WO2017043685A1

WO2017043685A1 - Device for enhancing efficiency of photovoltaic power generation plant

Info

Publication number: WO2017043685A1
Application number: PCT/KR2015/010489
Authority: WO
Inventors: 유상필; 정성대; 오에녹
Original assignee: ㈜하이레벤
Priority date: 2015-09-07
Filing date: 2015-10-05
Publication date: 2017-03-16

Abstract

The present invention relates to a device for enhancing efficiency of a photovoltaic (PV) power generation plant, comprising a snow removing pipe module which is installed at a power plant site adjacent to the edges of the lower ends of a plurality of PV modules arranged so as to be inclined at a predetermined angle with respect to the power plant site, and which has therein a flow path through which hot water flows, wherein the snow removing pipe module melts snow piled up from the power plant site across the upper surface of each of the PV modules. The present invention is capable of rapidly removing snow which has piled up to the extent that the concentration of sunlight is impossible due to heavy snowfall, thereby maintaining maximum generating efficiency.

Description

Efficiency Improvement Device of Photovoltaic Power Plant

The present invention relates to a device for improving the efficiency of a solar power plant, and more particularly, the efficiency of a solar power plant that can maintain the power generation efficiency to the maximum by quickly removing snow accumulated to the extent that it is impossible to collect the solar light itself due to heavy snow. It relates to an improvement device.

Unlike conventional energy sources such as fossil raw materials, solar power is a clean energy source without the risks of greenhouse gas emissions, noise, and environmental degradation that cause global warming, and there is no fear of exhaustion. Photovoltaic power generation facilities have the advantage of free installation and low maintenance costs.

However, in the case of the most widely used silicon solar cells, the temperature of the photovoltaic module x, in particular, when the snow falls on the solar panel in winter, the power generation efficiency may decrease.

In order to prevent such deterioration of power generation efficiency due to such snow, an efficiency improvement facility (maintenance facility) of a solar power generation facility is used.

The solar power plant's efficiency improvement system is designed to cool the solar module's temperature and to clean and remove dirt and snow accumulated in the solar panel so that the solar module can generate a constant output. It maintains the function.

If the cooling effect on the solar module of the efficiency improvement facility of the solar power generation facility is not smooth or the cleaning action of the solar panel is not desired, the output of the solar module may be lowered.

From this point of view, the present applicant has filed an application for "efficiency improving apparatus of photovoltaic power generation facilities" (hereinafter, "preceding 1") of the registered patent No. 10-0914965, and "ideal flow generating nozzle and the use thereof." Efficiency improvement facilities of photovoltaic power generation facilities "(hereinafter," preceding 2 ").

However, the preceding 1 and the preceding 2 can be used in places where the amount of snowfall is not very high, but when installed in areas with heavy snow conditions, it is impossible to spray the fluid to remove snow accumulated from the nozzle itself. Will be faced.

Therefore, there is an urgent need to develop a device that can be applied and operated in an area with climatic conditions such as heavy snowfall that it is impossible to collect solar light itself.

[Preceding technical literature]

[Patent Documents]

Patent Registration No. 10-0914965

Patent Registration No. 10-1326240

The present invention has been invented to improve the above problems, it provides a device for improving efficiency of the solar power plant to maintain the power generation efficiency to the maximum by quickly removing the snow accumulated so that it is impossible to collect the solar light itself due to heavy snow. It is to.

In order to achieve the above object, the present invention is installed on the power generation site adjacent to each of the lower edges of the plurality of PV (photovoltaic) modules arranged at an angle with respect to the power generation site (敷地), hot water therein And a snow removal piping module for forming a flow path through which the snow removal piping module melts snow accumulated on the upper surface of each of the PV modules from the power generation site. Can be.

Here, the snow removal piping module is characterized in that it is disposed inclined from one side to the other side in the direction in which the plurality of PV modules are arranged.

In this case, the snow removing piping module is connected to the discharge pipe portion to form a first flow path for the hot water flowing from one side to the other side along the direction in which the PV module is disposed, and the first flow path formed by the discharge pipe portion And a return pipe portion forming a second flow path for returning the hot water from the other side to the one side, wherein the discharge pipe portion and the portion of the return pipe portion are respectively installed at the power generation site adjacent to the lower edges of the plurality of PV modules. The hot water circulates through the first flow path and the second flow path.

