WO2013147498A1

WO2013147498A1 - Apparatus for generating hydraulic wind power and method thereof

Info

Publication number: WO2013147498A1
Application number: PCT/KR2013/002508
Authority: WO
Inventors: 최경식; 조병학; 양동순; 박신열; 박병철; 임영섭
Original assignee: 한국전력공사
Priority date: 2012-03-27
Filing date: 2013-03-26
Publication date: 2013-10-03
Also published as: CN104204513A; KR20130109413A; KR101967148B1; CN104204513B

Abstract

The present invention relates to an apparatus for generating hydraulic wind power and a method thereof, the apparatus for generating hydraulic wind power comprising: a rotating unit, provided with blades, which rotates due to the wind; a fluid supplying unit, connected to the rotating unit and provided with a cylinder and a piston, for providing fluid by means of the operation of the piston driven by the rotation of the rotating unit; and a hydraulic motor unit, connected to the fluid supplying unit, which rotates due to the pressure of the fluid provided by the fluid supplying unit; and a power generation unit, connected to the hydraulic motor unit, for generating electricity from the rotation of the hydraulic motor unit. Accordingly, the present invention has the benefit of reducing energy loss and raising the energy generation efficiency by allowing the hydraulic motor part to be operated at an operational level of high efficiency thereof.

Description

Hydraulic wind power generation device and method

The present invention relates to a hydraulic wind power generation apparatus and method thereof, and more particularly, to replace the hydraulic cylinder for converting wind power to hydraulic pressure instead of an increaser to reduce the weight of the power generation apparatus and to control the outflow of the fluid stored in the accumulator. The present invention relates to a hydraulic wind power generator and a method for increasing power generation efficiency.

In general, a wind turbine is a machine that converts a rotor into mechanical energy by using the aerodynamic characteristics of the kinetic energy of the air flow and converts the mechanical energy into electricity.

In addition, the wind turbine is classified into a horizontal type and a vertical type according to the direction of the rotation axis with respect to the ground. The main components include a rotor composed of a blade and a hub, and drives the generator by increasing the rotation. It consists of a gear box, a generator for controlling a generator and various safety devices, a hydraulic brake device, a power control device, and a tower.

On the other hand, recently, hydraulic wind generators using a fluid as an energy transfer medium in the process of generating electricity from mechanical energy obtained by rotating a rotor have been known.

Here, in the conventional hydraulic wind generator, an increaser is installed between the hydraulic pump and the blade for the purpose of increasing the flow rate flowing out through the hydraulic pump.

However, the increaser has a disadvantage of increasing the manufacturing cost of the wind power generator as an expensive device and frequent failures, and also has a problem in that power generation efficiency is lowered because energy loss occurs through the increaser.

Hydraulic wind power generation apparatus and method according to the present invention is derived to solve the above-mentioned conventional problems, and aims to solve the following problems.

According to an aspect of the present invention, a large amount of fluid can be supplied through a cylinder and a piston, thereby eliminating an increaser, thereby reducing energy loss. It is for the purpose of providing.

In addition, an object of the present invention is to provide a method capable of providing a predetermined range of hydraulic pressure after accumulation of a fluid pressure, and thus generating power in a high efficiency region.

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

Hydraulic wind power generation device according to an embodiment of the present invention is provided with a blade is provided with a rotating part that rotates by the wind, the rotating part, the cylinder and the piston is provided to the fluid by the driving of the piston in accordance with the rotation of the rotating part. A power supply connected to the fluid supply unit to supply the fluid supply unit, and connected to the hydraulic motor unit and the hydraulic motor unit rotated by the pressure of the fluid supplied from the fluid supply unit, and generating electricity according to the rotation of the hydraulic motor unit. Contains wealth.

In addition, in order to supply a constant hydraulic pressure in the hydraulic motor unit of the hydraulic wind power generator according to an embodiment of the present invention, the fluid supply unit is provided in a plurality of radially arranged, one side of the fluid supply unit is connected to the rotating unit, respectively The other side may be connected to the hydraulic motor unit through one flow path.

