KR101199236B1 - System of managing efficiency enhancement equipment for solar photovoltaic power facilities - Google Patents

Abstract

The present invention relates to a management system of a photovoltaic facility efficiency improving device. The management system of the solar energy efficiency improving device of the present invention, by maintaining the efficiency of the solar module by spraying the cooling water filtered through the filter to the solar module through the cooling water injection means via the pump and valves A management system of 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 management 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 adjusting the injection of the cooling water appropriately according to weather conditions, seasons, conditions of the solar module. . 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 a new revenue source by managing the solar power plant efficiency improving device on behalf of the user or by providing an environment that can be easily managed by the user.

Description

SYSTEM OF MANAGING EFFICIENCY ENHANCEMENT EQUIPMENT FOR SOLAR PHOTOVOLTAIC POWER FACILITIES}

The present invention relates to a management system of a solar power plant efficiency improving device, and more particularly, it is possible to effectively manage a plurality of solar power plant efficiency improving devices, and to provide a solar power plant efficiency improving device conveniently and easily. The present invention relates to a management system of a solar power plant efficiency improving device that can be monitored and remotely managed.

Generally, the method of using solar energy is divided into a method using solar heat and a method using sunlight. 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.

Among the above-mentioned methods, photovoltaic power generation is a photovoltaic effect in which a photovoltaic panel having n-type doping on a silicon crystal and pn-junction is irradiated with sunlight to generate an electromotive force due to the photovoltaic energy, To generate electricity.

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.

Unlike existing energy sources such as fossil raw materials, sunlight is a clean energy source that does not have the danger of global warming, such as greenhouse gas emissions, noise, environmental destruction, etc., and there is no fear of depletion. Unlike other types of wind and seawater, solar power generation facilities are free from installation and 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 that dirt may easily accumulate on the solar panel due to meteorological phenomena such as yellow sand and bad weather. If dirt accumulates on the photovoltaic module, the light absorption rate of the photovoltaic module is significantly reduced, and thus the power generation efficiency may also be reduced.

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 described above, the solar power plant efficiency improving facility uses a considerable volume of cooling water (functional cooling water, washing water, snow removal water, etc., but 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, it is possible to provide an integrated management system that can integrate and manage a plurality of solar power plant efficiency improving devices conveniently and easily through remote control.

In order to achieve the above object, the present invention, by spraying the cooling water filtered through the filter to the photovoltaic module through the coolant injection means via the pump and the valve to maintain the efficiency of the photovoltaic module efficiency A management system for an enhancement device, comprising: a controller for controlling the operation of the pump and valve; And 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. It may include a sensor unit for generating data. In addition, the integrated management server may control the valve driving unit and the pump driving unit, and receives the data from the sensor unit to monitor the sensor unit.

The sensor unit may include first and second pressure sensors installed at front and rear ends of the filter, respectively; A temperature sensor measuring a temperature of the solar module, a temperature of cooling water, or an air temperature; Light amount sensor for measuring the light transmittance of the solar module; Pollution degree sensor for measuring the pollution degree of the solar module; Rain sensor for determining whether it is raining; And it may include a theft detection sensor for detecting whether the solar power plant or the efficiency improving device theft.

The management system of the solar power plant efficiency improving apparatus may include a wireless communication terminal connected to the integrated management server to monitor and control the efficiency improving apparatus.

The wireless communication terminal may be, for example, a smartphone, an iPad or a computer.

Signal transmission and reception between the valve drive unit, the pump drive unit, the sensor unit and the integrated management server may be made through a communication network selected from the group consisting of wired and wireless LAN, CDMA mobile communication, WiBro and power line communication. .

The transmission and reception of signals between the integrated management server and the wireless communication terminal may be performed through a communication network selected from the group consisting of a mobile communication network, a wireless len and a WiBro.

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.

The filter may be a device for filtering foreign matter in the cooling water or a softening device for softening the cooling water.

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

In addition, since the efficiency of the photovoltaic power generation facility is managed at a long distance by using a remote control, it is possible to integrate and manage a number of solar power equipment efficiency improving device and greatly reduce the cost of managing the efficiency improving device. . In addition, by applying the web-based cloud computing, administrators can manage the solar power plant efficiency improving device more conveniently and easily.

Furthermore, it is possible to create a new revenue source by managing the solar power plant efficiency improving device on behalf of the user or by providing an environment that can be easily managed by the user.

