KR20120067325A - Photovoltaic power generation device and solar cell board adjusting method - Google Patents

Abstract

PURPOSE: A solar power generator and a method for controlling a solar cell plate are provided to track the sun with maximum efficiency by improving the accuracy of controlling a position angle of the solar cell plate. CONSTITUTION: A solar power generator comprises a solar cell plate, and a motor assembly. The solar cell plate comprises a fixed solar cell plate(145), a slide solar cell plate(140), and a movable unit. The movable unit operates the slide solar cell plate so that the slide solar cell plate is slid on a rear surface of the fixed solar cell plate. The motor assembly comprises a plurality of motors(135) generating torque around each shaft, and rotates the solar cell plate in a free direction.

Description

Photovoltaic power generation device and solar cell board adjusting method}

The present invention relates to a photovoltaic device and a method for adjusting a solar panel.

Human beings are developing new energy resources to replace fossil energy due to the depletion of fossil energy, and have great interest in the solar energy field, which is pollution-free and infinitely available among alternative energy.

Solar power generation is a semiconductor device with a power generation part and an electronic part, so there is no mechanical vibration and noise, and the solar cell has a life span of at least 20 years and is easy to semi-automate or automate a power generation system. As it has the advantage of minimizing the cost, various nature-friendly products using solar energy are appearing one after another.

In a solar power generation system, a solar panel is formed by properly arranging modules formed by integrating a plurality of cells, and converts energy of solar light into electric energy.

Such solar panels are installed on a supporting structure, which generally requires a solar tracking system for adjusting the tilt of the solar panels and a column holding the solar panels at a certain height from the ground. It is provided with.

That is, the solar panel generates maximum efficiency when the sun's direct sunlight is incident at a 90-degree angle, but the position of the sun observed in each region changes according to the revolution and rotation of the earth. The movement is repeated in the direction, and the elevation angle is repeated in the north-south direction based on 365 days, thereby increasing the efficiency of solar power generation. As such, the solar tracking system performs rotation and tilt adjustment of the solar panel according to azimuth and elevation angles in order to increase efficiency of photovoltaic power generation.

Conventional solar tracking systems can be divided into two types of single axis type.

The single-axis solar tracking system tracks only the azimuth of the sun and has high structural safety because it uses at least one pillar.

However, the short-term solar tracking system is greatly affected by the irregular shape of the land, which makes it difficult to accurately track the sun and makes it difficult to use the land efficiently. Have

On the other hand, the two-axis solar tracking system has an advantage of improving power generation efficiency compared to the above-described single-axis solar tracking system by adjusting the azimuth angle as well as the azimuth angle.

However, the two-axis solar tracking system is subject to stress on the solar panel and the fixed part due to typhoons or strong winds, and there is a risk of damage, and the number of solar modules installed in the solar panel must be limited in consideration of the wind pressure load. There is no problem.

In addition, the solar tracking system using a hydraulic pump is not only complicated in structure, but also somewhat difficult in terms of structural and precise control by driving a remote motor.

In addition, the conventional solar tracking system is exposed to the risk of environmental damage because the protection of the solar panel at the time of night, rainy season, typhoon, etc. when the solar power generation is not taken into consideration is not considered, which is a device failure or malfunction It may be the cause.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

The present invention reduces the area of land used by applying a solar tracking system of a three-axis system structure having a multiple degree of freedom by a plurality of motor combinations, and efficiency reduction variables such as shadows due to the installation of a plurality of solar panels and solar tracking. To provide a photovoltaic device and a solar panel control method capable of removing the.

The present invention provides a photovoltaic device and a photovoltaic panel that can track the sun with maximum efficiency by applying a three-axis system structure to improve the accuracy, rapid response and followability of the position angle control of the photovoltaic panel for tracking the sun. It is to provide a control method.

The present invention is to provide a photovoltaic device and a method for adjusting a solar panel to enable a more precise and precise control by connecting a multiple degree of freedom motor of the three-axis system structure to the solar panel in a direct drive method.

