KR20130109413A - Hydraulic wind power generation device and its method - Google Patents

Abstract

PURPOSE: A hydrodynamic wind power generator and a method thereof are provided to reduce the loss of energy and operate the hydraulic motor unit in the high-efficiency area, thereby increasing the generation efficiency. CONSTITUTION: A hydrodynamic wind power generator includes a rotating unit (100), a fluid supplying unit (200), a hydrodynamic motor unit (300), and a generation unit (400). The rotating unit has a blade (110). The hydrodynamic motor unit is connected to the rotating unit, and has a cylinder and a piston. The hydrodynamic motor unit is connected to the fluid supplying unit. The generating part is connected to the hydrodynamic motor unit. [Reference numerals] (200) Fluid supplying unit; (300) Hydrodynamic motor unit; (310) Fluid storage unit; (320) Pump; (400) Generation unit; (600) Axial pressure unit; (610) Pressure detecting sensor; (620) Flow sensor; (700a) Control unit; (800) Unit for controlling the angel of a swash plate; (990) Anemometer

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hydraulic power generation apparatus,

The present invention relates to a hydraulic type wind power generation apparatus and method thereof, and more particularly, to a hydraulic type wind power generation apparatus and method thereof, And more particularly, to a hydraulic type wind power generation apparatus and method capable of raising power generation efficiency.

Generally, a wind turbine is a machine that rotates a rotor by using the aerodynamic characteristic of the kinetic energy of the air flow to convert it into mechanical energy and obtain electricity by the mechanical energy.

The wind turbine generator is divided into a horizontal type and a vertical type according to the direction of the rotating shaft relative to the ground. The main components include a rotor composed of a blade and a hub, A gear box, a generator for controlling various safety devices, a hydraulic brake device, a power control device, and a tower.

On the other hand, in recent years, a hydraulic type wind turbine that uses a fluid as an energy transfer medium in the process of generating electricity from mechanical energy obtained by rotating a rotor is known

Here, in the conventional hydraulic type wind turbine generator, an accelerator is installed between the hydraulic pump and the blade for the purpose of increasing the flow rate through the hydraulic pump.

However, the accelerator has a disadvantage in that it is expensive to increase the manufacturing cost of the wind power generator, and also has a problem that the power generation efficiency is lowered because energy loss is generated through the accelerator.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to solve the following problems.

As one aspect, the present invention provides a hydraulic type wind turbine generator capable of supplying a large amount of fluid through a cylinder and a piston, thereby enabling a reduction in energy loss due to the elimination of a booster, thereby increasing power generation efficiency. .

Another aspect of the present invention is to provide a hydraulic type wind power generator capable of providing a predetermined range of hydraulic pressure after accumulation of fluid pressure and capable of generating a constant output during power generation, and a method thereof.

The solution to the problem of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

A hydraulic type wind power generation apparatus according to an embodiment of the present invention includes a rotating part rotated by wind with a blade and a cylinder and a piston connected to the rotating part to drive the piston by the rotation of the rotating part, A hydraulic motor unit connected to the fluid supply unit and rotated by a pressure of a fluid supplied from the fluid supply unit, and a control unit connected to the hydraulic motor unit, for generating electric power in accordance with rotation of the hydraulic motor unit, .

In order to supply a constant hydraulic pressure to the hydraulic motor unit among the hydraulic wind power generators according to an embodiment of the present invention, the fluid supply units are provided in a plurality of radial directions, and one side of the fluid supply unit is connected to the rotation unit And the other side can be connected to the hydraulic motor part through one flow path.

The hydraulic wind power generator according to an embodiment of the present invention further includes a connection plate having an opening formed at the center thereof and connected to the plurality of fluid supply units, And an end portion of the drive shaft and an end portion of the drive shaft are connected by a connection shaft formed in a vertical direction, and the end portion of the drive shaft and the end portion of the drive shaft are connected to each other by a connection shaft, The center of the connecting plate may be arranged to rotate in a circle having a radius of a distance between the rotation axis and the driving axis.

