KR101241452B1 - Solar power plant constructed on the water with cut prevention structure for transmission cable - Google Patents

Abstract

PURPOSE: A photovoltaic power generating device with a disconnection preventing structure of a transmission cable is provided to reduce a disconnection of a transmission cable in a connection point by including a buoyant element. CONSTITUTION: A solar cell assembly(110) is formed by combining a solar panel(112) with a supporter(111). The supporter supports the solar panel on the water by buoyancy. A mooring rope(120) supports the solar cell assembly not to be drifted away. A transmission cable(160) transmits electricity from the solar panel to land. A plurality of buoyant elements(170) are installed along the transmission cable. The buoyant element reduces a load applied to a connection point of the solar panel.

Description

SOLAR POWER PLANT CONSTRUCTED ON THE WATER WITH CUT PREVENTION STRUCTURE FOR TRANSMISSION CABLE}

The present invention relates to a water-based photovoltaic device, and in particular, by installing a buoyant body to reduce the weight of the transmission cable, the power transmission to solve the problem of disconnection at the connection point which is structurally weak due to the weight of the transmission cable The present invention relates to a water-based photovoltaic device having a cable disconnection prevention structure.

In general, electricity generating devices can be classified into thermal power generation using fossil fuels such as petroleum or coal, and solar, nuclear, hydro, tidal, and wind power generation depending on the energy source used.

Among these power generation devices, a power generation device using nuclear power has an advantage that it can generate electricity at a lower cost than thermal power generation, but installation is limited due to environmental pollution due to radioactivity and harmfulness of human body. Moreover, recently, facility investment has not been smoothly carried out due to the disposal of nuclear waste generated after electricity production.

In the case of thermal power generation, fossil fuels such as coal and petroleum are used. These generation fuels not only discharge substances that pollute the environment when electricity is generated, but also have high fuel costs. In addition, in recent years, oil prices have increased due to a decrease in resource reserves. Accordingly, power generation costs have increased, and thus, development of clean energy that does not generate substances polluting the environment is required.

In addition, recently, regulations are being implemented to curb the emission of carbon dioxide globally, and it is required to develop a new power generation device that does not emit carbon dioxide.

As such, there is no emission of carbon dioxide, and as a power generation device using clean energy, a power generation device using solar is typical, and in recent years, the development and installation cost of technology have become inexpensive, and its spread is expanding. However, the photovoltaic power generation device has a difference in power generation capacity depending on the generation area and the amount of sunshine.Therefore, there are many restrictions on the purchase of land due to the huge use of land in order to install it in a large area. Due to the costly problem, there was a practical difficulty of inducing cooperation of neighboring people in order to install power generation facilities on a large scale.

In addition, the solar power generating device installed on the land as in the prior art generates a huge amount of heat in the process of generating electricity by receiving the solar light, solar cell panels due to the enormous amount of energy transferred from the land on which the solar power generating device is installed It had a problem that degraded the performance and caused the failure.

Accordingly, in order to reduce the problems and to secure a large amount of sunshine and open installation area, water-based photovoltaic devices for installing solar panels on rivers, lakes, reservoirs, dams and the like have been actively proposed.

1 and 2 is a reference view for explaining the water based photovoltaic device according to the prior art.

As shown, the water based photovoltaic device according to the prior art is a solar cell assembly consisting of a solar panel 12 and a support 11 for supporting the solar panel 12 on the water surface by the buoyancy of the buoyancy body (13). 10, the mooring rope 20 draped to the ground under water while supporting the solar cell assembly 10 from being floated in a predetermined area, and installed in the middle of the mooring rope 20 to the mooring rope 20. With a sink 30 to impart tension, and a sinker 40 to fix the lower end of the mooring rope 20 to the underwater surface, a sinker 40 is installed in the solar cell assembly 10. It is configured to include a power transmission cable 50 for supplying electricity to the power grid.

