KR102542205B1 - Monitoring system for solar power generation facilities - Google Patents

Abstract

The present invention relates to a monitoring system of a solar power generation facility, which can monitor solar power modules of a solar power generation facility having a plurality of solar power modules individually for abnormalities (or failures) even under adverse conditions such as cloudy or overcast days with low solar power generation efficiency, thereby improving the reliability of monitoring the condition of the solar modules, determine that the solar module is in an abnormal condition (or failure) when the plurality of the solar modules are tilted or vibration is detected without damage to the structure fixed to the ground to utilize the same as data for preventing the solar modules from being damaged, and transmit the monitoring information to a manager terminal to allow a manager to check and manage the solar power generation facility rapidly.

Description

Solar power generation facility monitoring system { Monitoring system for solar power generation facilities }

The present invention relates to a monitoring system for photovoltaic power generation facilities, and more particularly, continuously monitors the power generation efficiency of the photovoltaic power generation facilities as well as monitoring the deformation or damage of the photovoltaic power generation facilities due to external forces such as strong winds or gusts of wind. It relates to a solar power plant monitoring system that does.

In general, photovoltaic power generation converts light energy from sunlight into electrical energy by a solar cell composed of P-type and N-type semiconductors, and then produces electricity at a desired voltage by a storage battery and a power converter.

The solar cell is usually composed of a solar module by arranging solar cells (the smallest unit that generates electricity) on a plane, and connecting a plurality of these solar modules in series or parallel again to generate solar energy. After forming into a solar array, it is installed on the ground to collect sunlight.

In the case of a silicon solar cell, which is the most widely used among photovoltaic modules, an output reduction of 0.5% per 1°C occurs when the temperature of the photovoltaic module rises. According to these characteristics, the output of solar power records the highest in spring and autumn, not in summer when the sun is the longest. This temperature rise is a major cause of lowering the generation efficiency of photovoltaic power generation.

Therefore, it is necessary to continuously monitor the power generation efficiency of solar power generation facilities as well as the status of solar power generation facilities, that is, failure or damage of solar modules or solar arrays, to promptly respond to abnormalities. .

As prior art related to a method for periodically monitoring the photovoltaic power generation efficiency, failure or damage state of such photovoltaic power generation facilities, Patent Publication No. 10-2022-0116769 (Reference 1), Patent Registration No. 10-1409825 ( Reference 2) has been suggested.

Reference 1 relates to a solar power plant monitoring system and method, and the photovoltaic power plant monitoring system includes a solar cell array including a plurality of solar cells; a connecting board for collecting and outputting DC current generated from the solar cell array; an inverter that converts the direct current transmitted through the connection board into alternating current and supplies it to a power receiving place; a contamination detection sensor unit detecting whether or not the solar cell array is contaminated; and a monitoring unit connected to the connection panel, the inverter, and the pollution detection sensor unit through a wired or wireless network to monitor a solar power generation state and to control operations of the connection panel, the inverter, and the pollution detection sensor unit. The monitoring unit may determine a polluted solar cell based on data received from the contamination detection sensor unit.

However, when the contamination detection sensor unit of the system proposed in Reference 1 measures the generated power of the plurality of solar cells of the solar cell array, and the value of the measured generated power is equal to or less than a preset reference ratio compared to the standard generated power standard. It is judged that the corresponding solar cell is polluted, and if dust is accumulated, the solar power generation efficiency is low and the cell can be judged to be polluted. Even if there is no solar power generation efficiency, if the measured generated power is less than a preset standard rate, it may be mistakenly determined to be contamination of the solar cell, so there is concern about the reliability of the system.

In addition, Reference 2 relates to a solar power facility structure protection monitoring device using a strain gauge, a fixed structure supporting modules of a photovoltaic power plant and consisting of a plurality of pillars; A strain gauge unit installed one by one on two to four pillars located at corners of the fixed structure and detecting deformation caused by wind pressure or load; a gauge signal unit receiving a signal from the strain gauge unit and transmitting deformation information of the fixed structure to a monitoring unit; and a monitoring unit receiving a signal from the gauge signal unit and displaying deformation information of the fixed structure.

