KR102336678B1 - Photovoltaic panel cleaning robotic device - Google Patents

Abstract

The present invention has a configuration in which in a state where one side of a brush (520) is rotatably connected to a driving shaft (520a) of a brush motor (510a), a rotary roller (530a) is installed on the other side of the brush (520) to roll on a rail (110a) formed on an upper side of a first solar cell module (100a), a plane of the first solar cell module (100a) is installed in a longitudinal direction of the brush (520) in a contact manner, and the brush motor (510a) is connected to a structure (600a) by a hinge (510b), when the brush motor (510a) rotates, the rotary roller (530a) moves while rotating in a rotating direction of the rotary roller (530a) on the rail (110a) about the hinge (510b), and at the same time, the brush (520) rotates as if it rotates by a rotational force of the brush motor (510a) to clean a surface of the first solar cell module (100a). The present invention can efficiently manage and operate the solar power plant.

Description

A device that informs the cleaning time of a solar power plant {Photovoltaic panel cleaning robotic device}

The present invention relates to a device for notifying a cleaning time of a solar power plant, and more particularly, to a second solar cell in which the amount of power generated by the first solar cell module is not cleaned after cleaning a first solar cell module equipped with a cleaning system Provided is a system for cleaning the solar cell array installed in the entire solar cell array power plant when there is a difference more than a standard value compared with the power generation power of the module.

Recently, as environmental problems of the earth become serious, interest in new/renewable energies is increasing worldwide, and as carbon dioxide emission credits are commercialized internationally, it is urgent in each country to prepare measures to secure carbon dioxide emission rights. In Korea, regulations on carbon dioxide emissions and incentives for new and renewable energy facilities have been institutionalized and implemented. Accordingly, as a power generation system using solar power has been recommended as a major power generation system in recent years, many facilities have been developed and installed and operated in the field. As such a photovoltaic power generation system is installed outdoors where direct exposure to sunlight is secured due to the characteristics of the device, or installed in a secluded place where the right to sunlight can be secured, it is difficult for an operator to directly monitor or control the system.

In view of this, the configuration of the conventional photovoltaic power generation monitoring system of the Republic of Korea Patent Office Registration No. 10-1032489 includes a plurality of solar cell modules for generating power from sunlight;

A first sensor module for measuring the amount of power generated through the solar cell module, a second sensor module for measuring at least one of a temperature and an amount of insolation at a location where the solar cell module is installed and outputting it as meteorological data, the amount of power generated and the a photovoltaic device having a control module that checks an operation state using at least one of weather data and determines whether to clean the solar cell module or whether to transmit data according to the checked operation state;

a connection terminal box equipped with a power output terminal of the solar cell module and a photovoltaic device; and a comprehensive management device for monitoring and remote control of the photovoltaic device by collecting and analyzing at least one of the power generation amount and weather data from the photovoltaic device as monitoring data,

The control module further acquires unique identification information from the first sensor module or the second sensor module, and the amount of power generated at the current time is different from the amount of power generated at the previous time by more than a reference value.

If there is a difference of more than a reference value in the amount of power generated at the present time from other adjacent solar cell modules using the unique identification information, the operation state of the target solar cell module is recognized as an abnormal state, and the solar cell module is cleaned or data is transmitted It is characterized by determining

It is a system that determines whether to clean the solar cell module by comparing the previous generation and the current generation.

As a result, when the weather continues to flow and the amount of sunlight is irregular, the information is irregular in the comparison of the previous generation and the current generation, so it becomes reliable information.

And if you look at the photovoltaic panel cleaning robot device of Publication No. 10-2020-0109066, it is a device that cleans the entire photovoltaic power plant.

As devised in view of the above conventional problems, the present invention installs a cleaning system in the first photovoltaic module sample, and does not install a cleaning system in the other second photovoltaic module sample.

Then, after cleaning the first solar cell module equipped with the cleaning system, if there is a difference of more than a standard value compared to the amount of power generated by the first solar cell module and the amount of power generated by the second solar cell module that is not cleaned, the entire solar cell array power plant A system for cleaning an installed solar cell array is provided.