In addition, the hydraulic wind power generation device according to an embodiment of the present invention further includes a connecting plate having an opening formed in the center thereof, and a plurality of the fluid supply units connected to each other. Coupled to the blade is formed in the horizontal direction spaced apart from the drive shaft in a horizontal direction, the end of the drive shaft and the end of the rotating shaft is connected by a connecting shaft formed in the vertical direction, the rotation of the rotating part Accordingly, the center of the connecting plate may be provided to rotate in a circle having a radius of a spaced interval between the rotation shaft and the drive shaft.

In addition, the hydraulic wind power generation device according to an embodiment of the present invention is provided with a tower in which the rotating unit and the fluid supply unit is provided, the tower is provided in plurality, connected to the fluid supply unit respectively installed in the plurality of towers, After storing the pressure of the fluid supplied from each of the fluid supply unit, it may further include an accumulator for providing a fluid of a predetermined pressure to the hydraulic motor.

In the hydraulic wind power generator according to an embodiment of the present invention, the hydraulic motor unit may be provided in plural, and each hydraulic motor unit may be provided with hydraulic motors having different capacities, and may be connected to the accumulators, respectively.

In addition, the hydraulic wind power generator according to an embodiment of the present invention may further include a control unit for controlling the hydraulic motor is driven with a relatively high energy efficiency according to the pressure accumulated in the accumulator portion of the hydraulic motor having a different capacity. .

In the hydraulic wind power generator according to an embodiment of the present invention, a pressure sensor is installed in the accumulator, and a flow sensor is installed between the accumulator and the hydraulic motor, and is measured by the pressure sensor. The generator is operated when the level value obtained by converting the pressure value reaches a level that is the maximum of the available capacity of the accumulator,

The controller may further include a control unit configured to stop the operation of the generator when the output value is less than or equal to an operation section or when the pressure detected from the pressure sensor is a pressure corresponding to the lowest level of the accumulator.

In addition, in the hydraulic wind power generator according to an embodiment of the present invention, the hydraulic motor unit is provided with a swash plate angle control unit that can adjust the flow rate to control the rotation of the hydraulic motor unit, the controller is the angle of the swash plate angle control unit It may be arranged to control the adjustment.

In addition, the hydraulic wind power generation method according to an embodiment of the present invention is connected to a rotating part provided with a blade, in the fluid supply part provided with a cylinder and a piston, the step of driving the piston of the fluid supply part according to the rotation of the rotating part to form the hydraulic pressure And 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 unit.

In addition, the hydraulic wind power generation method according to an embodiment of the present invention is connected to a plurality of fluid supply unit is installed, the accumulator for storing the fluid supplied from each of the fluid supply unit provides a fluid of a predetermined pressure to the hydraulic motor unit. It may further comprise a step provided to.

In addition, in order to supply a constant hydraulic pressure to the hydraulic motor in the hydraulic wind power generation method according to an embodiment of the present invention, the fluid supply unit is provided in a plurality and disposed radially, one side of the fluid supply unit is connected to each of the rotating unit The other side may be connected to the hydraulic motor unit.

Hydraulic wind turbine generator and method according to an embodiment of the present invention has at least some of the following effects.

Hydraulic wind power generation device and method according to an embodiment of the present invention can supply a large amount of fluid through a fluid supply unit having a cylinder and a piston is possible to exclude the speed increaser is reduced energy loss, thereby There is an effect that the efficiency can be increased.

In addition, the hydraulic wind power generator and the method according to an embodiment of the present invention can provide a predetermined range of hydraulic pressure to the hydraulic motor after the accumulation of the fluid pressure through the accumulator, it is possible to operate in the high efficiency region of the hydraulic motor-generator Efficiency improvement can be expected.

In addition, the hydraulic wind power generator and the method according to an embodiment of the present invention reduce the installation cost by excluding the gearbox, and there is no fear of breakdown of the gearbox.

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

1 and 2 is a view showing a hydraulic wind power generator according to an embodiment of the present invention.

3 to 5 are views illustrating an operating state in which the fluid supply unit is disposed radially and operated in the hydraulic wind power generator according to the embodiment of the present invention.

6 is a view showing the operation control of the hydraulic motor unit according to the efficiency of the hydraulic wind power generator according to an embodiment of the present invention.

As used herein, the singular forms "a", "an", and "the" include the plural expressions unless the context clearly dictates otherwise. , Number, steps, actions, components, parts, or combinations thereof, and the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof It should be understood that it does not exclude.

