KR102221157B1 - A cooling system for solar module - Google Patents

Abstract

The present invention relates to a cooling system for a solar module. More specifically, the cooling system for the solar module comprises: a coolant storage unit for storing coolant cooled to a predetermined temperature or less by using the cold and heat generated by a cold and heat generation means; a temperature/insolation meter installed at one or both ends of an installed solar module to measure the amount of ambient insolation of the installed solar module, and integrally equipped with a temperature sensor capable of measuring the temperature of the rear surface of the solar module; at least one wind direction and speed meter installed around the solar module to measure the wind direction and speed around the solar module; a cold-air generation device having coolant circulation lines provided on the front and rear surfaces thereof to receive the coolant stored in the coolant storage unit, and having a blower fan provided toward the rear surface of the solar module to forcibly supply the air cooled through the coolant circulation lines to the rear surface of the solar module and be rotated forward and backward; and a central management control unit connected to the temperature/insolation meter, the wind direction and speed meter, and the cold-air generation device to perform control so that the coolant of the coolant storage unit is supplied and circulated to the cold-air generation device based on weather information and temperature information for the rear surface of the solar module collected in response to the control command of a set program, and to perform control so that cold air is supplied to the rear surface of the solar module under the control of the rotational direction and speed of the blower fan. Therefore, cooling efficiency can be increased.

Description

Solar module cooling system {A cooling system for solar module}

The present invention relates to a solar module cooling system, and more particularly, to the rear side of a solar module installed on a roof or roof of a facility, while rotating in a forward and reverse direction according to the surrounding wind direction and air volume, cold wind is directed toward the rear surface of the solar module. The present invention relates to a solar module cooling system configured with a cooling air generating device provided to cool the high temperature on the back side of the solar module.

Solar power generation technology is a clean technology capable of infinitely producing electricity from sunlight, so its use and installation are on a steadily increasing trend.

The main facilities of a solar power plant include a solar panel that receives sunlight and generates electricity by the photovoltaic effect, an inverter that converts DC electricity generated from the solar panel into commercial power, AC. , A storage battery for storing the generated electricity, a solar panel support structure fixedly installed at a certain height from the ground to facilitate sunlight reception of the solar panel, and storage, distribution, and supply of electricity produced from the solar panel A control panel for controlling the device and a management server for managing and maintaining solar power generation facilities at a remote location are basically provided.

As such, the most important factor among various power generation facilities is the solar panel that is directly involved in generating electricity.

Therefore, when installing and operating a photovoltaic power plant, a photovoltaic power generation operator needs to properly maintain and manage the photovoltaic panel so that the performance of the photovoltaic panel installed in an exposed state is properly exhibited.

The present invention is to control the external environmental factors of the solar panel so that the performance of the solar panel itself is properly exhibited by controlling the external environmental factors of the solar panel installed to increase the power generation efficiency of the solar panel itself. , External environmental factors that affect the power generation performance of the solar panel include dust or foreign matter that accumulates on the surface of the solar panel, and heat generated from the back side of the solar panel during power generation.

Therefore, in order to remove various foreign substances accumulated on the surface of the solar panel, it is desirable to perform a cleaning operation on the surface of the solar panel from time to time to manage the solar panel to maintain its performance.

On the other hand, the solar panel's surface temperature rises not only by the power generation process, but also by hot sunlight, and when the temperature of the solar panel rises, the output voltage decreases and the amount of power generation decreases. It is important to be able to increase insolation while preventing it.

Looking at the change in the power generation efficiency according to the increase in the surface temperature of the solar panel, the following table shows the values of the STC (Standard Test condition) basic condition [Insolation 1,000W/m ² , Cell surface temperature 25 degrees, AM (air mass, 1.5)]. 1] is known to appear.

