WO2021002539A1 - 머신러닝 기반의 mppt 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템 - Google Patents
머신러닝 기반의 mppt 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템 Download PDFInfo
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- WO2021002539A1 WO2021002539A1 PCT/KR2019/014058 KR2019014058W WO2021002539A1 WO 2021002539 A1 WO2021002539 A1 WO 2021002539A1 KR 2019014058 W KR2019014058 W KR 2019014058W WO 2021002539 A1 WO2021002539 A1 WO 2021002539A1
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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
- H02J3/381—Dispersed generators
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
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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
- 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
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
Definitions
- the present invention relates to a photovoltaic module serial-to-parallel conversion system for optimizing an MPPT operating voltage based on machine learning, and more particularly, a maximum output point (MPP) in an inverter connected to a plurality of solar panels or a plurality of solar panel groups, respectively.
- MPP maximum output point
- the inverter operates normally even when the solar panel produces low power, such as in cloudy weather, sunrise or sunset, as the outputs of a plurality of solar panels or a plurality of solar panel groups are collected.
- It relates to a solar module serial-to-parallel conversion system for optimizing the operating voltage of MPPT based on machine learning that can increase the daily power production time.
- an inverter converts direct current (DC) power produced from a solar panel into alternating current (AC) power.
- the inverter starts operating when the DC input power exceeds a certain level (Win-start) required for normal operation (start), and stops for protection of the device above the maximum input power (Win-max). Operation is stopped at input (Win-min) below the minimum power.
- Win-start a certain level required for normal operation
- Win-max a certain level required for protection of the device above the maximum input power
- Operation is stopped at input (Win-min) below the minimum power.
- the values of (Win-min) and (Win-start) may be the same or different depending on the inverter.
- the efficiency of the inverter is expressed as a ratio of the input power to the output power, which is not always a constant value over the entire operating range, and changes according to the output as shown in FIG. 1.
- the efficiency of the inverter varies depending on the structure and control method, but it is generally known to be the highest in the range of 30% to 80%.
- the inverter of the solar power generation system is MIC (Module-Integrated Converter), string, multi-string, central, multi-central, depending on the combination type of solar panel and array. ) Can be classified as an inverter.
- MIC is a form of attaching an inverter for each panel, so it is easy to install because it does not require separate DC line wiring, and maximum energy harvest is possible even when the sunlight conditions between panels are different due to shadows or differences in installation conditions.
- BIPV Building Integrated Photovoltaics
- the string method uses DC/AC inverters per panel series group, and it is possible to control MPPT (maximum power point tracking) for each string, and it can relatively effectively harvest energy for partial shade, but large capacity power plants
- MPPT maximum power point tracking
- the number of inverters is too large, increasing maintenance costs, and since the inverter is not centrally controlled, it is somewhat unsuitable in terms of system protection such as preventing single operation, so it is suitable for a medium-capacity solar power generation system.
- the multi-string method uses an inverter or DC/DC converter per panel series group, which combines the advantages of the string method and the central method, but has a disadvantage that the efficiency of the system is somewhat low because it uses a double power converter.
- the central method has the disadvantage that the energy harvest is somewhat low due to the combination of all panels in series and parallel, but it is mainly used as a large-capacity industrial inverter method because it has the advantage of excellent converter efficiency and low cost compared to output capacity. Since such a central method uses a single inverter, it is advantageous for grid protection and has the advantage of low maintenance cost, but has a disadvantage that the entire system cannot operate when an inverter fails. Recently, a multi-central method, which is a method of implementing a single large-capacity inverter system by connecting a large-capacity central inverter in parallel, has been developed as a method to compensate for such shortcomings.
- the multi-central inverter is a structure in which central inverters are connected in parallel, and is composed of multiple inverters instead of one inverter when configuring a power generation system.
- conditions of low solar energy such as sunrise, sunset, and cloudy weather
- only a specific inverter is driven by collecting the power produced by the solar panels, and when there is a lot of solar energy, the inverter operates in optimal conditions by operating all multiple inverters.
- the efficiency of the solar power plant can be improved.
- the multi-central method has a high system construction cost because it has to control several inverters and solar panels, and it is unsuitable for a small solar power generation system because it requires complex control functions including communication between inverters or between inverters and a central controller. There is this.