The snow removal piping module may include a first tank disposed at a first position of the power generation site, in which the hot water is received, and one end of the discharge pipe portion and the other end of the return piping portion are respectively connected; And a second tank disposed at a second position to receive the hot water, and to which the other end of the discharge pipe portion and one end of the return pipe portion are respectively connected, wherein the first position is higher than the second position. do.

The snow removing piping module may include at least one first fluid pump provided on the return pipe part to transfer the hot water to the discharge pipe part, and at least one provided on the discharge pipe part to supply the hot water. It further comprises a second fluid pump for transferring to the return pipe portion.

The snow removing piping module may further include a first fluid pump provided on at least one of the return pipe parts to return the hot water to the discharge pipe part.

The snow removing pipe module may include a first discharge port provided under the outer side of the first tank and connected to one end of the discharge pipe, and provided above the outer side of the first tank. A first return port connected to an end portion, a second discharge port provided below the outer side of the second tank and connected to one end of the return pipe portion, and disposed above the outer side of the second tank; It further comprises a second return port connected to the other end of the negative.

The snow removing pipe module may further include a first fluid motor provided at the other end side of the return pipe part to draw up the hot water to the first return port side.

The snow removing pipe module may further include a second fluid motor provided at the other end side of the discharge pipe part to draw up the hot water to the second return port side.

The discharge pipe part may include: a first melting part installed at each of the power generation sites adjacent to lower edges of the plurality of PV modules, and a first connecting part of one end or the other end of each of the plurality of first melting parts; A connecting portion, a first start portion interconnecting the first fusion portion disposed closest to the first tank and the first discharge port, the first fusion portion disposed closest to the second tank and the first And a first transit portion interconnecting the two return ports.

The return pipe part may further include a second fusion part provided at each of the power generation sites adjacent to edges of lower ends of the plurality of PV modules, and a second interconnection part of one end or the other end of each of the plurality of second fusion parts. A connecting portion, a second starting portion interconnecting the second fusion portion disposed closest to the second tank and the second discharge port, the second fusion portion disposed closest to the first tank and the first And a second transit unit interconnecting the first return port.

According to the present invention having the above configuration, the following effects can be achieved.

First, the present invention provides a snow piled up to the extent that it is impossible to condense solar light due to heavy snow from a structure including a snow removal piping module installed at the power generation site adjacent to the lower edges of the plurality of PV modules and forming a flow path through which hot water flows. By removing it quickly, it is possible to maintain the power generation efficiency to the maximum.

In particular, the present invention is to arrange the snow removal piping module inclined from one side to the other side along the direction in which the PV module is arranged, or by installing the snow removing piping module along the inclined direction of the power generation site itself is arranged obliquely, from low to high Since hot water needs to be circulated using the driving force only in the flow path of hot water, power consumption can be minimized.

1 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to an embodiment of the present invention

Figure 2 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to another embodiment of the present invention

Figure 3 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to another embodiment of the present invention

Figure 4 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to another embodiment of the present invention

5 and 6 sequentially show the process of snow removal using the efficiency improving apparatus of the solar power plant according to an embodiment of the present invention, Figure 5 (a) is a main part of the present invention to operate the snow removal piping module Snow is accumulated in the power generation site and the entire PV module before making it, Figure 5 (b) is a melting state of snow accumulated on the power generation site, Figure 6 (a) is snow accumulated on the PV module slides along the direction of gravity Figure 6 (b) is a side conceptual view showing a state in which all the snow accumulated by the snow removal piping module which is the main part of the present invention melted down and stacked on the snow removal piping module and the power generation site.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

In this specification, the embodiments are provided so that the disclosure of the present invention may be completed and the scope of the present invention may be completely provided to those skilled in the art.

And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations and well known techniques are not described in detail in order to avoid obscuring the present invention.

In addition, the same reference numerals throughout the specification refer to the same components, and the terminology (discussed) used herein is for the purpose of describing the embodiments are not intended to limit the invention.

As used herein, the singular forms "a", "an" and "the" include plural unless the context clearly dictates otherwise, and the elements and acts referred to as 'comprises' or 'do' not exclude the presence or addition of one or more other components and acts. .

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

In addition, the terms defined in the commonly used dictionary are not ideally or excessively interpreted unless they are defined.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

For reference, Figure 1 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to an embodiment of the present invention.

And, Figure 2 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to another embodiment of the present invention.

And, Figure 3 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to another embodiment of the present invention.