The hydraulic type wind power generator according to an embodiment of the present invention may include a rotating unit and a tower having the fluid supply unit. The plurality of towers are connected to a plurality of fluid supply units installed in the towers, And a pressure accumulating unit for supplying a predetermined pressure fluid to the hydraulic motor unit after storing the pressure of the fluid supplied from each of the fluid supply units.

In the hydraulic type wind power generation apparatus according to an embodiment of the present invention, a plurality of hydraulic motor units may be provided, and hydraulic motors having different capacities may be provided in the hydraulic motor units, respectively, and may be connected to the accumulation units.

Further, the hydraulic wind power generation apparatus according to an embodiment of the present invention may further include a control unit that controls a hydraulic motor having a relatively high energy efficiency according to a pressure accumulated in the accumulation unit among the hydraulic motors having different capacities .

In the hydraulic type wind power generator according to an embodiment of the present invention, a pressure sensor is installed in the accumulation part, a flow rate sensor is installed in the accumulation part and the hydraulic motor part, and the pressure And the water level value obtained by converting the pressure value measured by the pressure sensor is a water level value set as an operation interval according to the setting efficiency And a control unit for controlling the operation of stopping the operation of the generator when the detected value is equal to or less than the predetermined value.

In addition, in the hydraulic type wind power generator according to an embodiment of the present invention, a swash plate angle adjusting unit capable of adjusting a flow rate to control the rotation of the hydraulic motor unit is installed in the hydraulic motor unit, Adjustment may be provided.

A hydraulic type wind power generation method according to an embodiment of the present invention includes a step of forming a hydraulic pressure by driving a piston of a fluid supply unit in accordance with rotation of a rotary unit, the fluid supply unit including a cylinder and a piston, A step of rotating the hydraulic motor unit by the pressure of the fluid supplied from the fluid supply unit, and a step of generating electricity in the generator in accordance with the rotation of the hydraulic motor unit.

According to another aspect of the present invention, there is provided a hydraulic-type wind power generation system, comprising: a plurality of fluid supply units connected to a fluid supply unit, the fluid supply unit being configured to store a fluid supplied from each of the fluid supply units; The method comprising the steps of:

In the hydraulic type wind power generation method according to an embodiment of the present invention, in order to supply a certain hydraulic pressure to the hydraulic motor unit, the fluid supply units are provided in a plurality of radial directions, one side of the fluid supply unit is connected to the rotation unit And the other side can be connected to the hydraulic motor section.

A hydraulic-type wind power generator and a method thereof according to an embodiment of the present invention have at least some of the following effects.

The hydraulic type wind power generation apparatus and method according to an embodiment of the present invention can supply a large amount of fluid through a fluid supply unit including a cylinder and a piston, thereby eliminating the gearbox and reducing energy loss, The efficiency can be increased.

Further, the hydraulic wind power generation apparatus and method according to an embodiment of the present invention can operate in a high efficiency region of a hydraulic motor-generator since a predetermined range of hydraulic pressure can be provided to a hydraulic motor after accumulating fluid pressure through an accumulator Efficiency can be expected to be improved, and a constant output can be generated during power generation, thereby improving electric quality.

In addition, the hydraulic wind power generation apparatus and method according to an embodiment of the present invention can reduce the installation cost by eliminating the accelerator, and there is no fear of failure of the speed reducer, thereby facilitating maintenance.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 and 2 are views showing a hydraulic wind power generator according to an embodiment of the present invention.
FIGS. 3 to 5 are views showing an operating state in which a fluid supply portion of a hydraulic wind power generator according to an embodiment of the present invention is radially disposed and operated. FIG.
6 is a view showing operation control of a hydraulic motor according to efficiency in a hydraulic wind power generator according to an embodiment of the present invention.

As used herein, the singular forms "a", "an," "an," "include," "include," and the like are to be construed as including plural referents unless the context clearly dictates otherwise. Means the presence of, or a combination of, one or more other features, numbers, steps, operations, components, parts, or combinations thereof, And the like.

