KR101745941B1 - Stand-alone photovoltaic apparatus - Google Patents

Abstract

The present invention relates to a stand-alone photovoltaic power generation apparatus. According to the present invention, there is provided a solar cell module comprising: a main body box having a plurality of receiving grooves formed on a plurality of side walls; a first solar cell module mounted on the top surface of the main body box so as to be tiltable; A solar cell module comprising: a plurality of second solar cell modules including a carrier frame and a solar cell plate tiltingly coupled inside the carrier frame; and a plurality of second solar cell modules connected between the carrier frame and the solar cell plate, And a plurality of solar control units mounted on the top of the solar panel and measuring a solar radiation size corresponding to the tilting angle, Of the plurality of candidate tilting angles adjustable by the tilting angle There is provided a stand-alone solar power generation device.
According to the present invention, since the inclination angle of the solar cell module can be controlled based on the solar radiation according to the solar altitude observed from the solar cell sensor, the power generation efficiency can be enhanced, and the solar cell modules of various stages can be stored and withdrawn So that it is possible to maximize the space utilization, easy to move and store, and simple installation.

Description

[0001] Stand-alone photovoltaic apparatus [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a stand-alone solar power generation apparatus, and more particularly, to a stand-alone solar power generation apparatus that can be independently operated and can increase power generation efficiency.

Generally, solar power generation systems are divided into independent type and grid type. The grid-connected photovoltaic power generation system has a form capable of accepting or sending electricity through a power distribution line of grid electricity. The stand-alone photovoltaic power generation system has an advantage of self-power generation which is operated independently and not connected with power distribution lines, and is simple in construction and low in cost.

The stand-alone solar photovoltaic system can be used not only as an emergency residence in grid-connected areas such as desert, large-scale farms and ranches but also in unmanned systems such as communication base stations, military operations and surveillance camera systems have.

Conventional stand-alone photovoltaic power generation systems have a structure in which a plurality of solar cell modules are arranged in an array on a roof slope at the top of a residential container house. Here, the power generated by each solar cell module is processed in the power room inside the container house and supplied to various electronic devices in the living room, which is a residence space.

However, since such a conventional stand-alone system is manufactured in an integrated form on the container house, it is difficult to separate the system into individual modules or to apply them to other container houses or other facilities, and since the installation angle to each of the solar battery modules is fixed, It is impossible to control the inclination angle according to the altitude of the vehicle.

The technology of the background of the present invention is disclosed in Korean Patent No. 1383889 (published on Apr. 14, 2014).

An object of the present invention is to provide a stand-alone photovoltaic power generation device capable of adjusting the tilting angle of a solar panel and enhancing power production efficiency.

According to the present invention, there is provided a solar cell module comprising: a main body box having a receiving groove formed on a plurality of side walls; a first solar cell module mounted on the top surface of the main body box so as to be tiltable; A plurality of second solar cell modules including a frame and a solar cell plate tilted so as to be tiltable inside the carrier frame; and a plurality of second solar cell modules connected between the carrier frame and the solar cell plate, And a plurality of solar irradiators each mounted on the solar cell plate for measuring a solar radiation size corresponding to the tilting angle, The maximum solar radiation size among a plurality of candidate tilting angles adjustable by the tilting angle is set to the measured tilting angle Provides a stand-alone photovoltaic power generation device.

Here, the solar radiation measurement unit may be constituted by a solar radiation sensor that senses a solar radiation amount at an upper portion of the solar panel, or a sun inclination azimuth system that measures solar radiation size using a shadow length of a rod disposed on a disk.

In addition, the independent photovoltaic power generation device may further include a solar cell module that extends from the solar cell plate toward the inside of the storage groove to transmit power produced by the solar cell plate to the outside, A first and a second electric wire fixed in a spaced apart state and a pair of first tube portions located in the inside of the receiving groove and spaced apart from each other and passing through the first electric wire in the longitudinal direction, And a pair of second tube portions spaced apart from each other and passing through the first tube portion.

When the second solar cell module is accommodated in the accommodating groove, the central portion of the first electric wire exposed between the pair of first tube portions and the second electric wire exposed between the pair of second tube portions, When the second solar cell module is completely housed, the first electric wire and the second electric wire are bent in a U-shape opposite to each other and the first and second electric wires are bent, And the longitudinal direction of the second tube portion can be aligned parallel to the width direction of the receiving groove.

The angle control unit may include a first control motor connected to a tilting axis between the carrier frame and the solar panel. The solar control unit is a first solar sensor for sensing a solar radiation amount at an upper portion of the solar panel, The photovoltaic power generation apparatus sequentially collects solar radiation amounts from the first solar radiation sensor while sequentially transmitting control signals corresponding to the plurality of candidate tilting angles to the first control motor and then calculates a solar radiation amount corresponding to a tilting angle at which the maximum solar radiation amount is derived And finally setting the control signal to the first control motor.

Also, the first solar cell module has a second solar radiation sensor for sensing a solar radiation amount on its upper surface, and the other end is coupled to the upper portion of the main body box by a pivot shaft so that one end of the second sun sensor is rotatable about the other end , A second control motor is connected to the pivot shaft, and the control unit transmits a control signal for controlling the inclination angle of the first solar cell module to the second control motor while collecting the solar radiation amount from the second solar sensor , A control signal corresponding to the inclination angle derived from the maximum irradiation amount can be finally set in the second control motor.