According to the present invention, when the disturbance is detected using a sensor (for example, at least one of a vibration sensor and a wind speed sensor, etc.), the solar panel is slid to reduce the external resistance by sliding the solar panel, thereby reducing the possibility of breakage. It is to provide a power generation device and a solar panel control method.

According to the present invention, when a strong disturbance (for example, one or more of a gust, typhoon, extreme weather, etc.) is detected using a sensor, the solar panel can be actively folded and the power generation can be coped with to prevent external shock. It is to provide a photovoltaic device and a solar panel control method.

Other objects of the present invention will be readily understood through the following description.

According to an aspect of the present invention, a solar cell apparatus, comprising: a solar panel; And a motor assembly having three motors that generate rotational force about each axis so that the solar panel is rotated in an arbitrary direction.

The solar panel, the fixed solar panel; Slide solar panels; And moving means for manipulating the slide photovoltaic panel to slide toward the rear of the fixed photovoltaic panel.

The solar panel further includes one or more environmental sensors for sensing an external environment with respect to at least one of wind speed and vibration, wherein the controller connected to the photovoltaic device is configured to preset sensor data provided from the environmental sensor. When the threshold value is satisfied, the moving means may be controlled to slide the slide photovoltaic panel.

The fixed photovoltaic panel and the slide photovoltaic panel may be provided on both sides of the photovoltaic panel with respect to the central axis of the photovoltaic panel, and the central shaft may be provided with folding means for rotating and folding the fixed photovoltaic panel. .

The photovoltaic panel further includes a sensing sensor including at least one of at least one environmental sensor for sensing an external environment with respect to at least one of wind speed and vibration, and a light sensing sensor for sensing illuminance, wherein the photovoltaic power generation is performed. The controller connected to the device may control the folding means such that the fixed photovoltaic panel is folded and overlapped when the sensor data provided from the sensing sensor satisfies a preset environmental threshold.

The photovoltaic panel may include a slide photovoltaic panel and a fixed photovoltaic panel each provided on each side of the photovoltaic panel based on a central axis thereof; And folding means provided on a central axis of the solar panel, and the fixed solar panel rotates to be folded and overlapped.

The solar panel further includes one or more environmental sensors for sensing an external environment with respect to at least one of wind speed and vibration, wherein the controller connected to the photovoltaic device is configured to preset sensor data provided from the environmental sensor. When the threshold value is satisfied, the folding means may be controlled such that the fixed solar panel is folded and overlapped.

The photovoltaic panel may further include moving means for manipulating the slide photovoltaic panel to slide toward the rear surface of the fixed photovoltaic panel.

The solar panel further includes one or more environmental sensors for sensing an external environment with respect to at least one of wind speed and vibration, wherein the controller connected to the photovoltaic device is configured to preset sensor data provided from the environmental sensor. When the threshold value is satisfied, the moving means may be controlled to slide the slide photovoltaic panel.

The means of movement may be a linear motor.

The folding means may be a servo motor.

The motor assembly includes a motor A for generating a rotational force rotating about a vertical axis; A motor B fixed part coupled to the shaft of the motor A and rotated by the rotational force generated by the motor A; A motor B coupled to the motor B fixed part and generating a rotational force rotating about a horizontal axis; A motor C fixed part coupled to the shaft of the motor B and rotated by the rotational force generated by the motor B; And a motor C coupled to the motor C fixing part and generating a rotational force that rotates about an axis determined by the rotation of the motor A and the motor B.

The central axis of the solar panel is directly coupled to the axis of the motor C, the solar panel may be rotated clockwise or counterclockwise according to the rotation direction and rotation angle of the motor C.

