JPWO2012073705A1 - Solar power plant - Google Patents

Abstract

The light receiving surface 12 of the solar cell panel 10 disposed above the support column 20 erected on the installation surface is the solar power generation device 1 that tracks the sun. The solar power generation device 1 includes a support drive mechanism and a control unit 76. The support drive mechanism supports the solar cell panel 10 and drives the solar cell panel 10 in the azimuth and elevation directions. The control unit 76 controls the support drive mechanism so that the light receiving surface 12 faces in the direction of the sun position. The support column 20 includes a lower support column 22 erected on the installation surface and an upper support column 24 erected continuously on the upper portion of the lower support column 22. In the support driving mechanism, the driving in the azimuth direction is performed by rotating the upper column 24 with respect to the lower column 22. Driving in the elevation angle direction is performed by rotating the solar cell panel 10 at a second position that is above the first position in the standing direction of the support column 20 with the first position on the back surface opposite to the light receiving surface 12 as a fulcrum. Is called.

Description

  The present invention relates to a solar power generation device in which a light receiving surface of a solar cell panel tracks the sun.

  In recent years, photovoltaic power generation has been put to practical use as clean energy, and proposals relating to this have been made (see, for example, Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4). Specifically, in Patent Document 1, a plurality of plate solar cells provided on a surface of each panel and formed by cells that can generate power by sunlight, and a panel connected to the panel are opened and closed. In addition, a solar power generation device is disclosed that includes a panel control mechanism that controls to rotate so as to always face the moving sun.

  Patent Document 2 discloses a concentrating / tracking solar power generation / hot water supply device including a condensing panel and a support base. In this concentrating / tracking type solar power generation / hot water supply device, a support stand is set up from the ground, and the condensing panel is supported by means that can be moved freely up and down, left and right, and a sensor that reacts to sunlight is attached. . The support base supports the light collector in a state in which it is always directed to the sun.

  In Patent Document 3, the solar cell is controlled by the control device so that the turning angle is set at the time set at the same time repeatedly turning and stopping in the direction set at the time set sequentially with time from sunrise to sunset. It is disclosed to track the sun while changing. In addition, the pattern of the nearest coordinate point is selected from the latitude and longitude of the place where the solar system movable stand is installed, and the pattern that matches the season is selected, and the control device controls the solar device according to the pattern and automatically tracks the sun. Is disclosed. Further, it is disclosed that the vehicle automatically becomes a standby position during strong winds and at night.

  Patent Document 4 discloses a solar tracking device that can correct the installation error and track the sun. This solar tracking device or the like is applied to a concentrating solar power generation device including a power generation module that collects sunlight to generate power.

  Other proposals different from the above have also been made (for example, see Patent Document 5).

Utility Model Registration No. 3091001 Japanese Patent No. 3877737 JP 2003-229594 A JP 2009-186094 A JP 2000-223730 A

  In the solar power generation device, sunlight is received by the light receiving surface of the solar cell panel, and photoelectrically converted thereby to generate electric power. Therefore, the light receiving surface must be in a state where sunlight can be received. For example, a solar power generation device installed in a heavy snowy region is buried in snow in the winter, and efficient power generation is inhibited or power generation is not performed. A photovoltaic power generator configured to track the sun by placing a pillar upright on the ground or the rooftop or roof of a building, placing a solar cell panel above the pillar, and solving the problem is solved. This is considered to be one of the effective methods for realizing efficient power generation. However, in order to increase the power generation efficiency, the sun must be suitably tracked even in winter.

  An object of this invention is to provide the solar power generation device which can produce electric power efficiently through the year irrespective of an installation place.