And, Figure 4 is a perspective view showing the overall structure of the efficiency improving apparatus of the solar power plant according to another embodiment of the present invention.

5 and 6 sequentially illustrate a process of removing snow using an efficiency improving apparatus for a photovoltaic power generation facility according to an embodiment of the present invention, and FIG. 5 (a) shows a snow removing piping module which is a main part of the present invention. Before operating the 200, the snow 500 is stacked on the power generation site 300 and the entire PV module 100, Figure 5 (b) is a state in which the accumulated snow 500 on the power generation site 300 is melted Side conceptual view showing each.

6A illustrates a state in which the snow 500 accumulated on the PV module 100 slides down along the gravity direction and flows down on the snow removing piping module 200 and the power generation site 300. (b) is a side conceptual view showing a state in which all the snow 500 accumulated by the snow removing piping module 200 which is a main part of the present invention is melted.

The present invention is installed on each of the power generation site 300 adjacent to the bottom edge of the plurality of photovoltaic (PV) modules 100 arranged inclined at a predetermined angle with respect to the power generation site (300), as shown, It can be seen that the structure including the snow removal piping module 200 to form a flow path for flowing hot water therein.

Here, the snow removing piping module 200 is capable of melting the snow 500 (see FIGS. 5 and 6 below) accumulated on the upper surface of each of the PV modules 100 from the power generation site 300.

Therefore, the present invention can maintain the power generation efficiency to the maximum by quickly removing the snow accumulated to the extent that it is impossible to collect the sunlight itself due to heavy snow.

The present invention can be applied to the above embodiments, and of course, the following various embodiments are also applicable.

First, the power generation site 300 may be formed to be inclined from one side to the other side along the direction in which the plurality of PV modules 100 are disposed so as to enable circulation of the hot water flowing in the snow removing piping module 200, or the snow removing piping module ( 200 may be arranged to be inclined from one side to the other side along the direction in which the plurality of PV modules 100 are arranged.

Here, the snow removing piping module 200, the discharge pipe portion 210 and the discharge pipe portion 210 to form a first flow path (P1) in which hot water flows from one side to the other side along the direction in which the PV module 100 is disposed. ) May be connected to the first flow path (P1) is formed and may include a return pipe 220 for forming a second flow path (P2) to return the hot water from one side to one side.

In this case, a part of the discharge pipe 210 and the return pipe 220 are respectively installed in the power generation site 300 adjacent to the lower edges of the plurality of PV modules 100, the hot water is the first flow path (P1) and the first The two flow paths P2 are circulated.

In addition, the snow removing piping module 200 may include the first and

second tanks

230 and 240 so as to provide a space in which the hot water circulating in the first flow path P1 and the second flow path P2 is temporarily stored. It is preferable to further provide.

The first tank 230 is disposed at the first position T1 of the power generation site 300 to receive hot water, and one end of the discharge pipe 210 and the other end of the return pipe 220 are connected to each other. will be.

The second tank 240 is disposed at the second position T2 of the power generation site 300 to receive hot water, and the other end of the discharge pipe part 210 and one end of the return pipe part 220 are connected to each other. .

Here, the first position T1 may be higher than the second position T2 so that the hot water flows in the gravity direction through the first flow path P1.

In this case, the snow removing pipe module 200 may further include a first fluid pump 250 provided on at least one of the return pipe parts 220 to return the hot water to the discharge pipe part 210 as shown in FIG. 2. .

That is, the power generation site 300 has a terrain condition formed to be gradually inclined downward from one side to the other side as shown in FIG. 2, or the exhaust pipe 210 and the return piping 220 are gradually inclined downward from one side to the other side. You can do that.

Therefore, the hot water in the discharge pipe 210 may be naturally transferred in the direction of gravity.

On the other hand, the snow removal piping module 200, as shown in Figure 3, when the power generation site 300 is a flat plain with little gradient, at least one is provided on the return piping 220, hot water to the discharge pipe 210 side. It may be further provided with a first fluid pump 250 for transferring and a second fluid pump 260 provided on at least one on the discharge pipe 210 to transfer hot water to the return pipe 220.

Meanwhile, referring to FIGS. 2 to 4, the snow removing piping module 200 is provided below the outer side surface of the first tank 230 and is connected to one end of the discharge pipe part 210. ) And a first return port 232 provided on the outer side of the first tank 230 and connected to the other end of the return pipe part 220.