According to another aspect of the present invention, in the method for adjusting a solar panel performed by a controller connected to a photovoltaic device, the solar panel is provided, for sensing the external environment for at least one of wind speed and vibration. Collecting sensor data from a sensing sensor comprising at least one of an environmental sensor and a light sensing sensor for sensing illuminance; Determining whether sensor data provided from the sensing sensor does not satisfy a first preset environmental threshold; And controlling the slide photovoltaic panel to slide to the rear of the fixed photovoltaic panel when the preset environmental threshold is satisfied, wherein the photovoltaic panel comprises: the fixed photovoltaic panel; The slide solar panel; And by the control of the controller, there is provided a solar panel control method comprising a movement means for manipulating the slide photovoltaic panel to slide to the rear of the fixed photovoltaic panel.

The solar panel adjusting method may further include determining whether the sensor data satisfies a second preset environmental threshold greater than the first environmental threshold or does not satisfy a preset power generation threshold; And controlling the fixed photovoltaic panel to be folded when the second environmental threshold or the preset power generation threshold is not satisfied, wherein the fixed photovoltaic panel and the slide photovoltaic panel are folded. The panel may be provided on both sides of the solar cell panel based on the central axis of the solar panel, and the central axis may include folding means for rotating and folding the fixed solar panel under the control of the controller.

The moving means may be a linear motor, and the folding means may be a servo motor.

According to another aspect of the present invention, in the method for adjusting a solar panel performed by a controller connected to a solar cell apparatus, collecting sensor data from a sensing sensor provided at a predetermined position of the solar panel for the illumination detection Making; Determining whether a shadow is formed on the photovoltaic panel based on sensor data provided from the sensing sensor; And controlling the solar panel to be rotated in a clockwise or counterclockwise direction to minimize shadows formed on the solar panel.

The solar panel is connected to the motor assembly is rotationally controlled, the motor assembly is a motor A for generating a rotational force to rotate about a vertical axis by the control of the controller; A motor B fixed part coupled to the shaft of the motor A and rotated by the rotational force generated by the motor A; A motor B coupled to the motor B fixed part and generating a rotational force rotating about a horizontal axis according to the control of the controller; A motor C fixed part coupled to the shaft of the motor B and rotated by the rotational force generated by the motor B; And a motor C coupled to the motor C fixing unit and generating a rotational force that rotates about an axis determined by the rotation of the motor A and the motor B under the control of the controller.

The central axis of the solar panel is directly coupled to the axis of the motor C, the solar panel may be rotated clockwise or counterclockwise according to the rotation direction and rotation angle of the motor C.

In the controlling step, the controller may perform rotation control of the solar panel to minimize the number of detection sensors providing sensor data indicating shadow formation with reference to the sensor data.

In the controlling, the controller may control the solar panel to be rotated in a rotation direction and a rotation angle in which the amount of power generated by the photovoltaic device is maximized by measuring the amount of power generation for a preset unit time.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to an embodiment of the present invention, by applying a solar tracking system of a three-axis system structure having a multiple degree of freedom by a plurality of motor combinations to reduce the area of the land used, the shadow of the installation and the solar tracking of a plurality of solar panels There is an effect that can remove the efficiency reduction variable.

In addition, by applying a three-axis system structure, there is also an effect to improve the accuracy, quick response and followability of the position angle control of the solar panel for tracking the sun to track the sun with maximum efficiency.

In addition, by connecting the multiple degree of freedom motor of the three-axis system structure directly to the solar panel has the effect of enabling more accurate and precise control.

In addition, when sensing disturbance using a sensor (for example, one or more of vibration sensor, wind speed sensor, etc.), the solar panel is slid to reduce the area, thereby reducing external resistance and reducing the possibility of breakage. .

In addition, if a strong disturbance (for example, one or more of gusts, typhoons, extreme weather, etc.) is detected using the sensor, the solar panel can be folded and power generation can be actively responded to external shocks. There is also an effect.

