KR102454755B1 - Diagnostic system of the PV module with Power Control Functions - Google Patents

Abstract

The present invention relates to a solar module diagnosis system, and more particularly, to a solar module diagnosis system implemented with an individual power control function for detecting the state of individual solar modules through a wireless diagnostic system in a junction box. In the solar module diagnosis system of the present invention, a junction box is installed on the back surface of a solar module in which a plurality of solar cells are connected in series, wherein DC power generated from each solar module is transmitted to an inverter through the junction box to covert the DC power to AC power and a monitoring device checks whether each solar module normally produces power.

Description

Solar module diagnostic system with individual power control functions {Diagnostic system of the PV module with Power Control Functions}

The present invention relates to a solar module diagnosis system, and in particular, by providing a wired communication (RS-485) system of wireless communication and power control function in a junction box provided on the rear side of a solar module installed in a mid- to large-sized solar power plant, It relates to a photovoltaic module diagnostic system that measures the voltage, current, and temperature generated by a unit photovoltaic module, and implements an individual power control function that can detect a photovoltaic module failure, detect the amount of generation in real time, and control individual power. .

The solar power generation system, which is pollution-free and converts infinite solar energy directly into electrical energy, has no mechanical vibration and noise because the power generation unit and control unit are composed of semiconductor elements and electronic components, and the cost of operation and maintenance is reduced. Since it can be minimized, it is already positioned as a major axis of new and renewable energy.

Therefore, in order to improve the energy efficiency of the photovoltaic power generation system and reduce the cost, domestic private/public organizations are concentrating on managing the power generation efficiency of each module unit, but there is a limit to managing the photovoltaic energy efficiency by the solar cell module unit. A new approach to efficient management of solar energy use was required.

Moreover, after a certain period of time has elapsed since the installation of the photovoltaic power generation system, whitening, electrode corrosion, and insulation breakdown start to appear in the photovoltaic module (PV Module), which is an essential component, leading to a decrease in power generation performance. , and long-term reliability and long-lived technology have emerged as great problems, and there is an urgent need to develop monitoring technology for them.

The lifespan of the photovoltaic module (PV Module) shows a problem in durability depending on the installation method and the installation environment, but more importantly, many problems are raised depending on the photovoltaic module constituent material and manufacturing process.

In the meantime, the solar module performance evaluation standard has been established and the certification system has been installed in the supply business with strict screening standards.

In particular, since the conventional photovoltaic system detects the presence or absence of abnormality only in the PV Module Array (a group in which several PV modules are connected in series), it is impossible to know which photovoltaic module has failed directly in the event of a photovoltaic module failure. In this case, in the case of photovoltaic system management, if the failure of the photovoltaic module was not treated in advance, the photovoltaic system did not operate normally, resulting in economic loss and problems that could strain the system.

Accordingly, various research institutes are actively researching and developing materials and manufacturing technologies for the long life of PV modules. There are many problems such as environmental factors.

Therefore, it was urgently required to secure a technology for maintenance management to remove the economic loss caused by the photovoltaic system not operating normally and the overload of the system caused by the malfunction.

1 is a schematic diagram schematically showing a 170Wp class PV Module stringed with 72 solar cells. When sunlight is normally transmitted to the solar module, and the solar cell operates normally, the prescribed power produces

However, if shading occurs in SCc24 solar cells due to cracks in the solar cell or surrounding facilities, natural falling objects (bird droppings, dust, snow, leaves), etc. As the internal resistance of D3 increases, current flows through D3, so it becomes impossible to produce power for the entire SCc1 to SCc24 solar cell. In addition, by causing deterioration by the internal resistance of SCc24 solar cell, it causes yellowing of EVA sheet, a component material of solar module, and damage to solar module due to hot spot phenomenon, making it impossible to generate electricity. .

