KR101385565B1 - Method and equipment for tidal power generation with pumping function - Google Patents

Abstract

Disclosed are a device for tidal power generation with a pumping function and a method for tidal power generation using the same. The device for tidal power generation with a pumping function and the method for tidal power generation using the same according to the present invention comprise a step of obtaining data on the external water level of the open sea, data on the internal water level of a basin, data on the internal capacity of the basin, data on the number of water turbine modules and floodgates, data on a generation module, and data on a rate of water flow through the floodgates (a); a step of filling the basin with water by opening a floodgate on an influent channel on the basis of each data obtained by the step (a) (b); a step of additionally increasing the internal water level of the basin by making the water of the open sea flow into the basin when the internal water level becomes higher than or identical to the external water level as the basin is filled with water by the step (b) (c); a step of generating power using the generation module when the water level of the basin and the open sea satisfies a power generation level as the internal water level becomes higher than the external water level during the step (c) (d); and a step of carrying out the step (b)-(e) when the internal water level decreases and becomes lower than the power generation level during the step (d) (e). The device for tidal power generation with a pumping function and the method for tidal power generation using the same according to the present invention enable environmentally friendly tidal power generation as reduction in an intertidal zone is minimized. [Reference numerals] (AA) Water level; (BB,HH,NN) Filled with water; (CC,II,QQ) Heightening; (DD,JJ,OO) Taking water; (EE,KK,PP) Power generation; (FF,LL) Lowering; (GG,MM) Standby; (RR) Time; (SS) External water level; (TT) Land water level

Description

Tidal power generating device having a pumping function and its method {METHOD AND EQUIPMENT FOR TIDAL POWER GENERATION WITH PUMPING FUNCTION}

The present invention relates to a tidal power generating apparatus having a pumping function and a method thereof, and more specifically, in the forged knowledge tidal power generation method by adding a separate pumping facility instead of the method of supplying power to the aberration of power generation facilities and The present invention relates to a tidal power generating apparatus having a pumping function capable of improving the amount of power generation, and a method thereof.

In general, tidal power generation is a power generation method that generates electricity by using the rising and falling phenomenon of sea level using tides as a power source. This tidal power generation is a buoyant method that develops using buoyancy received by a certain weight of the floating body, a compressed air method that generates electricity by compressing air in a closed room according to the rising and falling of the tide, and a seawater reservoir, that is, George (축) ) Can be divided into George's development.

As a prior art, various tidal power generation devices such as Korean Patent Publication No. 10-1984-000740 (published date: 1984.02.27), Korean Patent Publication No. 10-2000-0056283 (published date: 2000.09.15) are disclosed. .

However, today's practical tidal power generation method is a ritual, and it installs masonry by installing a dike in a large river or bay where strong tides occur, and develops by using the water level in the offshore and the level difference in the george.

Such tidal power tidal power generation is divided into forging knowledge and demodulation knowledge according to the number of george as shown in FIG.

As for the forging pond flow type, as shown in (a) of FIG. 1, a george is developed to open the water gate at the time of creation, fills the seawater to the high tide level in Georgia, and closes the water gate and waits for the lagoon during the fall. When the water level difference between the offshore tides occurs, the fall-off type development method is developed using the drop, and on the contrary, as shown in (b) of FIG. There are two types of development methods, including the creative development method that develops by using the fall of George and the Offshore, and the appropriate method will be selected according to the sea conditions. It is slightly disadvantageous.

The above-mentioned epoch or creation is called uniflow because it uses only one direction of flow in development. The operation method is unavoidable because the cycle of power generation-> standby-> flooding-> standby cycle is repeated.

However, the forging type single-flow power generation method is the simplest, and the price of power generation equipment is low, so it is the most practical tidal power generation method. In the case of the fall-off power generation system, the water level may be increased by supplying electric power to the aberration even after the water level reaches the high water level. It may be.