Hereinafter, the hydraulic wind power generator 1000 and the method thereof will be described in detail with reference to the drawings.

Referring to FIG. 1, a hydraulic power generating apparatus 1000 according to an embodiment of the present invention includes a rotating unit 100 having a blade 110 and rotated by wind.

The hydraulic type wind power generation apparatus 1000 according to an embodiment of the present invention is connected to the rotation unit 100 and includes a cylinder 210 and a piston 220 to rotate the piston 100 in accordance with rotation of the rotation unit 100. [ And a fluid supply unit 200 for supplying fluid by driving the fluid supply unit 220 (see FIGS. 3 to 5).

Hereinafter, the cylinder 210 and the piston 220 will be described in detail.

The hydraulic type wind power generation apparatus 1000 according to an embodiment of the present invention includes a hydraulic motor unit 300 connected to the fluid supply unit 200 and rotated by a pressure of fluid supplied from the fluid supply unit 200, .

The hydraulic type wind power generation apparatus 1000 according to an embodiment of the present invention includes a power generation unit 400 connected to the hydraulic motor unit 300 and generating electricity according to rotation of the hydraulic motor unit 300 .

The hydraulic type wind turbine generator 1000 according to an embodiment of the present invention may further include a connection plate having an opening formed at the center thereof to connect the plurality of fluid supply units to each other.

Hereinafter, each configuration will be described in detail.

Referring to FIG. 1, the rotation unit 100 includes a blade 110, and is provided to rotate by wind.

The rotary part 100 includes the blade 110 and the blade 110 is provided to rotate by the wind so that the rotational energy generated through the blade 110 is transmitted to the rotary part 100, (Not shown).

1 and 3, the fluid supply unit 200 is connected to the rotation unit 100, and the fluid supply unit 200 includes a cylinder 210 and a piston 220, The piston 220 is driven to rotate by the rotation of the piston 220

1, one side of the fluid supply unit 200 may be connected to the hydraulic motor unit 300, and the other side of the fluid supply unit 200 may be connected to the fluid storage unit 310.

The fluid discharged from the fluid supply part 200 is stored in the fluid storage part 310 after the hydraulic motor part 300 is driven and the fluid stored in the fluid storage part 310 is discharged by the pump 320 And then introduced into the fluid supply unit 200 again.

That is, the fluid supplied from the fluid storage part 310 flows into the cylinder 210 of the fluid supply part 200 by the energy generated from the rotation of the blade 110 and flows into the piston 210 220).

The fluid introduced into the cylinder 210 of the fluid supply unit 200 flows out of the cylinder 210 by driving the piston 220 and is supplied to the hydraulic motor unit 300 connected to the fluid supply unit 200, As shown in Fig.

In the conventional hydraulic wind power generation, a hydraulic pump without a cylinder 210 is used. In the case of such a hydraulic pump, a speed increasing device is used because the supply capacity of the fluid is relatively small.

However, the hydraulic wind power generation apparatus 1000 and method thereof according to an embodiment of the present invention use a cylinder 210 having a piston 220 as a fluid supply unit 200 so that a relatively large capacity fluid Can be supplied to the hydraulic motor unit 300, so that stable power generation is possible.

In addition, the hydraulic wind power generation apparatus 1000 and method according to an embodiment of the present invention can reduce the energy loss generated in the boosters by eliminating the accelerator, thereby increasing the power generation efficiency.

In addition, the installation cost for producing the accelerator from the suppressor exclusion is reduced, and there is no fear of failure of the speed reducer, so that the maintenance is easy.

The plurality of fluid supply units 200 may be arranged radially.

3 to 5, the cylinder 210 and the piston 220 provided in the fluid supply part 200 are provided in plural to supply a predetermined hydraulic pressure to the hydraulic motor part 300, One side of the fluid supply part 200 may be connected to the rotary part 100 and the other side may be connected to the hydraulic motor part 300 through one flow path.

