KR101136543B1 - Tracking Photovoltaic System - Google Patents

Abstract

The present invention relates to a solar tracking power generation device, comprising a support for supporting a solar panel, a main plate equipped with a solar panel, and between the support and the main plate to be rotated 360 degrees in the horizontal direction relative to the support The horizontal rotation drive unit for rotating the first rotational column coupled to the rotation, the vertical rotational drive for rotating the main plate vertically with respect to the first rotational column, and the sun in the daytime using the current time information provided by the electronic clock The battery panel controls the horizontal rotational drive to rotate 360 degrees a day so as to follow the position trajectory of the azimuth movement in which the sun moves in the east-west direction, but drives the continuous rotation in the same rotational direction even after sunset of the sun. Even if the sun's sunrise and sunset time change according to the change, The sun and the solar panel can achieve a vertical direction in accordance with the phase sunrise and sunset time, and the change of the altitude of the sun according to the seasonal change is provided with a control unit that controls the solar cell panel by tracking the change of the position of the sun altitude through the vertical rotating drive unit. . According to such a solar tracking power generation device, it is possible to track the sunlight using electromechanical information, thereby providing an advantage of increasing the solar collection efficiency while simplifying the structure.

Solar tracking, solar power generation, clock, 360 degree rotation, azimuth control, altitude control

Description

Solar Tracking Power Plant {Tracking Photovoltaic System}

The present invention relates to a solar tracking generator, and more particularly, to a solar tracking generator using a clock.

Recently, the construction of photovoltaic devices, which are environmentally friendly energy facilities using solar, which is a clean energy source that does not cause environmental pollution while replacing fossil fuels, is gradually increasing.

The photovoltaic device can be classified into a fixed type in which a panel equipped with a solar cell module is fixed and a tracking type that tracks the orbit of the sun.

The tracking type tracks the position of the sun using power so that the direct sunlight of the sun can enter the solar cell module receiving the sunlight vertically. The tracking type has the advantage of generating several ten percent (%) higher than the fixed type. .

On the other hand, such a tracked photovoltaic device detects the sun's intensity to detect the sun's position in real time, and applies a sensor that tracks the sun's position so that the weather is cloudy or close to sunrise / sunset time. In the case of time, it is difficult to track the sun position.

In addition, there is a method of tracking the position of the sun using GPS to alleviate the constraints on weather and sunrise / sunset time, but the solar power module applied to small-scale power generation in street lamps or wireless transmission stations is economical and practical. It is difficult to apply apart.

The present invention has been made to improve the above problems, and an object thereof is to provide a solar tracking power generation apparatus capable of tracking the sun while simplifying the structure to be suitable for small-scale power generation facilities.

Solar tracking power generation device according to the present invention to achieve the above object and the holding; A main plate on which the solar cell panel is mounted; A first rotating column coupled between the support and the main plate to rotate the main plate 360 degrees in the horizontal direction with respect to the support; A horizontal rotary driving unit rotating the first rotary pillar; An electronic clock; By using the current time (hours and minutes) information provided from the electronic clock to control the horizontal rotation drive unit so that the solar cell panel rotates to follow the position trajectory of the sun in the daytime in the same rotation direction even after the sunset time of the sun And a controller for driving the continuous rotation.

Preferably, the main plate is further rotatably coupled vertically with respect to the first rotary pillar, and further comprises a vertical rotary drive for rotating the main plate vertically with respect to the first rotary pillar; The control unit controls the vertical rotation driving unit to adjust the vertical position of the main plate by using the date (month day) information of the electronic clock so that the solar panel follows the altitude change of the sun in a set period.

In addition, the control unit rotates the first rotary column by 0.25 degrees per minute to rotate 360 degrees in 24 hours a day to control the horizontal rotary drive to rotate the same as the 24-hour clock rotates 360 degrees per day By synchronizing with solar movement in the east-west direction according to the rotation, the azimuth is controlled to move 0.25 degrees every minute like a clock so that the sun and the solar panel face each other regardless of the change of the sunrise or sunset time according to the seasonal change. In order to reduce the vertical angle of the main plate on the basis of the lower extremity by the unit vertical angle corresponding to the dividing value of the solar altitude of the lower part of the position where the strut is installed and the solar altitude of the winter solstice by 6 months, The vertical rotational drive unit is controlled in units, but the unit vertical angle again in monthly units until after winter solstice It is preferable to control the vertical rotation driving unit so that the vertical angle is increased by each.

More preferably, there is further provided a first sensor capable of detecting a reference position for one rotation per day of the first rotary pillar, wherein the controller is configured to rotate the first rotary pillar from a signal output from the first sensor. The horizontal rotary drive unit is controlled to correct the error in units of one day.

