[go: up one dir, main page]

WO2020040350A1 - Nouveau système de production d'énergie hybride à énergie renouvelable et son procédé de production d'énergie - Google Patents

Nouveau système de production d'énergie hybride à énergie renouvelable et son procédé de production d'énergie Download PDF

Info

Publication number
WO2020040350A1
WO2020040350A1 PCT/KR2018/012579 KR2018012579W WO2020040350A1 WO 2020040350 A1 WO2020040350 A1 WO 2020040350A1 KR 2018012579 W KR2018012579 W KR 2018012579W WO 2020040350 A1 WO2020040350 A1 WO 2020040350A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
fuel cell
renewable energy
bess
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2018/012579
Other languages
English (en)
Korean (ko)
Inventor
이상현
김민석
전희권
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
S-Fuelcell Co ltd
Original Assignee
S-Fuelcell Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by S-Fuelcell Co ltd filed Critical S-Fuelcell Co ltd
Publication of WO2020040350A1 publication Critical patent/WO2020040350A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858—Electric variables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/40—Combination of fuel cells with other energy production systems
    • H01M2250/402—Combination of fuel cell with other electric generators
    • H02J2101/30—
    • 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
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/10—Applications of fuel cells in buildings
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to a renewable energy hybrid power generation system and a renewable energy hybrid power generation method therefor.
  • the renewable energy generation device (RG) in the mountainous region is not only to promote the use of renewable energy, but also has the advantage of reducing the cost burden of the power generation equipment is increasing the interest.
  • the energy storage system storing the renewable energy generators and the generated electricity (energy) storage system (ESS) should be used interchangeably.
  • An object of the present invention is to provide a fuel cell system together with a renewable energy generation device (RG) and an energy storage device (ESS), while reducing the cost of a facility, and capable of immediately responding to instantaneous loads, and a power generation system for the same. To provide a method.
  • RG renewable energy generation device
  • ESS energy storage device
  • a power supply bus unit to which a renewable energy generation device RG, a fuel cell system FC, and a battery energy storage device BESS are individually connected as a power source; And a power converter (PCS) connected to the power bus unit and controlling power so that power supplied from the power bus unit is supplied to at least one load.
  • PCS power converter
  • the fuel cell system FC provides a renewable energy hybrid power generation system having at least two fuel cell modules that are operated individually.
  • the present invention provides a power generation method using the renewable energy hybrid power generation system.
  • the renewable energy hybrid power generation system includes a renewable energy generation device (RG), a fuel cell system (FC) and a battery energy storage device (BESS) is low and instantaneous equipment cost for increasing the capacity of the energy storage system Not only can it respond immediately to load changes, but also has the advantage of improving the slow generation speed according to the load tracking speed through unit modularization of the fuel cell system, and has the advantage of improving the life by lowering the discharge amount of the battery. .
  • RG renewable energy generation device
  • FC fuel cell system
  • BESS battery energy storage device
  • FIG. 1 is a graph showing a difference in power generation amount according to a fuel cell system FC provided in a renewable energy hybrid power generation system, (a) shows a case where the fuel cell system FC is a single fuel cell module, (b) shows a case where the fuel cell system FC is a plurality of unit cell fuel modules.
  • Figure 2 is a schematic diagram showing the configuration of a renewable energy hybrid power generation system according to the present invention.
  • Figure 3 is a schematic circuit diagram (a) of the individual power supply of the renewable energy hybrid power generation system according to the present invention and a graph (b) showing the voltage and power change with time of the individual power supply in the instantaneous load change.
  • FIG. 4 is a schematic view showing a configuration of a fuel cell module according to the present invention.