In addition, the plurality of fluid supply parts 200 may be arranged radially so as to have an interval of 120 degrees from each other. However, the number and spacing of the fluid supply units 200 are not limited thereto.

The cylinder 210 and the piston 220 provided in the plurality of fluid supply units 200 may be connected to the connection plate 500 having the opening 510 formed at the center thereof.

The cylinder 210 of the fluid supply unit 200 may be connected to the flow path 212 and the flow path 212 may be connected to the accumulation unit 600.

A driving shaft 520 formed in a horizontal direction is coupled to the opening 510 of the connection plate 500 and a rotary shaft 120 formed in a horizontal direction spaced apart from the driving shaft 520 by a predetermined distance R The end of the driving shaft 520 and the end of the rotating shaft 120 may be connected to each other by a connecting shaft 530 formed in a vertical direction.

According to the rotation of the rotation unit 100, the center of the connection plate 500 may be arranged to rotate in a circle having a radius of a distance between the rotation axis 120 and the driving axis 520.

That is, referring to FIG. 3, the blade 110 is coupled to the rotating shaft 120 and rotates together with the rotating shaft 120.

A connecting shaft 530 extending in the vertical direction is connected to an end of the rotating shaft 120. The connecting shaft 530 rotates in conjunction with the rotation of the rotating shaft 120. [

A driving shaft 520 is connected to an end of the connecting shaft 530 and rotates in conjunction with rotation of the connecting shaft 530.

That is, when the rotation shaft 120 rotates, the driving shaft 520 rotates while forming a circle having a radius R, which is the spacing distance R between the rotation shaft 120 and the driving shaft 520.

Since the driving shaft 520 is connected to the opening 510 formed at the center of the connecting plate 500, when the driving shaft 520 is rotated, the connecting plate 500 is also connected to the rotating shaft 120, And rotates while drawing a circle having the radius R of the spaced apart distance R of the rotor 520.

The hydraulic wind power generation apparatus 1000 and the method according to the embodiment of the present invention can supply a predetermined flow rate to the hydraulic motor by arranging the fluid supply part 200 in a radial direction.

When the fluid is supplied to the hydraulic motor unit 300 through one cylinder 210, the supplied fluid changes with time.

That is, when the cylinder 210 is compressed, fluid introduced into the cylinder 210 can be supplied to the hydraulic motor unit 300. However, when the cylinder 210 is expanded, The supply of the fluid to the hydraulic motor unit 300 is temporarily stopped.

Therefore, a change occurs in the amount of the fluid supplied over time, such as an alternating current whose magnitude and phase change with time.

However, the hydraulic type wind power generation apparatus 1000 and the method thereof according to an embodiment of the present invention are arranged such that a plurality of fluid supply units 200 are disposed and radially disposed, whereby the fluid supplied to the hydraulic motor unit 300 The amount can be made constant.

3 to 5, the flow rates of the respective fluids flowing out to the plurality of cylinders 210 vary with time, but the total flow of fluids flowing out of the plurality of cylinders 210 is maintained constant .

For example, when the connection plate 500 is moved clockwise at the position shown in FIG. 3, the piston 220 is expanded in the cylinder X, so that the first channel 212 (a ), And the first valve 214 (a) is opened to allow the fluid to flow into the cylinder X. As a result, That is, the flow rate flowing out through the cylinder X is zero.

In the cylinder Y, the second valve 214 (b) is closed and the fluid flows out through the second flow path 212 (b) with the piston 220 significantly compressed. Here, it is assumed that the flow rate flowing out through the cylinder Y is 0.8.

In the cylinder Z, the third valve 214 (c) is closed while the piston 220 starts to be compressed, and the fluid starts to flow out through the third flow path 212 (c). Here, it is assumed that the flow rate flowing out through the cylinder Z is 0.2.