  According to one aspect of the present invention, a light receiving surface of a solar cell panel disposed above a support column erected on an installation surface is a solar power generator that tracks the sun, and supports the solar cell panel, A support driving mechanism that drives the solar cell panel in an azimuth angle direction and an elevation angle direction; and a control unit that controls the support driving mechanism so that the light receiving surface faces in the direction of the sun. Includes a lower column that is erected on an installation surface and an upper column that is continuously erected on the upper portion of the lower column, and in the support drive mechanism, the driving in the azimuth direction is performed by the lower column. In contrast, the driving in the elevation angle direction is performed from the first position in the standing direction of the support with the first position on the back side opposite to the light receiving surface as a fulcrum. The solar panel in the second position, which is the upper side. Is performed by moving, photovoltaic device is provided. According to this, the solar cell panel can be driven in the azimuth angle direction and the elevation angle direction above the support column separated from the installation surface. Therefore, it is possible to generate power efficiently throughout the year regardless of the installation location.

  This solar power generation device can also be configured as follows. A timing unit that counts the current time, a registration unit in which a plurality of times are registered in association with the time and the position of the sun for each hour at the position where the solar power generation device is installed, and the control The control unit controls the support driving mechanism so that the light receiving surface faces in the direction of the position of the sun corresponding to the time corresponding to the current time measured by the time measuring unit in the registration unit. According to this, the sun can be suitably tracked.

  An anemometer for measuring the wind speed, and the control unit, when the wind speed measured by the anemometer is higher than a preset reference wind speed, a current time measured by the timekeeping unit in the registration unit The solar cell panel in which the light receiving surface is facing in the direction of the position of the sun corresponding to the time corresponding to is rotated in a falling direction, and an angle formed by the light receiving surface and a horizontal plane is set in advance. In the state where the support drive mechanism is controlled to be the reference angle, and the support drive mechanism is controlled to be the reference angle, the wind speed measured by the anemometer is lower than the reference wind speed, When the low-speed state continues for a preset reference period, the light-receiving surface is oriented in the direction of the position of the sun associated with a time that matches the current time measured by the timekeeping unit in the registration unit. Face Sea urchin, controls the support drive mechanism. According to this, when the wind speed becomes higher than the reference wind speed, the solar battery panel is brought into a lying state, and damage to the solar power generation device due to strong wind can be prevented. The state in which the solar cell panel is laid down is a state in which the solar cell panel is laid down, in other words, a state in which the solar cell panel falls down and lies down. In this case, the light receiving surface is horizontal or nearly horizontal. Further, for example, when the wind condition changes every moment in winter, efficient solar power generation can be resumed when the wind condition falls below the reference wind speed and stabilizes. It is possible to prevent the occurrence of a state in which the rotation operation with the solar cell panel as the reference angle and the rotation operation in the direction of the sun are frequently repeated as the wind speed changes.

  The anemometer is provided at a position below the support drive mechanism and above the lower column in the standing direction of the column. According to this, the wind speed of the wind which blows in the place where the solar power generation device was installed can be measured.

It is a figure which shows an example of the outline of a solar power generation device. FIG. 2 is a view taken in the direction of arrow Y in FIG. 1, showing an outline of a mechanism for driving the solar cell panel of the photovoltaic power generation apparatus in the elevation angle direction, and showing a state where the solar cell panel is inverted. FIG. 2 is a view taken in the direction of arrow Y in FIG. 1, showing an outline of a mechanism for driving the solar cell panel of the photovoltaic power generation apparatus in the elevation angle direction, and showing a state in which the solar cell panel is lying down. It is a functional block diagram which shows an example of the control mechanism for driving the solar cell panel of a solar power generation device to an azimuth angle direction and an elevation angle direction.

  Embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be employed in the same technical idea. For example, some of the configurations shown below may be omitted or replaced with other configurations. Other configurations may be included.