In order to solve this problem, Patent Registration No. 1000734 (hereinafter referred to as 'Prior Invention 1') uses a shunt sensor and a USN (Ubiquitous Sensor Network) mold to detect the presence or absence of an abnormality in a solar module. As a result, there was a problem in that the output decreased due to the voltage drop occurring across the shunt sensor, which is a type of resistor, and the economical problem of installing a shunt sensor after each bypass diode was exposed.

In addition, Patent Registration No. 1245827 (hereinafter referred to as 'Prior Invention 2') (a device that detects shading and failure of a solar module using a micro inverter converter) is a non-contact magnetic field type Hole CT Sensor (Hole Current Transmitter Sensor). It is characterized in that the abnormal operation of the cell module is transmitted to the outside by measuring the current value by means of at least one communication module among a wireless transmission/reception (Tx/Rx) communication module for wireless communication or a wired transmission/reception communication module for wired communication. A device for detecting shading and failure of a solar module using a MiC (Micro inverter Converter) is proposed.

The MiC internal circuit board includes a plurality of electrical elements including a resistance (R), capacitance (C), processor (MCU), wireless transmission/reception (Tx/Rx) communication module or a wired transmission/reception communication module for wired communication. on-chip), converts direct current to alternating current in MiC with high power conversion efficiency, and at the same time measures current and voltage values to detect the presence or absence of a solar cell failure, and transmits the detection result to the outside in real time can be monitored.

However, the above prior invention 2 can be used as a substitute for a micro inverter (converting direct current to alternating current) used in mini photovoltaic modules (apartment veranda, etc.) connected with one or two photovoltaic modules. For use in power plants, problems that cannot be applied due to structural system problems and capacity limitations are exposed.

In addition, in the conventional photovoltaic power generation system including the prior invention, since it detects the presence or absence of abnormality in the PV Module Array (a group of multiple PV modules connected in series) on the screen of the wired monitoring system, when an individual photovoltaic module fails, It is not known whether the optical module has failed. In this case, in the case of photovoltaic system management, if the failure of the photovoltaic module is not handled in advance, the photovoltaic system does not operate normally, resulting in economic loss.

On the other hand, Patent Publication No. 2009-0002295 (Integrated operation and follow-up management system and method of solar power generation facilities) (hereinafter referred to as 'Prior Invention 3') converts light energy incident from the sun into electrical energy, and converts A solar cell that generates power, voltage, and current of the electric energy, a junction box that prevents reverse current to the solar cell, and a junction box that receives the received values of power, current and voltage, and DC power collected from the junction panel A technology consisting of a power generation control management console that is connected to a power conversion device (inverter) that converts AC power into AC power, collects data, and reports abnormalities to the central control management center, which is a higher level server, is disclosed. At this time, in the conventional technology in photovoltaic power generation, a central monitoring system using a remote terminal unit (RTU) that transmits the protocol specifications of the power conversion device (inverter) to the upper server and supports various types of communication methods construction method is used.

However, in the method of constructing a central monitoring system using a remote terminal unit of Prior Invention 3, the function of collecting data by each terminal system and transmitting it to the central control system, control by the local terminal (wired, wireless) system, self-monitoring and warning Although the function is implemented, there is a problem in that there is no real-time confirmation and judgment of the identified faults and failures, and only the error signal of the power conversion device (inverter) has to be relied on.

In addition, in Patent Registration No. 10-1420644 (hereinafter referred to as 'Prior Invention 4'), a monitoring system and a connection panel, an inverter, a server and a management terminal, an RF wireless communication module of the monitoring device, and a communication module of the connection panel are provided A wireless integrated junction panel applied to a photovoltaic facility monitoring system is known.

However, in the above prior invention 4, in order to monitor the measurement information of the photovoltaic power generation system in the server, it is transmitted to the server through the wired line established when the photovoltaic power generation system is constructed, so monitoring and maintenance of each photovoltaic module is required. There is an impossible problem.