1 is a view showing a photovoltaic device having a triaxial structure according to an embodiment of the present invention.
2 is a view showing an installation state of a multi-degree of freedom motor of the solar cell apparatus according to an embodiment of the present invention.
3 is a view showing an operating state of the multi-degree of freedom motor of the solar cell apparatus according to an embodiment of the present invention.
Figure 4 is a flow chart showing a sliding / folding processing method of the solar panel according to an embodiment of the present invention.
5 is a view showing a sliding operation state of the solar panel according to an embodiment of the present invention.
6 is a view showing a sliding and folding operation of the solar panel according to an embodiment of the present invention.
7 is a flow chart showing a rotation processing method of a solar panel according to an embodiment of the present invention.
8 is a view showing a rotation operation state of the solar panel according to an embodiment of the present invention.
9A and 9B are views illustrating a rotation operation state of a plurality of solar panels according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In addition, the terms "... unit", "... unit", "... module", and the like described in the specification mean a unit for processing at least one function or operation, which means hardware or software or hardware and It can be implemented in a combination of software.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a view showing a photovoltaic device having a triaxial structure according to an embodiment of the present invention, Figure 2 is a view showing the installation state of the multi-degree of freedom motor of the photovoltaic device according to an embodiment of the present invention. 3 is a view showing an operating state of the multiple degree of freedom motor of the photovoltaic device according to an embodiment of the present invention.

1 and 2, the photovoltaic device is coupled to the support pillar 100, the lower portion of the support pillar 100, the reinforcement base 110 to fix the photovoltaic device is fixed, the upper portion of the support pillar 100 The first motor fixing part 120 is exposed and coupled to the first motor 125, the first motor 125 is coupled to the first motor fixing part 120, the second motor fixing part 130 is coupled to the upper portion of the first motor 125 ), A second motor 135 coupled to the upper portion of the second motor fixing part 130, and a solar panel coupled to the upper portion of the second motor 135.

The photovoltaic device controls the corresponding motor for manipulating the solar panel (e.g. rotation, tilting, etc.) according to the sun's altitude and azimuth angle calculated for tracking the sun, and a sensing signal input from the sensor. When disturbance (eg, one or more of vibration, wind, etc.) is detected by the solar cell, the solar panel may be connected to the controller 190 that controls the corresponding motor to slide or / and fold. The controller 190 may be provided for each photovoltaic device as shown in FIG. 1, or one controller 190 may be connected to integrally control the plurality of photovoltaic devices.

The solar panel includes at least one of a slide solar panel 140, a fixed solar panel 145, a linear motor 150, a servo motor 155, and the like. It is connected to the motor 135. In addition, the solar panel may include a wind speed sensor 165, a vibration sensor 170, and the like to detect disturbance (for example, vibration, wind, etc.), and detects whether a shadow is formed on the solar panel. An optical sensor (for example, an illuminance sensor) for the purpose may be provided at a predetermined location.

Referring to FIG. 3, in which an operating state of a multiple degree of freedom motor of a photovoltaic device is shown, the motor assembly 300 is configured to control three axes by assembling three motors. The third motor 310 rotating about the vertical axis may be installed inside the support pillar 100 as illustrated in FIG. 1, but may be positioned to be exposed to the upper portion of the support pillar 100.

The motor assembly 300 includes a third motor fixing part 320 for fixing the third motor, a third motor 310 coupled to the third motor fixing part 320 to generate a rotational force rotating about a vertical axis, Coupled to the shaft 310-1 of the third motor 310 and coupled to the first motor fixing part 120 and the first motor fixing part 120 which are rotated according to the rotational force of the third motor 310 to form a horizontal axis. The second motor fixing part 130 is coupled to the first motor 125, the shaft 125-1 of the first motor 125 to generate a rotational force to rotate to the center to rotate in accordance with the rotational force of the first motor 125 ), A second motor 135 coupled to an upper portion of the second motor fixing part 130 and generating a rotational force that rotates about an axis determined by the rotation of the third motor 310 and the first motor 125. do. Reference numerals 125-2, 135-2, and 310-2 in FIG. 3 denote terminal boxes of the first motor 125, the second motor 135, and the third motor 310, respectively.