According to one aspect of the present invention, one side of the brush 520 is rotatably connected to the drive shaft 520a of the brush motor 510a, and the other side of the brush 520 is on the upper side of the first solar cell module 100a. A rotary roller 530a is installed so as to roll on the formed rail 110a, the longitudinal direction of the brush 520 is installed so that the plane of the first solar cell module 100a is in close contact, and the brush motor 510a is a structure ( Connected to 600a) with a hinge (510b),
When it rains, rainwater flows down from the first solar cell module 100a installed at an angle to form a rain gutter 600 so that it is collected at the lower end of the slope of the first solar cell module 100a, and flows from the rain gutter 600 a water channel 610 through which falling rainwater is discharged;
On one side of the water channel 610, an operation unit 620 that moves or descends when it is interfered with by rainwater flowing into the water channel 610 is positioned.
In the operation unit 620, one side of a lever 621 is connected to the operation unit 620, a weight 622 is formed on the other side of the lever 621, and the central portion of the lever is a lever device connected by a hinge 623 ( 624) and;
Interference with the lever device 624 on the upper side or the lower side of the lever device 624
a switch 630 that turns on/off the power;
When the switch 630 is turned on/off, the power of the battery 700 charged in the solar cell module is applied or blocked through the control unit 500d, and the brush motor 500a operates and
One side of the brush 520 is connected to the driving part of the brush motor 500a, and the longitudinal direction of the other side of the brush 520 is in close contact with the plane of the first solar cell module 100a.
When it rains, rainwater flows down from the first solar cell module 100a installed at an angle, is collected and flows into the water channel 610 at the lower end of the slope of the first solar cell module 100a, and the water channel 610 is located at the lower end of one side. When the operating unit 620 is hit (interfered) to lower the operating unit 620 by a certain distance,
When power is applied to the brush motor 500 through the control unit by turning on the switch 630 while the weight 622 formed on one side of the lever 621 rotates around the hinge 632 to ascend and descend.
As the brush motor 510a rotates, the rotary roller 530a moves while rotating in the rotational direction of the rotary roller 530a on the rail 110a about the hinge 510b, and at the same time the brush 520 moves. The surface of the first solar cell module 100a is cleaned while rotating as if rotating by the rotational force of the brush motor 510a.
The amount of power generated by the first solar cell module 100a, which periodically cleans the upper plane of the first solar cell module 100a, is the second solar cell in which the upper plane of the second solar cell module 100b is not cleaned. A device for informing the cleaning timing of a solar power plant, characterized in that the entire plane of the solar cell array 100 is cleaned when there is a difference of more than a reference value compared to the amount of power generated by the module 100b.

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As described above, in the present invention, if the amount of power generated by the first solar cell module equipped with the cleaning system differs by more than a reference value compared to the amount of power generated by the second solar cell module without the cleaning system device, the entire solar cell array power plant is installed. By providing a monitoring system to clean the solar cell array, it is possible to effectively manage and operate the solar cell power plant.

In particular, since it is configured to wash the first solar cell module using the rainwater on a rainy day, the structure is simple and the facility cost is very low.

1 is a schematic diagram of a photovoltaic power generation system according to an embodiment of the present invention;
2 is a monitoring system of a photovoltaic power plant according to an embodiment of the present invention;
Diagram,
3 is a perspective view of a solar cell array with a device for notifying the cleaning time of the solar power plant of the present invention;
4 is a perspective view of a device for informing the cleaning time of the solar power plant of the present invention;
5 is a perspective view of a device for notifying the cleaning time of another solar power plant of the present invention;
6 is a flowchart of an embodiment of the present invention;
7 is a view of an embodiment in a state in which the shape of the operation unit is different from that of FIG. 5;
8 is a perspective view of a device for notifying the cleaning time of another solar power plant of the present invention.

The embodiment will be described in detail with reference to the accompanying drawings, but the same or corresponding components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted.

