KR101599420B1 - Solar Power System with Fog Spray Cooling and Cleaning Device for Solar PV Modules - Google Patents

Abstract

The present invention relates to a photovoltaic power generation system with a fog spray cooling and cleaning device for a solar module. The photovoltaic power generation system includes: a solar module collecting sunlight to generate power; and a fog spray cooling and cleaning device disposed adjacent to the solar module and cooling or cleaning the solar module by a fog spray method. According to the present invention, the photovoltaic power generation system can cool or clean the solar module through the fog spray method, thereby increasing generation efficiency of the solar module.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a solar power generation system,

The present invention relates to a photovoltaic power generation system, and more particularly, to a fog-type cooling and cleaning apparatus for a solar module capable of cooling or cleaning a photovoltaic module through a mist spraying method as an easy and efficient structure ≪ / RTI >

In recent years, the world has faced various natural disasters with severe weather changes due to climate change such as global warming due to the increase of carbon dioxide by fossil fuel.

To address this issue, the United Nations Framework Convention on Climate Change (UNFCCC) calls for global efforts to reduce greenhouse gas emissions that regulate the anthropogenic emissions of greenhouse gases to prevent global warming.

As part of these efforts, countries around the world are focusing on the development of solar energy, a non-fossil fuel and a sustainable and environmentally friendly alternative energy. South Korea is also adopting a new and renewable energy obligatory system (RPS) We are working hard to expand.

Solar power generation system has many advantages such as waste generation, noise vibration, no secondary environmental pollution, life span of more than 20 years, low operation and maintenance cost, and it is actively installed and operated.

However, in reality, due to deterioration due to temperature rise of the solar module and contamination due to various foreign substances, the power generation efficiency expected in the system design can not be achieved, and the problem of this problem is fundamentally solved to improve the power generation efficiency of the solar power generation system Technology development is needed.

The principle of the photovoltaic generation method is that, in the case of a crystalline silicon solar cell, when a light is incident on a pn-junction solar cell by doping an n-type silicon semiconductor layer into the p-type silicon semiconductor, By generating photoelectro-motive force to generate electricity, the solar module is constructed so that the solar cells can be assembled to efficiently collect generated electricity.

However, in the conversion of solar energy into electricity, the efficiency of solar modules changes sensitively to the given environmental conditions. In particular, the influence of overheating of the module temperature significantly affects the power generation efficiency.

The efficiency of the photovoltaic module is based on the international and domestic standards for efficiency at a module temperature of 25 ° C and a solar radiation intensity of 1,000 W / ㎡. When the surface temperature is raised by 1 ° C, the power generation is reduced by approximately 0.3-0.5% It is known to happen.

Especially in Korea, there are many differences according to the seasons. From June to early September, the temperature of the solar module rises to 60 ~ 90 ℃ and the solar power generation due to the high temperature decreases and the power generation efficiency And the lifetime of the photovoltaic module is shortened, thereby causing serious economic loss.

The pollution problem of the photovoltaic module also causes serious efficiency deterioration. In recent years, it is known that the generation amount of solar modules is reduced by up to 9% when the solar modules are contaminated due to the increasingly serious dust and dust, the increase of scattered dust, algae secretion and various air pollutants. In addition, the shading due to winter snowfall causes a decrease in power generation.

Such various pollutants and snow may affect the lifetime of the photovoltaic module such as corrosion of the photovoltaic module.

In order to solve these problems, Korean Patent Registration No. 10-0662230 (prior art 1) related to cooling and cleaning apparatus for preventing overheating of a photovoltaic power generation system (Prior Art 1), Korea Patent Office Registration No. 10-0954530 (Prior Art 2) 10-1326240 (Prior Art 3), Korean Patent Registration No. 10-1340039 (Prior Art 4), etc. have been disclosed.