On the other hand, the monotonic stream type is to create a single George, but both the creation and the development of the fall, the development time can be extended compared to the monotonic stream type. However, even in this case, the development is intermittent because it must wait until the water level difference between George and the offshore reaches a viable fall. In addition, since the installed aberration generator should be capable of two-way (bidirectional) power generation, the manufacturing cost is also high because the structure becomes more complicated than the single-flow aberration generator.

This type of monotonic bipolar power generation method is known to be more advantageous than the monolithic power when it is used in areas where even a great occurrence occurs. It appears to be advantageous.

In addition, France's Rance tidal power plant, which operates as the only commercial power plant in the world, uses a forged bipolar flow type.

In addition, the demodulating pond connection type uses the water level difference between two georges when one of the tidal power generation targets is capable of forming two georges on the terrain, and makes the other one low lagoon. It is a way to improve the level of George by manipulating the high and low sluice gates according to the tidal changes of the offshore.

In addition, the demodulation paper separation type has a structure in which two forging ponds are operated independently and connected in a system. In other words, one George develops in a single flow during creation, and at the same time fills the other George with seawater, and then develops during fall.

The above-described tidal power generation according to the prior art can be classified into four types according to the theoretical method. However, the tidal power generation system currently being commercialized and applied is forged-flow type or forged-flow double-flow type power generation method. . Lance tidal power plant in France adopts forged bi-stream power generation method, and Sihwa Lake tidal power plant adopts forged-site single flow power generation method.

However, the forging land power generation method that has been practically used in this way, the power generation is intermittent, there is a problem that the utilization rate of the power generation equipment is low.

Republic of Korea Patent Publication No. 10-1984-000740 (published date: 1984.02.27) Republic of Korea Patent Publication No. 10-2000-0056283 (published date: 2000.09.15)

It is an object of the present invention to provide a tidal power generation method and apparatus having a pumping function for improving a power generation facility utilization rate and generation amount by adding a separate pumping facility to the forging knowledge tidal power generation system.

The object is, according to the present invention, a seawall to isolate the sea and George; A sluice gate configured to open and close an inflow channel into which the water of the open sea flows into the george; At least one aberration module connected to a power generation module to rotate and generate power when water filled in the George is drained to the external sea through a discharge channel; And at least one pumping pump for operating if the internal water level of the george is higher than or equal to the external water level of the external sea to forcibly pump water from the external sea to the george to further increase the internal water level of the george. It is achieved by the tidal power generator having a pumping function.

The pump for pumping may be installed inside or outside the water passage passing through the upper region of the seawall at a height not affected by the inner water level of the george.

External water level data of the external sea, internal water level data of the george, content data of the george, data on the number of aberration modules and data on the number of sluices, data on the power generation module, and the hydrological passage flow rate It may further include a control unit for receiving the data for the pump for pumping, the hydro gate, the aberration module and the power generation module.

On the other hand, an object of the present invention is a tidal power generation method using an tidal power generation device having a pumping function according to claim 1 or 2, a) external water level data of the external sea, inner water level data of George, content data of George Receiving data on the number of aberration modules and data on the number of hydrographs, data on the power generation module, and data on the hydrological flow rate; b) comparing the external water level of the external sea with the internal water level of George based on the data of step a), and if the external water level is higher than the internal water level, opening the water gate installed in the inflow passage to fill the George with water. ; c) If the water level is filled in the George by the step b) and the water level is higher than or equal to the external water level, after closing the water gate installed in the inflow passage, the pump for pumping water is operated so that the water of the foreign sea is supplied to the George. Pumping to further increase the water level; d) when the water level is higher than the external water level by the step c), and the water level between George and the sea becomes a power generation level, the water supply module is opened to operate the aberration module to generate power by the power generation module. Making; And e) when the water level is lowered by the step d) to be lower than the power generation level, closing the discharge channel so that the power generation module stops power generation and waits, and then proceeds to steps b) to e). It is achieved by a tidal power generation method using a tidal power generation device having a pumping function, characterized in that it comprises a.