  • Figure 5 is a schematic diagram showing the control mode of the individual power supply during operation of the renewable energy hybrid power generation system according to the present invention.
  • FIG. 6 is a flowchart illustrating a control process of the fuel cell system FC according to the state of charge SOC of the battery energy storage device BESS.
  • the terms "comprises” or “having” are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.
  • the "load” is an individual consuming power supplied from a renewable energy generator (RG), a fuel cell system (FC), a battery energy storage device (BESS), etc., and may be, for example, a home, a factory, or the like.
  • the power supplied to the load may have a voltage / frequency condition commonly used in homes or factories.
  • the power supplied to the load may have a voltage of 380 / 220V and a frequency of 60 Hz.
  • rated voltage means a reference voltage to be supplied to maintain the normal operation of the load.
  • the present invention relates to a hybrid power generation system and a power generation method for the same.
  • a renewable energy generation device and an energy storage device for storing the generated electricity (energy) storage system (ESS) is being used in a mixed form.
  • the present invention provides a renewable energy hybrid power generation system and a power generation method therefor.
  • the renewable energy hybrid power generation system includes a renewable energy generation device (RG), a fuel cell system (FC) and a battery energy storage device (BESS) is low and instantaneous equipment cost for increasing the capacity of the energy storage system Not only can it respond immediately to load changes, but also has the advantage of improving the slow generation speed according to the load tracking speed through unit modularization of the fuel cell system, and has the advantage of improving the life by lowering the discharge amount of the battery. .
  • RG renewable energy generation device
  • FC fuel cell system
  • BESS battery energy storage device
  • a power supply bus unit to which a renewable energy generation device RG, a fuel cell system FC, and a battery energy storage device BESS are individually connected as a power source; And a power converter (PCS) connected to the power bus unit and controlling power so that power supplied from the power bus unit is supplied to at least one load.
  • PCS power converter
  • the fuel cell system FC provides a renewable energy hybrid power generation system having at least two fuel cell modules that are operated individually.
  • the renewable energy hybrid power generation system includes a power bus unit for supplying power and a power converter (PCS) connected to the power bus unit for converting power supplied from the power bus unit to be supplied to at least one load. do.
  • PCS power converter
  • the fuel cell system FC may include a fuel cell module in which a fuel cell is modularized.
  • the fuel cell unit provided in the fuel cell module has a lower tracking speed corresponding to the load than the battery of the battery energy storage device (BESS), and the output change due to the sudden load change may adversely affect the fuel cell stack life.
  • BESS battery energy storage device
  • the present invention includes a plurality of fuel cell modules in which a fuel cell is modularized in a fuel cell system FC so as to correspond to the total load, and thus, the load tracking speed of the fuel cell system FC is fueled as shown in FIG. 1.
  • the load response performance of the fuel cell system can be improved by proportionalizing the number of battery modules, and at the same time, the battery life is reduced by reducing the depth of discharge (DOD) of the battery of the battery energy storage device (BESS). It is effective to prolong.
  • the number of fuel cell modules provided in the fuel cell system may be 2 to 100, more specifically 5 to 90, 10 to 50, 50 to 100, 2 to 80, 2 to 60, It may be 2 to 40, 2 to 20, 2 to 10, 5 to 15, 5 to 10, or 2 to 5.
  • the fuel cell system FC according to the present invention includes 10 fuel cell modules that produce 2 kW of power instead of one fuel cell that produces 20 kW of power, producing the same power faster. can do.
  • the fuel cell system FC may have a configuration in which a plurality of fuel cell modules are connected in parallel in order to expand output power and to facilitate maintenance when a failure occurs.
  • FIG. 2 is an image showing a renewable energy hybrid power generation system according to the present invention.
  • each configuration of the renewable energy hybrid power generation system will be described in more detail with reference to FIG. 2.
  • the power bus unit has a configuration including a renewable energy generation device (RG), a fuel cell system, a battery energy storage system (BESS) independently operated.
