KR20120065833A - System for remote self-diagnosising for recycle energy and system for remote controlling for the same - Google Patents

Abstract

PURPOSE: A system for remotely monitoring and controlling renewable energy self-diagnosing is provided to efficiently manage and maintain a photovoltaic power plant since abnormality in a generation power line can be self-diagnosed remotely. CONSTITUTION: A power plant data server(60) stores power generation data outputted through an internet TCP(Transmission Control Protocol)/IP(Internet Protocol) network(50) in real time. A supply type photovoltaic device(20) comprises a tracker(21), a photovoltaic module(22), a magnet switch(23), and a supply inverter(25). The tracker controls an installation angle of the photovoltaic module. A meteorological measuring board(30) protects the photovoltaic module while being connected to a TCP/IP switch hub(41). A remote control computer(80) controls the tracker remotely.

Description

System for Remote Self-Diagnosising for Recycle Energy and System for Remote Controlling for the Same}

The present invention relates to a photovoltaic power generation, and in particular, a tracker (solar servo control tracking device) for remotely monitoring the self-diagnostic monitoring and maintenance of each photovoltaic power generation module in a photovoltaic device and driving the photovoltaic power generation module. The present invention relates to a remote self-monitoring monitoring and remote control system for renewable energy that can be remotely controlled.

The conventional monitoring method of the photovoltaic power generation device of the photovoltaic power plant is connected to a plurality of photovoltaic power generation modules of the photovoltaic device in parallel to generate a total of 100KW generated from each of the plurality of photovoltaic power generation modules at the end of the parallel site Because it monitors the generation voltage and generation current of solar power generation module with capacity of ~ 300KW, it is not only possible to monitor the generation voltage and generation current of each solar power generation module, but also to check the detailed status of each solar power generation module. I couldn't diagnose it.

Conventional total power generation data of 100KW ~ 300KW class capacity is established by transmitting power plant communication network by RTU (Real Time Unit) and RS-422 communication method to solar power plant operator's computer. In order to monitor the amount of power generated by each of the power generation modules, several hundred meters in length require very complicated communication lines.

Due to the difficulty of construction of communication facilities and excessive installation cost, the economic burden is considerable, and maintenance of communication line is very difficult, and the communication error occurs due to noise generated during data transmission due to complicated communication line. The reliability of the power generation data is deteriorated.

In addition, conventionally, only a monitoring function required for photovoltaic power generation is provided, and power generation power lines are generated by external factors such as climate of the surrounding environment of a photovoltaic power plant, such as wind speed, wind direction, humidity, temperature, rainfall, and snowfall. There was a problem that the self-diagnosis of failure of the solar power generation module due to the typhoon and snowfall could not be performed due to failure to provide the monitoring function for the short circuit and short circuit of the power line.

On the other hand, in recent years, it is necessary to measure the amount of generation of each of the photovoltaic modules, not the total generation of the plurality of photovoltaic modules for fault diagnosis and maintenance. Although it is necessary to periodically analyze the leakage and loss of the solar cell, the function of monitoring the total power generation of the plurality of solar modules is insufficient.

In view of the above-described problems, the present invention provides a simple installation of a communication line for each of the photovoltaic power generation modules of a string unit (0.8KW to 5.0KW) of a photovoltaic device installed in a solar power station or installed in a house or a factory remotely. Remote self-diagnostic monitoring through low-cost TCP / IP communication, that is, by string unit, enables proper maintenance by performing fault diagnosis and measuring weather changes around the solar power plant. Remotely control the tracker driving the photovoltaic module properly according to the change, and monitor the renewable energy remote self-diagnosis so that it can be supplied to the neighboring houses or factories as well as the sale of the power produced to the power supplier. And to provide a remote control system.

A plurality of magnet switches connected to a plurality of photovoltaic modules and the DC generated power of the plurality of photovoltaic modules are input through the plurality of magnet switches, and the AC total power generated from the following one-type inverter is fed back. A grid type solar system including a single DC & AC measuring board to be input and a single type inverter for converting DC total generation power output from the one DC & AC measurement board into AC total generation power and outputting the power. A photovoltaic device; A power plant area network including a buffer communication device configured to receive power generation data of a plurality of photovoltaic modules output from the single DC & AC measurement board through a TCP / IP switch hub and buffer the data in real time; An Internet TCP / IP network connected to the power plant area network; A power plant data server storing monitoring data including power generation data output from the buffer communication apparatus in real time through the Internet TCP / IP network; And a plurality of solar power plants including a power plant web server for providing monitoring data through the power plant data server, and connected to each power plant web server of the plurality of solar power plants by the Internet TCP / IP network. The server performs remote monitoring of each photovoltaic power plant by monitoring data provided through the webpage of the power plant web server, and sends a remote self-diagnosis monitoring control signal to the DC & AC measuring board through the power plant web server. Renewable energy remote self-diagnosis consisting of a remote self-diagnosis monitoring and remote control computer capable of remote self-diagnosis monitoring and remote control of a solar power generation module including a self-diagnosis of power generation lines of a plurality of solar power generation modules of a solar power plant Achieved by monitoring and remote control systems.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, a plurality of trackers, a plurality of photovoltaic modules driven by the plurality of trackers, and a plurality of magnet switches connected to the plurality of photovoltaic modules And, through the plurality of magnet switches the DC generation power of the plurality of solar power modules are input

A plurality of DC & AC measuring boards to which AC generation power output from a plurality of supplied inverters is fed back, and DC generation powers output from the plurality of DC & AC measuring boards are converted into AC generation power and outputted to a power source. It further comprises a supply type photovoltaic device comprising a plurality of supply type inverter.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the remote self-diagnosis monitoring and remote control computer is directly connected to the unique IP of the Internet TCP / IP network of each solar power station monitoring transmitted from the buffer communication device Remote self-diagnosis monitoring of each photovoltaic power station is performed by receiving data, and remote self-diagnosis monitoring control signal is transmitted to DC & AC measuring board through buffer communication device. Remote self-diagnosis monitoring and remote control of the photovoltaic module further comprises a fault self-diagnosis of the power generation line.

