KR101148022B1 - System of remotely controlling efficiency enhancement equipment for solar photovoltaic power facilities - Google Patents

Abstract

The present invention relates to a remote control system of a photovoltaic facility efficiency improving apparatus. The remote control system of the solar power plant efficiency improving apparatus of the present invention, by maintaining the efficiency of the solar module by spraying the coolant stored in the storage tank to the solar module through the coolant injection means via a pump and a valve A control system for a photovoltaic facility efficiency improving apparatus, comprising: a controller for controlling the operation of the pump and the valve; And it characterized in that it comprises an integrated management server for controlling the controller remotely using wired or wireless communication.
According to the remote control system of the solar power plant efficiency improving apparatus according to the present invention, it is possible to efficiently control the solar power plant efficiency improving apparatus by controlling the injection of cooling water according to weather conditions, seasons, the state of the solar module, and the like. have. In addition, since the remote control is used to manage the photovoltaic power plant efficiency improving device at a long distance, it is possible to integrate and manage a plurality of photovoltaic power plant efficiency improving devices and to greatly reduce the cost of managing the efficiency improving device. Furthermore, it is possible to create new revenue sources through maintenance.

Description

Remote Control System for Photovoltaic Power Plant Efficiency Enhancement Equipment {SYSTEM OF REMOTELY CONTROLLING EFFICIENCY ENHANCEMENT EQUIPMENT FOR SOLAR PHOTOVOLTAIC POWER FACILITIES}

The present invention relates to a solar power plant efficiency improving apparatus, and more particularly, a remote control system that can easily integrate and manage a plurality of solar power plant efficiency improving apparatus by remotely controlling the solar power plant efficiency improving apparatus. It is about.

Generally, the method of using solar energy is largely divided into a method using solar heat and a method using solar light. The method of using solar heat is to heat and generate electricity using water heated by the sun, and the method of using solar light can generate electricity by using the light of the sun to operate various machines and appliances. It is called solar power.

In the above-described method, the photovoltaic effect in which photovoltaic power generation is caused by electron-hole electromotive force generated by light energy when irradiating sunlight to a pn junction photovoltaic panel with n-type doping on a silicon crystal. Generate electricity using

To this end, a solar cell for condensing sunlight, a photovoltaic module that is an assembly of solar cells, and a solar array in which the solar cells are constantly arranged are required.

For example, when light is incident on the solar module from the outside, electrons in the conduction band of the p-type semiconductor are excited to the valence band by the incident light energy. One electron-hole pair (EHP) is formed inside the p-type semiconductor, and electrons in the electron-hole pair generated are transferred to the n-type semiconductor by an electric field existing between the pn junctions. It passes over and supplies current to the outside.

Unlike conventional energy sources such as fossil raw materials, sunlight is a clean energy source without the risks of greenhouse gas emissions, noise, and environmental degradation that cause global warming, and there is no fear of exhaustion. In addition, unlike other wind and sea power, solar power plants have the advantage of free installation and low maintenance costs.

However, in the case of the most widely used silicon solar cell, when the temperature of the photovoltaic module rises, output decrease of 0.5% per 1 ° C occurs. According to these characteristics, the output of solar power peaks in spring and autumn, not in the summer when the sun is the longest. This increase in temperature is a major cause of lowering the power generation efficiency of photovoltaic power generation.

In addition, the photovoltaic module has a disadvantage in that the coolant can be easily accumulated due to meteorological phenomena such as yellow sand and bad weather on the solar panel. If the coolant is accumulated in the photovoltaic module, the photovoltaic module may have a low light absorption rate, which may lower power generation efficiency.

In addition, when rain or snow falls on the solar panel in winter, a decrease in power generation efficiency may occur. In order to prevent the deterioration of power generation efficiency caused by dirt, snow, and rain, a photovoltaic power plant maintenance device is used.

Photovoltaic power generation equipment efficiency improvement equipment (maintenance equipment) performs constant power generation by photovoltaic module cooling by cooling the temperature of photovoltaic module and washing and snow removing dirt, snow and rain accumulated on solar panel. It functions to maintain and maintain photovoltaic power generation facilities.

As such, the solar power plant efficiency improvement facility uses enormous amounts of water (cooling water, washing water, snow removal water, etc., but may be collectively referred to as cooling water) for cooling and cleaning the solar module. Depending on the location, groundwater, tap water, and river water are used as cooling water. In many areas where supply of sufficient cooling water is difficult, electricity used for supplying and spraying cooling water also reduces the efficiency of the photovoltaic plant as a whole. Efficient use of cooling water is one of the most important factors in the design of PV plant maintenance.

Therefore, there is an urgent need for the introduction of a management system that allows the cooling water to be properly sprayed according to weather conditions, seasons, and the state of the photovoltaic module for efficient use of the cooling water.