  • the present invention is provided with a renewable energy generation device (RG), a fuel cell system (FC) and a battery energy storage device (BESS) as individual power supplies in the power bus unit, as well as to reduce the cost of installing the power generation equipment as well as night / Even when the renewable energy generation device RG is not operated due to a change in environmental conditions over time, such as a change in daytime, power can be supplied constantly.
  • the form of the power bus is not particularly limited, but may be a direct current bus (DC-BUS) type in terms of energy efficiency.
  • DC-BUS unlike alternating current bus (AC-BUS), has no problems with system stability, frequency synchronization, and reactive power, but it can also be applied to DC power systems such as solar, wind and fuel cells. It can be applied without secondary power conversion, which is efficient in terms of energy.
  • the power bus unit is configured to automatically operate according to the output reference voltage difference of each power source, that is, the potential difference in output between power sources, an autonomous control method that does not transmit or receive information between power sources can be used.
  • the power bus unit may be set such that the output reference voltage of each power source satisfies the condition of Equation 1.
  • the power supplies according to the present invention are set to an output reference voltage that satisfies Equation 1, and thus, the power supply is controlled by a droop control scheme for lowering the output voltage according to the active power / reactive power generated between the power bus portion and the load.
  • the driving sequence may have an operation sequence according to the output reference voltage set according to the voltage of the bus unit, and each power source may be automatically operated independently according to the operation sequence.
  • the droop control has an advantage of high reliability since it can automatically control each power source without any connection or separate control between each power source and the power converter (PCS):
  • V RG is the output reference voltage of the renewable energy generator (RG)
  • V FC is the output reference of the fuel cell system (FC)
  • V BESS is the output reference of the battery energy storage (BESS).
  • the output reference voltage for each power source has the highest output reference voltage V RG of the renewable energy generation device RG, as shown in Equation 1, and then the fuel cell system V FC and the battery energy storage device V BESS. ), The output reference voltage may be high.
  • the present invention controls the output reference voltage of each power supply in the order described above, when the output of the power bus unit is required due to the load generation, the configuration that is automatically fed and operated in the order of the power supply output voltage in accordance with the voltage of the power bus unit Has
  • the renewable energy hybrid system of the present invention when the output of the power bus unit is required due to a load generation, the power battery energy storage device BESS having a high load response speed is first operated, and the operated battery energy storage device BESS is operated. Before the state of charge SOC is lowered below the set value, as shown in FIG. 3, the renewable energy generator RG having the highest output reference voltage may be fed and operated.
  • the fuel cell system FC may be additionally fed and operated.
  • the battery energy storage is performed.
  • the device BESS can additionally be fed in and run.
  • the present invention is based on the output power of each power source set before the battery energy storage device (BESS) with a fast response speed corresponding to the occurrence of the load, but before the state of charge (SOC) of the battery energy storage device (BESS) is out of the set level. Having the operating sequence in the order of the highest voltage can minimize the use of the battery energy storage device (BESS) to maintain the state of charge (SOC) to the maximum, thereby improving the capacity and life problems of the battery energy storage device (BESS). .
  • each power supply is an output reference voltage of 100V to 1,000V, more specifically 100V to 9000V, 100V to 800V, 100V to 700V, 100V to 600V, 100V to 500V, 100V to 400V ⁇ 100V to 300V, 200V to 1,000V , 400V to 1,000V, 600V to 1,000V, 800V to 1,000V, 200V to 700V, 400V to 600V ⁇ 500V to 800V or 300V to 500V, the range can be set to the renewable energy hybrid generator It can be properly adjusted according to the design conditions.