Comparison table of output according to temperature change of solar module Solar panel (module) surface temperature Output amount (based on 100W) Efficiency change 5 degrees 110W +10% 15 degrees 105W +5% 25 degrees 100W 0 35 degrees 95W -5% 45 degrees 90W -10% 55 degrees 85W -15% 65 degrees 80W -20% 75 degrees 75W -25% 85 degrees 70W -30%

As can be seen in [Table 1], it can be seen that the output efficiency decreases by 5% each time the temperature rises by 10 degrees, and it can be seen that the efficiency decrease of 0.5% occurs every time the temperature rises by 1 degree. Therefore, in the summer when the outside temperature is high, the temperature of the surface of the solar module rises, and a technology for lowering the temperature of various solar panels (modules) has been developed or It is being created.

The system for cooling a solar panel (module) is a water cooling type that directly flows cooling water to one side of the solar panel for cooling, a cooling method using a thermoelectric element, and a cooling water by installing a cooling cable on the rear of the solar panel. A method of cooling by circulating the inside of the cooling cable has been devised.

However, in the method of direct cooling by flowing cooling water, there is a difficulty in requiring a number of additional peripheral technology configurations such as securing cooling water, cooling cooling water, supplying cooling water, and waterproofing panels.

In addition, since the method of using a thermoelectric element has an economic disadvantage in terms of cost-effectiveness, in the case of the cooling water supply method using a cooling cable, a large economic cost is required for the configuration of the cooling water supply device and the construction of auxiliary facilities required for operation. It had a disadvantage of low economic feasibility in terms of efficiency due to its low cost-performance ratio.

In order to overcome the disadvantages of the conventional solar panel cooling method, the applicant of the present invention has devised a “solar module cooling system” with patent application No. 10-2018-58159 (2018.05.23).

However, the photovoltaic module cooling method using the cooling water used in the prior invention of the present applicant and the conventional photovoltaic module cooling method devised has a low level that is difficult to apply to a large-scale photovoltaic power plant and a photovoltaic power plant installed in facilities. The disadvantages of poor economic and practicality were discovered, and the present invention was conceived according to the need to compensate for them.

-Patent registration No. 10-1600554 (2016.02.29) -Patent Publication No. 10-2011-78024 (2011.07.07) -Patent Publication No. 10-2013-88344 (2013.08.08) -Patent Publication No. 10-2019-133809 (2019.12.04)

An object of the present invention is to provide a solar module cooling system capable of improving the convenience of installation, economy, and cooling efficiency by improving the disadvantages of the conventional water-cooled solar module cooling system and improving the original invention of the applicant. .

In particular, the present invention is an eco-friendly solar module cooling system by actively operating the solar module cooling system according to the external weather condition in which the solar module is installed, and obtaining cold heat required for cooling the solar module from the power generation facility of the facility. There is another purpose to provide.

In order to achieve the above object, the solar module cooling system according to the present invention includes a generator using a gas engine installed to supply auxiliary power to facilities using commercial power, and installed on the roof or roof of the facility to generate solar power. A photovoltaic module that generates power to supply auxiliary power of a facility, an energy storage device that stores excess power produced by the generator or photovoltaic module, and the insolation measurement around the photovoltaic module and the measurement of the rear surface temperature of the photovoltaic module Using a temperature/insolation measuring system integrated with a possible temperature sensor, at least one wind direction and anemometer installed around the solar module to measure the wind direction and wind speed around the solar module, and the cold heat generated from the cold heat generating means Thus, a cooling water storage unit that stores cooling water cooled below a certain temperature, a cold wind generator installed toward the rear surface of the solar module to blow cold air, and the temperature/insolation measuring system, wind direction and anemometer, and a cold wind generation device are connected. The center for cooling the rear surface of the solar module by controlling the cooling water from the cooling water storage unit to be supplied and circulated to the cold wind generator based on the weather information and temperature information on the rear surface of the solar module 10 collected according to the control command of the set program. In the solar module cooling system comprising a; a management control unit, wherein the cold air generating device is installed toward the rear surface of the solar module, while performing forward and reverse rotation under the control of the central management control unit, one side of the rear surface of the solar module or In the cooling water storage unit, the blower fan is blown to the other side and the wind that passes through the rotation of the blower fan is heat-exchanged to supply cool air to the rear surface of the solar module. Consisting of a cooling water circulation line installed to circulate the supplied cooling water, the driving power required for rotation of the blower fan, the cooling water circulation pump forcibly circulating the cooling water stored in the cooling water storage unit, and the operation power of the central management control unit are the generator or energy The power stored in the storage device is used, and the cooling heat of the cold heat generating means is configured to use the evaporation heat of the heat pump, which is a cold heat generating means supplied with power from the generator Have a gong

