KR20130027777A - Apparatus and method for analyzing power of solar cell module which can be synchronzied setting time - Google Patents

Abstract

PURPOSE: A measurement time synchronized photovoltaic module electric power analysis device and a method are provided to reduce an error rate of electric power measurement by making not be influenced by illumination and sunlight and illumination causing time difference when measuring the watt hour of each module. CONSTITUTION: A measurement time synchronized photovoltaic module electric power analysis device includes a photovoltaic module(10), a current meter(20), a voltage meter(30), a module antenna(40), a collection device(50), a collection antenna(60), a temperature sensor(70) and a sun radiation sensor(80). The photovoltaic module connects a photovoltaic module in the lengthwise and the widthwise directions and collects generated electricity. The temperature sensor is attached to the photovoltaic module and measures temperature of the photovoltaic module. The sun radiation sensor is attached to the photovoltaic module and measures the amount of sun radiation incident to the photovoltaic module. The voltage meter measures voltage in which the photovoltaic module accumulates. The current meter measures current flowing in the photovoltaic module. The module antenna is attached to the photovoltaic module and transceives data. The collection device generates a random number every command and every time to transmit data to the photovoltaic module and transmits. [Reference numerals] (10) Photovoltaic module

Description

Measurement time synchronized solar module power analysis device and method {APPARATUS AND METHOD FOR ANALYZING POWER OF SOLAR CELL MODULE WHICH CAN BE SYNCHRONZIED SETTING TIME}

The present application relates to a solar module power analysis device and method synchronized with the measurement time, and more specifically, a measurement that can determine whether the problem and the problem module through the comparative analysis of the generation power of the solar module after installation in the field The present invention relates to a time-synchronized solar module power analysis apparatus and method.

In general, photovoltaic generators are actively being researched and developed in advanced countries as a solution to global environmental problems and diversification of future energy sources due to the pollution-free and indefiniteness of solar energy. The development of photovoltaic generators is fueled by much interest in the development of environmentally friendly energy that can be conserved.

However, after the solar generator is produced by the manufacturer, it is handed over to the installer and moved to the installation site requested by the consumer, or damaged by external shock during the installation of the generator. It was often done.

In case of failure caused by external shock, it is difficult to estimate the degree of impact and when the shock occurred, so the responsible material for the damage was unclear, and the manufacturer had to take the damage. As the situation is expanding, the demand for integrated management of remote sites is increasing.

However, the conventional operation management was performed only for large-scale workplaces, and the equipment added to the solar generator for operation management is expensive equipment and cannot be used in small-scale workplaces or homes, and thus it is installed and operated in small-scale workplaces or homes. If the current solar generator does not produce normal power, it is not easy to detect the occurrence and cause of the failure or failure of the solar generator.

1 is a block diagram according to the operation management system and method of the solar generator according to the prior art. As shown in Figure 1, the operation management system of the solar generator is published in the application number 10-2009-0062857, the operation management system of the solar generator (hereinafter referred to as "operation management system") is an operation management agent It consists of a device (hereinafter referred to as an agent), a wireless repeater (AP, hereinafter referred to as a `` relay '') and an operation management manager device (hereinafter referred to as a `` manager '').

The solar generator and the operation management agent device are combined (hereinafter referred to as the solar generator system) and the agent is attached to the solar generator (hereinafter referred to as the 'generator') to detect shock and illuminance. And measuring the production power and delivering the measured information to the manager through the repeater.

Here, when the operator requests information through the manager, the manager is also responsible for providing the requested information. The agent device and the wireless repeater communicate wirelessly, the repeater is wirelessly connected to one or more agents, and wired to the manager to enable a connection between the agent and the manager.

That is, the main role of the repeater is for communication coupling between the agent and the manager, and the repeater can perform both wired or wireless communication between the agent or the management. In particular, when a mobile communication network is used as a communication network for the agent and the manager, the repeater plays a role.

The manager receives the impact information, illuminance and production power information from the agent through the repeater, and manages the defect of the solar generator panel and the abnormality of the solar generator, and transfers the necessary information for operation management to the agent. Some may ask.

