JP2010098078A - State monitoring device of photovoltaic generation system and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and reliably inform a monitor of abnormalities of various components such as solar cells and a power conditioner. <P>SOLUTION: A state monitoring device monitors the state of a photovoltaic generation system 10 including: solar cell panels 12 having a plurality of solar cells 13 arranged thereon; a solar cell module 11 having a plurality of solar cell panels 12 arranged therein; and various components such as a power conditioner 15 for converting a DC power obtained by the solar cell module 11 to an AC power. The device includes: a plurality of visible light sources 21 which detect abnormalities of various components to turn on or off visible light; a reception device 30 which is installed in a place distant from the solar cell module 11 and receives visible light of the plurality of visible light sources 21; and an abnormality locating device 40 which outputs and displays an abnormality to recognize it by visible light of the plurality of visible light sources 21, which is detected by the reception device 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a state monitoring device for a photovoltaic power generation system.

  Conventionally, in a photovoltaic power generation system, DC power obtained from a solar cell module in which a plurality of solar cell panels are arranged in series and in parallel is converted into AC power by a power conditioner (PCS). However, since the solar panels are connected in parallel, even if one of the solar panels or one of the multiple solar cells constituting the solar panel is damaged, the power generation capacity is reduced. Since only the total power is detected on the conditioner side, there is a problem that the operation is continued without being able to recognize the damage and deterioration of the solar cell panel.

  In order to prevent this, for example, as disclosed in Patent Document 1, a solar cell monitoring device capable of detecting an abnormality of a solar cell panel at an early stage has been developed. That is, the generated power for each panel of a plurality of solar battery panels is constantly monitored by the monitoring unit, the generated power for each panel is compared with the theoretical generated power value set in the monitoring unit, When the generated power value is smaller than the theoretical generated power value, it is detected that at least one of the solar battery panels is defective.

JP 11-175177 A

  By the way, in recent years, the photovoltaic power generation system has received a lot of interest in photovoltaic power generation from the viewpoint of energy saving and environmental protection, and a photovoltaic module using a large number of photovoltaic panels on the roof of an increasingly large site or factory facility. The size is increasing. Therefore, it is required to always manage the state of a large number of solar cell panels. However, it has been difficult to reliably and quickly find partial malfunctions of elements of the photovoltaic power generation system, such as solar cell panels and power conditioners (PCS).

  In the case of Patent Document 1, each solar cell panel is connected and wired to a power monitoring unit to detect an abnormality, and the power monitoring unit compares the measured value of the generated power of each battery panel with a preset reference value. Therefore, it was judged whether it was abnormal or not, and expensive equipment was required.

  The problem to be solved by the present invention is that an abnormality of various components such as a solar battery cell and a power conditioner (PCS) constituting a solar battery panel of a solar battery module installed in a vast area can be easily and reliably performed. The purpose is to inform the observer.

(Claim 1)
The invention according to claim 1 relates to a state monitoring device (20) of the solar power generation system that monitors the state of the solar power generation system (10).
The solar power generation system (10) includes a solar panel (12) in which a plurality of solar cells (13) are arranged, a solar cell module (11) in which the plurality of solar panels (12) are arranged, and the solar cell Various components such as a power conditioner (15) for converting DC power obtained by the battery module (11) into AC power are provided.
Further, a plurality of electromagnetic wave transmission sources (21) for detecting an abnormality of the various components and transmitting electromagnetic waves, and the plurality of electromagnetic wave transmission sources (21) installed at a place away from the solar cell module (11) A receiving device (30) for receiving the electromagnetic wave of the abnormal location identification device (40) for output and display to identify the abnormal location by the electromagnetic waves of the plurality of electromagnetic wave transmission sources (21) detected by the receiving device (30), Is provided.

(Glossary)
“Electromagnetic waves” are waves (waves) formed by changes in the electric and magnetic fields of the space, including radio waves (low frequency, very long wave, long wave, medium wave, short wave, ultra short wave, microwave) Etc.) and light waves (infrared rays, visible rays, ultraviolet rays, etc.).

(Function)
When an abnormality is detected in various components such as the solar cell (13) and the power conditioner (15) (PCS) constituting the solar cell panel (12) of the solar cell module (11) installed in a vast area, A corresponding electromagnetic wave transmission source (21) emits an electromagnetic wave from among the plurality of electromagnetic wave transmission sources (21), and the electromagnetic wave is received by the corresponding receiving device (30). Therefore, it is possible to easily and reliably notify the monitor of the position of the abnormal part and the physical data of various components.