In addition, the snow removal piping module 200 is provided under the outer side of the second tank 240 and connected to one end of the return pipe portion 220 and the second tank 240. It may be further provided with a second return port 242 is provided on the outer side of the upper portion connected to the other end of the discharge pipe (210).

The positions of the first and second discharge ports 231 and 241 and the first and

second return ports

232 and 242 are arranged at different heights as shown in FIG. And to reduce the heating load.

That is, the hot water replenishment inside the first and

second tanks

230 and 240 is usually made from the top of each of the first and

second tanks

230 and 240, and usually replenishes the cold water.

Therefore, since the temperature of the cold water rises to some extent by mixing with the cold water supplemented with the warm water of the lowered temperature returned from the first and

second return ports

232 and 242, the cold water is directly heated to the use temperature. It is possible to reduce the heating load and the operation of the heater for.

On the other hand, the discharge pipe 210, as described in more detail with reference to Figures 2 to 4, the first melting portion 211 which is respectively installed in the power generation site 300 adjacent to the lower edge of the plurality of PV modules 100 ) And a first connection part 212 connecting one end or the other end of each of the plurality of first fusion parts 211 to each other.

The discharge pipe part 210 may include a first start part 213 connecting the first fusion part 211 and the first discharge port 231 disposed closest to the first tank 230, and It can also be seen that it includes a first fusion portion 214 interconnecting the first fusion portion 211 and the second return port 242 disposed closest to the two tanks 240.

Meanwhile, the return pipe part 220 will be described in more detail with reference to FIGS. 2 to 4, and the second fusion part 221 respectively installed at the power generation site 300 adjacent to the bottom edges of the plurality of PV modules 100 will be described. ) And a second connecting portion 222 connecting one end or the other end of each of the plurality of second fusion portions 221 to each other.

In addition, the return pipe part 220 may include a second start part 223 connecting the second fusion part 221 and the second discharge port 241 disposed closest to the second tank 240, and It can also be seen that the second melter 221 disposed closest to the first tank 230 includes a second gas passage 224 that interconnects the first return port 232.

Meanwhile, the snow removing piping module 200 may further include the first and second fluid motors 270 and 280 to smoothly return the hot water to the first and

second return ports

232 and 242 as shown in FIG. 4. It is preferable to provide.

The first fluid motor 270 is provided at the other end side of the return pipe part 220, that is, the second gas passage part 224, and serves to draw hot water to the first return port 232.

In addition, the second fluid motor 280 is provided at the other end side of the discharge pipe part 210, that is, the first gas oil part 214, and serves to raise hot water to the second return port 242.

Meanwhile, although the present invention is not particularly illustrated, the temperature sensor (not shown) provided in each of the first tank 230 and the second tank 240 to sense the temperature of hot water in real time may be electrically connected to the temperature sensor. Each of the first tank 230 and the second tank 240 may further include a heater (hereinafter, not shown) that is heated when the temperature of the hot water drops below a predetermined temperature.

In addition, although the present invention is not particularly illustrated, in association with the temperature sensor and the heater and the controller 400 to be described later, the snow 500 is accumulated on one side of the power generation site 300 or the PV module 100 in real time. It may further include a snow detection sensor or an optical sensor that can detect.

In addition, the present invention is electrically connected to the heater, the first fluid motor 270 and the second fluid motor 280 as shown in Figure 4, respectively, the heater, the first fluid motor 270 and the second fluid motor 280 It may further include a controller 400 for controlling the operation of the.

Here, the controller 400 also controls the operation of the first fluid pump 250 and the second fluid pump 260.

With reference to FIGS. 5 and 6, a snow removal process using the efficiency improving apparatus of the solar power plant according to various embodiments of the present invention as described above will be briefly described.

For reference, reference numerals not shown in FIGS. 5 and 6 refer to FIGS. 1 to 4.

First, before operating the snow removal piping module 200, snow 500 accumulates over the power generation site 300 and the entire PV module 100 due to heavy snow as shown in FIG.

In this state, since the eye 500 makes it impossible to condense the PV module 100 itself, power generation itself is also impossible.

At this time, when the snow sensor or the optical sensor detects that the power generation itself is not possible due to the normal condensation of the PV module 100 due to the snow 500 accumulated throughout the power generation site 300 and the PV module 100, snow removal piping The signal for operating the module 200 is transmitted to the controller 400.