However, the disclosed technology cannot directly compare current, voltage, and power in the field to compare instantaneous voltage, instantaneous power, and solar radiation, and it is only after the power of each module is turned off to measure the amount of power. It was possible to determine the failure of the solar modules. Instead of synchronizing the time of each module to collect data at a certain time, the power amount of each module was measured with each power off. When the time difference occurs, the amount of power is often incorrectly measured under the influence of illuminance, solar radiation, and the like.

The present application has been made to solve the above problems, the measurement time-synchronized photovoltaic module power analysis device that can compare the instantaneous voltage, instantaneous power and power versus love by measuring current, voltage and power directly in the field And to provide a method.

An object of the present application is to provide a measurement time-synchronized solar module power analysis apparatus and method that can measure the amount of power of each module without turning off the power of each module to determine whether the failure of each module.

The present application does not generate a time difference when measuring the power amount of each module by generating a random number capable of synchronizing time without turning off each power supply, and is not affected by illuminance and insolation, It is an object of the present invention to provide a solar module power analysis apparatus and method that is synchronized with the measurement time to reduce the measurement error rate.

In order to achieve the object as described above, the present application, among the embodiments, at least one solar module for collecting electricity produced by connecting the solar cell in the longitudinal and transverse; A temperature sensor attached to the solar module to measure a temperature of the solar module; An insolation sensor attached to the photovoltaic module to measure the amount of incidence incident on the photovoltaic module; A voltmeter for measuring the voltage integrated by the solar module; An ammeter for measuring a current flowing in the solar module; A module antenna attached to the solar module to transmit and receive data; And a collection device generating a command and transmitting a random number every predetermined time to transmit the data to the photovoltaic module.

In one embodiment, the collecting device comprises: a collector for generating a random number every predetermined time and sending a command to a solar module to obtain the data; An indicator displaying data obtained from the collector; And a collection antenna attached to the collection device for generating random numbers with the solar module for transmission and reception for collecting the data. It is made to solve the problem using.

In one embodiment, the collection antenna and the module antenna is made to solve the problem by using the transmission and reception in ZigBee (ZigBee) communication.

Among the embodiments, the first step of generating a random number in the collecting device every predetermined time, the data collecting device to request data to each solar module; A second step of transmitting the voltage of each photovoltaic module by attaching the random number to each photovoltaic module that has received data in the first stage; A third step of treating the data as valid data and comparing it with an instantaneous voltage and a solar radiation-to-solar voltage to detect failure of the photovoltaic module when the random number transmitted from the collecting device and the random number transmitted from the solar module are the same; And a fourth step of notifying that the small data is a failure of the detected solar module when the instantaneous voltage and the solar radiation relative voltage are smaller than the instantaneous voltage. It is made to solve the problem using.

In one embodiment, when the random number attached to the data collected by the collecting device is the same, the third step is treated as valid data and compared with the instantaneous voltage and the solar radiation-to-solar voltage to detect the failure of the solar module ; It is possible to solve the problem by using a substitute.

Among the embodiments, the first step of generating a random number in the collecting device every predetermined time, the data collecting device to request data to each solar module; A second step of transmitting the voltage of each photovoltaic module by attaching a random number generated by a random number generator in each photovoltaic module to each photovoltaic module that has received data in the first stage; A third step of treating the data as valid data and comparing it with an instantaneous voltage and a solar radiation-to-solar voltage to detect failure of the photovoltaic module when the random number transmitted from the collecting device and the random number transmitted from the solar module are the same; A fourth step of notifying that the small data is a failure of the detected solar module when the instantaneous voltage and the solar radiation voltage are smaller than the voltage; It is made to solve the problem using.

As described above, the disclosed technology of the present application having the configuration as described above, by installing a voltmeter and an ammeter in each module, by comparing the instantaneous voltage, instantaneous power, and solar radiation relative power directly in the field when different from the reference value The failure of the solar modules can be determined, the power amount of each module can be measured without turning off the power of each module, and the failure of each module can be determined, and the time can be synchronized without turning off each power supply. By generating a random number that can be generated so as not to generate a time difference when measuring the power amount of each module, so as not to be affected by illuminance, solar radiation, etc., it is possible to reduce the error rate of power measurement.