1 is a conceptual diagram of a photovoltaic power plant efficiency improving apparatus and management system according to an embodiment of the present invention.
Figure 2 is a schematic block diagram showing the configuration of the management system of the photovoltaic facility efficiency improving apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 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 solar power plant efficiency improving apparatus and management system 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 filter 8. ), The controller 50, the integrated management server 60 and the wireless communication terminal 70. In addition, the photovoltaic power plant efficiency improving apparatus further includes a coolant supply pipe for transferring the coolant by interconnecting the filter (8), the storage tank (10), the pump (20), the valve (30), and the coolant spray means (40). do.

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 filter 8 may be a device for filtering foreign matter in the cooling water as a means for filtering the cooling water or a softening device for softening the cooling water.

When the filter 8 is configured as a softener, the filter 8 may include a cation exchange resin. The softening device may remove calcium ions and magnesium ions in the cooling water to prevent the buildup of scale on the solar module and the cooling water supply pipe. The water softener may be replaced by a softener supply unit for supplying softeners such as sodium phosphate, sodium borate, sodium carbonate, ammonium hydroxide, sodium hydroxide and potassium hydroxide in addition to the cation exchange resin.

The filter 8 is preferably disposed at the front end of the pump 25 (the position where the coolant is first delivered based on the flow of the coolant) so that the coolant is filtered and then delivered to the pump 25. That is, as shown in Figure 1 may be disposed in front of the storage tank 1, or may be disposed between the storage tank 1 and the pump 25. In this way, by placing the filter 8 in front of the pump 25 to prevent the accumulation of foreign matter or scale in the pump 25 to enable a smooth flow of the cooling water.

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, the sensor unit 53 for detecting and measuring information on the status of the photovoltaic power generation equipment and the efficiency improving apparatus 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.

According to this management system, managers can integrate and manage photovoltaic power plant efficiency improvement facilities located in various regions remotely and provide specialized technical skills for management operation to provide efficient management operation and create new revenue sources. It can be created.

The wireless communication terminal 70 is a device for monitoring and controlling the photovoltaic power generation facility efficiency improving device by connecting to the integrated management server 60, by using the wireless communication terminal 70 other than the space where the integrated management server 60 is located. It is convenient and easy to monitor and control the photovoltaic power plant efficiency improving device in various places of the city.

 The manager not only manages and operates the solar efficiency improving facilities by directly accessing the integrated management server, but also improves the solar efficiency by using a wireless communication terminal that monitors and controls the efficiency improving apparatus by accessing the integrated management server. Facilities can also be managed.

The wireless communication terminal 70 may be used any device capable of wireless communication with the integrated management server. For example, the wireless communication terminal 70 may be a portable wireless terminal such as a smartphone or an iPad, and various computers such as a desktop or table computer, a notebook computer, a wall computer, and a tablet PC.

The transmission and reception of signals between the integrated management server and the wireless communication terminal may be performed through, for example, a mobile communication network such as a 3G network, a wireless network such as Wi-Fi (Wireless Fidelity), or a WiBro.

The management system of the present invention can apply the cloud computing to the control of the solar power plant efficiency improving apparatus, it is possible to monitor and control the solar power plant efficiency improving apparatus without place restrictions.

In addition, the wireless communication terminal 70, that is, the client PC is enough to run the web, the storage space is not necessary because it can increase the portability, and the initial purchase cost can be lowered. In addition, various devices can be used as terminals and a consistent user environment can be realized through services. Furthermore, there is an advantage that can be stored more securely by keeping the user's data on a highly reliable server.

On the other hand, the integrated management server 60 may provide the wireless communication terminal 70 with information on the current state of the photovoltaic power generation equipment and efficiency improving apparatus, as well as specialized information on how to deal with such conditions. It may provide a problem that may occur with respect to the control command received from the wireless communication terminal 70, and in the event of an emergency such as theft, failure, snowfall, rainfall, lack of cooling water, freezing of the cooling water, control commands of the wireless communication terminal 70. Since the integrated management server 60 can directly perform first aid before receiving, the user can control the solar power plant efficiency improving device more easily and conveniently.

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

2, a remote control system according to an embodiment of the present invention includes a controller 50, integrated management server 60 and a wireless communication terminal 70, the controller 50 is a valve drive unit ( 51), the pump drive unit 52 and the 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 includes a temperature sensor 81, a light quantity sensor 82, a pollution degree sensor 83, a raindrop sensor 84, a burglar detection sensor 85, a first pressure sensor 86 and a first sensor. 2 may include a pressure sensor 87 and the like.

