WO2021230607A1 - 전력 공급 시스템의 출력 분배 방법 - Google Patents
전력 공급 시스템의 출력 분배 방법 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 229920003258 poly(methylsilmethylene) Polymers 0.000 claims abstract description 34
- 238000002296 dynamic light scattering Methods 0.000 claims abstract description 10
- 238000013061 process characterization study Methods 0.000 claims abstract description 10
- 238000010248 power generation Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
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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
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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
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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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
- 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
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Definitions
- the present invention relates to an output distribution method of a power supply system, and more particularly, a power supply system having a plurality of Power Conditioning Systems (PCS) or a plurality of Power Electronics Building Blocks (PEBBs; hereinafter referred to as “peps”) ( It relates to a method of distributing power with optimal efficiency in the Power Supplying System). That is, the present invention relates to a method for controlling the operation of a plurality of PCS or a plurality of peps in a power supply system according to an operating environment.
- PCS Power Conditioning Systems
- PEBBs Power Electronics Building Blocks
- the smart grid environment forms a hybrid network in which various devices are mixed and wired and wireless are combined.
- the smart grid communication network construction method uses broadband wireless communication (Wimax) as the main line network and high-speed power line communication (PLC) as the subscriber network. management, electric vehicle, solar power facility monitoring, etc.) are increasing efficiency.
- Wimax broadband wireless communication
- PLC high-speed power line communication
- Korean Patent Laid-Open Publication No. 10-2012-0097551 uses a method of turning on/off a specific device in order to save power in a smart grid system.
- the existing smart grid system does not present an appropriate method of distributing energy in order to efficiently use the supplied energy.
- PV system a photovoltaic system
- a solar cell panel is provided on an upper surface of a flat or curved plate to convert solar energy into electricity.
- PV system operates in a high-efficiency region at the time of maximum output, but has a disadvantage in that it is operated in a low-efficiency region in a low power generation state, resulting in loss of power generation.
- ESS Electronicgy Storage System
- ESS can play a key role in linking to the smart grid after converting renewable energy sources that are being actively developed recently into high-quality electricity.
- it is a necessary device when linking wind power generation and solar power generation systems with large output fluctuations to the grid.
- the principle of energy storage is to receive electrical energy from the power system, store it as ionization, kinetic energy, physical compression, and chemical energy, and convert it into electrical energy when necessary and supply it to the power system.
- Medium-to-large energy storage devices can be classified into various types.
- Lithium ion batteries are typical secondary batteries.
- An object of the present invention is to provide an output distribution method of a power supply system capable of improving the efficiency of the entire system by operating the power supply system according to plant characteristics and operating environment of a site where the power supply system is located.
- Another object of the present invention is to provide an output distribution method of a power supply system capable of increasing the lifespan of a PCS through operation of the power supply system tailored to the plant characteristics and operating environment of a site where the power supply system is located.
- An output distribution method of a power supply system is an output distribution method of a power supply system including a plurality of PCS, comprising: a required output power comparison step of comparing the required output power of the power supply system with a reference value; a power allocating step of allocating the required output power equally to all PCSs and operating in a first mode when the required output power exceeds the reference value; a power allocating step of a maximum power operation PCS of allocating at least one maximum power operation PCS to be operated with a maximum operation ratio power based on a maximum operation ratio and a minimum operation ratio when the required output power does not exceed the reference value; When the remaining power that is not allocated in the power allocation step of the maximum power operation PCS exceeds the minimum operation ratio power, the remaining power operation PCS to operate the remaining power is allocated and the second operation PCS together with at least one maximum power operation PCS power allocation step of the residual power operation PCS operating in mode; and when the remaining power not allocated in the power allocation step of the maximum power operation PCS does
- the reference value may be the maximum power * the maximum operation ratio of the power supply system.
- the maximum operating rate power may be a maximum available power per PCS * a maximum operating rate.
- the minimum operation ratio power may be the maximum power available per PCS * the minimum operation ratio.
- the maximum operation ratio and the minimum operation ratio may be set based on a predicted power generation value of the power supply system, a power market trend, and a reference set value.
