KR20160001106A - Gravity type mooring apparatus for solar power plant constructed on the water - Google Patents

Abstract

The present invention relates to a gravity-type mooring device for a marine solar power generating device capable of stably supporting a solar cell assembly not to be out of a preset region or not to rotate while smoothly receiving a high water level difference even though the water level difference is high by getting away from a conventional way of applying tension to a mooring rope with a sinker. The gravity-type mooring device for a marine solar power generating device includes: a roller installed in the solar cell assembly; a motor capable of providing a driving force to the roller; the mooring rope having one end connected to the sinker installed on the sea bed, and the other end installed with a weight and installed to be wound around the roller in order to apply a weight load to the solar cell assembly; a switching member selectively limiting the roller to be rotated or not to be rotated by an external force; a first sensor sensing an increase in water level; a second sensor sensing a decrease in water level; and a controller usually limiting the roller not to rotate by controlling the switching member, however, allowing the roller to rotate by controlling the switching member when the first sensor consistently senses an increase in water level for a predetermined time or the second sensor consistently senses a decrease in water level for a predetermined time.

Description

TECHNICAL FIELD [0001] The present invention relates to a gravity type mooring apparatus for a photovoltaic power generating apparatus,

The present invention relates to a mooring apparatus for an aquatic power generating apparatus, and more particularly to a mooring apparatus for an aquamarine power generating apparatus, which is capable of accommodating a mooring rope, The present invention relates to a gravity type mooring apparatus for a photovoltaic power generation apparatus capable of stably supporting the apparatus so as not to rotate.

Generally, a power generating apparatus generating electricity can be classified into thermal power generation using fossil fuel such as petroleum or coal and solar power, nuclear power, hydroelectric power, tidal power, 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. Moreover, recently, oil prices have been rising due to a decrease in resource reserves, and as a result, power generation costs have increased, and it is possible to replace them, and development of clean energy that does not generate substances that pollute 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 a power generation device using solar energy is a typical power generation device using clean energy. Recently, the development and installation costs of technology have been reduced, and the spread has been spreading. However, there is a difference in generating capacity depending on the area and the amount of sunshine. However, due to the use of enormous land for installation on a large area, there are many restrictions on the purchase of the land. There was a real difficulty in drawing up the cooperation of the surrounding people in order to install the large-scale power generating facilities.

In addition, as in the prior art, the photovoltaic power generation apparatus installed on the land generates enormous amount of heat in the process of generating electricity by receiving sunlight and enormous amount of wastes are transferred from the land where the solar power generation apparatus is installed, Which causes degradation of performance and causes malfunctions.

Accordingly, an aquarium photovoltaic power generation system in which a solar panel is installed on a water surface of a river, a lake, a reservoir, a dam, and the like is actively proposed in order to secure a wide installation area with abundant sunshine while reducing problems.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a reference diagram for describing a mooring apparatus for an aquatic power generating apparatus according to the prior art; FIG.

As shown in FIG. 1, the prior art photovoltaic power generation apparatus includes a solar cell assembly 10 including a solar cell plate 12, a support 11 for supporting the solar cell plate 12 on the water surface by buoyancy, A mooring rope 20 which is supported to prevent the solar cell assembly 10 from being floated in a predetermined area while being dumped up to the ground in the water course and a piercing rod 20 installed midway between the mooring ropes 20 to impart tension to the mooring rope 20 And a sinker 40 for fixing the lower end of the mooring rope 20 to the ground.

In the case of such a solar photovoltaic power generation apparatus, it is important to hold the water level difference from a few meters to a few tens of meters depending on the installation environment, while maintaining the direction without rotating so as to receive the abundant sunlight. For this purpose, the mooring rope (20) is provided with a sufficient length so as to be able to cope with a high water level at a high water level, and the mooring (30) is tensioned by self weight to the mooring rope (20) So that the problem that the battery assembly 10 is out of the predetermined area or unnecessarily rotated can be suppressed.