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The solar module cooling system according to the present invention described above is directed toward the rear surface of the solar module.

The cooling wind blown from the cold wind generator is provided so that the cold air is evenly transmitted to the entire back surface of the solar module to effectively cool the heat generated from the back surface of the solar module.

In particular, a coil-type cooling water circulation line through which cooling water is circulated is provided on the front and rear surfaces of the cold air generating device, and the outside air introduced by the rotation of the blower fan passes through the coil-type cooling water circulation line of the dual structure and is instantly cooled. By being configured to be blown out, the configuration is simple compared to the structure in which the conventional water-cooled cooling pipe is installed on the entire rear surface of the solar module, and its installation efficiency can be improved, thereby reducing the expensive economic cost required to construct the solar module cooling system. Provides the advantage that can be done.

In addition, the present invention is configured to control the rotational direction and operation of the blower fan according to the external weather conditions in which the solar module is installed, particularly wind direction and wind speed, so that heat generated from the solar module can be cooled more effectively.

1 is an overall schematic configuration diagram of a solar module cooling system according to an embodiment of the present invention,
2 is an excerpted separated state diagram of a cold air generating device applied to a solar module cooling system according to an embodiment of the present invention;
3 is a block diagram of a configuration of a central management control unit that performs overall control of a solar module cooling system according to an embodiment of the present invention.

The solar module cooling system according to an embodiment of the present invention is a system used for cooling a solar module that is installed on a roof or roof of a facility to auxiliaryly produce and supply power used in the facility.

In particular, in a system configured to use the power and energy produced by a generator and heat pump using a general commercial power source and a gas engine, cooling water is produced and stored using the cold heat of the heat pump, and then the solar power is used. It provides a solar module cooling system configured to cool the optical module.

Accordingly, a solar module cooling system according to an embodiment of the present invention includes a cooling water storage unit for storing cooling water cooled to a predetermined temperature or less by using the cooling heat generated by the cooling heat generating means; A temperature/insolation meter installed at one or both ends of the solar module to measure the ambient solar radiation of the installed solar module, and integrally equipped with a temperature sensor capable of measuring the rear surface temperature of the solar module; At least one wind direction and anemometer installed around the photovoltaic module to measure the wind direction and wind speed around the photovoltaic module; A cooling water circulation line supplied with the cooling water stored in the cooling water storage unit is installed on the front and rear surfaces, and a positive area installed toward the rear surface of the solar module to forcibly supply the cooled cold air to the rear surface of the solar module while passing through the cooling water circulation line. A cool air generating device capable of rotating; Supply and circulate the cooling water of the cooling water storage unit to the cold wind generator based on the meteorological information collected according to the control command of the program set connected to the temperature/insolation measuring system, the wind direction and anemometer, and the cold wind generating device and the temperature information on the back surface of the solar module. And a central management control unit for controlling so that cold air is supplied to the rear surface of the solar module by controlling the rotation and rotation direction of the blowing fan.

