KR20200099267A - smart solar energy generation system for sending self failure signal - Google Patents

Abstract

According to an embodiment of the present invention, provided is a smart photovoltaic power generation system for sending a failure self-detection signal capable of increasing a system installation effect. The smart photovoltaic power generation system for sending a failure self-detection signal comprises: at least one photovoltaic module generating power using a solar cell; a connection panel merging direct current (DC) power outputted from each solar module and outputting a DC current; an inverter converting the DC power outputted from the connection panel into alternating current (AC) power and supplying the same to a load or a use system; a monitor displaying a failure of the photovoltaic module, the connection panel, and the inverter; and a failure detection unit detecting the failure of each of the photovoltaic module, the connection panel, and the inverter to be displayed on the monitor.

Description

Smart solar energy generation system for sending self failure signal

The present invention relates to a photovoltaic power generation system, a fault self-sensing signal transmitting smart photovoltaic power generation system that detects and transmits a fault by itself.

In general, solar power generation is a power generation system for generating electricity by converting sunlight into electrical energy, and is a power generation system that produces electricity on a large scale using a photovoltaic module in which a plurality of solar cells are arrayed.

Such a solar power generation system includes a plurality of solar modules in which solar cells that generate DC electricity by receiving sunlight from the sun are arrayed, a connection panel connected to collect DC electricity generated from each solar module by unit string, and It consists of a configuration including a power conversion device (PCS: Power Conditioning System) that converts all DC electricity collected in each connection module into AC electricity.

A plurality of photovoltaic modules in which solar cells are arrayed (PV-array) are connected to the connection module in a serial/parallel structure, and direct current electricity is integrated and transmitted to the connection module for each unit string.

Since many of these solar modules are disposed and maintained for a long time while exposed to the external environment, they are greatly affected by environmental changes. Therefore, the more a solar module is arranged in a large amount, the more thorough fault diagnosis and maintenance are required to maintain its efficiency.

Korean Patent Registration 10-0918964

An object of the present invention is to provide a fault self-sensing signal transmitting means that detects and transmits a fault in a solar power generation system.

An embodiment of the present invention is at least one solar module for generating power using a solar cell; A connection panel for merging DC power output from each solar module and outputting a DC current; An inverter converting DC power output from the connection panel into AC power and supplying it to a load or a use system; A monitor that displays the failure of the solar module, the connection panel, and the inverter; And a failure detection unit that detects each failure of the photovoltaic module, the connection panel, and the inverter and displays them on the monitor.

The fault detection unit may include an output amount detection sensor measuring an amount of insolation and an amount of output compared to the amount of insolation; A short-circuit detection sensor for detecting whether there is a short circuit between the solar modules connected to the connection panel; An inverter detection sensor that detects whether AC power converted through the inverter is properly output; And whether a photovoltaic module is broken through the amount of output compared to the amount of insolation detected by the output detection sensor, whether a connection panel and a wiring system are detected through the short circuit detection sensor, and whether the inverter detected through the inverter detection sensor is malfunctioning. It may include a; fault detection module for displaying on the monitor.

The fault detection module, in the case of a fault in a solar module in which the amount of output relative to the insolation is less than a set reference value, a connection panel fault in which a short circuit between solar modules is detected, or an inverter fault in which AC power of the inverter is not output, detects each fault state. It can be displayed on the monitor.

The failure detection module calculates a solar module failure grade indicating a failure state level of the solar module, a connection panel failure grade indicating a failure condition level of the connection panel, and an inverter failure grade indicating the failure condition level of the inverter, respectively, The solar module failure grade, connection panel failure grade, and inverter failure grade may be displayed respectively.

The smart solar power generation system may include a wireless notification processing unit for notifying the failure status of the solar module, the connection panel, and the inverter provided from the failure detection unit to the management app of the manager terminal.

The wireless notification processing unit may notify the failure status to the management app of the administrator terminal only when the solar module failure grade, the connection panel failure grade, and the inverter failure grade are equal to or higher than a predetermined risk grade.