In addition, Patent Registration No. 10-1479020 (hereinafter referred to as 'Prior Invention 5') discloses a solar cell connection unit 190 having a string connection terminal that can be respectively connected to a solar cell string; line connection portions (E+, E-) having line connection terminals that can be respectively connected to power lines; a bypass element (112, 114, 116) for bypassing all or part of the path of the solar cell string connected to the solar cell string according to the generation potential of the solar cell string connected to the solar cell connection part (190); and a functional module 120 that monitors the operating state of each solar cell string connected to each string terminal and transmits it to an external control system is known.

However, as in Prior Invention 5, bypassing a solar cell according to the presence or absence of abnormality in a plurality of string terminals constituting one solar cell is a basic issue of solar power generation, and a solar module that is defective by a simple bypass method. Since the (solar cell) itself cannot be short-circuited, there is a problem in that the overall efficiency of solar power generation is lowered.

The present invention has been proposed to solve the above problems, and a wireless communication transmission module and a power control module are provided in a junction box provided on the rear surface of a solar module in an existing solar power generation system, and the voltage and current of each solar module are provided. The purpose of this is to provide a solar module diagnostic system that implements individual power control functions that can monitor and control the situation in real time by measuring the amount of power generation and temperature.

In addition, the present invention allows the administrator to generate solar power through personal computer and mobile anytime, anywhere by wireless communication (Zigbee) and wired communication (Ethernet) provided in the wireless communication sending module and RS-485 wired communication of the power control module. Another object is to provide a photovoltaic module diagnostic system that implements an individual power control function capable of monitoring the situation.

In addition, the present invention assigns an identification code (ID) to diagnostic information including the power, current, voltage and temperature values of the solar module measured by the wireless communication transmission module of each junction box, and wirelessly transmits the information to the connection panel It is transmitted to the wireless communication receiving module within, and the power generation status of the photovoltaic module is monitored in real time through wired communication (Ethernet or RS485), and the power control system of the individual module that is abnormal is operated through the integrated management function and the corresponding function. A solar module diagnosis system that implements an individual power control function that can operate the power generation system normally even if there is an abnormal module by taking immediate action and blocking the reduction in the amount of electricity in the solar power plant due to the abnormal module in advance There is another purpose to provide.

In the solar module diagnostic system in which the individual power control function is implemented according to the present invention, a junction box is installed on the rear side of the solar module to which a plurality of solar cells are connected in series, and the DC power produced by each solar module is connected to the junction box. In the photovoltaic module diagnostic system that is transmitted to the inverter through the inverter and converted into AC power, and the monitoring device checks whether each photovoltaic module normally produces power, the detection result of the power production of each photovoltaic module is located inside the junction box is provided with a wireless communication transmission module for wirelessly transmitting the directly connected to the monitoring device by (Ethernet), and an input/output connector for + power inside the junction box; - A power control module equipped with input and output connectors for power is installed to realize serial and parallel connection with a solar module at the same time, and a power control module is installed that directly transmits the result data on power production to the monitoring device, In the power control module, the monitoring device performs a control command according to the state of the individual ID of the solar module, and blocks the power transmitted from the abnormally operating solar module to the junction box, and in the monitoring device, in the wireless communication receiving module By analyzing the transmitted data signal and the result data related to power production transmitted from the power control module, the voltage, current, and temperature of each solar module are individually displayed at regular time intervals or displayed on the entire list-up screen. , The wireless communication sending module has an ID indicator (Indicator) that displays the unique number of the solar module so as to perform the role of a router that manages a plurality of solar modules, and a dip switch for setting a channel for wireless communication ( Dip Switch), CPU performing control operation, SSR performing the role of electronic relay switch, communication chip for wireless communication, Zig BEE chip for short-range wireless communication, and power generation of each solar module and a sensor module, wherein the sensor module includes a voltage sensor for detecting a voltage of power transmitted from each photovoltaic module 10, a temperature sensor for measuring the temperature of each photovoltaic module, and a voltage for controlling abnormal voltage It is characterized in that it includes a control core.