Also, the carrier frame is a 'C' -shaped frame in which both ends of the second frame and the third frame are coupled to both ends of the first frame, And a tilting axis is formed between the other end of the second and third frames and the solar panel, and may be formed at a position eccentric to the center of gravity of the solar panel.

The angle adjusting unit may include first and second frames, one end of each of which is rotatably coupled to both sides of one side of the solar panel, and the other end of the first and second frames, And a third frame slidably coupled on the rail groove formed in the longitudinal direction along the second and third frames, wherein the inclination angle of the solar panel can be adjusted when the both ends are slidingly moved.

Here, the solar panel has a first inclination angle in a state in which the longitudinal direction of the first and second frames is erected, and when the both ends slide in one direction or the other direction in the upright state, Is lower than the first inclination angle, and when both end portions slide in the other direction in the upright state to become a horizontal state, the solar panel can be maintained in a horizontal state.

Further, the angle adjusting portion may be formed such that one end thereof is connected to the first frame and the other end extends along the longitudinal direction of the second and third frames to be fixed to a part of the second and third frames, An auxiliary frame having a plurality of locking portions formed at regular intervals on the upper surface thereof and one end portion of each of the first and second frames being rotatably coupled to both sides of a part of the solar panel, And a control frame connected to the third frame via the third frame and adjusting the inclination angle of the solar panel in a manner that the third frame is hooked to one of the engaging portions.

Here, the pivot shafts between the one end of the first and second frames and the solar cell plate are movable right and left in the elongated holes formed on both sides of a part of the solar panel, respectively, and the pivot shaft is connected to the first side The third frame is detached from the inner frame when the pivot shaft is located on the second side of the hole, and the third frame is separated from the inner frame when the pivot shaft is located on the second side of the hole, The inclination angle can be adjusted.

The stand-alone solar power generation apparatus may further include a battery charger for optimizing and providing direct current power produced by the first and second solar battery modules, a battery for charging the direct current power from the battery charger, And an inverter that converts the direct current power into alternating current power and supplies the alternating current power to the load of the installation object.

The power module may further include a power module box coupled to a lower portion of the main body box and fixing the main body box to a roof of the installation object. The battery charger, the battery, and the inverter may be mounted on the power module box, respectively .

Also, the power module box may be configured such that a top surface of the power module box is cut at a predetermined inclination angle so that the tilting control of the main body box rotatably placed on the top can be performed, 1 control means for collecting the solar radiation amount of the solar radiation sensor mounted on the solar cell module of the solar battery module and setting the rotation angle of the main body box at an angle derived from the maximum solar radiation amount.

In addition, a pivot axis between the power module box and the main body box may be formed at a position eccentric from the center of gravity of the main body box by a predetermined distance.

In addition, the second solar cell module is implemented as a pair including upper and lower solar cell modules, wherein one side of each carrier frame of the pair of solar cell modules is hingedly connected to each other, The lower solar cell module is stacked up and down, and at the time of withdrawing, the upper solar cell module can be unfolded with respect to the lower solar cell module.

Further, the receiving grooves are formed at different heights with respect to the four side walls of the main body box having a hexahedron shape, and the upper solar cell modules are arranged in four different directions along the periphery of the four side walls, 2 hinge connection portions of the two solar cell modules are formed separately on one side of four sides of the carrier frame, and the entire outer peripheral portion of the four opened second solar cell modules may have a single rectangular shape .

According to the independent photovoltaic power generation apparatus according to the present invention, since the inclination angle of the solar cell module can be controlled based on the solar radiation amount according to the sun altitude observed from the solar radiation sensor, the power generation efficiency can be enhanced, It is possible to maximize the space utilization, to easily move and store, and to have a simple installation.

FIG. 1 is a view illustrating a stand-alone photovoltaic power generation apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing a state in which a second solar cell module housed in a side surface of the main body box is taken out in FIG. 1;
3 is a view for explaining a sun inclination azimuth system for manually measuring the solar radiation size in the embodiment of the present invention.
4 is a view illustrating a configuration of a second solar cell module according to an embodiment of the present invention.
5 is a view showing a configuration for adjusting the inclination angle of the first solar cell module in the embodiment of the present invention.
6 is a view illustrating an example of a manual angle adjustment configuration of a second solar cell module in an embodiment of the present invention.
Fig. 7 is a diagram showing the operation principle of Fig. 6. Fig.
8 is a view showing another example of a manual angle adjustment structure of the second solar cell module in the embodiment of the present invention.
9 and 10 are views showing the operation principle of FIG.
11 is a view showing a configuration of a wire twist preventing part in an embodiment of the present invention.
12 is a view illustrating a power conversion unit connected to a stand-alone photovoltaic power generation apparatus according to an embodiment of the present invention.
13 is a view showing a modified example of the independent photovoltaic generator shown in Fig.
Figs. 14 and 15 are views showing the drawn state and the unfolded state of the second solar cell module housed in Fig. 13, respectively.
FIG. 16 is a view showing a state in which the stand-alone photovoltaic power generator shown in FIG. 13 is mounted on the top of the power module box.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention relates to a stand-alone photovoltaic power generation apparatus, which provides a stand-alone photovoltaic system that is simpler to install than conventional ones, can increase power generation efficiency, and can maximize space utilization. The embodiment of the present invention has a structure in which solar cells of various stages can be stored and taken out freely with respect to the main body box and can be easily moved and stored at the time of storage.

Such an embodiment of the present invention can be used as a power supply source of a mobile station such as a communication base station, various systems, and a vehicle as well as an emergency home in an area where a grid electricity is not connected or a disaster area.