However, the solar power plant structure protection monitoring device proposed in Reference 2 is equipped with strain gauges on 2 to 4 pillars located at the corners of a fixed structure composed of a plurality of pillars supporting modules of the photovoltaic power plant. It detects deformation. When a strong wind blows and the module of the photovoltaic power generation facility is separated from the column or only the module of the power generation facility is damaged and the column supporting the module of the photovoltaic power generation facility does not deform, structural deformation is detected. It is impossible to detect and therefore it is impossible to predict the damage of the solar power plant module.

Therefore, the configuration of References 1 and 2 has limitations in monitoring the exact status of the Maeyang photovoltaic power generation facility in which photovoltaic power generation takes place, so it is necessary to increase the reliability of monitoring through supplementation thereof.

Reference 1: Patent Publication No. 10-2022-0116769 Reference 2: Registered Patent No. 10-1409825

Therefore, as an object of the present invention to solve these problems, the present invention monitors the power generation efficiency of the photovoltaic power generation facility as well as monitoring the deformation or damage of the photovoltaic power generation facility due to external forces such as strong winds or gusts or collisions of wild animals. Its purpose is to provide a power plant monitoring system.

In particular, the present invention detects the individual generated power values produced by a plurality of photovoltaic modules in which photovoltaic power generation is performed, calculates the average power value of the individual generated power values, and calculates the efficiency of the individual generated power values with respect to the average power value as the standard efficiency. Its purpose is to provide a photovoltaic power generation facility monitoring system that determines that the photovoltaic module is abnormal (or failure) if it is less than that.

In addition, in the present invention, when a plurality of photovoltaic modules fixed to a structure fixed to the ground are separated or damaged by an external force such as strong wind or gust or collision of wild animals, and the photovoltaic module is tilted, an abnormality of the photovoltaic module or photovoltaic array Its purpose is to provide a solar power plant monitoring system that determines (or failure).

The present invention to solve such a technical problem;

A module power measurement means for detecting individual generated power values output from a plurality of photovoltaic modules constituting a solar power generation facility, and an average power value of the individual generated power values measured by the module power measurement means, and the average power If the generation efficiency of the individual generated power value for the value is less than the reference efficiency, it is determined that the solar module is in an abnormal state, and a controller is configured to generate monitoring information including the abnormal state of the solar module. A facility monitoring system is provided.

At this time, the controller stores the individual generated power values input from the plurality of module power measurement means in a memory, calculates an average power value of the individual generated power values, and divides the individual generated power value by the calculated average power value to determine the individual generation efficiency. Calculate, and if the individual power generation efficiency is less than the standard efficiency, it is characterized in that the monitoring information is generated by determining that the photovoltaic module is in an abnormal state.

In addition, the controller is characterized in that if the individual generated power value is not periodically input from the plurality of module power measurement means or is not input during a set period, it determines that the solar module is in an abnormal state and generates monitoring information.

And when the controller generates monitoring information including an abnormal state of the photovoltaic module, it is characterized in that it displays the status display unit, outputs a warning sound through the audio output unit, and transmits the monitoring information to the manager terminal through the communication unit.

In addition, the controller may generate monitoring information by determining that the solar module is in an abnormal state when a tilt signal is input from a tilt sensor installed for each photovoltaic module.

In addition, the controller calculates the vibration intensity when a vibration signal is input from the vibration sensing means installed for each solar module, and determines that the solar module is in an abnormal state when the vibration intensity exceeds the set intensity and continues for a minimum set time Characterized in generating monitoring information.

According to the present invention, the photovoltaic modules of a photovoltaic power generation facility equipped with a plurality of photovoltaic modules can be individually monitored for abnormal (or faulty) conditions even in adverse conditions such as cloudy days or cloudy days with low photovoltaic power generation efficiency. Therefore, there is an effect of increasing the reliability of the condition monitoring of the solar module.

In addition, according to the present invention, even when the photovoltaic module is normally generated and the structure fixed to the ground is not damaged, the plurality of photovoltaic modules are tilted or vibrated by external forces such as strong wind, gust of wind, or collision of wild animals. When this is detected, it is judged as an abnormal (or failure) state of the solar module, and can be used as data capable of preventing damage to the solar module in advance.

In addition, according to the present invention, when the state of the photovoltaic module is monitored and determined to be in an abnormal (or faulty) state, monitoring information including the abnormal state of a specific photovoltaic module is generated and transmitted to the manager terminal, thereby providing the manager of the photovoltaic power generation facility. It also has the advantage of being able to quickly check and manage.