In this case, the power transmission cable 50 extends long from the solar cell assembly 10 to the underwater surface. In this case, the connection point connecting the electric wire drawn from the terminal board of the solar cell assembly 10 and the power transmission cable 50 ( There was a fatal problem in that disconnection occurred at the connection point A while the load due to the weight of the power transmission cable 50 was concentrated in A).

In addition, the water-based photovoltaic device according to the prior art, as shown in the "B" region when the water level is low and high as shown in Figure 2, as shown in the "B" region, the mooring rope 20 is not normally released from the soil. There was also a problem that the solar cell assembly 10 of the "C" area in the drawing is submerged so as not to be unfolded to be submerged below the water surface.

Accordingly, the present invention has been proposed in order to solve the conventional problems as described above, an object of the present invention is to install a buoyant body to reduce the weight of the transmission cable by the connection point that is structurally weak due to the weight of the transmission cable The present invention provides a water-based photovoltaic device having a disconnection prevention structure of a transmission cable to solve the problem of disconnection.

In order to achieve the above object, the water-based photovoltaic device according to the technical idea of the present invention, a solar panel; A support for supporting the solar panel on the water surface by buoyancy; A mooring rope that connects the support and the ground to support the support so that the support is not floated; It includes a transmission cable draped from the solar panel to the underwater ground to transfer the electricity generated in the solar panel to the ground and then to the power grid of the land, a plurality of buoyancy body is installed along the transmission cable to the The technical configuration is characterized by relieving the load on the connection point with the solar panel due to its own weight.

Here, the buoyancy body may be installed in an area where the power transmission cable is draped to the ground, and may be continuously installed at regular intervals so as to increase the buoyancy in proportion to the weight of the power transmission cable from the connection point. .

In addition, the buoyancy body is made of a cylindrical body and is provided with a holding through hole formed in the longitudinal direction in the center thereof may be characterized in that the holding in the state penetrating the power transmission cable.

In addition, the safety rope having a weaker tensile strength than the mooring rope is installed in the middle of the mooring rope is broken when a predetermined or more tension is applied to prevent the flooding of the support due to the pulling of the mooring rope; Bypass the area where the safety rope is installed is connected between the mooring ropes before and after the safety rope, but even if the separation between the mooring ropes due to disconnection of the safety rope is more relaxed than the safety rope to accommodate this It may be characterized in that it further comprises a bypass circuit provided with a length.

In addition, the one end and the other end of the safety rope, one end and the other end of the bypass loop, while having a modular form with the safety rope and the bypass loop on both sides, and having a ring connected to the mooring rope with respect to the mooring rope It may be characterized in that it further comprises a pair of brackets for connecting the safety rope and the bypass loop in the middle.

In addition, a gas supply that operates when the safety rope is disconnected and supplies gas, a balloon that is connected to the gas supply and floats on the water while receiving gas, and a communicator that operates when the safety rope is disconnected, communicates with an external management center. It may be characterized by further included.

The water-based photovoltaic device according to the present invention can effectively solve the problem of disconnection at the connection point by providing a buoyancy body that reduces the weight of the power transmission cable underwater.

In addition, according to the present invention, the buoyancy body can support the power transmission cable in a balanced state in the water by providing a through hole through which the power transmission cable is held therein.

In addition, the present invention is provided with a safety rope and a bypass loop installed in the middle of the mooring rope, it is possible to prevent the solar cell assembly is submerged below the water surface in a sudden situation where the needle is stuck in the soil or the water level quickly increases.

1 and 2 is a reference diagram for explaining a water-based photovoltaic device according to the prior art.
3 is an overall configuration diagram for explaining a water-based photovoltaic device according to an embodiment of the present invention.
Figure 4 is a reference diagram for explaining the operation and effects of the water-based photovoltaic device according to an embodiment of the present invention.
Figure 5 is a block diagram for explaining a safety module in the water photovoltaic device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is an overall configuration diagram for explaining the water-based photovoltaic device according to an embodiment of the present invention, Figure 4 is a reference diagram for explaining the operation and effects of the water-based photovoltaic device according to an embodiment of the present invention. .