<Solar power generator>
As shown in FIG. 1, the solar power generation device 1 includes a solar cell panel 10 and a support column 20. The solar power generation device 1 is a type of solar power generation device in which the solar cell panel 10 is driven in the azimuth and elevation directions (see FIG. 1), and the light receiving surface 12 of the solar cell panel 10 tracks the sun. The solar cell panel 10 is a conventionally used solar cell panel. The solar cell panel 10 is configured by arranging and fixing a plurality of solar cell panel modules in a planar shape. For example, as shown in FIG. 1, in a solar cell panel 10 in which 20 solar cell panel modules (in FIG. 1, vertical direction: 4 × horizontal direction: 5) are arranged and fixed, the power generation capacity is about 4 kW. can do. Further, in the solar cell panel 10 in which 15 (for example, vertical direction: 5 × horizontal direction: 3) solar cell panel modules are arranged and fixed, the power generation capacity can be about 3 kW.

  The column 20 includes a lower column 22 and an upper column 24. The support column 20 is erected on the installation surface. That is, the support column 20 is installed while standing on the installation surface. Specifically, the lower column 22 is erected on the installation surface, and the upper column 24 is erected continuously from the upper portion of the lower column 22. The installation surface on which the column 20 is installed is a horizontal surface (including a substantially horizontal surface) such as the ground surface or the roof or roof of a building. The solar cell panel 10 is disposed above the column 20 (upper column 24). Above the support column 20, the solar cell panel 10 is attached in a state as shown in FIGS. The attachment of the solar cell panel 10 to the upper column 24 will be described later.

  An azimuth driving mechanism for rotating the solar cell panel 10 in the azimuth direction is provided between the lower column 22 and the upper column 24. The azimuth angle driving mechanism includes, for example, the gear 26, the shaft rotation motor 82, the rotary encoder 86, and the proximity sensor 88. The gear 26 is attached between the lower column 22 and the upper column 24. The shaft rotation motor 82 is, for example, an inverter-driven geared motor, and rotates the gear 26. The rotary encoder 86 and the proximity sensor 88 will be described later. When the shaft rotation motor 82 is driven and the force by the shaft rotation motor 82 is transmitted to the gear 26 via a predetermined gear (not shown), the gear 26 is moved in a direction corresponding to the rotation direction of the shaft rotation motor 82. Rotate. Accordingly, the upper support column 24 to which the solar cell panel 10 is attached rotates with respect to the lower support column 22 in a direction corresponding to the rotation direction of the gear 26. Accordingly, the solar cell panel 10 rotates in the azimuth direction.

  As shown in FIGS. 2 and 3, an L-shaped fixture 28 is provided above the support 20. The upper side of the column 20 is the tip side of the upper column 24 opposite to the gear 26. One end side of the fixture 28 is connected to the first position on the back surface of the solar cell panel 10 opposite to the light receiving surface 12 via the link mechanism 30. An electric cylinder 83 included in the elevation drive mechanism is provided on the other end side of the fixture 28. The electric cylinder 83 is attached to the other end of the fixture 28 via the link mechanism 32. The tip of the rod 84 of the electric cylinder 83 is connected to the second position on the back surface of the solar cell panel 10 opposite to the light receiving surface 12 via the link mechanism 34. The electric cylinder 83 is an electric cylinder conventionally used. The electric cylinder 83 includes a cylinder motor 85. Expansion and contraction of the rod 84 of the electric cylinder 83 is performed by a cylinder motor 85. As the cylinder motor 85, an inverter-driven motor is employed. The electric cylinder 83 is provided with a rotary encoder 87 as in the case of the shaft rotation motor 82. A proximity sensor 89 is provided on one end side of the fixture 28. The rotary encoder 87 and the proximity sensor 89 are included in the elevation angle drive mechanism, and constitute an elevation angle drive mechanism together with the electric cylinder 83. The rotary encoder 87 and the proximity sensor 89 will be described later.