The smart solar power generation system includes a meteorological measurement sensor that detects a weather condition at a point where the solar module is installed, and the wireless notification processing unit includes the solar module failure grade, the connection panel failure grade, and the inverter failure grade In the case of more than this predetermined risk level, the installation location of the solar module and the current weather condition are notified to the management app of the manager terminal, and the received current weather condition is operated by an unmanned aerial vehicle flying over the solar module notified of failure. Can be provided as climate information.

According to an embodiment of the present invention, by detecting an abnormality in a small-scale photovoltaic power generation system for the purpose of home or offset transaction in real time and transmitting it to a specific intermediary device, solar power-introducing customers immediately respond to failure to prevent loss of power generation efficiency and Installation effect can be increased.

1 is a block diagram of a fault self-sensing signal transmission smart solar power generation system according to an embodiment of the present invention.
Figure 2 is an exemplary diagram of a monitor indicating whether there is a failure according to an embodiment of the present invention.
Figure 3 is a configuration diagram of a fault self-detection signal transmission smart solar power generation system for wireless notification to a remote manager terminal according to an embodiment of the present invention.
4 is an exemplary diagram showing a failure state on an administrator terminal according to an embodiment of the present invention.
FIG. 5 is an exemplary illustration of remote photographing by moving a wireless vehicle to a site where a photovoltaic module notified of a failure is installed according to an embodiment of the present invention.

Hereinafter, the advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and is provided to completely inform the scope of the invention to those of ordinary skill in the art to which the present invention belongs. As such, the invention is only defined by the scope of the claims. In addition, when it is determined that related well-known technologies or the like may obscure the subject matter of the present invention in describing the present invention, detailed descriptions thereof will be omitted.

1 is a block diagram of a fault self-sensing signal transmission smart solar power generation system according to an embodiment of the present invention, and Figure 2 is an exemplary diagram of a monitor indicating whether a fault has occurred according to an embodiment of the present invention.

The present invention is a new and renewable energy convergence system to prevent loss of power generation efficiency and increase the system installation effect by responding to failures by solar-powered customers immediately. It detects whether it is in real time and transmits it to a specific medium.

To this end, the fault self-sensing signal transmission smart photovoltaic power generation system of the present invention includes at least one photovoltaic module 100 for generating power using a solar cell, and each photovoltaic module 100, as shown in FIG. ), a connection panel 200 that merges the DC power output from the DC power and outputs it as a DC current, and an inverter 300 that converts the DC power output from the connection panel 200 into AC power and supplies it to a load or a use system. , The photovoltaic module 100, the connection panel 200, the monitor 500 that displays the failure of the inverter, and the photovoltaic module 100, the connection panel 200, and the inverter 300, respectively It may include a failure detection unit 400 to detect and display on the monitor 500. It will be described in detail below.

The photovoltaic module 100 is at least one or more modules that generate electric power using solar cells. The solar module 100 is configured such that a plurality of solar cells are arranged in a rectangular or curved frame, and generated power is generated by using each of the solar cells. That is, the photovoltaic module 100 is a plurality of modules in which solar cells that receive sunlight and generate direct current electricity are arrayed, and a plurality of photovoltaic modules 100 in which solar cells are arrayed (PV-array) (Photovoltaic Module) is connected to the connection module in a series/parallel structure, and integrates and transmits DC electricity for each unit string to the connection module. Since the plurality of solar modules 100 are disposed and maintained for a long time while being exposed to the external environment, they are greatly affected by environmental changes.

The connection panel 200 performs a function of merging DC power output from each of the solar modules 100 and outputting a DC current. That is, the direct current electricity generated by each solar module 100 is connected to be collected for each unit string.

The inverter 300 converts DC power output from the connection panel 200 into AC power and supplies it to a load or a use system. That is, it is configured to include a power conversion device (PCS: Power Conditioning System) that converts all DC electricity collected in each connection module into AC electricity.

The monitor 500 is a display device that displays whether the photovoltaic module 100, the connection panel 200, and the inverter have failed. Various display devices such as LCD panels, LED panels, OLED panels, and touch screen panels can be used.