First, in the solar cell array 100 , a plurality of solar cell modules may be configured as an array to output a DC current and provide it to the connection panel 200 . In the solar cell array 100 , a plurality of solar cell modules that convert solar energy into electrical energy and output are connected in series, and a plurality of solar cell arrays may be connected to one connection panel.

A plurality of solar cell arrays 100 may be connected in parallel to the connection panel 200 . The connection panel 200 connects the solar cell array 100 and the inverter 300 to connect the DC power generated from the solar cell array 100 in series/parallel to aggregate them, and a fuse and reverse current prevention are provided inside. A diode may be installed for A plurality of connection panels may be connected to one inverter.

The inverter 300 may convert the generated power provided in the DC form from the connection panel 200 into an AC and supply it to a load terminal (not shown). The inverter 300 is installed inside the electrical room, and each inverter 300 is connected to a plurality of connection boards 200 and cables to receive DC power.

2 is a block diagram of a photovoltaic power generation system monitoring device according to an embodiment of the present invention.

Referring to FIG. 2 , the photovoltaic power generation system monitoring device according to an embodiment of the present invention is mounted inside the current sensor unit 310 installed in the cable 301 leading into the inverter 300 , the inverter box or the electrical enclosure. It may be configured to include a communication unit 320 that performs data communication and a monitoring unit 400 that receives current data from the communication unit 320 and monitors the photovoltaic system.

First, the current sensor unit 310 may be installed for each cable 301 introduced from the solar power plant connection panel to the inverter 300 . The current sensor unit 310 may be, for example, a ring-shaped current transformer installed on each of the cables 301 introduced into the inverter 300 . The current sensor unit 310 may measure a current for each cable 301 introduced into the inverter 300 and transmit current data to the communication unit 320 . Unlike this, it is installed on each of the cables 301 introduced into the inverter 300 using a Hall element or a fuse element to measure current.

The communication unit 320 may collect and transmit current data measured by the current sensor unit 310 . The communication unit 320 may be installed inside the housing accommodating the inverter 300 and the current sensor unit 310 installed in the cable 301 connecting the connection panel 200 and the inverter 300 leading into the housing. It is possible to collect the current data measured in , and transmit it to the monitoring unit 400 .

The monitoring unit 400 classifies the current data received from the communication unit 320 according to the junction panel 200 that is introduced for each inverter 300, and compares the junction panel current data for each inverter to connect the solar cell array, It can be determined whether at least one of the half and the inverter is abnormal.

In addition, the monitoring unit 400 may be configured to further include a display device that displays data classified according to the connection panel introduced for each inverter 300 .

The monitoring unit 400 may be installed inside an electrical room accommodating a plurality of inverters, or implemented in a management room or a situation room outside the electrical room.

Consider the following configuration.

a current sensor unit 310 installed for each cable 301 introduced from the solar power plant connection panel 200 to the inverter 300; a communication unit 320 for collecting and transmitting current data measured by the current sensor unit 310; and

The current data is classified according to the connection panel 200 that is introduced for each inverter 300, and the current data of the connection panel 200 for each inverter is compared with each other to form a solar cell array 100, a connection panel 200, and an inverter. In the photovoltaic system monitoring device comprising a monitoring unit 400 for determining whether at least any one of (300) is abnormal,

The solar cell array 100 outputs a DC current and provides it to the connection panel 200, but a first solar cell in which the upper plane of the first solar cell module 100a is periodically cleaned in a position close to the solar cell array 100 The amount of power generated by the module (100a) is installed in the vicinity of the solar cell array (100),

A monitoring unit 400 that cleans the entire plane of the solar cell array 100 when there is a difference by more than a reference value compared to the amount of power generated by the second solar cell module 100b that does not clean the upper plane of the second solar cell module 100b ) is included.

a water channel 610 for forming a rain gutter (which may be a solar cell array) at the lower end of the solar cell array 100 and collecting water flowing down from the rain gutter 600 to be discharged to one side; an operation unit 620 that moves or descends when it is interfered with by rainwater flowing into the water channel 610 on one side of the water channel 610;

a lever device 624 having one side of the lever 621 connected to the operation unit 620, a weight 622 formed on the other side of the lever 621, and a central portion of the lever connected by a hinge 623;