The step b) further includes the step of calculating the amount of water to be filled when water is introduced into the george from the external sea, and the step d) includes the aberration module when power is generated by the power generation module. Calculating a flow rate through the installed discharge water passage and the amount of power generated by the power generation module; Calculating the internal water level of the george based on the amount of water filled in the george, the flow rate through the discharge passage and the amount of power generated by the power generation module; And determining an optimum start head difference between the inner water level and the outer water level.

The step e), if the 365 days through the iterative process of steps b) to e) can be calculated annually, and if less than 365 days can proceed to the step b).

According to the present invention, by adding a separate pumping facility to the forging knowledge tidal power generation method, compared with the existing forging tidal power generation, the utilization rate and power generation can be improved, and the generation time can be increased. Will be.

In addition, it is possible to provide an effect that can improve the eco-friendliness of tidal power generation by preventing landification of the upper tidal flat (tidal flat) compared to the general tidal power operation method.

In addition, it is possible to provide an effect that can promote the development of environmentally friendly tidal power generation by minimizing the reduced intertidal area.

1 is a graph illustrating a forged tidal power generation method according to the prior art.
2 is a schematic plan view for explaining the tidal power generation apparatus according to the present invention.
3 is a schematic cross-sectional view for explaining the tidal power generation apparatus according to the present invention.
Figure 4 is a graph for explaining the tidal power generation apparatus according to the present invention.
5 is a flow chart for explaining the tidal power generation apparatus according to the present invention.
6 and 7 are graphs showing the amount of power generation according to the tidal power generation apparatus according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

In the accompanying drawings, Figure 2 is a schematic plan view for explaining the tidal power generation apparatus according to the present invention, Figure 3 is a schematic cross-sectional view for explaining the tidal power generation apparatus according to the present invention. 4 is a graph for explaining the tidal power generation apparatus according to the present invention.

2 to 4 of the accompanying drawings, the tidal power generation apparatus having a pumping function according to the present invention is configured to perform a pumping single-flow tidal power generation, the seawater to isolate the sea 20 and the George 10 30 and the water gate 52 configured to open and close the inflow passage 50 through which the water of the outer sea 20 flows into George 10, and the water filled in George 10, At least one aberration module 62 and George 10 connected to a power generation module (not shown) to be rotated when power is discharged to the external sea through the discharge channel 60 so as to generate power, and provided in the water repellent 30. When the internal water level 12 is lower than the external water level 22 of the outer sea 20 is operated to include at least one pumping pump 40 for forcibly pumping water of the outer sea 20 to George 10 It is composed.

This will be described more specifically.

The open sea 20 and the george 10 are separated and isolated by the seawall 30.

The sluice gate 52 is configured to be installed in the inflow passage 50 formed in the water repellent 30 so that water of the outer sea 20 flows into the george 10, and is configured to open or close the inflow passage 50. The number of the sluice gate 52 can be composed of a plurality.

The discharge channel 60 is formed in the water repellent 30 so that the water filled in the George 10 is discharged to the external sea 20, the at least one aberration module 62 is installed in the discharge channel (60). The aberration module 62 is connected to the power generation module 70, is configured to rotate by the water passing through the discharge passage 60. The power generation module 70 is connected to the aberration module 62 or is installed in the aberration module 62 and configured to generate power by the rotation of the aberration module 62.

At this time, the discharge channel 60 may be provided with a separate water gate. This discharge channel waterway operates to open only when the internal water level 12 becomes a power generation level so that the water in George 10 is discharged for power generation.

Pumping pump 40 is selectively operated to pump water from the open sea 20 to George 10, the upper part of the embankment 30 of a height that is not affected by the inner water level 12 of George 10 It is installed inside or outside the water passage 42 passing through the area. At least one pumping pump 40 is installed.

