JP2019092368A - Module support device and solar cell device - Google Patents

Abstract

To provide a module support device and a solar cell device which enable a single sheet of a solar cell module with a plurality of solar cell panels arranged thereon to follow the sun and can reduce a cost.SOLUTION: A module support device 10 comprises: a base 18 which is fixed to the ground; a rotation body 20 which horizontally rotates with respect to the base 18; horizontal rotation drive means 22 which rotates the rotation body 20; a support body 24 which supports a gravity center of a solar cell module 16; vertical rotation derive means 26 which rotates the solar cell module 16 in a vertical direction; and a control unit 28 which controls drive of the horizontal rotation drive means 22 and the vertical rotation drive means 26.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a module support device that supports a solar cell module in which a plurality of solar cell panels that generate electric power by being irradiated with sunlight are arranged in a flat plate shape, and a solar cell device provided with the module support device.

  BACKGROUND Conventionally, a solar cell device that generates power using a plurality of solar cell panels has been known. A commercially available solar panel generates about 200 w of electricity per sheet (size is about 1.4 to 2.0 m × 0.8 to 1.1 m). In order to generate electricity by solar panels as a business, at least 10 kw of electricity generation is required, so at least about 50 solar panels are required. In order to increase the power generation efficiency, it is preferable to cause the solar cell panel to track the sunlight by the driving means of the supporting device that supports the solar cell panel. However, the weight per solar cell panel is about 10 to 20 kg, and in the case of a solar cell module in which about 50 solar cell panels are arranged in a flat plate, it is about 500 kg to 1 ton in one module. For this reason, the load applied to the support device is large, and it is difficult to cause the solar cell module in which 50 solar cell panels are arranged in a flat plate shape to track sunlight by one driving means.

  Then, it is performed to track the sun for every solar cell panel of 1 sheet or several sheets (for example, refer patent document 1). However, in order to cause the sun to track one or several solar cell panels, a large number of tracking drive means are required, and the cost of the solar cell device is increased.

JP 2001-291890 A

  The present invention can make the sun track a large-sized solar cell module in which a large number of solar cell panels are arranged in a flat plate shape, eliminate the need for a large number of tracking drive means, and reduce the cost. It aims at providing a solar cell device.

The module supporting apparatus of the present invention supports a solar cell module in which a plurality of solar cell panels are arranged in a flat plate shape, and the solar cell module is horizontally and vertically oriented so that the solar cell module tracks the sun. Module support device to rotate,
A base fixed to the ground,
A rotating body that rotates horizontally with respect to the base;
Horizontal rotation driving means for rotating the rotating body in the horizontal direction;
A support fixed on the rotating body and supporting the solar cell module at the center of gravity of the solar cell module;
Vertical rotation driving means connected to the rotating body and the solar cell module and vertically moving the connection portion with the solar cell module, thereby rotating the solar cell module in the vertical direction;
A control device that transmits a command signal to the horizontal rotation drive means and the vertical rotation drive means, and controls the horizontal and vertical rotation of the solar cell module;
The support, and the connecting portion between the vertical rotation driving means and the rotating body are separated in mutually opposite directions in the horizontal direction with respect to the rotation center of the rotating body.
In the solar cell module indication device of the present invention, in the module support device,
The control device stores a movement route storage unit storing the movement route of the sun on a day-by-year basis;
A timer that updates and transmits time data at any time,
The horizontal rotation drive means and the vertical rotation drive such that the solar cell module is substantially perpendicular to the irradiation direction of the light from the sun based on the data of the movement path storage unit and the time data transmitted by the timer. And a command unit that transmits a command signal to the unit and causes the solar cell module to track the sun.
In the solar cell module indication device of the present invention, in the module support device,
The control device includes a time correction unit that receives time data from a radio wave and corrects time data transmitted by the timer.
In the solar cell module indication device of the present invention, in the module support device,
A wind speed sensor for detecting a wind speed in the vicinity of the supporting solar cell module;
The command unit is configured to transmit a command signal to the vertical rotation driving means such that the solar cell module has a horizontal retraction angle when the wind speed detected by the wind speed sensor is equal to or higher than a predetermined wind speed threshold. It is characterized by
In the solar cell module indication device of the present invention, in the module support device,
A temperature sensor for detecting the temperature of the solar cell module;
When the temperature of the solar cell module is the retraction angle, if the temperature detected by the temperature sensor is less than or equal to a certain temperature threshold, the command unit may cause the solar cell module to incline at a certain low temperature angle. It is characterized in that it is configured to transmit a command signal to the vertical rotation drive means.
In the solar cell module indication device of the present invention, in the module support device,
The command unit is configured to set the solar cell module to a predetermined retraction angle when the wind speed detected by the wind speed sensor is equal to or higher than a predetermined wind speed threshold when the solar cell module is inclined to the low temperature angle It is characterized in that it is configured to transmit a command signal to the vertical rotation drive means.
In the solar cell module indication device of the present invention, in the module support device,
The command unit is based on data of the movement path storage unit and time data transmitted by the timer when the wind speed sensor detects a wind speed threshold value less than a predetermined wind speed threshold for a predetermined time when the solar battery module is at the retraction angle. Sending a command signal to the horizontal rotation driving means and the vertical rotation driving means such that the solar cell module tracks the sun so that the solar cell module is substantially perpendicular to the irradiation direction of light from the sun It is characterized in that it is configured as follows.
A solar cell device of the present invention includes the module support device and a solar cell module supported by the module support device.