However, the conventional method of applying the tension to the mooring rope 20 by using the sink 30 is not so reliable as to support the solar cell assembly 10 and to control it so as not to go out of the predetermined area or rotate. In particular, when the mooring rope 20 is in a relaxed state at low water level, when a horizontal external force is generated due to a wind load or the like, there is a problem that the mooring rope 20 deviates from an appropriate position or rotates unnecessarily.

Korean Patent Registration No. 1248151 (Mar. 31, 2013)

It is therefore an object of the present invention to overcome the above-mentioned problems of the prior art, and it is an object of the present invention to provide a mooring rope, The present invention is to provide a gravity type mooring apparatus for an aquarium photovoltaic power generation apparatus capable of stably supporting the battery assembly such that the battery assembly does not move out of a predetermined area or rotate.

In order to achieve the above object, a gravity type mooring device for a water photovoltaic power generation apparatus according to the technical idea of the present invention includes a solar cell plate, a frame for supporting the solar cell plate on the water surface, A gravity mooring apparatus for a solar photovoltaic power generation apparatus, comprising: a roller installed in the solar cell assembly; A mooring rope connected at one end to a sinker installed at the water surface and having a weight at the other end and passing through the roller so that the weight of the weight can be applied to the solar cell assembly; A switching member selectively restraining the roller from rotating or rotating due to an external force transmitted through the mooring rope; A first sensing sensor for sensing a rise in the water level; A second sensing sensor for sensing a descent of the water level; The first sensing sensor continuously detects the rise of the water level for a predetermined time or the second sensing sensor continuously senses the fall of the water level for a predetermined time or longer, And a controller for controlling the switching member to allow the roller to rotate.

Here, the first sensing sensor includes a water pipe installed upright in the inside of the float, and having a lower portion opened to communicate with the outside of the float, and reflecting a water level outside the float while allowing water to flow therein; A floating lifting body provided in the water tube and moving up and down according to a water level of the inflow water; And a water level sensor installed at the upper part of the water pipe to sense when the floating type ascending / descending body rises above a predetermined height in the water tube and to transmit the sensing signal to the controller.

In addition, the mooring rope is passed through the roller in a state of wrapping the roller twice or three times in order to transmit tension through the roller.

The second sensing sensor may be a torque sensor for measuring a torque of the roller to sense a tension transmitted through the mooring rope at a connection point between the roller and the motor.

A reduction gear assembly for reducing the rotation speed of the motor is provided between the roller and the motor. A first flange and a second flange, which are respectively connected to the rotation shaft of the roller and the output shaft of the reduction gear assembly, Wherein the switching member includes a restraining pin for connecting the first flange and the second flange together by a forward movement and for releasing the connection of the first flange and the second flange by a retreating operation . ≪ / RTI >

The gravity mooring device according to the present invention can stably support the solar cell assembly so that the solar cell assembly does not deviate from the predetermined area or rotate while maintaining the rope constantly taut due to the weight of the weight while flexibly coping with the rising or falling of the water level have.

Brief Description of the Drawings Fig.
FIG. 2 is a view illustrating a state of use of the water-based photovoltaic power generation apparatus to which the gravity type mooring apparatus according to the embodiment of the present invention is applied
3 is a side view and a plan view of a roller assembly in a gravity type mooring apparatus according to an embodiment of the present invention;
4 is a plan view of a roller assembly in a gravity type mooring apparatus according to an embodiment of the present invention.
FIG. 5 is a diagram for explaining the operation of the gravity type mooring apparatus according to the embodiment of the present invention,
6A and 6B are partial enlarged cross-sectional views for explaining the operation of the switching member in the gravity type mooring apparatus according to the embodiment of the present invention
7A and 7B are partially enlarged cross-sectional views for explaining the configuration and operation of the first sensing sensor in the gravity type mooring apparatus according to the embodiment of the present invention

A gravity type mooring apparatus for an aquatic power generating apparatus according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic configuration.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

3 and 4 are a side view and a plan view of a roller assembly in a gravity type mooring apparatus according to an embodiment of the present invention, and FIG. 4 is a side view and a plan view of a roller assembly in a gravity type mooring apparatus according to an embodiment of the present invention, 5 is a configuration diagram of a roller assembly in a gravity type mooring apparatus according to an embodiment of the present invention.

