KR101648464B1 - Portable solar photovoltaic power generating system and device - Google Patents

Abstract

A portable solar power generation system and apparatus are disclosed. The portable solar power generation system according to an embodiment of the present invention has a movable type and a prefabricated structure and performs solar power generation by tracking a sun position by controlling a motor having a biaxial structure according to a measured value of a solar sensor A photovoltaic power generation unit for storing generated electricity in a battery; A monitoring unit monitoring the power generation status of the solar power generation unit and outputting the power generation status so that the power generation status can be confirmed from the outside; A power supply unit for controlling the power of the solar power generation unit and the monitoring unit; And monitoring the generation voltage of the photovoltaic power generation unit and the generated current, and when at least one of the photovoltaic power generation units of the monitoring unit is turned off, And a control unit for controlling the power unit to turn on the power of the monitoring unit and the solar power generation unit when the temperature exceeds the threshold value.

Description

[0001] Portable solar photovoltaic power generating system and device [0002]

The present invention relates to a portable solar power generation system and apparatus.

Recently, new and renewable energy, which is a new energy source replacing fossil fuels such as petroleum, coal, nuclear energy and natural gas, has been researched due to depletion of fossil energy. have.

Photovoltaic power using solar energy is a power generation system that converts solar light directly into electric energy using solar cells without the aid of generator. When light energy is injected into a solar cell made of semiconductor, electrons move, Is used. Such solar power generation uses infinite or no-pollution solar energy, so it does not cost fuel, and there is no air pollution or waste.

Korean Patent Laid-Open No. 10-2014-0040871 (prefabricated photovoltaic power generation device) is provided with a photovoltaic module which is easy to install, and which can perform maintenance and management of the photovoltaic module at the shoulder of the road without control of the vehicle, A power generation device is also disclosed.

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.

Korean Patent Publication No. 10-2014-0040871

The present invention is to provide a portable solar power generation system and apparatus capable of obtaining electric energy by being removable and easily assembled when a portable type and a prefabricated structure can be mounted on a vehicle or the like.

The present invention is intended to provide a portable solar power generation system and apparatus that enables the most efficient solar power generation according to installation situation or position through biaxial solar tracking.

In the present invention, when the sunlight can not be used at night or on a cloudy day, the entire system power is turned off, and when a certain amount of light is detected, the entire system power is turned on to start power generation, And to provide a portable photovoltaic power generation system and an apparatus for preventing such a problem.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided a portable and prefabricated structure, which controls a motor having a two-axis structure according to a measured value of a solar sensor, A photovoltaic power generation unit; A monitoring unit monitoring the power generation status of the solar power generation unit and outputting the power generation status so that the power generation status can be confirmed from the outside; A power supply unit for controlling the power of the solar power generation unit and the monitoring unit; And monitoring the generation voltage of the photovoltaic power generation unit and the generated current, and when at least one of the photovoltaic power generation units of the monitoring unit is turned off, And controlling the power supply unit to turn on the power of the monitoring unit and the solar power generation unit when the temperature exceeds the threshold value.

According to another aspect of the present invention, there is provided a solar panel comprising: a solar panel having at least one solar cell module mounted on an upper surface thereof; An upper motor device for driving the upper motor while rotating the solar panel to rotate the solar panel about a horizontal axis parallel to the ground surface; A lower motor device for supporting the upper motor device and driving the lower motor to rotate the upper motor device about a vertical axis perpendicular to the ground surface; And a system support for supporting the lower motor device, wherein the solar panel, the upper motor device, the lower motor device, and the pedestal are transported in a separated state and assembled in the field. Is provided.

A solar sensor to track the position of the sun; And a motor control unit for controlling the rotation of the upper motor and the lower motor according to the measured value of the solar sensor.

Wherein the solar sensor includes four CDS sensors arranged in a ten-sided shape, wherein the motor controller determines the position of the CDS sensor having the lowest resistance value as the sun position, The rotation of the upper motor and the rotation of the lower motor can be controlled.