According to the solar tracking power generation device according to the present invention, it is possible to track the sunlight by using the clock information, thereby providing an advantage of increasing the solar light collecting efficiency while simplifying the structure.

1 is a perspective view showing a solar tracking power generation device according to the present invention, Figure 2 is a partial cut cross-sectional view of a portion of Figure 1, Figure 3 is a control system for controlling the rotation angle of the main plate of Figure 1 It is a circuit diagram.

1 to 3, the solar tracking generator 100 includes a support 110, a main plate 120, a vertical rotating sector gear 125, a first rotating pillar 140, and first and second parts. The motor 151, 161 and the controller 190 are provided.

The strut 110 is installed to extend a certain height from the ground.

The strut 110 has a main body 112 formed of a hollow cylinder extending upward from the base plate 111 fixed to the ground, and has an outer diameter upward from the upper end of the main body 112 with a smaller outer diameter than the main body 112. It has a structure having an extended sub main body 114.

In the illustrated example, the support 110 is applied to the street lamp for the street lamp 117 is installed, unlike the illustrated example can be self-driving or supplemented with power generated from the solar panel 130, such as a wireless repeater pillar It can be applied to the application of small scale power plant.

The first rotary pillar 140 is rotatably coupled to the sub main body 114 through a bearing mounted on an outer circumferential surface of the sub main body 114 of the support 110, and is installed to extend upwardly from the support 110. .

The first driven gear 143, which is an element of the horizontal rotation driving unit to be described later, is integrally formed on the lower side of the first rotary pillar 140.

The first rotary pillar 140 may be rotated 360 degrees in a horizontal direction with respect to the support 120, that is, in a direction parallel to the ground.

The main plate 120 is formed in a plate shape and the solar cell panel 130 is mounted on the upper surface.

At the center of the bottom surface of the main plate 120 is a vertical rotating sector gear 125 formed to protrude downward.

The center portion of the vertical rotating sector gear 125 is rotatably coupled to the upper portion of the first rotating column 140 by the hinge 126, and the edge opposite the main plate 120 is centered around the hinge 126. The gear is formed accordingly.

The horizontal rotary drive unit is configured to rotate the first rotary pillar 140.

The horizontal rotation driving unit rotates the first driven gear 143 integrally formed on the first rotating pillar 140 and the first driving gear 152 installed on the support 110 and engaged with the first driven gear 143. The first motor 151 to be provided.

Stepping motor is preferably applied to the first motor 151 and the second motor 161 to be described later.

The first motor 151 is installed to be supported by the bracket 153 coupled to extend outward from the main body 112.

The vertical rotation driving part is capable of rotating the main plate 120 vertically with respect to the first rotary pillar 140.

The vertical rotational drive unit includes a second driving gear 146 installed on the first rotational pillar 140 to engage with the vertical rotational sector gear 125 formed on the bottom surface of the main plate 120, and a second driving gear to rotate the second driving gear. Two motors (161) are provided.

On the other hand, the power transmission structure from the first motor 151 to the first driven gear 143 or the power transmission structure from the second motor 161 to the vertical rotating sector gear 125 is different from the illustrated example to the worm and worm gear Of course, the method of application may be applied.

The first sensor 185 detects a reference position for one rotation per day when the first rotary pillar 140 rotates 360 degrees in the horizontal direction with respect to the support 110.

In the illustrated example, the protrusion 186 installed to protrude from the bottom of the first rotary pillar 140 may allow the first rotary pillar 140 to provide rotation position information by contact every time the first motor 151 is contacted. The contact sensor for detecting the contact of the projection 186 on the upper surface of the mounting bracket 153 was applied as the first sensor 185.

Unlike the illustrated example, the first sensor 185 may be applied with various known sensors, such as a proximity sensor capable of detecting the rotational position of the first rotary pillar 140 by a non-contact type.

The second motor 161 is installed to be supported by the first rotational drive 140.

The electronic clock 181 provides current time (hour minute) and date (year month date) information.

The setting unit 183 is the initial stage of the solar cell module 130 so that the solar cell module 130 can receive the current sunlight vertically according to the location of the installation place when the solar tracking generator 100 is installed For use in setting the position, a key for adjusting the rotational driving of the first and second motors 151 and 161 is provided.

In addition, the setting unit 183 is preferably configured to set the monthly altitude adjustment angle for the solar cell module 130.

The controller 190 uses the current time information provided from the electronic clock 181 as much as an angle set at a unit time interval set for the first rotary pillar 140 so that the first rotary pillar 140 is rotated 360 degrees per day. Rotate

That is, the controller 190 controls the first motor 151 so that the solar cell panel 130 is rotated to follow the position trajectory of the sun in the daytime, but continuous rotation in the same rotational direction is performed even after the sunset time of the sun. To make it work.

