WO2021118062A1 - Appareil et procédé de surveillance de module de cellule solaire - Google Patents

Appareil et procédé de surveillance de module de cellule solaire Download PDF

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Publication number
WO2021118062A1
WO2021118062A1 PCT/KR2020/015176 KR2020015176W WO2021118062A1 WO 2021118062 A1 WO2021118062 A1 WO 2021118062A1 KR 2020015176 W KR2020015176 W KR 2020015176W WO 2021118062 A1 WO2021118062 A1 WO 2021118062A1
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WIPO (PCT)
Prior art keywords
solar cell
monitoring data
cell module
unit
infrared
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PCT/KR2020/015176
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English (en)
Korean (ko)
Inventor
김응석
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김응석
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Application filed by 김응석 filed Critical 김응석
Publication of WO2021118062A1 publication Critical patent/WO2021118062A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • 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

Definitions

  • the present invention relates to a solar cell module monitoring apparatus and method, and more particularly, to an apparatus and method capable of monitoring the state of a module (unit panel), which is the minimum unit of a solar panel constituting a solar power generation system. .
  • Such a photovoltaic system includes a photovoltaic panel to convert sunlight into electrical energy, and the photovoltaic panel is composed of a plurality of solar cell modules.
  • a solar cell module is a minimum unit of a solar panel, and a plurality of solar cells may be configured in a series/parallel combination.
  • a conventional fault detection system installs a channel monitor that monitors multiple solar cell modules into one channel on the connection panel, and when the difference in output voltage for each channel is significantly large, the corresponding channel It can be determined that this is a malfunction.
  • the present invention has been proposed to solve the above-mentioned conventional problems, and provides a solar cell module monitoring apparatus and method capable of determining whether each of the solar cell modules, which is a minimum unit of a solar panel of a photovoltaic system, has a failure that has its purpose.
  • a solar cell module monitoring device includes: a channel monitor for monitoring the amount of power generation of a channel including a plurality of solar cell modules; a control unit for determining which channel is faulty based on the amount of power generation for each channel from the channel monitor; a monitoring data transmission unit connected to the plurality of solar cell modules, respectively, for monitoring the solar cell module of the faulty channel by a voltage measurement method under the control of the control unit and outputting monitoring data through infrared communication; and a monitoring data receiving unit for determining and displaying whether a corresponding solar cell module has failed based on the monitoring data.
  • the solar cell module monitoring device for monitoring the amount of power generation of a channel comprising a plurality of solar cell modules; a control unit for determining which channel is faulty based on the amount of power generation for each channel from the channel monitor; a monitoring data transmission unit connected to the plurality of solar cell modules, respectively, for monitoring the solar cell module of the faulty channel by a current measurement method under the control of the control unit, and outputting monitoring data through infrared communication; and a monitoring data receiving unit for determining and displaying whether a corresponding solar cell module has failed based on the monitoring data.
  • the solar cell module monitoring method the channel monitor, monitoring the amount of power generation of a channel including several solar cell modules; determining, by the control unit, which channel is faulty based on the amount of power generation for each channel from the channel monitor;
  • the monitoring data transmitting unit connected to the plurality of solar cell modules, respectively, monitors the solar cell module of the failed channel by the voltage measurement method under the control of the control unit, and outputs the monitoring data to the monitoring data receiving unit through infrared communication. to do; determining, by the monitoring data receiving unit, whether a corresponding solar cell module has failed based on the monitoring data; and displaying, by the monitoring data receiving unit, whether a corresponding solar cell module has failed according to the result of the determining.
  • the solar cell module monitoring method the channel monitor, monitoring the amount of power generation of a channel including a plurality of solar cell modules; determining, by the control unit, which channel is faulty based on the amount of power generation for each channel from the channel monitor;
  • the monitoring data transmission unit connected to the plurality of solar cell modules, respectively, monitors the solar cell module of the faulty channel by the current measurement method under the control of the control unit, and outputs the monitoring data to the monitoring data receiving unit through infrared communication. to do; determining, by the monitoring data receiving unit, whether a corresponding solar cell module has failed based on the monitoring data; and displaying, by the monitoring data receiving unit, whether a corresponding solar cell module has failed according to the result of the determining.
  • the failure of the corresponding solar cell module is additionally determined. You can tell right away without taking any measurements.
  • FIG. 1 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a first embodiment of the present invention.
  • FIG. 2 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a second embodiment of the present invention.
  • FIG. 3 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a third embodiment of the present invention.
  • FIG. 4 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a fourth embodiment of the present invention.
  • FIG. 5 is a block diagram of a solar cell module monitoring device according to the present invention.
  • FIG. 6 is a flowchart illustrating a method for monitoring a solar cell module according to a first embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating a method for monitoring a solar cell module according to a second embodiment of the present invention.
  • FIG. 1 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a first embodiment of the present invention.
  • the monitoring data transmitting unit 10 and the monitoring data receiving unit 20 shown in FIG. 1 are components included in the solar cell module monitoring apparatus of the present invention.
  • the monitoring data transmission unit 10 may be mounted (connected) to the solar cell module in normal times. That is, the monitoring data transmission unit 10 is fastened to the connector terminal unit 1 on the solar cell side and the connector terminal unit 2 on the inverter side.
  • the monitoring data transmitting unit 10 may monitor the connected solar cell module by a voltage measurement method and transmit the monitoring data to the monitoring data receiving unit 20 .
  • the monitoring data transmitter 10 may include an amplifier 11 , a comparator 12 , and an infrared transmitter 13 .
  • the monitoring data receiving unit 20 it is preferable to dispose the monitoring data receiving unit 20 to face the monitoring data transmitting unit 10 in a short distance. Alternatively, it may be constantly placed in a short distance and monitored at all times. This is because the monitoring data transmitting unit 10 and the monitoring data receiving unit 20 use infrared communication. Since infrared communication has a short communication distance, in the case of monitoring, it is better to arrange the infrared transmitter 13 of the monitoring data transmitter 10 and the infrared receiver 21 of the monitoring data receiver 20 to face each other in a short distance. good. On the other hand, the advantage of infrared communication is that it is difficult to steal or modulate data from the outside.