  • the renewable energy generator RG does not include a separate control unit as a non-controlled power supply, and may be independently operated according to the voltage of the power bus unit based on the set output reference voltage. .
  • the renewable energy generator (RG) may be applied without particular limitation, unless it is a power generation system using fossil fuel or nuclear power.
  • the renewable energy generator (RG) is selected from the group consisting of a solar generator, a solar generator, a wind generator, a hydro generator, a piezoelectric energy block system of a staircase, a regenerative braking energy system of an electric motor, a geothermal generator and an tidal generator. It may include one or more kinds.
  • the renewable energy generation device RG may include a solar generator and a wind generator together, and in some cases, may include two or more solar generators.
  • the operation time of the renewable energy generation device (RG) can be controlled according to its type, and the environmental conditions in which the device is installed, such as weather, sunshine, temperature, air volume, and location conditions (hardness / latitude or altitude) of the installed point Etc.), of course, the amount of power generation may be affected by the change of time such as night / day.
  • the fuel cell system FC includes a plurality of fuel cell modules in which a fuel cell is modularized as described above, wherein each of the fuel cell modules is illustrated in FIG. 4.
  • RG renewable energy generator
  • PV photovoltaic cell
  • a hydrogen (H 2 ) storage unit for storing hydrogen (H 2 ) generated in connection with the hydrolysis unit;
  • a fuel cell unit including a stack connected to a hydrogen storage unit (H 2 ) to receive stored hydrogen (H 2 ) and to generate electric power and ultrapure water from the supplied hydrogen (H 2 );
  • It may include a water supply unit for supplying the ultra-pure water generated in connection with the fuel cell unit to the electrolytic cell of the water receiving section.
  • the fuel cell module according to the present invention electrolyzes the ultrapure water of the electrolytic cell with the power supplied from the renewable energy generation device RG separately installed in addition to the renewable energy generation device RG connected to the power bus unit to generate hydrogen (H 2 ).
  • the hydrogen (H 2 ) is generated and stored in the hydrogen (H 2 ) storage and power is supplied to the load, the hydrogen (H 2 ) is supplied to the fuel cell to supply power and ultrapure water from the stack of the fuel cell. You can switch.
  • the electrolyzed water in the electrolytic cell may be ultrapure water such as purified water (DI water) for generating only hydrogen (H 2 ) and oxygen (O 2 ) purely during electrolysis, and the ultrapure water has a conductivity of 10 us / cm or less, specifically 1-10 us / cm.
  • the reaction water generated in the battery stack of the fuel cell unit using hydrogen (H 2 ) supplied from the hydrogen (H 2 ) storage unit is generated by reacting pure hydrogen (H 2 ) with oxygen (O 2 ) in the air. Therefore, the conductivity may be ultra pure water of 10 us / cm or less.
  • the fuel cell module may include a water supply unit connected to the fuel cell unit and supplying ultrapure water generated in the stack of the fuel cell unit to the electrolytic cell of the hydrolysis unit.
  • a water supply unit connected to the fuel cell unit and supplying ultrapure water generated in the stack of the fuel cell unit to the electrolytic cell of the hydrolysis unit.
  • the electrolytic cell may maximize the hydrogen (H 2) production efficiency when using hydrogen (H 2) generated when, a high-temperature ultra-pure water.
  • the present invention may further include a configuration for collecting (heating) the waste heat generated in the stack when the power generation of the fuel cell module to increase the electrolytic cell temperature of the fuel cell unit containing ultrapure water to deliver to the electrolytic cell.
  • the fuel cell module may include a heat collecting unit configured to collect waste heat generated from the fuel cell unit; And it may further include a heat exchanger for transferring the heat source of the heat collecting portion to the electrolytic cell of the receiving portion by heat exchange.
  • the fuel cell module effectively collects waste heat generated from the fuel cell unit by providing a heat collecting unit and a heat exchanger to the electrolytic cell to efficiently heat the ultrapure water of the electrolytic cell without consuming extra energy (or power), and to produce hydrogen. Since the preparation time for heating the electrolyzer is not required, the hydrogen production efficiency is increased.