The prior arts 1 and 2 have a system for cooling the heat of the solar module by the cooling water flow by spraying the cooling water and a water collecting tank for recovering the contaminated cooling water discharged after the cooling water injection, In the case of a photovoltaic power generation system, there is a problem of waterproofing and leakage of a building structure such as a roof due to the flow of cooling water sprayed, and there arises a problem of corroding the photovoltaic module and its accessories due to the cooling water.

In addition to this, a large amount of water (including cooling water, washing water, snow removal water, etc.) is used for cooling and cleaning the solar module, and there are many regions where it is difficult to supply sufficient water according to the location. There is a problem that it is necessary to provide a water collecting tank for collecting the contaminated cooling water discharged after the injection and a separate water purification facility, etc., so that the installation site, the installation cost, the maintenance cost and the like are increased .

In the prior art 3, the air introduced along the flow path formed on the sidewall of the cooling water injection nozzle is mixed with the cooling water and is jetted to improve the cooling and cleaning effect by the two phase flow by the cooling water and the air It is impossible to solve the problem of waterproofing, leakage and corrosion due to the flow of cooling water, but it is also possible to disperse the cooling water evenly at the injection area by mixing with the natural flow of the cooling water and air, It is not possible to effectively diffuse it.

Although the prior art 4 has a sprinkler for spraying water for cleaning the solar module and an air compressor for removing snow during the winter season, the problem caused by the injection of cooling water is still not solved, and air The operation of the compressor is inefficient.

Accordingly, it is possible to reduce the use of cooling water while maximizing the cooling effect and the cleaning effect while minimizing the additional facilities such as the collecting tank for collecting the contaminated cooling water after the spraying and effectively solving the waterproofing and leakage problem caused by the cooling water flow. A cooling cleaning device for improving the efficiency is required, and a technology development is required.

(Prior Art 1) Korean Patent Registration No. 10-0662230 (Prior art 2) Korean Patent Registration No. 10-0954530 (Prior Art 3) Korean Patent Registration No. 10-1326240 (Prior Art 4) Korean Patent Registration No. 10-1340039

It is an object of the present invention to provide a photovoltaic power generation system equipped with a mist spray type cooling and cleaning device for a solar module which can easily or effectively cool or clean a solar module through a mist spraying method.

The object is achieved by a solar module for collecting sunlight to produce electric power; And a mist spray cooling type cleaning device disposed adjacent to the solar module and cooling or cleaning the solar module through a mist spraying method, Solar power generation system.

The mist spray cooling type cleaning device includes a water pump for pumping water; A water supply line to which water pumped by the water pump is supplied and which is disposed adjacent to the solar module; A plurality of mist spray nozzles detachably connected to the water supply line and spraying mist to the solar module using water supplied through the water supply line; An air compressor for compressing air; A compressed air supply line supplied with compressed air from the air compressor and disposed adjacent to the water supply line; And a plurality of compressed air injection nozzles detachably connected to the compressed air supply line, for spraying compressed air to the photovoltaic module using compressed air supplied through the compressed air supply line.

The fog jet type cooling cleaning device may further include: a temperature measurement sensor for measuring a temperature of the solar module; A rainfall detection sensor for detecting rainfall directed toward the solar module; A controller for controlling the operation of the water pump and the air compressor based on the information of the temperature measurement sensor and the rainfall detection sensor; And a monitoring device in association with the controller, for monitoring the matters relating to solar power generation.

The mist spray-type cooling and cleaning apparatus may further include a compressed air additional supply unit for additionally supplying compressed air to the plurality of mist spray nozzles.

The mist spray-type cooling and cleaning apparatus includes a solar radiation amount meter for sensing a solar radiation amount; An ambient temperature sensor for sensing ambient temperature; And a control solar module, wherein the controller calculates a power generation efficiency of the solar power generation system by comparing the solar power measured through the solar irradiance meter with the actual power generation amount, The correlation between the temperatures of the solar modules is analyzed and the cooling efficiency of the mist-type cooling and cleaning device is calculated through comparison with the control solar modules, and the calculated information can be monitored by the monitoring device.