  • the amplifying unit 11 amplifies the measured voltage of the corresponding solar cell module as the switch S1 is turned on by the monitoring control signal.
  • the switch S1 may maintain an always-on state, and may maintain an ON state only when necessary (ie, when monitoring is performed) and may maintain an OFF state in normal times.
  • the above-described measured voltage of the solar cell module is measured when the amount of solar radiation is such that the voltage is output from the solar cell in the solar cell module.
  • the amplifying unit 11 may receive a voltage between the solar cell side and the inverter side in the corresponding solar cell module and amplify it to a predetermined level.
  • the comparison unit 12 compares the voltage value from the amplifying unit 11 with a preset reference value, and when the voltage value from the amplifying unit 11 is equal to or greater than the preset reference value, a signal indicating that the generated voltage of the corresponding solar cell module is normal may be sent to the infrared transmitter 13 .
  • the comparator 12 may send a signal indicating that the generated voltage of the corresponding solar cell module is abnormal to the infrared transmitter 13 .
  • the reference value is up to the designer to design. And, that the measured and amplified voltage value is smaller than the preset reference value means that the output voltage of the corresponding solar cell module in the solar panel is smaller than the reference value, which means that the probability that the corresponding solar cell module has a failure is high. do.
  • the infrared transmitter 13 includes an infrared (IR) light emitting lamp (eg, an infrared light emitting LED) (not shown).
  • IR infrared
  • LED infrared light emitting LED
  • the infrared transmitter 13 When the infrared transmitter 13 receives a signal indicating that it is normal from the comparator 12 , the infrared light emitting lamp is turned on to transmit infrared rays to the monitoring data receiver 20 .
  • the infrared transmitter 13 receives a signal indicating that it is abnormal from the comparator 12 , the infrared light emitting lamp is turned off and thus the infrared light cannot be transmitted to the monitoring data receiver 20 .
  • each monitoring data transmission unit 10 Since the above-described monitoring data transmission unit 10 is mounted (connected) to each solar cell module, each monitoring data transmission unit 10 has a unique identification number (ID). Accordingly, when the infrared transmitter 13 transmits infrared rays, it can be seen that the corresponding unique identification number (ID) is also transmitted. In this way, the monitoring data receiving unit 20 can quickly identify the infrared rays from which monitoring data transmitting unit 10 .
  • ID unique identification number
  • the monitoring data receiving unit 20 determines and displays whether the corresponding solar cell module is faulty based on the monitoring data from the monitoring data transmitting unit 10 (that is, the result according to the on/off of the infrared light emitting lamp), and displays it outside (eg, , server) to send the judgment result.
  • the monitoring data receiving unit 20 may include an infrared receiving unit 21 , a determining unit 22 , a display unit 23 , a storage unit 24 , and a communication unit 25 .
  • the infrared receiver 21 includes an infrared (IR) light receiving lamp (eg, an infrared light receiving LED) (not shown).
  • IR infrared
  • LED infrared light receiving LED
  • the infrared receiver 21 may receive infrared rays from the infrared transmitter 13 of the monitoring data transmitter 10 . That is, it can be seen that the infrared receiver 21 receives the monitoring data from the monitoring data transmitter 10 .
  • the determination unit 22 may determine whether a corresponding solar cell module has failed according to the presence or absence of infrared rays received by the infrared reception unit 21 (ie, monitoring data).
  • the determination unit 22 may determine that the corresponding solar cell module is normal when there is infrared light received by the infrared receiving unit 21 for a preset period of time.
  • the determination unit 22 may determine that the corresponding solar cell module has failed when the infrared rays received by the infrared reception unit 21 are absent for a preset period of time.
  • the display unit 23 may display whether the corresponding solar cell module has failed according to the determination result (ie, normal or failed) of the determination unit 22 .
  • the display unit 23 may display a character indicating that the solar cell module is normal or may light a blue lamp to inform that the solar cell module is normal.
  • the display unit 23 when the display unit 23 receives the failure determination signal from the determination unit 22 , it may display a text indicating that the corresponding solar cell module is defective or may light a red lamp to notify the failure.
  • the storage unit 24 may store the determination result of the determination unit 22 .
  • the communication unit 25 may transmit the determination result of the determination unit 22 to an external server (not shown).
  • the comparator 12 when the voltage value from the amplifier 11 is less than a preset reference value, the comparator 12 sends a signal indicating that the generated voltage of the solar cell module is abnormal to the infrared transmitter 13 .
  • the question of whether to notify when the measured value is greater than the reference value or when it is less is only up to the designer's choice, and the result is the same.
  • the amplifying unit 11 is employed in FIG. 1 described above, it may be substituted with a step-down unit that steps down the measured voltage to an appropriate level if necessary.
  • unexplained reference numeral 3 denotes a diode for preventing reverse current.
  • the comparator 12 may be replaced with an analog/digital converter.
  • the voltage value output from the amplifying unit 11 is converted into a digital value corresponding thereto by the analog/digital conversion unit and applied to the infrared transmitting unit 13, and the infrared transmitting unit 13 is a digital value of the measured voltage.
  • the infrared communication method may be implemented as an infrared pulse transmission/reception method.
  • the determination unit 22 of the monitoring data receiving unit 20 compares the digital value of the measured voltage received by the infrared receiving unit 21 with digital values from the monitoring data transmitting unit connected to another solar cell module to a specific size. (or ratio) or less, it is determined that the corresponding solar cell module has failed and it can be displayed.
  • FIG. 2 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a second embodiment of the present invention.
  • the monitoring data transmitter 30 and the monitoring data receiver 40 shown in FIG. 2 are components included in the solar cell module monitoring apparatus of the present invention.
  • the monitoring data transmitter 30 may be mounted (connected) to the solar cell module in normal times. That is, the monitoring data transmitting unit 30 is fastened to the connector terminal unit 1 on the solar cell side and the connector terminal unit 2 on the inverter side.
  • the monitoring data transmitting unit 30 may monitor the connected solar cell module by a voltage measurement method and transmit the monitoring data to the monitoring data receiving unit 40 .
  • the monitoring data transmitting unit 30 may include an amplifying unit 31 , a comparing unit 32 , a determining unit 33 , and an infrared transmitting unit 34 .