- the solar module of a grid-connected large-capacity solar system consists of a solar panel, DCLink stage, DC/AC inverter, LC filter, and transformer. Since the voltage produced by the solar array of a large-capacity solar power generation system is greater than the grid power voltage, a DC/DC boost converter to secure a stable grid voltage is unnecessary, and MPPT (maximum power point) to obtain the maximum power from the solar module. tracking) is controlled.
- the DC/AC inverter supplies the maximum power generated to the grid according to the phase of the grid voltage.
- the present invention has been devised to solve the above problems, and a plurality of solar panels even when an input power equal to or less than the maximum output point (MPP) is achieved in an inverter connected to a plurality of solar panels or a plurality of solar panel groups, respectively. Or, by controlling the switching unit so that the outputs of a plurality of solar panel groups are collected together, the inverter operates normally even when the solar panel produces low power such as cloudy weather, sunrise, or sunset, thereby increasing the daily power production time. Its purpose is to provide a solar module serial-to-parallel conversion system for optimizing the running-based MPPT operating voltage.
- the present invention has the following features to achieve the above object.
- the present invention includes a plurality of solar panels exposed to sunlight to generate electric power; A plurality of inverters each connected to the plurality of solar panels and converting DC power output from the solar panel into AC power; A plurality of output sensing units respectively connected to the plurality of solar panels to sense an output power value of the solar panel; A switching unit connected between the plurality of solar panels and the plurality of inverters to transmit the output of each solar panel to any one solar panel according to an output power value of each solar panel; And a control unit for receiving sensing data from the output sensing unit and controlling the switching connection of the switching unit.
- the plurality of solar panels includes a plurality of solar panel groups to which a plurality of solar panels are connected in series, and an inverter is connected to an end side of each solar panel group.
- control unit monitors the voltage and current output from each solar panel group and controls each inverter connected thereto to operate at a maximum power point.
- control unit receives the output power value of each photovoltaic panel group from the output sensing unit, and when it is lower than a preset output power value, the control unit outputs one of the photovoltaic panel groups to the other.
- the switching unit is controlled to be transmitted to the solar panel group of
- the control unit receives the output power value of each solar panel group from the output sensing unit and, when it is lower than a preset output power value, outputs the remaining solar panel group outputs at any two locations.
- the switching part is controlled so that it is transmitted to one solar panel group.
- the first and second solar panels sensed in real time, they generate change trend distribution data and change trend pattern data, and the generated change trend distribution over a certain period of time. It includes a machine learning-based pattern analysis unit in which control of the switching unit is performed through data and change trend pattern data.
- the inverter can be operated normally even when the solar panel produces low power, such as during cloudy weather, sunrise, or sunset, thereby simply extending the operating time of the inverter and reducing the operating time within the maximum efficiency section of the inverter. It has the effect of maximizing and improving power generation efficiency.
- 1 is a graph illustrating a change in efficiency of a general solar inverter.
- FIG. 2 is a graph illustrating changes in output voltage, output current characteristics, and maximum output point of a typical solar panel.
- FIG. 3 is a diagram showing a schematic configuration of a photovoltaic module serial-to-parallel conversion system according to an embodiment of the present invention.
- FIG. 4 is a diagram illustrating an operation process of a switching unit when the inverter input power is less than or equal to a maximum output point according to an embodiment of the present invention.
- FIG. 5 is a diagram showing a schematic configuration of a photovoltaic module serial-to-parallel conversion system according to another embodiment of the present invention.
- FIG. 6 is a diagram illustrating an operation process of a switching unit when the inverter input power is less than or equal to the maximum output point according to another embodiment of the present invention.
- FIG. 7 is a diagram illustrating an operation process of a switching unit when the inverter input power is less than the maximum output point in three solar panel groups according to another embodiment of the present invention.
- FIG. 8 is a flowchart illustrating a process of controlling a switching unit of a controller in three solar panel groups according to another embodiment of the present invention.
- FIGS. 9 and 11 are diagrams illustrating a state in which the switching unit is controlled in a parallel mode, a two-place serial mode, and a three-place serial mode in N solar panel groups according to another embodiment of the present invention.
- FIG. 2 is a graph illustrating changes in output voltage, output current characteristics, and maximum output point of a typical solar panel.
- Inverter for photovoltaic power generation has MPPT (maximum power point tracking) function to obtain maximum power and outputs the voltage-current output condition of the solar panel according to the fluctuation of the solar energy density. Adjust it to a value that can yield.
- FIG. 3 is a diagram showing a schematic configuration of a photovoltaic module serial-to-parallel conversion system according to an embodiment of the present invention
- FIG. 4 is an operation of a switching unit when the inverter input power is less than the maximum output point according to an embodiment of the present invention. It is a diagram showing the process.