  According to the module supporting device and the solar cell device of the present invention, the supporting body, and the connection portion between the vertical rotation driving means and the rotating body are mutually separated in opposite directions in the horizontal direction with respect to the rotation center of the rotating body . For this reason, it is possible to balance the two moments acting on the rotating body from the support and the vertical rotation driving means around the point on the rotation center in the rotating body substantially the same. Thereby, the load from above on the rotating body is not biased and becomes uniform, and the rotating body on which the solar cell module is supported can be smoothly rotated around the rotation center. Since the rotating body can be smoothly rotated around the rotation center, the solar cell module can be enlarged. It is not necessary to track the sun for each solar panel or several solar panels, and a large number of tracking drive means are not required, and the cost of the solar cell apparatus can be reduced.

  According to the module supporting device and the solar cell apparatus of the present invention, the control device includes the time correction unit that receives time data from radio waves and corrects the time data transmitted by the timer, an error of time data transmitted by the timer is accumulated. Can be prevented from becoming large. For this reason, the solar cell module can accurately track the sun, and the power generation efficiency can be enhanced. A radio wave refers to a GPS radio wave or a radio wave for a radio controlled watch.

  A wind speed sensor for detecting the wind speed in the vicinity of the solar cell module is provided, and when the wind speed detected by the wind speed sensor is equal to or higher than a predetermined wind speed threshold, the command unit of the control device causes the solar cell module to have a fixed retraction angle. According to the module supporting device and the solar cell device of the present invention configured to transmit the command signal to the vertical rotation driving means, the solar cell module is retracted from the strong wind from the side, and the solar cell module is distorted by the wind pressure. It can be prevented from being damaged or lifted up. The retraction angle refers to an angle such as 0 °, 0.01 ° to 3.0 °, etc. with which the solar cell module can be retracted from the cross wind. The retraction angle is preferably 0 ° with respect to the horizontal direction. Since the solar cell module can be retracted from strong wind, the solar cell module can be made larger.

  The solar cell module includes a temperature sensor that detects the temperature of the solar cell module, and when the temperature detected by the temperature sensor is less than or equal to a certain temperature threshold when the solar cell module is at the retraction angle, the command unit of the control device According to the module supporting device and the solar cell device of the present invention configured to transmit the command signal to the vertical rotation driving means so as to incline at a constant low temperature angle, when the solar cell module is at the horizontal retraction angle If the temperature detected by the temperature sensor is below a certain temperature threshold (for example, a certain temperature of -1 ° C. to -10 °), it is considered that snowfall is occurring, and the solar cell module has a certain low temperature angle (for example, horizontal) The command signal is transmitted to the vertical rotation drive means so as to be inclined at 5 °, 10 °, 20 °, 30 ° or 45 ° with respect to the direction. For this reason, if it is below the temperature threshold, it is considered that snow is falling, and the solar cell module is inclined to cause snow falling to the solar cell module to fall downward, to be deposited on a horizontal solar cell module, and to be covered by the solar cell module Can be prevented from being loaded.