In addition, normal or abnormal can be checked by detecting the amount of current flowing through each solar module through the power control module. In case of abnormality, the current path is changed to bypass the module and wired communication (RS-485) Another technical feature is that it is configured to transmit information about an abnormal solar module and an abnormal state to a higher-level monitoring device using

The present invention is provided with a wireless communication transmission module and a power control module using wired and wireless communication in a junction box provided on the rear surface of a solar module in a solar power generation system, and measures the voltage, current, power generation amount and temperature of each solar module This has the effect of monitoring and controlling the situation in real time.

In addition, the present invention allows the administrator to monitor and control the situation of solar power generation through a personal computer and mobile anytime, anywhere through wireless communication (Zigbee) and wired communication (Ethernet and RS-485) provided in the wireless communication sending module. There are other possible effects.

In addition, the present invention assigns an identification code (ID) to diagnostic information including the power, current, voltage and temperature values of the solar module measured by the wireless communication transmission module of each junction box, and wirelessly transmits the information to the connection panel There is another effect that it can be transmitted to the wireless communication receiving module (coordinator) in the inside and integrated management by monitoring the power generation status of the photovoltaic module in real time through wired Ethernet communication.

1 is a power connection diagram schematically showing a process in which current is normally communicated in a conventional solar module;
2 is a schematic diagram of a solar module diagnostic system in which an individual power control function according to the present invention is implemented;
3 is a power connection diagram of a solar module and a junction box of the present invention;
4 is a schematic diagram schematically showing a junction box of the present invention;
5 is a schematic diagram schematically showing the configuration of a wireless communication transmission module of the present invention;
6 is a schematic diagram schematically showing the configuration of a power control module of the present invention;
7 is a schematic diagram schematically showing a parallel connection method for cutting off the power supply of the photovoltaic module operating abnormally in each power control module of FIG. 7;
8 is a schematic diagram schematically showing the configuration of a wireless communication receiving module of the present invention.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the solar module diagnostic system in which the individual power control function according to the present invention is implemented is a wireless communication transmission module 100 and A junction box 20 having a built-in power control module 200 is installed, and the DC power produced by the solar module 10 is transferred to the inverter 40 through the junction box 30, and the inverter 40 ) is converted to AC power and supplied as a power source.

At this time, in the monitoring device 50 , each solar light according to the current signal transmitted through the power control module 200 provided in the junction box 20 and the wireless communication receiving module 300 provided in the junction box 30 . It is proposed to check whether the module 10 normally produces power.

In particular, in the present invention, the current signal of the power control module 200 provided inside the junction box 20 is transmitted to the monitoring device 50 by RS458 method wired communication, and at the same time, the junction box 30 The current signal of the wireless communication receiving module 200 of There is a technical specificity of the present invention in that the module 10 is configured to accurately diagnose a normal operation.

Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in FIG. 3 , the solar cells constituting the solar module 10 according to an embodiment of the present invention are divided into a plurality of groups and connected by a plurality of bypass diodes provided in the junction box 20 . Both ends of the bypass diode form a +/- terminal to output the power produced by the solar module 10 .

The photovoltaic module 10 is composed of a solar cell line in which a plurality of solar cells are connected in series and a bypass diode that bypasses the current. Since the voltage is applied in the reverse direction, no current flows through the bypass diode. However, when a shading occurs in the cell, the current flows through the bypass diode by bypassing the solar cell with increased electrical resistance. In one embodiment of the present invention, in the junction box 20, cells 1 to 24, cells 25 to 48, and cells 49 to 72 of the solar module 10 are divided into three groups, and bypass diodes D1 and D2 , connected by D3.

As shown in FIG. 4 , the junction box 20 includes a housing 21 and a cover 22 , and each photovoltaic module 10 is located on the inside of the housing 21 and the junction box 20 on the inside of the housing 21 . The wireless communication transmission module 100 for wirelessly transmitting the detection result for the power production of and a power control module 200 that directly transmits the result data for power production to the monitoring device 50 is installed.