(Claim 2)
The invention according to claim 2 relates to a state monitoring device (20) of a solar power generation system for monitoring the state of the solar power generation system (10), and a solar panel (in which a plurality of solar cells (13) are arranged) 12), a solar cell module (11) in which the plurality of solar cell panels (12) are arranged, a power conditioner (15) that converts DC power obtained by the solar cell module (11) into AC power, etc. The various components are provided.
Further, a plurality of visible light sources (21) for turning on or off visible light by detecting abnormalities of the various components, and the plurality of visible light sources installed at a location away from the solar cell module (11) The receiver (30) that receives visible light of (21), and the abnormal part identification device that outputs and displays the abnormal part by the visible light of the plurality of visible light sources (21) detected by the receiver (30). (40).

(Glossary)
“Visible light” is a wave of light waves in electromagnetic waves, and it has good straightness and can emit light at a specific wavelength. Therefore, visible light communication is performed using the specific wavelength and straightness. Can do. In addition, in the visible light communication, physical quantities such as the temperature, voltage, and current of the solar battery cell (13) can be transmitted as in the case of wireless communication. Visible light communication can also handle complex information by modulating it.
The “visible light source” is a light source that emits the above “visible light”. Generally, an LED (light emitting diode) is often adopted because of low power consumption.
“Lighting or turning off” is intended to enable selection of whether a pattern that is turned on in an abnormality or a pattern that is turned off in the case of an abnormality is easy to find or whether the running cost is low. It should be noted that “lighting or turning off” includes periodic blinking.

(Function)
When an abnormality is detected in various components such as the solar cell (13) and the power conditioner (15) (PCS) constituting the solar cell panel (12) of the solar cell module (11) installed in a vast area, The corresponding visible light source (21) emits visible light from among the plurality of visible light sources (21), and the corresponding receiving device (30) receives the visible light. Therefore, it is possible to easily and reliably notify the monitor of the position of the abnormal part and the physical data of various components.
Furthermore, since the person in charge of maintenance who rushed to the work site is emitting visible light, he can immediately know where the abnormal part is.

(Claim 3)
The invention according to claim 3 limits the state monitoring device (20) of the solar power generation system according to claim 1 or 2.
That is, the various components are provided for each unit unit composed of a plurality of solar cells.
By providing the constituent elements for each unit, it is intended to make it easier to find a place where an abnormality has occurred.

(Function)
The location where an abnormality has occurred may be replaced for each unit. That is, it is possible to quickly remove an abnormal portion and shorten the time until it is restored.

(Claim 4)
The invention according to claim 4 limits the state monitoring device (20) of the solar power generation system according to claim 3.
That is, the unit unit is composed of a solar cell panel (12) unit or several solar cell panels (12).

(Function)
When the unit unit is a solar cell panel (12), it is easy to replace with a new solar cell panel (12) because it is in the form of a panel. At this time, if the number of solar battery cells (13) constituting the solar battery panel (12) is small, the amount to be exchanged becomes small and the cost becomes low.

(Claim 5)
The invention according to claim 5 limits the state monitoring device (20) of the solar power generation system according to claim 2, claim 3 or claim 4.
That is, the visible light source (21) turns on or off the visible light when detecting an abnormality of the adjacent solar battery cell (13) among the plurality of solar battery cells (13) constituting one unit. The structure is characterized in that one visible light source (21) is provided for each unit.

(Function)
When one solar battery cell (13) is abnormal in one unit, the total generated power in one unit is lower than the abnormality determination reference value, so that abnormality is detected. The abnormality determination reference value is a set value that is abnormal with respect to a numerical value that includes the initial power generation capability of the solar battery cell (13) and a predicted value based on experience values.

(Claim 6)
The invention according to claim 6 limits the state monitoring device (20) of the solar power generation system according to any one of claims 2, 3, 4 or 5.
That is, the receiving device (30) is one or a plurality of light receiving elements (32) that receive visible light emitted from the plurality of visible light sources (21) corresponding to each visible light source (21). The abnormal location identification device (40) is a control device (42) that determines and displays an abnormal location by the visible light of the visible light source (21) from the light receiving state of the one or more light receiving elements (32). It is characterized by being.