It is a front view showing a module support device and a solar cell device according to the present invention. It is a side view which shows the module support apparatus of FIG. 1, and a solar cell apparatus. It is a front view which shows the state which the module support apparatus of FIG. 1 rotates a solar cell module up and down. It is a figure which shows the structure of the module support apparatus of FIG. 1, and the solar cell apparatus of FIG. It is a front view which shows the other embodiment of the module support apparatus which concerns on this invention, and a solar cell apparatus. The same figure (a) is a top view which shows other embodiment of the solar cell module supported by the module support apparatus which concerns on this invention, and the figure (b)-(d) is a module support apparatus based on this invention It is a front view which shows other embodiment of the solar cell module supported by this.

  Next, an embodiment of the present invention will be described in detail based on the drawings. In FIGS. 1-4, the code | symbol 10 shows the module support apparatus of this invention, and the code | symbol 12 shows the solar cell apparatus of this invention. In FIG. 4, solid lines connecting the devices, the devices, or the control units indicate that they are communicably connected. Control of each device, each device, or each control unit is performed by a computer (not shown).

(Constitution)
The module support device 10 is configured to support a solar cell module 16 in which a plurality of solar cell panels 14 are arranged in a flat plate shape, as shown in FIG. As shown in FIGS. 1 and 2, the solar cell module 16 includes a truss structure 15, a plurality of solar cell panels 14 arranged in a flat plate shape on the truss structure 15, and a truss structure that holds the truss structure 15. It comprises the holding member 17. The truss structure 15 includes a plurality of base rods 70 combined to arrange and fix a plurality of solar cell panels 14, a plurality of upper cross members 72 fixed to the base rods 70, and an upper side A plurality of oblique members 74 connected to the member 72 and a plurality of lower cross members 76 connected to the oblique member 74 and fixed to the truss holding member 17 are provided. The solar cell apparatus 12 is comprised from the module support apparatus 10 and the solar cell module 16 supported by the module support apparatus 10, as shown to FIG. 1 and FIG.

  As shown in FIG. 1, the module support device 10 includes a base 18 fixed on the ground, a rotating body 20 rotating in a horizontal direction with respect to the base 18, and a horizontal rotation drive means 22 rotating the rotating body 20. A support 24 fixed on the rotating body 20 and supporting the center of gravity of the solar cell module 16; vertical rotation driving means 26 for rotating the solar cell module 16 in the vertical direction; horizontal rotation driving means 22; and vertical rotation driving means And 26. A control device 28 (shown in FIG. 4) for controlling the drive of the H.26.

  The base 18 is, as shown in FIG. 1, a leg 31 fixed on a foundation 30 and a dish-like rotating member supporting member 32 which receives the rotating body 20 and rotatably supports it around the rotation center C. Equipped with The rotary body 20 is held by the rotary plate 21, the internal gear 34 fixed to the rotary plate 21, and the rotary plate 21, and the vertical rotation drive means 26 at a position separated from the rotation center C by the distance L2 in the horizontal direction. And a rotary shaft 27 rotatably supporting the The internal gear 34 has a hollow portion (not shown), includes a plurality of internal teeth (not shown) along the inner periphery of the hollow portion, and is configured to rotate around the rotation center C. The rotating body support member 32 includes a bearing (not shown) that supports the internal gear 34 in the horizontal direction (XY direction) on the inner periphery.

  As shown in FIG. 1, the horizontal rotation drive means 22 comprises a motor 36 fixed to the rotary member support member 32 and a gear 38 meshed with the internal teeth of the internal gear 34 and rotated horizontally by the motor 36. Prepare. That is, the horizontal rotation drive means 22 rotates the rotating body 20 fixed to the internal gear 34 in the horizontal direction by rotating the gear 38 engaged with the internal teeth of the internal gear 34 in the horizontal direction. It is configured. The horizontal rotation drive means 22 also includes an encoder (not shown) that detects the horizontal rotation angle of the rotating body 20 and transmits (feedback) to the control device 28. The horizontal rotation drive means 22 is configured to perform feedback control so that the rotating body 20 rotates in the horizontal direction at an accurate angle based on a command signal from the control device 28.

  The support 24 is, as shown in FIG. 1, a leg 42 fixed to the rotating body 20 at a position separated by a distance L1 in the horizontal direction from the rotation center C and a position separated by a distance L1 from the rotation center C in the horizontal direction. It is comprised from the rotating shaft 25 which supports the solar cell module 16 rotatably.