1 is a block diagram showing a system and method for operating and managing a solar generator according to the prior art.
2 is a block diagram illustrating a solar module power analysis device synchronized with the measurement time according to the present application.
3 is a flow chart showing that the measurement time synchronized solar module power analysis apparatus according to the present application is executed.
Figure 4 is a flow chart illustrating that the measurement time synchronized solar module power analysis apparatus according to an embodiment of the present application is executed.
5 is a block diagram illustrating a transmission and reception method of a solar module power analysis device synchronized with measurement time according to the present application.

The description of the disclosed technique is merely an example for structural or functional explanation and the scope of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments may be variously modified and may have various forms, and thus the scope of the disclosed technology should be understood to include equivalents capable of realizing the technical idea. In addition, the objects or effects presented in the disclosed technology does not mean that a specific embodiment should include all or only such effects, and thus the scope of the disclosed technology should not be understood as being limited thereto.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring to", should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosed technology belongs, unless otherwise defined. Generally, the terms defined in the dictionary used are to be interpreted to coincide with the meanings in the context of the related art, and should not be interpreted as having ideal or excessively formal meanings unless clearly defined in the present application.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a solar module power analysis device synchronized with the measurement time according to the present application. As shown in FIG. 2, the photovoltaic module power analysis device synchronized with the measurement time includes a photovoltaic module 10, an ammeter 20, a voltmeter 30, a module antenna 40, and a collecting device 50. ), A collection antenna 60, a temperature sensor 70, and an insolation sensor 80.

Here, the solar module (Solar Module 10) is a form in which the solar cells are connected by connecting them vertically and laterally, and the electricity generated from the individual solar cells is collected at the same time in the module. The specification can be expanded to around 200W.

The ammeter 20 may be coupled by connecting a plurality of solar modules 10 to 1 to n according to the power generation capacity, only one is connected in series to measure the current of the photovoltaic module 10.

The ammeter 20 should be connected in series with the photovoltaic module 10 when in use, and if the pole of the ammeter 20 is changed, the instructions of the meter also move in reverse, so that the ammeter 20 should be installed so as not to change. If a voltage drop occurs due to difficulty in measuring an accurate current, the accuracy of the measurement may be increased by using an ammeter 20 having a small internal resistance value.

In addition, if high precision is required, the internal resistance of the ammeter must be checked in advance to correct the error. If the current to be measured is very large, a divider connected in parallel to the moving coil can be used for several tens of amps. When you want to know a very small current that can read a large current of amperage and cannot be measured with an ammeter, a galvanometer is used, which is appropriately determined according to the number and size of the solar module 10. It is selectable.

In addition, the ammeter 20 may use a digital ammeter, because the digital ammeter passes a current through a standard resistor mounted inside the ammeter, and then measures the voltage drop. This is because the measured value can be read accurately because it is converted into a signal and displayed as a number.

In addition, the voltmeter 30 is to install the n voltmeter 30 so as to correspond to the number of the n photovoltaic module 10, and measure the voltage (Drop) applied to each photovoltaic module (Drop).

The voltmeter 30 may use an indication voltmeter in which the measurement result is displayed in scale, a digital voltmeter in number, and the like, and install one voltmeter 30 per one solar module 10 in parallel. The reason is that the voltage is constant when connected in parallel, so that the voltmeter 30 is connected in parallel to measure the voltage.

In addition, the voltmeter 30 is used to measure the DC voltage, and the current dynamometer which is relatively excellent in precision and is not influenced by the ambient conditions so that a stable moving coil type voltmeter, a DC and AC combined voltmeter can obtain quite precise values. The voltmeter and the like can be used in various ways according to the number of solar modules 10 and changes in environment.

Here, the digital voltmeter converts the measured voltage into a digital signal and displays it numerically. The digital voltmeter is higher in accuracy than the indication voltmeter.

The module antenna 40 is disposed in the solar module 10, respectively, and receives a data transmission request from the collecting device 50, the data of the solar module 10 through the module antenna 40, the collecting device 50 to be transmitted.

The collecting device 50 includes a data collector 51 and an indicator 53, and the collector 50 receives and receives data from the solar module 10 through the collecting antenna 60. The data is analyzed to determine whether there is a solar module 10 having a problem, and the identified data are displayed on the display 53.