According to the present invention, it is possible to cool or clean the solar module through the mist spraying method as an easy and efficient structure, thereby improving the power generation efficiency of the solar module.

Particularly, according to the present invention, since fog spraying or compressed air injection using water and compressed air can be performed, it is possible to reduce the amount of cooling water used during cooling of the solar module, Water leakage and corrosion caused by the water and the compressed air can be fundamentally solved and the pressure of the water and the compressed air can be controlled variously to freely adjust the spraying area of the mist, that is, the cooling and cleaning area of the solar module, There is an effect that can be maximized. According to the present invention, not only the cooling effect by the air flow through the single supply of the compressed air but also the pollutant and foreign matter by the compressed air can be effectively cleaned during the rainfall, There is an effect that it can be removed.

Further, according to the present invention, since mist spraying of cooling water such as water is performed on an object, there is an effect of effectively providing a cooling performance in a place where waterproofing, water leakage, corrosion and the like are feared.

In addition, according to the present invention, it is possible to maximize the cooling performance by allowing the water mist to reach the mist spraying area evenly by supplying the compressed air together with the mist spray.

Further, according to the present invention, contaminants or foreign substances are cleaned by supplying only compressed air during rain, thereby reducing cooling water required for cleaning.

In addition, according to the present invention, various types of mist spray nozzles and compressed air spray nozzles can be exchanged in a detachable manner to perform cooling and cleaning operations through various types of mist spray nozzles and compressed air spray nozzles.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic system structural view of a photovoltaic power generation system provided with a mist spray-type cooling and cleaning apparatus for a solar module according to a first embodiment of the present invention; FIG.
2 is an enlarged view of the mist spray nozzle and the compressed air spray nozzle area shown in FIG.
3 is a control block diagram of Fig.
4 is an enlarged view of a mist spray nozzle and a compressed air spray nozzle area in a solar power generation system equipped with a mist spray type cooling cleaner for a solar module according to a second embodiment of the present invention.
5 is an enlarged view of a mist spray nozzle and a compressed air spray nozzle area in a solar power generation system equipped with a mist spray type cooling cleaner for a solar module according to a third embodiment of the present invention.
6 is a schematic system structural view of a photovoltaic generation system equipped with a mist spray cooling type cleaning apparatus for a solar module according to a fourth embodiment of the present invention.
FIG. 7 is a control block diagram of FIG. 6. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention and to fully disclose the scope of the invention to a person having ordinary skill in the art to which the present invention belongs. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. And (used) terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention.

In the present specification, the singular form includes plural forms unless otherwise specified. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic system structural view of a photovoltaic power generation system provided with a mist spray-type cooling cleaning apparatus for a solar module according to a first embodiment of the present invention. An enlarged view of the nozzle region, and Fig. 3 is a control block diagram of Fig.

Referring to these drawings, the photovoltaic power generation system according to the present embodiment is an easy and efficient structure that can cool or clean a photovoltaic module through a mist spraying method, An optical module 100 and a mist spray cooling cleaner 110 disposed adjacent to the solar module 100 and cooling or cleaning the solar module 100 through a mist spraying method.

Particularly, in the case of this embodiment, since the mist spray-type cooling and cleaning device 110 is used, fog spraying or compressed air spraying using water and compressed air is possible. Accordingly, when the solar module 100 is cooled, the amount of cooling water used is reduced, and at the same time, the cooling water flow is prevented from occurring at the bottom, thereby making it possible to fundamentally solve waterproof, leakage and corrosion problems caused by cooling water.

In addition, by controlling the supplied water and the pressure of the compressed air in various manners, it is possible to freely adjust the mist spray area, that is, the cooling and washing area of the solar module 100, thereby maximizing the applicability. In addition to the cooling effect by the air flow through the single supply of compressed air, it is possible to effectively clean contaminants and foreign matter caused by compressed air at the time of rainfall, It is possible to provide an additional effect.