  • the temperature of the electrolytic cell may be 50 °C to 90 °C, specifically 50 °C to 80 °C, 60 °C to 90 °C, 60 °C to 80 °C, 55 °C to 75 °C, 50 °C to 65 °C, 65 °C To 90 ° C or 65 ° C to 75 ° C.
  • the fuel cell system FC may be independently controlled by an energy management system (EMS).
  • the control unit EMS is connected to the power bus unit as shown in FIG. 5 to receive the electric power P L required by the load when a load occurs, and at the same time, each amount of power of the renewable energy generation device RG. (P RG , P W and / or P PV ), the power amount P FC of the fuel cell system FC and the volume amount V H2 of stored hydrogen H 2 , and the power amount of the battery energy storage device BESS.
  • the P ESS and the state of charge SOC may be measured and / or received.
  • the controller EMS is a second power source to follow a state of charge (SOC) reference value of a battery energy storage device (BESS) that is set including a proportional integral controller (PI controller), a proportional integral differential controller (PID controller), and the like. Operation of the fuel cell system can be controlled. For example, as shown in FIG. 6, the controller EMS may determine the state of charge of the system received from the battery energy storage device BESS when the SOC reference value (85% or more) of the battery energy storage device BESS is set. If the SOC and / or battery capacity is lower than the set SOC threshold ( ⁇ 85%), the BESS will be proportional to follow the SOC threshold.
  • SOC state of charge
  • BESS battery energy storage device
  • the controller EMS may determine the state of charge of the system received from the battery energy storage device BESS when the SOC reference value (85% or more) of the battery energy storage device BESS is set. If the SOC and / or battery capacity is lower than the set SOC threshold ( ⁇ 85%), the BESS will be proportional
  • the PI controller can be used to turn on the fuel cell system FC, where the operating amount of the fuel cell system FC is determined by the state of charge (SOC) of the system received from the battery energy storage device (BESS).
  • SOC state of charge
  • BESS battery energy storage device
  • the controller EMS may perform overcharge, overdischarge, overcurrent, cell balancing, SOC, and aging state (SOH) from information received from a third power source (for example, power amount, voltage, current, and cell temperature).
  • a protection circuit for performing each function according to a control signal of the microcomputer.
  • the battery energy storage system stores the power supplied from the renewable energy generation device (RG) including a photovoltaic power generation system, a wind power generation system, the voltage of the power bus unit battery
  • the renewable energy generation device including a photovoltaic power generation system, a wind power generation system, the voltage of the power bus unit battery
  • the type of the battery energy storage device is not particularly limited, and in detail, a high-capacity nickel-cadmium secondary battery, a lithium ion secondary battery, and lithium for storing electric power supplied from the renewable energy storage device (RG).
  • the battery energy storage device (BESS) provides the stored power without a separate power production operation when the power is supplied to the load, the most response speed to sudden load changes such as overload or peak load among the power connected to the power bus bus Has fast features.
  • the response speed is high when the load is changed by using the battery energy storage device (BESS), but the capacity and life of the system are shortened rapidly due to frequent discharge of the battery energy storage device (BESS).
  • the present invention is to maximize the state of charge (SOC) of the battery in consideration of the costs incurred by the installation and / or replacement of the battery energy storage device (BESS), the battery energy when the instantaneous load occurs Even if the storage device BESS is activated first, the SOC of the battery energy storage device BESS may be at a certain level, for example, 80% or more, specifically 85% or more, 86% or more, 88% or 90%.
  • the reference value is set to maintain the abnormality, and the output energy of the renewable energy storage device RG and the fuel storage system FC having a low output reference voltage before the SOC of the battery energy storage device BESS is out of the set reference value.
  • the operation has a configuration that operates sequentially.