(Function)
Since one or more light receiving elements (32) receive light corresponding to each of the plurality of visible light sources (21), each visible light source (21) that is turned on or off upon detecting an abnormality is controlled by the control device (42). It is easily identified and displayed on a display device or the like.

(Claim 7)
The invention according to claim 7 limits the state monitoring device (20) of the solar power generation system according to claim 2, claim 3, claim 4 or claim 5.
That is, the receiving device (30) is an imaging means (51) for imaging visible light emitted from the plurality of visible light sources (21), and the abnormal part identification device (40) is the imaging means (51 The control device (42) is configured to analyze the image picked up in (4) and determine and display an abnormal location by visible light from the plurality of visible light sources (21).

(Function)
The imaging means (51) zooms to capture the entire photovoltaic power generation system (10), images the visible light emitted from the visible light source (21), and analyzes the image with the control device (42). Then, the entire fault occurrence state of the photovoltaic power generation system (10) is diagnosed by visible light.

(Claim 8)
The invention according to claim 8 limits the state monitoring device (20) of the solar power generation system according to claim 2, claim 3, claim 4 or claim 5.
That is, the receiving device (30) and the abnormal part identifying device (40) are characterized in that they are portable information terminals (for example, cellular phones 44) equipped with a visible light communication program.

(Function)
By installing the visible light communication program on the portable information terminal, the supervisor can be able to receive visible light emitted from the plurality of electromagnetic wave sources (21) of the solar cell module (11). The status of the battery module (11) can be confirmed reliably.

(Claim 9)
The invention described in claim 9 limits the state monitoring device (20) of the solar power generation system described in claim 2, 3, 4 or 5.
That is, the receiving device (30) arranges the light receiving elements (32) at positions corresponding to the visible light sources (21), and sets the light receiving states of the light receiving elements (32). By providing a display light source (41) for display, the light receiving panel (31) visually displays an abnormal portion of the corresponding plurality of visible light sources (21).

(Function)
The monitor can easily and reliably monitor the state of the solar cell module (11) by viewing the light receiving panel (31).

(Claim 10)
The invention according to claim 10 is a solar battery panel in which a plurality of solar battery cells are arranged, a solar battery module in which the plurality of solar battery panels are arranged, and direct-current power obtained by the solar battery module into AC power. A photovoltaic power generation system that monitors the state of a photovoltaic power generation system that includes various components such as a power conditioner to be converted, and a plurality of electromagnetic wave transmission sources that detect electromagnetic waves and detect abnormalities in the various components. It relates to a state monitoring device program.
The program identifies a reception procedure for receiving information indicating that the electromagnetic waves of the plurality of electromagnetic wave sources have been received at a location away from the solar cell module, and an abnormal location based on the information received in the reception procedure. A computer program that causes a computer to execute an arithmetic procedure and an abnormal part output procedure for outputting information on an abnormal part identified by the arithmetic procedure.

  Since the calculation procedure calculates information related to the abnormal part, the correspondence table between the various components and the information received by the reception procedure is stored in advance in the storage means of the computer or in the device storing the correspondence table. The computer accesses.

(Claim 11)
The invention described in claim 11 is a solar battery panel in which a plurality of solar cells are arrayed, a solar battery module in which the solar battery panels are arrayed, and direct-current power obtained by the solar battery module as AC power. Sunlight for monitoring the state of a photovoltaic power generation system comprising various components such as a power conditioner to be converted and a plurality of visible light sources that detect or detect abnormalities in the various components and turn on or off visible light The present invention relates to a power generation system state monitoring apparatus program.
The program recognizes an abnormal location based on a reception procedure for receiving information indicating that the visible light of the plurality of visible light sources has been received at a location away from the solar cell module, and information received in the reception procedure. A computer program that causes a computer to execute an arithmetic procedure to perform and an abnormal part output procedure to output information on the abnormal part identified in the arithmetic procedure.

According to invention of Claim 1-9, abnormality of various components, such as a photovoltaic cell and a power conditioner (PCS) which comprise the photovoltaic panel of the photovoltaic module installed in the vast area, is detected. Can inform the observer easily and reliably.
The computer program according to the invention described in claim 10 and claim 11 is installed and used in a computer that controls the state monitoring device of the solar power generation system, thereby automating the state monitoring of the solar power generation system. Contribute.