In the system-type solar light emitting device of the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the DC & AC measuring board receives the DC generation power of each of the plurality of photovoltaic modules to measure the amount of power generated A current sensor and a voltage sensor; A microcomputer to which power generation data for each power generation amount measured from the current sensor and the voltage sensor are input; And a TCP / IP communication module for transmitting the power generation data output from the microcomputer.

In the supply type photovoltaic device of the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the DC & AC measurement board is a current sensor for measuring the amount of power generation by receiving the DC power generation of one solar power module; A voltage sensor; A microcomputer to which one generation data for one generation amount measured from the current sensor and the voltage sensor is input; And a TCP / IP communication module transmitting one generation data output from the microcomputer.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the solar power plant is a wind speed sensor, wind direction sensor, solar radiation sensor, temperature sensor, rainfall sensor and snowfall sensor for measuring the climate change around the solar power plant and these It further includes a weather measurement board for receiving weather data measured by the sensor, the weather measurement board

It is connected to the TCP / IP switch hub and transmits the weather data, which is monitoring data, in real time through the buffer communication device and the Internet TCP / IP network, and stores it in the power plant data server connected to the power plant web server. The remote self-monitoring monitoring and remote control computer The tracker may be remotely controlled by monitoring the weather data through a web page of a web server or by receiving and monitoring the tracker through the buffer communication apparatus and the Internet TCP / IP network.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the power plant data server stores the photovoltaic module drive data which is monitoring data transmitted from a tracker connected to a TCP / IP switch hub, the remote self-diagnosis The monitoring and remote control computer is characterized in that the remote control the tracker through the monitoring of the photovoltaic module drive data.

In addition, an object of the present invention is a tracker, a photovoltaic module driven by the tracker, a magnet switch connected to the photovoltaic module, and the DC generation power of the photovoltaic module through the magnet switch is input Stand-alone solar including a DC & AC measuring board fed back the AC generated power output from the stand-alone inverter, and a stand-alone inverter that converts the DC generated power output from the DC & AC measuring board into AC generated power and outputs the power. A photovoltaic device; An Internet TCP / IP network connected to the DC & AC measurement board; And remotely connect the self-contained photovoltaic device through power generation data, which is monitoring data of a photovoltaic module provided by the DC & AC measurement board by directly connecting to a unique IP of the DC & AC measurement board through the Internet TCP / IP network. While performing a diagnostic monitoring, by transmitting a remote self-diagnosis monitoring control signal to the DC & AC measuring board of the solar power generation module including a failure self-diagnosis of the power generation line of the solar power generation module of the stand-alone photovoltaic device It is achieved by remote self-diagnosis monitoring and remote control system of renewable energy, consisting of remote self-diagnosis monitoring and remote control computer, which enables remote self-monitoring monitoring and remote control.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the DC & AC measuring board includes a current sensor and a voltage sensor for measuring the amount of power generation by receiving the DC generation power of each of the solar power generation module; A microcomputer to which power generation data measured from a current sensor and a voltage sensor are input; And a TCP / IP communication module transmitting power generation data output from the microcomputer.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, a wind speed sensor, a wind direction sensor, a solar radiation sensor, a temperature sensor, a rainfall sensor and a snow quantity sensor and these sensors for measuring the climate change of the installation area of the stand-alone photovoltaic device The weather measurement board further comprises a weather measurement board for receiving weather data measured by the remote self-monitoring and remote monitoring of the weather data, which is monitoring data, connected to the Internet TCP / IP network through the Internet TCP / IP network. And transmitting to a control computer, wherein the remote self-diagnostic monitoring and remote control computer monitors the received weather data to remotely control the tracker.

In the renewable energy remote self-diagnosis monitoring and remote control system of the present invention, the tracker transmits the photovoltaic module drive data, which is monitoring data, to the remote self-diagnosis monitoring and remote control computer, and the remote self-diagnosis monitoring and remote control computer. Characterized in that the remote control the tracker through the monitoring of the received PV module drive data.

By the technical configuration of the present invention described above

1. Using the DC & AC measuring board of the solar power plant with the grid-type solar generator and the supply-type solar generator and the independent solar generator for home or factory self-generation

First, the power generation management and maintenance can be easily performed by remotely monitoring the DC & AC power generation voltage / current information of each solar power generation module in string units of 0.8KW ~ 5.0KW capacity of each of the plurality of solar power generation modules. And

Second, by controlling the magnet switch off, measuring the generated power (generation voltage and current) of each of the photovoltaic modules, it is possible to self-diagnose the abnormality of the generated power line remotely. Can be managed and maintained.

2. TCP / IP communication with DC & AC measuring boards, weather measuring boards and trackers can be carried out by establishing a network of power plant area with TCP / IP communication network, so communication line is simple and installation cost is reduced.

3. The climate environment around the solar power plant can be measured using wind speed sensor, wind direction sensor, insolation sensor, temperature sensor, rainfall sensor and snowfall sensor to monitor the climate environment of the solar power plant. By controlling the tracker, it is possible to prevent damage to the tracker from efficient solar power and strong winds or snow.

4. By supplying photovoltaic power generation as well as grid-type photovoltaic power generation for sale as a commercial power source to power suppliers such as KEPCO, it is possible to supply electricity directly to neighboring houses or factories at low cost.