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

Referring to FIG. 1, the hydraulic wind power generator 1000 according to an embodiment of the present invention includes a rotating part 100 provided with a blade 110 and rotating by wind.

In addition, the hydraulic wind power generator 1000 according to an embodiment of the present invention is connected to the rotating unit 100, the cylinder 210 and the piston 220 is provided with the piston in accordance with the rotation of the rotating unit 100 And a fluid supply part 200 supplying a fluid by driving of the 220 (see FIGS. 3 to 5).

Here, a detailed description of the cylinder 210 and the piston 220 will be described later.

In addition, the hydraulic wind power generator 1000 according to an embodiment of the present invention is connected to the fluid supply unit 200, the hydraulic motor unit 300 is rotated by the pressure of the fluid supplied from the fluid supply unit 200 It includes.

And, the hydraulic wind power generator 1000 according to an embodiment of the present invention is connected to the hydraulic motor unit 300, the power generation unit 400 for generating electricity in accordance with the rotation of the hydraulic motor unit 300 Include.

Meanwhile, the hydraulic wind power generator 1000 according to an embodiment of the present invention may further include a connection plate having an opening formed at a center thereof, and a plurality of connection plates connected to the fluid supply units, respectively.

Hereinafter, each configuration will be described in detail.

Referring to Figure 1, the rotating part 100 is provided with a blade 110 is provided to rotate by the wind.

Here, the rotating part 100 includes the blade 110, the blade 110 is provided to rotate by the wind fluid supply unit is connected to the rotating part 100 is the rotation energy generated through the blade 110 Is provided to be delivered to (200).

1 and 3, the fluid supply unit 200 is connected to the rotation unit 100, and the fluid supply unit 200 is provided with a cylinder 210 and a piston 220 to provide the rotation unit 100. In accordance with the rotation of the piston 220 is provided to supply the fluid to the drive

Here, the fluid supply unit 200 may be provided such that one side is connected to the hydraulic motor unit 300 and the other side is connected to the fluid storage unit 310, as shown in FIG.

The fluid flowing out of the fluid supply unit 200 drives the hydraulic motor unit 300 and is then stored in the fluid storage unit 310, and the fluid stored in the fluid storage unit 310 is pumped by the pump 320. It may be provided to enable the circulation flowing into the fluid supply unit 200 again.

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

Here, the fluid introduced into the cylinder 210 of the fluid supply unit 200 flows out of the cylinder 210 by the driving of the piston 220, and the hydraulic motor unit 300 connected to the fluid supply unit 200. It is provided to rotate.

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 supply capacity of the fluid is relatively small, and thus a speed increaser is used.

However, the hydraulic wind power generator 1000 and the method according to an embodiment of the present invention uses a cylinder 210 provided with a piston 220 as the fluid supply unit 200, so that a fluid having a relatively large capacity without a speed increaser is provided. Since it can be supplied to the hydraulic motor unit 300, stable power generation is possible.

In addition, the hydraulic wind power generator 1000 and the method according to an embodiment of the present invention may reduce the energy loss generated in the speed increaser by excluding the speed increaser, thereby increasing power generation efficiency.

In addition, the installation cost for producing a speed reducer is reduced from the increase of the speed reducer, and there is no fear of breakdown of the speed increaser.

On the other hand, the fluid supply unit 200 may be provided in a plurality and disposed radially.

That is, referring to FIGS. 3 to 5, the cylinder 210 and the piston 220 provided in the fluid supply unit 200 are provided in plural to radially supply the hydraulic pressure to the hydraulic motor unit 300. It is disposed, one side of the fluid supply unit 200 may be connected to the rotating unit 100, the other side may be provided to be connected to the hydraulic motor unit 300 through one flow path.

In addition, the plurality of fluid supply units 200 may be provided radially so as to have three spaces of 120 degrees. However, the number and spacing of the fluid supply unit 200 are not limited thereto.

Here, the cylinder 210 and the piston 220 provided in the plurality of the fluid supply unit 200 may be connected to the connecting plate 500 having an opening 510 in the center, respectively.

In addition, the cylinder 210 provided in the fluid supply unit 200 may be connected to the flow path 212, and the accumulator 600 may be connected to the flow path 212.