Hereinafter, the configuration of a stand-alone solar cell generator according to an embodiment of the present invention will be described in detail.

FIG. 1 is a view illustrating a stand-alone photovoltaic power generation apparatus according to an embodiment of the present invention. FIG. 1 illustrates the stand-alone photovoltaic device 100 installed on the roof of a container house 10 such as an emergency house for convenience of explanation. Of course, the application examples of the present invention are not limited thereto.

First, the structure of the container house 10 will be briefly described. The container house 10 is divided into an electric room 11 (power room) and a living room 12 (living room). The electric space 11 receives the electric power generated from the independent photovoltaic power generation apparatus 100 through a cable and converts it into a form of electric power that can be supplied to a load in the living space 12. [

The electric space 11 has a structure including a battery charger, a battery, and an inverter. The battery charger optimizes the electric power generated by the independent photovoltaic power generation apparatus 100 to charge the battery, and the inverter converts the DC power charged in the battery into AC power and provides the AC power.

The living space 12 is used for residential use, and loads such as various electronic devices exist. The various loads in the living space 12 are operated by receiving the converted electric power from the inverter in the electric space 11.

The stand-alone photovoltaic power generation apparatus 100 may be separately transported and assembled onto the roof of the container house 10, and may be transported to a desired location together with the container house 10 in a pre-assembled state. Of course, since the stand-alone PV system 100 and the container house 10 can be assembled by being transported to separate vehicles, they can be installed quickly and conveniently in a desired place. The size of the container house 10 can be an ISO standard, but other sizes can be used.

Next, the configuration of the independent photovoltaic device 100 will be described in detail. The independent photovoltaic power generation apparatus 100 includes a main body box 110, a first solar cell module 120, a plurality of second solar cell modules 130, and solar radiation measurement units 140 and 150.

A first solar cell module 120 is mounted on the upper surface of the main body box 110 and a second solar cell module 130 is mounted on the plurality of side surfaces of the main box 110 so as to be slidably received and withdrawn. On the respective side walls of the main body box 110, the receiving grooves 111 are formed at different heights. Accordingly, the plurality of second solar cell modules 130 can be housed in the body box 110 at different heights.

Also, the second solar cell module 130 can be realized as a conventional drawer. For example, the outer frame of the second solar cell module 130, that is, both edge portions of the carrier frame are provided with rollers, and the rollers are slidably moved along both rails in the receiving groove 111 .

FIG. 2 is a view showing a state in which a second solar cell module housed in a side surface of the main body box is taken out in FIG. 1; The inside of the main body box 110 is composed of several stages. (Level 1) to the fourth stage (level 4) of the lower part corresponds to the second solar cell module 130 capable of sliding reception, and the uppermost five stages (level 5) Represents a portion corresponding to the module 120. Fig.

Here, the arrangement and size of the second solar cell module 130 and the shape of the main body box 110 are not limited to those shown in FIG. 1 illustrates that the main body box 110 has a rectangular parallelepiped shape and four second solar cell modules 130 corresponding thereto can be accommodated in the side surface of the main body box 110. [

If the length of the two second solar cell modules (ex (first stage and second stage) facing each other with respect to the main body box 110 in FIG. 1 is reduced to half or less, It is possible to change it to a possible structure. That is, the embodiment of the present invention can be modified into a form in which solar cells of different stages share the same level (layer).

In the case of FIGS. 1 and 2, for convenience of explanation, the configuration of each solar cell module is shown in block form in a relatively simple manner, and each of the solar cell modules includes a structure that facilitates coupling to the main body box .

The first solar cell module 120 may be fixedly mounted on the top surface of the main body box 110 or may be formed in an inclined shape. The second solar cell module 130 can be realized in a form in which the solar cell plate inside the outer frame can be tilted in a state in which the outer frame is slid out to the outside of the main body box 110. [ The shape of the solar panel constituting the first solar cell module 120 and the second solar cell module 130 may be such that a plurality of battery cells are arrayed on a plane.

And solar radiation measurement units 140 and 150 for measuring a solar radiation amount are mounted on the upper portions of the first and second solar cell modules 120 and 130, respectively. When the solar radiation measurement section is used, the tilting angle of the solar panel can be set at an angle at which the maximum solar radiation amount is measured. In this case, if the first solar cell module 120 is installed in a planar shape rather than a pivot type, the first solar cell module 120 may not require the solar radiation sensor part 140.

The solar radiation measurement units 140 and 150 may be configured with a solar radiation sensor that automatically senses the solar radiation amount from the upper part of the solar panel. In addition, the solar radiation measurement units 140 and 150 may be configured as a sun inclination azimuth system that manually measures the solar radiation size using the shadow length of the rod disposed on the disk.

3 is a view for explaining a sun inclination azimuth system for manually measuring the solar radiation size in the embodiment of the present invention. Fig. 3 shows a state in which the shadow length of the rod is observed in a state where a disk-shaped sun inclination azimuth system is placed on the top of the solar panel.

If the shadow does not appear on the original plate, it means that the inclination angle and azimuth angle of the current solar panel are set to an angle that derives the maximum solar irradiance. Therefore, it is necessary to adjust the angle of the solar panel until the shadow disappears by placing the solar oblique azimuth meter on the solar panel. When the adjustment is completed, the solar oblique azimuth meter is removed to prevent the shadow from appearing on the solar panel.