The failure detection unit 400 detects the failure of the solar module 100, the connection panel 200, and the inverter 300, respectively, and displays them on the monitor 500. That is, as shown in FIG. 2, whether the photovoltaic module 100 has failed, whether the connection panel 200 has failed, and whether the inverter 300 has failed is detected and displayed on the monitor 500. Therefore, the administrator can check the monitor 500 and immediately respond to the failure, and as a result, it is possible to prevent loss of power generation efficiency and increase the system installation effect.

The failure detection unit 400 may include an output amount detection sensor 410, a short circuit detection sensor 420, an inverter detection sensor 430, and a failure detection module 440.

The output amount detection sensor 410 is a sensor that measures the amount of insolation compared to the amount of insolation.

The short-circuit detection sensor 420 is a sensor that detects whether there is a short circuit between the solar modules 100 connected to the connection board 200.

The inverter detection sensor 430 is a sensor that detects whether AC power converted through the inverter 300 is output.

The fault detection module 440 detects whether the solar module has failed, whether the connection panel 200 detected through the short-circuit detection sensor 420 is faulty, and the inverter through the amount of output compared to the amount of insolation detected through the output detection sensor 410 The monitor 500 displays whether or not the inverter 300 has a failure detected through the sensor 430.

That is, the fault detection module 440 is a solar module failure in which the amount of output relative to the amount of irradiation is less than a set reference value, a connection panel failure in which a short circuit between the solar modules 100 is detected, or AC power of the inverter 300 is not output. In the case of an inverter failure, the state of each failure is displayed on the monitor 500.

Further, the failure detection module 440, as shown in Figure 2, the solar module failure rating indicating the failure state level of the solar module 100 and the connection panel failure indicating the failure state level of the connection panel 200 The grade and the inverter failure grade representing the failure state level of the inverter 300 are calculated, respectively, and the solar module failure grade, the connection panel failure grade, and the inverter failure grade are respectively displayed.

Therefore, the more severe the failure, the higher the failure grade, and the manager can check these failure grades and take appropriate countermeasures accordingly.

Further, the failure detection module 440 may store the detected failure status and failure grade in a storage to manage the failure history in history. Therefore, it is possible to provide through the monitor 500 by inquiring whether or not a failure at a time requested by the administrator and a failure grade. For reference, the storage device in which the failure status and failure level are stored is a hard disk drive, a solid state drive, a flash memory, a compact flash card, and an SD card ( Secure Digital Card), SM Card (Smart Media Card), MMC Card (Multi-Media Card), or Memory Stick, etc., as a module capable of input and output of information, and may be provided inside the device or in a separate device. It may be equipped.

On the other hand, the fault self-sensing signal transmission smart photovoltaic power generation system of the present invention can wirelessly transmit the fault state to the remote manager terminal 10 in addition to displaying the fault state on the monitor 500. Furthermore, the administrator can check the status of these faults remotely through the wireless vehicle. It will be described below with reference to FIGS. 3 to 5.

3 is a configuration diagram of a fault self-sensing signal transmission smart photovoltaic power generation system for wirelessly notifying a remote manager terminal according to an embodiment of the present invention, and FIG. 4 is a diagram showing a fault state on the manager terminal according to an embodiment of the present invention. It is an exemplary picture, and FIG. 5 is an exemplary picture in which a wireless vehicle is dispatched to a site where a photovoltaic module notified of a failure is installed according to an embodiment of the present invention and takes a remote picture.

The fault self-sensing signal transmission smart solar power generation system of the present invention includes a wireless notification processing unit 450 to wirelessly transmit a fault condition to the remote manager terminal 10.

The wireless notification processing unit 450 has a function of notifying the failure status of the solar module 100, the connection panel 200, and the inverter 300 provided from the failure detection unit 400 to the management app of the manager terminal 10. Perform.