  When the cylinder motor 85 constituting the electric cylinder 83 is driven and the cylinder motor 85 is rotated in one direction, the rod 84 extends in the electric cylinder 83 which is in a state as shown in FIG. 3, for example (shown in FIG. 2). (See “Stretch direction”). At this time, the electric cylinder 83 swings with respect to the fixture 28 by the link mechanism 32. The tip of the rod 84 is rotated by the link mechanism 34. The solar cell panel 10 is turned up to one side in the elevation direction so as to shift to the inverted state as shown in FIG. 2 at the second position with the link mechanism 30 at the first position as a fulcrum. When the cylinder motor 85 constituting the electric cylinder 83 is driven and the cylinder motor 85 is rotated in the other direction, the rod 84 is contracted in the electric cylinder 83 which is in the state shown in FIG. 2, for example (see FIG. 2). (See “Stretch direction”). At this time, the electric cylinder 83 swings by the link mechanism 32 with respect to the fixture 28 as in the case of the transition to the inverted state. The tip of the rod 84 is rotated by the link mechanism 34. However, the direction in which the electric cylinder 83 swings and the direction in which the tip of the rod 84 rotates are opposite to those in the transition to the inverted state. The solar cell panel 10 is pivoted to the other side in the elevation direction so that the link mechanism 30 at the first position is used as a fulcrum and the second position is shifted to the lying down state as shown in FIG. Fall down.

  The rotation of the solar cell panel 10 in the elevation angle direction is performed corresponding to the length of expansion and contraction of the rod 84. In the back surface opposite to the light receiving surface 12 of the solar cell panel 10, the second position where the link mechanism 34 is provided is the direction in which the support column 20 is erected on the installation surface compared to the first position where the link mechanism 30 is provided. It is on the upper side in the (standing direction). The standing direction is a vertical direction. The rotation of the solar cell panel 10 in the elevation direction as described above is performed by pushing or pulling a second position higher than the first position with the first position as a fulcrum.

  In the solar power generation device 1, as shown in FIGS. 1 to 3, an anemometer 90 is provided at a position below the gear 26 and above the lower column 22. In the anemometer 90, the wind speed of the wind blowing in the place where the solar power generation device 1 is installed is measured. The anemometer 90 can employ various types of anemometers. For example, a cup-type anemometer or a windmill-type anemometer is employed. The installation position of the anemometer 90 may be a position different from the above-described position as long as the wind speed can be suitably measured. However, when there is snow, it is recommended that the position be difficult to be buried in snow.

<Control mechanism>
The solar power generation device 1 has a control mechanism 70. As shown in FIG. 4, the control mechanism 70 includes a control box 72, a shaft rotation motor 82, an electric cylinder 83, rotary encoders 86 and 87, proximity sensors 88 and 89, and an anemometer 90. The rotary encoder 86 is a rotary encoder for measuring the rotation amount (rotation angle) of the shaft rotation motor 82. The rotary encoder 87 is a rotary encoder that constitutes the electric cylinder 83 and measures the amount of rotation (rotation angle) of the cylinder motor 85 for driving the electric cylinder 83. The proximity sensor 88 is a proximity sensor for detecting an overrun in driving the solar cell panel 10 in the azimuth direction. The proximity sensor 89 is a proximity sensor for detecting an overrun regarding driving of the solar cell panel 10 in the elevation angle direction.

  The control box 72 includes a connection interface (connection I / F) 74, a control unit 76, a storage unit 78, and a timer 80. The control box 72 is connected to the shaft rotation motor 82, the electric cylinder 83, the rotary encoders 86 and 87, and the proximity sensors 88 and 89 through signal cables. The connection interface 74 is an interface for connecting the control box 72 to the shaft rotation motor 82, the electric cylinder 83 (specifically, the cylinder motor 85), the rotary encoders 86 and 87, the proximity sensors 88 and 89, and the anemometer 90. It is. To the connection interface 74, signal cables connected to the shaft rotation motor 82, the electric cylinder 83, the rotary encoders 86 and 87, the proximity sensors 88 and 89, and the anemometer 90 are connected. The external terminal 100 is connected to the connection interface 74 via a signal cable.