In the case of FIG. 3, the total flow amount flowing through the fourth flow path 212 (d), which flows out through the three cylinders (X, Y, Z) and is provided as one flow path,

Here, ① of the first flow path 212 (a) is connected to ① of the fourth flow path 212 (d), and ② of the second flow path 212 (b) And the third of the third flow path 212 (c) may be connected to the third of the fourth flow path 212 (d). This connection structure is also common to Fig. 4 and Fig.

When the connecting plate 500 is moved clockwise at the position shown in FIG. 4, the first valve 214 (a) is closed in a state where the compression of the piston 220 is started in the cylinder X , The fluid begins to flow out through the first flow path 212 (a). Here, it is assumed that the flow rate flowing out through the cylinder X is 0.2.

Since the piston 220 is expanded in the cylinder Y, the fluid does not flow out through the second flow path 212 (b) and the second valve 214 (b) Respectively. That is, the flow rate flowing out through the cylinder Y is zero.

In the cylinder Z, the third valve 214 (c) is closed and the fluid is flowing out through the third flow path 212 (c) with the piston 220 significantly compressed. Here, it is assumed that the flow rate flowing out through the cylinder Z is 0.8.

4, the total flow amount flowing through the fourth flow path 212 (d), which flows out through the three cylinders (X, Y, Z) and is provided as one flow path, corresponds to one.

When the connecting plate 500 is moved clockwise at the position shown in FIG. 5, the first valve 214 (a) is in a state in which the compression of the piston 220 is considerably advanced in the cylinder X, And the fluid is flowing out through the first flow path 212 (a). Here, it is assumed that the flow rate flowing out through the cylinder X is 0.8.

Further, in the cylinder Y, the second valve 214 (b) is closed and the fluid starts to flow out through the second flow path 212 (b) in a state where the compression of the piston 220 is started. Here, it is assumed that the flow rate flowing out through the cylinder Y is 0.2.

In the cylinder Z, since the piston 220 is inflated, the fluid does not flow out through the third flow path 212 (c), and the third valve 214 (c) Respectively. That is, the flow rate flowing out through the cylinder Z is zero.

5, the total flow amount flowing through the fourth flow path 212 (d), which flows out through the three cylinders (X, Y, Z) and is provided as one flow path, corresponds to one.

3 through 5, the flow rate of the refrigerant flowing out through each of the cylinders 210 of the plurality of cylinders 210 differs from each other, but flows out through the three cylinders X, Y and Z, Lt; RTI ID = 0.0 > 1 < / RTI >

That is, the hydraulic wind power generation apparatus 1000 according to an embodiment of the present invention and the method thereof are arranged such that a plurality of cylinders 210 are arranged in a radial direction So that the total flow rate of the fluid can be maintained constant.

From this, it is possible to supply a certain amount of fluid to the hydraulic motor unit 300, and also to generate a constant output power.

The first valve to the third valve may be provided as a check valve configured to flow only in one direction to prevent backflow of the liquid.

Referring to FIG. 1, the hydraulic motor unit 300 is connected to the fluid supply unit 200 and is rotated by the pressure of the fluid supplied from the fluid supply unit 200.

Here, since the hydraulic motor unit 300 including the hydraulic motor is connected to the power generation unit 400 including the generator, the power generation unit 400 generates electricity according to the rotation of the hydraulic motor unit 300 .

1, a hydraulic type wind power generator 1000 and a method thereof according to an embodiment of the present invention may include a tower 900 in which the rotary part 100 and the fluid supply part 200 are installed, The tower 900 may be provided in plurality. Here, an anemometer 990 may be installed in the tower 900.

1, the accumulation unit 600 is connected to a plurality of fluid supply units 200 installed in the towers 900, and stores the fluid supplied from each of the fluid supply units 200 And may be provided to supply the fluid to the hydraulic motor unit 300 at a predetermined pressure.

When the rotation speed of the blades is irregular according to the wind speed, there is a problem that the output of the conventional wind power generator also becomes irregular.