- the first mode is used when the required output power is equal to or greater than the upper limit reference value
- any one of the first mode and the second mode is used when the required output power is equal to or less than the upper limit reference value and greater than or equal to the lower limit reference value
- any one of the second mode and the third mode may be used.
- the upper limit reference value and the lower limit reference value may be set based on the predicted power generation value of the power supply system, the electric power market trend, and the reference set value.
- the maximum operation ratio and the minimum operation ratio may be determined according to the operation mode.
- the output distribution method of the power supply system is an output distribution method of a power supply system including a PCS made of a plurality of PEBB, and comparing the required output power of the PCS with a reference value.
- the power allocation step of the maximum power operation PEP allocating at least one maximum power operation PEBB to be operated with the maximum operation ratio power based on the maximum operation ratio and the minimum operation ratio ;
- the residual power that is not allocated in the power allocation step of the maximum power operation PEBB exceeds the minimum operation ratio power, at least one maximum power operation is performed by allocating the remaining power operation PEBB to operate the remaining power a power allocation step of the remaining power operation PEP operating in the second mode together with the PEBB; and when the remaining power not allocated in the power allocation step of the maximum power operation Pep does not exceed the minimum operation ratio power, the request is made to the maximum power operation Pep allocated in the power allocation step of the maximum power operation Pep (PEBB) It may include; a power reallocation step of the maximum power operation pep operating in the third mode by dividing the output
- the reference value may be the maximum power of the PCS * the maximum operation ratio.
- the maximum driving ratio power may be the maximum power available per PEBB * the maximum driving ratio.
- the minimum driving ratio power may be the maximum power available per PEBB * the lowest driving ratio.
- the maximum operation ratio and the minimum operation ratio may be set based on a predicted power generation value of the PCS, a power market trend, and a reference set value.
- the first mode is used when the required output power is equal to or greater than the upper limit reference value
- any one of the first mode and the second mode is used when the required output power is equal to or less than the upper limit reference value and greater than or equal to the lower limit reference value
- any one of the second mode and the third mode may be used.
- the upper limit reference value and the lower limit reference value may be set based on the predicted power generation value of the PCS, the electric power market trend, and the reference set value.
- the maximum operation ratio and the minimum operation ratio may be determined according to the operation mode.
- the output distribution method of the power supply system according to the present invention has an advantage in that the efficiency of the entire system can be improved by operating the power supply system according to the plant characteristics and operating environment of the site where the power supply system is located.
- the output distribution method of the power supply system according to the present invention has the advantage of increasing the lifespan of the PCS through operation of the power supply system tailored to the plant characteristics and operating environment of the site where the power supply system is located.
- FIG. 1 is a flowchart illustrating an output distribution method of a power supply system according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating a detailed operation of the power supply system of FIG. 1 when it operates in the first mode.
- FIG. 3 is a diagram illustrating a detailed operation of the power supply system of FIG. 1 when it operates in the second mode.
- FIG. 4 is a diagram illustrating a detailed operation of the power supply system of FIG. 1 when it operates in a third mode.
- FIG. 5 is a graph illustrating a case in which the power supply system of FIG. 1 operates in a combination of a first mode, a second mode, and a third mode.
- FIG. 6 is a block diagram illustrating an output distribution apparatus of a power supply system according to an embodiment of the present invention.
- FIG. 7 is a flowchart illustrating an output distribution method of a power supply system according to another embodiment of the present invention.
- FIG. 1 is a flowchart illustrating an output distribution method of a power supply system according to an embodiment of the present invention
- FIGS. 2 to 5 are detailed views and graphs for describing FIG. 1 in detail
- Figure 6 is a block diagram showing an output distribution device of the power supply system according to an embodiment of the present invention.
- the output distribution method of the power supply system compares the required output power of the power supply system with a reference value in the control unit 120 ( S110 ), the required output power is If the reference value is exceeded, the operation in the first mode by allocating the required output power equally to all PCS (S120).