  • the monitoring data receiving unit 40 In the case of monitoring, it is preferable to dispose the monitoring data receiving unit 40 to face the monitoring data transmitting unit 30 in a short distance. Alternatively, it may be constantly placed in a short distance and monitored at all times. This is because the monitoring data transmitting unit 30 and the monitoring data receiving unit 40 use infrared communication. Since infrared communication has a short communication distance, when monitoring is performed, it is recommended to place the infrared transmitter 34 of the monitoring data transmitter 30 and the infrared receiver 41 of the monitoring data receiver 40 in a short distance to face each other. good. On the other hand, the advantage of infrared communication is that it is difficult to steal or modulate data from the outside.
  • the amplifying unit 31 amplifies the measured voltage of the corresponding solar cell module as the switch S1 is turned on by the monitoring control signal.
  • the switch S1 may maintain an always-on state, and may maintain an ON state only when necessary (ie, when monitoring is performed) and may maintain an OFF state in normal times.
  • the above-described measured voltage of the solar cell module is measured when the amount of solar radiation is such that the voltage is output from the solar cell in the solar cell module.
  • the amplifying unit 31 may receive a voltage between the solar cell side and the inverter side in the corresponding solar cell module and amplify it to a predetermined level.
  • the comparison unit 32 compares the voltage value from the amplification unit 31 with a preset reference value, and when the voltage value from the amplification unit 31 is greater than or equal to the preset reference value, a signal indicating that the generated voltage of the solar cell module is normal may be sent to the determination unit 33 .
  • the comparator 32 may send a signal indicating that the generated voltage of the corresponding solar cell module is abnormal to the determination unit 33 .
  • the reference value is up to the designer to design. And, that the measured and amplified voltage value is smaller than the preset reference value means that the output voltage of the corresponding solar cell module in the solar panel is smaller than the reference value, which means that the probability that the corresponding solar cell module has a failure is high. do.
  • the determination unit 33 may determine whether the corresponding solar cell module has failed based on the signal from the comparison unit 32 .
  • the determination unit 33 may determine that the corresponding solar cell module is normal. Accordingly, the determination unit 33 may transmit a corresponding normal determination signal to the infrared transmission unit 34 .
  • the determination unit 33 may determine that the corresponding solar cell module has failed. Accordingly, the determination unit 33 may transmit a corresponding failure determination signal to the infrared transmission unit 34 .
  • the infrared transmitter 34 includes an infrared (IR) light emitting lamp (eg, an infrared light emitting LED) (not shown).
  • IR infrared
  • LED infrared light emitting LED
  • the infrared transmitting unit 34 When the infrared transmitting unit 34 receives a normal determination signal from the determining unit 33 , the infrared light emitting lamp is turned on to transmit infrared rays to the monitoring data receiving unit 40 .
  • the infrared transmitting unit 34 receives a failure determination signal from the determining unit 33 , the infrared light emitting lamp is turned OFF and thus the infrared light cannot be transmitted to the monitoring data receiving unit 40 .
  • each monitoring data transmitting unit 30 Since the above-described monitoring data transmitting unit 30 is mounted (connected) to each solar cell module, each monitoring data transmitting unit 30 has a unique identification number (ID). Accordingly, when the infrared transmitter 34 transmits infrared rays, it can be seen that the corresponding unique identification number (ID) is also transmitted. In this way, the monitoring data receiving unit 40 can quickly identify the infrared rays from which monitoring data transmitting unit 30 .
  • ID unique identification number
  • the monitoring data receiving unit 40 displays whether the corresponding solar cell module is faulty based on the monitoring data from the monitoring data transmitting unit 30 (ie, the result of on/off of the infrared light emitting lamp), and external (eg, the server). ) to send fault information.
  • the monitoring data receiving unit 40 may include an infrared receiving unit 41 , a display unit 42 , a storage unit 43 , and a communication unit 44 .
  • the infrared receiver 41 includes an infrared (IR) light receiving lamp (eg, an infrared light receiving LED) (not shown).
  • IR infrared
  • LED infrared light receiving LED
  • the infrared receiver 41 may receive infrared rays from the infrared transmitter 34 of the monitoring data transmitter 30 . That is, it can be seen that the infrared receiver 41 receives the monitoring data from the monitoring data transmitter 30 .
  • the display unit 42 may display whether the corresponding solar cell module has failed according to the signal received from the infrared receiver 41 .
  • the display unit 42 may display a character indicating that the solar cell module is normal or may light a blue lamp to inform that the solar cell module is normal.
  • the display unit 42 may display a text indicating that the solar cell module is faulty or may light a red lamp to notify the fault.
  • the storage unit 43 may store the signal (including the date and time) received by the infrared receiving unit 41 .
  • the communication unit 44 may transmit the signal (including the date and time) received by the infrared receiving unit 41 to an external server (not shown).
  • the comparator 32 when the voltage value from the amplifying unit 31 is less than a preset reference value, the comparator 32 sends a signal indicating that the generated voltage of the corresponding solar cell module is abnormal to the determination unit 33 .
  • the question of whether to notify when the measured value is greater than the reference value or when it is less is only up to the designer's choice, and the result is the same.
  • the amplifying unit 31 is employed in FIG. 2 described above, if necessary, it may be substituted with a step-down unit that steps down the measured voltage to an appropriate level.
  • FIG. 3 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a third embodiment of the present invention.
  • the monitoring data transmitting unit 50 and the monitoring data receiving unit 60 shown in FIG. 3 are components included in the solar cell module monitoring apparatus of the present invention.
  • the monitoring data transmitter 50 may be mounted (connected) to the solar cell module in normal times. That is, the monitoring data transmitting unit 50 is fastened to the connector terminal unit 1 on the solar cell side and the connector terminal unit 2 on the inverter side.
  • the monitoring data transmitter 50 may monitor the connected solar cell module by a current measurement method and transmit the monitoring data to the monitoring data receiver 60 .
  • the monitoring data transmitter 50 may include an amplifier 51 , a comparator 52 , and an infrared transmitter 53 .