Embodiments of the present invention will be described below with reference to the drawings.
Referring to FIG. 1, a photovoltaic power generation system 10 according to the present embodiment includes a solar battery panel 12 in which a plurality of solar battery cells 13 are arranged, a solar battery module 11 in which the solar battery panels 12 are arranged, It is composed of a power conditioner 15 (PCS) that converts DC power obtained from the solar cell module 11 into AC power, and various other components such as a power receiving / transforming facility 16, a power measuring device 17, and a display device 18. .

  The necessary power is transmitted from the power receiving / transforming facility 16. In the photovoltaic power generation system 10, at least one solar cell module 11 is arranged.

  Moreover, the solar power generation system state monitoring device 20 according to the present embodiment includes a unit unit 14 composed of several solar cells 13 in the solar cell module 11, and each unit unit 14 is abnormal. For example, an LED 21 is provided as a visible light source for detecting or detecting visible light and turning on or off the visible light. For example, as schematically shown in FIG. 2, one unit unit 14 is constituted by four solar cells 13, and the four solar cells 13 are electrically connected. The generated power obtained for each unit unit 14 is added up.

  The above-mentioned solar battery cell 13 has a problem in that the generated power varies depending on deterioration over time, change in installation environment, change in outside air temperature, and daily solar radiation. Is an abnormality due to deterioration over time or some cause. This abnormal solar cell 13 or the location of one unit unit 14 including the abnormal solar cell 13 is found, and the solar cell 13 of one unit unit 14 is replaced with a new normal solar cell 13. There is a need.

  The generated power based on the change in the installation environment, the change in the outside air temperature, and the amount of solar radiation per day is measured in advance as an empirical value, so that the generated power obtained according to the situation on the day can be predicted. On the other hand, the initial power generation capacity of the solar cell 13 itself can be understood by measuring in advance. Therefore, an abnormality determination reference value that is abnormal with respect to a numerical value that includes the initial power generation capability of the solar battery cell 13 and a predicted value based on experience values is set.

  If even one solar cell 13 is abnormal in one unit unit 14, for example, the total generated power of four solar cells 13 in one unit unit 14 is lower than a preset abnormality determination reference value. Abnormalities can be detected.

  A solar cell is a kind of photodiode, which is a basic element of a light receiving element. For example, it is combined with an amplifier circuit to become a phototransistor, and combined with an integrated circuit to become a photo IC. is there. In addition, since the ratio of the amount of light and the amount of current generated is stable, the photodiode can be used as a light receiving element of an optical sensor that requires accuracy, that is, a combination of light reception, determination, and output functions. .

  Utilizing the above-described functions, for example, one LED 21 is provided for each unit unit 14 composed of several solar cells 13, and as described above, physical quantities such as temperature, voltage, and current are measured, and from these physical quantities The LED 21 can be lit with visible light when a defect (abnormality) is determined. Or, conversely, all the LEDs 21 normally emit visible light, and may be turned off when an abnormality occurs. In other words, the occurrence of abnormality can be displayed for each unit 14 of the solar battery cell 13 by turning on or off the LED 21.

  In the present embodiment, one LED 21 is provided for each unit unit 14 composed of four solar cells 13. However, the solar cell panel 12 composed of a plurality or a smaller number of solar cells 13 may be a unit unit 14 or the solar cell panels 12 may be a unit unit 14. You can also. In any case, one LED 21 is provided for each unit unit 14.

Further, for example, as a receiving device 30 that receives (receives) visible light emitted from all the LEDs 21 installed in the solar cell module 11 as visible light communication at a place away from the solar cell module 11. A light receiving panel 31 is provided. In the light receiving panel 31, a plurality of light receiving elements 32 that respectively receive visible light emitted from the plurality of LEDs 21 are disposed at positions corresponding to the plurality of LEDs 21.
Note that one light receiving element 32 or a plurality of light receiving elements 32 may be provided for one light receiving panel 31.

There is provided an abnormal point identification device 40 that outputs and displays an abnormal point by visible light of the plurality of LEDs 21 detected by the receiving device 30. That is, as the abnormal part identifying device 40, for example, a display LED 41 as a display light source for displaying each light receiving state on each of the plurality of light receiving elements 32 can be provided.
Since the LED 21 as a visible light source has low power consumption, the energy saving effect is high. Further, since the visible light of the LED 21 has good straightness and can emit light at a specific wavelength, the specific wavelength and straightness are used to inform the supervisor by visible light communication. In the visible light communication, data of physical quantities such as the temperature, voltage, and current of the solar battery cell 13 can be transmitted.