  The control unit 76 controls various operations in the solar power generation device 1. Various operations in the solar power generation device 1 are such that the light receiving surface 12 faces the direction of the position of the sun, and operations that place the solar cell panel 10 in a predetermined posture when the wind speed increases. including. The control unit 76 includes, for example, an arithmetic processing unit, a program ROM, a RAM, and the like. The arithmetic processing unit executes a computer program stored in the program ROM on the RAM. As a result, the control unit 76 performs various processes. At that time, the control unit 76 outputs a control signal to each of the shaft rotation motor 82 and the electric cylinder 83 via a signal cable connected to the connection interface 74. The control unit 76 acquires a detection signal indicating each piece of information measured by the rotary encoders 86 and 87, detected by the proximity sensors 88 and 89, or measured by the anemometer 90.

  The storage unit 78 stores a sun position table. The sun position table is a table in which a plurality of times and the positions of the sun for each hour at the position where the photovoltaic power generation apparatus 1 is installed (specified by latitude and longitude) are associated and registered. Specifically, in the sun position table, the sun position at 8:00 am and 8:00 am, the sun position at 9:00 am and 9:00 am, etc. For example, at an interval of one hour, a plurality of times and the position of the sun for each hour are associated and registered. The registered time may be at regular intervals or not. When the registered time is every fixed interval, it may be an interval other than one hour interval. The registered time may be appropriately set in consideration of various conditions. Since the position (orbit) of the sun differs for each period (season) (specifically, it varies from day to day), the sun position table may correspond to each period, for example. In this case, the storage unit 78 stores a plurality of sun position tables for each period. The position of the sun is specified by the azimuth and the elevation angle (altitude). The sun position table includes a first table and a second table. The first table is a table in which a plurality of times are registered in association with time and directions for each time. The second table is a table in which a plurality of times and elevation angles for each time are associated and registered. The sun position table may have a configuration in which a plurality of times, azimuths per hour, and elevation angles per hour are registered together. The position of the sun for each hour registered in the sun position table, specifically, the azimuth for each hour and the elevation angle for each hour are created based on information disclosed by the Japan Meteorological Agency, for example.

  The storage unit 78 further stores a reference wind speed, a reference angle, and a reference period. The reference wind speed is set in the range of 10 m / sec to 15 m / sec, for example. The reference angle is set, for example, horizontally or at an angle that matches the elevation angle when the position of the sun is highest at the position where the solar power generation device 1 is installed. Specifically, the reference angle is set to 0 °, 16 °, or 20 °, for example. The reference period is set to 30 minutes, for example. The reference wind speed, the reference angle, and / or the reference period may be appropriately changed within a predetermined range by operating the external terminal 100 connected to the connection interface 74, for example. An operation unit for inputting a predetermined command may be provided in the control box 72, and the operation unit may be operated to change the reference wind speed, the reference angle, and / or the reference period. The timer 80 measures the date and time.

  Next, driving in the azimuth and elevation directions of the solar cell panel 10 realized by the control mechanism 70 will be described. When the time measured by the timer 80 reaches a predetermined time, the control unit 76 stores the sun position table (first table and second table) stored in the storage unit 78 or from the storage unit 78 in advance. The sun position table (first table and second table) read out and stored in the RAM included in the control unit 76 is accessed. When a plurality of sun position tables for each period are stored in the storage unit 78, the control unit 76 accesses the sun position table related to the day today. The control unit 76 controls the shaft rotation motor 82 and the electric cylinder 83 so that the light receiving surface 12 faces in the direction of the sun position associated with the time corresponding to the current time counted by the timer 80 in the sun position table. Control. Specifically, the control unit 76 measures the rotation amount (rotation angle) of the shaft rotation motor 82 based on the detection signal from the rotary encoder 86, and the direction of the light receiving surface 12 is measured by the timer 80 in the sun position table. The shaft rotation motor 82 is driven to rotate the solar cell panel 10 so that the direction corresponding to the time corresponding to the current time is obtained. At this time, the control unit 76 detects an overrun with a detection signal from the proximity sensor 88. The control unit 76 uses the detection signal from the rotary encoder 87 to measure the amount of rotation (rotation angle) of the cylinder motor 85 that constitutes the electric cylinder 83, while the direction of the light receiving surface 12 is measured by the timer 80 in the sun position table. The electric cylinder 83 is driven to rotate the solar cell panel 10 so that the elevation angle associated with the time corresponding to the current time is set. At this time, the control unit 76 detects an overrun with a detection signal from the proximity sensor 89.