In the case of this embodiment, since the mist spray-type cooling and cleaning device 110 is used, it is easy to install in the existing solar power generation complex, and it is very easy to demolish and maintenance work later.

The mist spray-type cooling cleaning apparatus 110 that provides such various effects includes a water pump 113, a water supply line 115, a plurality of mist spray nozzles 120, an air compressor 123, a compressed air supply line 125 And a plurality of compressed air injection nozzles 130.

The water pump 113 is a device for pumping water (cooling water or washing water), and is connected to the water tank 111. The water pump 113 pressurizes the water tank 111 by a pressure necessary for mist spraying to supply water to the upper mist spray nozzle 120.

The capacity of the water pump 113 and the water tank 111 can be changed as much as the number of solar modules 100 installed.

The water supply line 115 is a pipe which is supplied with water to be pumped by the water pump 113 and is disposed adjacent to the solar module 100. Actually, all the lines from the water pump 113 to the position adjacent to the solar module 100 can be regarded as the water supply line 115.

The water supply line 115 may be made of a metal material or a plastic material, and it is sufficient if it has a strength enough to withstand the necessary pressure.

The mist spray nozzle 120 is detachably coupled to the water supply line 115 and serves to spray mist to the solar module 100 using water supplied through the water supply line 115.

Since the water supply line 115 is long and the area of the solar module 100 is wide, the mist spray nozzles 120 can be coupled in many places along the length of the water supply line 115.

It is preferable that the mist spray nozzle 120 is detachably coupled to the end of the water supply branch line 115a branched from the water supply line 115 because various structures can be applied.

For example, the mist spraying nozzle 120 may be applied to various types such as a short-distance type and a long-distance type, a wide-angle type and a narrow-angle type, a round and sector type, a rotary type and a sprinkler type.

At this time, the mist spraying nozzle 120 may be a fixed type, or may be driven by a separate driving device to the left or right, or may be applied as a sprinkler type, thereby enlarging the mist spraying area. In the drawing, the mist spray nozzles 120 are disposed on the upper portion of the solar module 100, but the mist spray nozzles 120 may be disposed on the lower portion of the solar module 100.

The mist spray nozzle 120 serves to cool or clean the surface of the solar module 100, in particular, to cool the surface of the solar module 100 by spraying mist instead of water through the supplied water.

Here, the mist spraying nozzle 120 can be applied to any type as long as the water does not flow to the bottom floor of the photovoltaic module 100 which is mist-sprayed after the mist spraying. The water (cooling water) to be sprayed may be any water quality that does not interfere with mist spraying such as a water supply source or a ground water source.

Here, the size of the water jet of the mist jet is not specified separately, and may be expressed in various forms such as mist spray, but in any case, water (cooling water) after jetting falls to the bottom floor of the solar module 100, So long as there is no water flow on the ground, that is enough.

The air compressor 123, which is called an air compressor, is a device for compressing air. The air compressor 123 is connected to the air cleaner 121 so as to compress the clean air, not the contaminated air.

The compressed air supply line 125 is a pipe supplied with compressed air from the air compressor 123 and disposed adjacent to the water supply line 115. Actually, all of the lines from the air compressor 123 to the position adjacent to the solar module 100 are regarded as the compressed air supply line 125. For convenience of installation, the compressed air supply line 125 is connected to the water supply line 125, (Not shown).

The compressed air supply line 125 may be made of metal or plastic, and it is sufficient if it has strength enough to withstand the required pressure.

The compressed air injection nozzle 130 is detachably connected to the compressed air supply line 125 and is configured to inject compressed air to the solar module 100 using compressed air supplied through the compressed air supply line 125 It plays a role. Since the compressed air supply line 125 is long and the area of the photovoltaic module 100 is wide, the compressed air injection nozzles 130 can be coupled in many places along the length direction of the compressed air supply line 125 have.