1 is a perspective view showing an example of a solar power generation facility to which a solar power generation facility monitoring system according to an embodiment of the present invention is applied.
2 is a side view of a solar power generation facility to which a solar power generation facility monitoring system according to an embodiment of the present invention is applied.
3 is a connection configuration diagram of a solar power plant monitoring system according to an embodiment of the present invention.
4 is a detailed control configuration diagram of a solar power plant monitoring system according to an embodiment of the present invention.

Hereinafter, the features of the photovoltaic power generation facility monitoring system according to the present invention will be understood by the embodiments described in detail with reference to the accompanying drawings.

Prior to this, the terms or words used in this specification and claims should not be construed as being limited to the usual or dictionary meaning, and the inventor appropriately uses the concept of the term in order to explain his/her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so at the time of this application, they can be replaced. It should be understood that there may be many equivalents and variations.

1 to 4, the photovoltaic facility monitoring system according to an embodiment of the present invention is a plurality of photovoltaic modules 10 constituting a photovoltaic facility 1 or individual products produced in a photovoltaic array. Detecting the generated power values to monitor the power generation efficiency of the photovoltaic power generation facility 1, and monitoring the deformation or damage of the photovoltaic power generation facility 1 due to external forces such as strong winds, gusts, or collisions of wild animals It is a system.

The photovoltaic power generation facility monitoring system of the present invention described below is based on detecting individual power generation values for each photovoltaic module 10 of the photovoltaic power generation facility 1, and the power generation efficiency and Only monitoring of deformation or breakage due to external force is described.

However, the present invention is not limited thereto, and it is also possible to monitor power generation efficiency of individual solar arrays and deformation or damage due to external force based on detecting individual generated power values in units of solar arrays. For example, in the case of a small-scale photovoltaic power generation facility, monitoring may be performed in units of photovoltaic modules 10, and in the case of a large-scale photovoltaic power generation facility, monitoring may be performed in units of a photovoltaic array. Therefore, even if the system of the present invention is described below for monitoring in units of solar modules 10 (or referred to as 'solar panels'), monitoring in units of solar arrays also falls within the scope of the present invention.

On the other hand, the photovoltaic power generation facility 1 includes a plurality of photovoltaic modules 10, an inverter 20 that converts DC power produced through the photovoltaic modules 10 into AC power, and the photovoltaic module ( 10), a monitoring system for diagnosing failures and abnormalities of the inverter 20, and the like. In this case, the plurality of photovoltaic modules 12 may be installed in a structure of a photovoltaic array connected in series or in parallel.

Of course, the photovoltaic power generation facility 1 includes a large-capacity energy storage device (ESS) 30 for charging the DC power produced by the solar module 12, a watt-hour meter for monitoring the amount of power, and a connection box for various power transmission. A wire or the like may optionally be further included.

It is preferable to install a fence 2 around such a photovoltaic power generation facility 1 to prevent unauthorized intrusion from the outside and unauthorized damage or taking out of various facilities. In particular, the fence 2 is preferably installed to protect all facilities from external intrusion, but at least surrounds and protects the surroundings of the solar module 10, which is vulnerable to external force, at regular intervals.

The solar power generation facility monitoring system 100 of the present invention for monitoring the state of the solar power generation facility 1 as described above is for monitoring the state of the photovoltaic power generation facility 1, and the photovoltaic power generation facility 1 A module power measuring means 110 for detecting individual generated power values output from a plurality of photovoltaic modules 10 constituting ), and an average power value of the individual generated power values measured by the module power measuring means 110 Calculate and if the generation efficiency of the individual generated power value for the average power value is less than the reference efficiency, it is determined that the photovoltaic module 10 is in an abnormal (or failure) state, and the monitoring information including the abnormal (or failure) state It includes a controller 120 that generates.

In addition, the solar power plant monitoring system 100 of the present invention further includes a tilt detection means 130 for detecting the degree of inclination of the solar module 10, and the tilt detection means 130 detects the tilt signal. When input to the controller 120, the controller 120 determines that the photovoltaic module 10 is in an abnormal (or failure) state and accordingly generates monitoring information including the abnormal (or failure) state.

On the other hand, the solar power plant monitoring system of the present invention further includes a status display unit 140 that is controlled by the controller 120 and displays monitoring information about the abnormal (or failure) state of the solar module 10, A communication unit 150 is further provided to transmit monitoring information to the manager terminal 200 when an error (or failure) of the solar module 10 occurs.