- a photovoltaic module serial-to-parallel conversion system 100 includes a plurality of photovoltaic panels 10a that generate power by being exposed to sunlight, and the plurality of photovoltaic modules.
- a plurality of inverters 30 each connected to the panel 10a to convert DC power output from the corresponding solar panel 10a into AC power, and each connected to the plurality of solar panels 10a to The output of each solar panel 10a is connected between the plurality of output sensing units 20 for sensing the output power value of the panel 10a and the plurality of solar panels 10a and the plurality of inverters 30
- a switching unit 40 for transmitting the output of each solar panel 10a to any one solar panel 10a according to the power value, and the switching unit receiving sensing data from the output sensing unit 20 It consists of a control unit 50 that performs the switching connection control of 40.
- the solar panel 10a is a panel that generates DC power through sunlight, and the solar panel 10a is connected to the rear end of the inverter 30 to supply the produced DC power.
- an output sensing unit 20 for sensing the power value supplied to the inverter 30, that is, the output power value of the solar panel 10a is provided with each solar panel ( 10a) It is installed separately.
- the PV module serial-to-parallel conversion system 100 is configured with a maximum power point tracking (MMPT) control that operates when the maximum power point of the inverter 30 is higher. Accordingly, when the output power value of the solar panel 10a supplied to the inverter 30 is lower than the maximum output point, the driving of the inverter 30 is stopped.
- MMPT maximum power point tracking
- the driving of the inverter 30 will be stopped and the power generation through the solar panel 10a will be stopped.
- a switching unit 40 is provided to transfer the output power of the solar panel 10a to the output power of another solar panel 10a so that both output powers can be summed.
- the switching unit 40 is connected to each solar panel 10a and the inverter 30 corresponding thereto, or connected to the rear end of another solar panel 10a to correspond to and connect to the other solar panel 10a. It is connected so that the output power is transmitted to the inverter 30.
- FIG. 3 shows a state in which the output power value of each solar panel 10a is formed above the maximum output point of the inverter 30 so that the solar panel 10a and the inverter 30 are connected to each other
- FIG. 4 is The output power value of the photovoltaic panel 10a is formed below the maximum output point, so that the output power of the lower photovoltaic panel 10a is transmitted to the rear end of the upper photovoltaic panel 10a.
- It is configured to deliver all the power produced by the two solar panels 10a to the connected inverter 30.
- the inverter 30 will stop driving when the level is less than the maximum output point of the corresponding inverter 30 that has received it.
- the inverter 30 converts the direct current type power received from the solar panel 10a into alternating current type power and transmits it to the outside.
- control unit 50 receives the output power value of the solar panel 10a from the output sensing unit 20 and, when it is lower than a preset value, controls the switching unit 40 to control each solar panel. It controls to collect the power produced in (10a) and supply it to any one of the inverters 30.
- FIG. 5 is a view showing a schematic configuration of a photovoltaic module serial-to-parallel conversion system according to another embodiment of the present invention
- FIG. 6 is an operation of a switching unit when the inverter input power is less than the maximum output point according to another embodiment of the present invention. It is a diagram showing the process.
- the photovoltaic module serial-to-parallel conversion system 100 two photovoltaic panel groups 10 to which a plurality of photovoltaic panels 10a are connected in series are formed, and each of the photovoltaic panels
- the inverter 30 is connected to the end side of the group 10, respectively, the output sensing unit 20 is installed at the front end of each inverter 30 as in the above-described embodiment, the solar panel group 10 and the inverter A switching unit 40 is formed between the 30.
- the output detection unit 20 senses the output power value of the entire solar panel group 10, and the controller 50 controls the switching unit 40 based on the maximum output point of the inverter 30 connected thereto. Control.
- each solar panel group 10 and each inverter 30 are normally connected and normally driven
- FIG. 6 As shown in, when the output power value of each solar panel group 10 is less than or equal to a preset set value, the output of one solar panel group 10 is transmitted to the other solar panel group through the control of the switching unit 40. By transferring to (10), only one inverter 30 is normally driven.
- FIG. 7 is a diagram illustrating an operation process of a switching unit when the inverter input power is less than the maximum output point in three solar panel groups according to another embodiment of the present invention
- FIG. 8 is a diagram showing an operation process of a switching unit according to another embodiment of the present invention. It is a flow chart showing the process of controlling the switching unit of the controller in three solar panel groups.