4 is a view illustrating a configuration of a second solar cell module according to an embodiment of the present invention. The second solar cell module 130 has a structure including a carrier frame 131 for carrying out storage and retrieval functions and a solar cell plate 132 coupled inside the carrier frame 131 in a tilting manner. Here, in the case of FIG. 4, for convenience of description, the carrier frame 131 is illustrated as being in the form of a letter, and the present invention is not necessarily limited thereto. That is, the carrier frame 131 may be implemented in a 'C' shape in which one side is opened as in the later FIG. 6, etc. so that the shadow of the carrier frame 131 does not occur when the solar panel 132 tilts have.

In the embodiment of the present invention, the solar panel 132 may be set to a tilting angle at which a maximum solar radiation size (solar radiation amount) is measured among a plurality of candidate tilting angles adjustable by a separate angle adjusting unit. Hereinafter, for convenience of explanation, an example using a solar radiation sensor capable of automatic measurement of irradiation dose will be described as an example.

In the embodiment of the present invention, as shown in FIG. 4, the angle adjusting unit may use an automatic adjusting method using the control unit 170 and the control motor 165, Manual adjustment can be used. Of course, the embodiment of the present invention may use either a manual or an automatic method, if necessary, or may be used in combination.

First, the automatic adjustment method shown in FIG. 4 will be described as follows. The first control motor 165 is connected to the tilting shaft 133 between the carrier frame 131 and the solar panel 132. Here, the tilting axis 133 is eccentric from the center of gravity of the solar panel 132 to prevent the solar panel 132 from being inverted when the inclination of the solar panel 132 increases.

The control unit 170 may transmit a control signal for controlling the tilting angle to the first control motor 165 to adjust the tilting angle of the solar panel 132 with respect to the carrier frame 131. [ The first control motor 165 can generate a rotational force corresponding to the control signal to control the tilting angle of the solar panel 132. [

Here, the control unit 170 sequentially transmits the control signals corresponding to the plurality of candidate tilting angles to the first control motor 165, sequentially collecting the solar radiation amount from the solar radiation sensor 150, and extracting the maximum solar radiation amount among the collected solar radiation amounts And finally sets the control signal corresponding to the tilting angle (optimum tilting angle) to the first control motor 165. Through this method, the solar panel 132 of the second solar cell module 130 can be set at an optimal tilting angle.

In such an automatic adjustment method, a tilting angle of the solar panel 131 may be individually adjusted by transmitting a control signal to each of the second solar cell modules 130.

Of course, the embodiment of the present invention can be realized in a form in which the inclination angle of the first solar cell module 120 can also be adjusted. 5 is a view showing a configuration for adjusting the inclination angle of the first solar cell module in the embodiment of the present invention.

As shown in FIG. 5A, the first solar cell module 120 has a structure in which one end portion is rotatable with respect to the other end portion. The upper surface of one end of the first solar cell module 120 is mounted with a solar radiation sensor 140 and the other end is coupled to the upper part of the main body box 110 by a pivot shaft 121. The pivot shaft 121 is connected to the second control motor 122. 5B, when the control unit 170 changes the tilt angle of the first solar cell module 120 from 0 DEG to 45 DEG using the second control motor 122, the tilt angle .

In this manner, the control unit 170 collects the solar radiation amount from the solar radiation sensor 140 while transferring the control signal for controlling the inclination angle of the first solar cell module 120 to the second control motor 122, And finally sets a control signal corresponding to the tilt angle to the second control motor 122. [ Accordingly, the first solar cell module 120 can be set to an optimum tilt angle at which the maximum irradiation dose can be derived.

In the case of FIG. 5, referring to FIGS. 6 to 10, the automatic adjustment method of the second solar cell module, or the manual adjustment method by the operator. Figs. 6 and 7 are the first examples, and Figs. 8 to 10 show the second example.

In the following Figs. 6 to 10, the carrier frame 131 will be explained by exemplifying a C shape. 6 is a view illustrating an example of a manual angle adjustment of a second solar cell module according to an embodiment of the present invention, and FIG. 7 is a diagram showing the operation principle of FIG.

6, the carrier frame 131 includes a first frame 131a and a second frame 131b. The carrier frame 131 includes a first frame 131a, a second frame 131b, and a third frame 131c. Lt; / RTI > The solar panel 132 is arranged to be able to tilt in the space between the second frame 131b and the third frame 131c.

The tilting shaft 133 is formed between the other end of the second and third frames 131b and 131c and the solar panel 132 so as to be eccentric by a certain distance from the center of gravity of the solar panel 132 . When the tilting shaft 133 is eccentric, the process of increasing the inclination of the solar panel 132 may be performed more stably than when the tilting shaft 133 is positioned at the center.

6, the angle adjusting unit 160 includes first to third frames 161, 162, and 163. One end of each of the first frame 161 and the second frame 162 is rotatably coupled to both sides of one side (left end) of the solar panel 132. The third frame 163 is connected between the other ends of the first and second frames 161 and 163 and has a rail groove h formed at its both ends in the longitudinal direction along the second and third frames 131b and 131c As shown in Fig.