The solar light sensor includes a sensor shielding portion, which is a three-dimensional structure having a predetermined height having a cross-sectional shape of ten (10), and four CDS sensors arranged in the space between the sensor shielding portions. The motor control unit drives the lower motor so that the measured values of the two CDS sensors arranged in the east and the west are the same and horizontally rotates the solar panel, and then the measured values of the two CDS sensors arranged in the north and the south are the same The upper motor can be driven to rotate the solar panel about the horizontal axis.

Or the solar sensor includes four CDS sensors arranged in a ten-sided shape, wherein the motor control unit controls the resistance of two neighboring CDS sensors located in the same area among the areas centered on the horizontal axis, And when the difference is greater than the error range, the lower motor is driven to horizontally rotate the solar panel, so that the difference between the resistance values of the two CDS sensors falls within an error range, and a low resistance value around the horizontal axis It is possible to rotate the solar panel by driving the upper motor so that the area where the CDS sensor is located is lower.

Or the solar sensor includes four CDS sensors arranged in a ten-sided shape, wherein the motor control unit compares the resistance values of two opposing CDS sensors placed on the horizontal axis, The lower motor is driven to horizontally rotate the solar panel so that the difference between the resistance values of the two CDS sensors falls within an error range and the resistance values of the two CDS sensors placed perpendicular to the horizontal axis are compared, It is possible to rotate the solar panel by driving the upper motor so that the portion where the low CDS sensor is located is positioned lower.

Or the solar light sensor comprises a CDS sensor arranged in a circular shape on the upper surface of the solar panel and a sensing bar provided perpendicularly to the solar panel at the center of the circular plate, And the lower motor is driven so that the horizontal axis is perpendicular to the shadow to horizontally rotate the solar panel. Then, the upper motor is driven so that the shadow is reduced, The solar panel can be rotated about the horizontal axis.

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

According to the embodiment of the present invention, since it has a movable and prefabricated structure, it can be mounted on a vehicle or the like, and can be easily taken out and assembled when necessary, thereby obtaining electric energy. There is an effect of enabling solar power generation.

In addition, when the sunlight can not be used at night or on a cloudy day, the entire system is turned off. When a certain amount of light is detected, the entire system is turned on to start the power generation. .

1 is a configuration diagram of a portable solar power generation system according to an embodiment of the present invention,
FIG. 2A is a perspective view of a portable solar power generation apparatus according to an embodiment of the present invention, FIG.
2B is an exploded perspective view of the portable photovoltaic device shown in FIG. 2A,
FIGS. 3A and 3B are views showing components included in a portable photovoltaic power generation apparatus according to an embodiment of the present invention;
4 is a circuit diagram of a solar light sensor according to an embodiment of the present invention,
5A is a three-dimensional perspective view of a solar sensor according to an embodiment of the present invention,
FIG. 5B is a top view of the solar light sensor shown in FIG. 5A,
FIG. 5C is a sectional view taken along line BB in FIG. 5A,
6 illustrates a solar sensor according to another embodiment of the present invention,
FIG. 7A is a view showing an example of the solar tracking principle using the solar sensor of FIG. 6,
FIG. 7B is a view showing another example of the solar tracking principle using the solar sensor of FIG. 6;
8 illustrates a solar light sensor according to another embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . 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. The singular expressions include plural expressions unless the context clearly dictates 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.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the terms " part, "" module," and the like, which are described in the specification, mean a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. 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.

2 is a perspective view of a portable portable photovoltaic power generation apparatus according to an embodiment of the present invention. FIG. 2B is a cross- FIGS. 3A and 3B are views showing components included in a portable portable photovoltaic power generation apparatus according to an embodiment of the present invention. FIG.

The portable solar power generation system 100 according to an embodiment of the present invention has a prefabricated structure and monitors the power generation status of the portable type solar power generation unit by the monitoring unit, The power of the solar power generation unit and the monitoring unit can be selectively turned on / off to enable power generation using solar light in any situation, and unnecessary power consumption can be reduced.