Interfered with the lever device 624 on the upper or lower side of the lever device

a switch 630 that turns on/off the power;

When the switch 630 is turned on/off, the power of the battery 700 charged in the solar cell module is applied or blocked through the control unit 500d, and the driving motor 500 operates and

One side of the brush 520 is connected to the driving part of the driving motor 500 and the other longitudinal direction of the brush 520 is in close contact with the plane of the first solar cell module 100a.

In the embodiment of the above configuration, when it rains, rainwater flows down from the first solar cell module 100a installed at an angle and is collected into the water channel 610 at the lower end of the slope of the first solar cell module 100a, and the water channel 610 one side Falls to the operation unit 620 located at the bottom. When hit by the water pressure of the falling water, the operation unit 620 descends a certain distance.

Therefore, as shown in the figure, when the lever device 624 rotates about the hinge 623 as a central axis, the weight 622 of the lever device 624 rises to interfere with the switch 630 located above the weight, and the switch (730) is turned on. Then, the power of the battery 700 is applied to the driving motor 500 through the control unit.

With this power application, the drive motor rotates the brush 620 according to a set control signal or cleans the plane of the first solar cell module 100a while repeating forward rotation and reverse rotation.

However, if there is no rainwater, the moving part is returned to its original position because it is not damaged by rainwater. At this time, the switch 630 is turned off.

Since the solar cell array 100 is installed at an angle, the solar cell array 100 may serve as a drip tray.

One side of the lever 621 is connected to the operation unit 620, and a weight 622 is installed on the other side of the lever 621, and the center of the lever 621 is a hinge 623 to support the structure (the first solar cell module). structure), but the weight 622 is moved in the direction of the hinge 623 from the other side of the lever 621, so that the weight 622 is moved in the longitudinal direction of the lever 621 according to the amount of precipitation is characterized by

In the embodiment of the above configuration, when the amount of precipitation is less than the reference value, the weight 622 is moved in the hinge direction to lower the weight of the weight, and when the amount of precipitation is greater than the reference value, the weight of the weight of the weight is increased.

The reason for doing this is to prevent unnecessary operation by allowing the operation unit 620 to descend by being hit by the water pressure of water falling into the water channel 610 only when the amount of precipitation is greater than or equal to the reference value.

That is, if the operation is performed until the drizzle falls, the lifespan of the devices is shortened or the lifespan of the battery is shortened due to unnecessary operation.

In particular, the snow accumulated in the first solar cell module 100a in winter melts and flows down through the waterway.

When the operation unit 620 is lowered by weak water pressure, it becomes an unnecessary operation.

If the brush cannot sweep the snow away due to the operation of the driving motor due to the weak water pressure, a load is generated on the driving motor, which leads to a fire.

In consideration of this, the weight 622 is moved to the other end of the lever 621 so that the operation unit 620 does not descend with the hinge as a central axis in the case of weak water pressure.

When the weight of the weight 622 is compared with that of the operation unit 620 , the operation unit 620 is in an elevated position by making the weight heavier.

A driving motor 500 is installed on one side of the first solar cell module 100a.

and install the brush 520 on the driving part 510 of the driving motor 500,

A water tank 530 for temporarily receiving rainwater on one side of the first solar cell module 100a, and a buoyancy level sensor 540a having a buoy 540 that rises and falls by buoyancy inside the water tank 530; When the driving motor 500 is driven through the control unit according to the on/off signal of the buoyancy level sensor 540, the brush connected to the driving unit 510 moves to clean the plane of the first solar cell panel 100a. .

As shown in the present invention, a brush mounted on the first solar cell panel 100a on one side of the solar cell module 100 corresponding to the solar cell array 100 including a plurality of solar cell modules 100 as an array. It can be cleaned by mounting a brush as shown in 520 .