6, when both ends of the third frame 163 are slidably moved on the respective rail grooves h of the second and third frames 131b and 131c, the inclination angle of the solar panel 132 . Both end portions of the third frame 163 can be realized as one rotatable block on the rail groove b so as to facilitate sliding movement. To this end, both ends of the third frame 163 may be rotatably coupled on the other ends of the first and second frames 161, 162. Further, if the auxiliary grooves or the auxiliary protrusions are formed on the rail groove b at regular intervals along the longitudinal direction, both ends of the third frame 163 can be hooked at arbitrary positions, so that the inclination angle of the solar panel 132 is stable ≪ / RTI >

The operation of FIG. 6 will be described with reference to FIG. Referring to FIG. 7C, the solar panel 132 has a first inclination angle (ex, 45 DEG) in a state where the longitudinal direction of the first and second frames 161 and 162 is erected. In this upright state, the inclination angle of the solar panel 132 becomes lower than the first inclination angle when the both ends slide in one direction (left side) or the other side (right direction). 7 (a) shows that the both ends of the third frame 163 are moved to the left in the state of FIG. 7 (c), and the inclination angle is adjusted to 30 degrees. 7B shows a case in which both ends of the third frame 163 are fully slid in the right direction to adjust the first and second frames 161 and 162 to be horizontal. In this case, Lt; / RTI >

Next, FIG. 8 is a view showing another example of the manual angle adjustment of the second solar cell module in the embodiment of the present invention, and FIGS. 9 and 10 are views showing the operation principle of FIG. Since the coupling between the carrier frame 131 and the solar panel 132 is the same as that shown in FIG. 6, detailed description is omitted. In FIGS. 8 and 10, the upper side corresponds to the side sectional view and the lower side corresponds to the drawing viewed from the rear side.

Referring to FIG. 8, the angle adjusting unit 160a includes an auxiliary frame 166 and an adjusting frame 167. As shown in FIG. One end of the auxiliary frame 166 is connected to the first frame 131a and the other end of the auxiliary frame 166 extending from the first end is fixed to a part of the second and third frames 131b and 131c, A plurality of engagement portions t are formed at intervals. The engaging portion (t) can be formed by a serrated projecting structure or other groove structure.

The adjustment frame 167 includes first to third frames 167a, 167b, and 167c. One end of each of the first and second frames 167a and 167b is rotatably coupled to both sides of a part of the solar panel 132 and the other end is connected to the third frame 167c. 8, the inclination angle of the solar panel 132 can be adjusted in such a manner that the third frame 167c is hooked to one of the plurality of engagement portions t at the time of rotation.

FIG. 9 is a diagram illustrating a manner of operation of the adjustment frame shown in FIG. Fig. 10 is a view corresponding to the state of Fig. 9 (b).

9, each pivotal axis between one end of the first and second frames 167a and 167b and the solar panel 132 is formed into a long hole 132a formed on both sides of a part of the solar panel 132, And is movable in the left and right direction.

When the pivot shaft is located on the first side (left side) of the hole 132a as shown in Figs. 9A and 10, the third frame 167c is disposed on one side of the solar panel 132 And is stably embedded in the inner space 132b formed at the end of the inner space 132b. In this case, the angle adjustment of the solar panel 132 is blocked and the second solar cell module 130 can be stably stored and stored in the main body box 110. It can be seen that the inner home frame 132b has a U-shaped vertical cross section, which is generally due to the fact that the four corners of the rear face of the crystal PV module are C-shaped aluminum frames.

9 (b), when the pivot shaft is located on the second side (right side) of the hole 132a, the third frame 167c can be separated from the restraint in the inner home frame 132b So that the inclination angle of the solar panel 132 can be adjusted. Here, for convenience of operation, holes may be formed deeper and larger only in the first side and the second side portion with respect to the longitudinal direction of the elongated hole 132a.

In the embodiment of the present invention as described above, the solar radiation amount is collected for each angle while adjusting each solar panel at various tilting angles, and the solar panel is finally set at a tilting angle at which the maximum solar radiation amount is derived to produce electric power. Such an operation can be repeatedly performed at the time of the preset period comes (ex, every one hour interval).

Of course, this principle can be equally applied to the manual adjustment method and the automatic adjustment method of the tilting angle. According to the above configuration, it is possible to optimize the inclination angle of the solar panel according to the sun altitude at that point of time, thereby increasing the incidence efficiency of sunlight and increasing the amount of power production.

Meanwhile, the embodiment of the present invention may include a structure for preventing internal wires that transmit power produced by the second solar cell module 130 from being twisted in the receiving space. 11 is a view showing a configuration of a wire twist preventing part in an embodiment of the present invention. In the case of FIG. 11, the carrier frame 131 has a rectangular shape for the sake of explanation.

11 (a) is a state in which the second solar cell module 130 is completely drawn out from the main body box 110, and FIG. 11 (b) . 11 (b) and 11 (c) are omitted for convenience of description and reference is made to FIG. 11 (a). 11, the configuration of the angle adjusting portion is omitted for convenience of explanation. The carrier supporter 161 and the angle adjuster 162 show a standby state folded at the lower portion of the solar panel 132 before the angle adjustment is performed.

A rail 113 is formed on both sides of the inner edge of the receiving groove 111 of the body box 110 and a roller 134 is provided on both sides of the edge of the carrier frame 131 of the second solar cell module 130 to correspond to the rail 113 have. Accordingly, the second solar cell module 130 can be stored and taken out by a method in which the roller 134 slides along the rails 113.

A locking device (groove or protrusion structure) may be formed on both ends of the rail 113 on the rail 113 to restrict the storage and extraction depths of the second solar cell module 130, respectively. In the case of the locking device formed at the inner end of the rail 113, it is possible to limit the depth to be stored and to limit the depth of the locking device formed at the outer end. Of course, this form corresponds to what is commonly applied to a general drawer structure.

11, the first electric line 181 and the second electric line 182 extend from the solar panel 132 toward the inside of the receiving groove 111 through a PV junction box, a PV connector or the like, And the elongated portions are fixed to each other in a state of being spaced apart from each other with respect to the width direction of the receiving groove 111.