  • the monitoring data receiving unit 60 it is preferable to dispose the monitoring data receiving unit 60 to face the monitoring data transmitting unit 50 in a short distance. Alternatively, it can be constantly placed in a short-distance state and monitored at all times. This is because the monitoring data transmitting unit 50 and the monitoring data receiving unit 60 use infrared communication. Since infrared communication has a short communication distance, when monitoring is performed, it is preferable to arrange the infrared transmitter 53 of the monitoring data transmitter 50 and the infrared receiver 61 of the monitoring data receiver 60 to face each other in a short distance. good. On the other hand, the advantage of infrared communication is that it is difficult to steal or modulate data from the outside.
  • the amplification unit 51 converts the current measured by the current sensor 4 (that is, the current value measured by the current sensor 4) to a corresponding It means that it is converted into voltage value) and amplifies it to an appropriate size.
  • the switch S2 may maintain an always-on state, and may maintain an ON state only when necessary (ie, when monitoring is performed) and may maintain an OFF state in normal times. Meanwhile, it is assumed that the above-described measured current of the solar cell module is measured when the amount of solar radiation is such that the current is output from the solar cell in the solar cell module.
  • the amplifying unit 51 may receive the converted current measured by the current sensor 4 installed between the solar cell side and the inverter side in the corresponding solar cell module and amplify it to a predetermined level.
  • the current sensor 4 may be configured as a non-inductive resistor having a very low value, or may be configured as a Hall sensor capable of measuring both AC and DC current.
  • the comparator 52 compares the current value from the amplifying unit 51 (that is, the amplified measured current converted voltage) with a preset reference value, and if the current value from the amplifying unit 51 is greater than or equal to the preset reference value, the A signal indicating that the generated current of the battery module is normal may be sent to the infrared transmitter 53 .
  • the comparator 52 transmits a signal indicating that the generated current of the corresponding solar cell module is abnormal. ) can be sent to
  • the reference value is up to the designer to design. And, the fact that the measured and amplified current value is smaller than the preset reference value means that the output current of the corresponding solar cell module in the solar panel is smaller than the reference value, which means that the probability that the corresponding solar cell module has a failure is high. do.
  • the infrared transmitter 53 includes an infrared (IR) light emitting lamp (eg, an infrared light emitting LED) (not shown).
  • IR infrared
  • LED infrared light emitting LED
  • the infrared transmitter 53 When the infrared transmitter 53 receives a signal indicating that it is normal from the comparator 52 , the infrared light emitting lamp is turned on to transmit infrared rays to the monitoring data receiver 60 .
  • the infrared transmitter 53 receives a signal indicating that it is abnormal from the comparator 52 , the infrared light emitting lamp is turned off and thus the infrared light cannot be transmitted to the monitoring data receiver 60 .
  • each monitoring data transmission unit 50 Since the above-described monitoring data transmission unit 50 is mounted (connected) to each solar cell module, each monitoring data transmission unit 50 has a unique identification number (ID). Accordingly, when the infrared transmitter 53 transmits infrared rays, it can be seen that the corresponding unique identification number (ID) is also transmitted. In this way, the monitoring data receiving unit 60 can quickly identify the infrared from which monitoring data transmitting unit 50 .
  • ID unique identification number
  • the monitoring data receiving unit 60 determines and displays whether the corresponding solar cell module is faulty based on the monitoring data from the monitoring data transmitting unit 50 (that is, the result according to the on/off of the infrared light emitting lamp), and displays it outside (eg, , server) to send the judgment result.
  • the monitoring data receiving unit 60 may include an infrared receiving unit 61 , a determining unit 62 , a display unit 63 , a storage unit 64 , and a communication unit 65 .
  • the infrared receiver 61 includes an infrared (IR) light receiving lamp (eg, an infrared light receiving LED) (not shown).
  • IR infrared
  • the infrared receiver 61 may receive infrared rays from the infrared transmitter 53 of the monitoring data transmitter 50 . That is, it can be seen that the infrared receiver 61 receives the monitoring data from the monitoring data transmitter 50 .
  • the determination unit 62 may determine whether the corresponding solar cell module is faulty according to the presence or absence of infrared rays received by the infrared receiving unit 61 (ie, monitoring data).
  • the determination unit 62 may determine that the corresponding solar cell module is normal when there is infrared light received by the infrared receiving unit 61 for a preset period of time.
  • the determination unit 62 may determine that the corresponding solar cell module is malfunctioning when the infrared rays received by the infrared receiving unit 61 are absent for a preset period of time.
  • the display unit 63 may display whether the corresponding solar cell module has failed according to the determination result (ie, normal or failed) of the determination unit 62 .
  • the display unit 63 may display a text indicating that the corresponding solar cell module is normal or may light a blue lamp to inform that it is normal.
  • the display unit 63 may display a text indicating that the solar cell module is defective or may light a red lamp to notify the failure.
  • the storage unit 64 may store the determination result of the determination unit 62 .
  • the communication unit 65 may transmit the determination result of the determination unit 62 to an external server (not shown).
  • the comparison unit 52 indicates that the generated current of the solar cell module is abnormal when the current value (that is, the amplified measured current converted voltage) from the amplifying unit 51 is less than a preset reference value.
  • the comparator 52 may be replaced with an analog/digital converter.
  • the current value output from the amplifying unit 51 ie, the amplified measured current converted voltage
  • the infrared transmitting unit 53 the infrared The transmitter 53 may transmit the digital value of the measured current to the monitoring data receiver 60 through an infrared communication method.
  • the infrared communication method may be implemented as an infrared pulse transmission/reception method.
  • the determination unit 62 of the monitoring data receiving unit 60 compares the digital value of the measured current received by the infrared receiving unit 61 with digital values from the monitoring data transmitting unit connected to another solar cell module to a specific size. (or ratio) or less, it is determined that the corresponding solar cell module has failed and it can be displayed.
  • FIG. 4 is a diagram showing the configuration of a monitoring data transmitter and a monitoring data receiver applied to a fourth embodiment of the present invention.
  • the monitoring data transmitting unit 70 and the monitoring data receiving unit 80 shown in FIG. 4 are components included in the solar cell module monitoring apparatus of the present invention.
  • the monitoring data transmission unit 70 may be mounted (connected) to the solar cell module in normal times. That is, the monitoring data transmitting unit 70 is fastened to the connector terminal unit 1 on the solar cell side and the connector terminal unit 2 on the inverter side.