5. Stand-alone photovoltaic power generation by installing a stand-alone photovoltaic device in a factory or house and performing the management of remote self-diagnosis monitoring and remote control by remote self-diagnosis monitoring and operation program of a remote control computer. The development status of the device can be managed and maintained in real time.

1 is a configuration diagram of a first embodiment of a remote self-monitoring monitoring and remote control system of a grid type and a supply type photovoltaic device as a first embodiment of the present invention.
2 is a block diagram of a DC & AC measuring board of the present invention.
3 is a configuration diagram of a remote self-diagnosis monitoring and remote control system of a stand-alone photovoltaic device according to a second embodiment of the present invention.

The present invention provides a solar power generation system of a first embodiment including a grid type solar power device sold to a power supplier and a supply type solar power device directly supplied to a surrounding house or factory. The present invention relates to a renewable energy remote self-diagnosis monitoring and remote control system for a stand-alone photovoltaic device of the second embodiment.

In addition, in the description of the embodiment of the present invention, the renewable energy will be described taking as an example that photovoltaic power generation using sunlight.

The above-described grid type, supply type and stand-alone photovoltaic devices generate 4 to 16 photovoltaic cells and produce photovoltaic power from a photovoltaic module that generates power by outputting them in string units (0.8KW ~ 5.0KW). Done.

The grid-type photovoltaic power generation device of the photovoltaic power plant of the first embodiment is a medium-capacity power generation unit of 100KW or more, and the supply-type photovoltaic power generation device is a small capacity generation unit of 100KW or less, which is supported by a web server of the photovoltaic power station. Directly access the unique IP of each solar power plant of the Internet TCP / IP network through the page or through remote self-diagnosis monitoring and remote control computer operation program. 5.0KW), that is, failure self-diagnosis and maintenance are possible by performing remote self-diagnosis monitoring and remote control of each solar power module.

On the other hand, as a second embodiment, a stand-alone photovoltaic device installed in a factory or a house for self-power generation is a small-capacity power generation unit of 100 kW or less. It is possible to support A / S by performing remote self-diagnosis monitoring and remote control of power generation status by connecting to unique IP of TCP / IP communication module embedded in the board.

Specific technical configurations and operations of the first and second embodiments of the present invention described above will be described below in detail with reference to the accompanying drawings.

[First Embodiment]

1 is a configuration diagram of a first embodiment of a remote self-diagnosis monitoring and remote control system of a grid type and a supply type photovoltaic device of the present invention.

The present invention relates to a remote power generation monitoring and tracker of a grid-type power generation line of a grid-type photovoltaic device and a supply-type power line of a supply-type photovoltaic device as monitoring data received from the photovoltaic power plant and the solar power plant. It consists of remote self-diagnosis monitoring and remote control computer for remote control.

The solar power plant of the present invention comprises a plurality of trackers, a plurality of photovoltaic power generation modules, a plurality of magnet switches, a DC & AC measuring board, an inverter and a grid-type photovoltaic power generation device; Power plant area network; The Internet TCP / IP network; Power plant data server; And a power plant web server.

The grid-type photovoltaic device 10 includes a plurality of trackers 11, a plurality of photovoltaic modules 12 having a medium-large power generation capacity of 100 KW or more driven by the plurality of trackers, and the plurality of photovoltaic cells. A plurality of magnet switches 13 connected to a power generation module and the DC generation power of the plurality of solar power generation modules are input through the plurality of magnet switches, and the AC total generation power output from the following grid type inverter 15 is fed back. It includes a DC and AC measuring board 14 to be input and a grid-type inverter (15) for converting the total power of 100KW or more output from the DC & AC measuring board to AC total generating power to output to a power source, Photovoltaic power generation generated by a grid-generated power line consisting of a plurality of trackers, a plurality of solar power modules, a plurality of magnet switches, a DC & AC measuring board, and a grid inverter To be sold as a commercial power supply to the power supplier.

The supply type photovoltaic device 20 includes a plurality of trackers 21, a plurality of photovoltaic modules 22 having a small power generation capacity of 100 KW or less driven by the plurality of trackers, and the plurality of aspects. AC generation power of a plurality of magnet switches 23 connected to a photovoltaic module and the plurality of solar power modules are input through the plurality of magnet switches and output from the plurality of supply inverters 25 below. The plurality of DC & AC measuring boards 24 to be fed back and the plurality of supplied inverters 25 for converting DC generated power of 100 KW or less output from the DC & AC measuring board into AC generating power and outputting the power to the power source 25 Thus, it is generated by a supplied power generation line consisting of a plurality of trackers, a plurality of photovoltaic modules, a plurality of magnet switches, a plurality of DC & AC measuring boards, and a plurality of supplied inverters. Control the production of solar photovoltaic power supply directly to the surrounding houses or factories.

The power plant area network 40 receives power generation data of the plurality of photovoltaic modules 12 and 22 output from the DC & AC measurement boards 14 and 24 through the TCP / IP switch hub 41. And a buffer communication device 42 for buffering in real time. The power plant data server 60 stores monitoring data including power generation data output in real time from the buffer communication device 42 through the Internet TCP / IP network 50. The power plant web server 70 provides monitoring data through a web page through the power plant data server 60.

As shown in FIG. 2, the DC & AC measuring boards 14 and 24 of the grid-type photovoltaic device 10 and the supply-type photovoltaic device 20 are DC currents and DC voltages thereof. The current sensor and the voltage sensor for measuring the voltage, the microcomputer and the TCP / IP communication module are the same, but the single DC & AC measuring board 14 of the grid-type photovoltaic device 10 is provided by a plurality of magnet switches 13. A plurality of photovoltaic modules 12 are connected, and one photovoltaic module is connected to one DC & AC measuring board 24 of the supply type photovoltaic device 20 by one magnet switch 23. (22) are connected, and the functions of the DC & AC measuring boards 14 and 24 are different.