  The control unit 76 continuously acquires detection signals indicating the wind speed measured by the anemometer 90. When the wind speed indicated by the acquired detection signal is higher than the reference wind speed, the control unit 76 controls the electric cylinder 83. Specifically, the control unit 76 lays down the solar cell panel 10 in which the light receiving surface 12 faces in the direction of the sun position associated with the time corresponding to the current time measured by the timer 80 in the sun position table. The angle θ (see FIG. 1) formed by the light receiving surface 12 and the horizontal plane is set to a reference angle. At this time, the control unit 76 measures the rotation amount (rotation angle) with the detection signal from the rotary encoder 87 and detects the overrun with the detection signal from the proximity sensor 89 as described above.

  In a state where the wind speed measured by the anemometer 90 is higher than the reference wind speed, the solar battery panel 10 is laid down, and the reference angle is set, the wind speed measured by the anemometer 90 is lower than the reference wind speed and low. When this state is continued for the reference period, the control unit 76 controls the shaft rotation motor 82 and the electric cylinder 83. Specifically, the control unit 76 causes the light receiving surface 12 to face in the direction of the sun position associated with the time that matches the current time measured by the timer 80 in the sun position table. At this time, the control part 76 performs the same process as the process mentioned above.

  The storage unit 78 may store the reference azimuth angle. When the wind speed measured by the anemometer 90 is higher than the reference wind speed, the control unit 76 sets the solar cell panel 10 as a reference angle and controls the shaft rotation motor 82 to set the orientation of the light receiving surface 12 as the reference azimuth angle. The direction corresponds to. At this time, the control unit 76 measures the rotation amount (rotation angle) with the detection signal from the rotary encoder 86 and detects overrun with the detection signal from the proximity sensor 88.

  The control box 72 may be configured as follows. Based on the information measured, detected, or measured by the rotary encoder 86, the proximity sensor 88, and the anemometer 90, the shaft rotary motor 82 is driven, and measured and detected by the rotary encoder 87, the proximity sensor 89, and the anemometer 90. Alternatively, the driving of the electric cylinder 83 (specifically, the cylinder motor 85) based on each measured information may be controlled by a separate control unit. In this case, the storage unit may also be provided on the shaft rotation motor 82 side and the electric cylinder 83 side. The storage unit on the shaft rotation motor 82 side stores the above-described first table as the sun position table. The storage unit on the electric cylinder 83 side stores the above-described second table as the sun position table. The control unit on the shaft rotation motor 82 side accesses the first table and executes the control as described above. The control unit on the electric cylinder 83 side accesses the second table and executes the control as described above.

  In the present embodiment described above, the support column 20 is divided into a lower support column 22 and an upper support column 24. Between the divided lower column 22 and upper column 24, an azimuth drive mechanism is provided by a shaft rotation motor 82 or the like. The upper column 24 is rotated with respect to the lower column 22 by an azimuth angle driving mechanism. Accordingly, the solar cell panel 10 rotates in the azimuth direction. An elevation angle drive mechanism using an electric cylinder 83 or the like is provided on the upper support column 24 side. The solar cell panel 10 is rotated in the elevation direction by the elevation drive mechanism. Therefore, even if the lower support column 22 is buried in snow in winter, the solar cell panel 10 can be driven appropriately. The lower support column 22 may be set to a height that takes into account the amount of snowfall at the position (region) where the photovoltaic power generator 1 is installed. For example, the lower column 22 may have a height from the installation surface to the upper end of the lower column 22 of about 3 m or more.