As shown in the figure, the gravity mooring device according to the embodiment of the present invention includes a solar cell assembly 11 made up of a support 12 and a float 13 for supporting the solar panel 11 and the solar panel 11 on the water surface The mooring rope 130 is connected to a sinker 140 installed at the water surface so as to support the solar cell assembly 10 so as not to float. The weights 120 provided at the other end of the rope 130 and the mooring rope 130 are installed so as to pass through the mooring rope 130 and the weight of the weight 120 is applied to the solar cell assembly 10, As a main component, a roller assembly 110 that permits or constrains the unwinding of the roller assembly 110.

The gravity type mooring device according to the embodiment of the present invention having such a configuration flexibly responds to the rise and fall of the water level, while maintaining the tension of the mooring rope 130 even when the water level is high or low, ) Is locked so as not to be loosened while maintaining the tension, and there is no problem that the power generation efficiency is deteriorated unnecessarily when the horizontal load such as the wind load is applied.

Hereinafter, a gravity type mooring apparatus according to an embodiment of the present invention will be described in detail with reference to the above components.

The roller assembly 110 is installed in the frame 12 of the solar cell assembly 10 and primarily allows the mooring rope 130 installed at the other end to pass therethrough, To the battery assembly 10. As a result, the mooring rope 130 is maintained in a tight tension and the solar cell assembly 10 is provided with a sense of stability. Here, the mooring rope 130 is configured to be passed through the roller 111 of the roller assembly 110 as shown in FIG. 4 by being wound about two to three times. If the mooring rope 130 is not wound on the roller 111 but wrapped around the roller 111 for about two to three times, the binding force due to the frictional contact force between the roller 111 and the mooring rope 130 can be strengthened So that the force is smoothly transmitted.

Further, the roller assembly 110 serves to allow or restrict the release of the mooring rope 130 as needed. To this end, the roller assembly 110 includes a roller 111 passing through the mooring rope 130, a motor 113 for providing a driving force to the roller 111 as shown in FIG. 5, A reduction gear assembly 112 for reducing the rotation speed of the motor 113 between the motor 111 and the motor 113 and a reduction gear assembly 112 for selectively rotating the roller 111 by an external force transmitted through the mooring rope 130 A first sensing sensor 150a and a second sensing sensor 150b for sensing the rise and the fall of the water level, respectively.

The first flange 111b and the second flange 112b are provided on the rotary shaft 111a of the roller 111 and the output shaft 112a of the reduction gear assembly 112, respectively, The first flange 111b and the second flange 112b are connected to each other so that the first flange 111b and the second flange 112b are rotated together by the forward movement of the member 114, And a switching body 114a for moving the restraining pin 114b forward and backward by an electromagnetic force. 6A shows a state in which the restraining pin 114b is retracted when power is applied to the switching body 114a. When the restraining pin 114b is retracted, the rotation axis of the roller 111 The connection between the first flange 111b provided on the output shaft 111a of the reduction gear assembly 112 and the second flange 112b provided on the output shaft 112a of the reduction gear assembly 112 is released and the roller 111 is rotated by the external force transmitted by the mooring rope 130 So that it can be rotated. On the other hand, FIG. 5B shows a state in which the restraining pin 114b is advanced without applying power to the switching body 114a. When the restraining pin 114b is advanced, the restraining pin 114b The connection between the first flange 111a of the rotary shaft 111a of the roller 111 and the second flange 112b of the output shaft 112a of the reduction gear assembly 112 is performed by an external force transmitted by the mooring rope 130 The roller 111 can not rotate, but can be rotated by the driving force of the motor 113 instead.