The shaft 135-1 of the second motor 135 is connected to the main shaft 160 of the solar panel, and the solar panel is perpendicular to the axis according to the rotation of the third motor 310 and the first motor 125. Positioned at an inclination angle and rotated according to the rotation angle of the second motor 135, more precise control is possible.

As described above, the third motor 310 for generating a rotational force to rotate about the vertical axis is operated and controlled by the controller 190 for tracking the azimuth of the sun, coupled to the first motor fixing unit 120, the horizontal axis The first motor 125 to generate a rotational force to rotate about the operation is controlled by the controller 190 for tracking the altitude angle of the sun. The second motor 135 is manipulated and controlled by the controller 190 to be rotated at an angle at which the shadow is removed or minimized when the shadow is formed by another solar panel or any obstacle.

The controller 190 may use, for example, pre-programmed optimal design algorithms using previously stored information (i.e., information about the sun's altitude and azimuth) in order to obtain the maximum power generation at the location where the photovoltaic device is installed. Each motor may be controlled by moving the photovoltaic panel by a unit angle in an arbitrary direction to determine a position at which power generation is maximized in real time.

As described above, the photovoltaic device according to the present embodiment has a multiple degree of freedom by operating the first motor 125, the second motor 135, and the third motor 310 to rotate about each axis. It is possible to precisely control the photovoltaic panel and to avoid shadows caused by external variables, thereby enabling photovoltaic generation with higher efficiency. In addition, the photovoltaic device according to the present embodiment has the advantage that the land can be used in a small area compared to the conventional single-axis and two-axis photovoltaic device can be used with high efficiency compared to the area.

4 is a flowchart illustrating a sliding / folding processing method of a solar panel according to an embodiment of the present invention, FIG. 5 is a view illustrating a sliding operation state of the solar panel according to an embodiment of the present invention, and FIG. 6. Is a view showing a sliding and folding operation of the solar panel according to an embodiment of the present invention.

As described above, the controller 190 has a solar panel is disposed according to the altitude and azimuth angle of the sun in order to generate the power generation by the maximum power generation efficiency, and also to generate power in the widest solar panel area Operate and control the motor.

In addition, the controller 190 operates and controls each motor to perform sliding processing and / or folding processing of the solar panel when the solar panel may be damaged due to disturbance or the like. This is because the surface of the solar panel is exposed to the outside, which may be vulnerable to external variables. To this end, the solar panel according to the present embodiment has a structure that allows the solar panel to slide and / or fold so that the solar panel is less disturbed by detecting external variables in advance to solve this problem. It is included.

For convenience of description herein, the operating state of the solar panel, which is the state in which the power generation area is the widest (see FIG. 1, etc.) may be referred to as a basic mode, and by detecting disturbance of one or more slide solar panels 140. The operation state of the solar panel, which is partially or partially sliding to the rear of the fixed solar panel 145 may be referred to as a sliding mode, and the fixed solar panel 145 is completely folded by the servo motor 155 operation control. The operating state of the solar panel rotated by any angle in the direction of folding or folding may be referred to as folding mode. In each of the modes described above, the area of the solar panel used for photovoltaic power generation is in the order of the basic mode, the sliding mode, and the folding mode, and thus the power generation efficiency will also be in this order. Of course, in the folding mode, the photovoltaic device may be set to stop driving.

Hereinafter, the controller 190 will be described with reference to the related drawings how to adjust the state of the solar panel when there is a risk of damage to the solar panel due to disturbance. However, for the following description, the initial operation state of the solar panel will be described taking the case of the basic mode as an example.

Referring to FIG. 4, in step 410, the controller 190 receives sensor data from sensors provided in the solar panel. As described above, the solar panel includes, for example, a wind speed sensor 165, a vibration sensor 170, and a light for detecting disturbance (eg, vibration, wind, etc.) and / or detecting incident light. A detection sensor (not shown) may be provided.