- the maximum operation ratio 131 and the minimum operation ratio 132 Allocating at least one maximum power operation PCS to be operated with the maximum operation ratio power based on (S140)
- the remaining power operation PCS to operate the remaining power is allocated to at least one maximum power operation PCS and The operation in the second mode together (S150), and the power allocation step of the maximum power operation PCS by comparing the residual power not allocated in the power allocation step (S130) of the maximum power operation PCS (S140) and the minimum operation ratio power (S140)
- the required output power is equally divided and reallocated to the maximum power operation PCS allocated in the power allocation step (S130) of the maximum operation PCS to the third mode is operated as a step (S160).
- the reference value may be set as the maximum power * the maximum operation ratio of the power supply system.
- the maximum operation ratio power can be set as the maximum available power per PCS * the maximum operation ratio.
- the minimum operation ratio power may be set as the maximum power available per PCS * the minimum operation ratio.
- the maximum operation ratio 131 and the minimum operation ratio 132 may be set based on a predicted power generation value of the power supply system, a power market trend, and a reference set value.
- the power supply system of the present invention uses the maximum operating ratio 131 and the lowest operating ratio 132 set based on the power supply system's power generation forecast value, power market trend, and reference set value as above for a plurality of PCSs. By distributing the output in the manner of the mode, the second mode, and the third mode, it is possible to make the energy conversion efficiency of the power supply system achieve 98% or more.
- the maximum operation ratio 131 and the minimum operation ratio 132 are set to a relatively low value, and through this, it is possible to increase the conversion efficiency through mode operation and increase the lifespan of the PCS and PEBB even in the case of an output power requirement that the overall power conversion efficiency of the system is somewhat lower.
- the maximum operation ratio 131 and the minimum operation ratio 132 are set relatively high, and through this, the power conversion efficiency is high.
- FIG. 2 is a diagram illustrating a detailed operation of the power supply system of FIG. 1 when it operates in the first mode.
- the first PCS 111 when the total PCS exceeds the maximum operation ratio, the first PCS 111 , the second PCS 112 , the third PCS 113 , and the N-th PCS 114 ) to allocate power to increase system efficiency.
- the first mode has an advantage in that overall system efficiency can be increased by operating all PCSs in a region or time zone where the required output power is high.
- FIG. 3 is a diagram illustrating a detailed operation of the power supply system of FIG. 1 when it operates in the second mode.
- the first PCS 111 , the second PCS 112 , and the third PCS 113 operate at the maximum operation ratio 131 , and the N-th PCS 114 . ) by allocating the remaining power to operate between the minimum operation ratio 132 and the maximum operation ratio 131 .
- FIG. 4 is a diagram illustrating a detailed operation of the power supply system of FIG. 1 when it operates in a third mode.
- the first PCS 111 operating at the maximum operating ratio 131 is not used, but not using the Nth PCS 114 that should operate at the lowest operating ratio 132 or lower.
- the second PCS 112 , and the third PCS 113 are further divided and allocated the remaining power.
- the third mode does not use the Nth PCS 114 with low conversion efficiency that operates at the lowest operating ratio 132 or less, overall system efficiency can be increased, and the number of times of use of the Nth PCS 114 can be increased. By reducing it, the lifespan of the Nth PCS 114 may be extended.
- This third mode has the advantage of increasing overall system efficiency by removing the operation of the PCS with low efficiency in a region or time zone where the required output power is low.
- FIG. 5 is a graph illustrating a case in which the power supply system of FIG. 1 operates in a combination of a first mode, a second mode, and a third mode.
- control unit 120 uses the first mode when the requested output is above the upper limit reference value, and uses any one of the first mode and the second mode when it is below the upper limit reference value and above the lower limit reference value, Any one of the second mode and the third mode may be used when it is less than or equal to the lower limit reference value.
- FIG. 5(a) shows that the amount of sunlight is very high, so when the output power 161 of the power supply system is equal to or greater than the upper limit reference value, FIG. less than and equal to or greater than the lower limit reference value
- FIG. 5 ( c ) is a graph illustrating a case in which the amount of sunlight is low and the output power 163 of the power supply system is less than or equal to the lower limit reference value.