  • the monitoring data transmitter 70 may monitor the connected solar cell module by a current measurement method and transmit the monitoring data to the monitoring data receiver 80 .
  • the monitoring data transmitting unit 70 may include an amplifying unit 71 , a comparing unit 72 , a determining unit 73 , and an infrared transmitting unit 74 .
  • the monitoring data receiving unit 80 it is preferable to dispose the monitoring data receiving unit 80 to face the monitoring data transmitting unit 70 in a short distance. Alternatively, it may be constantly placed in a short distance and monitored at all times. This is because the monitoring data transmitting unit 70 and the monitoring data receiving unit 80 use infrared communication. Since infrared communication has a short communication distance, in the case of monitoring, it is better to arrange the infrared transmitter 74 of the monitoring data transmitter 70 and the infrared receiver 81 of the monitoring data receiver 80 to face each other in a short distance. good. On the other hand, the advantage of infrared communication is that it is difficult to steal or modulate data from the outside.
  • the amplification unit 71 converts the current measured by the current sensor 4 (that is, the current value measured by the current sensor 4) to the corresponding It means that it is converted into voltage value) and amplifies it to an appropriate size.
  • the switch S2 may maintain an always-on state, and may maintain an ON state only when necessary (ie, when monitoring is performed) and may maintain an OFF state in normal times. Meanwhile, it is assumed that the above-described measured current of the solar cell module is measured when the amount of solar radiation is such that the current is output from the solar cell in the solar cell module.
  • the amplifying unit 71 may receive the measured current converted voltage of the current sensor 40 installed between the solar cell side and the inverter side in the corresponding solar cell module and amplify it to a predetermined level. .
  • the comparator 72 compares the current value from the amplifying unit 71 (that is, the amplified measured current converted voltage) with a preset reference value, and if the current value from the amplifying unit 71 is greater than or equal to the preset reference value, the A signal indicating that the generated current of the battery module is normal may be sent to the determination unit 73 .
  • the comparator 72 determines a signal indicating that the generated current of the solar cell module is abnormal when the current value (ie, the amplified measured current converted voltage) from the amplifying unit 71 is less than a preset reference value. ) can be sent to
  • the reference value is up to the designer to design. And, the fact that the measured and amplified current value is smaller than the preset reference value means that the output current of the corresponding solar cell module in the solar panel is smaller than the reference value, which means that the probability that the corresponding solar cell module has a failure is high. do.
  • the determination unit 73 may determine whether the corresponding solar cell module has failed based on the signal from the comparison unit 72 .
  • the determination unit 73 may determine that the corresponding solar cell module is normal. Accordingly, the determination unit 73 may transmit a corresponding normal determination signal to the infrared transmission unit 74 .
  • the determination unit 73 when the determination unit 73 receives a signal indicating that the generated current of the corresponding solar cell module is abnormal, it may determine that the corresponding solar cell module has failed. Accordingly, the determination unit 73 may transmit a corresponding failure determination signal to the infrared transmission unit 74 .
  • the infrared transmitter 74 includes an infrared (IR) light emitting lamp (eg, an infrared light emitting LED) (not shown).
  • IR infrared
  • the infrared transmitting unit 74 When the infrared transmitting unit 74 receives the normal determination signal from the determining unit 73 , the infrared light emitting lamp is turned on to transmit infrared rays to the monitoring data receiving unit 80 .
  • the infrared transmitting unit 74 receives a failure determination signal from the determining unit 73 , the infrared light emitting lamp is turned OFF and thus the infrared light cannot be transmitted to the monitoring data receiving unit 80 .
  • each monitoring data transmission unit 70 Since the above-described monitoring data transmission unit 70 is mounted (connected) to each solar cell module, each monitoring data transmission unit 70 has a unique identification number (ID). Accordingly, when the infrared transmitter 74 transmits infrared rays, it can be seen that the corresponding unique identification number (ID) is also transmitted. In this way, the monitoring data receiving unit 80 can quickly identify the infrared from which monitoring data transmitting unit 70 .
  • ID unique identification number
  • the monitoring data receiving unit 80 determines and displays whether the corresponding solar cell module is faulty based on the monitoring data from the monitoring data transmitting unit 70 (that is, the result according to the on/off of the infrared light emitting lamp), and displays it outside (eg, , server) to send the judgment result.
  • the monitoring data receiving unit 80 may include an infrared receiving unit 81 , a display unit 82 , a storage unit 83 , and a communication unit 84 .
  • the infrared receiver 81 includes an infrared (IR) light receiving lamp (eg, an infrared light receiving LED) (not shown).
  • IR infrared
  • the infrared receiver 81 may receive infrared rays from the infrared transmitter 74 of the monitoring data transmitter 70 . That is, it can be seen that the infrared receiver 81 receives the monitoring data from the monitoring data transmitter 70 .
  • the display unit 82 may display whether the corresponding solar cell module has failed according to the signal received by the infrared receiver 81 .
  • the display unit 82 may display a text indicating that the solar cell module is normal or may light a blue lamp to inform that the solar cell module is normal.
  • the display unit 82 may display a text indicating that the solar cell module is faulty or may light a red lamp to notify the fault.
  • the storage unit 83 may store the signal (including the date and time) received by the infrared receiver 81 .
  • the communication unit 84 may transmit the signal (including time) received by the infrared receiving unit 81 to an external server (not shown).
  • the comparison unit 72 indicates that the generated current of the solar cell module is abnormal when the current value (that is, the amplified measured current converted voltage) from the amplifying unit 31 is less than a preset reference value.
  • FIG. 5 is a block diagram of a solar cell module monitoring device according to the present invention.
  • the solar cell module monitoring apparatus may include a monitoring data transmitter, a monitoring data receiver, channel monitors 130a to 130n, and a controller 140 .
  • the reference numeral 10 of the monitoring data transmission unit is only an example.
  • the monitoring data transmission unit is any one of the monitoring data transmission unit 10 of FIG. 1 , the monitoring data transmission unit 30 of FIG. 2 , the monitoring data transmission unit 50 of FIG. 3 , and the monitoring data transmission unit 70 of FIG. 4 . can
  • the monitoring data transmitting unit during monitoring includes the monitoring data transmitting unit 10 of FIG. 1 , the monitoring data transmitting unit 30 of FIG. 2 , the monitoring data transmitting unit 50 of FIG. 3 , and Of course, depending on which one of the monitoring data transmitting unit 70 of FIG. 4, the corresponding monitoring data receiving unit may be disposed in a short distance to face each other.