  • the battery energy storage device BESS when the battery energy storage device BESS supplies power according to an instantaneous load change, the battery energy storage device BESS is preferentially supplied with a charge state of the battery energy storage device BESS. May be operated so that power is supplied sequentially from the renewable energy generation device RG and the fuel cell system FC before it falls below 80%.
  • the present invention can increase the capacity and life of the battery by maintaining the state of charge (SOC) of the battery energy storage device (BESS) at the same level.
  • the battery energy storage device BESS may further include a battery management system (BMS) for battery system management.
  • BMS battery management system
  • the battery controller BMS primarily controls and maintains the voltage of the power bus unit, that is, the reference voltage, and maintains the state of charge SOC of the battery energy storage device BESS at a predetermined level. Control the charging state SOC of the battery energy storage device BESS, that is, the charging power amount and the discharge power amount or the battery capacity through the power charging of the battery energy storage device BESS when the new renewable hybrid power generation device operates. It can serve as a regular transmission.
  • the power conversion system may be positioned between the power bus unit and the load to convert power so that the power supplied from the power bus unit is supplied to one or more loads.
  • the power converter may be connected to the power bus unit to convert the power supplied from the power bus unit from DC to AC to supply one or more loads.
  • the power converter PCS may be set such that an output reference voltage satisfies Equation 2:
  • V RG is the output reference voltage of the renewable energy generator (RG)
  • V FC is the output reference voltage of the fuel cell system (FC)
  • V PCS is the output reference of the power converter (PCS).
  • the output reference voltage of the power converter (PCS) is greater than the output reference voltage of the fuel cell system (FC) so as to satisfy the condition of Equation 2, and is less than or equal to the output reference voltage of the renewable energy generator (RG).
  • the charging state SOC of the battery can be easily controlled by increasing the charging efficiency of the battery energy storage device BESS.
  • the renewable energy hybrid power generation system is a supercapacitor as a separate power source in addition to the renewable energy generation device RG, the fuel cell system FC and the battery energy storage system BESS.
  • (super capacitor, SC) may further include.
  • the supercapacitor SC can respond quickly to changes in the load of several seconds to several minutes. Therefore, when the supercapacitor SC is included as an individual power source of the power bus unit, but the output reference voltage of the supercapacitor SC is set equal to or higher than that of the fuel cell system FC, the load is earlier than the battery energy storage device BESS.
  • the battery life can be extended by reducing the battery discharge amount (DOD) of the battery energy storage device (BESS), and the stability of the renewable energy generation system is advantageous.
  • DOD battery discharge amount
  • the present invention provides a power generation method using the renewable renewable power generation system according to the present invention.
  • Renewable hybrid power generation method using a renewable energy generator (RG), a fuel cell system (FC) and a battery energy storage device (BESS) is a low equipment cost and instantaneous load for increasing the capacity of the energy storage system Not only can it immediately respond to changes, it is also excellent in the effect of improving the slow generation speed according to the load tracking speed through the modular unit of the fuel cell system, and has the advantage of improving the life by lowering the discharge amount of the battery.
  • RG renewable energy generator
  • FC fuel cell system
  • BESS battery energy storage device
  • the renewable energy hybrid power generation system includes a renewable energy generation device (RG), a fuel cell system (FC) and a battery energy storage device (BESS) is low and instantaneous equipment cost for increasing the capacity of the energy storage system Not only can it respond immediately to load changes, but also has the advantage of improving the slow generation speed according to the load tracking speed through unit modularization of the fuel cell system, and has the advantage of improving the life by lowering the discharge amount of the battery. .
  • RG renewable energy generation device
  • FC fuel cell system
  • BESS battery energy storage device