In operation 420, the controller 190 determines whether the sliding condition for the solar panel is satisfied by referring to the provided sensor data.

The sliding condition is such that the slide solar panel 140 has a rear surface of the fixed solar panel 145 in order to reduce the area of the solar panel and enable solar power generation in a state in which external resistance is low (that is, sliding mode). The controller 190 is a preset condition to allow the controller 190 to operate and control the linear motor 150 provided on the rear surface of the fixed solar panel 145 to slide along the guide 150-1.

That is, the sliding condition may be preset so that the sliding operation is performed when the sensor data provided from the sensor provided to detect strong winds such as typhoons, extreme weather, and earthquakes satisfy a predetermined disturbance threshold value for a predetermined time or more. have. Here, the disturbance threshold may be specified in consideration of, for example, the scale of the photovoltaic device and the area of the photovoltaic panel. For example, the sliding condition may be a condition set in advance such that the slide operation is performed when the wind speed of 20 m / s lasts for 10 seconds or more.

When the predetermined sliding condition is satisfied, the controller 190 causes the slide solar panel 140 to slide along the guide 150-1 provided on the rear side of the fixed solar panel 145 in step 430. The operation of the linear motor 150 is controlled.

In FIG. 5, a sliding operation state (ie, sliding mode) for the solar panel is illustrated. As shown, the slide solar panel 140 may be moved to be located at the rear of the fixed solar panel 145 by the operation of the linear motor 150.

The magnet-attached linear motor 150 portion may be attached to the slide solar panel 140, and the guide 150-1 of the linear motor 150 may be attached to the fixed solar panel 145. The tip of the guide 150-1 may be finished in, for example, H type so that the linear motor 150 does not leave the guide 150-1 of the linear motor 150 while moving.

By such a sliding operation, the area of the solar panel may be reduced, thereby making it possible to cope with external resistance.

In FIG. 5, the slide solar panel 140 is slid to be positioned at the rear of the fixed solar panel 145 as a whole. However, the sliding process is performed by sliding solar light in proportion to the size of the disturbance detected by the sensor data. Naturally, only a part of the panel 140 may be slid to be located at the rear of the fixed solar panel 145.

Referring back to FIG. 4, in step 440, the controller 190 determines whether a folding condition for the solar panel is satisfied.

The folding condition is the case that the power generation threshold set by the collected sensor data is not satisfied (for example, night time when solar power is not possible due to insolation, or cloudy or rainy day when the power generation is below the minimum level). In order to minimize the area and to resist disturbances, the solar panels are arranged in a stacked form in a case where the risk of damage to the solar panels due to external variables is great (for example, when the wind speed is significantly high due to a typhoon or the like). This is a condition set in advance.

For example, when the power generation amount is zero by the power generation amount measurement of the controller 190 or when it is recognized that sunlight is not detected by the sensor data by the light sensing sensor, the folding condition may be set in advance. Further, even when the wind speed is remarkably large (for example, when the wind speed of 60 m / s lasts for 5 seconds or more), it can be preset to satisfy the folding condition.

If the predetermined folding condition is satisfied, the flow proceeds to step 450 to perform folding processing on the solar panel. That is, when the folding condition is satisfied, the controller 190 performs the operation control of the servo motor 155 so that the fixed solar panel 145 is completely folded.

When the solar panel is completely folded by the driving of the servo motor 155, the solar cell apparatus can be set to stop operation, thereby enabling the protection of the modules provided in the solar panel so that the surface of the solar panel can be Short circuit accidents, leakage accidents, and the like can be prevented. Therefore, it is possible to maintain high safety for the photovoltaic device and to reduce maintenance costs.

Of course, the folding process may be such that the rotation angle in the direction in which the fixed photovoltaic panel 145 is folded in proportion to the magnitude of the disturbance detected by the sensor data.