As shown, the water-based photovoltaic device according to an embodiment of the present invention, a solar cell made of a combination of the solar panel 112 and the support 111 to support the solar panel 112 to be positioned on the water surface by buoyancy. In addition to the assembly 110, the solar cell assembly 110 includes a mooring rope 120, a needle 130, a sinker 140, and a safety module 150 to support the floating. In addition, in order to transmit electricity generated by the solar panel 112 to the land, the electric wires drawn from the terminal panel of the solar panel 112 are connected to the connection point A, and are dropped to the ground of the water and then connected to the power grid of the land. The cable 160 and a plurality of buoyancy body 170 installed in some section along the power transmission cable 160 is further included.

Note that a plurality of buoyancy body 170 installed along the power transmission cable 160 reduces the weight of the power transmission cable 160 in the water. As a result, it is possible to alleviate the excessive load that is intensively applied to the connection point (A) due to the weight of the power transmission cable 160 to effectively solve the problem that the connection end of the power transmission cable (A) is short-circuited at the connection point (A). It can be.

Here, the buoyancy body 170 is installed in an area where the power transmission cable 160 is draped to the water surface, and the buoyancy body 170 is fixed so as to increase the buoyancy in proportion to the length or the weight of the power transmission cable 160 from the connection point (A). It is installed continuously at intervals. However, it should be noted here that the purpose of installation of the buoyancy body 170 is not to float the power transmission cable 160 above the water surface, but to reduce its own weight, so the buoyancy of the buoyancy body 170 is the power transmission cable 160. ) Is appropriate to support naturally in water.

In addition, the buoyancy body 170 may be formed in a variety of forms, but preferably a cylindrical member of a material having a small specific gravity, the holding through-hole 171 that can be held in a state that penetrates the power transmission cable 160 therein. It is good to have in the center. As such, when the holding through hole 171 is provided in the buoyancy body 170, the power transmission cable 160 is more balanced while holding the power transmission cable 160 in the center thereof.

As described above, the water-based photovoltaic device according to the embodiment of the present invention has a connection point A due to excessive weight of the power transmission cable 160 by a simple but continuous installation of the buoyancy body 170 in the power transmission cable 160. It is possible to effectively solve the chronic problem short-circuited at).

On the other hand, in the water photovoltaic device according to an embodiment of the present invention, the safety module 150 installed in the middle of the mooring rope 120 is quickly disconnected when the excessive tension is applied through the mooring rope 120 of the mooring rope By providing a safety rope 151 to open the space, as shown in Figure 4, the invasion of the solar cell assembly 110 is submerged under the water surface in a sudden situation where the water level 130 is lodged in the soil or suddenly increases the water level. It can prevent.

Hereinafter, the safety module 150 will be described in detail.

5 is a configuration diagram for explaining a safety module in the water photovoltaic device according to an embodiment of the present invention.

As shown, the safety module 150 includes a safety rope 151, a bypass loop 152, a pair of brackets 153a, a communicator 156, a gas supply 157, and a marking balloon. 158, which will be described in more detail below for each component.

The safety rope 151 is submerged in water but is installed in the middle of the mooring rope 120 at a position relatively close to the water surface and is provided with a weaker tensile strength than the mooring rope 120. In this case, the tensile strength of the safety rope 151 is appropriate enough to be surely broken when a tension of a magnitude exceeding the buoyancy of the support 111 is applied. To this end, the safety rope 151 is provided with a breaking portion 151a which is formed to have a narrower width than other portions and is easily broken. In addition, as described above, even if the safety rope 151 does not have the break portion 151a in the middle thereof, the overall thickness is thinned or moored so that it can be easily broken with respect to the tension exceeding the buoyancy of the support 111. The composition may be made of a material or a material having a lower tensile strength than the rope 120.