In addition, the solar module according to an embodiment of the present invention is configured as a solar module for a facility that is installed on the roof or roof of a building or facility and around the building to generate power used in the building or facility, and blows the cooling air generating device. The driving power required for fan rotation, a cooling water circulation pump forcibly circulating the cooling water stored in the cooling water storage unit, an operation power supply of the central management control unit, and a cooling heat source of the cooling water stored in the cooling water storage unit are installed in the facility where the solar module is installed. Electric power generated by a generator that receives the power of a gas engine that uses natural gas installed for the power generation of the plant or the total power stored in the energy storage device, and the evaporation heat of a heat pump operated by the power supplied from the generator are used. Is configured to

In addition, the central management control unit includes a power production management unit that measures and stores the power produced by the solar module in real time, a coolant management unit that manages the temperature and water level of the cooling water stored in the cooling water storage unit, and the solar radiation meter receives it. An insolation and temperature information storage unit is provided for collecting and storing data on the rear surface of the solar module and surrounding insolation data of the solar module.

In addition, the central management control unit includes a wind direction/wind speed information storage unit that collects and stores the surrounding wind direction and wind speed information of the solar module measured by the wind direction and anemometer, and the insolation amount and temperature information stored in the solar radiation amount and temperature information storage unit. A blowing fan rotation control unit that controls the rotation direction and rotation speed of the forward/reverse rotation of the blowing fan by comparing wind information around the solar module stored in the wind direction/wind speed information storage unit with a control value of a set program; and A memory unit in which a program necessary for control and management of the unit is stored, and a communication unit that transmits cooling water information, blowing fan rotation information, solar module power generation information, and weather information, which are managed and stored in each unit, to a manager at a set period; It consists of the included configuration.

On the other hand, terms used in the detailed description of the present invention are terms generally used in the art and terms arbitrarily selected by the applicant in consideration of functions for the configuration of the present invention, and in this case, the meaning of the term is the present invention. It is defined based on the contents of the whole.

In addition, among the terms used in the detailed description of the present invention,'commercial power' means supply power for general industrial or general housing supplied by KEPCO, and'facilities' means commercial power such as residential buildings, factories, offices, and electric vehicle charging stations. It is interpreted to mean an independent building with a certain scale.

In addition, in the detailed description of the present invention, when a certain part'includes' a certain element, it means that other elements may be further included rather than excluding other elements unless otherwise stated. do.

In addition, in the detailed description,'~ unit' means an independent device or means configured to perform at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software.

In addition, in the detailed description, when a part is'connected' with another part, it is composed of not only'direct electrical connection' but also'indirect electrical connection' with other elements, parts, devices, etc. It is interpreted as a meaning including the case where it is made.

In addition, in the detailed description of the present invention, the technology generally widely used or known in the art, or the technology configuration disclosed in the original invention of the present applicant (Publication No. 10-2019-133809, Publication Date: 2019.12.04) A detailed description is omitted as much as possible, and the description is limited to the features of the present invention.

Hereinafter, with reference to the accompanying drawings in the specification, a detailed description will be given focusing on the main features of the solar module cooling system according to an embodiment of the present invention.

1 shows the overall schematic configuration of a solar module cooling system according to an embodiment of the present invention, and FIG. 2 is an excerpted separated state of a cold air generating device applied to a solar module cooling system according to an embodiment of the present invention. 3 is a block diagram schematically showing the configuration of a central management control unit for performing overall control of a solar module cooling system according to an embodiment of the present invention.

As shown in the overall configuration diagram of FIG. 1, the solar module cooling system 100 according to the embodiment of the present invention is a gas engine using natural gas such as LPG and LNG installed for power supply to the facility 70 As the generator 50 and the heat pump 60 are operated with the power of 40, the power produced by the generator 50 or the power stored in the ESS 55 is provided to the facility, and produced by the cold heat generating means (C). The warm and cold heat uses a system configured to be used for cooling and heating facilities.

Of course, the facility 70 is configured such that commercial power is supplied as main power, but the illustration thereof is omitted in the drawings, and reference numeral 17, which is not described, denotes an inverter.