In FIG. 4, it is illustrated that the determination of the satisfaction of the sliding condition through the step 420 and the determination of the satisfaction of the folding condition through the step 440 are sequentially performed. However, the determination of the satisfaction of the sliding condition and the folding condition may be performed as one step. Of course. In this case, if it is determined that the folding condition is satisfied, the sliding process and the folding process may be performed together.

6 illustrates a state in which the fixed photovoltaic panel 145 is folded (ie, a folding mode) by the servo motor operation control of the controller 190.

In this case, at least one of the slide photovoltaic panels 140 may be maintained in a non-slid state to allow photovoltaic power generation. As described above, the slide photovoltaic panel 140 is slid in the direction of an arrow. You might want to make sure it's fully folded.

Referring back to FIG. 4, in operation 460, the controller 190 determines whether the photovoltaic environment is a normal photovoltaic environment that does not satisfy the disturbance threshold by referring to the collected sensor data.

If it is a normal photovoltaic environment, the process proceeds to step 470 where the controller 190 operates to return to the original position (ie, the basic mode) if the current state of the solar panel is the sliding mode or the folding mode, or the basic mode. If it is, make sure that the current state is maintained.

That is, in the previous step, if the sliding condition is satisfied by the sliding condition or the folding condition is satisfied by the folding condition, the slide solar panel 140 and the fixed solar panel 145 can be developed at the maximum efficiency. The servo motor 155 and the linear motor 150 are operated and controlled to return to the original position in the mode. However, if the current state is the default mode, the state is maintained.

FIG. 7 is a flowchart illustrating a rotation processing method of a solar panel according to an embodiment of the present invention, and FIG. 8 is a view illustrating a rotation operation state of the solar panel according to an embodiment of the present invention. FIGS. 9A and FIG. 9b is a diagram illustrating a rotation operation state of a plurality of solar panels according to an embodiment of the present invention.

Referring to FIG. 4, in operation 710, the controller 190 receives sensor data from sensors provided in the solar panel. As described above, the solar panel includes, for example, a wind speed sensor 165, a vibration sensor 170, and a light for detecting disturbance (eg, vibration, wind, etc.) and / or detecting incident light. A detection sensor (not shown) may be provided. Here, the plurality of light sensing sensors may be disposed at any position on the surface of the solar panel (eg, the periphery of the solar panel, etc.).

In operation 720, the controller 190 determines whether a shadow is detected on the solar panel.

The controller 190 determines whether there is a region having a relatively low illuminance value using sensor data provided from a plurality of light sensing sensors, and outputs an illuminance value lower than an average value of illuminance values by the respective sensor data. The presence of the shadow may be determined by one or more methods, such as determining whether the photo sensor is present, and if so, in which direction and position of the solar panel.

If the shadow is detected by the determination of step 720, the controller 190 proceeds to step 730 to perform rotation processing control on the solar panel. Rotation processing control may be performed by the controller 190 by the rotation control of the second motor 135 connected to the main shaft 160 of the solar panel, according to the rotation direction and rotation angle of the second motor 135 The photovoltaic panel is rotated.

The rotation operation state of the solar panel is illustrated in FIG. 8, and the rotation operation state for the plurality of solar panels is further illustrated in FIGS. 9A and 9B.

As illustrated in FIG. 9A, when the plurality of solar panels are installed at regular intervals, each of the solar panels may have a shadow formed by another solar panel or any obstacle. The presence of such a shadow is a cause for hindering the photovoltaic efficiency of the photovoltaic device, the conventional photovoltaic device needs a large land area in order to prevent the shadow formation as much as possible.

However, in the photovoltaic device according to the present embodiment, the controller 190 may be manipulated to control the second motor 135 of each photovoltaic device so that the solar panel rotates at a predetermined angle. As illustrated in FIG. 9B, shadows formed on each solar panel may be removed or minimized, thereby allowing for maximum efficiency of photovoltaic power generation.

Referring back to FIG. 7, in step 740, the controller 190 determines whether the amount of power generated by the photovoltaic device is the maximum.