In an embodiment of the above configuration, when water flows into the water tank 530, the buoy 540 rises together with the water level, and the switch of the buoyancy water level sensor 540a is turned on to control the power produced by the solar module (not shown) Power is supplied to the driving motor 500 through the

Then, the driving motor 500 operates the brush 520 to clean the solar stop module.

The buoy 540 rises only when the water level rises to turn on the switch 540b, and when there is no water level, the buoy descends and the switch 540b is off.

Therefore, when the water level continues, the driving motor 500 continuously operates, so to stop it, a timer (not shown) is configured in the control unit to supply power to the driving motor 500 for a certain period of time and then cut off the power.

In an embodiment, the cleaning of the first solar cell module 100a for data measurement can be compared with the first solar cell module 100a as a comparison target and the second solar cell module 100b as the comparison target even on a rainy day.

That is, not every day, but sometimes quarterly.

The following is an explanation of the cleaning period.

Since the present invention cleans on a rainy day, there is no need to artificially fill the water tank 530 with water.

So, according to the present invention, when it rains, the small water tank 530 is filled with water, and thereby the water level rises with the buoy 540 to turn on the switch 540b.

Therefore, when the power produced by the solar cell module is applied and the driving motor 500 operates, the brush 520 connected to the driving unit 510 moves left and right or up and down to move the first solar cell

The plane of the module 100a is cleaned.

A difference occurs in power generation between the cleaned first solar cell module 100a and the uncleaned second solar cell module 100b.

That is, if the amount of power generated by the first solar cell module 100a differs by more than a reference value compared to the amount of power generated by the second solar cell module 100b without the cleaning system device, the solar cell array installed in the entire solar cell array power plant is cleaned. It is monitored and transmitted to the administrator.

The water tank 530 includes a sieve 550 for blocking the inflow of foreign substances to the upper side of the water tank 530 so that water flows into the water from the upper side;

a buoy 540 rising by the water level inside the water tank 530;

A switch 540b that is connected to the buoy 540 and operates when the buoy 540 rises to turn on/off the electric temperature, and the driving motor 500 through the control unit according to the on/off signal of the switch 540b. is a working configuration.

The driving motor 500 receives power from the solar cell module 100a.

A drain port 560 is formed at the bottom of the water tank 530, but when the amount of water (including rainwater) flowing into the upper side of the water tank 530 is less than the amount discharged through the drain hole 560, the water level in the water tank 530 rises. It is a structure in which the buoy 540 is raised by the raised water level to do so.

The reason for doing this is to keep the water tank 530 empty when water does not continuously flow into the water tank. If it is not left empty, freezing may occur and foreign substances introduced into the water tank may accumulate.

That is, the water inlet at the upper side of the water tank 530 is large, and the drain port 560 at the lower end of the water tank 530 is smaller than the water inlet.

The reason for operating the buoyancy level sensor 540a by the buoy is to prevent the driving motor from operating when the operating part such as the buoy is frozen in winter.

For example, when a humidity sensor is applied, even if the driving motor 500 and the driving unit 510 are frozen on a snowy day, the driving motor may operate when humidity is detected.

In particular, when heavy snow falls, the brush cannot sweep the snow, and when the drive motor operates, the drive motor overheats.

Then, the driving motor is heated by the power applied to the driving motor 500, which may lead to a fire, and may operate even in moisture caused by dew.

Of course, adding complex functions to the control unit can solve the problem, but it is unrealistic in terms of cost.

As shown in the figure, one side of the brush is connected to the driving unit 510 and when the driving motor rotates, the other side of the brush rotates to clean the first solar cell module. can

The buoyancy level sensor 540a is a switch water level sensor that can be purchased in the market, and is a product configured to be switched on when the buoy rises.

That is, it is one body with the switch.

The water level sensor can be easily checked by searching for 'switch water level sensor' on Google, Daum, Naver, etc., and its function can also be confirmed.

The following describes the configuration corresponding to the claims of the present invention.