As a result, the safety rope 151 is rapidly disconnected at the moment when a predetermined or more tension exceeding the buoyancy of the support 111 through the mooring rope 120, so that some invasion 130 is stuck in the soil and cannot escape. Even in a situation where the water level is rapidly increased, the solar cell assembly 110 prevents the problem of being submerged below the water surface.

The bypass loop 152 bypasses the area where the safety rope 151 is installed and connects the mooring ropes 120 connected to the front and rear of the safety rope 151. Thus, the bypass loop 152 connects the mooring ropes 120 which are spaced apart instead of the bypass circuit 152 while receiving the safety ropes 151 and disconnecting the gap between the mooring ropes 120. Here, the bypass loop 152 is provided with a length sufficient to allow a smooth connection in the middle of the mooring ropes 120 to be spaced apart when the safety rope 151 is disconnected (however, the bypass loop 152 in the drawing). Is shown only slightly longer than the safety rope 151 for convenience, but may be provided as much longer than that.

The bracket 153a is a member made of a high strength metallic material or a synthetic resin material, which is positioned on both sides of the bracket 153a to form a modular form with the safety rope 151 and the bypass circuit 152, and one end and the other end of the safety rope 151, One end and the other end of the bypass loop 152 is fixed. The bracket 153a has a ring 153b connected to the mooring rope 120 to connect the safety rope 151 and the bypass circuit 152 with respect to the mooring rope 120 in the middle. do.

The gas supplier 157 forms a display unit that notifies the outside that the problem has occurred together with the mark balloon 158 and the communicator 156 and displays the position thereof. The gas supply 157 operates when the safety rope 151 is disconnected. It serves to supply gas to the balloon 158. To this end, the gas supplier 157 is connected to the detonation line 155 to operate. The detonation line 155 is installed while being connected to the other via any one of the pair of brackets 153a. When the separation between the brackets (153a) due to the disconnection of the safety rope 151 opens the physical force to the gas supply 157 to operate.

When the safety rope 151 is disconnected, the marker balloon 158 is connected to a gas supplier 157 that supplies gas while operating through the detonation line 155 to swell while being inflated to float above the water surface. As a result, the marker balloon 158 can be displayed to the outside that the safety rope 151 is disconnected to cause a problem. Referring to FIG. 4, when the safety rope 151 is disconnected, the marker balloon 158 inflated on the surface by receiving gas from the gas supplier 157 may be confirmed.

The communicator 156 is connected to the above-described detonation line 155 and acts to transmit a radio signal to an external management center while operating when the safety rope 151 is disconnected. As a result, the management center receives a signal from the communicator 156 and checks whether a problem occurs and a location of the problem, and takes action.

Referring to the accompanying drawings the operation and operation of the water-based photovoltaic device according to an embodiment of the present invention configured as described above in detail as follows.

When the water level is low, as shown in Figure 3, the height of the water surface is lowered, the transmission cable 160 and the mooring rope 120 is in a relaxed state. At this time, some of the plurality of installed on the lower side of the 130 is buried in the soil of the ground underwater.

Subsequently, when the water level is increased while the water level is high, the connection point A of the solar panel 112 and the power transmission cable 160 rises due to the buoyancy of the support 111, so that the connection end of the power transmission cable 160 also rises to the water surface. The length to reach will also increase. As a result, the load applied to the connection point A also increases due to the weight of the power transmission cable 160, but in the present invention, buoyancy bodies 170 continuously installed in proportion to the weight of the power transmission cable 160 are buoyant. It reduces the weight of the power transmission cable 160. As a result, the load applied to the connection point A due to the self-weight of the power transmission cable 160 is formed almost the same at low or high water level, and the problem that the connection end of the power transmission cable 160 is disconnected at the connection point A does not occur. Do not.