  As shown in FIG. 3, the light receiving panel 31 corresponding to the solar cell module 11 of FIG. 1 is provided with identification positions (cell addresses) of positions corresponding to the solar cells 13 in the solar cell module 11. ing. In the present embodiment, the five solar battery panels 12 are respectively identified by (I) to (V) in order, and the solar battery cells 13 of each solar battery panel 12 are denoted by a to h on the horizontal axis. The number of 1-12 is attached | subjected to the vertical axis | shaft. The corresponding positions of each solar battery cell 13 and the light receiving panel 31 in the solar battery module 11 are the same identification position (cell address). Therefore, the identification position (cell address) of each photovoltaic cell 13 is identified, for example, as “a-1 of (I)”, “c-5 of (IV)”.

  In this embodiment, since one LED 21 is provided for each unit unit 14 composed of four solar cells 13, the light receiving panel 31 corresponds to an identification position (cell address) corresponding to each LED 21. A light receiving element 32 and a display LED 41 for displaying the light receiving state are provided. Note that the wavelengths of visible light of the LEDs 21 are different from each other, and each light receiving element 32 is configured to receive only visible light of the corresponding LED 21.

  Therefore, when one LED 21 of the solar cell module 11 emits light indicating abnormality, the visible light of the LED 21 goes straight and is received by the corresponding light receiving element 32 provided in the light receiving panel 31. Then, the display LED 41 connected to the light receiving element 32 emits light. As a result, the supervisor can easily and reliably identify the identification position (cell address) of one group of solar cells 13 that has actually become abnormal by confirming the position of the display LED 41 that has emitted light from the light receiving panel 31. I can know. As a result, the abnormal solar battery cell 13 can be easily and reliably replaced with a new solar battery cell 13.

  For example, when the LED 21 at the identification position “e-9 of (I)” emits light, the light receiving element 32 at the identification position “e-9 of (I)” of the light receiving panel 31 receives light and displays the position. LED 41 emits light. The observer who visually confirmed this was a group of four solar cells 13 of “e-9”, “e-10”, “f-9”, and “f-10” of the solar panel 12 in (I). It is possible to easily and quickly identify that an abnormality has occurred. As a result, the four solar cells 13 in the group can be replaced with four new solar cells 13.

  In addition, as one example of the abnormal part identification device 40, the plurality of light receiving elements 32 of the light receiving panel 31 in the above-described state monitoring device 20 of the photovoltaic power generation system are connected to, for example, a host computer 42 as a control device The host computer 42 can determine the position of the LED 21 indicating the abnormality of the solar cell module 11 from the light receiving state of each light receiving element 32. The data determined by the host computer 42 can be displayed on a display device such as the monitor 43 or can be transferred to the monitor's mobile phone 44 for notification.

In this case, the display LED 41 connected to the light receiving element 32 may not be provided. Alternatively, a display LED 41 may be provided so that it can be confirmed visually or by the host computer 42.
Moreover, as other embodiment, the some light receiving element 32 in the state monitoring apparatus 20 of the solar power generation system mentioned above light-receives each correspondingly receives the visible light emitted from each LED21 of the solar cell module 11. Since it is the element 32, the light receiving panel 31 may not be disposed at a position corresponding to each of the LEDs 21 but may be provided in a single place. However, in this case, since it cannot be visually monitored, the plurality of light receiving elements 32 are connected to a host computer 42 as a control device, for example, so that the display device such as the monitor 43 or the monitor's It can be displayed on the mobile phone 44.

  Next, the state monitoring device 50 of the photovoltaic power generation system according to another embodiment will be described. In addition, the member similar to the state monitoring apparatus 20 of the solar power generation system mentioned above is attached | subjected with the same code | symbol, and only a different part is demonstrated.

As shown in FIG. 4, the receiving device 30 uses, for example, a monitoring CCD camera 51 as imaging means for imaging visible light emitted from the plurality of LEDs 21 of the solar cell module 11. The monitoring CCD camera 51 performs zoom auto so as to capture the entire photovoltaic power generation system 10 and diagnoses the occurrence of the entire malfunction of the photovoltaic power generation system 10 with visible light. Further, as the abnormal part identifying device 40, an image captured by the monitoring CCD camera 51 is analyzed by the image processing device 52, and the abnormal part is determined from the visible light of the plurality of LEDs 21 by the host computer 42 as a control device, for example. For example, it can be displayed on a display device such as the monitor 43 or can be transferred to the mobile phone 44 of the supervisor for notification.
Note that the above imaging unit may be a digital camera or an imaging unit of another embodiment.