1, the portable solar power generation system 100 according to the present embodiment includes a solar power generation unit 110, a monitoring unit 120, a power supply unit 130, and a control unit 140.

The solar power generation unit 110 converts sunlight energy into electric energy while tracking sunlight, thereby performing high-efficiency power generation. The solar power generation unit 110 includes a portable solar power generation device 112, a solar light sensor 114, and a motor control unit 116. And may further include an emergency test switch 118 in accordance with an embodiment.

The portable photovoltaic power generation device 112 has a simple structure and is configured as a portable type so that it can be installed in any situation or position and generates electric energy by performing solar power generation.

2A to 3B, the portable solar power generator 112 includes a solar panel 10, a solar panel support 21, an upper motor 23, an upper motor holder 25, an upper motor support 31, A lower motor holder 33, a lower motor 35, a lower motor support 37, a system pedestal holder 39, and a system pedestal 40.

Hereinafter, when the portable solar power generator 112 is installed perpendicularly to the ground surface for the sake of understanding and explanation of the present invention, the axis in the longitudinal direction is referred to as a vertical axis A1, and the axis perpendicular thereto is parallel to the ground surface Assume that the axis is the horizontal axis (A2).

At least one solar cell module 10-1 is provided on the upper surface of the solar panel 10 to receive sunlight to generate electricity.

The solar panel support 21 includes an upper support plate 21-1 for supporting the solar panel 10 and a first coupling hole 21-3 coupled to the rotary shaft 23-1 of the upper motor 23 And a lower body 21-2.

The rotary shaft 23-1 of the upper motor 23 is placed parallel to the ground surface. Therefore, when the solar panel support 21 rotates in accordance with the rotation of the upper motor 23, the solar panel 10 supported by the solar panel support 21 rotates about the horizontal axis A2, .

The upper motor 23 may be a reduction gear motor and rotates in a forward or reverse direction according to a control signal of a motor control unit 116 to be described later to rotate the solar panel 10 about the horizontal axis A2.

The upper motor holder 25 includes a vertical fixing part 25-1 formed with a first body insertion hole 25-2 into which the upper motor body 23-3 is inserted, And includes a fixed horizontal fixing portion 25-3.

The upper motor support 31 connects the upper motor unit 20 and the lower motor unit 30. The upper motor support unit 31 includes a second coupling hole 31-1 coupled to the rotary shaft 35-1 of the lower motor 35, And is coupled to the upper motor holder 25. And functions as a motion transmission medium for rotating the upper motor unit 20 and the solar panel 10 about the vertical axis A1 in accordance with the rotation of the lower motor 35. [

The lower motor 35 may be a reduction gear motor and rotates forward or backward in accordance with a control signal of the motor control unit 116 to be described later to rotate the solar panel 10 about the vertical axis A1.

The lower motor holder 33 is a portion for holding the lower motor 35 through the second body insertion hole 33-1 and is fixed to the lower motor support 37 so that the lower motor 35 is supported by the lower motor support 37). The lower motor 35 may be fitted to the lower motor holder 33 and fixed to the lower motor support 37.

The lower motor support 37 is a pipe structure for supporting the lower motor 35, and the lower motor 35 is located inside the upper part.

The system support holder 39 is supported by the lower motor support 37 at the upper portion and the system support 40 is fitted at the lower portion with a predetermined inclination to support the portable solar power generator 112 as a whole.

The third coupling hole 39-1 to which the system pedestal 40 is fitted has a predetermined inclination (for example, 30 degrees) in the downward direction so that the system pedestal 40 can be fitted have.

The third coupling holes 39-1 are formed at intervals of 120 degrees on the surface of the system support holder 39, so that stable support can be achieved.

The system pedestal 40 may have a detachable pipe structure for the system pedestal holder 39 for mobility, and may be made of, for example, aluminum.