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 85 detects theft of the photovoltaic power generation facility or efficiency improving device, and provides the detected result to the integrated management server 60. For example, the burglar detection sensor 85 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 first and second pressure sensors (86, 87) are respectively located at the front and rear ends of the filter (8) to measure the water pressure of the cooling water supply pipe to provide to the integrated management server (60). The integrated management server 60 monitors the difference in pressure measured by the first pressure sensor 86 and the second pressure sensor 87 to inform the filter replacement time. That is, if the foreign matter or scale is not accumulated or less accumulated in the filter (8), the pressure difference between the first and second pressure sensors (86, 87) will appear small, but as the foreign matter or scale accumulates, the pressure difference increases, so that the predetermined pressure When the difference is integrated management server 60 informs this. The pressure difference set at the replacement timing of the filter 8 may be appropriately set in consideration of the capacity of the filter 8 and the state of the cooling water.

In addition, the integrated management server 60 may terminate the start of the efficiency improvement equipment when the pressure measured by the first and second pressure sensors (86, 87) is out of a 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. Meanwhile, in order to more effectively determine an accident situation such as freezing or leaking in the cooling water supply pipe, an additional pressure sensor besides the first and second pressure sensors 86 and 87 may be disposed at another position of the cooling water supply pipe.

The integrated management server 60 receives and stores the detected signal from the sensor unit 53 and transmits it to the wireless communication terminal 70. In addition, by grasping the current state of the photovoltaic power generation equipment and the efficiency improvement equipment from the received signal to adjust the driving of the pump 20 and opening and closing of the valve 30 accordingly, wherein the integrated management server 60 is a wireless communication terminal According to the control command of (70), it is possible to present an appropriate control method to the wireless communication terminal 70 according to the current state of the photovoltaic power generation equipment and the efficiency improving equipment. In addition, in the event of an emergency, emergency treatment may be performed before the control command of the wireless communication terminal 70 is received.

On the other hand, the integrated management server 60 may include a timer so that the coolant is injected only during the driving time set by the control command of the wireless communication terminal 70, 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 office and transmit it to the wireless communication terminal 70 to adjust the injection amount of the coolant or the coolant storage amount of the storage tank 10 accordingly.

According to the management system of the photovoltaic power plant efficiency improving apparatus according to the present invention described above, it is possible to efficiently control the photovoltaic power plant efficiency improving apparatus by controlling the injection of cooling water appropriately according to weather conditions, seasons, conditions of the photovoltaic module and the like. In addition, by applying web-based cloud computing, the administrator can manage the solar power plant efficiency improving device more conveniently and easily.

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.

7: solar module 8: filter
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 70: wireless communication terminal
81: temperature sensor 82: light intensity
83: pollution sensor 84: rain sensor
85: theft detection sensor 86: first pressure sensor
87: second pressure sensor

Claims (11)

As a management system of a photovoltaic power plant efficiency improving device that maintains and improves the efficiency of a photovoltaic module by spraying the coolant filtered through a filter through a pump and a valve to a photovoltaic module through a coolant injection means.
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, receives the data from the sensor unit and monitors the sensor unit,
The sensor unit,
First and second pressure sensors respectively installed at the front and rear ends of the filter;
A temperature sensor measuring a temperature of the solar module, a temperature of cooling water, or an air temperature;
Light amount sensor for measuring the light transmittance of the solar module;
Pollution degree sensor for measuring the pollution degree of the solar module;
Rain sensor for determining whether it is raining; And
It includes a theft detection sensor for detecting whether the solar power generation facility or the efficiency improving device theft,
The integrated management server monitors the difference in pressure measured by the first and second pressure sensors to notify the replacement time of the filter management system, characterized in that the solar power plant efficiency improvement apparatus.
delete delete The method of claim 1,
And a wireless communication terminal connected to the integrated management server to monitor and control the efficiency improving apparatus.
5. The method of claim 4,
The wireless communication terminal is a smart phone, iPad or a computer, characterized in that the management system of the solar power plant efficiency improving apparatus.
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. Management system of photovoltaic power plant efficiency improving device.
5. The method of claim 4,
Transmitting and receiving the signal between the integrated management server and the wireless communication terminal is a management system of the solar power plant efficiency improvement apparatus, characterized in that made through a communication network selected from the group consisting of a mobile communication network, wireless len and WiBro.
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 management 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. Management system of the solar power plant efficiency improving apparatus, characterized in that.
The method of claim 1,
The filter is a management system of the solar power plant efficiency improving apparatus, characterized in that for filtering foreign matter in the cooling water.
The method of claim 1,
The filter is a management system of the solar power plant efficiency improving apparatus, characterized in that the softening device for softening the cooling water.

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