Landscapes

  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Fuel Cell (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne un nouveau système de production d'énergie hybride à énergie renouvelable et son procédé de production d'énergie. Le système de production d'énergie comprend un générateur d'énergie à énergie renouvelable (RG), un système de pile à combustible (FC), et un système de stockage d'énergie de batterie (BESS). Par conséquent, le système de production d'énergie peut réduire le coût d'installation requis pour augmenter la capacité d'un système de stockage d'énergie, peut immédiatement répondre à un changement de charge instantané, et a d'excellents effets : d'amélioration d'une vitesse de production d'énergie lente en fonction d'une vitesse de suivi de charge par l'intermédiaire de la modularisation d'unité du système de pile à combustible ; et de réduction d'une quantité déchargée d'une batterie pour améliorer sa durée de vie.
PCT/KR2018/012579 2018-08-22 2018-10-23 Nouveau système de production d'énergie hybride à énergie renouvelable et son procédé de production d'énergie Ceased WO2020040350A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180097755A KR102306918B1 (ko) 2018-08-22 2018-08-22 신재생 에너지 하이브리드 발전 시스템 및 이를 위한 발전 방법
KR10-2018-0097755 2018-08-22

Publications (1)

Publication Number Publication Date
WO2020040350A1 true WO2020040350A1 (fr) 2020-02-27

Family

ID=69592728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/012579 Ceased WO2020040350A1 (fr) 2018-08-22 2018-10-23 Nouveau système de production d'énergie hybride à énergie renouvelable et son procédé de production d'énergie

Country Status (2)

Country Link
KR (1) KR102306918B1 (fr)
WO (1) WO2020040350A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112701709A (zh) * 2020-12-29 2021-04-23 苏州中车氢能动力技术有限公司 基站的电源控制方法、装置以及电子设备
CN113846340A (zh) * 2021-09-22 2021-12-28 宝武清洁能源有限公司 一种氢能管理系统
CN114172192A (zh) * 2021-11-18 2022-03-11 华能新能源股份有限公司 一种互补能源系统的结构优化方法及装置
CN115102153A (zh) * 2022-07-11 2022-09-23 西安交通大学 一种变电站站用电光氢储微电网及其控制方法
EP4379876A3 (fr) * 2022-11-30 2024-12-18 HPS Home Power Solutions AG Système d'énergie

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021263231A1 (fr) 2020-06-26 2021-12-30 Ohmium International, Inc. Surveillance d'impédance d'un système d'électrolyse modulaire
KR20220047433A (ko) 2020-10-08 2022-04-18 신대섭 태양광-수소 기반의 전력 발생 장치 및 이를 이용한 전력 발생 방법
KR102573283B1 (ko) 2021-08-02 2023-09-06 한국에너지기술연구원 염분차발전용 전력변환 시스템
KR102611120B1 (ko) 2021-11-17 2023-12-08 한국에너지기술연구원 Red 스택 조립체 및 이를 이용한 red 염분차발전 시스템
US12470062B2 (en) 2022-04-18 2025-11-11 Ohmium International, Inc. Frequency droop to coordinate hydrogen production
EP4602711A2 (fr) 2022-10-14 2025-08-20 Ohmium International, Inc. Systèmes et circuits pour connecter des composants d'une installation d'hydrogène à une source d'alimentation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003257443A (ja) * 2002-02-28 2003-09-12 Ebara Corp 自然エネルギー発電装置と燃料電池を有する自己完結型発電システム
KR20120071288A (ko) * 2010-12-22 2012-07-02 지에스퓨얼셀 주식회사 연료전지 장치
KR20130073244A (ko) * 2011-12-23 2013-07-03 한국항공우주연구원 하이브리드 전력원용 액티브 전력제어 시스템 및 그 방법
KR20150025772A (ko) * 2013-08-30 2015-03-11 대우조선해양 주식회사 부유식 구조물의 배전시스템 및 배전방법
KR20150118597A (ko) * 2014-04-14 2015-10-23 엘에스산전 주식회사 점검 기능을 가지는 에너지 저장 장치
KR20160081216A (ko) * 2014-12-31 2016-07-08 한국전력공사 독립형 마이크로그리드 시스템
KR20160122873A (ko) * 2015-04-14 2016-10-25 현대제철 주식회사 분산형 연료전지 컨트롤러를 갖는 통합 관리 시스템 및 그 제어 방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906993B1 (ko) 2007-11-09 2009-07-08 한국에너지기술연구원 연료전지 하이브리드 발전시스템의 전력제어시스템 및전력제어방법
KR101098521B1 (ko) * 2010-08-27 2011-12-26 현대산업개발 주식회사 하이브리드 전력공급 시스템
KR20170026695A (ko) 2015-08-26 2017-03-09 데스틴파워 주식회사 하이브리드 에너지저장 시스템