On the other hand, as the one end of the mooring rope 120 rises along the support 111, the mooring rope 120, which has been relaxed, is gradually tensioned. However, at this time, if the invasion of the invasion (130) buried in the soil of the ground remains stuck in the state without being stuck out of the soil, the mooring rope (120), which should be unfolded naturally, is restrained by the invasion of the soil (130). It does not support to act as a tendency to limit the rise of the support 111 to rise by buoyancy.

At this time, the mooring rope 120 is subjected to a strong tension exceeding the buoyancy of the support 111 and the safety rope 151 installed in the middle is disconnected without being able to bear the tension. Thus, the support 111 is allowed to rise along the surface while the separation of the middle point of the mooring rope 120 where the safety rope 151 is installed is wide enough.

At this time, the bypass loop 152 serves to reconnect the middle of the mooring rope 120 to a sufficient length in place of the disconnected safety rope 151. At this time, although the overall length is increased while the bypass loop 152 connects the mooring rope 120, the tension added by the invasion 130 is applied to the mooring rope 120 and the bypass circuit 152 while the solar cell assembly 110 is connected. To prevent unnecessary drifting.

On the other hand, when the safety rope 151 is disconnected and the separation between the pair of brackets 153a that is installed before and after the safety ropes increases, the detonation line 155 connected to the brackets 153a is pulled and the gas supplier ( 157 and communicator 156 operate.

Among these, the operation of the gas supplier 157 causes gas, which is stored therein, to be supplied and contracted to inflate the balloon 158 that has been contracted. As such, when the balloon 158 inflates over the surface of the water, it is possible to easily check the point where the problem occurs from the outside and take action.

In addition, when the communicator 156 is operated, it transmits a signal to an external management center to quickly determine whether a problem has occurred and a point where a problem occurs in the management center to take an action.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

110: solar cell assembly 111: support
112: solar panel 120: mooring rope
130: Invasion 140: Sinker
150: safety module 151: safety rope
152: bypass loop 153a: bracket
153b: loop 155: detonation line
156: communicator 157: gas supply
158: marker balloon 160: power transmission cable
170: buoyant body 171: through hole

Claims (6)

Solar panels;
A support for supporting the solar panel on the water surface by buoyancy;
A mooring rope that connects the support and the ground to support the support so that the support is not floated;
In order to transfer the electricity generated in the solar panel to the land is composed of a transmission cable draped from the solar panel to the underwater ground and connected to the power grid of the land,
A plurality of buoyancy bodies are installed along the transmission cable to reduce the load applied to the connection point with the solar panel due to the weight of the transmission cable. The method of claim 1,
The buoyancy body is installed in an area in which the transmission cable is draped to the ground, and the water photovoltaic power generation is characterized in that it is continuously installed at regular intervals to increase the buoyancy in proportion to the weight of the transmission cable from the connection point. Device. The method of claim 2,
The buoyancy body is made of a cylindrical body and is provided with a holding through-hole formed in the longitudinal direction in the center thereof, the water-based photovoltaic device characterized in that the holding in the state penetrating the power transmission cable. The method of claim 1,
A safety rope having a tensile strength weaker than that of the mooring rope and installed in the middle of the mooring rope to prevent the submersion of the support due to the pulling of the mooring rope while disconnecting when a predetermined tension is applied thereto;
Bypass the area where the safety rope is installed is connected between the mooring ropes before and after the safety rope, but even if the separation between the mooring ropes due to disconnection of the safety rope is more relaxed than the safety rope to accommodate this The water photovoltaic device further comprises a bypass circuit provided with a length. 5. The method of claim 4,
Secure one end and the other end of the safety rope, one end and the other end of the bypass loop while forming a modularized form with the safety rope and the bypass loop on both sides, and having a ring connected to the mooring rope. The solar photovoltaic device further comprises a pair of brackets for connecting the rope and the bypass loop in the middle. The method of claim 5,
A gas supply for operating gas when the safety rope is disconnected, and a gas balloon connected to the gas supply and floating on the water while receiving gas, and a communicator for operating when the safety rope is disconnected to communicate with an external control center. Water photovoltaic device, characterized in that the.

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