  As shown in FIG. 1, the vertical rotation drive means 26 includes a hydraulic cylinder 48 rotatably supported by the rotation shaft 27 at a position separated by a distance L2 in the horizontal direction from the rotation center C. The hydraulic cylinder 48 has a cylinder portion 44 and a piston 46. The cylinder portion 44 also has a rotating shaft 52 which connects the piston 46 to the truss holding member 17 of the solar cell module 16, and vertically moves the rotating shaft 52 by expanding and contracting the piston 46. As shown in FIG. 3, the solar cell module 16 is configured to rotate up and down. The vertical rotation drive means 26 includes an angle sensor (not shown) that detects the vertical rotation angle of the solar cell module 16 and transmits (feedback) to the control device 28. The vertical rotation drive means 26 is configured to perform feedback control so that the solar cell module 16 rotates in the vertical direction at an accurate angle based on a command signal from the control device 28.

  As shown in FIG. 1, the support 24 and the rotating shaft 27 which is a connecting portion between the cylinder portion 44 and the rotating body 20 are mutually separated in opposite directions in the horizontal direction with respect to the rotation center C of the rotating body 20. Do. Further, the distance L1 from the rotation center C of the support 24 is smaller than the distance L2 from the rotation center C of the support 24 of the rotation shaft 27. The support 24 supports the center of gravity of the solar cell module 16, and a load N1 = M due to the weight M of the solar cell module 16 is applied. Under the influence of a wind or the like striking the solar cell module 16 from above, a load N2 by a part m of the weight of the solar cell module 16 is applied to the rotating shaft 27. It is m <M and N1 = M> N2 = m. Therefore, the support 24 and the rotation shaft 27 are balanced so that the two moments M1 (N1 * L1) and M2 (N2 * L2) acting on the rotating body 20 around the point on the rotation center C become substantially the same. , L1 <L2. The effect of balancing the two moments M1 and M2 will be described later.

  As shown in FIG. 4, the control device 28 stores a moving route storage unit 54 that stores the moving route of the sun on a day-by-year basis, a timer 56 that updates time data as needed, and transmits the moving route storage unit 54. And a command signal to the horizontal rotation drive means 22 and the vertical rotation drive means 26 so that the solar cell module 16 is perpendicular to the irradiation direction of the light from the sun based on the time data stored in the timer 56 and the timer 56 And an instruction unit 58.

  The data stored in the movement path storage unit 54 is data indicating the movement path of the sun for each date in the place where the solar cell device 12 is installed, based on, for example, a scientific chronology issued by National Astronomical Observatory of Japan. The data indicating the movement path of the sun is, for example, the azimuth and the vertical angle of the sun viewed from the place where the solar cell device 12 is installed. The command unit 58 transmits a command signal to the horizontal rotation drive means 22 and the vertical rotation drive means 26 every predetermined time (for example, every 4 minutes), and the solar cell module 16 is perpendicular to the irradiation direction of the light from the sun The solar cell module 16 is configured to rotate horizontally and vertically. Therefore, the command unit 58 sets the rotation angle of the horizontal rotation drive unit 22 and the rotation angle of the vertical rotation drive unit 26 based on the position data of the sun stored in the movement path storage unit 54 in the time data transmitted by the timer 56. An arithmetic unit (not shown) for calculating is provided. When the time data transmitted by the timer 56 is constant night time (for example, 17 o'clock to 6 o'clock), the command unit 58 sets the solar cell module 16 at a constant horizontal rotation angle and a fixed vertical rotation angle. It is configured to stop. The night time is recorded in a night time recording unit (not shown) of the command unit 58. For example, it is comprised so that it may stop in the state (for example, the state shown in FIG. 1) of a fixed origin. The horizontal rotation drive means 22 and the vertical rotation drive means 26 are configured not to be burdened at night time when no power is generated. The night time can be changed.

  As shown in FIG. 4, the control device 28 includes a time correction unit 62 that receives time data from the GPS 60 and corrects time data transmitted by the timer 56 at regular time intervals. The time correction unit 62 is configured to prevent the error of the time data transmitted by the timer 56 from being accumulated and becoming large, and the solar cell module 16 to accurately track the sun.

  The module support apparatus 10 is provided with the wind speed sensor 64 which detects the wind speed of the vicinity of the solar cell module 16, as shown in FIG. The command unit 58 of the control device 28 includes a wind speed threshold recording unit (not shown), and when the wind speed detected by the wind speed sensor 64 is equal to or higher than a constant wind speed threshold (for example, 15 m / s), the solar cell module 16 is horizontal It is configured to transmit a command signal to the vertical rotation drive means 26 as follows. The wind speed threshold can be changed.