  By the way, when the lower support column 22 has such a height, the solar cell panel 10 is exposed to strong winds and receives a large wind pressure. In this regard, in the present embodiment, when the wind speed is higher than the reference wind speed, the solar cell panel 10 is rotated in a lying down direction. When the wind is stopped from a state where the wind speed is higher than the reference wind speed and the state where the wind is stopped continues for the reference period, the light receiving surface 12 is directed in the direction of the position of the sun associated with the time corresponding to the current time. The solar cell panel 10 is rotated in the azimuth direction and the elevation direction so as to face. Therefore, the solar power generation device 1 can be prevented from being damaged by wind pressure, and a long life can be realized.

  According to this embodiment mentioned above, the following solar power generation devices can also be specified. Specifically, it is a solar power generation device in which a light receiving surface of a solar cell panel disposed above a support column erected on an installation surface tracks the sun, and supports the solar cell panel, and the solar cell panel Is associated with the support drive mechanism that drives the azimuth angle and the elevation direction, the time measuring unit that measures the current time, the time, and the position of the sun for each hour at the position where the solar power generation device is installed. A plurality of registered registration units, and the support driving mechanism so that the light receiving surface faces in the direction of the position of the sun corresponding to the time corresponding to the current time measured by the time measuring unit in the registration unit. It is also possible to specify a solar power generation device having a control unit to be controlled. Also in such a solar power generation device, the above-described control based on the wind speed measured by the anemometer 90 may be performed.

DESCRIPTION OF SYMBOLS 1 Photovoltaic power generation device 10 Solar cell panel, 12 Light-receiving surface 20 Support | pillar, 22 Lower support | pillar, 24 Upper support | pillar 26 Gear, 28 Fixing tool 30, 32, 34 Link mechanism 70 Control mechanism, 72 Control box, 74 Connection interface 76 Control Unit, 78 storage unit, 80 timer, 82 axis rotation motor 83 electric cylinder, 84 rod, 85 cylinder motor 86, 87 rotary encoder, 88, 89 proximity sensor 90 anemometer, 100 external terminal

Claims (4)

A solar power generation device in which a light receiving surface of a solar cell panel disposed above a support column erected on an installation surface tracks the sun,
A support driving mechanism for supporting the solar cell panel and driving the solar cell panel in the azimuth and elevation directions;
A control unit that controls the support drive mechanism so that the light receiving surface faces in the direction of the sun,
The column includes a lower column that is erected on the installation surface, and an upper column that is continuously erected on the upper part of the lower column.
In the support drive mechanism,
The driving in the azimuth direction is performed by rotating the upper column with respect to the lower column,
The drive in the elevation angle direction rotates the solar cell panel at a second position that is above the first position in the upright direction of the column with the first position on the back side opposite to the light receiving surface as a fulcrum. A solar power generation device. A timekeeping section that measures the current time,
A plurality of registration units in which time and the position of the sun for each hour at the position where the photovoltaic power generation apparatus is installed are associated with each other, and
The control unit controls the support driving mechanism such that the light receiving surface faces a direction of the position of the sun corresponding to a time corresponding to a current time measured by the time measuring unit in the registration unit. Item 2. The solar power generation device according to Item 1. Has an anemometer to measure the wind speed,
The controller is
When the wind speed measured by the anemometer is higher than a preset reference wind speed, in the direction of the position of the sun associated with the time corresponding to the current time measured by the timekeeping unit in the registration unit. The support panel is rotated so that the solar cell panel facing the light receiving surface faces and the angle formed by the light receiving surface and a horizontal plane becomes a preset reference angle,
In a state where the support drive mechanism is controlled to be the reference angle, the wind speed measured by the anemometer is lower than the reference wind speed, and the state where the wind speed is lower is continued for a preset reference period. The support drive mechanism is controlled so that the light receiving surface is directed in the direction of the position of the sun associated with the time corresponding to the current time measured by the timekeeping unit in the registration unit. The solar power generation device described in 1.   4. The photovoltaic power generation apparatus according to claim 3, wherein the anemometer is provided at a position below the support drive mechanism and above the lower column in the standing direction of the column.

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