The present invention has been devised to solve the above-mentioned conventional problems, and an object of the present invention is to efficiently control the photovoltaic power plant efficiency improving apparatus by controlling the injection of cooling water appropriately according to weather conditions, seasons, and the state of the solar module. In addition, the present invention provides a remote control system capable of integrated management of a plurality of solar power plant efficiency improving devices through remote control.

In order to achieve the above object, the present invention, by spraying the cooling water stored in the storage tank to the photovoltaic module through the coolant injection means via a pump and a valve to improve the efficiency of the photovoltaic power generation equipment to maintain and improve the efficiency of the photovoltaic module A control system of an apparatus, comprising: a controller for controlling the operation of the pump and valve; And it provides a remote control system of the solar power plant efficiency improvement apparatus comprising an integrated management server for controlling the controller remotely using wired or wireless communication.

The controller is configured to sense and measure information regarding the state of the valve driving unit driving the valve, the pump driving unit driving the pump, the solar power generation facility and the efficiency improving apparatus and based on the detected and measured information. And a sensor unit generating data, wherein the integrated management server controls the valve driving unit and the pump driving unit, and receives the data from the sensor unit to monitor the sensor unit.

Signal transmission and reception between the valve drive unit, the pump drive unit, the sensor unit and the integrated management server may be at least through a communication network such as mobile communication, WiBro or power line communication, including wired and wireless LAN, CDMA.

The sensor unit may include a temperature sensor for measuring the temperature of the solar module, the temperature of the cooling water or the temperature.

The sensor unit may include a light amount sensor for measuring the light transmittance of the solar module.

The sensor unit may include a pollution degree sensor for measuring the pollution degree of the solar module.

The sensor unit may include a rain sensor for determining whether it is raining.

The sensor unit may include a burglar detection sensor for detecting whether the solar power generation facility or the efficiency improving device is stolen.

The sensor unit may include a pressure sensor for measuring the water pressure of the cooling water supply pipe to which the cooling water is transferred from the storage tank to the cooling water injection means.

The valve driving unit may include a signal receiving circuit for receiving a valve control signal from the integrated management server and a valve actuator for generating a driving force in response to the valve control signal received by the signal receiving circuit to open and close the valve. have.

The pump driving unit may include an electronic circuit for starting and stopping the pump by receiving a pump control signal from the integrated management server and stopping the supply and power supply of power to the pump in response to the received pump control signal. Can be.

According to the remote control system of the solar power plant efficiency improving apparatus according to the present invention, it is possible to efficiently control the solar power plant efficiency improving apparatus by controlling the injection of cooling water according to weather conditions, seasons, the state of the solar module, and the like. have.

In addition, since the remote control is used to manage the photovoltaic power plant efficiency improving device at a long distance, it is possible to integrate and manage a plurality of photovoltaic power plant efficiency improving devices and to greatly reduce the cost of managing the efficiency improving device. Furthermore, it is possible to remotely maintain and manage cooling water injection conditions daily, monthly, and seasonally, thereby creating new revenue sources.

1 is a view schematically showing a photovoltaic power generation efficiency improving apparatus according to an embodiment of the present invention.
Figure 2 is a schematic block diagram of a remote control system of the solar power plant efficiency improving apparatus according to an embodiment of the present invention.

Hereinafter, the same reference numerals will be described in detail with reference to the accompanying drawings, with reference to the same components preferred embodiments of the present invention. The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical meanings and concepts of the present invention.

The embodiments described in the specification and the configuration shown in the drawings are preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, various equivalents and modifications that can be substituted for them at the time of the present application are There may be.

1 is a view schematically showing a photovoltaic power generation efficiency improving apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the solar power plant efficiency improving apparatus 1 according to an embodiment of the present invention includes a storage tank 10, a pump 20, a valve 30, a coolant spray means 40, and a controller 50. ) And integrated management server (60). In addition, the solar power plant efficiency improving apparatus further includes a cooling water supply pipe for connecting the storage tank 10, the pump 20, the valve 30, and the cooling water injection means 40 to deliver the cooling water.

The storage tank 10 stores the coolant to be supplied to the coolant spray means 40. The storage tank 10 receives cooling water such as tap water or ground water from the outside.

Cooling water injection means 40 is installed to correspond to each of the solar modules 7 is a means for injecting the cooling water to spray the cooling water to the solar module (7). In this embodiment, the coolant spray means 40 is designed to correspond to the solar module 7 in a one-to-one manner, but considering the area of the solar module 7 and the sprayed area of the coolant spray means 40, Two or more solar modules 7 may correspond to one cooling water injection means 40, or one solar module 7 may correspond to two or more cooling water injection means 40.