- the power supply system of the present invention sets the first maximum operation ratio 141 and the first minimum operation ratio 151 to be high when the power supply system output power 161 is equal to or greater than the upper limit reference value as shown in FIG. to increase power efficiency by operating all PCS, and when the power supply system output power 162 is between the upper limit reference value and the lower limit reference value as shown in FIG. 5(b), the second maximum operation ratio 142 and the second minimum operation ratio ( 152) is set somewhat lower to increase power efficiency by operating in the first mode or the second mode to preferentially use a PCS having a rather high power conversion efficiency, and as shown in FIG.
- the power supply system output power 163 is the lower limit When it is less than the reference value, the third maximum operation ratio 143 and the third minimum operation ratio 153 are set low to operate in the second mode and the third mode to determine whether the PCS with poor conversion efficiency participates in the power supply system. Increase efficiency and increase lifespan.
- the upper limit reference value and the lower limit reference value are reference values capable of determining the operation mode of the power supply system according to the required output of the power supply system designed based on the predicted generation value of the power supply system, the power market trend, and the reference set value.
- the power that all PCS can participate in in the area with high conversion efficiency is set as the upper limit reference value. If the price is high, the power that all PCS can participate in even if the conversion efficiency is low in the power supply system is set as the lower limit reference value.
- the maximum operation ratio and the minimum operation ratio may be determined according to the operation mode.
- the first mode may be a case where the predicted value of power generation of the power supply system is high and the price of the power market is low, in which case the first maximum operation ratio 141 and the first minimum operation ratio 151 are set high. This ensures that only PCS with high conversion efficiency participate in power conversion.
- the second mode may be a case where the predicted power generation value of the power supply system is high and the power market price is high, or the power generation predicted value of the power supply system is low and the power market price is low, in this case, the second maximum operation ratio ( 142) and the second lowest driving ratio 152 are set somewhat lower.
- the third mode may be a case in which the predicted value of the power generation of the power supply system is low and the price of the power market is high. Even if this is low, it can participate in power conversion.
- FIG. 6 is a block diagram illustrating an output distribution apparatus of a power supply system according to an embodiment of the present invention.
- the output distribution device of the power supply system converts DC input power to AC and operates the first PCS to N PCS for supplying to the system, and the required output power supplied to the system at maximum operation. Based on the ratio 131 and the minimum operation ratio 132, the maximum operation ratio power and the remaining power are divided into the first PCS to the Nth PCS, and the maximum power operation PCS and the residual power operation PCS are respectively selected and allocated to the control unit 120 . is done
- the maximum operation ratio power may be calculated as the maximum available power per PCS * the maximum operation ratio.
- the lowest operating ratio power may be characterized as the maximum available power per PCS * the lowest operating ratio.
- the maximum operation ratio 131 and the minimum operation ratio 132 may be set based on a predicted power generation value of the power supply system, a power market trend, and a reference set value.
- the control unit 120 compares the required output power for the DC input of the power supply system with a reference value, and when the required output power exceeds the reference value, the total PCS The required output power is equally allocated to the PCS, and if the required output power does not exceed the reference value, the PCS to be operated with the maximum operating ratio power and the PCS to be operated with the remaining power are selected and allocated.
- the controller 120 allocates the residual power not allocated to the maximum power operation PCS to the residual power operation PCS, and when the residual power does not exceed the minimum operation ratio power The remaining power is equally allocated to the maximum power operation PCS.
- the output distribution device of the power supply system is a plurality of using the maximum operation ratio 131 and the minimum operation ratio 132 set based on the power generation forecast value, the electricity market trend, and the reference set value.
- FIG. 7 is a flowchart illustrating an output distribution method of a power supply system according to another embodiment of the present invention.
- the power supply system includes one PCS, and the PCS includes a plurality of Power Electronics Building Blocks (PEBBs; hereinafter referred to as “peps”).
- PBBs Power Electronics Building Blocks
- the output distribution method of the power supply system compares the required output power of the PCS 210 with a reference value ( S210 ), when the required output power exceeds the reference value
- the step of operating in the first mode by allocating the output power equally to all PEBBs (S220), when the required output power does not exceed the reference value, the maximum operation ratio 231 and the minimum operation ratio 232 Allocating at least one maximum power operation PEBB to be operated with the operating ratio power (S230), comparing the remaining power not allocated in the power allocation step (S230) of the maximum power operation PEBB with the lowest operating ratio power ( S240) to allocate the remaining power operation PEBB to operate the remaining power when the remaining power not allocated in the power allocation step (S230) of the maximum power operation Pep exceeds the minimum operation ratio power, and at least one of the maximum power Operating in the second mode together with the driving PEBB (S250), and comparing the remaining power not allocated in the power allocation step (S230) of the maximum power driving PEBB and the lowest
- the reference value may be set as the maximum power * maximum operation ratio of the PCS 210 .