In this case, the controller 190 controls the first motor 151 of the horizontal rotary drive unit so that the first rotary pillar 140 is rotated by 0.25 degrees per minute.

On the other hand, the controller 190 controls the horizontal rotation drive unit, that is, the first motor 151 to correct the rotation error of the first rotary pillar 140 by a unit of day by using the signal output from the first sensor 185. do. That is, when the reference position detection signal due to the contact of the protrusion 186 is received from the first sensor 185 in the process of rotating the first rotating column 140 once a day, the controller 190 correctly passes 24 hours. If it is determined that there is no error occurrence, if it is shorter than 24 hours, after delaying by the corresponding time to control the first rotating pillar 140 is rotated, if it is longer than 24 hours to the first position corresponding to the corresponding time The first motor 151 is rotated at the rotation angle described above every minute after the first motor 151 is driven to be moved by a corresponding angle so that the rotational position of the rotary column 140 is adjusted to be matched and corrected. To control.

In addition, the controller 190 adjusts the vertical position of the main plate 120 using the date information of the electronic clock 181 so that the solar cell panel 130 follows the altitude change of the sun on a set period of time. The motor 161 is controlled.

Preferably, the control unit 190 is based on the lower plate by the unit vertical angle corresponding to the value divided by six months with respect to the difference between the solar altitude of the lower part of the position where the support 110 is installed and the solar altitude of the winter solstice. The vertical angle of 120 is controlled to control the vertical rotational drive on a monthly basis, but after the winter solstice to control the vertical rotational drive to increase the vertical angle by the unit vertical angle again in the monthly unit.

As an example, the control unit 190 is an angle obtained by dividing the difference of 47 degrees, which is the difference between the solar altitudes, by 6 months when the solar elevation at the lower part of the place where the support 110 is installed is 75.5 degrees and the solar elevation at the winter solstice is 28.5 degrees. The second motor 161 is controlled to be adjusted once a month by about 7.83. In other words, when the solar cell panel 130 maintains an altitude of 75.5 degrees when the solar cell panel 130 is not in a month, the controller 190 drives the first motor to control the altitude as low as 7.83 degrees. This process is adjusted to lower the altitude of the solar panel on a monthly basis for six months, and after six months have elapsed, the second motor 161 is also driven one month later to lower the altitude by 7.83 degrees. Control the fork.

The solar tracking generator described above has little computational burden for solar tracking and rotates by unit angle in the horizontal direction by using the clock information, and adjusts it in monthly units in the vertical direction, thereby simplifying the structure and generating power efficiency. Provides an advantage to increase.

1 is a perspective view showing a solar tracking power generation device according to the present invention,

2 is a partial cut cross-sectional view of a portion of FIG. 1;

3 is a control circuit diagram for controlling the rotation angle of the main plate of FIG.

Claims (4)

delete delete In the solar tracking power generation device, Holding; A main plate on which the solar cell panel is mounted; A first rotating column coupled between the support and the main plate to rotate the main plate 360 degrees in the horizontal direction with respect to the support; A horizontal rotary driving unit rotating the first rotary pillar; An electronic clock; By using the current time information provided by the electronic clock to control the horizontal rotation drive unit so that the solar panel rotates to follow the position trajectory in the east-west direction during the day, even after the sunset time of the sun continuous in the same rotational direction And a controller for driving the rotation to be made. The main plate is rotatably coupled vertically with respect to the first rotating pillar, And a vertical rotation driving part configured to rotate the main plate vertically with respect to the first rotation column. The control unit controls the vertical rotation driving unit to adjust the vertical position of the main plate by using the date information of the electronic clock so that the solar cell panel follows the altitude change of the sun in a set period unit, The controller controls the horizontal rotary drive unit to rotate the first rotary column by 0.25 degrees per minute, and corresponds to a value divided by six months for the difference between the solar elevation of the lower part of the position where the pillar is installed and the solar elevation of the same. The vertical angle of the main plate is controlled by the unit vertical angle by the unit vertical angle to be lowered by the vertical rotation control unit on a monthly basis until the vertical angle of the vertical angle is increased by the unit vertical angle again in the monthly unit until after winter Photovoltaic tracking power generation device characterized in that for controlling the rotary drive. The method of claim 3, further comprising a first sensor that can detect the reference position for one rotation of the first rotary column per day, The control unit is a solar tracking power generation device, characterized in that for controlling the horizontal rotation driving unit to correct the rotational error of the first rotating column from the signal output from the first sensor in units of one day.

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