That is, the current sensor and the voltage sensor of the DC & AC measuring board 14 of the grid-type photovoltaic device 10 receives the DC generated power of each of the plurality of photovoltaic modules 12 and measures the amount of each generated power. The microcomputer inputs power generation data measured from the current sensor and the voltage sensor, and the TCP / IP communication module transmits the power generation data output from the microcomputer.

However, the current sensor and the voltage sensor of the DC & AC measuring board 24 of the supplied photovoltaic device 20 measure the amount of generation by receiving the DC generation power of one solar power module, and the current sensor and voltage to the microcomputer. One generation data for one generation amount measured from the sensor is input, and the TCP / IP communication module transmits one generation data output from the microcomputer.

The magnet switches 13 and 23 are turned off when the self-diagnosis of the grid-type and supply-type power generation lines is needed, and the " 0 " It monitors short circuit and short circuit status by "zero" status.

Meanwhile, the DC & AC measuring boards 14 and 24 measure and receive feedback of AC generation power, that is, AC generation current and voltage, which are converted by the grid type and supply type inverters 15 and 25. The inverter 15 receives feedback of the total AC generation power, and the supplied inverter 25 receives feedback of the individual AC generation power.

The trackers 11 and 21 are solar servo-controlled tracking devices for controlling the installation angles of the photovoltaic modules 12 and 22, and are connected to the TCP / IP switch hub 41 to provide monitoring data. The power generation module drive data is transmitted to and stored in the power plant data server 60.

The photovoltaic power station further includes a weather measurement board 30, which is connected to the TCP / IP switch hub 41 to protect the photovoltaic modules 12 and 22 from natural disasters. Wind speed sensor 31, wind direction sensor 32, insolation sensor 33, temperature sensor 34, rainfall sensor 35 and snowfall sensor 36, which are installed around the solar power plant to measure climate change for the purpose of Receiving monitoring data, ie, wind speed, wind direction, solar radiation, temperature, rainfall, snowfall data, and the power plant data server 60 in real time through the buffer communication device 42 and the Internet TCP / IP network 50. ) To save.

According to the above description, the monitoring data provided by the photovoltaic power plant includes power generation data of the photovoltaic modules 12 and 22, weather data provided by the weather measurement board 30, and tracker 11 and 21. Contains PV module drive data. The photovoltaic module drive data includes drive motor phase current and drive motor rotation angle information of the tracker.

In addition, the weather measurement board 30 and the tracker 11 and 21 have a built-in microcomputer and TCP / IP communication module for TCP / IP communication similarly to the DC & AC measurement boards 14 and 24.

The remote self-diagnosis monitoring and remote control computer 80 communicating with the above-described photovoltaic power plant and the Internet TCP / IP network 50 is supported by the power plant web server 70 through the Internet TCP / IP network 50. Power generation data, weather data and photovoltaic power generation as monitoring data by the buffer communication device 42 by directly connecting to the unique IP of the Internet TCP / IP network 50 of each solar power plant by a page or by its own operation program. Receives and monitors the module drive data, and determines whether there is an abnormality, such as the amount of power generation of the grid-type and supply-type photovoltaic devices 10 and 20, based on the received monitoring data. Turn off the magnet switch (13) and (23) of the line to open the power generation line, and check that the generated voltage and the generation current on the DC & AC power generation line are "0 (zero)". The self-diagnostic monitoring may be performed, and the self-diagnosis and maintenance of the fault may be performed by performing remote control of the trackers 11 and 21.

In addition, the remote self-diagnosis monitoring and remote control computer 80 is a DC & AC measuring board that receives feedback and measures the total and individual AC generation current and voltage that are fully converted by the grid type and supply type inverters 15 and 25. The measured total and individual AC power generation data of (14) and (24) can be monitored by connecting to the power plant web server 70 or the buffer communication device 42. Therefore, the power generation data is of two types: DC power generation data and AC power generation data.

Here, the remote self-diagnosis monitoring and remote control computer 80 is connected to the web page of each power plant web server 70 remote self-diagnosis monitoring and remote control method by the general manager or plant owner maintenance and maintenance of the solar power plant It is built so that each solar light by the operation program of the remote self-monitoring monitoring and remote control computer 80

Remote self-diagnosis monitoring and remote control by directly accessing the unique IP of the Internet TCP / IP network 50 of the power plant is designed to maintain and maintain the solar power plant by a management specialist of a professional management company. That is, since each power station has a unique IP, the remote self-diagnostic monitoring and remote control computer 80 is directly connected to the unique IP, it is possible to monitor and remotely control the remote self-diagnosis of each power plant.

The general manager or the plant owner connects to each plant web server 70 of the plurality of solar power plants by the Internet TCP / IP network 50 by using the remote self-diagnosis monitoring and remote control computer 80. 60 performs remote self-diagnosis monitoring of each power plant by the monitoring data provided by the webpage of the power plant web server 80, while the DC & AC measurement board 14 is carried out through the power plant web server 70. Remote self-diagnosis monitoring control signal is transmitted to 24 so that fault self-diagnosis such as short-circuit and short-circuit of the grid-type and supply-type power generation power lines of the plurality of photovoltaic modules 12 and 22 of each photovoltaic power plant is performed. do.

The management specialist of the professional management company directly connects to the unique IP of each solar power plant through the Internet TCP / IP network 50 using the remote self-diagnosis monitoring and operation program of the remote control computer 80 and the buffer communication device (42). Remote self-diagnosis monitoring of each solar power station is performed by receiving the monitoring data transmitted from the power supply), and the remote self-diagnosis monitoring control signal is transmitted to the DC & AC measuring boards 14 and 24 through the buffer communication device 42. Transmitters are self-diagnosing faults such as short circuits and short circuits in the grid-type and supply-type power generation lines of the plurality of photovoltaic modules of each photovoltaic power plant.