The portable solar power generation apparatus 112 is combined and classified as the solar panel 10, the upper motor unit 20, the lower motor unit 30, and the system pedestal 40 in order to enhance mobility and facilitate on-site assembly . The upper motor unit 20 includes a solar panel support 21, an upper motor 23 and an upper motor holder 25. The lower motor unit 30 includes an upper motor support 31, a lower motor holder 33, a lower motor 35, a lower motor support 37, and a system pedestal holder 39.

That is, the solar panels 10, the upper motor device 20, the lower motor device 30, and the system pedestal 40 are transported in a state of being assembled in a primary assembly, The photovoltaic device 112 can be installed.

The solar panel 10 of the portable solar power generator 112 according to the present embodiment rotates about the vertical axis A1 and the horizontal axis A2 according to the operation of the upper motor 23 and the lower motor 35, By tracking, the power generation efficiency can be increased.

For this purpose, the solar power generation unit 110 may include a solar sensor 114 and a motor control unit 116. The solar power generating unit 110 controls the rotation of the upper motor 23 and the lower motor 35 based on the data measured through the solar sensor 114 so that the solar panel 10 It can always be placed in the direction toward the sun.

The power generation efficiency is highest when the solar panel 10 is vertically arranged with respect to the sunlight. In the daytime, the position of the sun is tracked through the solar sensor 114 so that the upper surface of the solar panel 10 is sun- It is necessary to set it in the direction to which it is facing.

4 is a circuit diagram of a solar sensor according to an embodiment of the present invention.

Referring to FIG. 4, the solar sensor is connected in parallel with four CDS sensors 150a to 150d (hereinafter may be collectively referred to as '150') between a power source Vcc and a ground GND. Resistors 160a to 160d are connected in series to the respective CDS sensors 150a to 150d.

The CDS sensor 150 itself has a property that its own resistance decreases with respect to light according to the amount of received light, and its resistance increases when the light is weak. When the light is detected, the resistance of the CDS sensor 150 is reduced and the voltage drop is also reduced. Accordingly, by comparing the voltage measurement values at the voltage measurement points (A, B, C, and D in FIG. 4), it is possible to grasp the amount of light received by each CDS sensor 150.

And controls the upper motor 23 and the lower motor 35 based on the voltage measurement value of the voltage measurement point. That is, this voltage is comparatively measured and transmitted to, for example, the ADC input port of the ATmega 128, and converted into 4-bit information, and the rotation angle of the solar panel 10 controlled by the DC motor Angle) and the inclination angle (the rotation angle around the horizontal axis A2) can be controlled.

5A is a perspective view of a solar photodiode according to an embodiment of the present invention, FIG. 5B is a top view of the solar photodetector shown in FIG. 5A, and FIG. 5C is a cross- Sectional view.

5A to 5C, the solar panel 10, the sensor screening unit 200, and the CDS sensors 150n, 150s, 150w and 150e are shown. Here, the four CDS sensors 150n, 150s, 150w, and 150e are arranged in north, south, west, and east respectively, and correspond to the four CDS sensors 150a, 150b, 150c, and 150d shown in FIG. 4 .

The sensor screening part 200 is a structure of a predetermined height having a ten-sided cross section, and CDS sensors 150n, 150s, 150w, and 150e are disposed in four spaces separated by a cruciform structure.

Shadows can be created in the space between the sensor shielding portions 200 according to the position of the sun. As shown in FIG. 5C, when a shadow is formed on the CDS sensor W 150w (corresponding to 150c in FIG. 4) positioned on the left side by the sensor intercepting unit 200 when the sunlight is reflected, the resistance increases, The resistance value becomes larger than that of the CDS sensor E 150e (corresponding to 150d in Fig. 4). Therefore, in FIG. 4, the voltage at the point C becomes higher than the voltage at the point D. With this voltage difference signal, the lower motor 35 turns on the bright side on the vertical axis A1, that is, the voltage drop of the CDS sensor is reduced to a smaller value, and the turning angle is controlled until the voltage at point C becomes equal to the voltage at point D

In the same principle, the CDS sensor N 150n (corresponding to 150b in FIG. 4) and the S 150s (corresponding to 150d in FIG. 4) , The self resistance value of the CDS sensor N (150n) and the S (150s) changes, and a difference in the voltage drop (point A, point B in FIG. 4) occurs. The voltage difference between these two points is measured, and the upper motor 23 is controlled to rotate on the horizontal axis A2 to control the inclination angle until the voltages at points A and B are equal to each other.