The pump 20 pumps the coolant stored in the storage tank 1 to supply the coolant to the coolant spray means 40 through the coolant supply pipe, and the valve 30 opens and closes the coolant supply pipe to cool the spray water supply means 40. Adjust coolant injection.

The controller 50 controls the operation of the pump 20 and the valve 30, and includes a valve driving unit 51 for driving the valve and a pump driving unit 52 for driving the pump. In addition, it includes a sensor unit for detecting and measuring information on the status of the photovoltaic power generation equipment and the efficiency improving device and generates data based on the detected and measured information.

The integrated management server 60 is a device for remotely controlling the controller 50 using wired or wireless communication. The integrated management server 60 controls the valve driving unit 51 and the pump driving unit 52, and transmits the data from the sensor unit 53. It receives and monitors the sensor unit 53. Through this, the integrated management server 60 may integrate and manage a plurality of solar power plant efficiency improving apparatus.

Transmission and reception of signals between the integrated management server 60 and the valve drive unit 51, the pump drive unit 52, and the sensor unit 53 is a variety of conventionally known mobile communication, such as wired and wireless LAN, CDMA, WiBro, power line communication, etc. It can be implemented in a communication form, but is not limited thereto and can be implemented using any form of communication capable of transmitting and receiving data.

Figure 2 is a schematic block diagram of a remote control system of the solar power plant efficiency improving apparatus according to an embodiment of the present invention.

2, the remote control system according to an embodiment of the present invention includes a controller 50 and the integrated management server 60, the controller 50 is a valve drive unit 51, a pump drive unit ( 52) and a sensor unit 53.

The valve driving unit 51 receives the valve control signal from the integrated management server 60 to drive the valve 30. The valve control signal transmitted from the integrated management server 60 may include an opening / closing command of the valve 30. The valve driving unit 51 generates a driving force in accordance with the signal control circuit receiving the valve control signal from the integrated management server 60 and the valve control signal received by the signal receiving circuit to open and close the valve actuator 30. It may include. Here, the valve actuator may be implemented with, for example, an electric motor.

The pump driving unit 52 may receive a pump control signal from the integrated management server 60, that is, a command to start or stop the pump 20, and operate or stop the pump 20 in response thereto. . The pump driving unit 52 may be implemented as an electronic circuit capable of starting and stopping the pump by receiving a pump control signal from the integrated management server 60 and supplying or stopping power to each pump accordingly.

The sensor unit 53 may include a plurality of sensors to detect and measure various information regarding the state of the photovoltaic power generation facility and the efficiency improving facility. For example, the sensor unit 53 may include a temperature sensor 81, a light quantity sensor 82, a pollution degree sensor 83, a raindrop sensor 84, a burglar detection sensor 86, a pressure sensor 87, and the like. Can be.

The temperature sensor 81 measures the temperature of the solar module 7, the temperature or temperature of the cooling water, and provides the measured data to the integrated management server 60. The integrated management module 60 may predict the amount of coolant injection required to lower the temperature of the photovoltaic module 7 to an appropriate value or less through such temperature data, and through this, the amount of coolant to be supplied to the storage tank 10. Can be calculated.

Light amount sensor 82 is a sensor for measuring the amount of sunlight, because the amount of sunlight varies depending on the degree of clear and cloudy weather, and provides the measured data to the integrated management server (60).

Pollution degree sensor 83 measures the pollution degree of the solar module, and provides the measured data to the integrated management server (60). Pollution degree sensor 83 measures the amount of light passing through the solar module 7 or the amount of light reflected from the solar module 7 by the contamination state of the solar module 7, for example, by dirt. Determine if it is contaminated or if it is snowing. If dirt is accumulated, the washing solution may be sprayed together to increase the washing efficiency, and a separate washing solution supply unit may be additionally configured to improve the efficiency of the washing solution.

The raindrop sensor 84 determines whether it is raining, and provides the determined result to the integrated management server 60. When it is determined that the rain sensor 84 is raining, it is possible to stop the injection of the cooling water in order to prevent unnecessary consumption of the cooling water.

Theft detection sensor 86 detects the theft of a photovoltaic power generation facility or an efficiency improving device, and provides the detected result to the integrated management server 60. For example, the burglar detection sensor may generate a signal when a component is separated, and may generate a signal when a communication line connected to each component such as a solar module is disconnected in order to implement this. In addition, it may be implemented as a touch sensor for generating a signal when there is a contact of an outsider.

The pressure sensor 87 measures the water pressure of the cooling water supply pipe, and provides the measured data to the integrated management server 60. The delivery management server 60 may terminate the start of the efficiency improvement equipment when the pressure is out of the predetermined pressure range. If the measured pressure exceeds the maximum value of the set pressure range, there is a problem such as freezing of the cooling water in the cooling water supply pipe. If the measured pressure is less than the minimum value of the set pressure range, the water leaks into the cooling water supply pipe. Since it is a case of a problem, such as occurring, it is possible to prevent the failure of the equipment and to use the cooling water more efficiently.