Thereafter, when snow 500 accumulated on the power generation site 300 is melted as shown in FIG. 5B by hot water flowing through the first and

second melting parts

211 and 221 of the snow removing piping module 200, the PV module The eye 500 of the upper surface 100 flows down the upper surface of the PV module 100 formed to be inclined.

Subsequently, when the snow 500 which has flowed down slides along the gravity direction as shown in FIG. 6 (a) and flows down on the snow removal piping module 200 and the power generation site 300, the snow removal piping module 200 continues. By operating and melting all the snow 500 stacked as shown in FIG. 6 (b), the PV module 100 is to make a state that can normally generate power.

As described above, the present invention provides a basic technical idea to provide a device for improving efficiency of a photovoltaic power plant that can maintain power generation efficiency by quickly removing snow accumulated so that it is impossible to collect solar light due to heavy snow. Able to know.

In addition, many modifications and applications are possible to those skilled in the art within the scope of the basic technical idea of the present invention.

Claims

It is installed at each power generation site adjacent to the lower edge of the plurality of PV (photovoltaic) modules arranged at an angle with respect to the power generation site, and includes a snow removal piping module to form a flow path for the hot water therein; ,

The snow removing piping module is a device for improving efficiency of a photovoltaic power generation facility, characterized in that to melt the snow accumulated on the upper surface of each of the PV module from the power generation site.
The method according to claim 1,

The snow removing pipe module is an efficiency improving apparatus of the solar power generation facility, characterized in that arranged inclined from one side to the other side along the direction in which the plurality of PV modules are arranged.
The method according to claim 1,

The snow removal piping module,

A discharge pipe part forming a first flow path in which the hot water flows from one side to the other side along the direction in which the PV module is disposed;

A return pipe part connected to the first flow path formed by the discharge pipe part and forming a second flow path to which the hot water is returned from the other side to the one side;

A portion of the discharge pipe portion and the return pipe portion are respectively installed at the power generation site adjacent to the lower edges of the plurality of PV modules,

The hot water circulates through the first flow passage and the second flow passage.
The method according to claim 3,

The snow removal piping module,

A first tank disposed at a first position of the power generation site and accommodating the hot water, and having one end portion of the discharge pipe portion and the other end portion of the return piping portion connected to each other;

A second tank disposed at a second position of the power generation site to accommodate the hot water and to which the other end of the discharge pipe part and one end of the return pipe part are respectively connected;

The first position is higher than the second position, the efficiency improving apparatus of the solar power plant.
The method according to claim 3,

The snow removal piping module,

A first fluid pump provided on at least one of the return pipe parts to transfer the hot water to the discharge pipe part;

At least one or more provided on the discharge pipe portion efficiency improvement apparatus for a photovoltaic power generation equipment further comprises a second fluid pump for transferring the hot water to the return pipe side.
The method according to claim 3 or 4,

The snow removal piping module,

At least one or more on the return pipe portion is provided with a first fluid pump for returning the hot water to the discharge pipe portion side efficiency improvement apparatus of the solar power plant.
The method according to claim 4,

The snow removal piping module,

A first discharge port provided below the outer surface of the first tank and connected to one end of the discharge pipe;

A first return port provided on the outer side of the first tank and connected to the other end of the return pipe;

A second discharge port provided below the outer surface of the second tank and connected to one end of the return pipe;

And a second return port provided on the outer side of the second tank and connected to the other end of the discharge pipe part.
The method according to claim 7,

The discharge pipe portion,

A first fusion unit installed at each of the power generation sites adjacent to edges of lower ends of the plurality of PV modules;

A first connection part interconnecting one end or the other end of each of the plurality of first fusion parts;

A first start portion interconnecting the first fusion portion and the first discharge port disposed closest to the first tank,

And a first gas passage unit configured to interconnect the first fusion unit and the second return port disposed closest to the second tank.
The method according to claim 7,

The return pipe portion,

A second fusion unit installed at each of the power generation sites adjacent to lower edges of the plurality of PV modules;

A second connection part interconnecting one end or the other end of each of the plurality of second fusion parts;

A second starting portion interconnecting the second melted portion and the second discharge port disposed closest to the second tank;

And a second gas passage unit which interconnects the second fusion unit and the first return port disposed closest to the first tank.
The method according to claim 7,

The snow removal piping module,

And a first fluid motor provided at the other end side of the return pipe portion to draw up the hot water to the first return port side.
The method according to claim 7,

The snow removal piping module,

And a second fluid motor provided at the other end side of the discharge pipe portion to pull up the hot water to the second return port side.