The wireless notification may be made via a mobile communication network, which is composed of a base transceiver station (BTS), a mobile switching center (MSC), and a home location register (HLR). Data communication can be performed using a mobile communication network. In addition to the base station (BTS), mobile switching center (MSC), and home location register (HLR), additional components such as an access gateway and PDSN (Packet Data Serving Node) that enable transmission and reception of wireless packet data are included. can do.

Accordingly, the wireless notification processing unit 450 is a module that performs a function of communicating through a mobile communication network, and in the case of performing mobile communication such as 3G or 4G, an RF transmitter that up-converts and amplifies the frequency of a wirelessly transmitted signal ( (Not shown) and an RF receiver (not shown) for low-noise amplification of a received radio signal and down-converting a frequency.

For reference, the manager terminal 10 receiving the failure notification may be implemented as a wireless communication terminal such as a smartphone or a tablet, and of course, the terminal to which the present invention is applicable is not limited to the above-described types, and It is natural that all terminals capable of communicating with the device may be included. Here, a smart phone is an intelligent terminal in which a computer support function such as Internet communication and information search is added to a mobile phone, and an app (application) desired by the user can be installed. In addition, unlike existing mobile phones, hundreds of different apps (applications) can be installed, added or deleted as desired by the user, so users can directly create the desired apps (applications), and through various apps (applications). You can implement an interface that suits you.

When the wireless notification processing unit 450 notifies the failure status of the solar module 100, the connection panel 200, and the inverter 300 provided from the failure detection unit 400 to the management app of the manager terminal 10, The management app of the manager terminal 10 displays each of the failure states of the solar module 100, the connection panel 200, and the inverter 300, as shown in FIG. 4. Furthermore, it is possible to display the solar module failure grade, the connection panel failure grade, and the inverter failure grade, respectively.

On the other hand, when the wireless notification processing unit 450 notifies the failure status of the solar module 100, the connection panel 200, and the inverter 300 to the management app of the manager terminal 10, the solar module failure level, It can be implemented to notify the failure status to the management app of the manager terminal 10 only when the connection panel failure grade and the inverter failure grade are higher than a predetermined risk grade. If even a minor failure is notified to a remote manager unconditionally, there is an inefficient problem. Therefore, it is implemented to notify only when the solar module failure grade, connection panel failure grade, and inverter failure grade are higher than the predetermined risk grade.

In particular, the wireless notification processing unit 450, when notifying when such solar module failure grade, connection panel failure grade, and inverter failure grade are higher than a predetermined risk grade, the installation location of the solar module 100 and the current weather condition. To be notified to the management app of the manager terminal 10.

To this end, the solar power generation system includes a meteorological measurement sensor that detects a weather condition at a point where the solar module 100 is installed. Here, the weather condition detection detects temperature, humidity, dryness, wind speed, and climate conditions.

In general, the photovoltaic module 100 is installed on the roof or roof of a high and low building, or a hillside of a hill where the land price is low, and it is not easy for a person to access the hillside. Therefore, the manager who is notified of an emergency situation in which the solar module failure grade, the connection panel failure grade, and the inverter failure grade are higher than the predetermined risk grade, as shown in FIG. 5, the solar module at the site where the failure was reported by unmanned aerial vehicles such as drones. Dispatched to the location (100), it will be possible to take a picture of the site through an unmanned aerial vehicle such as a drone and check it.

When the weather worsens due to the rainy season or typhoon, the solar module 100 installed on the roof of the building or in the hills, etc., is affected by strong winds, rain damage, landslides, etc. , The manager who is notified of the emergency situation in which the solar module failure grade, the connection panel failure grade, and the inverter failure grade are higher than the predetermined risk level, can see the installed physical appearance of the solar module 100 by launching a drone even without direct access to the site. You will be able to respond by first checking.

However, by receiving climate information directly from the wireless notification processing unit 450 at the site whether the weather at the site is suitable to check by flying an unmanned aerial vehicle such as a drone, it is possible to remotely check whether the weather is capable of launching an unmanned aerial vehicle such as a drone. Do. It is difficult to launch an unmanned aerial vehicle in windy, rainy, or snowy weather, and because it is difficult to take a picture and video, it may not be possible to launch an unmanned vehicle such as a drone.