On the other hand, the tidal power generation apparatus according to the present invention includes a control unit 80 for controlling each movable component. The control unit 80 receives data about the external water level 22 of the external sea 20 from a tide detection device (not shown) installed in the external sea 20, and the water level detecting device installed in the George 10 ( Data of the water level 12, the data of the number of the aberration module 62, the data of the number of the aberration modules 62, the data of the number of the sluices 52, and the power generation module. It is configured to control the pumping pump 40, the water gate 52, the aberration module 62 and the power generation module 70 by receiving the data about the 70 and the data about the flow through the water gate. In addition, the controller 80 is configured to calculate the annual power generation amount based on the amount of water flowing into the aberration passing flow rate and power generation, the internal water level 12, the George 10 according to the present invention.

A method of generating power using the pumped single-flow tidal power generation apparatus according to the present invention configured as described above will be described.

As shown in Figure 2 to 5, in order to generate power using the pumping single-flow tidal power generation apparatus according to the present invention, first, data on the water level 22 of the open sea 20, the water level of the George 10 The data for (12), the content data of George 10, the data for the number of aberration modules 62 and the data for the number of sluices 52, the data for the power generation module 70 and the hydrological passage flow rate. Data is input to the controller 80. Receiving a variety of data in this way, on the basis of this data to determine the opening and closing time of the water gate 52, the operation of the aberration module 62 and the operation of the power generation module 70 and the operating time of the pump pump 40, To calculate the annual power generation. This step is hereinafter referred to as the waiting step.

Subsequently, the water level 22 of the seawater 29 and the water level 12 of George 10 are compared with each other based on the data input in the aforementioned data input step, so that the water level 22 is the water level 12. If it is higher, the water gate 52 installed in the inflow passage 50 is opened so that the water of the external sea 20 flows into the George 10 and is filled. This step is hereinafter referred to as the appendix step.

If the water level is filled in the George 10 by the above-mentioned filling step and the inner water level 12 is higher than or equal to the outer water level 22, after closing the water gate 52 installed in the inflow channel 50, the pump 40 for pumping water ) To increase the internal water level 12 by pumping water from the open sea 20 to George 10. This step is hereinafter referred to as a pumping step.

That is, the water of the open sea 20 is additionally pumped to George 10 to raise the internal water level 12 so as to generate more than two heads of power.

At this time, when the head water difference is greater than or equal to the minimum power head difference, the pumping pump 40 may not be operated, and the discharge water channel 60 may be opened to proceed to the power generation stage in which power generation is performed.

And when the water from the offshore sea 20 is introduced into George (10) in the pumping step, the amount of water to be filled is calculated. This is for calculating the internal water level 12 based on such data.

When the internal water level 12 is higher than the external water level 22 by the aforementioned pumping step, and the water level (water head difference) between the George 10 and the external sea 20 becomes a power level, the discharge water channel 60 is opened. As the aberration module 62 is operated, power is generated by the power generation module 70 connected to the aberration module 62. This stage is referred to as development stage below.

On the other hand, when the power generation is generated by the power generation module 70, the flow rate of the discharge channel 60, the aberration module 62 is installed, the power generation amount by the power generation module 70 is calculated, and filled in the George 10 The internal water level 12 of the George 10 is calculated based on the amount of water, the flow rate of the discharge passage 60 and the amount of power generated by the power generation module 70. And based on this, the optimum start head difference of the inner water level 12 and the outer water level 22 is determined. That is, after determining the optimum water head difference that can be generated, the generation of the power is achieved by opening the drainage channel 60 based on this.

When the water level 12 of George 10 is lowered to a power generation level as the above-described power generation step progresses, the discharge water channel 60 is closed so that the power generation module 70 stops power generation and waits. Reenter one standby, appendage, and development phase.