One side of the brush 520 is rotatably connected to the drive shaft 520a of the brush motor 510a, and the other side of the brush 520 rolls on the rail 110a formed above the first solar cell module 100a. The rotary roller 530a is installed so as to move, the longitudinal direction of the brush 520 is installed so that the plane of the first solar cell module 100a is in close contact, and the brush motor 510a is attached to the structure 600a by a hinge 510b. with connected,

When the brush motor 510a rotates, the rotary roller 530a moves while rotating in the rotational direction of the rotary roller 530a on the rail 110a about the hinge 510b, and at the same time the brush 520 moves. It is configured to clean the surface of the first solar cell module 100a while rotating as if rotating by the rotational force of the brush motor 510a.

As such, the brush motor 510a moves in the rotational direction while the other rotary roller 530a rotates with the hinge 510b as the central axis, so that the snow accumulated in the first solar cell module 100a is removed while flying into the sky. It can effectively remove the eyes.

If it is a brush that sweeps the snow, the motor cannot be pushed out because a load is generated on the motor when there is a lot of snow. Of course, it is possible with a large-capacity motor, but it is unrealistic in terms of cost.

When the rotary roller 530a rotates on the rail 110a, it is preferable to form protrusions with each other so that the rotary roller 530a does not rotate on the rail in vain.

100: solar cell array
200: connection panel
300: inverter
301: cable
310: current sensor unit
320: communication department
400: monitoring unit
500: drive motor
510: driving unit
520: brush
530: water tank
540 : Buoy

Claims (1)

One side of the brush 520 is rotatably connected to the drive shaft 520a of the brush motor 510a, and the other side of the brush 520 rolls on the rail 110a formed above the first solar cell module 100a. The rotary roller 530a is installed so as to move, the longitudinal direction of the brush 520 is installed so that the plane of the first solar cell module 100a is in close contact, and the brush motor 510a is attached to the structure 600a by a hinge 510b. connect,

When it rains, rainwater flows down from the first solar cell module 100a installed at an angle to form a rain gutter 600 so that it is collected at the lower end of the slope of the first solar cell module 100a, and flows from the rain gutter 600 a water channel 610 through which falling rainwater is discharged;

On one side of the water channel 610, an operation unit 620 that moves or descends when it is interfered with by rainwater flowing into the water channel 610 is positioned.

In the operation unit 620, one side of a lever 621 is connected to the operation unit 620, a weight 622 is formed on the other side of the lever 621, and the central portion of the lever is a lever device connected by a hinge 623 ( 624) and;
Interference with the lever device 624 on the upper side or the lower side of the lever device 624
a switch 630 that turns on/off the power;
When the switch 630 is turned on/off, the power of the battery 700 charged in the solar cell module is applied or blocked through the control unit 500d, and the brush motor 500a operates and
One side of the brush 520 is connected to the driving part of the brush motor 500a, and the longitudinal direction of the other side of the brush 520 is in close contact with the plane of the first solar cell module 100a.

When it rains, rainwater flows down from the first solar cell module 100a installed at an angle, is collected and flows into the water channel 610 located at the lower end of the slope of the first solar cell module 100a, and the water channel 610 is located at the lower end of one side. When the operating unit 620 is hit (interfered) to lower the operating unit 620 by a certain distance,

When power is applied to the brush motor 500 through the control unit by turning on the switch 630 while the weight 622 formed on one side of the lever 621 rotates around the hinge 623 to ascend and descend.

As the brush motor 510a rotates, the rotary roller 530a moves while rotating in the rotational direction of the rotary roller 530a on the rail 110a about the hinge 510b, and at the same time the brush 520 moves. The surface of the first solar cell module 100a is cleaned while rotating as if rotating by the rotational force of the brush motor 510a.

The amount of power generated by the first solar cell module 100a, which periodically cleans the upper plane of the first solar cell module 100a, is the second solar cell in which the upper plane of the second solar cell module 100b is not cleaned. A device for informing the cleaning timing of a solar power plant, characterized in that the entire plane of the solar cell array 100 is cleaned when there is a difference of more than a reference value compared to the amount of power generated by the module 100b.

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