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003257443A (ja) * 2002-02-28 2003-09-12 Ebara Corp 自然エネルギー発電装置と燃料電池を有する自己完結型発電システム
KR20120071288A (ko) * 2010-12-22 2012-07-02 지에스퓨얼셀 주식회사 연료전지 장치
KR20130073244A (ko) * 2011-12-23 2013-07-03 한국항공우주연구원 하이브리드 전력원용 액티브 전력제어 시스템 및 그 방법
KR20150025772A (ko) * 2013-08-30 2015-03-11 대우조선해양 주식회사 부유식 구조물의 배전시스템 및 배전방법
KR20150118597A (ko) * 2014-04-14 2015-10-23 엘에스산전 주식회사 점검 기능을 가지는 에너지 저장 장치
KR20160081216A (ko) * 2014-12-31 2016-07-08 한국전력공사 독립형 마이크로그리드 시스템
KR20160122873A (ko) * 2015-04-14 2016-10-25 현대제철 주식회사 분산형 연료전지 컨트롤러를 갖는 통합 관리 시스템 및 그 제어 방법

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112701709A (zh) * 2020-12-29 2021-04-23 苏州中车氢能动力技术有限公司 基站的电源控制方法、装置以及电子设备
CN113846340A (zh) * 2021-09-22 2021-12-28 宝武清洁能源有限公司 一种氢能管理系统
CN113846340B (zh) * 2021-09-22 2024-05-28 宝武清洁能源有限公司 一种氢能管理系统
CN114172192A (zh) * 2021-11-18 2022-03-11 华能新能源股份有限公司 一种互补能源系统的结构优化方法及装置
CN115102153A (zh) * 2022-07-11 2022-09-23 西安交通大学 一种变电站站用电光氢储微电网及其控制方法
CN115102153B (zh) * 2022-07-11 2024-05-24 西安交通大学 一种变电站站用电光氢储微电网及其控制方法
EP4379876A3 (fr) * 2022-11-30 2024-12-18 HPS Home Power Solutions AG Système d'énergie

Also Published As

Publication number Publication date
KR20200022082A (ko) 2020-03-03
KR102306918B1 (ko) 2021-09-30

Similar Documents

Publication Publication Date Title
WO2020040350A1 (fr) Nouveau système de production d'énergie hybride à énergie renouvelable et son procédé de production d'énergie
CN102104257B (zh) 公寓楼的储能系统、集成电力管理系统及系统控制方法
KR102223896B1 (ko) 신재생 에너지 하이브리드 발전 시스템 및 이를 위한 발전 방법
WO2012033254A1 (fr) Système de stockage d'énergie et procédé de commande associé
CN115102153A (zh) 一种变电站站用电光氢储微电网及其控制方法
WO2017142218A1 (fr) Système de stockage d'énergie et procédé de système fonctionnel
CN115441517B (zh) 新型数据中心供配电系统及其控制方法
CN211089487U (zh) 一种5g基站高压直流远程供电系统
CN209056972U (zh) 镍氢电池ups控制系统
US20110297204A1 (en) Method and device for optimizing the use of solar electrical power
CN112491083B (zh) 一种基于燃料电池的微网结构和运行控制方法
WO2019151656A1 (fr) Procédé et dispositif de distribution de sorties d'ess
CN114597938A (zh) 一种铝空气电池混合供电系统及其控制方法
CN112104306B (zh) 一种混合型柔性合环装置及光储共享接口控制方法
CN212543374U (zh) 110kV智慧能源站站用直流电源系统
CN120320464A (zh) 一种无人值守光伏储能系统及其用于延长系统待机时长的方法
CN220754388U (zh) 一种高集成电池储能系统
WO2013100584A1 (fr) Procédé et appareil pour commander la compensation de puissance de système producteur d'énergie électrique éolienne
KR20140013553A (ko) 하이브리드 발전 시스템
CN111371165A (zh) 适用于液流电池的光储充一体机及系统
CN117713319A (zh) 电池均衡设备、储能系统及用电设备
CN210224976U (zh) 基于可再生能源的微电网系统
CN113708395B (zh) 一种智慧楼宇多功能储能系统的运行方法
WO2023282438A1 (fr) Système de gestion d'alimentation
CN113890175A (zh) 一种变电站用新型智能不间断电源

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18931251

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18931251

Country of ref document: EP

Kind code of ref document: A1