In addition, a driving shaft 520 formed in a horizontal direction is coupled to the opening 510 of the connecting plate 500, and a rotating shaft 120 spaced apart from the driving shaft 520 by a predetermined interval R is formed in the horizontal direction. It is coupled to the blade 110, the end of the drive shaft 520 and the end of the rotating shaft 120 may be provided to be connected by a connecting shaft 530 formed in the vertical direction.

In addition, as the rotation unit 100 rotates, the center of the connecting plate 500 may be provided to rotate in a circle having a radius of a spaced interval between the rotation shaft 120 and the driving shaft 520.

That is, referring to FIG. 3, the blade 110 is coupled to the rotation shaft 120 to rotate together with the rotation shaft 120.

The connecting shaft 530 extending in the vertical direction is connected to an end of the rotating shaft 120, and the connecting shaft 530 rotates in association with the rotation of the rotating shaft 120.

In addition, the driving shaft 520 is connected to the end of the connecting shaft 530, and rotates in conjunction with the rotation of the connecting shaft 530.

That is, when the rotary shaft 120 is rotated, the drive shaft 520 is rotated while drawing a circle with a radius (R) spaced apart from the rotary shaft 120 and the drive shaft 520.

Here, the driving shaft 520 is connected to the opening 510 formed in the center of the connecting plate 500, so that when the driving shaft 520 is rotated, the connecting plate 500 also the rotating shaft 120 and the driving shaft It rotates while drawing a circle having a radius of spaced apart interval (R) of (520).

Hydraulic wind power generator 1000 and the method according to an embodiment of the present invention is to arrange the fluid supply unit radially to supply a constant flow rate to the hydraulic motor, it will be described below.

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

That is, when the cylinder 210 is compressed, the fluid introduced into the cylinder 210 may be supplied to the hydraulic motor unit 300, but when the cylinder 210 is expanded, the fluid flows into the cylinder 210. While temporarily supplying the fluid to the hydraulic motor unit 300 is stopped.

Thus, as with alternating current whose magnitude and phase change over time, the fluid also changes in the amount supplied over time.

However, the hydraulic wind power generator 1000 and the method according to an embodiment of the present invention are provided with a plurality of the fluid supply unit 200 is disposed radially, thereby, of the fluid supplied to the hydraulic motor unit 300 The quantity can be made constant.

That is, as shown in FIGS. 3 to 5, each flow rate flowing out of the plurality of cylinders 210 changes with time, but the total flow rate flowing out of the plurality of cylinders 210 remains constant. Can be.

For example, in more detail, when the connecting plate 500 is moved clockwise in the position shown in FIG. 3, the piston 220 is expanded in the cylinder X, so that the first passage 212 (a The fluid does not flow out through)), and the first valve 214 (a) is opened to allow fluid to flow into the cylinder (X). That is, the flow rate flowing out through the cylinder X is zero.

In the cylinder Y, while the compression of the piston 220 proceeds considerably, the second valve 214 (b) is closed, and the fluid flows out through the second flow passage 212 (b). Here, the flow rate flowing out through the cylinder (Y) is assumed to be 0.8.

In addition, in the cylinder Z, the third valve 214 (c) is closed in the state where the compression of the piston 220 is started, and the fluid starts to flow out through the third flow path 212 (c). Here, the flow rate flowing out through the cylinder Z is assumed to be 0.2.

In FIG. 3, the total flow rate flowing through three cylinders X, Y, and Z moves through the fourth flow passage 212 (d) provided as one flow passage corresponds to one.

Here, ① of the first channel 212 (a) is connected to ① of the fourth channel 212 (d), and ② of the second channel 212 (b) is the fourth channel 212 (d). Is connected to ②, ③ of the third flow path (212 (c)) may be provided to be connected to ③ of the fourth flow path (212 (d)). This connection structure is also common in FIGS. 4 and 5.

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

In addition, since the piston 220 is expanded in the cylinder Y, the fluid does not flow out through the second passage 212 (b), and the second valve 214 (b) opens to open the fluid into the cylinder Y. Is introduced. That is, the flow rate flowing out through the cylinder Y is zero.

In the cylinder Z, while the compression of the piston 220 proceeds considerably, the third valve 214 (c) is closed, and the fluid flows out through the third flow passage 212 (c). Here, the flow rate flowing out through the cylinder Z is assumed to be 0.8.