Further, in the above-described solar power generation system state monitoring device 50, an imaging unit is used as the receiving device 30, but instead of the imaging unit, visible light having the functions of the receiving device 30 and the abnormal part identifying device 40 is combined. It may be a mobile phone equipped with a communication program. In this case, if the monitor is within a range in which visible light emitted from the plurality of electromagnetic wave transmission sources 21 of the solar cell module 11 can be received, the situation of the solar cell module 11 can be surely confirmed on the spot.
Moreover, although embodiment mentioned above demonstrated the case where the abnormality of the photovoltaic cell 13 in the solar cell module 11 was detected, various components, such as the power conditioner 15 (PCS), the receiving / transforming equipment 16, and the electric power measurement apparatus 17, are described. The present invention can also be applied when detecting an abnormality.

  From the above, in the state monitoring devices 20 and 50 of the photovoltaic power generation system of the present invention, the solar cells 13 and the power conditioner 15 (which constitute the solar cell panel 12 of the solar cell module 11 installed in a large area) PCS) and other components are measured for voltage / current, etc., and their faults (abnormalities) are found and the fault location, voltage / current, etc. are measured and communicated to the observer easily and reliably via visible light communication. be able to.

  Furthermore, these data can be diagnosed by the host computer 42 as the control device or the receiving device of the terminal of the mobile phone 44. Moreover, physical quantities such as the temperature, voltage, and current of the solar battery cell 13 are transmitted by the visible light communication described above, and data of these physical quantities are collected at the terminal of the mobile phone 44 as the receiving device 30 and correspond to each LED 21. The light receiving element 32 receives the signal. The received information can be collected in the host computer 42 or the mobile phone 44 terminal. As a result, the inspection result information of the photovoltaic power generation system 10 can be efficiently collected.

  In addition, in the state monitoring apparatuses 20 and 50 of the photovoltaic power generation system of the above-described embodiment, visible light communication transmitted from a visible light source is used, but instead of the solar cell module 11 using other electromagnetic waves. In order to notify the abnormality of various components, a communication means for transmitting data can be used.

"Electromagnetic waves" are waves (waves) formed by changes in the electric and magnetic fields of the space, including radio waves (low frequency, super long wave, long wave, medium wave, short wave, ultra short wave, microwave, etc.) ) And light waves (infrared rays, visible rays, ultraviolet rays, etc.).
Alternatively, instead of visible light communication, a predetermined sound wave output from the speaker is used for communication using a microphone that catches sound waves such as a vibrator that notifies abnormality or a speaker that outputs sound, or a predetermined sound wave is output. The fact that the sound is collected by the microphone can also be communicated.

  The present invention has applicability in a photovoltaic power generation system manufacturing industry, a photovoltaic power generation system maintenance industry, a solar power generation system software development industry, and the like.

It is a perspective view which shows the state monitoring apparatus of the solar energy power generation system which concerns on 1st embodiment. FIG. 4 is a plan view showing a unit unit composed of four solar cells 13. It is a top view which shows the light reception panel of FIG. It is a perspective view which shows the state monitoring apparatus of the solar energy power generation system which concerns on 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Photovoltaic power generation system 11 Solar cell module 12 Solar cell panel 13 Solar cell 14 Unit unit 15 Power conditioner (PCS)
16 Power receiving / transforming equipment 17 Electric power measurement device 18 Display device 20 Status monitoring device 21 of photovoltaic power generation system LED (visible light source, electromagnetic wave source)
Reference Signs List 30 Receiving Device 31 Light Receiving Panel 32 Light Receiving Element 40 Abnormal Location Identification Device 41 Display LED (Light Source for Display) 42 Host Computer (Control Device)
43 Monitor (Display Device) 44 Cell Phone 50 Solar Power Generation System Status Monitoring Device 51 Monitoring CCD Camera (Imaging Means)
52 Image processing apparatus

Claims (11)