  • a plurality of solar cell modules are disposed in the solar panel 10 , and the plurality of solar cell modules are bundled in a channel unit.
  • reference numerals 110a and 110n denote channels.
  • one monitoring data transmitter (one of 10, 30, 50, and 70) is connected to each solar cell module.
  • Each channel monitor (130a ⁇ 130n) detects the amount of power generation of the corresponding channel and transmits it to the control unit (140).
  • the control unit 140 determines which channel is faulty based on the amount of power generation for each channel from each of the channel monitors 130a to 130n, and outputs a monitoring control signal for the corresponding channel. That is, the controller 140 may determine that the corresponding channel is faulty if there is a power generation amount that is significantly different from the generation amount of other channels among the generation amount of each channel of each channel monitor 130a to 130n.
  • monitoring data transmitters 10, 30, 50, and 70 of the corresponding channel receive monitoring data corresponding to each monitoring as described above.
  • an infrared light emitting lamp on signal or off signal is sent to the monitoring data receiving unit (any one of 20, 40, 60, 80).
  • the monitoring data receiving unit any one of 20, 40, 60, and 80
  • the monitoring data receiving unit may display whether the solar cell module has failed based on monitoring data from several monitoring data transmitting units.
  • reference numeral 120 denotes an inverter that receives generation amount (ie, direct current power) for each channel and converts it into AC power.
  • the AC power converted by the inverter 120 will be supplied to a consumer (ie, a device or facility that consumes power).
  • the channel monitors 130a and 130n and the control unit 140 are configured to perform individual monitoring of the solar cell modules of the failed channel after the channel monitoring to identify the actually failed solar cell module.
  • the monitoring data of the solar cell module may be transmitted directly from the monitoring data transmitter mounted on the solar cell module to the control unit 140 without using the channel monitors 130a and 130n. Accordingly, it is possible to directly monitor the solar cell module without using the channel monitors 130a and 130n.
  • the monitoring data transmitter mounted on the solar cell module directly transmits the monitoring data of the solar cell module to the monitoring data receiver as shown in FIGS. 1 to 4 .
  • the monitoring data receiving unit may be configured to send information about the failed solar cell module to the outside.
  • FIG. 6 is a flowchart illustrating a method for monitoring a solar cell module according to a first embodiment of the present invention.
  • the n channel monitor (130a ⁇ 130n) monitors each channel (S10).
  • the channel monitors 130a to 130n detect the generation amount of the corresponding channel and transmit it to the controller 140 .
  • control unit 140 determines which channel is faulty based on the generation amount for each channel from each of the channel monitors 130a to 130n (S12).
  • each monitoring data transmitter one of 10 and 50 connected to the solar cell modules of the corresponding channel. Accordingly, each of the monitoring data transmitters 10 and 50 receiving the monitoring control signal is activated. That is, the switch S1 or S2 is turned on (S14).
  • Each of the monitoring data transmitters 10 and 50 activated in this way monitors the currently connected solar cell module, and transmits the monitoring data to the monitoring data receiver (any one among 20 and 60). (S16, S18).
  • the monitoring data transmitting unit connected to the solar cell modules of the failed channel is the monitoring data transmitting unit 10 of FIG. 1
  • the following monitoring is performed. That is, as the switch S1 of the monitoring data transmitting unit 10 is turned on, the amplifying unit 11 amplifies the voltage between the solar cell side and the inverter side of the corresponding solar cell module to a predetermined level and sends it to the comparator 12 .
  • the comparison unit 12 compares the voltage value from the amplifying unit 11 with a preset reference value, and when the voltage value from the amplifying unit 11 is equal to or greater than the preset reference value, a signal indicating that the generated voltage of the corresponding solar cell module is normal is sent to the infrared transmitter 13 , and when the voltage value from the amplifier 11 is less than a preset reference value, a signal indicating that the generated voltage of the corresponding solar cell module is abnormal is sent to the infrared transmitter 13 . Accordingly, when the infrared transmitting unit 13 receives a signal indicating that it is normal, the infrared light emitting lamp is turned on and transmits infrared rays to the monitoring data receiving unit 20.
  • the infrared light emitting lamp When a signal indicating abnormality is received, the infrared light emitting lamp is turned on. is OFF, so that infrared rays cannot be transmitted to the monitoring data receiving unit 20 .
  • the result according to the on/off of the infrared light emitting lamp may be referred to as monitoring data.
  • the infrared transmitter 13 also transmits the unique identification number (ID) of the solar cell module.
  • the comparison unit 12 may be replaced with an analog/digital conversion unit to perform monitoring.
  • the voltage value output from the amplifying unit 11 is converted into a digital value corresponding thereto by the analog/digital conversion unit and applied to the infrared transmitting unit 13, and the infrared transmitting unit 13 is a digital value of the measured voltage.
  • the monitoring data receiving unit 20 in the infrared communication method.
  • the digital value of the measured voltage may be referred to as monitoring data.
  • the monitoring data transmitting unit connected to the solar cell modules of the failed channel is the monitoring data transmitting unit 50 of FIG. 3 .
  • the following monitoring is performed. That is, as the switch S2 of the monitoring data transmitting unit 50 is turned on, the amplifying unit 51 amplifies the current between the solar cell side and the inverter side of the corresponding solar cell module to a predetermined level and sends it to the comparator 52 .
  • the comparison unit 52 compares the current value from the amplification unit 51 with a preset reference value, and when the current value from the amplification unit 51 is equal to or greater than the preset reference value, a signal indicating that the generated current of the solar cell module is normal is sent to the infrared transmitter 53 , and when the current value from the amplification part 51 is less than a preset reference value, a signal indicating that the generated current of the corresponding solar cell module is abnormal is sent to the infrared transmitter 53 .
  • the infrared transmitting unit 53 when the infrared transmitting unit 53 receives a signal indicating that it is normal, the infrared light emitting lamp is turned on to transmit infrared rays to the monitoring data receiving unit 20, and when a signal indicating that it is abnormal is received, the infrared light emitting lamp is turned on. is OFF, so that infrared rays cannot be transmitted to the monitoring data receiving unit 20 .