In addition, the remote self-diagnosis monitoring and remote control computer 80 monitors the weather data of the weather measurement board 30 through the web page of the power plant web server 70 to remotely control or operate the trackers 11 and 21. The trackers 11 and 21 are remotely controlled by receiving and monitoring through the buffer communication device 42 and the Internet TCP / IP network 50 by a program.

That is, the remote control signal is transmitted to the trackers 11 and 21 through the monitoring of the temperature and the solar radiation data to remotely drive the solar power module to the position where the solar radiation is the highest, and the strong wind is monitored through the monitoring of the wind speed and the wind direction data. In order to prevent damage to the solar power module in case of blowing, the remote control signal can be sent to the tracker to remotely drive the solar module to a horizontal position if the wind direction is horizontal. In case of heavy rain or snow through monitoring, the remote control signal can be sent to the tracker to prevent damage to the photovoltaic module.

Each of the DC & AC measuring boards 14 and 24, and the tracker 11 and 21 for driving control of the installation angle of the meteorological measuring board 30 for measuring the climate environment around the solar power plant and the photovoltaic module. The power generation data generated from the PV modules 12 and 22 connected to the TCP / IP switch hub 41 connected to the buffer communication device 42 of the power plant area network 40 is the DC & AC measurement board 14. 24, the weather data measured by the plurality of sensors is the weather measurement board 30, the drive data of the photovoltaic module is the TCP / IP switch hub by TCP / IP communication in the tracker (11) (21) The buffer communication device 42 is transmitted to the buffer communication device 42 via the 41, and the buffer communication device 42 buffers the power generation data, the weather data, and the driving data, which are monitoring data, in real time to the Internet TCP / IP network.

50 is stored in the power plant data server 60 connected to the power plant web server 70 of each solar power plant.

The remote self-diagnosis monitoring and remote control computer 80 is connected to the power plant web server 70 through the Internet TCP / IP network 50 or the buffer communication device 42 by an operation program to generate the power generation data and the weather. By monitoring the data and the driving data, self-diagnostic monitoring and remote control of the trackers 11 and 21 of the grid-type and supplied generation power lines of each photovoltaic power plant are enabled. That is, it becomes possible to operate each solar power plant unattended. That is, the remote self-diagnosis for the self-diagnosis of the grid-type and supply-type power generation lines by the remote self-monitoring monitoring and remote control computer 80 through the Internet TCP / IP network 50 and the power plant area network 40 Send diagnostic monitoring control signal

When the control signal is received from the DC & AC measuring boards 14 and 24, the magnet switch 13 in which the DC & AC measuring boards 14 and 24 are connected to the photovoltaic modules 12 and 22. (23) is turned OFF to measure the voltage and current of the grid-type and supply-type power generation lines with the open-circuit of the grid-type and supply-type generation power lines, and to periodically short-circuit and short-circuit the power generation line. By measuring and analyzing, it is possible to self-diagnose the abnormality of grid type and supply type power lines.

As described above, the DC & AC measuring boards 14 and 24 each have a power generation capacity of 0.8KW to 5.0KW for each solar power module for efficient and economical operation management of the solar power plant. (12) and (22) measure DC generated current and generated voltage, and convert this DC generated current and generated voltage into AC generated current and generated voltage through grid inverter 15 and supplied inverter 25. In addition to the conversion provided by the measured AC generation current and voltage. This measured signal is provided to the remote self-diagnostic monitoring and remote control computer 80 via TCP / IP communication and the Internet TCP / IP network 50 using the plant regional network 40.

As such, the remote self-diagnosis monitoring and remote control computer 80 includes the DC generation current and generation voltage of the grid-type and supply-type power generation systems of the solar power plant and the AC generation current of the grid-type and supply-type inverters 15 and 25. The generation voltage can be received and analyzed, and the off-grid power supply lines can be turned off to monitor the abnormality of the power generation line remotely.

The remote self-diagnostic monitoring and remote control computer 80 can monitor the operation state of the trackers 11 and 21 by TCP / IP communication, and can drive control remotely.

In addition, the remote self-diagnosis monitoring and remote control computer 80 is measured by the wind speed sensor 31, wind direction sensor 32, solar radiation sensor 33, temperature sensor 34, rainfall sensor 35, snowfall sensor 35 Receiving a weather data from the weather measurement board 30 can monitor the climate environment to protect the solar power plant natural disasters.

[Second Embodiment]

3 is a configuration diagram of a second embodiment of a remote self-diagnosis monitoring and remote control system of a stand-alone photovoltaic device of the present invention.

In the second embodiment of the present invention, the same reference numerals as those of the first embodiment are used for the remaining components except for the stand-alone photovoltaic device 200.

The second embodiment of the present invention is a stand-alone photovoltaic device 210 of a small capacity generating unit of 100KW or less installed in each house or factory for solar self-power generation, and in the first embodiment, the supply type photovoltaic device ( 20, power plant data server 60, power plant web server 70 and power plant area network 40 are omitted, weather measurement board 30, tracker 210 and DC & AC measuring board ( 240 is directly connected to the Internet TCP / IP network 50.

That is, the stand-alone photovoltaic device 200, the weather measurement board 30, and the plurality of sensors 31, 32, 33, 34, 35, and 36 of the second embodiment are the supply type of the first embodiment. The components of the photovoltaic device 20, the weather measurement board 30, and the plurality of sensors 31, 32, 33, 34, 35, and 36 are the same.