- the photovoltaic module serial-to-parallel conversion system 100 is formed of three photovoltaic panel groups 10 so that the output power value of each photovoltaic panel group 10 is a preset set value.
- each solar panel group 10 and each inverter 30 are normally connected and normally driven, and as shown in FIG. 7, when the output power value of each solar panel group 10 is less than a preset set value, the switching unit (40) Through control, the output of the solar panel group 10 at any two locations is transmitted to the other solar panel group 10 so that only one inverter 30 is normally driven.
- the switching unit 40 so that the output power values of the three solar panel groups 10 are all summed up as shown in FIG. 7. Control may be performed, and as shown in FIG. 8, according to the output power value of the output sensing unit 20, the solar panel group 10 of one place -> two places -> three places may be connected to the inverter 30.
- each photovoltaic panel group 10 is connected to the corresponding inverter 30 (S10), and it is determined whether the output power value of the detected output sensing unit 20 is higher than the set value (S20), and the set value If it is determined that it is abnormal, it is determined whether the output power value is more than the set value according to the set time (S21), and if it is determined that it is less than the set value (S22), two of the three solar panel groups 10 Switching control of the switching unit 40 is performed by the control unit 50 so that the solar panel group 10 is first connected in series so that the output power is summed and transmitted to any one inverter 30 (S30).
- the output power value of the output detection unit 20 is higher than the set value (S40), and if it is determined that the value is higher than the set value, the current switching control is maintained as it is and the output power value is higher than the set value according to the set time. If it is determined whether or not it is (S41), and if it is determined that it is less than the set value (S42), the three solar panel groups 10 are connected in series, the output power is summed, and the switch is transferred to any one inverter 30 The switching control of the unit 40 is performed by the control unit 50 (S50).
- the switching control when the switching control is performed so that the three solar panel groups 10 are connected in series, it is determined whether the output power value through the output sensing unit 20 is higher than or equal to the set value (S60). With the control maintained as it is, it is determined whether the output power value is higher than the set value according to the set time (S61), and if it is determined that it is less than the set value (S62), the three solar panel groups 10
- the switching control of the switching unit 40 is performed by the control unit 50 so that all of them are connected in parallel, that is, each solar panel group 10 is connected in correspondence with each inverter 30 (S10).
- one inverter 30 is used even at a lower power output value. Since it can be driven, there is an advantage that the power generation efficiency can be further improved.
- FIGS. 9 and 11 are diagrams illustrating a state in which the switching unit is controlled in a parallel mode, a two-place serial mode, and a three-place serial mode in N solar panel groups according to another embodiment of the present invention.
- the solar panel group 10 and the inverter 30 may be connected to each other in a one-to-one correspondence as shown in FIG. 9, and 2 as shown in FIG.
- the solar panel group 10 at the locations may be connected in series to be connected to one inverter 30, and as shown in FIG. 11, the photovoltaic panel group 10 at three locations may be connected in series to one inverter 30. Can be connected.
- the control unit 50 first determines whether the output power value of each output sensing unit 20 is greater than or equal to the set value, that is, the maximum output point of the inverter 30. When it is determined whether the output power value of each output sensing unit 20 is greater than or equal to the set value, all solar panel groups 10 are connected in parallel mode with the inverter 30 in a one-to-one correspondence as shown in FIG. Make it possible.
- control unit 50 first bundles the N solar panel groups 10 in two places in sequence, and then the two solar panel groups ( 10) is connected in series to control the switching unit 40 so that power produced by one inverter 30 is supplied.
- the output power value of the output detection unit 20 is judged again to determine whether it is less than or equal to the set value, and if it is above the set value, two solar panel groups 10 are connected in series as shown in FIG.
- the inverter 30 is driven in a serial mode.
- the three solar panel groups 10 are connected in series to supply the generated power to one inverter 30.
- the unit 40 performs control and checks the output power value of the output sensing unit 20 installed in the front end of the inverter 30 receiving power again.
- the inverter 30 may be driven in the three-site serial mode in which the three solar panel groups 10 are connected in series as shown in FIG. 11. Accordingly, 4 solar panel groups 10 may be connected in series to determine the output power value through the output sensing unit 20.
- the switching unit 40 may be converted into a full parallel mode and controlled to stop driving all the inverters 30.