Therefore, the power produced by the generator 50 and the power produced by the photovoltaic module 10 are configured to be supplied as auxiliary power of the facility 70, and the generator 50 and the photovoltaic module at peak load of commercial power It is configured to supply the power produced in (10), so that efficient use of power and stable power use of facilities are possible.

That is, the photovoltaic module 10 applied to the embodiment of the present invention is installed on the roof or roof of the facility and around the facility to support the power used in the facility and the solar module for the facility and the cooling system of the photovoltaic module. It relates to a driving power required for rotation of the cold wind generator 30 required for cooling of the solar module, a cooling water circulation pump 35 for forcibly circulating the cooling water stored in the cooling water storage unit 20, and a central management control unit 80 ) Is the power generated by a generator or solar module that receives the power of a gas engine using natural gas used for power generation of the facility where the solar module 10 is installed, or a separate energy storage device It is configured to operate by receiving power stored in (ESS,55).

In addition, the cooling heat source of the cooling water stored in the cooling water storage unit 20 is configured to use the evaporation heat of the heat pump 60, which is one of the cooling heat generating means C operated by power supplied from the generator side.

In more detail, a cooling water circulation line 25 is installed between the cooling water storage unit 20 and the cold air generating device 30 installed on the rear side of the solar module 10, and the cooling water circulation line 25 A heat pump 60 is installed in the middle of the heat pump 60 to store the coolant in the coolant storage unit 20 by cooling the coolant circulation line 25 through which the coolant flows using the cold heat produced by the heat pump 60 do.

A cooling water circulation pump 35 is installed in one cooling water circulation line 25 to supply the cooling water stored in the cooling water storage unit 20 to the cold air generating device 30 installed toward the rear surface of the solar module 10, and the A coil-type cooling water circulation line 34 is installed on the front and rear surfaces of the blower fan 32 of the cold air generator 30, and the cooling water supplied from the cooling water circulation pump 35 is supplied to the coil-type cooling water circulation line 34 and blows simultaneously. The fan 32 rotates and the inflowed outside air is instantly cooled while passing through the coil-type cooling water circulation line 34 installed on both sides, so that cold air can be supplied to the rear surface of the solar module 10.

In addition, one or more solar radiation measuring systems 15 are installed at one end or both ends of the solar module 10 to measure the surrounding solar radiation of the solar module 10, and the back temperature of the solar module 10 can be measured. At least one temperature sensor 14 is provided on the back side of the solar module 10, and the temperature sensor 14 and the insolation meter 15 are shown separately in the drawings for understanding, but installation And for convenience of management, it is preferable that it is configured to be simply installed on the back side of the solar module by being configured with an integrated temperature/insolation meter.

In addition, at least one wind direction and anemometer 12 is installed around the photovoltaic module 10 to measure the wind direction and wind speed around the photovoltaic module 10 installed, and the wind measured by the wind direction and anemometer It is configured to control the speed or rotation direction of the blowing fan of the cold wind generator according to the direction or wind speed.

The cold air generating device 30 installed toward the rear surface of the solar module 10 includes a blowing fan 32 capable of forward/reverse rotation, and a plurality of coils on the front and rear surfaces of the blowing fan 32, respectively. It consists of a configuration including a coil-type cooling water circulation line 34 configured to circulate the cooling water supplied from the cooling water storage unit 20 by being wound, and the cooling water from the cooling water storage unit 20 to the coil-type cooling water circulation line 34 The above-described cooling water circulation pump 35 is provided in the middle of the cooling water circulation line 25 to facilitate supply of the cooling water.

In addition, the temperature sensor 14, the insolation meter 15, the wind direction and anemometer 12, and the central management control unit 80 electrically connected to the cold wind generator 30 are collected according to the control command of the set program. Based on the information and temperature information of the photovoltaic module, the cooling water of the cooling water storage unit 20 is controlled to be supplied and circulated to the cold wind generating device 30, and the rotational speed and rotation direction of the cold wind generating device 30 are controlled. It controls the supply of cold air to the back side of the optical module.