If the voltage drop by the CDS sensor is the same and the output voltage values at all four points are all the same, the CDS sensor receives the same amount of solar light, which means that the center plane of the sensor is always facing the sun.

The (+) red of the circuit tester is connected to the measurement points (A, B, C, D) and the (-) and the black are connected to COM to measure the DC voltage.

In other words, the lower motor rotates on the A1 axis by the CDS sensors E and W, and the sunlight is traced while turning at the same time, and the upper motor is rotated on the A2 axis by the CDS sensors N and S to move the solar panel up and down The inclination angle is controlled.

6 is a view showing a solar light sensor according to another embodiment of the present invention. FIG. 7A is a view showing an example of the solar tracking principle using the solar light sensor of FIG. 6, and FIG. Lt; RTI ID = 0.0 > example. ≪ / RTI >

Referring to FIG. 6, the solar sensor 114 according to one embodiment may have a structure in which four CDS sensors 250a to 250d are arranged in a ten-figure shape.

In this case, the resistance value of the CDS sensors 250a to 250d depending on the position is detected by using the principle that the free electrons are increased in the sensor on the side where the light is frequently emitted and the resistance value is lowered. Thereafter, the position of the lowest resistance value is determined as the lightest side, and the two-axis structure DC motor (the upper motor 23 and the lower motor 35) is driven so that the solar panel 10 is rotated in the optimal direction .

If the sun 1 is located as shown in FIG. 6, the resistance values of the four CDS sensors 250a to 250d have the following relationship.

Ra <Rb <Rd <Rc

In this case, an example of an algorithm for tracking the sun position will be described with reference to FIG. 7A.

The resistance values of two neighboring CDS sensors 250a, 250b, 250c and 250d located in the same area among the areas divided on the horizontal axis A2 'are compared. When the difference is greater than the error range, So that the difference in resistance value between the two neighboring CDS sensors 250a and 250b, 250c and 250d is within an error range. That is, substantially Ra = Rb and Rc = Rd. As shown in FIG. 7A, the sun 1 may be positioned between two neighboring CDS sensors 250a and 250b, 250c and 250d by rotating clockwise as viewed in the drawing (see (1)).

In this case, the resistance values between the CDS sensors 250a and 250b near the sun 1 and the CDS sensors 250c and 250d far from the sun 1 have the following relationship.

Ra (= Rb) < Rc (= Rd)

Accordingly, by driving the upper motor 23 so that the portion where the CDS sensor 250a having a low resistance value is positioned around the horizontal axis A2 'is rotated, the solar panel 10 is rotated (see 2) The CDS sensors 250a and 250b which are close to the sun 1 and the CDS sensors 250c and 250d which are far from the sun 1 are close to each other to satisfy the relationship of Ra = Rb = Rc = Rd, 10 can be placed perpendicular to the sunlight.

Another example of an algorithm for tracking the sun position will be described with reference to FIG. 7B.

In this case, the resistance values of the two CDS sensors 250b and 250d placed on the horizontal axis A2 '' are compared, and when the difference exceeds the error range, the lower motor 35 is driven to rotate the solar panel 10 horizontally So that the difference between the resistance values of the two CDS sensors 250b and 250d facing each other is within an error range. That is, substantially Rb = Rd. 7B, the position of the sun 1 may lie on the extension of the two CDS sensors 250a and 250d placed orthogonally to the horizontal axis A2 '' (see FIG. 7B) by rotating counterclockwise ③).

In this case, the resistance values of the two CDS sensors 250a and 250d perpendicular to the horizontal axis A2 '' have the same relationship as Ra < Rd. Since Ra is small, it can be determined that the sun is on the CDS sensor 250a side.