The wire twist preventing portion includes a pair of first tube portions 181a and 181b and a pair of second tube portions 182a and 182b located inside the receiving groove 111. [ A pair of first tube portions 181a and 181b are spaced from each other and a first wire 181 penetrates in the longitudinal direction and a pair of second tube portions 182a and 182b are also spaced from each other and a second wire 182 ) Penetrate in the longitudinal direction.

The specific driving principle of the wire twist preventing portion is as follows. When the second solar cell module 130 is housed in the receiving groove 111 as shown in FIG. 11B, the first wire 181 exposed between the pair of first tube portions 181a and 181b A bending deformation is generated in the central portion of the second wire 182 exposed between the pair of second tube portions 182a and 182b and the bending angle gradually decreases.

When the second solar cell module 130 is completely housed as shown in FIG. 11C, the first electric wire 181 and the second electric wire 182 are bent in a U-shape opposite to each other, 181a and 181 and the second tube portions 182a and 182b are aligned in parallel with the width direction of the receiving groove 111. [ According to this structure, there is no problem of twisting the first and second wires 181 and 182 during the housing process of the second solar cell module 130.

12 is a view illustrating a power conversion unit connected to a stand-alone photovoltaic power generation apparatus according to an embodiment of the present invention. The power conversion unit 190 includes a battery charger 191, a battery 192, and an inverter 193.

The battery charger 191 receives and optimizes the direct current power produced by each solar panel of the first and second solar battery modules 120 and 130 through the first and second wires. To this end, the battery charger 191 may include a conventional maximum power point tracking (MPPT) control circuit, an overcharge protection circuit and an over discharge protection circuit.

The battery 192 receives the optimized DC power from the battery charger and charges the inverter 192. The inverter 193 converts the DC power charged in the battery 192 into AC power and supplies the AC power to the load of the installation object Supply. If the object to be installed is the container house 10 for emergency housing purposes as shown in Fig. 1, the power conversion section 190 can be installed in the electric space 11 in the container house 10. Fig.

In addition, when the object to be installed corresponds to a moving object such as a vehicle or a structure installed outdoors and requiring electric power, the power conversion section 190 can be mounted in a separate power module box.

The power module box is coupled to a lower portion of the main body box 110 through a coupling frame or the like to fix the main body box 110 on the roof of the installation object. Such a power module box can be implemented as a carriage type in which the independent photovoltaic power generation apparatus 100 is mounted, which will be described later.

Hereinafter, a modified example of the stand-alone photovoltaic generator according to the embodiment of the present invention will be described. FIG. 13 is a view showing a modified example of the independent photovoltaic power generating apparatus shown in FIG. 1, and FIGS. 14 and 15 are views showing a drawing state and a spreading state of the second solar cell module 230 housed in FIG. to be.

In this modification, the first solar cell module 220 is positioned at the upper end of the main body box 210 and the plurality of second solar cell modules 230 are accommodated at the side of the main box 210.

However, in the modification example, each of the second solar cell modules 230 is formed of two layers including the upper and lower solar cell modules 230a and 230b, and the second solar cell modules 230 can be expanded when extended.

For this purpose, the second solar cell module 230 is implemented as a pair including the upper and lower solar cell modules 230a and 230b, and the pair of solar cell modules 230a and 230b are connected to the respective carrier frames So that one side of the other is hinged to each other.

13, the upper and lower solar cell modules 230a and 230b are vertically stacked by hinges. In the extended state as shown in FIG. 14, the upper and lower solar cell modules 230a and 230b are stacked on the upper and lower solar cell modules 230a and 230b, So that it is possible to unfold the outer frame 230a.

Here, referring to FIG. 15, it can be seen that the entire outer peripheral portion of the four second solar cell modules 230 laid out has a single rectangular shape. As a matter of course, each of the hinge connection parts of the four second solar cell modules 230 may be separately formed on one side of four sides of the outer frame (carrier frame) as shown in FIG. Accordingly, the upper solar cell modules 230a can be unfolded in different directions (see arrows) along the four sidewalls of the main body box 210, respectively. 15, it can be seen that the unfolding direction forms a clockwise direction with respect to the main body box 210. [

Here, even if the shape of the carrier frame is 'C' shape, one side of the four sides is broken, but if the both ends of the 'C' are extended, a hinge connection part can be formed on the side surface.

With such a deployable structure, it is possible to maximize the amount of solar cell power generation in a short time. Also in this modified example, the solar cell module can be configured to be rotatable relative to the outer frame (carrier frame) of the second solar cell module 230. For this purpose, a solar radiation sensor may be separately mounted on each of the upper and lower solar cell modules 230a and 230b, and may be mounted on one of the solar cell modules 230a and 230b to share the maximum solar radiation inclination angle information.

Hereinafter, the power module box will be described in detail. The power module box may be mounted on both of the two types of the present invention (100, 200). For convenience of explanation, the device 200 of FIG. 13 is mounted on the top of the power module box.

FIG. 16 is a view showing a state in which the stand-alone photovoltaic power generator shown in FIG. 13 is mounted on the top of the power module box. As described above, the power module box 300 has a built-in configuration of the power conversion unit 190. Also, the device mounted on the power module box can be of any of the forms shown in FIGS. 1 and 13, and the form of FIG. 13 is illustrated for convenience of explanation.

Referring to FIG. 16, the power module box 300 can be manufactured as a wagon type having wheels 310 and a handle 320 so that the power can be transferred while the independent photovoltaic device 200 is mounted. The wheel 310 may be folded and may be concealed by a separate operation after the installation is completed.