  The module support apparatus 10 is provided with the temperature sensor 66 which detects the temperature of the solar cell module 16, as shown in FIG. The command unit 58 of the control device 28 includes a temperature threshold recording unit (not shown), and when the wind speed detected by the wind speed sensor 64 is equal to or higher than a certain wind speed threshold and the solar cell module 16 has a horizontal retraction angle, temperature When the temperature detected by the sensor 66 is below a certain temperature threshold (for example, -4.degree. C.), the solar cell module 16 is at a certain low temperature angle (for example, 5.degree., 10.degree., 20.degree. It is configured to transmit a command signal to the vertical rotation drive means 26 so as to incline at an angle of 45 ° or the like. If the temperature is lower than the threshold temperature, the command unit 58 considers snowfall, inclines the solar cell module 16 and causes snow falling on the solar cell module 16 to fall downward, and snow on the horizontal solar cell module 16, The solar cell module 16 is configured to be prevented from being loaded with snow. The temperature threshold can be changed.

(Action)
(Initial setting)
In the module support device 10, night time (for example, 17 o'clock to 6 o'clock) in which the horizontal rotation drive means 22 and the vertical rotation drive means 26 are not driven is recorded in the command unit 58 of the control device 28. Further, in the command unit 58 of the control device 28, a wind speed threshold (for example, 15 m / s) for retracting the solar cell module 16 is recorded in the wind speed threshold recording unit, and a temperature threshold (for example, for detecting snowfall) -4 ° C) is recorded. The module support device 10 and the solar cell device 12 are stopped at night time in a state of a fixed origin (for example, the state shown in FIG. 1).

(Tracking of the sun)
The module support device 10 and the solar cell device 12 track the sun in the solar cell module 16 so that it is perpendicular to the irradiation direction of the light from the sun during the daytime (for example, 6 o'clock to 17 o'clock) Let For tracking of the sun, the calculation unit of the command unit 58 of the control device 28 calculates the rotation angle of the horizontal rotation drive unit 22 and the rotation angle of the vertical rotation drive unit 26 every four minutes based on the data of the movement path storage unit 54. The calculation is performed by the command unit 58 transmitting a command signal to the rotation angle of the horizontal rotation drive means 22 and the up and down rotation drive means 26.

(Shipping of solar cell module 16)
When the wind speed sensor 64 detects a wind speed equal to or higher than the wind speed threshold while the solar cell module 16 is tracking the sun, the command unit 58 of the control device 28 causes the solar cell module 16 to have a horizontal retraction angle. A command signal is sent to the vertical rotation drive means 26. The solar cell module 16 is retracted from the strong wind from the side, and the wind pressure prevents the solar cell module 16 from being distorted or damaged.

  When the temperature detected by the temperature sensor 66 is equal to or less than the temperature threshold when the solar cell module 16 is at the retraction angle, the command unit 58 inclines the solar cell module 16 to a low temperature angle (for example, 30 ° with respect to the horizontal direction) The command signal is transmitted to the vertical rotation drive means 26 so that If the temperature detected by the temperature sensor 66 is below the temperature threshold, it is considered that snow is falling, and the solar cell module 16 is inclined to prevent snow from accumulating on the solar cell module 16. To prevent it from being distorted or damaged.

  However, when the wind speed sensor 64 detects the wind speed higher than the wind speed threshold again while the solar cell module 16 is inclined at the low temperature angle, the command unit 58 of the control device 28 retracts the solar cell module 16 again A command signal is sent to the vertical rotation drive means 26 so as to be at an angle. That is, rather than inclining the solar cell module 16 to the low temperature angle corresponding to the temperature sensor 66, priority is given to setting the solar cell module 16 to the retraction angle corresponding to the wind speed sensor 64. This is because there are more cases where the solar cell module 16 is distorted or damaged due to the strong wind than when the solar cell module 16 is distorted or damaged due to snowfall.

  In addition, when the wind speed sensor 64 detects less than a fixed wind speed threshold for a fixed time when the solar cell module 16 is at the retraction angle, the solar cell module 16 is detected based on the data of the moving path storage unit 54 and the time data transmitted by the timer 56. The command signal is sent to the horizontal rotation drive means 22 and the vertical rotation drive means 26 so that the direction perpendicular to the irradiation direction of the light from the sun. That is, the solar cell module 16 resumes tracking of the sun.