Accordingly, by driving the upper motor 23 so that the portion where the CDS sensor 250a having a low resistance value is positioned around the horizontal axis A2 '' is lowered, the solar panel 10 is rotated The CDS sensor 250a nearer to the solar cell 1 is closer to the CDS sensor 250d farther away from the solar cell 1 so that the relation of Ra = Rd is satisfied, So that it can be placed vertically.

6 to 7B, the CDS sensors 250a to 250d are shown to have a rod shape having a long length, but this is merely an example, and the CDS sensors 250a to 250d are spaced equally spaced from each other at the center of the solar panel 10, It may have the same various shapes as each other.

8 is a view showing a solar light sensor according to another embodiment of the present invention.

8, the solar sensor 114 includes a CDS sensor 260 arranged in a circular shape on the upper surface of the solar panel 10, and a sensing bar 270 disposed on the center of the circle, And is vertically installed.

The sensing bar 270 makes a shadow 275 according to the position of the sun 1 and the shadow 275 of the sensing bar 270 is formed opposite to the position of the sun 1.

Using this shadow generation principle, the position of the shadow 275 is determined according to the measured value of the CDS sensor 260, and the lower motor 35 is positioned so that the horizontal axis A2 ''' And rotates the solar panel 10 horizontally. Thereafter, the upper motor 23 is driven to rotate the solar panel 10 along the horizontal axis A2 '''so that the shadows 275 become smaller, so that the solar panel 10 faces the sun 1 As shown in FIG.

Referring again to Fig. 1, the electric energy generated by the portable photovoltaic apparatus 112 in this embodiment can be charged into a battery (not shown) directly connected to the outside. The battery may be one of a lead-acid battery, a nickel-cadmium battery, and a lithium polymer battery.

The solar power generation unit 110 may further include an emergency test switch 118. The emergency test switch 118 is connected to the solar sensor 114 for adjustment or testing of the portable photovoltaic power generator 112 so that an emergency test can proceed.

The monitoring unit 120 communicates with the solar power generating unit 110 via the UART communication port 122 and may monitor the power generation state of the solar power generating unit 110 and output the monitoring result through the output unit 124 .

The output unit 124 may be, for example, a display, and can display information on the power generation status, the battery storage capacity, the sun position, and the like.

The monitoring unit 120 may include a limit switch 126 and a push switch 128.

The sun has a trajectory rising from the east and going west, and its angle is less than 180 ~ 270 degrees (˚). In addition, the height of sun (latitude) changes in winter and summer. The inclination angle of the solar panel 10 is adjusted to the earth's latitude.

When the solar panel 10 turns or rotates more than 360 degrees (?) On the system, the lines (signal lines, power lines, power lines, etc.) become entangled and the equipment may become unstable. Therefore, it is necessary to set the rotation angle of the vertical axis A1 to 0 to 270 degrees (°) and the rotation angle of the horizontal axis (A2) to 0 to 90 degrees () in the solar panel 10, The limit switch 126 and the push switch 128 are used.

The limit switch 126 controls the operation of the latching jaws spaced apart by a predetermined angle around the upper motor 23 to limit the inclination angle of the sunlight plate 10 so that when the sunlight plate 10 exceeds a predetermined inclination angle, So that it can no longer be rotated.

The push switch 128 controls the operation of the latching jaw provided around the lower motor 35 at a predetermined angle to limit horizontal rotation of the sunroof 10 so that the rotation of the lower motor 35 on the vertical axis A1 The total amount can be limited.

The power supply unit 130 supplies power for allowing the monitoring unit 120 and / or the solar power generation unit 110 to operate.

The operation of the power supply unit 130 may be controlled by the external control unit 140.

The control unit 140 includes a voltage sensor 142 and a current sensor 144 to check the generation voltage and generation current of the solar power generation unit 110. Also, check the voltage and current consumed by the battery to monitor the battery condition. For this purpose, two voltage sensors 142 and current sensors 144 may be provided, respectively.