At this time, it is preferable that the compressed air injection nozzle 130 is detachably coupled to the end of the compressed air supply branch line 125a branched from the compressed air supply line 125 because various structures can be applied.

The compressed air injection nozzle 130 serves to cool or clean the surface of the solar module 100 by injecting compressed air through the supplied compressed air.

Particularly, it is possible to effectively clean contaminants and foreign matter caused by compressed air during rainfall as well as cooling effect by air flow through independent supply of compressed air, and also to remove snowfall by compressed air even in winter season have.

The compressed air injection nozzle 130 may also be applied to various types as well as the mist injection nozzle 120. That is, various types such as a general type, a flippy type, and a bundle type are possible, and they may be fixedly connected, or may be provided with a separate driving device so as to be driven laterally or sprinklerly. In the latter case, the injection range of the compressed air can be widened and the efficiency can be maximized. For example, it is possible to maximize the cooling area by widening the fog spray area by diffusing the sprayed mist, or maximizing the cleaning efficiency as it is sprayed alone.

The fog jet type cooling and cleaning device 110 further includes a temperature measurement sensor 141, a rainfall detection sensor 142, a controller 150, and a monitoring device 150.

The temperature measurement sensor 141 measures the temperature of the solar module 100 and the rainfall detection sensor 142 detects the rainfall directed toward the solar module 100.

The controller 150 controls the operations of the water pump 113 and the air compressor 123 based on the information of the temperature measurement sensor 141 and the rainfall detection sensor 142.

For example, the controller 150 controls the water pump 113 to operate when the temperature is higher than a predetermined temperature by using the temperature information transmitted from the temperature measurement sensor 141, The optical module 100 can be cooled.

Here, the temperature measurement sensor 141 may be located on the surface of the solar module 100 to directly measure the surface temperature of the solar module 100, or may be connected to the standby temperature sensor (not shown) The temperature can be measured. In either case, the information can be transmitted to the controller 150 with the comparison value compared with the predetermined temperature.

The controller 150 controls the operation of the air compressor 123 based on the information of the rainfall sensor 142, that is, the predetermined rainfall or more, The module 100 may be cooled or cleaned.

In particular, when snowing in the winter, the air compressor 123 is operated to spray the compressed air through the compressed air injection nozzle 130, thereby making it possible to remove snow from the solar module 100 or to prevent snowing.

In addition, it is also possible to generate an air flow on the upper part of the solar module 100 by only the compressed air flow without spraying the water mist through the mist injection nozzle 120, thereby providing a cooling effect. That is, the air compressor 123 may be operated to perform the cooling operation of the solar module 100 using only the compressed air injected through the compressed air injection nozzle 130.

In addition, the controller 150 controls the operation of the water pump 113 and the air compressor 123 to vary the amount of water and compressed air supplied to vary the fog injection quantity, the mist injection area, the compressed air injection quantity, Air injection area can be controlled.

The controller 150 that performs various functions as described above may include a central processing unit 151, a memory 152, and a support circuit 153.

The central processing unit 151 can be industrially applied to control the operation of the water pump 113 and the air compressor 123 based on the information of the temperature measurement sensor 141 and the rainfall detection sensor 142 in this embodiment Lt; RTI ID = 0.0 > computer processors.

The memory 152 (MEMORY) is connected to the central processing unit 151. The memory 152 may be a computer-readable recording medium and may be located locally or remotely, and may be any of various types of storage devices, such as random access memory (RAM), read-only memory (ROM), floppy disk, hard disk, At least one or more memories.

A support circuit 153 (SUPPORT CIRCUIT) is coupled with the central processing unit 151 to support the typical operation of the processor. Such a support circuit 153 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

The controller 150 controls the operations of the water pump 113 and the air compressor 123 based on the information of the temperature measurement sensor 141 and the rainfall detection sensor 142. [ At this time, a series of processes or the like in which the controller 150 controls the operation of the water pump 113 and the air compressor 123 based on the information of the temperature measurement sensor 141 and the rainfall detection sensor 142 is stored in the memory 152, Lt; / RTI > Typically, a software routine may be stored in the memory 152. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

Meanwhile, the monitoring device 150 is associated with the controller 150 and monitors the solar power generation. The inverter 170 filters the power generation amount information.