2 shows an excerpt of the cold air generating device 30.

The cold air generating device 30 includes a blowing fan 32 that rotates according to a control command of the central management control unit 80, and coil-type cooling water wound in a coil shape on the front and rear surfaces of the blowing fan 32. Consisting of a circulation line 25, the blower fan 32 is configured to be rotated in both directions of forward/reverse rotation, so that the air is blown to one side when rotating in the forward direction (clockwise direction), and when rotating in the reverse direction (counterclockwise) It is configured to be blown to the side.

In this way, the reason why the blowing fan 32 is configured to be capable of forward/reverse rotation is configured such that the blowing direction is controlled according to the flow of air in the area where the solar module 10 is installed, that is, the flow direction of air. Therefore, it is configured to prevent the cooling efficiency of the photovoltaic module from deteriorating according to the flow of the outside air by supplying cold air in the same direction as the flow of the outside air.

The blowing fan 32 has a structure that is installed at a constant inclination on the outer periphery of the central rotating body while having a flat shape rather than a curved surface so as to provide the same blowing effect in both directions when rotating forward/reversely.

The cooling water that has passed through the cold air generating device 30 is transferred to the heat pump 60, which is the cold heat generating means C, along the cooling water circulation line 25, while maintaining the cold and hot state again through heat exchange of the heat pump 60. It is transferred to and stored in the cooling water storage unit 20.

Figure 3 is a schematic block diagram of the configuration of the central management control unit 80 for performing overall control of the solar module cooling system according to an embodiment of the present invention.

As described above, an embodiment of the present invention is to provide a cooling system for a solar module installed as an auxiliary means for providing power to a facility, and the central management control unit 80 is the power demand of the facility 70 According to the configuration to automatically control the operation of the gas engine 40, the generator 50, and the heat pump 60, in the detailed description of the present invention, a detailed description thereof will be omitted, and devices and functions directly related to the present invention will be described. It will be illustrated and described as a block diagram for limitation.

That is, as shown in FIG. 3, the central management control unit 80 includes the solar module 10, the temperature sensor 14 installed on the rear surface of the solar module 10, and the solar module 10. Insolation measurement system 15 installed at the top of one side, and a strategic amount produced by the solar module 10 by electrical connection with the wind direction/anemometer 12 installed around the solar module 10, and a temperature sensor 14 The program set by receiving information such as the back temperature of the solar module 10 measured in, the insolation measured in the insolation meter 15, and the wind direction and wind speed measured in the wind direction / anemometer 12 It is configured to automatically control each department.

The photovoltaic power generation amount information produced by the solar module 10 is stored and managed in the power production management unit 88, and the temperature information and the insolation amount information measured by the temperature sensor 14 are insolation/temperature information storage unit 86 ), and the atmospheric information measured by the wind direction / anemometer is stored in the wind direction / wind speed information storage unit 85, respectively.

After the temperature information on the back side of the solar module 10 and the surrounding weather information of the solar module are collected and stored in a set storage unit, temperature information, wind direction/wind speed information and solar radiation information stored in each unit are stored in the memory unit 82. It is configured to control the operation of each unit according to whether or not it is appropriate by performing each comparison with the reference value set through the program.

Among the various information collected, in particular, based on the temperature information collected from the temperature sensor installed on the back side of the solar module, it is determined whether the proper temperature is maintained during the power generation of the solar module, and if the rear temperature of the solar module is set, the reference temperature If it is identified as above, the central processing unit 81 sends a signal to the cooling water circulation pump 35 to operate the cooling water circulation pump 35 to control the supply of cooling water.

As the cooling water circulation pump 35 receiving the signal from the central processing unit 81 is operated, the cooling water stored in the cooling water storage unit 20 is a coil-type cooling water constituting the cold air generator 30 through the cooling water circulation line 25 It is supplied to the circulation line 34, and the blowing fan 32 of the cold air generating device 30 is also rotated according to an operation signal of the cooling water circulation pump 35.