The wireless communication sending module 100, as shown in FIG. 5, ID displaying the unique number of the photovoltaic module 10 so as to serve as a router for integrated management of a plurality of photovoltaic modules 10 An indicator 110, a dip switch 120 for channel setting for wireless communication, a CPU 130 that performs a control operation, and an SSR 140 that performs the role of an electronic relay switch and , a communication chip 150 for wireless communication, a Zig BEE chip 160 for short-range wireless communication, and a sensor module 170 for detecting power production of each solar module 10 .

In particular, the sensor module 170 includes a voltage sensor 171 that detects a voltage of power transmitted from each photovoltaic module 10 , and a temperature sensor 172 that measures the temperature of each photovoltaic module 10 , and , it is preferable to include a voltage control core 173 for controlling the abnormal voltage.

The router is a device that connects different networks, and serves as a route guide so that appropriate communication can be achieved between multiple networks. In the present invention, one wireless communication sending module 100 includes a plurality of It includes the meaning of being a means for collecting and managing the signals of the solar module 10 .

The ZigBee chip 160 is an electronic device in which a standard technology for a data network of a 2.4 GHz band is implemented in a frequency band having a low transmission speed, and is a short-distance communication technology that compensates for the disadvantages of high price and high power consumption of Bluetooth. , suitable for device control by low-speed information transmission as in the present invention.

The Zig BEE chip 160 transmits a data signal to the mobile device 60 of an adjacent manager, and is implemented to enable real-time monitoring of the photovoltaic power generation.

In addition, a wireless communication receiving module 300 for receiving a wireless signal transmitted from the wireless communication sending module 100 is provided inside the junction box 30 , and the wireless communication receiving module 300 of the junction box 30 is provided. ) is directly connected to the monitoring device 50 by wired Ethernet.

In addition, as shown in FIG. 6, the power control module 200 includes: + input/output connectors 210 and 220 for power; - input/output connectors 230 and 240 for power; a semiconductor switch 250 capable of designating a current path according to a state; A current sensor detection circuit 260 for recognizing a normal abnormal current value of each solar module 10, and a power control switch 270 for bypassing the current path of the abnormal solar module; a power control CPU 280 that determines whether current information is normal in real time and performs a control operation; It is configured to include a 485 communication port 290 for transferring the control signal of the power control CPU 280 to the external monitoring device 50 by wire.

At this time, the power control CPU 280 transmits the signal value transmitted from the current sensor detection circuit 260 to the monitoring device 50 through the wired 485 communication port 290 .

The power control module 200 checks the real-time current information of each solar module 10 in the power control CPU 270 through the current sensor detection circuit 260 and compares it with a predetermined normal or abnormal current reference value. do.

At this time, when the abnormal current value is recognized, the power control switch 270 is selected to bypass the current path of the abnormal module to minimize power loss. In addition, the situation is displayed through the power control dip switch 291 and the LED indicator 292, and it is implemented so that information can be transmitted through the RS-485 communication port 290 to the upper monitoring device.

Accordingly, when it is determined that the specific solar module 10 is abnormal, the power control switch 270 of the corresponding power control module 200 short-circuits the specific solar module 10 .

For example, as shown in FIG. 7, when the upper first photovoltaic module is abnormal, power produced from the upper second photovoltaic module is supplied to the junction box, and when the lower second photovoltaic module is abnormal, the first and third The power produced by direct connection is supplied to the junction box 30 .

This includes input/output connectors 210 and 220 for + power inside the junction box 20 of the present invention; - A power control module 200 having input/output connectors 230 and 240 for power, respectively, is provided, which is possible by simultaneously realizing series and parallel connection of adjacent solar modules, which is significantly improved compared to the prior art This is the technical distinction of the present invention.