However, in the first embodiment, the tracker 21, the photovoltaic module 22, the magnet switch 23, the DC & AC measuring board 24, and the supply inverter 25 are installed in each solar power plant. The plurality of photovoltaic devices consisting of the supply is defined as a photovoltaic device, the second embodiment is a tracker 210, the state is installed in the factory or house for self-powered solar power generation

The conceptual difference is that one of the photovoltaic devices consisting of the photovoltaic power generation module 220, the magnet switch 230, the DC & AC measuring board 240, the supply inverter 250 is defined as a stand-alone photovoltaic device. have.

In addition, the DC & AC measurement board 230, the weather measurement board 30 and the tracker 210 is directly connected to the Internet TCP / IP network 50 to communicate with the remote self-diagnostic monitoring and remote control computer 80. There is a difference in points.

Therefore, in describing the second embodiment of the present invention, the basic components and remote self-monitoring monitoring and remote control computer 80, DC & AC measurement board 240, weather measurement board 30 and tracker 210 Only the communication relationship of) will be described, and the detailed description of each component and its function will be referred to the first embodiment described above.

A second embodiment of the present invention is a stand-alone solar light including a tracker 210, a photovoltaic module 220, a magnet switch 230, a DC & AC measuring board 240 and a stand-alone inverter 250 A generator 200; An Internet TCP / IP network 50 connected to the DC & AC measurement board 240; And a remote self-diagnostic monitoring and remote control computer 80 connected to the Internet TCP / IP network 50. The tracker 210 is an Internet TCP / IP network for remote self-diagnosis monitoring and remote control computer 80 for photovoltaic power generation module driving data, which is monitoring data of a photovoltaic servo control tracking device for driving the photovoltaic power generation module 220. Song over 50

In addition, the photovoltaic module 220 is 4 to 16 photovoltaic cells for generating an output of a string unit (0.8KW ~ 5.0KW), the DC & AC measuring board 240 is the magnet switch ( 230 receives the DC generation power from the photovoltaic module 220 and measures the generated power generation data, which is the measured monitoring data, to the remote self-diagnosis monitoring and remote control computer 80, the Internet TCP / IP network 50. The magnetic switch 230 is controlled by the remote self-diagnosis monitoring and remote control computer 80 for the self-diagnosis of the power generation line, the stand-alone inverter 250 is

The DC generation power output from the DC & AC measuring board 240 is converted into AC generation power and output as a power source to provide to the house or factory.

On the other hand, the voltage and current of the AC generation power output from the stand-alone inverter 250 is fed back to the DC & AC measuring board 240 and measured. The remote self-monitoring monitoring and remote control computer 80 is directly connected to the unique IP of the DC & AC measurement board 240 through the Internet TCP / IP network 50 by its own operation program DC & AC measurement board 240 Remote self-diagnostic monitoring of the stand-alone photovoltaic device 200 through the monitoring data of the photovoltaic module 220 provided by the), while remote self-diagnostic monitoring control on the DC & AC measuring board 240 Remote self-diagnosis monitoring and remote control of the photovoltaic module 220 including a self-diagnosis of the power generation line of the photovoltaic module 220 of the stand-alone photovoltaic device 200 by transmitting a signal is possible. .

In the second embodiment of the present invention, the wind speed sensor 31, the wind direction sensor 32, the solar radiation sensor 33, and the temperature for measuring climate change in a factory or residential area in which the independent solar power generator 200 is installed are provided. The sensor 34, the rainfall sensor 35, the snowfall sensor 36, and a weather measurement board 30 for receiving the weather data measured from these sensors are further included.

The weather measurement board 30 is connected to the Internet TCP / IP network 50 and transmits weather data, which is monitoring data, to the remote self-diagnosis monitoring and remote control computer 80 through the Internet TCP / IP network 50. . The remote self-diagnosis monitoring and remote control computer 80 is a tracker 21 through the monitoring of the received weather data or photovoltaic module drive data.

Remote control of 0).

According to the above description, the stand-alone photovoltaic device 200 installed in a factory or a house generates a small capacity of 100KW or less through a photovoltaic module and outputs the DC & AC measurement board 240 through a magnet switch, DC & AC measuring board 240 measures the DC generated power and outputs to the stand-alone inverter. The standalone inverter converts DC power into AC power to provide power to a factory or a house.

At this time, the DC generation power measured by the DC & AC measurement board 240 is transmitted to the remote self-monitoring monitoring and remote control computer 80 through the Internet TCP / IP network 50, and is currently driven by the tracker Drive data of the current state of the photovoltaic module, that is, drive motor phase current and rotation angle information, are also transmitted to the remote self-diagnosis monitoring and remote control computer 80 through the Internet TCP / IP network 50.

In addition, the weather measurement board 30 that receives the weather data measured by the plurality of sensors in real time also transmits the weather data to the remote self-monitoring monitoring and remote control computer 80 through the Internet TCP / IP network 50. Here, the weather data is wind speed, wind direction, insolation, temperature, rainfall, and snowfall data. The meteorological measurement board 30 transmits the respective data to the remote self-diagnosis monitoring and remote control computer 80.

In the situation where power is supplied to a plant or a house by such a stand-alone photovoltaic device, the management specialist of a professional management company can remotely diagnose and monitor the power generation data, weather data, and photovoltaic module driving data. If there is a problem with power generation data while checking through the operation program of (80), access the unique IP of the TCP / IP communication module embedded in the DC & AC measurement board 240 through the Internet TCP / IP network 50. By sending a remote self-diagnosis monitoring control signal to the DC & AC measuring board 240 to cause the DC & AC measuring board 240 to turn off the magnet switch 230, the DC & AC generating power in the state where the generating power line is opened. Self-diagnostic monitoring of short circuit and short circuit status can be made by confirming that the generated voltage and generated current on the line are "zero".