At this time, the central processing unit 81 detects the strength and direction of the wind based on the wind direction information collected through the wind direction/anemometer 12 and sends a signal to the blowing fan rotation control unit 84, and the blowing fan rotation control unit In 84, a control signal is sent to the blowing fan 32 by determining the rotational direction and the rotational speed of the blowing fan 32 of the cold air generating device 30 according to the received wind strength or direction, and the blowing fan 32 The cold wind is generated while rotating at the rotational direction and rotational speed according to the received control signal.

As an example, when the blowing fan 32 of the cooling air generating device 30 is installed in the east-west direction, and the wind collected through the wind direction / anemometer 12 is determined to be east wind, the blowing fan rotation control unit ( 84) transmits a rotation signal in the reverse direction (counterclockwise) to the blowing fan 32 so that the blowing fan rotates in the reverse direction, and the cold wind is blown to the west side of the rear side of the solar module by the reverse rotation of the blowing fan 32. Let the air blow.

In addition, the cooling water stored in the cooling water storage unit 20 by the operation of the cooling water circulation pump 35 is supplied to the coiled cooling water circulation line 34 of the cold air generating device 30, and flows into the rotation of the blowing fan 32. The generated outside air is instantly cooled while passing through the coil-type cooling water circulation line 34 disposed on the front and rear surfaces of the blower fan 32 and is discharged in the west direction according to the blowing direction of the blower fan, and is generated from the back surface of the solar module. Allow the heat to cool.

Of course, when the direction of the wind direction collected through the wind direction/anemometer 12 is determined as western wind, the blowing fan rotation control unit 84 transmits a forward (clockwise) rotation signal to the blowing fan to blow air. The fan rotates in the forward direction, and the cold air generated by the forward rotation of the blower fan cools the rear surface of the photovoltaic module by blowing it eastward toward the rear side of the photovoltaic module.

In addition, when the wind strength around the solar module is determined as strong wind by analyzing the strength of the wind collected through the wind direction/anemometer 12, the blowing fan rotation control unit 84 determines the rotation speed of the blowing fan as a standard. It is controlled so that it can rotate at a lower speed than the speed, and when the wind strength around the solar module is recognized as a weak wind, the blowing fan rotation control unit 84 rotates the rotation speed of the blowing fan at a higher speed than a predetermined reference speed. It is configured to generate and supply cold air while controlling the rotation speed of the blowing fan according to the strength of the wind.

On the other hand, the water temperature and water level information of the cooling water stored in the cooling water storage unit 20 is identified in real time through the cooling water management unit 87, and the water temperature/level information of the cooling water identified based on the water temperature and level information of the cooling water identified in real time is the standard. When the temperature and the reference water level are identified or lower, a signal is sent to the central processing unit 81 so that the heat pump 60 is operated so that the temperature of the cooling water can be lowered, and the cooling water supply unit is not shown in the drawing. A certain amount of make-up water is supplied from the outside and managed so that the cooling water at an appropriate level is always maintained in the cooling water storage unit 20.

In addition, the central management control unit 80 is provided with a communication unit 83 to provide information on the amount of power generation and temperature of the photovoltaic module identified by each unit, information on insolation, wind direction/wind speed information, cooling water management information, and fan rotation control information. It is configured to be transmitted to the administrator side, and the information related to the transmission technology of the photovoltaic module-related information can be easily implemented by a person skilled in the art through a conventionally known technology, so a detailed description thereof will be omitted.

On the other hand, as a result of confirming the correlation of the cost required to construct an actual cooling system by zigzag installation of the cold wind generator equipped with the coil-type cooling water circulation line according to the present invention and the conventional cooling pipe on the back of the solar module, It was identified as shown in [Table 2].

