculating the respective remaining capacity (SOC) of the storage device forming the backup power unit;
    D) 상기 SOC 계산 단계에서 계산된 상기 저장 장치의 잔존 용량이 소정 기준 수준 이상인지 판단되는 SOC 판단 단계;D) SOC determining step of determining whether the remaining capacity of the storage device calculated in the SOC calculation step is above a predetermined reference level;
    E) 상기 SOC 판단 단계에서 상기 저장 장치의 잔존 용량이 소정 기준 수준 이상이라고 판단되면, 상기 저장 장치 계산 단계에서 계산된 필요한 개수만큼의 상기 저장 장치를 상기 SOC 계산 단계에서 계산된 잔존 용량을 통해 사용 우선 순위를 결정하는 우선 순위 결정 단계; 및E) If it is determined in the SOC determination step that the remaining capacity of the storage device is greater than or equal to a predetermined reference level, the storage device calculated in the SOC calculation step uses the required number of storage devices calculated in the storage device calculation step. A prioritizing step of determining priorities; And
    F) 상기 우선 순위 결정 단계에서 결정된 상기 저장 장치의 사용 우선 순위에 따라 저장된 잉여 전력이 계통부에 인가되는 예비 전력 공급 단계;F) a preliminary power supply step of applying the surplus power stored according to the use priority of the storage device determined in the prioritization step to the grid;
    를 포함하여 이루어지는 분산 발전의 제어 방법.Distributed power control method comprising a.
  5. 제 4항에 있어서,The method of claim 4, wherein
    상기 분산 발전의 제어 방법은The control method of the distributed generation
    상기 예비 전력부에 저장 장치가 추가될 경우, 소정 시간 후부터 추가된 상기 저장 장치가 상기 SOC 계산 단계부터 수행되는 것을 특징으로 하는 분산 발전의 제어 방법.And when the storage device is added to the spare power unit, the storage device added after a predetermined time is performed from the SOC calculation step.
  6. 제 4항에 있어서,The method of claim 4, wherein
    상기 소정 기준은The predetermined criterion is
    상기 저장 장치의 잔존 용량이 10 ~ 90% 인 것을 특징으로 하는 분산 발전의 제어 방법.The control method of distributed generation, characterized in that the remaining capacity of the storage device is 10 to 90%.
  7. 제 5항에 있어서,The method of claim 5,
    상기 소정 시간은The predetermined time
    상기 저장 장치가 추가된 후부터 4초 ~ 60분 사이인 것을 특징으로 하는 분산 발전의 제어 방법.4 seconds to 60 minutes after the storage device is added.
PCT/KR2013/001100 2012-02-13 2013-02-13 Distributed power generating system and method for controlling same WO2013122372A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110165715A (en) * 2019-05-31 2019-08-23 电子科技大学 A method of by electric car energy storage type charging station access of virtual power plant

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101505465B1 (en) * 2013-11-07 2015-03-25 고려대학교 산학협력단 Charging or discharging control system and method of battery for Vehicle to Grid frequency regulation
TWI682272B (en) * 2018-06-20 2020-01-11 技嘉科技股份有限公司 Control method of redundant power supply device
KR102523783B1 (en) * 2020-03-03 2023-04-21 라온프렌즈 주식회사 State classification method of small scale power system based on variations of net load
KR102572939B1 (en) 2021-11-18 2023-08-31 목포대학교산학협력단 Indirect voltage control system and method using power sensitivity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007068288A (en) * 2005-08-30 2007-03-15 Fuji Electric Systems Co Ltd Power supply system
KR20110069398A (en) * 2009-12-17 2011-06-23 삼성에스디아이 주식회사 Energy storage system and controlling method thereof
KR20110074965A (en) * 2011-06-15 2011-07-05 (주)유케이비 Electric power storage apparatus for home use
KR20110079248A (en) * 2009-12-31 2011-07-07 김문식 Accumulation of excess solar energy system using a spring energy storage system
KR20120012532A (en) * 2010-08-02 2012-02-10 현대자동차주식회사 Two-way Power Supply Apparatus of Electric Vehicle for Smart Grid and Two-way Power Supply Method Using the Same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007068288A (en) * 2005-08-30 2007-03-15 Fuji Electric Systems Co Ltd Power supply system
KR20110069398A (en) * 2009-12-17 2011-06-23 삼성에스디아이 주식회사 Energy storage system and controlling method thereof
KR20110079248A (en) * 2009-12-31 2011-07-07 김문식 Accumulation of excess solar energy system using a spring energy storage system
KR20120012532A (en) * 2010-08-02 2012-02-10 현대자동차주식회사 Two-way Power Supply Apparatus of Electric Vehicle for Smart Grid and Two-way Power Supply Method Using the Same
KR20110074965A (en) * 2011-06-15 2011-07-05 (주)유케이비 Electric power storage apparatus for home use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110165715A (en) * 2019-05-31 2019-08-23 电子科技大学 A method of by electric car energy storage type charging station access of virtual power plant

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