Here, the direct current power generated from the independent photovoltaic power generating apparatus 200 is transferred to the power module box 300 and can be converted into alternating current power. The power module box 300 has a function of fixing the independent photovoltaic device 200 on the roof of the installation object ex (vehicle), and at the same time, a power conversion function is built in, and the converted AC power is supplied to the installation object ex To the load of the engine.

16A shows a state in which the independent photovoltaic device 200 is mounted on the top of the power module box 300 and FIG. 16B shows a state in which the second solar cell module 230 is drawn out .

In the power module box 300, a main body box 210 is rotatably coupled to an upper end of the power module box 300. In order to control the tilting of the main body box 210, a top surface 330 is cut at a predetermined angle.

FIG. 16 (c) shows a state in which the main body box 210 is inclined in the state of FIG. 16 (b). Here, the power module box 300 may include control means (not shown) for setting the rotation angle of the main body box.

The control means (not shown) controls the motor (not shown) that changes the rotation angle of the main body box 210 and adjusts the solar radiation amount of the solar radiation sensor 140 mounted on the upper part of the solar panel of the first solar battery module 220 The rotation angle of the main body box 210 can be set to an angle derived from the maximum irradiation amount after collection. The control means (not shown) may communicate with the control unit included in the solar power generation apparatus 200 for collecting solar radiation.

Thus, according to the configuration of FIG. 16, it is possible to maximize the amount of power generation by adjusting the angle of the entire solar cell generator 200 by checking the maximum solar irradiance inclination angle once per hour using the information of the solar radiation sensor. 16 does not need to individually adjust the inclination angles of the respective solar cell modules, and the inclination angle of the entire solar cell module can be adjusted simultaneously by rotating the main body box 210 itself using a motor. In addition to the operation of FIG. 16, the inclination angle adjusting function of the individual solar cell module may be additionally performed.

Here, the pivot shaft between the power module box 300 and the main body box 210 is formed at a position eccentric to the center of gravity of the main body box 210 by a predetermined distance. 16 (b), when the tilt angle is 0 degree (when the vehicle is moving after the vehicle is loaded), the tilting and swinging movements are prevented, and when the tilt angle is adjusted as shown in FIG. 16 (c) (During power generation), the power of the motor is reduced and the power consumption of the motor can be minimized.

According to the present invention, in a state in which the independent photovoltaic device is mounted on the wheeled carrier, each of the second solar cell modules on the side enters and leaves the main body box in a desk drawer sliding manner It is possible to maximize the space utilization.

In addition, when the second solar cell module completely enters the main body box, the second solar cell module is prevented from falling out during the vehicle movement through the locking device of the projecting or groove structure provided on the rail, And a lock mechanism for preventing the lock mechanism from being opened. Each solar cell module can adjust the tilt angle according to the altitude of the sun through the tilt angle control configuration, thus maximizing the power generation.

Since the main body box constituting the stand-alone PV system can be mounted on the roof of the vehicle, it can be mounted in various types such as a car, a truck, a bus, a specially equipped vehicle, a refrigerator, and a military vehicle, The size and quantity of the product can be adjusted.

According to the independent solar photovoltaic power generation apparatus according to the present invention, since the inclination angle of the solar cell module can be controlled based on the solar radiation amount according to the solar altitude observed from the solar radiation sensor, the power generation efficiency can be increased, The module can be stored and taken out with respect to the main body box, maximizing the space utilization, facilitating movement and storage, and simplifying installation.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Container House 11: Electrical space
12: living space 100, 200: stand-alone photovoltaic device
110, 210: main body box 111: storage groove
120, 220: first solar cell module 121: control motor
130, 230: second solar cell module 131: carrier frame
131a: first frame 131b: second frame
131c: third frame 132: solar panel
140, 150: Solar sensor 160, 160a:
161, 167a: first frame 162, 167b: second frame
163, 167c: third frame 165: control motor
166: auxiliary frame 167: adjusting frame
170: control unit 181: first wire
181a, 181b: first tube portion 182: second wire
182a, 182b: second tube portion 190: power conversion portion
191: Battery charger 192: Battery
193: Inverter 300: Power module box

Claims (17)