At this time, the monitoring device 150 can not only read the operation state and each information value of all the equipments but also can calculate and output the cooling or cleaning efficiency by the mist spray type cooling and cleaning device 110 in detail.

According to the present invention having the structure and function as described above, it is possible to cool or clean the solar cell module 100 through the mist spraying method as an easy and efficient structure, thereby improving the power generation efficiency of the solar cell module 100 .

Particularly, according to the present invention, fog spraying or compressed air injection using water and compressed air can be performed, so that the amount of cooling water used during cooling of the solar cell module 100 can be reduced, and at the same time, The water spray, the water leakage, and the corrosion problem due to the cooling water can be fundamentally solved, and the pressure of the supplied water and the compressed air can be variously controlled to freely adjust the mist spray area, that is, the cooling and cleaning area of the solar module 100 To maximize applicability. According to the present invention, not only the cooling effect by the air flow through the single supply of the compressed air but also the pollutant and foreign matter by the compressed air can be effectively cleaned during the rainfall, Can be removed.

Further, according to the present invention, since mist spraying of cooling water such as water is performed on an object, cooling performance can be effectively provided in a place where waterproofing, water leakage, corrosion, or the like is a concern.

According to the present invention, it is possible to maximize the cooling performance by allowing the water fog to reach the mist spraying area evenly by supplying compressed air together with the mist spray.

According to the present invention, since pollutants or foreign matters are cleaned by supplying compressed air only during rainfall, cooling water required for cleaning can be saved.

In addition, according to the present invention, various types of mist spray nozzles 120 and the compressed air spray nozzles 130 can be exchanged in a detachable manner to cool various types of mist spray nozzles 120 and compressed air spray nozzles 130 And a cleaning operation can be performed.

4 is an enlarged view of a mist spray nozzle and a compressed air spray nozzle area in a solar power generation system equipped with a mist spray type cooling cleaner for a solar module according to a second embodiment of the present invention.

As described above, the mist spray nozzles 220 are connected to the water supply line 215, and the compressed air spray nozzles 230 are connected to the compressed air supply line 225, respectively, to spray fog or spray compressed air.

At this time, in the case of the mist spraying nozzle 220, compressed air for spraying mist may or may not be required depending on the kind thereof.

In this embodiment, two-phase flow injection is required. In this case, the compressed air addition supply part 227 for further supplying compressed air to the mist injection nozzle 220 is further needed.

In this embodiment, a compressed air dummy pipe 227 is used as the compressed air additional supply unit 227. A separate compressed air dummy pipe 227 is further connected to the mist injection nozzle 220, (225), it can be applied to the air injection required for compressed air.

Even if the structure of this embodiment is applied, the solar module 100 can be cooled or cleaned through the mist spraying method as an easy and efficient structure, and the power generation efficiency of the solar module 100 can be improved.

5 is an enlarged view of a mist spray nozzle and a compressed air spray nozzle area in a solar power generation system equipped with a mist spray type cooling cleaner for a solar module according to a third embodiment of the present invention.

Referring to this figure, also in this embodiment, the mist spray nozzles 320 are connected to the water supply line 315, and the compressed air spray nozzles 330 are connected to the compressed air supply line 325, respectively, Spray compressed air.

In this case, in the case of the mist spraying nozzle 320, the present embodiment is a case of two-phase flow spraying requiring compressed air, and the compressed air is supplied to the mist spraying nozzle 320, (327).

In the case of this embodiment, the compressed air addition supply part 327 includes a compressed air dummy line 327a and a compressed air dummy pipe 327b connecting the compressed air dummy line 327a and the mist injection nozzle 320. [

By further applying the compressed air additional supply portion 327 in this manner, it is applicable to the air injection required for compressed air.