As described above, the first sensing sensor 150a, which serves to sense the rise of the water level, is installed upright inside the float 13, but the lower portion thereof is opened to allow the inflow of water, A floating structure 152 provided inside the water pipe 151 and floating up and down according to a water level of the water flowing in the water pipe 151, And a water level sensor 153 for sensing when the body 152 rises above a predetermined height in the water pipe 151 and transmitting the detection signal to the controller 115. Here, the water level sensor 153 may be provided with various sensors for sensing the approaching floating body 152. For example, the water level sensor 153 may be a magnetic sensor. In this case, a magnet for generating a magnetic force may be included in the floating / ascending / descending body 152. According to the configuration of the first sensing sensor 150a, if there is no change in the water level, the water level is in the state shown in FIG. 7A. If the water level rises, water flows into the water pipe 151 as shown in FIG. So that the floating lifting and descending member 152 located inside is raised. At this time, when the floating lifting body 152 approaches the water level sensor 153, the water level sensor 153 detects the floating lifting body 152 and transmits a detection signal to the controller 115. Then, the controller 115 receives the detection signal from the water level sensor 153 and determines that the water level rises when the water level sensor 153 continuously sends the detection signal for a predetermined time or more, The restraining pin 114b is retracted to release the locking state of the roller 111. [ The rotation of the roller 111 is allowed, so that the solar cell assembly 10 can rise naturally as the water level rises.

Wherein the float 13 provides buoyancy to float the solar cell assembly 10 against the surface of the water. For this purpose, the float 13 may be made of styrofoam or a material having a function corresponding thereto, and may be formed as a hollow casing.

The second sensing sensor 150b measures the tension applied to the mooring rope 130 and may be implemented in various ways. However, rather than directly measuring the tension from the mooring rope 130, It is preferable to measure the tension applied to the mooring rope 130 by measuring the torque applied to the mooring rope 111. [ The second sensing sensor 150b is installed at a connection point between the rotary shaft 111a of the roller 111 and the output shaft 112a of the reduction gear assembly 112, A torque sensor can be used to measure the torque. If the second sensing sensor 150b is provided, the tension applied to the mooring rope 130 is weakened when the water level falls. If the tension below the reference level lasts for a predetermined time or longer, the controller 115 continuously lowers the water level And power is applied to the switching member 114 as in the case of the rise of the water level, thereby releasing the state in which the roller 111 is restrained by the restraining pin 114b. The rotation of the roller 111 is permitted, so that the solar cell assembly 10 can be lowered naturally as the water level drops. At this time, the roller 111 passing through the mooring rope 130 in the form of being wound two to three times is in a free-end state and rotated forward by the weight 120, so that the mooring rope 130 is not loosely slacked, Lt; / RTI > Thereafter, when the water level is no longer lowered, the tension applied to the mooring rope 130 becomes equal to or higher than the reference value, and the second sensing sensor 150b measures the tension. Then, the controller 115 judges that the descending of the water level has stopped, and controls the switching member 114 so that power is not applied, thereby making the roller 111 in the locked state or the locked state by the restraining pin 114b. The roller 111 functions to fix the mooring rope 130 which is already in a taut state by the weight 120 so that the mooring rope 130 is not loosened so that even when the horizontal load such as wind load is applied to the solar cell assembly 10, So that the battery assembly 10 is prevented from moving out of position or unnecessarily rotating as the battery assembly 10 drifts.

Hereinafter, the operation of the gravity type mooring apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

The gravitational mooring device according to the embodiment of the present invention can prevent the roller 111 from leaking from the restraint of the switching member 114 when the mooring rope 130 is tightly held by the weight 120, And is restrained not to rotate by the pin 114b. As a result, the mooring rope 130 is released due to the horizontal load applied to the solar cell assembly 10, thereby preventing the solar cell assembly 10 from moving unnecessarily or rotating.

However, when the water level rises, water flows into the water pipe 151 of the first sensing sensor 150a, and the floating type ascending / descending body 152 located therein is raised. At this time, The sensor 151 approaches the sensor 153 and the level sensor 153 senses the approaching floating lifting body 152 and transmits the sensing signal to the controller 115. [ Then, the controller 115 determines that the water level rises when the water level sensor 153 continuously sends the detection signal for a predetermined time or more, and immediately applies the power to the switching member 114 so that the restraint of the roller 111 Release. Then, the rotation of the roller 111 is permitted, and the rope is loosened toward the sinker 140 installed on the underwater floor, so that the solar cell assembly 10 naturally rises as the water level rises.