  • the result according to the on/off of the infrared light emitting lamp may be referred to as monitoring data.
  • the infrared transmitter 53 also transmits the unique identification number (ID) of the solar cell module.
  • ID unique identification number
  • the comparison unit 52 may be replaced with an analog/digital conversion unit to perform monitoring.
  • the current value output from the amplifying unit 51 is converted into a corresponding digital value by the analog/digital conversion unit and applied to the infrared transmitting unit 53, and the infrared transmitting unit 53 is a digital value of the measured current.
  • the monitoring data receiving unit 20 in the infrared communication method.
  • the digital value of the measured current may be referred to as monitoring data.
  • the monitoring data receiving units 20 and 60 determine whether the solar cell module is faulty based on the monitoring data from the monitoring data transmitting units 10 and 50 and display it (S20 and S22).
  • the determination unit 22 determines the presence or absence of infrared rays received by the infrared receiving unit 21 (that is, of the infrared light emitting lamp). As a result of on/off, it is determined whether the corresponding solar cell module has failed according to the monitoring data).
  • the determination unit 22 may determine that the solar cell module is normal when there is infrared rays received by the infrared receiver 21 for a preset time, and the infrared rays received by the infrared receiver 21 are not present for a preset time. In this case, it can be determined that the corresponding solar cell module has failed.
  • the display unit 23 displays whether the solar cell module is faulty according to the determination result (ie, normal or faulty) of the determination unit 22 .
  • the determination result of the determination unit 22 may be stored in the storage unit 24 and transmitted to an external server (not shown). If the monitoring data transmitting unit 50 has the same configuration as in FIG. 3 , the monitoring data receiving unit 60 operates in the same manner as the above-described operating description of the monitoring data receiving unit 20 , so a description thereof will be omitted.
  • the comparison units 12 and 52 of the monitoring data transmitting units 10 and 50 described above can be replaced with an analog/digital conversion unit.
  • the determination units 22 and 62 of the monitoring data receiving units 20 and 60 are ) compares the digital value of the measured voltage or measured current received by the infrared receivers 21 and 61 with digital values from the monitoring data transmitter connected to another solar cell module, and if the value is less than a specific size (or ratio), the corresponding It may be determined that the solar cell module has failed, and the determination result may be displayed.
  • the channel is monitored to monitor the solar cell modules of the faulty channel, but the channel monitoring step may be excluded. That is, if the channel monitoring step is excluded, the monitoring data transmitter (one of 10, 50) connected to the solar cell module in a voltage measurement method monitors the solar cell module and transmits the monitoring data through infrared communication. It may be output to the receiving unit (one of 20 and 60), and the monitoring data receiving unit (one of 20 and 60) may determine whether the corresponding solar cell module is in failure based on the monitoring data and display the failure.
  • the monitoring data transmitter one of 10, 50
  • the monitoring data receiving unit one of 20 and 60
  • FIG. 7 is a flowchart illustrating a method for monitoring a solar cell module according to a second embodiment of the present invention.
  • the n channel monitor (130a ⁇ 130n) monitors each channel (S30).
  • the channel monitors 130a to 130n detect the generation amount of the corresponding channel and transmit it to the controller 140 .
  • control unit 140 determines which channel is faulty based on the generation amount for each channel from each channel monitor (130a ⁇ 130n) (S32).
  • each monitoring data transmitter any one of 30 and 70 connected to the solar cell modules of the corresponding channel. Accordingly, each of the monitoring data transmitters 30 and 70 receiving the monitoring control signal is activated. That is, the switch S1 or S2 is turned on (S34).
  • Each of the monitoring data transmitters 30 and 70 activated in this way performs monitoring on the currently connected solar cell module and determines whether there is a failure (S36, S38).
  • the monitoring data transmitting unit connected to the solar cell modules of the failed channel is the monitoring data transmitting unit 30 of FIG. 2
  • the following monitoring is performed. That is, as the switch S1 of the monitoring data transmitting unit 30 is turned on, the amplifying unit 31 amplifies the voltage between the solar cell side and the inverter side of the corresponding solar cell module to a predetermined level and sends it to the comparator 32 .
  • the comparison unit 32 compares the voltage value from the amplification unit 31 with a preset reference value, and when the voltage value from the amplification unit 31 is greater than or equal to the preset reference value, a signal indicating that the generated voltage of the solar cell module is normal is sent to the determination unit 33 , and when the voltage value from the amplification unit 31 is less than a preset reference value, a signal indicating that the generated voltage of the corresponding solar cell module is abnormal is transmitted to the determination unit 33 .
  • the determination unit 33 receives a signal indicating that the power generation voltage of the solar cell module is normal from the comparison unit 32 , it determines that the solar cell module is normal and sends a corresponding normal determination signal to the infrared transmitting unit 34 .
  • the determination unit 33 receives a signal indicating that the generated voltage of the corresponding solar cell module is abnormal from the comparator 32, it is determined that the corresponding solar cell module has failed and transmits a corresponding failure determination signal to the infrared transmitter 34 ) is sent to
  • the monitoring data transmitting unit connected to the solar cell modules of the failed channel is the monitoring data transmitting unit 70 of FIG. 4 .
  • the following monitoring is performed. That is, as the switch S2 of the monitoring data transmitting unit 70 is turned on, the amplifying unit 71 amplifies the current between the solar cell side and the inverter side of the corresponding solar cell module to a predetermined level and sends it to the comparator 72 .
  • the comparison unit 72 compares the current value from the amplification unit 71 with a preset reference value, and when the current value from the amplification unit 71 is greater than or equal to the preset reference value, a signal indicating that the generated current of the solar cell module is normal is sent to the determination unit 73 , and when the current value from the amplification unit 71 is less than a preset reference value, a signal indicating that the generated current of the corresponding solar cell module is abnormal is transmitted to the determination unit 73 .
  • the determination unit 73 receives a signal indicating that the power generation current of the solar cell module is normal from the comparison unit 72 , it determines that the solar cell module is normal and sends a corresponding normal determination signal to the infrared transmitter 74 .