In addition, the power control module 200 includes a dip switch 291 for setting a power control channel, and a power control LED indicator 292 that displays the unique number of each solar module 10 . more are available

On the other hand, the wireless communication receiving module 300 provided in the junction box 30 performs the role of a diagnostic module (coordinator) for grasping the specific state of each photovoltaic module (10).

As shown in FIG. 8 , the wireless communication receiving module 300 has a unique number of each photovoltaic module 10 so as to serve as a diagnostic module for managing a plurality of routers performed in each junction box 20 . A receiving module ID indicator (Indicator) 310 for displaying a dip switch (Dip Switch) 320 for setting a receiving module channel for wireless communication, and a receiving module CPU 330 for performing a control operation, wireless communication A receiving module communication chip 340 for, a receiving module Zig BEE chip 350 for short-range wireless communication, an Ethernet communication port 360 for wired Ethernet communication, and a power port 370 for supplying external power ) is included.

The reception module CPU 330 integrates the signal values transmitted from each wireless communication transmission module 100, and transmits a data signal including a code number, a router number, a voltage value, a current value, and a temperature value to a wired Ethernet (Ethernet). ) by the monitoring device 50 .

For example, an individual router ID is given to the wireless communication sending module 100 of the junction box 20 of each solar module 10 producing 440W, and 20 routers are integrated into the wireless communication receiving module 300 If a coordinator IC that can be managed is used, it can be applied to medium-to-large photovoltaic power plants in which photovoltaic modules are generally composed of 17 to 18 arrays.

Of course, if the number of integrated management increases, a plurality of coordinator ICs may be used. In this case, serial numbers are added in the same way as Coordinator 1 and Coordinator 2 .

In particular, the Zig BEE chips 160 and 350 provided in the wireless communication sending module 100 and the wireless communication receiving module 300 transmit a data signal to the mobile device 60 of an adjacent manager, It is implemented to enable real-time situation monitoring.

Therefore, the monitoring device 50 analyzes the data signal transmitted from the wireless communication receiving module 300 and the result data related to the power production transmitted from the power control module 200, and each solar module 10 is individually The voltage, current, and temperature of the voltage, current, and temperature are individually displayed at regular time intervals or displayed on the entire list-up screen.

In one embodiment of the present invention, the data signal is transmitted as an ASCII code, which is a standard code system, of a code number, a router number, a current pack, a voltage value, and a temperature value, and the monitoring device 50 converts it Thus, it is possible to check the status of each photovoltaic module in real time by displaying the numbers at regular time intervals.

The present invention as described above is not limited to the specific embodiments described above, and without departing from the gist of the present invention claimed in the claims, anyone with ordinary knowledge in the field to which the invention pertains can implement various modifications. will be.

10: solar module 20: junction box
21: junction box body 22: junction box cover
30: junction box 40: inverter
50: monitoring device 60: mobile device
100: wireless communication sending module 110: ID indicator
120: dip switch 130: CPU
140: SSR 150: communication chip
160: Zigbee communication chip 170: sensor module
171: voltage sensor 172: temperature sensor
173: voltage control core
200: power control module 210, 220: + input/output connector
230,240: - input/output connector 250: semiconductor switch
260: current sensor detection circuit 270: power control switch
380: power control CPU 290: 485 communication port
291: power control dip switch 292: power control LED indicator
300: wireless communication receiving module 310: receiving module ID indicator
320: receiving module dip switch 330: receiving module CPU
340: receiving module communication chip 350: receiving module Zigbee communication chip
360: Ethernet communication port 370: Power port

Claims (6)