Hereinafter, the configuration of each part of the system for monitoring the state of the photovoltaic power generation facility according to the present invention will be described in more detail.

First, the solar module 10 has a structure in which solar cells are arranged on a plane, and a plurality of solar modules 10 are connected in series or parallel to form a solar array. The plurality is installed on the ground or a building. Of course, it is preferable that the photovoltaic module 10 maintains a supported (or fixed) state on a structure 11 such as a support for fixing to the ground or the like.

On the other hand, a plurality of photovoltaic modules 10 are installed at regular intervals in the photovoltaic power generation facility 1, and a module power measuring means 110 is provided in the photovoltaic modules 10, so that the photovoltaic modules 10 ) to detect individual generated power values. At this time, the module power measuring means 110 may be composed of an ammeter, a voltmeter or a wattmeter. Of course, the module power measuring means 110 may be composed of a digital ammeter, a voltmeter, or a power meter to reduce the computational burden of the controller 120, but is not limited thereto, and the controller 120 with an A/D converter built-in When using , an analog ammeter, voltmeter or power meter may be used.

The module power measurement means 110 is provided in a one-to-one correspondence for each photovoltaic module 10, and thus a plurality of individual generated power values detected from a plurality of photovoltaic modules 10 are input to the controller 120. The controller 120 stores input individual generated power values in the memory 121 and calculates an average power value of the individual generated power values. And the controller 120 calculates the individual power generation efficiency using the average power value and the individual power generation value, compares the individual power generation efficiency with the reference efficiency, and if the individual power generation efficiency is less than (or less than) the reference efficiency, the specific corresponding solar module (10) It is judged as an abnormal (or failure) state.

As an example, if the photovoltaic power generation facility 1 provided with 10 single-sided photovoltaic modules 10 of 450W class is described as an example, 10 photovoltaic modules 10 have to independently measure individual power values. Ten module power measuring means 110 are provided individually. Accordingly, the controller 120 receives 10 individual generated power value data.

The 10 individual generated power values input to the controller 120 may be different individual generated power values. For example, 10 individual generated power values are input, one individual generated power value is 355W and the other 9 Assuming that the individual generated power values are all the same 405W, the total generated power value is “(355*1)+(405*9)=4000W”. If these total generated power values are divided by 10, the average power value becomes "4000/10 = 400W". In addition, when the individual generation efficiency is calculated by dividing the individual generation power value by the average power value of 400W, the individual generation efficiency of one solar module 10 having an individual generation power value (355W) is "355/400 = 0.8875" ", and the individual power generation efficiency of the 9 solar modules 10 having individual power generation values (405 W) becomes "405/400 = 1.0125".

At this time, when the standard efficiency is set to 0.9, it is determined that the power generation efficiency of one solar module 10 having an individual power generation efficiency of "0.8875" is lowered due to various causes (eg dust accumulation, damage, etc.) Therefore, the controller 120 determines that the photovoltaic module 10 having an individual generation efficiency less than (or less than) the standard efficiency is in an abnormal (or failure) state.

When the controller 120 monitors the photovoltaic module 10 having an individual power generation efficiency that is less than (or less than) the standard efficiency, the controller 120 can determine whether the photovoltaic module 10 is abnormal (or failed) accordingly. Monitoring information is displayed on the status display unit 140 . In this case, the status display unit 140 may be composed of an LCD or a plurality of LEDs. For example, when the status display unit 140 is composed of an LCD, if the solar module 10 is managed in numerical order, the monitoring information displays an abnormal (or failure) state together with the management number of the solar module 10, or Alternatively, the abnormal (or faulty) state may be displayed by flickering the solar module 10 in an abnormal state on the entire solar module 10 arrangement screen. Of course, when the status display unit 140 has a configuration in which a plurality of LEDs are sequentially arranged, the solar module 10 controls the order of management numbers, and the solar module 10 in which an abnormal (or failure) state occurs according to the order of LED arrangement The LEDs in the order corresponding to may be displayed in a red light or blinking manner.

Of course, if the individual generated power value is not periodically input from the module power measuring unit 110 or is not input during the set period, the controller 120 also determines that the specific solar module 10 is in an abnormal (or faulty) state, Monitoring information indicating this is displayed on the status display unit 140 .