  • the determination unit 73 receives a signal indicating that the generated current of the corresponding solar cell module is abnormal from the comparison unit 72, it is determined that the corresponding solar cell module is faulty and transmits a corresponding failure determination signal to the infrared transmitting unit 74 ) is sent to
  • the infrared transmitters 34 and 74 transmit a failure signal to the monitoring data receivers 40 and 80 ( S40 ). That is, when the infrared transmitting units 34 and 74 receive a normal determination signal from the determining units 33 and 73, the infrared light emitting lamp is turned on to transmit infrared rays to the monitoring data receiving units 40 and 80, and the determination is made. When a failure determination signal is received from the units 33 and 73 , the infrared light emitting lamp is turned off, so that infrared rays cannot be transmitted to the monitoring data receivers 40 and 80 .
  • the result according to the on/off of the infrared light emitting lamp may be referred to as monitoring data.
  • the infrared transmitters 34 and 74 also transmit the unique identification number (ID) of the corresponding solar cell module.
  • ID unique identification number
  • the monitoring data receiving units 40 and 80 display whether the solar cell module is faulty based on the monitoring data from the monitoring data transmitting units 30 and 70 ( S42 ).
  • the display units 42 and 82 when receiving infrared light from the infrared receiving unit 41, display a character indicating that the solar cell module is normal or light a blue lamp to inform that it is normal, and the infrared receiving unit 41, If infrared rays are not received in 81), a text indicating that the solar cell module is faulty is displayed or a red lamp is turned on to notify the fault.
  • the channel is monitored to monitor the solar cell modules of the failed channel, but the channel monitoring step may be excluded. That is, when the channel monitoring step is excluded, the monitoring data transmitter (any one of 30 and 70) connected one-to-one to the solar cell module monitors the solar cell module and transmits the fault determination signal for the corresponding solar cell module through infrared communication monitoring data. It may be output to the receiving unit (one of 40 and 80), and the monitoring data receiving unit (one of 40 and 80) may display whether the corresponding solar cell module is faulty.
  • FIGS. 1 to 4 employ the monitoring data receiving unit, but in FIGS. 8 to 11, the monitoring data transmitting unit measures the current or voltage of the solar cell module without going through the monitoring data receiving unit and directly to the monitoring server or smart phone. Configured for remote notification.
  • the monitoring data transmitting unit 150 detects the output voltage of the connected solar cell module and notifies the remote monitoring server 160 or the monitoring smart phone 170 by wire/wireless. have.
  • the monitoring data transmission unit 150 may include an amplifying unit 151 , and an MPU 152 .
  • the amplification unit 151 of the monitoring data transmission unit 150 amplifies the voltage to an appropriate size, and the amplified voltage is applied to the MPU (152). ) is converted into digital data in the analog/digital conversion unit.
  • the output voltage value converted into digital data is transmitted to the monitoring server 160 or the monitoring smart phone 170 through the data remote communication unit.
  • a unique identification number (ID) to be transmitted together.
  • the monitoring server 160 or the monitoring smart phone 170 can store and compare/analyze the received output voltage value of each solar cell module to determine which solar cell module is faulty, and as a result can be displayed on the screen and notified to the administrator.
  • the method of notifying the administrator may be a mobile phone message, e-mail, or the like.
  • FIG. 8 shows the configuration of the monitoring data transmission unit 150 for a case in which the solar cell module in the channel is composed of one solar cell
  • FIG. 9 shows the case in which the solar cell module in the channel is composed of two solar cells.
  • the monitoring data transmitter 200 may detect the output current of the connected solar cell module and notify the remote monitoring server 210 or the monitoring smart phone 220 by wire/wireless.
  • the monitoring data transmission unit 200 may include an amplifying unit 201 and an MPU 202 .
  • the amplification unit 201 of the monitoring data transmission unit 200 amplifies the measured current converted voltage to an appropriate size, and the amplified voltage is It is converted into digital data in the analog/digital conversion unit of the MPU 202 .
  • the output current value converted into digital data is transmitted to the monitoring server 210 or the monitoring smart phone 220 through the data remote communication unit.
  • a unique identification number (ID) to be transmitted together.
  • the monitoring server 210 or the monitoring smart phone 220 may store and compare/analyze the output current value of each received solar cell module to determine which solar cell module is faulty, as a result can be displayed on the screen and notified to the administrator.
  • the method of notifying the administrator may be a mobile phone message, e-mail, or the like.
  • FIG. 10 shows the configuration of the monitoring data transmission unit 200 for a case in which the solar cell module in the channel is composed of one solar cell
  • FIG. 11 is a case in which the solar cell module in the channel is composed of two solar cells.
  • the configuration of the monitoring data transmission unit 230 is expressed.
  • the solar cell module monitoring method of the present invention described above can be implemented as a computer-readable code on a computer-readable recording medium.
  • the computer-readable recording medium includes all kinds of recording devices in which data readable by a computer system is stored. Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage device.
  • the computer-readable recording medium is distributed in a computer system connected through a network, so that the computer-readable code can be stored and executed in a distributed manner.
  • functional programs, codes, and code segments for implementing the method can be easily inferred by programmers in the art to which the present invention pertains.

Abstract

L'invention concerne un appareil et un procédé de surveillance de module de cellule solaire permettant de déterminer si un module de cellule solaire individuel, qui est une unité minimale d'un panneau solaire d'un système de génération d'énergie solaire, est endommagé. L'appareil selon l'invention comprend : un dispositif de surveillance de canal qui surveille la production d'énergie d'un canal comprenant plusieurs modules de cellule solaire ; une unité de commande qui détermine le canal endommagé, sur la base de la production d'énergie de chaque canal surveillé par le dispositif de surveillance de canal ; une unité de transmission de données de surveillance qui est connectée à chaque module des plusieurs modules de cellule solaire, et qui surveille un module de cellule solaire du canal endommagé conformément à un schéma de mesure de tension par une commande de l'unité de commande, pour délivrer des données de surveillance par communication infrarouge ; et une unité de réception de données de surveillance qui détermine si le module de cellule solaire correspondant est endommagé, sur la base des données de surveillance, et qui affiche un résultat de la détermination.
PCT/KR2020/015176 2019-12-12 2020-11-03 Appareil et procédé de surveillance de module de cellule solaire WO2021118062A1 (fr)

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