And by monitoring the weather data, especially temperature and insolation data, by sending a remote control signal to the tracker 210, the solar power module can be remotely driven to the position of the highest insolation, strong wind through the monitoring of wind speed and wind direction data In order to prevent damage to the solar power module in case of blowing, the remote control signal can be sent to the tracker to remotely drive the solar module to a horizontal position if the wind direction is horizontal. In the case of heavy rain or snow through monitoring, in order to prevent damage to the photovoltaic module, transmitting a remote control signal to the tracker and remotely driving it to an appropriate position, for example, a vertical position, is the same as the first embodiment. As described above, in the second embodiment of the present invention, a professional manager can remotely perform an A / S for management and maintenance of a stand-alone photovoltaic device installed in a factory or a house.

According to the present invention described above, it is difficult to diagnose the failure of each photovoltaic module due to the conventional monitoring of the total power generation of the photovoltaic module. Controlled by DC & IP of each solar power module of string unit of 0.8KW ~ 5.0KW capacity to remote self-monitoring monitoring and remote control computer 80 through power plant local area network 40 and Internet TCP / IP network 40 Since power generation data on the amount of generation of AC generation voltage and generation current is transmitted, the generation amount of each solar power generation module can be monitored in a string unit so that each solar power generation module 12 (22) can be self-diagnosed. Can be.

That is, the present invention provides the Internet network TCP / IP 50 and the buffer communication device 42 and the TCP / IP switch hub in the remote self-diagnosis monitoring and remote control computer 80 for troubleshooting and maintenance of the solar power plant. When the remote self-diagnostic monitoring control signal is transmitted through the power plant area network 40 including the 41, the remote self-diagnostic monitoring control signal is received from the DC & AC measuring boards 14 and 24 to provide a plurality of solar power generation modules. (12) In the state where the plurality of magnet switches (13) and (23) connected to (22) are turned off and the generation power line is opened, the short circuit and short circuit of the generation power line are measured by measuring the voltage and current of the generation power line. By periodically measuring and analyzing the status, it is possible to self-diagnose the abnormality of the power line.

In addition, the conventional RTU (Real Time Unit) and RS-422 communication method is very complicated communication line when monitoring the photovoltaic module by string unit, and thus, the installation cost of excessive communication line and the maintenance of communication line Although it was difficult, the present invention monitors a plurality of solar modules in string units, respectively, TCP / IP switch hub 41 and DC & AC measuring boards (14) (24) and Internet TCP / Establish a TCP / IP communication network with the remote self-monitoring monitoring and remote control computer 80 using the IP network 50, and also establish a TCP / IP communication network with the trackers 11, 21 and the weather measurement board 30. By performing TCP / IP communication, communication lines become very simple, noise is not introduced during transmission of string-based power generation data, installation costs are reduced to 1/20 or less, and maintenance of communication lines is easy.

In addition, the present invention could not measure the climate of the surrounding environment of the conventional solar power plant, but did not respond quickly to the problem of solar power according to the climate, the present invention wind speed sensor 31, wind direction sensor 32, solar radiation sensor 33, temperature Climate change around the solar power plant using the sensor 34, rainfall sensor 35, and snow cover 36 is measured by the weather measurement board 30. And solar power plant operators (general managers or managers of power plant owners or specialist managers) to climate change quickly by sending them to the remote self-monitoring monitoring and remote control computer 80 in real time through the Internet TCP / IP network 40). Can cope.

In order to prevent damage caused by strong wind or snow, the remote self-diagnosis monitoring and remote control computer 80 performs the power plant local network (40) through the Internet TCP / IP network 50 in the event of wind speed or heavy snow exceeding a reference set value. When the position of the photovoltaic module is strong by remotely controlling the trackers 11 and 21 connected to the TCP / IP switch hub 41 of

For example, when it is horizontal or snowing, for example, it can be properly controlled to prevent damage to the photovoltaic module due to strong winds or heavy snow.

10: grid type solar power generation device 20: supply type solar power generation device
200: standalone solar power device 11,21,210: tracker
12,22,220: PV module 13,23,230: magnet switch
14,24,240: DC & AC measuring board 15: Grid inverter
25: Supply Inverter 250: Standalone Inverter
30: weather measurement board 31: wind speed sensor
32: wind direction sensor 33: solar radiation sensor
34: temperature sensor 35: rainfall sensor
36: snowfall sensor 40: power plant area network
41: TCP / IP Switch Hub 42: Buffer Communication Device
50: Internet TCP / IP network 60: power plant data server
70: power plant web server
80: remote self-diagnosis monitoring and remote control computer

Claims (5)