Even if the structure of this embodiment is applied, the solar module 100 can be cooled or cleaned through the mist spraying method as an easy and efficient structure, and the power generation efficiency of the solar module 100 can be improved.

FIG. 6 is a schematic system structural view of a photovoltaic power generation system provided with a mist spray-type cooling cleaning apparatus for a solar module according to a fourth embodiment of the present invention, and FIG. 7 is a control block diagram of FIG.

Referring to these drawings, the present embodiment also includes a mist spray type cooling and cleaning apparatus 410. The mist spray type cooling and cleaning apparatus 410 applied to the present embodiment includes a solar radiation amount meter 143 for sensing a solar radiation amount, An atmospheric temperature sensor 144 for sensing the ambient temperature, and a control solar module 100a.

In this structure, the controller 450 calculates the power generation efficiency of the photovoltaic power generation system by comparing the amount of solar radiation measured through the irradiation amount meter 143 with the actual power generation amount, The cooling efficiency of the mist spray-type cooling cleaning apparatus 410 can be calculated by comparing the temperature of the module 100 with that of the control solar module 100a. At this time, the calculated information can be monitored by the monitoring device 460, and the cooling efficiency of the mist jet cooling cleaner 410 can be calculated and used as an index.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: Photovoltaic module 110: Fog jet cooling cleaning device
111: water tank 113: water pump
115: water supply line 120: mist spray nozzle
121: air purifier 123: air compressor
125: compressed air supply line 130: compressed air injection nozzle
141: Temperature measurement sensor 142: Rainfall detection sensor
150: Controller 160: Monitoring device
170: Inverter

Claims (5)

A solar module for collecting sunlight to produce electric power; And
A mist spray cooling cleaning device disposed adjacent to the solar module and cooling or cleaning the solar module through a mist spraying method; , ≪ / RTI &
The mist spray-type cooling and cleaning apparatus includes:
A water pump to pump water;
A water supply line to which water pumped by the water pump is supplied and which is disposed adjacent to the solar module;
A plurality of mist spray nozzles detachably connected to the water supply line and spraying mist to the solar module using water supplied through the water supply line;
An air compressor for compressing air;
An air purifier for purifying the air in the air compressor;
A compressed air supply line supplied with compressed air from the air compressor and disposed adjacent to the water supply line;
A plurality of compressed air injection nozzles detachably connected to the compressed air supply line and configured to inject compressed air into the solar module using compressed air supplied through the compressed air supply line;
A compressed air addition supply unit for additionally supplying compressed air to the plurality of mist spray nozzles;
A temperature measurement sensor for measuring the temperature of the solar module;
A rainfall detection sensor for detecting rainfall directed toward the solar module;
A controller for controlling the operation of the water pump and the air compressor based on the information of the temperature measurement sensor and the rainfall detection sensor;
A monitoring device associated with the controller for monitoring solar power generation;
An inverter for filtering power generation amount information of the photovoltaic module;
Solar radiation system to detect solar radiation;
An ambient temperature sensor for sensing ambient temperature; And
Control Photovoltaic Module; ≪ / RTI >
Wherein the controller selectively controls at least one of the water pump and the air compressor in response to a sensing signal sensed by the temperature measurement sensor and the rainfall sensing sensor to spray mist through the plurality of mist spray nozzles, Jetting compressed air through a plurality of compressed air injection nozzles,
The controller calculates the power generation efficiency of the solar power generation system by comparing the amount of solar radiation measured through the solar radiation gauge with the actual power generation amount and analyzes the correlation between the atmospheric temperature from the atmospheric temperature sensor and the temperature of the solar cell module Wherein the cooling efficiency of the fog jet cooling cleaner is calculated through comparison with the control photovoltaic module, and the calculated information is monitored by the monitoring device,
Wherein the solar cleaner is a solar cleaner. delete delete delete delete

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