- the maximum operating rate power can be set as the maximum available power per PEBB * the maximum operating rate.
- the lowest driving ratio power may be set as the maximum power available per PEBB * the lowest driving ratio.
- the maximum operation ratio 131 and the minimum operation ratio 132 may be set based on a predicted generation value of the PCS 210 , a power market trend, and a reference set value.
- the output distribution method of the power supply system is the maximum operation ratio 231 and the minimum operation ratio 232 set based on the predicted generation value of the PCS 210, the electricity market trend, and the reference set value.
- the maximum operation ratio 131 and the minimum operation ratio 132 when the required output power is low due to the plant characteristics of the site where the PCS 210 is located, the maximum operation ratio 131 and the minimum The operation ratio 132 is set to a relatively low value, and through this, the overall PEBB can be operated even if the power conversion efficiency is somewhat reduced.
- the maximum operation ratio 131 and the minimum operation ratio 132 are set relatively slightly higher.
- the output distribution method and apparatus of the power supply system according to the present invention can improve the efficiency of the entire system by operating the power supply system according to the plant characteristics and operating environment of the site where the power supply system is located, thereby improving the efficiency of the PCS. can increase lifespan.
- the present invention relates to a method for distributing an output of a power supply system, and can be used in the field of power.
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Abstract
Description
Claims (16)
- 다수의 PCS를 포함하는 전력 공급 시스템의 출력 분배 방법으로서,전력 공급 시스템의 요구 출력 전력을 기준값과 비교하는 요구 출력 전력 비교단계;상기 요구 출력 전력이 상기 기준값을 초과할 경우, 상기 요구 출력 전력을 전체 PCS에 동일하게 할당하여 제 1 모드로 운영하는 단위 운전 PCS의 전력 할당단계;상기 요구 출력 전력이 상기 기준값을 초과하지 않을 경우, 최대 운전 비율 및 최저 운전 비율을 토대로 최대 운전 비율 전력으로 운영할 적어도 어느 하나의 최대전력 운전 PCS를 할당하는 최대전력 운전 PCS의 전력 할당단계;상기 최대전력 운전 PCS의 전력 할당단계에서 할당되지 않은 잔여 전력이 최저 운전 비율 전력을 초과할 경우, 상기 잔여 전력을 운영할 잔여전력 운전 PCS를 할당하여 적어도 어느 하나의 최대전력 운전 PCS과 함께 제 2 모드로 운영하는 잔여전력 운전 PCS의 전력 할당단계; 및상기 최대전력 운전 PCS의 전력 할당단계에서 할당되지 않은 잔여 전력이 상기 최저 운전 비율 전력을 초과하지 않을 경우, 상기 최대전력 운전 PCS의 전력 할당단계에서 할당된 상기 최대전력 운전 PCS에 상기 요구 출력 전력을 동일하게 나누어 재할당하여 제 3 모드로 운영하는 최대전력 운전 PCS의 전력 재할당단계;를 포함하는 전력 공급 시스템의 출력 분배 방법.