A main body box in which a receiving groove is formed for each of the plurality of side walls;
A first solar cell module mounted on the upper surface of the main body box so as to be tiltable;
A plurality of second solar cell modules including a carrier frame slidably coupled to the receiving groove to be drawn out forwardly and a solar cell plate tiltably coupled inside the carrier frame;
A plurality of angular adjustment units connected between the carrier frame and the solar panel to control a tilting angle of the solar panel with respect to the carrier frame;
A plurality of solar radiation measurement units mounted on the solar panel, respectively, for measuring a solar radiation size corresponding to the tilting angle;
A first and a second solar cell module extending from the solar cell panel toward the inside of the storage groove to transmit the power produced by the solar cell panel to the outside and the extended portions being fixed in a state of being spaced apart from each other with respect to a width direction of the storage groove; A second wire; And
A pair of first tube portions located in the interior of the receiving groove and passing through the first wires in the longitudinal direction and spaced apart from each other and a pair of second tube portions passing through the second wires in the longitudinal direction and spaced from each other A wire twist preventing portion,
In the solar panel,
Wherein the maximum tilting angle of the plurality of candidate tilting angles adjusted by the angle adjusting unit is set to a measured tilting angle,
A second central portion of the first electric wire exposed between the pair of first tube portions and a central portion of the second electric wire exposed between the pair of second tube portions when the second solar cell module is housed in the accommodating groove, The bending angle gradually decreases as the bending deformation occurs,
When the second solar cell module is completely housed, the first electric wire and the second electric wire are bent in a U-shape opposite to each other so that the longitudinal direction of the first and second tube portions is parallel to the width direction of the receiving groove A stand-alone photovoltaic device that is aligned. The method according to claim 1,
The solar radiation measuring unit includes:
And a sun inclination azimuth system for measuring the solar irradiance using the shadow length of the rod disposed on the disk or constituted by a solar sensor for sensing the solar irradiance at the top of the solar panel. delete delete The method according to claim 1,
Wherein the angle adjusting unit includes a first control motor connected to a tilting axis between the carrier frame and the solar panel,
The solar radiation measurement unit is a first solar radiation sensor for sensing a solar radiation amount at an upper portion of the solar panel,
The independent photovoltaic generation apparatus includes:
A control signal corresponding to the plurality of candidate tilting angles is sequentially transmitted to the first control motor while collecting a solar radiation amount from the first solar radiation sensor, 1 < / RTI > control motor. The method of claim 5,
Wherein the first solar cell module has a second solar radiation sensor for sensing a solar radiation amount on an upper surface thereof and the other end is coupled to the upper portion of the main body box by a pivot shaft so that one end thereof is rotatable with respect to the other end, A second control motor is connected to the pivot shaft,
Wherein,
A control signal for controlling the inclination angle of the first solar cell module is transmitted to the second control motor while collecting a solar radiation amount from the second solar radiation sensor and then a control signal corresponding to the inclination angle derived from the maximum solar radiation amount is transmitted to the second control A stand-alone photovoltaic generator that sets the motor last. The method according to claim 1,
The carrier frame is a 'C' -shaped frame in which one end of each of the second and third frames is coupled to both ends of the first frame,
Wherein the solar panel is disposed in a space between the second and third frames so that the solar panel can be tilted, a tilting axis is formed between the other end of the second and third frames and the solar panel, And is formed at an eccentric position. The method of claim 7,
Wherein the angle-
First and second frames each having one end rotatably coupled to both sides of one end of the solar panel; And
And a third frame connected between the other ends of the first and second frames, the third frame being slidably coupled on a rail groove formed at both ends in the longitudinal direction along the second and third frames,
Wherein the inclination angle of the solar panel is adjusted when the both ends slide. The method of claim 8,
Wherein the solar panel has a first inclination angle with the longitudinal direction of the first and second frames being erected,
The inclined angle of the solar panel is lower than the first inclination angle when the both ends of the solar panel slide in the one direction or the other direction in the upright state, and when the both ends slide in the other direction in the upright state, A stand-alone photovoltaic device in which the solar panel is kept horizontal. The method of claim 7,
Wherein the angle-
One end of which is connected to the first frame and the other end of which extends along the longitudinal direction of the second and third frames and is fixed to a part of the second and third frames, An auxiliary frame formed with a latching part of the auxiliary frame; And
Wherein one end of each of the first and second frames is rotatably coupled to both sides of a part of the solar panel, and the other ends of the first and second frames are connected through a third frame, And an adjustment frame for adjusting an inclination angle of the solar panel in a manner to be engaged with one of the engagement portions. The method of claim 10,
Wherein each of the pivotal shafts between the one end of the first and second frames and the solar panel is movable laterally in an elongated hole formed on both sides of a part of the solar panel,
Wherein when the pivot shaft is located on the first side of the hole, the third frame is embedded in an inner groove formed in one end of the solar panel,
Wherein when the pivot shaft is located on the second side of the hole, the third frame is separated from the inner frame, and the tilt angle is adjustable. The method according to claim 1,
A battery charger for optimizing and providing DC power produced by the first and second solar cell modules;
A battery for charging DC power from the battery charger; And
Further comprising an inverter for converting direct current power charged in the battery into alternating-current power and supplying the alternating-current power to the load of the installation object. The method of claim 12,
And a power module box coupled to a lower portion of the main body box and fixing the main body box to the roof of the installation object,
Wherein the battery charger, the battery, and the inverter are mounted on the power module box, respectively. 14. The method of claim 13,
The power module box includes:
Wherein a part of the upper surface of the main body box is cut at a predetermined inclination angle so as to control inclination of the main body box,
Controlling the motor for changing the rotation angle of the main body box, collecting the solar radiation amount of the solar radiation sensor mounted on the upper part of the solar cell plate of the first solar battery module and setting the rotation angle of the main body box at an angle derived from the maximum solar radiation amount And a control means. 15. The method of claim 14,
Wherein a pivot axis between the power module box and the main body box is formed on a lower portion of the main body box and is eccentrically formed on a point spaced from the central portion in the longitudinal direction of the main body box. The method according to claim 1 or 14,
The second solar cell module includes:
Wherein the pair of solar cell modules are hingedly connected to one another of the carrier frame,
Wherein the upper and lower solar cell modules are vertically stacked at the time of storage, and the upper solar cell module can be spread out to the lower solar cell module at the time of withdrawal. 18. The method of claim 16,
The receiving grooves are formed at different heights relative to four side walls of the main body box having a hexahedron shape,
Each of the four hinge connection portions of the second solar cell module is formed separately on one of four sides of the carrier frame so that the upper solar cell module is unfolded in different directions along the periphery of the four side walls,
Wherein all the four peripheries of the second solar cell modules laid out form a single rectangular shape.

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