However, the hydraulic wind power generation apparatus 1000 and the method thereof according to the embodiment of the present invention are provided with the accumulation unit 600, and the accumulation unit 600 includes a fluid supply unit 200 And then supplies a constant hydraulic pressure to the hydraulic motor unit 300 connected to the one side of the accumulation unit 600 so that a constant output from the power generation unit 400 connected to the hydraulic motor unit 300 Is generated.

From this, it is possible not only to supply a certain amount of fluid to the hydraulic motor unit 300 through the accumulation unit 600, but also to minimize the impact applied to the hydraulic system by the fluid flow, thereby improving the system durability.

1, a pressure sensor 610 may be installed in the accumulator 600 and a flow sensor 620 may be installed in the hydraulic motor 300.

The control unit 700a operates the generator when the water level value obtained by converting the pressure value measured by the pressure sensing sensor is equal to or higher than the water level value set to the operation interval according to the setting efficiency, And the operation of stopping the operation of the generator when the water level value obtained by conversion is equal to or lower than the water level value set as the operation period according to the setting efficiency.

The swash plate angle control unit 800 is provided in the hydraulic motor unit 300 to control the flow rate of the hydraulic motor unit 300 to control the rotation of the hydraulic motor unit 300, (Not shown).

The control unit 700a receives data on the pressure P of the accumulation unit sensed by the pressure sensing sensor 610 installed in the accumulation unit 600 and sensed by the flow sensor 620 installed in the hydraulic motor unit 300 And receives and stores data on the flow rate (Q).

The controller 700a may be configured to estimate the fluid level L from the pressure P of the accumulation portion.

The efficiency ηmg of the hydraulic motor unit 300 to the power generation unit 400 corresponds to a value obtained by multiplying the efficiency ηm of the hydraulic motor unit 300 by the efficiency ηg of the power generation unit 400 .

6, the hydraulic motor unit 300 is set to a stop section in a period in which the efficiency? Mg of the power generation unit 400 is lower than the predetermined efficiency? Mg1, The operating section in which the hydraulic motor section 300 is operated can be set in a section in which the efficiency? Mg of the motor section 300 -the power generation section 400 is higher than the predetermined efficiency? Mg1 and lower than the maximum efficiency? Mgmax have.

Here, the predetermined efficiency? Mg1 is the efficiency at the point (b) of the forest and corresponds to a constant, and can be arbitrarily set in consideration of various conditions.

If the pressure P of the accumulation portion is equal to or higher than the pressure corresponding to the maximum capacity of the accumulation portion 600, the control portion sends an operation start signal to the swash plate angle regulator 800, The swash plate angle may be gradually opened according to a signal.

값이 도 6에서의 a 지점에 대응되는 값에 도달한 경우, 사판각을 유지하는 신호를 상기 사판각도 조절부(800)로 보내게 된다.The control unit 700a calculates data on the pressure P of the accumulation unit and data on the flow rate Q, The swash plate angle is kept open until the value becomes a value corresponding to the point " a " in Fig. 6,

When the value reaches the value corresponding to the point a in FIG. 6, a signal for maintaining the swash plate angle is sent to the swash plate angle adjusting unit 800.

값이 도 6에서의 b 지점에 대응되는 값 이하로 낮아지거나 상기 축압부(600) 가용 용량의 최저가 되는 수위에 대응되는 압력 이하가 되면 상기 사판각도 조절부(800)로 운전정지 신호를 보내게 되며, 상기 사판각도 조절부(800)는 사판각도를 0도로 조절하여 상기 유압모터부(300)의 가동을 정지시킨다.Here, the controller 700a

When the value becomes lower than or equal to the value corresponding to the point b in FIG. 6 or equal to or lower than the pressure corresponding to the water level at which the available capacity of the accumulation unit 600 becomes the lowest, the swash plate angle control unit 800 sends an operation stop signal And the swash plate angle adjusting unit 800 stops the operation of the hydraulic motor unit 300 by adjusting the swash plate angle to 0 degree.

By controlling the swash plate angle adjusting unit 800 according to this method, the efficiency of the hydraulic motor-generator can be improved. As a result, not only the utilization rate can be improved, but also the hydraulic energy can be stably changed to electric power, There is an effect that quality can be improved.