- 제 1항에 있어서,상기 기준값은, 상기 전력 공급 시스템의 최대 전력 * 최대 운전 비율인 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 1항에 있어서,상기 최대 운전 비율 전력은, PCS 당 가용 최대 전력* 최대 운전 비율인 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 1항에 있어서,상기 최저 운전 비율 전력은, PCS 당 가용 최대 전력 * 최저 운전 비율인 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 1항에 있어서,상기 최대 운전 비율 및 상기 최저 운전 비율은, 상기 전력 공급 시스템의 발전 예측값, 전력시장 동향, 및 기준 설정값을 토대로 설정되는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 1항에 있어서,상기 요구 출력 전력이 상한 기준값 이상일 때 상기 제 1 모드를 사용하고, 상기 요구 출력 전력이 상기 상한 기준값 이하이고 하한 기준값 이상일 때 상기 제 1 모드와 상기 제 2 모드 중 어느 하나를 사용하며, 상기 요구 출력 전력이 상기 하한 기준값 이하일 때 상기 제 2 모드와 상기 제 3 모드 중 어느 하나를 사용하는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 6항에 있어서,상기 상한 기준값 및 상기 하한 기준값은 상기 전력 공급 시스템의 발전 예측값, 전력시장 동향, 및 기준 설정값을 토대로 설정되는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 6항에 있어서,상기 상한 기준값 및 상기 하한 기준값에 따라 운용 모드가 결정되면, 상기 운용 모드에 따라 상기 최대 운전 비율과 상기 최소 운전 비율이 정해지는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 다수의 펩(PEBB)으로 이루어진 PCS를 포함하는 전력 공급 시스템의 출력 분배 방법으로서,PCS의 요구 출력 전력을 기준값과 비교하는 요구 출력 전력 비교단계;상기 요구 출력 전력이 상기 기준값을 초과할 경우 상기 요구 출력 전력을 전체 펩(PEBB)에 동일하게 할당하여 제 1 모드로 운영하는 단위 운전 펩의 전력 할당단계;상기 요구 출력 전력이 상기 기준값을 초과하지 않을 경우 최대 운전 비율 및 최저 운전 비율을 토대로 최대 운전 비율 전력으로 운영할 적어도 어느 하나의 최대전력 운전 펩(PEBB)을 할당하는 최대전력 운전 펩의 전력 할당단계;상기 최대전력 운전 펩(PEBB)의 전력 할당단계에서 할당되지 않은 잔여 전력이 최저 운전 비율 전력을 초과할 경우 상기 잔여 전력을 운영할 잔여전력 운전 펩(PEBB)을 할당하여 적어도 어느 하나의 최대전력 운전 펩(PEBB)과 함께 제 2 모드로 운영하는 잔여전력 운전 펩의 전력 할당단계; 및상기 최대전력 운전 펩의 전력 할당단계에서 할당되지 않은 잔여 전력이 상기 최저 운전 비율 전력을 초과하지 않을 경우 상기 최대전력 운전 펩(PEBB)의 전력 할당단계에서 할당된 상기 최대전력 운전 펩에 상기 요구 출력 전력을 동일하게 나누어 재할당하여 제 3 모드로 운영하는 최대전력 운전 펩의 전력 재할당단계;를 포함하는 전력 공급 시스템의 출력 분배 방법.
- 제 9항에 있어서,상기 기준값은, 상기 PCS의 최대 전력 * 최대 운전 비율인 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 9항에 있어서,상기 최대 운전 비율 전력은, 펩(PEBB) 당 가용 최대 전력* 최대 운전 비율인 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 9항에 있어서,상기 최저 운전 비율 전력은, 펩(PEBB) 당 가용 최대 전력 * 최저 운전 비율인 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 9항에 있어서,상기 최대 운전 비율 및 상기 최저 운전 비율은, 상기 PCS의 발전 예측값, 전력시장 동향, 및 기준 설정값을 토대로 설정되는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 9항에 있어서,상기 요구 출력 전력이 상한 기준값 이상일 때 상기 제 1 모드를 사용하고, 상기 요구 출력 전력이 상기 상한 기준값 이하이고 하한 기준값 이상일 때 상기 제 1 모드와 상기 제 2 모드 중 어느 하나를 사용하며, 상기 요구 출력 전력이 상기 하한 기준값 이하일 때 상기 제 2 모드와 상기 제 3 모드 중 어느 하나를 사용하는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 14항에 있어서,상기 상한 기준값 및 상기 하한 기준값은 상기 PCS의 발전 예측값, 전력시장 동향, 및 기준 설정값을 토대로 설정되는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