Various configurations such as a solar battery panel in which a plurality of solar cells are arranged, a solar battery module in which the solar battery panels are arranged, and a power conditioner that converts DC power obtained by the solar battery module into AC power In a solar power generation system state monitoring device for monitoring the state of a solar power generation system comprising elements,
A plurality of electromagnetic wave transmission sources that detect electromagnetic waves by detecting abnormalities in the various components, a receiving device that is installed at a location away from the solar cell module and receives the electromagnetic waves of the plurality of electromagnetic wave transmission sources, and the reception thereof A state monitoring device for a solar power generation system, comprising: an abnormal point identification device that outputs and displays an abnormal point in order to identify an abnormal point based on electromagnetic waves from a plurality of electromagnetic wave transmission sources received by the device. Various configurations such as a solar battery panel in which a plurality of solar cells are arranged, a solar battery module in which the solar battery panels are arranged, and a power conditioner that converts DC power obtained by the solar battery module into AC power In a solar power generation system state monitoring device for monitoring the state of a solar power generation system comprising elements,
A plurality of visible light sources that detect an abnormality of the various components to turn on or off visible light, and a receiver that receives the visible light of the plurality of visible light sources installed at a location away from the solar cell module And an abnormal part identification device that outputs and displays the abnormal part in order to identify the abnormal part with the visible light of the plurality of visible light sources received by the receiver.   The state monitoring device for a photovoltaic power generation system according to claim 1 or 2, wherein the various components are provided for each unit unit including a plurality of solar cells.   The state monitoring device for a photovoltaic power generation system according to claim 3, wherein the unit unit is composed of a solar cell panel unit or several solar cell panels.   The visible light source is configured to turn on or off visible light when an abnormality is detected in an adjacent solar battery cell among a plurality of solar battery cells constituting one unit unit. The state monitoring device for a photovoltaic power generation system according to any one of claims 2, 3 and 4, wherein two visible light sources are provided.   The receiving device is one or a plurality of light receiving elements that receive visible light emitted from the plurality of visible light sources corresponding to each visible light source, and the abnormal location identifying device is the one or more light receiving devices. The photovoltaic power generation system according to any one of claims 2, 3, 4 and 5, wherein a control device is configured to determine and display an abnormal location from the light receiving state of the element by visible light of the visible light source. State monitoring device.   The receiving device is an imaging unit that captures visible light emitted from the plurality of visible light sources, and the abnormal part identification device analyzes an image captured by the imaging unit and displays the visible light of the plurality of visible light sources. The state monitoring device for a photovoltaic power generation system according to any one of claims 2, 3, 4, and 5, wherein the control device is configured to determine and display an abnormal portion with light.   The sunlight according to any one of claims 2, 3, 4, and 5, wherein the receiving device and the abnormal part identifying device are portable information terminals equipped with a visible light communication program. Power generation system condition monitoring device.   The receiving device includes a plurality of light receiving elements arranged at positions corresponding to the visible light sources and a display light source for displaying a light receiving state of the light receiving elements. 6. The state monitoring device for a photovoltaic power generation system according to claim 2, which is a light receiving panel that visually displays an abnormal portion of a visible light source. . Various configurations such as a solar battery panel in which a plurality of solar cells are arranged, a solar battery module in which the solar battery panels are arranged, and a power conditioner that converts DC power obtained by the solar battery module into AC power A state monitoring device program for a photovoltaic power generation system that monitors the state of a photovoltaic power generation system including an element and a plurality of electromagnetic wave transmission sources that detect electromagnetic waves and detect an abnormality in each of its components;
The program includes a reception procedure for receiving information indicating that the electromagnetic waves of the plurality of electromagnetic wave sources are received at a location away from the solar cell module;
A calculation procedure for identifying an abnormal location based on information received in the reception procedure,
A computer program for causing a computer to execute an abnormal part output procedure for outputting information on an abnormal part identified by the calculation procedure. Various configurations such as a solar battery panel in which a plurality of solar cells are arranged, a solar battery module in which the solar battery panels are arranged, and a power conditioner that converts DC power obtained by the solar battery module into AC power A state monitoring device program for a photovoltaic power generation system that monitors the state of a photovoltaic power generation system that includes an element and a plurality of visible light sources that turn on or off visible light by detecting abnormalities in the various components. And
The program includes a reception procedure for receiving information indicating that the visible light of the plurality of visible light sources is received at a location away from the solar cell module;
A calculation procedure for identifying an abnormal location based on information received in the reception procedure,
A computer program for causing a computer to execute an abnormal part output procedure for outputting information on an abnormal part identified by the calculation procedure.

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