A power plant data server in which monitoring data including an internet TCP / IP network, power generation data output from the buffer communication apparatus in real time is stored through the internet TCP / IP network, and a power plant providing monitoring data through the power plant data server. A plurality of photovoltaic power plants including a web server, and monitoring of the power plant data server provided through a web page of a power plant web server by accessing each power plant web server of the plurality of photovoltaic power plants by the Internet TCP / IP network; In the renewable energy remote self-diagnosis monitoring and remote control system consisting of a remote self-diagnosis monitoring and remote control computer for performing remote self-diagnosis monitoring of each photovoltaic power plant by data,
The plurality of solar power plants include a plurality of trackers, a plurality of photovoltaic modules driven by the plurality of trackers, a plurality of magnet switches connected to the plurality of photovoltaic modules, and the plurality of magnet switches. DC generation power of the plurality of photovoltaic modules is input and one DC & AC measuring board to which the total AC power generated from the following one of the grid-type inverter is fed back, and output from the one DC & AC measuring board A grid-type photovoltaic device including a single grid-type inverter that converts DC total generation power into AC total generation power and outputs the power to a power source;
A power plant area network including a buffer communication device connected to the Internet TCP / IP network to receive power generation data of a plurality of photovoltaic modules output from the DC & AC measurement board through a TCP / IP switch hub and buffer them in real time. More,
The DC & AC measuring board includes a current sensor and a voltage sensor for receiving the DC generated power of each of the plurality of photovoltaic modules and measuring the amount of each generated power;
A microcomputer to which power generation data for each power generation amount measured from the current sensor and the voltage sensor are input; And
It includes a TCP / IP communication module for transmitting the power generation data output from the microcomputer, the solar power plant wind speed sensor, wind direction sensor, solar radiation sensor, temperature sensor, rainfall sensor for measuring the climate change around the solar power plant And a weather measurement board for receiving snowfall sensors and weather data measured by these sensors,
The meteorological measurement board is connected to a TCP / IP switch hub and transmits the weather data, which is monitoring data, in real time through a buffer communication device and an Internet TCP / IP network, and stores the weather data in a power plant data server connected to a power plant web server. The PV module driving data, which is the monitoring data transmitted from the tracker connected to the TCP / IP switch hub, is stored, and the remote self-diagnosis monitoring and remote control computer remotely diagnoses the DC & AC measurement board through the power plant web server. By sending a monitoring control signal, the DC & AC measuring board turns off the magnet switch according to the remote self-diagnosis monitoring control signal to perform self-diagnosis of the power generation line of the plurality of photovoltaic modules of each solar power plant. The weather data is monitored through a web page of a web server to obtain a tracker. Remote control of the tracker by controlling or by receiving and monitoring through the buffer communication device and the Internet TCP / IP network, and remote self-diagnosis monitoring of the photovoltaic module for remote control of the tracker through monitoring of the PV module drive data. And self-monitoring and remote control system for renewable energy remote, characterized in that the remote control is possible. The method according to claim 1,
A plurality of trackers, a plurality of photovoltaic modules driven by the plurality of trackers, a plurality of magnet switches connected to the plurality of photovoltaic modules, and the plurality of photovoltaic modules through the plurality of magnet switches AC generation power is inputted, and a plurality of DC & AC measurement boards to which the AC generation power output from the plurality of supplied inverters is fed back, and the DC generation power output from the plurality of DC & AC measurement boards is AC generation power. Further comprising a supply type photovoltaic device comprising a plurality of supply type inverter for outputting power by converting power to
The DC & AC measuring board includes a current sensor and a voltage sensor for measuring the amount of power generation by receiving the DC generation power of one solar power generation module; A microcomputer to which one generation data for one generation amount measured from the current sensor and the voltage sensor is input; And a TCP / IP communication module for transmitting one generation data outputted from the microcomputer. The method according to claim 1,
The remote self-diagnosis monitoring and remote control computer directly connects to the unique IP of the Internet TCP / IP network of each solar power station and receives monitoring data transmitted from the buffer communication device to perform remote self-diagnosis monitoring of each solar power station. On the other hand, by transmitting a remote self-diagnosis monitoring control signal to the DC & AC measuring board through the buffer communication device of the photovoltaic power generation module further comprising a fault self-diagnosis of the power generation line of the plurality of photovoltaic power generation modules of each solar power plant. Remote self-diagnosis monitoring and remote control system, characterized in that the remote self-diagnosis monitoring and remote control. The method according to claim 2,
The remote self-diagnosis monitoring and remote control computer directly connects to the unique IP of the Internet TCP / IP network of each solar power station to receive monitoring data transmitted from the buffer communication device to perform remote self-diagnosis monitoring of each solar power station. On the other hand, by transmitting a remote self-diagnosis monitoring control signal to the DC & AC measuring board through the buffer communication device of the photovoltaic power generation module further comprising a fault self-diagnosis of the power generation line of the plurality of photovoltaic power generation modules of each solar power plant. Remote self-diagnosis monitoring and remote control system, characterized in that the remote self-diagnosis monitoring and remote control. A tracker, a solar power module driven by the tracker, a magnet switch connected to the solar power module,
The DC generation power of the solar power generation module is input through the magnet switch, and the DC generation power supplied from the following independent inverter is fed back to the DC & AC measurement board, and the DC generation power output from the DC & AC measurement board. A stand-alone solar power generation device including a stand-alone inverter for converting power into AC generation power and outputting the power to a power source;
An Internet TCP / IP network connected to the DC & AC measurement board;
Remote self-diagnosis monitoring of the photovoltaic device through the power generation data, which is the monitoring data of the photovoltaic module provided by the DC & AC measuring board, by directly connecting to the unique IP of the DC & AC measuring board through the Internet TCP / IP network. Meanwhile, a remote self-diagnostic monitoring control signal is transmitted to the DC & AC measuring board, and the DC & AC measuring board turns off the magnet switch by the remote self-diagnostic monitoring control signal. Remote self-diagnosis monitoring and remote control computer capable of remote self-diagnosis monitoring and remote control of the photovoltaic module including failure self-diagnosis of the power generation line of the photovoltaic power generation module; And
It consists of wind speed sensor, wind direction sensor, insolation sensor, temperature sensor, rainfall sensor, snow cover sensor and weather measurement board to receive weather data measured by these sensors. ,
The DC & AC measuring board includes a current sensor and a voltage sensor for measuring the amount of power generation by receiving the DC generation power of the solar power module; A microcomputer to which power generation data measured from a current sensor and a voltage sensor are input; And a TCP / IP communication module transmitting power generation data output from the microcomputer,
The weather measurement board and the tracker are connected to the Internet TCP / IP network, and transmit the weather data and the photovoltaic power generation module driving data, respectively, to the remote self-monitoring monitoring and remote control computer through the Internet TCP / IP network.
The remote self-diagnosis monitoring and remote control computer is a renewable energy remote self-diagnosis monitoring and remote control system, characterized in that for remote control of the tracker by monitoring the received weather data and photovoltaic module drive data.

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