On the other hand, the solar module 10 is further provided with a tilt detection means 130 for detecting the degree of inclination, and generates a tilt signal when the solar module 10 is tilted more than a set angle in the installed state to control the controller 120 is entered as The tilt sensor 130 may be composed of a tilt switch or a tilt sensor of various types, and all design changes to this degree fall within the scope of the present invention.

Here, the tilt switch used as the tilt detection means 130 is a switch that turns on and off according to the tilt, and for example, a parts kitz HDX series switch can be used. It can be recognized by the controller 120. At this time, the tilt detecting means 130 is installed for each solar module 10 .

Therefore, when the tilt signal is detected through the tilt detection means 130 installed in the specific solar module 10, it is input to the controller 120, and accordingly the controller 120 determines the abnormality (or failure) of the specific solar module 10. By determining the status, monitoring information that can be known is generated and displayed on the status display unit 140.

In addition, the controller 120 determines that the specific photovoltaic module 10 is in an abnormal (or faulty) state, generates monitoring information that indicates this, and displays it on the status display unit 140. As in the case where the solar module 10 having individual power generation efficiency corresponding to (below) is monitored, it is displayed in various forms depending on the case composed of an LCD or a plurality of LEDs.

In addition, the photovoltaic power plant monitoring system 100 of the present invention is further provided with a vibration sensing means 160 for each photovoltaic module 10 to detect when the photovoltaic module 10 vibrates due to strong wind or gust of wind. can detect In this case, the vibration sensing means 160 may be composed of a vibration sensor installed on the solar module 10 to detect the vibration of the solar module 10, and the vibration signal detected by the vibration sensing means 160 in this way. Is input to the controller 120 to calculate the vibration intensity. Accordingly, the controller 120 sets the solar module 10 to an abnormal (or faulty) state when the vibration intensity exceeding the set intensity lasts for a minimum set time (for example, any set time from 10 seconds to 3 minutes). It determines and displays the monitoring information that can know this through the status display unit 140. This is to prevent damage or the like in advance by allowing a manager or the like to check in advance before the solar module 10 is damaged.

In addition, the solar power plant monitoring system 100 of the present invention outputs a warning sound through the audio output unit 170 when the individual power generation efficiency of the photovoltaic module 10 is less than the standard efficiency or a slope signal is detected. Of course, the audio output unit 170 is controlled by the controller 120. The voice output unit 170 may be configured as a buzzer that outputs a simple warning sound or as a speaker to perform voice guidance.

In addition, the controller 120 generates monitoring information about the abnormal (or failure) state of the photovoltaic module 10 when the individual power generation efficiency of the photovoltaic module 10 is less than the reference efficiency or a slope signal is detected, and the generated The monitoring information is transmitted to the manager terminal 200 through the communication unit 150 . Of course, if the vibration intensity exceeding the set intensity lasts for a minimum set time (for example, a random set time of 10 seconds to 3 minutes), the controller 120 generates monitoring information even in this case through the communication unit 150. It is transmitted to the manager terminal 200.

In this case, the communication unit 150 includes various communication modules capable of short-distance or long-distance communication, and the manager terminal 200 includes a smart phone as well as a work PC.

Therefore, the controller 120 can transmit monitoring information to a business PC connected to a network through the communication unit 150, and it is also possible to transmit monitoring information to a manager's smartphone. Through this, the manager can perform maintenance of the photovoltaic power plant 1 quickly.

Meanwhile, the module power measurement means 110, the tilt detection means 130, and the vibration detection means 160 are installed for each photovoltaic module 10, and when the input port of the controller 120 is not sufficient, A local controller is provided for each photovoltaic module 10 to collect signals or data detected by the module power measurement means 110, tilt detection means 130, and vibration detection means 160, and send them to the controller 120 periodically. It is also possible to transmit data, collect data comprehensively in the controller 120, and process data. Accordingly, it is obvious that this degree of design change also falls within the scope of the present invention.

Hereinafter, a driving example of a solar power plant monitoring system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .

While the solar power generation facility 1 is being operated, the controller 120 periodically receives individual generated power values from the module power measurement means 110 to monitor the state of the photovoltaic power generation facility 1, and the tilt detection means 130 ) to monitor whether the slope signal is input. Of course, the vibration state of the photovoltaic module 10 is continuously (or periodically) monitored through the vibration sensing means 160 .