Acquisition antenna 60 is made to transmit and receive with the module antenna 40, the communication method uses ZigBee (ZigBee), where ZigBee is IEEE 802.15.4 low power for a wireless personal communication network (WPAN) It is intended to use digital radio and unlike other wireless personal networks (WPANs) such as Bluetooth, ZigBee is a relatively inexpensive and simple technology.

It is also optimized for low data transfers, low power consumption, secure networking, and because of its low cost, it can be widely deployed in wireless control and monitoring applications, while low power extends battery life and provides mesh networking capabilities. Therefore, it can provide a high level of reliability in a wide range of areas.

The temperature sensor 70 is a sensor that responds to a change in temperature, and is used to automate temperature management by detecting a change in temperature. In the technique of the present application, the temperature sensor 70 is applied to each solar module 10. It is attached to measure the temperature of each of the solar modules 10.

The solar radiation sensor 80 may be formed of a photodiode. The photodiode is a kind of semiconductor diode, also called a photodiode, and converts light energy into electrical energy.

Here, a photodiode is a type of optical sensor that converts light energy into electrical energy, which adds a photodetection function to the PN junction of a semiconductor. When light hits the diode, electrons and positive charge holes are generated, and current is generated. And the magnitude of the voltage is almost proportional to the light intensity.

The photodiode is characterized by fast response speed, wide sensitivity wavelength, and good linearity of photocurrent. Therefore, photodiode is used to accurately measure the intensity of light. The phototransistor is similar in function, but phototransistors are more sensitive to light and have a slower response rate than photodiodes because they are caused by the amplification of current when light is emitted.

Therefore, if it is possible to detect light and measure the amount of solar radiation, various solar radiation detectors may be installed depending on the installed field size or the number of photovoltaic modules 10 except for the photo diodes described above.

3 is a flow chart showing that the measurement time synchronized solar module power analysis apparatus according to the present application is executed. As shown in FIG. 3, the time-synchronized photovoltaic module power analysis device 1 of the present application starts with generating random numbers in the collecting device 50 at a predetermined time (S100).

In the collecting device 50, the random number generated in the step S100 is inserted into one of the two compartments, and the collecting antenna is collected into the module antenna 40 of the solar module 10 with the other empty. The data request command is transmitted through 60 (S110).

On the other hand, in each of the photovoltaic modules 10 when the command is transmitted, the current from the ammeter 20 connected in series to the photovoltaic module 10, the voltmeter 30 connected in parallel to each photovoltaic module 10 The temperature is collected from the temperature sensor 70 and the solar radiation sensor 80 attached to each photovoltaic module 10, and the temperature, solar radiation, and the like.

Then, the collected voltage, temperature, insolation amount and current data collected by one ammeter 20 are put in the other random cell generated in the step S100, that is, the random number and the data is pasted to the collecting device ( 50) (S120).

Then, the collection device 50 checks whether the random number transmitted from the collection device 50 and the random number transmitted from the photovoltaic module 10 match (S130).

The reason for this is that random numbers are generated in units of about 1 minute. Since the data transmitted from the photovoltaic module 10 after 1 minute is not synchronized with the correct time, the data is transmitted after a certain time has elapsed. This is because it is inaccurate data for checking the failure of the solar module 10.

For example, assuming that the random number generated in synchronization at 12 o'clock is 1234 and the random number generated in synchronization at 12:10 is 1256, the temperature, solar radiation measured by each solar module 10 at 12 o'clock, etc. Since the temperature measured by each solar module 10 and the amount of insolation may vary according to the altitude of the sun at 12:10, when the data are measured at different times and compared with each other, 12:10 This is because even though the data arrived at the minute are accurate values, the error due to the change in the data value due to the change in the altitude of the sun can be overlooked and the failure of the solar module 10 transmitted at 12:10 can be determined. .

And, the predetermined time is 30 seconds to 5 minutes.

Therefore, it is determined whether the random number transmitted from the collecting device 50 and the random number transmitted from the photovoltaic module 10 match (S130), and if it is the same, it is time synchronization, that is, data measured at the same time. Input (S140).

Then, in order to confirm the failure of each solar module 10, the instantaneous voltage and the voltage value of each solar module 10 is compared (S150), and when the voltage value is low, the voltage and the amount of solar radiation The voltage values of the solar modules 10 are compared (S160).