Furthermore, the received current weather conditions are provided as operating climate information to the unmanned aerial vehicle flying over the solar module notified of failure. Accordingly, the unmanned aerial vehicle can adjust appropriate flight control, image capturing aperture depth, or shooting enlargement ratio according to the wind speed of the provided on-site weather conditions.

For reference, the camera mounted on the unmanned aerial vehicle may include a lens assembly, a filter, a photoelectric conversion module, and an analog/digital conversion module. The lens assembly includes a zoom lens, a focus lens and a compensation lens. The focal length of the lens may be moved according to the control of the focus motor MF.

The embodiments in the description of the present invention described above are presented by selecting the most preferable examples to aid the understanding of those skilled in the art from among various possible examples, and the technical idea of the present invention is not necessarily limited or limited only by this embodiment. , Various changes and modifications, and other equivalent embodiments are possible within the scope of the technical spirit of the present invention.

100: solar module
200: connection panel
300: inverter
400: fault detection unit
500: monitor

Claims (7)

At least one solar module for generating electric power using solar cells;
A connection panel for merging DC power output from each solar module and outputting a DC current;
An inverter converting DC power output from the connection panel into AC power and supplying it to a load or a use system;
A monitor that displays the failure of the solar module, the connection panel, and the inverter; And
A failure detection unit for detecting a failure of the photovoltaic module, the connection panel, and the inverter, respectively, and displaying the failure on the monitor;
Fault self-sensing signal transmission smart solar power generation system comprising a.
The method according to claim 1, wherein the failure detection unit,
An output amount detection sensor measuring the amount of insolation to measure the amount of output compared to the amount of insolation;
A short-circuit detection sensor for detecting whether there is a short circuit between the solar modules connected to the connection panel;
An inverter detection sensor that detects whether AC power converted through the inverter is output; And
Display on the monitor whether a photovoltaic module has failed, whether a connection panel has a failure detected through the short circuit detection sensor, and whether an inverter has a failure detected through the inverter detection sensor through the amount of output compared to the amount of insolation detected by the output detection sensor. A fault detection module;
Fault self-sensing signal transmission smart solar power generation system comprising a.
The method according to claim 2, wherein the fault detection module,
In the case of a failure of a solar module whose output relative to the amount of irradiation is less than the set reference value, a connection panel failure in which a short circuit between solar modules is detected, or a failure of an inverter in which AC power from the inverter is not output, a failure to display each failure status on the monitor Self-sensing signal transmission smart solar power system.
The method of claim 3, wherein the failure detection module,
By calculating the solar module failure grade indicating the failure state level of the solar module, the connection panel failure grade indicating the failure condition level of the connection panel, and the inverter failure grade indicating the failure condition level of the inverter, respectively,
A fault self-detection signal transmission smart solar power generation system that displays each of the solar module fault level, connection panel fault level, and inverter fault level.
The method of claim 4, wherein the solar power generation system,
A wireless notification processing unit for notifying the failure status of the solar module, the connection panel, and the inverter provided from the failure detection unit to the management app of the manager terminal;
Fault self-sensing signal transmission smart solar power generation system comprising a.
The method of claim 5, wherein the wireless notification processing unit,
A fault self-sensing signal transmission smart solar power generation system that notifies the fault status to the management app of the manager terminal only when the solar module fault class, the connection panel fault class, and the inverter fault class are higher than a predetermined risk class.
The method of claim 6, wherein the solar power generation system,
Includes; a meteorological measurement sensor for detecting the weather conditions at the point where the solar module is installed,
The wireless notification processing unit, when the solar module failure grade, the connection panel failure grade, and the inverter failure grade are greater than or equal to a predetermined risk grade, notifies the installation location of the solar module and the current weather condition to the management app of the manager terminal, and ,
The received current weather condition is provided as driving climate information to an unmanned aerial vehicle flying over the solar module in which the failure is notified, a fault self-detecting signal transmission smart solar power generation system.

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