The control unit 700a controls the flow rate Q by controlling the swash plate angle adjusting unit 800 installed in the hydraulic motor unit 300. [ That is, when the swash plate angle is gradually increased, the flow rate Q flowing into the hydraulic motor unit 300 also increases, so that the rotation speed of the hydraulic motor unit 300 increases.

When the swash plate angle is gradually decreased, the flow rate Q flowing into the hydraulic motor unit 300 also decreases, and the rotational speed of the hydraulic motor unit 300 is slowed down.

That is, when the wind speed is irregular, when the wind speed is high, a portion of the fluid is used to generate electricity, the remaining fluid is stored in the accumulation portion 600 to accumulate the hydraulic pressure, and when the wind speed is low, So that it is possible not only to obtain a constant power output, but also to improve power generation efficiency.

Referring to FIG. 2, a plurality of hydraulic motor units 300 may be provided, and hydraulic motors 300 having different capacities may be provided in the respective hydraulic motor units 300, have.

In other words, when the wind speed varies with time, since the stored amount of the fluid stored in the accumulation unit 600 is also different from each other, the most efficient hydraulic motor unit 300 As shown in Fig.

For example, if there are four hydraulic motors provided in the hydraulic motor unit 300, and the respective capacities of the hydraulic motors are 6.25%, 12.5%, 25%, and 50% of the total capacity, A hydraulic motor of 6.25% capacity is driven, and when the wind speed is strongest, it is possible to drive a hydraulic motor in which a small capacity is sequentially selected from a large capacity.

The controller 700b may further include a controller 700b for controlling the hydraulic motor having a relatively high energy efficiency according to the pressure accumulated in the accumulator 600 among the hydraulic motors having different capacities.

However, the number and the capacity of the hydraulic motors are only examples, and the number and the capacities are not limited thereto.

Thereby, the maximum power generation efficiency can be obtained at the wind speed.

As described above, the controller 700a controls the stop or operation of the generator in accordance with the pressure and the flow rate of the accumulator 600, The control unit 700b for driving the motor unit 300 may be provided as one control unit or as a separate control unit.

Hereinafter, a hydraulic wind power generation method according to an embodiment of the present invention will be described. However, as described above, the description of the parts that are common to the hydraulic wind power system is replaced with the above description.

First, in the fluid supply part 200 connected to the rotary part 100 provided with the blades 110 and equipped with the cylinder 210 and the piston 220, the piston 210 of the fluid supply part 200, in accordance with the rotation of the rotary part 100, (220) is driven to form an oil pressure.

Next, the hydraulic motor unit 300 is rotated by the pressure of the fluid supplied from the fluid supply unit 200, and electricity is generated in the generator according to the rotation of the hydraulic motor unit 300.

Here, the accumulation unit 600 connected to the plurality of fluid supply units 200 and storing the fluid supplied from each of the fluid supply units 200 provides a predetermined pressure fluid to the hydraulic motor unit 300 The hydraulic motor unit 300 may be rotated.

In order to supply a predetermined hydraulic pressure to the hydraulic motor unit 300, a plurality of the fluid supply units 200 are disposed radially, one side of the fluid supply unit 200 is connected to the rotation unit 100, And the other side may be connected to the hydraulic motor unit 300 through a fourth flow path 212 (d) provided with one flow path.

It is to be understood that within the scope of the technical idea included in the specification and drawings of the present invention, the description of the present invention, the present embodiment, and the drawings attached hereto are only a part of the technical idea included in the present invention, The present invention is not limited to the above-described embodiments, and various modifications and changes may be made without departing from the scope of the present invention.