The integrated management server 60 receives and stores the signal detected from the sensor unit 53, and grasps the current state of the photovoltaic power generation facility and the efficiency improving facility from the received signal, and accordingly drives and valves of the pump 20. Opening and closing of 30 can be adjusted.

On the other hand, the integrated management server 60 may include a timer so that the coolant is injected only during the set driving time, it is possible to adjust the injection amount of the coolant according to the time. For example, the coolant may be sprayed at predetermined intervals from the predetermined start time to the end time, and the coolant injection amount is gradually increased until the time when the temperature of the solar module 7 is expected to be the highest. The injection amount of can be reduced gradually. In order to adjust the cooling water spray direction, the injection time of the cooling water injection, the stop time of stopping the cooling water injection, or the injection speed of the cooling water may be adjusted.

In addition, the integrated management server 60 may receive the weather information of the Meteorological Agency to adjust the injection amount of the cooling water or the amount of cooling water stored in the storage tank 10 by using the same.

According to the remote control system of the solar energy efficiency improving device according to the present invention described above, by controlling the injection of the cooling water according to the weather conditions, seasons, the state of the solar module, etc., the efficient control of the solar energy efficiency improvement device It can manage the photovoltaic power plant efficiency improving device at a long distance by using remote control, so it is possible to integrate and manage a number of photovoltaic power plant efficiency improving devices and to greatly reduce the cost of managing the efficiency improving device. .

The technical spirit of the present invention has been described above with reference to the accompanying drawings, but this is only illustrative of the preferred embodiments of the present invention and is not intended to limit the present invention. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

10: storage tank 20: pump
30: valve 40: cooling water injection means
50: controller 51: valve drive unit
52: pump drive unit 53: sensor unit
60: integrated management server

Claims (11)

A control system of a solar power plant efficiency improving apparatus for maintaining and improving the efficiency of a photovoltaic module by injecting the coolant stored in the storage tank into a photovoltaic module through a coolant injection means via a pump and a valve.
A controller for controlling the operation of the pump and valve; And
It includes an integrated management server for controlling the controller remotely using wired or wireless communication,
The controller,
A valve driving unit for driving the valve,
A pump driving unit for driving the pump;
It includes a sensor unit for detecting and measuring information on the status of the photovoltaic power generation equipment and the efficiency improving device and generates data based on the detected and measured information,
The integrated management server controls the valve driving unit and the pump driving unit, and receives the data from the sensor unit to monitor the sensor unit, characterized in that the remote control system of the solar power plant efficiency improving apparatus.
delete The method of claim 1,
Signal transmission and reception between the valve drive unit, the pump drive unit, the sensor unit and the integrated management server is made through a communication network selected from the group consisting of wired and wireless LAN, CDMA mobile communication, WiBro and power line communication. Remote control system of solar power plant efficiency improving device.
The method of claim 3, wherein
The sensor unit is a remote control system of the solar power plant efficiency improving apparatus comprising a temperature sensor for measuring the temperature of the solar module, the temperature of the cooling water or temperature.
The method of claim 3, wherein
The sensor unit is a remote control system of the solar power plant efficiency improving apparatus comprising a light quantity sensor for measuring the light transmittance of the solar module.
The method of claim 3, wherein
The sensor unit is a remote control system of the solar power plant efficiency improvement apparatus comprising a pollution degree sensor for measuring the pollution degree of the solar module.
The method of claim 3, wherein
The sensor unit is a remote control system of the solar power equipment efficiency improving apparatus, characterized in that it comprises a rain sensor for determining whether it is raining.
The method of claim 3, wherein
The sensor unit is a remote control system of the solar power equipment efficiency improving apparatus comprising a theft detection sensor for detecting whether the solar power equipment or the efficiency improving device theft.
The method of claim 3, wherein
The sensor unit comprises a pressure sensor for measuring the water pressure of the cooling water supply pipe that the coolant is transferred from the storage tank to the cooling water injection means remote control system of the solar power plant efficiency improving apparatus.
The method of claim 1,
The valve driving unit includes a signal receiving circuit for receiving a valve control signal from the integrated management server and a valve actuator for generating a driving force in response to the valve control signal received by the signal receiving circuit to open and close the valve. A remote control system for a solar power plant efficiency improving device.
The method of claim 1,
The pump driving unit includes an electronic circuit for starting and stopping the pump by receiving a pump control signal from the integrated management server and stopping the supply and power supply of power to the pump in response to the received pump control signal. Remote control system of the solar power plant efficiency improving apparatus, characterized in that.

Images