Accordingly, the controller 120, when a plurality of individual generated power values detected from the plurality of photovoltaic modules 10 are input, stores them in the memory 121 and simultaneously calculates an average power value of the individual generated power values, and calculates the average power value and Individual generation efficiency is calculated using individual generation power values, and if the individual generation efficiency is less than (or less than) the standard efficiency, it is determined that an abnormality (or failure) condition has occurred in the corresponding solar module 10, and the specific solar module 10 ) Generates monitoring information including the abnormal (or failure) state, displays it on the status display unit 140, outputs a warning sound through the audio output unit 170, and transmits monitoring information through the communication unit 150 to the manager terminal ( 200) is sent.

Of course, the controller 120 determines that the solar module 10 is in an abnormal (or faulty) state even when the individual generated power value is not periodically input from the module power measuring unit 110 or is not input during a set period, and Monitoring information including the abnormal (or failure) state of the photovoltaic module 10 is generated and displayed on the status display unit 140, and a warning sound is output through the audio output unit 170 and monitored through the communication unit 150 at the same time. Information is transmitted to the manager terminal 200 .

In addition, the controller 120 monitors whether a slope signal is input through the slope detection means 130 even if the individual generated power value is determined to be within a normal range, that is, the standard efficiency or more, and when the slope signal is input from the slope detection means 130 It is determined that an abnormality (or failure) condition has occurred in the solar module 10, and monitoring information including an abnormality (or failure) state of the specific solar module 10 is generated and displayed in the status display unit 140, and voice A warning sound is output through the output unit 170 and monitoring information is transmitted to the manager terminal 200 through the communication unit 150 .

In addition, the controller 120 analyzes the vibration signal detected by the vibration sensing unit 160 even when the individual generated power value is within a normal range, that is, the standard efficiency or higher, and even when the tilt signal is not input through the tilt sensing unit 130. If the vibration intensity exceeding the set intensity lasts for the minimum set time (for example, any set time of 10 seconds to 3 minutes), the solar module 10 is judged as a state of concern for damage or an abnormal (or failure) state Generates monitoring information including the abnormal (or failure) state of a specific solar module 10, displays it on the status display unit 140, outputs a warning sound through the audio output unit 170, and simultaneously through the communication unit 150 The monitoring information is transmitted to the manager terminal 200 so that the manager can check it later during maintenance.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art can make various modifications and variations without departing from the essential characteristics of the present invention. The protection scope of should be interpreted by the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1: Solar power plant 2: Fence
10: solar module 20: inverter
30: energy storage system (ESS) 100: solar power plant monitoring system
110: module power measuring means 120: controller
130: tilt detection means 140: status display unit
150: communication unit 160: vibration sensing means
170: audio output unit 200: manager terminal

Claims (6)

A module power measurement means 110 for detecting individual generated power values output from a plurality of photovoltaic modules 10 constituting the photovoltaic power generation facility 1, and individual power generation measured by the module power measurement means 110 The average power value of the power values is calculated, and if the generation efficiency of the individual generated power values for the average power value is less than the reference efficiency, the abnormal state of the solar module 10 is determined by determining the abnormal state of the solar module 10. It is composed of a controller 120 that generates monitoring information including;
The controller 120 stores the individual generated power values input from the plurality of module power measuring means 110 in the memory 121, calculates an average power value of the individual generated power values, and averages the individual generated power values. Divide by the power value to calculate the individual power generation efficiency, and if the individual power generation efficiency is less than the reference efficiency, determine that the photovoltaic module 10 is in an abnormal state and generate monitoring information;
When the controller 120 generates monitoring information including an abnormal state of the photovoltaic module 10, it is displayed on the status display unit 140, outputs a warning sound through the audio output unit 170, and simultaneously transmits the communication unit 150. transmits monitoring information to the manager terminal 200 through;
The controller 120 determines that the solar module 10 is in an abnormal state when a tilt signal is input from the tilt detecting means 130 installed for each photovoltaic module 10 and generates monitoring information;
The controller 120 calculates the vibration intensity when a vibration signal is input from the vibration sensing means 160 installed for each solar module 10, and if the vibration intensity exceeds the preset intensity and lasts for a minimum set time, the solar light A solar power plant monitoring system characterized in that it generates monitoring information by determining the abnormal state of the module (10).
According to claim 1,
The controller 120 determines that the solar module 10 is in an abnormal state when the individual generated power value is not periodically input from the plurality of module power measuring means 110 or is not input during a set period to generate monitoring information Solar power plant monitoring system, characterized in that.
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