When the water level drops, the tension applied to the mooring rope 130 is weakened. If the tension measured through the second sensing sensor 150b is less than the reference value for a certain period of time or longer, the controller 115 controls the water level It is determined that the voltage is continuously lowered, and the power is applied to the switching member 114 immediately. Then, the restraining pin 114b retracts to release the restrained state so that the roller 111 does not rotate. When the roller 111 is allowed to rotate, the roller 111 wound with the mooring rope 130 twice or three times is allowed to move to the free end state, and the mooring rope 130 moves toward the weight 120 Allow. As a result, the mooring rope 130 can be kept in a tight state without loosening. Thereafter, when the water level is no longer lowered, the tension applied to the mooring rope 130 becomes equal to or higher than a reference level, and the controller 115 determines that the water level has stopped falling and the power is not applied to the switching member 114 So that the roller 111 is constrained by the constraint pin 114b. The roller 111 can be fixed by the weight 120 so that the mooring rope 130 which is already in a taut state can not be loosened so that even when a horizontal load such as a wind load is applied to the solar cell assembly 10, (10) is prevented from being unnecessarily floated or rotated.

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. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

10: solar cell assembly 110: roller assembly
111: roller 112: reduction gear assembly
113: motor 114: switching member
114a: switching body 114b: restraining pin
115: controller 120: weight
150a: first sensing sensor 150b: second sensing sensor
151: Water pipe 152: Floating and lifting body
153: Water level sensor

Claims (6)

A gravity mooring apparatus for a solar photovoltaic power generation apparatus for mooring a solar cell assembly composed of a solar panel, a frame and a floating body for supporting the solar panel on the water surface,
A roller installed in the solar cell assembly;
A motor connected to the roller to provide a driving force;
A mooring rope connected at one end to a sinker installed at the water surface and having a weight at the other end and passing through the roller so that the weight of the weight can be applied to the solar cell assembly;
A switching member selectively restraining the roller from rotating or rotating due to an external force transmitted through the mooring rope;
A first sensing sensor for sensing a rise in the water level;
A second sensing sensor for sensing a descent of the water level;
The first sensing sensor continuously detects the rise of the water level for a predetermined time or the second sensing sensor continuously senses the fall of the water level for a predetermined time or longer, And a controller for controlling the switching member to allow the roller to rotate. 2. The gravity type mooring apparatus for an aquarium photovoltaic apparatus according to claim 1, The apparatus according to claim 1,
A water pipe installed upright on the inside of the float, the water port being opened to open the lower part to communicate with the outside of the float to reflect the water level outside the float while allowing water to flow therein;
A floating lifting body provided in the water tube and moving up and down according to a water level of the inflow water;
And a water level sensor installed at the upper part of the water pipe to sense when the floating lifting body rises above a predetermined height in the water tube and to transmit the sensing signal to the controller. The method according to claim 1,
Wherein the mooring rope is passed through the roller in a state where the roller is wound twice or three times in order to transmit tension through the roller. The method of claim 3,
Wherein the second sensor is provided with a torque sensor for measuring a torque of the roller to measure the tension of the mooring rope. The method according to claim 1,
A motor for providing a driving force to the rollers and a reduction gear assembly for reducing the rotational speed of the motor between the rollers and the motor, wherein the rotary shaft of the roller and the output shaft of the reduction gear assembly are opposed to each other A first flange and a second flange are provided,
Wherein the switching member is provided with a restraining pin for connecting the first flange and the second flange together to rotate together by a forward movement and releasing the connection between the first flange and the second flange by a retreating operation A gravity mooring device for a solar photovoltaic device. An aquarium photovoltaic apparatus characterized by comprising a gravity type mooring device for an aquarium photovoltaic device according to any one of claims 1 to 5.

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