If each step (S150, S160) is lower than the instantaneous voltage, the solar radiation compared to the voltage, it is determined that the photovoltaic module 10 is a failure, the low voltage value in any one of the photovoltaic module 10 from 1 to n Since it is possible to determine whether it is out, it is possible to easily determine which solar module 10 has failed in real time and needs to be replaced without turning off the power in the field (S170).

If the data voltage is higher than the instantaneous voltage in step S150, if the voltage value of the solar radiation is higher than the data voltage of the solar radiation, the voltage value of the solar radiation is high. If not, the algorithm according to the description of the present application is terminated.

In addition, when the random number transmitted from the collection device 50 and the random number transmitted from the solar module 10 are not the same in step S130, the synchronization of time is not matched. Go back and generate a random number to synchronize again.

Figure 4 is a flow chart illustrating that the measurement time synchronized solar module power analysis apparatus according to an embodiment of the present application is executed. As shown in FIG. 4, the time-synchronized photovoltaic module power analysis device 1 of the present application starts with generating random numbers in the collecting device 50 at a predetermined time (S100).

In the collecting device 50, the random number generated in the step S100 is inserted into one of the two compartments, and the collecting antenna is collected into the module antenna 40 of the solar module 10 with the other empty. The data request command is transmitted through 60 (S110).

On the other hand, in each of the photovoltaic modules 10 when the command is transmitted, the current from the ammeter 20 connected in series to the photovoltaic module 10, the voltmeter 30 connected in parallel to each photovoltaic module 10 The temperature is collected from the temperature sensor 70 and the solar radiation sensor 80 attached to each photovoltaic module 10, and the temperature, solar radiation, and the like.

Then, the collected voltage, temperature, insolation amount and current data collected by one ammeter 20 are put in the other random cell generated in the step S100, that is, the random number and the data is pasted to the collecting device ( 50) (S120).

Then, the collection device 50 checks whether the random number transmitted from the collection device 50 and the random number transmitted from the photovoltaic module 10 match (S130).

The reason for this is that random numbers are generated in units of about 1 minute. Since the data transmitted from the photovoltaic module 10 after 1 minute is not synchronized with the correct time, the data is transmitted after a certain time has elapsed. This is because it is inaccurate data for checking the failure of the solar module 10.

For example, assuming that the random number generated in synchronization at 12 o'clock is 1234 and the random number generated in synchronization at 12:10 is 1256, the temperature, solar radiation measured by each solar module 10 at 12 o'clock, etc. Since the temperature measured by each solar module 10 and the amount of insolation may vary according to the altitude of the sun at 12:10, when the data are measured at different times and compared with each other, 12:10 This is because even though the data arrived at the minute are accurate values, the error due to the change in the data value due to the change in the altitude of the sun can be overlooked and the failure of the solar module 10 transmitted at 12:10 can be determined. .

And, the predetermined time is 30 seconds to 5 minutes.

Therefore, it is determined whether the random number transmitted from the collecting device 50 and the random number transmitted from the photovoltaic module 10 match (S130), and if it is the same, it is time synchronization, that is, data measured at the same time. Input (S140).

Then, in order to confirm the failure of each solar module 10, it is checked whether there is data out of a certain error range among the voltage values of each solar module 10 (S151).

Here, when there is data out of a certain error range, it is also checked whether there is data out of a certain error range among voltages relative to the solar radiation amount (S161), and if any one of the steps (S151, S161) is out of the error range, It is determined that the failure of the optical module 10, and it is possible to determine which of the low voltage value from the solar module 10 from 1 to n, which solar module in real time without turning off the power immediately in the field It is possible to easily determine whether the failure has occurred 10 and needs replacement (S170).

If, in step S150, there is data outside the constant error range of the solar radiation, even if it is within a certain error range of each data voltage, the flow moves to step S170, which is determined to be a failure. Terminate the algorithm according to.

In addition, when the random number transmitted from the collection device 50 and the random number transmitted from the solar module 10 are not the same in step S130, the synchronization of time is not matched. Go back and generate a random number to synchronize again.