Construction example of a conventional cooling system and a cooling system according to an embodiment of the present invention division Solar power plant 10㎾/h (30 modules) Conventional Example (Installation of cooling pipe on the back of the module) Embodiment of the present invention (cool air generating device) Copper tube usage 480m 16m/1EA 60M 10M/5EA Dongguan cost
(10,000 won/8m) 600,000 won KRW 20,000×30EA 75,000 won KRW 1.25 million×6EA Blowing fan (30,000 won/piece) - - 180,000 won - Cost required 600,000 won - 180,000 won -

As shown in Table 1 above, compared to the conventional embodiment in which a cooling pipe is installed on the rear surface of a solar module of the same capacity, a cold air generating device equipped with a coil-type cooling water circulation line is provided according to an embodiment of the present invention. When configuring the solar module cooling system, it was confirmed that the embodiment of the present invention is required to be about 58% cheaper.

As described above, in the detailed description of the present invention, the configuration and functions of the main features of the present invention have been described based on an embodiment of the accompanying drawings, but those skilled in the art can apply other equivalent technical means within the scope of the same technical idea of the present invention. It will be possible to implement the transformation.

10: solar module 12: wind direction / anemometer
14: temperature sensor 15: temperature/insolation meter
17: inverter
20: cooling water storage unit 25: cooling water circulation line
30: cold air generating device 32: blowing fan
34: coil-type cooling water circulation line 35: cooling water circulation pump
40: gas engine 50: generator
55: ESS 60: heat pump
70: facility 80: central management and control unit
81: central processing unit 82: memory unit
83: communication unit 84: blowing fan rotation control unit
85: wind direction/wind speed information storage unit 86: solar radiation/temperature information storage unit
87: cooling water management department 88: power production management department
100: solar module cooling system C: cold heat generating means

Claims (3)

A generator 50 using a gas engine 40 installed to supply auxiliary power to a facility 70 using commercial power, and solar power installed on the roof or roof of the facility to generate solar power to supply auxiliary power to the facility A module 10, an energy storage device 55 for storing power produced by the generator 50 or the photovoltaic module 10, and insolation measurement around the photovoltaic module 10 and a photovoltaic module 10 ), and at least one installed around the solar module to measure the wind direction and wind speed around the solar module 10, and a temperature/insolation measurement system (14,15) integrally equipped with a temperature sensor capable of measuring the temperature of the rear surface of the A wind direction and anemometer (12), and a cooling water storage unit (20) for storing cooling water cooled to a certain temperature or less by using the cold heat generated by the cooling heat generating means (C), and toward the rear surface of the solar module (10). The meteorological information collected according to the control command of the program set by being connected to the cold wind generator 30 installed to blow cold air, the temperature/insolation meter 15, the wind direction and anemometer 12, and the cold wind generator 30 And a central management control unit 80 for cooling the rear surface of the solar module by controlling to supply and circulate the cooling water of the cooling water storage unit 20 to the cold wind generator 30 based on temperature information on the rear surface of the solar module 10. In the solar module cooling system comprising;
The cold air generating device 30,
A blower fan 32 installed toward the rear surface of the solar module 10 and performing forward/reverse rotation under the control of the central management control unit 80 and blowing air to one or the other side of the rear surface of the solar module,
Wind that passes through the rotation of the blowing fan 32 is heat-exchanged to supply cool air to the rear surface of the solar module, so that it is wound multiple times in a coil shape on the front and rear surfaces of the blowing fan 32 in the cooling water storage unit 20. It consists of a cooling water circulation line 25 installed to circulate the supplied cooling water,
The driving power required for rotation of the blowing fan 32, a cooling water circulation pump forcibly circulating the cooling water stored in the cooling water storage unit 20, and the operation power of the central management control unit 80 are the generator 50 or the energy storage device. Using the power stored in (55),
A solar module cooling system, characterized in that the cold heat of the cold heat generating means (C) is configured to use evaporation heat of a heat pump, which is a cold heat generating means supplied with power from the generator (50). delete delete

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