(effect)
According to the module support device 10 and the solar cell device 12 of the present invention, as shown in FIG. 1, the support 24 and the rotating shaft 27 which is a connecting portion of the cylinder portion 44 and the rotating body 20 With respect to the rotation center C, they are mutually separated in opposite directions in the horizontal direction. Then, as described in the above configuration, moments M1 (N1 * L1) and M2 (N2 * L2) acting on the rotating body 20 around a point on the rotation center C in the rotating body 20 are substantially the same. Be balanced. For this reason, the load from above on the rotating body 20 is not biased and becomes uniform, and the rotating body 20 supported by the solar cell module 16 via the support 24 and the vertical rotation driving means 26 is placed around the rotation center C. It can be rotated smoothly. Since the rotating body 20 can be smoothly rotated around the rotation center C, the size of the solar cell module 16 can be increased. For example, as in the solar cell module 16 shown in FIG. 2, the rotating body 20 having the 168 solar cell panels 14 and supporting the solar cell module 16 having a size of about 14300 × 23400 mm can be smoothly rotated about the rotation center C. It becomes possible to rotate, and it becomes possible to achieve enlargement of the solar cell module 16.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment. For example, the solar cell apparatus 12 shown in FIG. 5 may be used. The solar cell apparatus 12 shown in FIG. 5 arrange | positions the reflective sheet 78 on the upper surface of the several lower cross member 76 of the truss structure body 15. As shown in FIG. The reflective sheet 78 is made of a resin film such as white or cream which is easily reflected. In addition, as the solar cell panel 14, one that generates electricity also by the incidence of light on the back surface is particularly used. The configuration of the solar cell device 12 shown in FIG. 5 is shown in FIG. 1 and FIG. 2 except that the solar cell panel 14 is provided with a reflective sheet 78, and the solar cell panel 14 is also used to generate electric power The configuration is the same as that of the solar cell device 12. The solar cell panel 14 constituting the solar cell module 16 shown in FIGS. 1 and 2 may be configured to generate power also by the incidence of light on the back surface.

  According to the solar cell device 12 shown in FIG. 5, the light due to diffuse reflection of sunlight, the light passing through the gap between the plurality of solar cell panels 14, or the gap between the plurality of solar cell elements constituting the solar cell panel 14 The light passing through the reflecting sheet 78 is reflected by the reflecting sheet 78 and reflected on the back surface of the solar cell panel 14. For this reason, it is possible to increase the power generation amount by the incidence of light to the back surface of the solar cell panel 14 and to improve the power generation efficiency. In this case, if the horizontal dimension of the truss structure 15 is made larger and the larger reflective sheet 78 can be disposed, the power generation efficiency can be further enhanced.

  Moreover, as shown to Fig.6 (a), you may form the clearance gap 80 by mutually shifting each solar cell panel 14 in a sequence direction. Further, as shown in FIG. 6 (b), the gaps 82 may be formed by shifting the solar cell panels 14 in the vertical direction. Further, as shown in FIGS. 6C and 6D, the gaps 84 and 86 may be formed by arranging the solar cell panels 14 in an inclined manner. When the wind passes through the gaps 80, 82, 84, 86, the wind pressure of the wind striking the solar cell module 16 can be reduced, and the solar cell module 16 can be made larger.

  Although the embodiments of the present invention have been described above based on the drawings, the present invention is not limited to the illustrated embodiments. For example, in the module support device and the solar cell device of the present invention, the wind speed sensor detects a wind speed sensor that detects a wind speed in the vicinity of the solar cell module and a wind direction sensor that detects a wind direction of the wind in the vicinity of the solar cell module. When the wind speed is equal to or higher than a fixed wind speed threshold, the command portion of the control device is a horizontal rotation drive means such that the retraction angle of the solar cell module is an inclination angle slightly lowered upstream of the wind direction detected by the wind direction sensor. The controller may be configured to transmit a command signal to the vertical rotation drive means. The retraction angle in this case refers to an angle at which the solar cell module can be retracted from the crosswind, such as 0.01 ° to 3.0 ° with respect to the horizontal direction, and is inclined. The cross wind always strikes the surface of the solar cell module, and it can cope with the structure of the module supporting device that is strong against the load from above by the solar cell module but weak against the load that pushes up the solar cell module from below. The wind direction sensor is provided with a wing such as a vertical tail at the rear of a rod-like member supported so as to rotate in the horizontal direction, the tip of which is directed upstream of the wind, or the one utilizing ultrasonic waves. It is preferable that the wind direction sensor can output an average value of the wind direction for a predetermined time. Also, the control means may calculate the average value of the wind direction for a predetermined time.