Whether the power generation amount is the maximum can be recognized by determining whether the controller 190 has increased from the previous power generation amount by calculating the power generation amount during the unit time, for example, and a predetermined rotation angle for determining whether the power generation amount is the maximum power generation amount. After the rotation process, the step of calculating and comparing the generation amount may be repeated.

Of course, without determining whether the power generation is the maximum amount of power generation by calculating the amount of power generation, the shadow previously formed by referring to the sensor data provided from the light sensing sensors after performing a rotation process for a predetermined rotation angle for the solar panel If it is removed, or if the shadow still exists, it may be determined whether the amount of power generation is the maximum by whether the shadowed area is minimum.

Whether the shadowed area is minimum may be determined as, for example, whether the number of light sensing sensors that output an illuminance value recognized as a shadow is the minimum, and a predetermined rotation until the shadowed area is minimum. The rotation process for each angle and the shadow area recognition using the sensor data may be repeatedly performed.

Of course, the above-described method for adjusting the solar panel may be performed by an automated procedure in a time series order by a software program or the like embedded in the digital processing apparatus. Codes and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the program is stored in a computer readable media, and read and executed by a computer to implement the method. The information storage medium includes a magnetic recording medium, an optical recording medium and a carrier wave medium.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

100: support pillar 110: reinforcement
120: first motor fixing portion 125: first motor fixing portion
130: second motor fixing part 135: second motor
140: slide solar panel 145: fixed solar panel
150: linear motor 155: servo motor
165: wind speed sensor 170: vibration sensor
300: motor assembly 310: third motor
320: third motor fixing part

Claims (8)

In the photovoltaic device,
Solar panels; And
Including a motor assembly having a plurality of motors for generating a rotational force about each axis to rotate the solar panel in any direction,
The solar panel,
Fixed solar panels;
Slide solar panels; And
And a moving means for manipulating the slide photovoltaic panel to slide toward the rear of the fixed photovoltaic panel.
The method of claim 1,
The solar panel,
The slide photovoltaic panel and the fixed photovoltaic panel each provided on both sides with respect to the central axis of the photovoltaic panel; And
And a folding means provided on a central axis of the solar panel, wherein the fixed solar panel is rotated, folded and overlapped.
The method of claim 2,
The solar panel,
Further comprising a detection sensor comprising at least one of the one or more environmental sensors for sensing the external environment for the one or more of the wind speed and vibration and the light sensing sensor for detecting the illuminance,
The controller connected to the photovoltaic device controls the folding means such that the fixed photovoltaic panel is folded and overlapped when the sensor data provided from the sensing sensor satisfies a preset environmental threshold. .
The method of claim 2,
The solar panel,
Further comprising a detection sensor comprising at least one of the one or more environmental sensors for sensing the external environment for the one or more of the wind speed and vibration and the light sensing sensor for detecting the illuminance,
And a controller connected to the photovoltaic device controls the moving means to slide the slide photovoltaic panel when the sensor data provided from the sensing sensor satisfies a preset environmental threshold.
The method according to claim 1 or 4,
And said moving means is a linear motor.
The method of claim 2,
The folding means is a photovoltaic device, characterized in that the servo motor (servo motor).
The method of claim 1,
The motor assembly,
A motor A for generating a rotational force rotating about a vertical axis;
A motor B fixed part coupled to the shaft of the motor A and rotated by the rotational force generated by the motor A;
A motor B coupled to the motor B fixed part and generating a rotational force rotating about a horizontal axis;
A motor C fixed part coupled to the shaft of the motor B and rotated by the rotational force generated by the motor B; And
And a motor C coupled to the motor C fixed part and generating a rotational force that rotates about an axis determined by the rotation of the motor A and the motor B.
The method of claim 7, wherein
The central axis of the solar panel is directly coupled to the axis of the motor C, the solar panel is rotated clockwise or counterclockwise according to the rotation direction and angle of rotation of the motor C .

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