- 제 14항에 있어서,상기 상한 기준값 및 상기 하한 기준값에 따라 운용 모드가 결정되면, 상기 운용 모드에 따라 상기 최대 운전 비율과 상기 최소 운전 비율이 정해지는 것을 특징으로 하는 전력 공급 시스템의 출력 분배 방법.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120097551A (ko) | 2011-02-25 | 2012-09-05 | 컨스핀 주식회사 | 인터넷과 연동하는 스마트그리드 제어장치 및 방법 |
KR20170057648A (ko) * | 2015-11-17 | 2017-05-25 | 주식회사 엘지화학 | 에너지 저장 시스템의 사양 설계 장치 및 방법 |
KR20180066766A (ko) * | 2016-12-09 | 2018-06-19 | 주식회사 효성 | Ess 최적 효율 운영방법 |
KR20190107794A (ko) * | 2018-03-13 | 2019-09-23 | 두산중공업 주식회사 | 하이브리드 배터리에 연결된 전력 변환 시스템을 제어하기 위한 방법 및 시스템 |
KR20190143341A (ko) * | 2018-06-20 | 2019-12-30 | 기가 바이트 테크놀러지 컴퍼니 리미티드 | 예비 전력 공급 장치의 제어 방법 |
JP2020072637A (ja) * | 2018-10-26 | 2020-05-07 | 株式会社九電工 | 再生可能エネルギーを用いた電力供給設備 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101274632B1 (ko) * | 2011-06-08 | 2013-06-13 | 한밭대학교 산학협력단 | 태양광 발전 시스템에서 인버터의 전력 할당 방법 |
KR101822824B1 (ko) * | 2012-09-21 | 2018-01-29 | 한국전력공사 | 전력저장시스템의 충방전 분배장치 및 그 방법 |
JP6157880B2 (ja) * | 2013-03-04 | 2017-07-05 | 株式会社東芝 | 複数電池を有する二次電池システム及び充放電電力等の配分方法 |
US20150145336A1 (en) * | 2013-11-27 | 2015-05-28 | Solantro Semiconductor Corp. | Modular power conversion system and method |
KR101792395B1 (ko) * | 2016-02-15 | 2017-11-01 | 두산중공업 주식회사 | 에너지 저장 시스템 및 시스템 운용 방법 |
JP6711516B2 (ja) * | 2016-03-29 | 2020-06-17 | 日本電気株式会社 | 出力制御装置、パワーコンディショナー、出力制御方法及びプログラム |
JP6266187B1 (ja) * | 2016-09-16 | 2018-01-24 | 三菱電機株式会社 | 電力変換装置 |
KR20190093034A (ko) * | 2018-01-31 | 2019-08-08 | 효성중공업 주식회사 | Ess 출력 분배 방법 및 장치 |
-
2020
- 2020-05-14 KR KR1020200057752A patent/KR102450205B1/ko active IP Right Grant
-
2021
- 2021-05-11 WO PCT/KR2021/005852 patent/WO2021230607A1/ko unknown
- 2021-05-11 US US17/623,143 patent/US20220239102A1/en active Pending
- 2021-05-11 AU AU2021273430A patent/AU2021273430B2/en active Active
- 2021-05-11 EP EP21803821.4A patent/EP4152545A4/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20120097551A (ko) | 2011-02-25 | 2012-09-05 | 컨스핀 주식회사 | 인터넷과 연동하는 스마트그리드 제어장치 및 방법 |
KR20170057648A (ko) * | 2015-11-17 | 2017-05-25 | 주식회사 엘지화학 | 에너지 저장 시스템의 사양 설계 장치 및 방법 |
KR20180066766A (ko) * | 2016-12-09 | 2018-06-19 | 주식회사 효성 | Ess 최적 효율 운영방법 |
KR20190107794A (ko) * | 2018-03-13 | 2019-09-23 | 두산중공업 주식회사 | 하이브리드 배터리에 연결된 전력 변환 시스템을 제어하기 위한 방법 및 시스템 |
KR20190143341A (ko) * | 2018-06-20 | 2019-12-30 | 기가 바이트 테크놀러지 컴퍼니 리미티드 | 예비 전력 공급 장치의 제어 방법 |
JP2020072637A (ja) * | 2018-10-26 | 2020-05-07 | 株式会社九電工 | 再生可能エネルギーを用いた電力供給設備 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4152545A4 |
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