100: rotation part 110: blade
120: rotation shaft 200: fluid supply part
210: cylinder 220: piston
300: Hydraulic motor part 310: Fluid storage part
400: power generation section 500: connection plate
510: opening 520: drive shaft
530: connection shaft 600:
610: Pressure sensor 620: Flow sensor
700a, 700b: control unit 800: swash plate angle adjusting unit
900: Tower 1000: Hydraulic wind power generator

Claims (11)

A rotating part provided with a blade and rotated by wind;
A fluid supply unit connected to the rotary unit, the fluid supply unit including a cylinder and a piston to supply fluid by driving the piston in accordance with rotation of the rotary unit;
A hydraulic motor part connected to the fluid supply part and rotated by a pressure of fluid supplied from the fluid supply part; And
A power generator connected to the hydraulic motor and generating electricity according to rotation of the hydraulic motor;
And a hydraulic power source. The method according to claim 1,
In order to supply a constant hydraulic pressure to the hydraulic motor unit, a plurality of the fluid supply units are disposed radially, one side of the fluid supply unit is connected to the rotation unit, and the other side is connected to the hydraulic motor unit through one flow path Wherein the hydraulic system is a hydraulic system. 3. The method of claim 2,
And a connection plate having an opening formed at the center thereof to connect the plurality of fluid supply portions, respectively,
A driving shaft formed in a horizontal direction is coupled to an opening of the connecting plate, a rotating shaft formed in a horizontal direction spaced apart from the driving shaft is coupled to the blade, and an end of the driving shaft and an end of the rotating shaft are formed in a vertical direction The connection shaft being connected to the connection shaft,
Wherein the center of the connecting plate rotates in a circle having a radius of a distance between the rotation shaft and the drive shaft according to the rotation of the rotation unit. 4. The method according to any one of claims 1 to 3,
And a tower provided with the rotation part and the fluid supply part,
The tower is provided with a plurality of towers, and is connected to a fluid supply unit provided in each of the plurality of towers. The tower is configured to store a pressure of fluid supplied from each of the fluid supply units, Further comprising: < RTI ID = 0.0 > a < / RTI > 5. The method of claim 4,
Wherein the hydraulic motor unit is provided with a plurality of hydraulic motors, and each of the hydraulic motor units is provided with a hydraulic motor having different capacities and connected to the accumulating unit. 6. The method of claim 5,
Further comprising a controller for controlling a hydraulic motor having a relatively high energy efficiency to be driven according to a pressure accumulated in the accumulation portion among hydraulic motors having different capacities. 5. The method of claim 4,
A pressure sensor is installed in the accumulation part, a flow rate sensor is installed in the accumulation part and the hydraulic motor part, and a water level value obtained by converting the pressure value measured by the pressure sensor is used as a driving interval And a controller for controlling the operation of the generator when the detected water level is equal to or higher than a set water level value and stopping the operation of the generator when the water level value obtained by converting the pressure value measured by the pressure sensor is equal to or lower than a water level value set as an operation interval according to the setting efficiency Wherein the hydraulic system further comprises: 8. The method of claim 7,
Wherein the hydraulic motor portion is provided with a swash plate angle adjusting portion for controlling the flow rate of the hydraulic motor to control the rotation of the hydraulic motor portion, and the control portion controls the angle adjustment of the swash plate angle adjusting portion. The piston of the fluid supply unit is driven in accordance with the rotation of the rotary unit to form a hydraulic pressure in the fluid supply unit connected to the rotary unit provided with the blade and equipped with the cylinder and the piston;
Rotating the hydraulic motor unit by the pressure of the fluid supplied from the fluid supply unit; And
Generating electricity in the generator according to the rotation of the hydraulic motor;
≪ / RTI > 10. The method of claim 9,
Further comprising the step of: providing a fluid at a predetermined pressure to the hydraulic motor unit, wherein the accumulation unit is connected to the plurality of fluid supply units and stores the fluid supplied from each of the fluid supply units. 11. The method of claim 10,
The fluid supply part is provided in a plurality of radial directions to supply a predetermined hydraulic pressure to the hydraulic motor part, one side of the fluid supply part is connected to the rotation part, and the other side is connected to the hydraulic motor part through one flow path A method of hydraulic power generation.

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