At this time, the controller 80 calculates an annual power generation amount greater than or equal to 365 days through a repeating process of the standby stage, the pumping or filling stage, and the power generation stage, and controls to proceed to the standby stage again when the scale is small. In other words, if it is 365 days (one year) through the repetition process of the standby phase, the pumping or appending phase, and the power generation stage, the annual power generation is calculated, and if it is less than 365 days (one year), the control proceeds to the standby stage again. .

The amount of power generated according to the tidal power generation method described above is the same as the graph shown in FIGS. 6 and 7. In the graph, the solid black line represents the water level of the open sea, the solid blue line represents George's water level, and the graph below shows the power generation.

FIG. 6 shows that 100 pumping pumps 40 having a lifting capacity of 27.78 m 3 / s are installed, and the amount of power generation is increased by 4% and the generation time is 13% compared with the case where no pump is installed.

7 is a case where 300 pumping pumps 40 having a pumping capacity of 27.78㎥ / s, the generation amount was 17%, the generation time was increased by 16% compared to the case without the pump .

 In this way, by installing the pump 40 for pumping up and increasing the head difference between the external sea 20 and the George 10, the amount of power generation or the time of power generation can be increased.

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 embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10: George 12: water level
20: offshore sea 22: water level
30: breakwater 40: pump for pumping
42: aqueduct 50: influent channel
52: hydrologic 60: discharge water
62: aberration module 70: power generation module
80: control unit

Claims (6)

Repellents to isolate the open sea and George;
A sluice gate configured to open and close an inflow channel into which the water of the open sea flows into the george;
At least one aberration module connected to a power generation module to rotate and generate power when water filled in the George is drained to the external sea through a discharge channel; And
At least one pumping pump for actuating when the inner water level of the george is higher than or equal to the outer water level of the external sea to forcibly pump water of the external sea to the george to further increase the inner water level of the george;
The pump for pumping,
It is installed inside or outside of the water passage passing through the upper region of the repellent at a height not affected by the inner water level of the George,
External water level data of the external sea, internal water level data of the george, content data of the george, data on the number of aberration modules and data on the number of sluices, data on the power generation module, and the hydrological passage flow rate Receiving data for the pump for pumping, and further comprising a control unit for controlling the water gate, the aberration module and the power generation module,
Tidal power generator with pumping function. delete delete A tidal power generation method using a tidal power generation device having a pumping function according to claim 1,
a) receiving the water level data of the offshore water, the water level data of George, the contents data of George, the data on the number of aberration modules, the data on the number of sluices, the data on power generation modules, and the data on the hydrological flow rates; step;
b) comparing the external water level of the external sea with the internal water level of George based on the data of step a), and if the external water level is higher than the internal water level, opening the water gate installed in the inflow passage to fill the George with water. ;
c) If the water level is filled in the George by the step b) and the water level is higher than or equal to the external water level, after closing the water gate installed in the inflow passage, the pump for pumping water is operated so that the water of the foreign sea is supplied to the George. Pumping to further increase the water level;
d) when the water level is higher than the external water level by the step c), and the water level between George and the sea becomes a power generation level, the water supply module is opened to operate the aberration module to generate power by the power generation module. Making;
e) When the water level is lowered by the step d) to be less than the power generation level, closing the discharge channel to stop the power generation module and wait, and then proceed to the steps b) to e) Including,
The step b)
Calculating the amount of water to be filled when water is introduced into and filled from the external sea,
d) step,
Calculating power generation amount by the power generation module and a flow rate through the discharge channel in which the aberration module is installed when power generation is performed by the power generation module;
Calculating the internal water level of the george based on the amount of water filled in the george, the flow rate through the discharge passage and the amount of power generated by the power generation module; And
Determining the optimum start head difference between the inner water level and the outer water level;
The step e)
When 365 days through the iterative process of steps b) to e), the annual power generation amount is calculated, and if it is small, proceeding to step b),
Tidal power generation method using tidal power generation device having a pumping function.

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