- the controller 50 receives output power data (including voltage or current data) of the solar panel 10a or solar panel group 10 sensed in real time, and
- the change trend pattern data may be generated, and the control of the switching unit 40 may be performed through the generated change trend distribution data and the change trend pattern data for a predetermined period of time.
- control unit 50 transmits the output power data received in real time from the output detection unit 20 and the control information of the switching unit 40 to a separate machine learning analysis server, and the machine learning analysis server changes the output power data.
- the machine learning analysis server changes the output power data.
- the algorithm for determining trend data through learning in the machine learning analysis server can be transferred to the control unit 50 according to the present invention and applied to the control of the switching unit 40 of the control unit 50.
- the output power data is machine-learned on the change trend distribution data and the change trend pattern data.Through this machine learning, through this machine learning, through the change trend distribution data of the output power data, MTTP when estimating the pattern data When the voltage rises or falls, a pattern of similar output power data will be formed for similar environmental variables, so a specific machine learning algorithm can be selected in consideration of this point.
- CNN convolutional neural network
- SVM supported vector machine
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Abstract
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Claims (5)
- 태양광에 노출되어 전력을 생산하는 복수의 태양광패널(10a)과;상기 복수의 태양광패널(10a)에 각각 연결되어 해당 태양광패널(10a)로부터 출력되는 직류 전력을 교류 전력으로 변환하는 복수의 인버터(30)와;상기 복수의 태양광패널(10a)과 각각 연결되어 해당 태양광패널(10a)의 출력 전력값을 감지하는 복수의 출력감지부(20)와;상기 복수의 태양광패널(10a)과 복수의 인버터(30) 사이에 연결되어 각 태양광패널(10a)의 출력 전력값에 따라 각 태양광패널(10a)의 출력을 어느 하나의 태양광패널(10a)로 전달되도록 하는 스위칭부(40)와;상기 출력감지부(20)의 센싱데이터를 전달받아 상기 스위칭부(40)의 스위칭 연결 제어를 수행하는 제어부(50);를 포함하여 이루어지는 것을 특징으로 하는 머신러닝 기반의 MPPT 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템.
- 제1항에 있어서,상기 복수의 태양광패널(10a)은복수의 태양광패널(10a)이 직렬 연결되는 태양광패널군(10)이 복수개 형성되며, 상기 각 태양광패널군(10)의 단부측에 인버터(30)가 각각 연결되는 것을 특징으로 하는 머신러닝 기반의 MPPT 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템.
- 제2항에 있어서,상기 제어부(50)는상기 각 태양광패널군(10)로부터 출력되는 전압 및 전류를 모니터링하여 이들과 연결되는 각 인버터(30)가 최대 출력점(maximum power point)에서 동작하도록 제어하는 것을 특징으로 하는 머신러닝 기반의 MPPT 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템.
- 제2항에 있어서,상기 태양광패널군(10)이 2개소인 경우, 상기 제어부(50)는각 태양광패널군(10)의 출력 전력값을 출력감지부(20)로부터 전달받아 기설정된 출력 전력값보다 낮은 경우 어느 하나의 태양광패널군(10) 출력을 다른 하나의 태양광패널군(10)에 전달되도록 스위칭부(40)를 제어하는 것을 특징으로 하는 머신러닝 기반의 MPPT 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템.
- 제2항에 있어서,상기 태양광패널군(10)이 3개소인 경우, 상기 제어부(50)는각 태양광패널군(10)의 출력 전력값을 출력감지부(20)로부터 전달받아 기설정된 출력 전력값보다 낮은 경우 어느 2개소의 태양광패널군(10) 출력을 나머지 1개소의 태양광패널군(10)에 전달되도록 스위칭부(40)를 제어하는 것을 특징으로 하는 머신러닝 기반의 MPPT 동작전압 최적화를 위한 태양광 모듈 직병렬 변환시스템.
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KR20230100965A (ko) | 2021-12-29 | 2023-07-06 | (주)엠피에스코리아 | 태양광 패널의 최대 전력점 추종 제어를 지원하는 계통연계 인버터 |
KR20240014316A (ko) | 2022-07-25 | 2024-02-01 | (주)한빛이노텍 | 지락 차단에 강인한 태양광 발전 시스템 |
KR102626309B1 (ko) * | 2023-09-14 | 2024-01-16 | 순천대학교 산학협력단 | 태양광 모듈의 mppt 제어를 위해 일사량, 부하, 및 컨버터 토폴로지를 고려한 알고리즘을 이용한 태양광 직병렬연결 시스템 |
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