  Further, the module support device of the present invention may be configured to be able to rotate the solar cell module 16 in the horizontal direction or in the vertical direction manually from the remote control terminal. In addition, a camera capable of monitoring the solar cell module may be provided, and when the snow accumulation amount of the solar cell module is large, the solar cell module may be manually rotated vertically to shake off the snow. The number of solar cell panels 14 constituting the solar cell module 16 and the size of the solar cell module 16 are not particularly limited.

10: module support device 12: solar cell device 14: solar cell panel 15: truss structure 16: solar cell module 17: truss holding member 18: base 20: rotating body 22: horizontal rotation driving means 24: support 26: Vertical rotation drive means 28: control device 48: hydraulic cylinder 54: movement path storage unit 56: timer 58: command unit 60: GPS
62: time correction unit 64: wind speed sensor 66: temperature sensor

Claims (7)

A module supporting device for supporting a solar cell module in which a plurality of solar cell panels are arranged in a flat plate shape, and rotating the solar cell module horizontally and vertically so that the solar cell module tracks the sun.
A base fixed to the ground,
A rotating body that rotates horizontally with respect to the base;
Horizontal rotation driving means for rotating the rotating body in the horizontal direction;
A support fixed on the rotating body and supporting the solar cell module at the center of gravity of the solar cell module;
Vertical rotation driving means connected to the rotating body and the solar cell module and vertically moving the connection portion with the solar cell module, thereby rotating the solar cell module in the vertical direction;
A control device that transmits a command signal to the horizontal rotation driving means and the vertical rotation driving means to control the horizontal and vertical rotation of the solar cell module;
A wind speed sensor for detecting a wind speed in the vicinity of the solar cell module;
The controller is
A movement path storage unit that stores the movement path of the sun on a day by day,
A timer that updates and transmits time data at any time,
The horizontal rotation drive means and the vertical rotation drive such that the solar cell module is substantially perpendicular to the irradiation direction of the light from the sun based on the data of the movement path storage unit and the time data transmitted by the timer. And a command unit for transmitting a command signal to the means and causing the solar cell module to track the sun,
The command unit is configured to transmit a command signal to the vertical rotation driving means such that the solar cell module has a constant retraction angle when the wind speed detected by the wind speed sensor is equal to or higher than a predetermined wind speed threshold. Module support device. A temperature sensor for detecting the temperature of the solar cell module;
When the temperature of the solar cell module is the retraction angle, if the temperature detected by the temperature sensor is less than or equal to a certain temperature threshold, the command unit may cause the solar cell module to incline at a certain low temperature angle. The module support apparatus according to claim 1, wherein the module support device is configured to transmit a command signal to the vertical rotation drive means.   The command unit is configured to set the solar cell module to a horizontal retraction angle when the wind speed detected by the wind speed sensor is equal to or higher than a predetermined wind speed threshold when the solar cell module is inclined to the low temperature angle 3. The module support apparatus according to claim 2, wherein the module support apparatus is configured to transmit a command signal to the vertical rotation drive means.   The command unit is based on data of the movement path storage unit and time data transmitted by the timer when the wind speed sensor detects a wind speed threshold value less than a predetermined wind speed threshold for a predetermined time when the solar battery module is at the retraction angle. Sending a command signal to the horizontal rotation driving means and the vertical rotation driving means such that the solar cell module tracks the sun so that the solar cell module is substantially perpendicular to the irradiation direction of light from the sun The module support apparatus of claim 1 configured as follows. A wind direction sensor for detecting a wind direction of wind in the vicinity of the solar cell module;
The command unit transmits a command signal to the horizontal rotation driving means and the vertical rotation driving means such that the retraction angle of the solar cell module is an inclination angle in which the upstream side of the wind direction detected by the wind direction sensor is lowered. The module support apparatus according to claim 1, wherein the module support apparatus is configured to:   The module support device according to claim 1, wherein the control device includes a time correction unit that receives time data from a radio wave and corrects time data transmitted by the timer.   The solar cell apparatus containing the module support apparatus as described in any one of the said Claims 1-6, and the solar cell module supported by this module support apparatus.

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