A junction box is installed on the back of a solar module to which a number of solar cells are connected in series, and the DC power produced by each solar module is transferred to the inverter through the junction box and converted into AC power. In the solar module diagnostic system for checking whether the module is normally producing power,
A wireless communication transmission module 100 for wirelessly transmitting the detection result for power production of each solar module 10 to the junction box 30 is provided inside the junction box 20, and the A wireless communication reception module 300 for receiving a wireless signal transmitted from the wireless communication transmission module 100 is provided inside, and the wireless communication reception module 300 of the junction box 30 is connected to a wired Ethernet. directly connected to the monitoring device 50 by the junction box 20, and input/output connectors 210 and 220 for + power; - A power control module 200 equipped with input/output connectors 230 and 240 for power, respectively, is installed to simultaneously implement serial and parallel connection with the solar module 10, and monitor result data for power production A power control module 200 that directly transmits to the device 50 is installed,
In the power control module 200, the monitoring device 50 performs a control command according to the state of the individual ID of the photovoltaic module 10, and from the abnormally operating photovoltaic module 10 to the access box 30 Blocks the transmitted power, and the monitoring device 50 analyzes the data signal transmitted from the wireless communication receiving module 300 and the result data related to the power generation transmitted from the power control module 200, The module 10 individually displays each voltage, current, and temperature at regular time intervals or displays the entire list-up screen,
The wireless communication sending module 100 is an ID indicator (Indicator) 110 for displaying a unique number of the solar module 10 so as to perform the role of a router for integrated management of a plurality of solar modules 10 and , a dip switch 120 for channel setting for wireless communication, a CPU 130 performing a control operation, an SSR 140 performing the role of an electronic relay switch, and a communication chip for wireless communication ( 150) and a Zig BEE chip 160 for short-range wireless communication, and a sensor module 170 for detecting power production of each solar module 10,
The sensor module 170 includes a voltage sensor 171 for detecting the voltage of power transmitted from each photovoltaic module 10, a temperature sensor 172 for measuring the temperature of each photovoltaic module 10, and abnormal A solar module diagnostic system with an individual power control function, characterized in that it includes a voltage control core 173 for controlling the voltage.
The method of claim 1,
The power control module 200 includes input/output connectors 210 and 220 for + power; - input/output connectors 230 and 240 for power; a semiconductor switch 250 capable of designating a current path according to a state; A current sensor detection circuit 260 for recognizing a normal abnormal current value of each solar module 10, and a power control switch 270 for bypassing the current path of the abnormal solar module; a power control CPU 280 that determines whether current information is normal in real time and performs a control operation; a 485 communication port 290 for transferring the control signal of the power control CPU 280 to an external monitoring device 50 by wire; consists of,
In the power control CPU 280, an individual power control function is implemented, characterized in that the signal value transmitted from the current sensor detection circuit 260 is transmitted to the monitoring device 50 through a wired 485 communication port 290 Solar module diagnostic system.
3. The method of claim 2,
The power control module 200 includes a dip switch 291 for setting a power control channel, and a power control LED indicator 292 for displaying the unique number of each solar module 10. A solar module diagnostic system with an individual power control function, characterized in that it is implemented.
The method of claim 1,
The wireless communication reception module 300 is a reception module ID indicator that displays a unique number of each solar module 10 so as to serve as a diagnostic module for managing a plurality of routers performed in each junction box 20 . (Indicator) 310, and a dip switch (Dip Switch) 320 for channel setting of a receiving module for wireless communication, a receiving module CPU 330 for performing a control operation, and a receiving module communication chip for wireless communication ( 340) and a receiving module Zig BEE chip 350 for short-range wireless communication, and an Ethernet communication port 360 for wired Ethernet communication,
The reception module CPU 330 integrates the signal values transmitted from each wireless communication transmission module 100, and transmits a data signal including a code number, a router number, a voltage value, a current value, and a temperature value to a wired Ethernet (Ethernet). ) to the monitoring device 50 by means of an individual power control function implemented solar module diagnostic system.
5. The method of claim 1 or 4,
The Zig BEE chip 160, 350 transmits a data signal to the mobile device 60 of the adjacent manager, the individual power control function is implemented to enable real-time monitoring of the solar power generation Optical module diagnostic system.
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