The control unit 140 determines that the solar power generation is not smooth when the generated voltage and the generated current measured by the voltage sensor 142 and the current sensor 144 connected to the solar power generating unit 110 are less than a preset threshold value The monitoring unit 120, and the solar power generation unit 110. The power control unit 130 controls the power supply unit 130 to turn off the power.

Power consumption can be minimized by turning off power supply to at least one of the monitoring unit 120 and the solar power generation unit 110 in the power supply unit 130. The standby power at the monitoring unit 120 and / or the solar power generation unit 110, which is turned off, becomes zero.

If it is determined that the generation voltage and the generated current are equal to or more than the threshold value and the photovoltaic power generation can be smoothly performed, the monitoring unit 120 and the photovoltaic generation unit 110 The power can be turned on.

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: Portable solar power generation system 110: Solar power generation part
112: Portable solar power generator 114: Solar light sensor
116: Motor control unit 118: Emergency test switch
120: monitoring unit 122: communication port
124: Output section 126: Limit switch
128: Push switch 130: Power source
140: Control section 142: Voltage sensor
144: Current sensor

Claims (8)

delete A solar panel having at least one solar cell module mounted on an upper surface thereof;
An upper motor device for driving the upper motor while rotating the solar panel to rotate the solar panel about a horizontal axis parallel to the ground surface;
A lower motor device for supporting the upper motor device and driving the lower motor to rotate the upper motor device about a vertical axis perpendicular to the ground surface; And
And a system pedestal supporting the lower motor device,
The solar panel, the upper motor unit, the lower motor unit, and the pedestal are separately assembled in four assemblies, assembled in a finished form on site,
A solar sensor to track the position of the sun; And
Further comprising a motor control unit for controlling rotation of the upper motor and the lower motor according to a measured value of the solar sensor,
The solar sensor includes four CDS sensors arranged in a ten-
The motor control unit compares the resistance values of two adjacent CDS sensors located in the same area among the areas divided on the horizontal axis and drives the lower motor when the difference is greater than the error range, And the upper solar motor is driven to rotate the solar panel so that a region where the CDS sensor having a low resistance value is positioned lower is centered on the horizontal axis,
A limit switch for controlling an amount of rotation of the upper motor by controlling an operation of a first latching jaw provided at a predetermined angle around the upper motor to limit an inclination angle of the sunlight plate; And
Further comprising a push switch for limiting an amount of rotation of the lower motor by controlling an operation of a second latching jaw provided at a predetermined angle around the lower motor to limit horizontal rotation of the sunlight plate Photovoltaic device.
3. The method of claim 2,
The rotation axis of the upper motor is placed parallel to the ground surface,
The upper motor device includes a solar panel support including an upper support plate for supporting the solar panel and a lower body having a first engagement hole coupled to a rotation shaft of the upper motor; The upper motor device includes an upper motor holder including a vertical fixing part formed with a first body insertion hole into which the body of the upper motor is inserted and a horizontal fixing part fixed by a lower upper motor supporting part,
The rotation axis of the lower motor is placed perpendicular to the ground surface,
The lower motor device includes an upper motor support coupled to the upper motor holder and having a second engaging hole for engaging the upper motor device and the lower motor device and coupled to a rotary shaft of the lower motor; A lower motor holder for holding the lower motor through a second body insertion hole; A lower motor support which is a pipe structure for supporting the lower motor; And a system pedestal holder for supporting the portable photovoltaic power generation system as a whole by fitting the lower motor supporter to the upper portion and fitting the system pedestal to the lower portion at a predetermined inclination. .
The portable photovoltaic device according to any one of claims 2 to 3;
A monitoring unit monitoring the power generation status of the portable solar power generation device and outputting the power generation status so that the status can be confirmed from the outside;
A power supply unit for controlling power of the portable solar power generation device and the monitoring unit; And
Wherein the monitoring unit turns off at least one of the portable solar power generation devices when the generation voltage and the generation current of the portable solar power generation device are measured to be less than a preset threshold value, And a controller for controlling the power unit to turn on the power of the monitoring unit and the portable photovoltaic device when the temperature exceeds the threshold value.
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