5 is a block diagram illustrating a transmission and reception method of a solar module power analysis device synchronized with measurement time according to the present application. As shown in FIG. 5, when the collecting device 50 generates a random number to synchronize the time and transmits the random number to the photovoltaic module 10, the photovoltaic module 10 transmits the amount of insolation, temperature, You can also paste only data such as voltage and current.

Alternatively, for the same time synchronization, the solar module 40 may adopt the method of generating the same random number, generating the same random number together with the data, and synchronizing the time.

The former method can increase the accuracy of time synchronization, but the solar module 10 should also be equipped with a random number generator capable of time synchronization, and the latter method collects and compares only the synchronized data, so that resynchronization can be achieved. Therefore, there is a disadvantage in that it is impossible to detect an error of all solar modules 10.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the following claims It can be understood that

1: PV module power analysis device synchronized with measurement time
10: solar module 20: ammeter
30: voltmeter 40: module antenna
50: collector 51: collector
53: indicator 60: acquisition antenna
70: temperature sensor 80: solar radiation sensor

Claims (9)

At least one photovoltaic module for collecting electricity produced by connecting the photovoltaic cells longitudinally and laterally;
A temperature sensor attached to the solar module to measure a temperature of the solar module;
An insolation sensor attached to the photovoltaic module to measure the amount of incidence incident on the photovoltaic module;
A voltmeter for measuring the voltage integrated by the solar module;
An ammeter for measuring a current flowing in the solar module;
A module antenna attached to the solar module to transmit and receive data; And
A collection device for generating and transmitting a random number every predetermined time and a command to transmit the data to the solar module;
Measurement time synchronized solar module power analysis device comprising a.
The method of claim 1,
The collection device
A collector for generating a random number every predetermined time and sending a command to the solar module to obtain the data;
An indicator displaying data obtained from the collector; And
A collecting antenna attached to the collecting device for generating random numbers with the solar module for transmission and for receiving the data;
Measurement time synchronized solar module power analysis device, characterized in that comprises a.
The method of claim 2,
And the collection antenna and the module antenna are transmitted and received by ZigBee communication. The method of claim 3,
The voltmeter is connected to the photovoltaic module in parallel with the number of the photovoltaic module measuring time synchronized solar module power analysis device. The method of claim 3,
The time module of the solar module power analysis device, characterized in that only one ammeter is connected in series with the photovoltaic module. Generating a random number in a collecting device at a predetermined time and requesting data to each solar module from the collecting device;
A second step of transmitting the voltage of each photovoltaic module by attaching the random number to each photovoltaic module that has received data in the first stage;
A third step of treating the data as valid data and comparing it with an instantaneous voltage and a solar radiation-to-solar voltage to detect failure of the photovoltaic module when the random number transmitted from the collecting device and the random number transmitted from the solar module are the same; And
A fourth step of notifying that the small data is a failure of the detected solar module when the instantaneous voltage and the solar radiation relative voltage are smaller than the instantaneous voltage;
Measurement time synchronized solar module power analysis method, characterized in that comprises a. The method of claim 6,
In the third step,
If the random numbers attached to the data collected by the collection device are the same, treating the data as valid data and comparing the instantaneous voltage and the solar radiation-to-solar voltage to detect a failure of the solar module;
The time-synchronized photovoltaic module power analysis method, characterized in that replaceable. Generating a random number in a collecting device at a predetermined time and requesting data to each solar module from the collecting device;
A second step of transmitting the voltage of each photovoltaic module by attaching a random number generated by a random number generator in each photovoltaic module to each photovoltaic module that has received data in the first stage;
A third step of treating the data as valid data and comparing it with an instantaneous voltage and a solar radiation-to-solar voltage to detect failure of the photovoltaic module when the random number transmitted from the collecting device and the random number transmitted from the solar module are the same;
A fourth step of notifying that the small data is a failure of the detected solar module when the instantaneous voltage and the solar radiation relative voltage are smaller than the instantaneous voltage;
Measurement time synchronized photovoltaic module comprising a. The method of claim 6,
In the third step,
If the random numbers attached to the data collected by the collection device are the same, treating the data as valid data and comparing the instantaneous voltage and the solar radiation-to-solar voltage to detect a failure of the solar module;
The time-synchronized photovoltaic module power analysis method, characterized in that replaceable.

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