In FIG. 4, the total flow rate flowing through the three cylinders X, Y, and Z moves through the fourth flow passage 212 (d) provided as one flow passage corresponds to one.

In addition, when the connecting plate 500 is moved in the clockwise direction at the position shown in FIG. 5, in the cylinder X, the compression of the piston 220 proceeds considerably, and the first valve 214 (a) is It is closed and the fluid flows out through the 1st flow path 212 (a). Here, the flow rate flowing out through the cylinder (X) is assumed to be 0.8.

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

In addition, since the piston 220 is expanded in the cylinder Z, the fluid does not flow out through the third flow path 212 (c), and the third valve 214 (c) is opened to open the fluid into the cylinder Z. Is introduced. That is, the flow rate flowing out through the cylinder Z is zero.

In FIG. 5, the total flow rate flowing through the three cylinders X, Y, and Z is moved through the fourth flow passage 212 (d) provided as one flow passage corresponds to one.

That is, in the examples of FIGS. 3 to 5, although the flow rates flowing out through the respective cylinders 210 among the plurality of cylinders 210 are different from each other, the flow paths flow out through the three cylinders X, Y, and Z to form one flow path. The total flow rate moved through is equal to one.

That is, the hydraulic wind power generator 1000 and the method according to an embodiment of the present invention as if the output is constant in three-phase alternating current of the same size and only 120 degrees difference phase by placing a plurality of cylinders (210) radially The total outflow of fluid may be provided to be kept constant.

From this, a certain amount of fluid can be supplied to the hydraulic motor unit 300, and there is an effect that the generation of a constant output is possible.

On the other hand, the first valve to the third valve may be provided as a check valve formed to flow in only one direction to prevent the back flow of the liquid.

Referring to FIG. 1, the hydraulic motor unit 300 is connected to the fluid supply unit 200 and provided to rotate 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 a generator, so that electricity is generated in the power generation unit 400 according to the rotation of the hydraulic motor unit 300. Prepared.

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

And, as shown in Figure 1, the accumulator 600 is connected to each of the fluid supply unit 200 installed in the plurality of the tower 900, after storing the fluid supplied from each of the fluid supply unit 200 In addition, the hydraulic motor 300 may be provided to provide a fluid having a predetermined pressure.

If the rotational speed of the blade is irregular according to the wind, there is a problem that the output of the conventional wind generator is also irregular.

However, the hydraulic wind power generator 1000 and the method according to an embodiment of the present invention is provided with a accumulator 600, the accumulator 600 is a fluid supply unit 200 respectively installed in a plurality of towers (900) After accumulating the pressure of the fluid flowing from the) provides a constant hydraulic pressure to the hydraulic motor unit 300 connected to one side of the accumulator 600, a constant output from the power generation unit 400 connected to the hydraulic motor unit 300 It is arranged to be generated.

From this, it is possible to supply a certain amount of fluid to the hydraulic motor unit 300 through the accumulator 600, as well as to minimize the impact applied to the hydraulic system by the fluid flow to improve the system durability.

In addition, as illustrated in FIG. 1, a pressure sensor 610 may be installed at the accumulator 600, and a flow sensor 620 may be installed at the hydraulic motor 300.

Then, the control unit 700a operates the generator when the water level value obtained by converting the pressure value measured by the pressure sensing sensor reaches a water level which is the maximum of the available capacity of the accumulator, and when the output value is less than or equal to the operating range or the pressure sensing It may be provided to control the operation to stop the operation of the generator when the pressure sensed from the sensor is the pressure corresponding to the lowest level of the accumulator.

Here, the hydraulic motor unit 300 is provided with a swash plate angle adjusting unit 800 that can adjust the flow rate to control the rotation of the hydraulic motor unit 300, the control unit 700a is the swash plate angle adjusting unit It may be provided to control the angle adjustment of the (800).

The control unit 700a is detected from the flow rate sensor 620 installed in the hydraulic motor unit 300 and the data on the pressure (P) of the accumulator detected by the pressure sensor 610 installed in the accumulator 600. Receive and store data on flow rate (Q).

The controller 700a may be provided to estimate the level L of the fluid from the pressure P of the accumulator.

Here, the efficiency (η _mg ) of the hydraulic motor unit 300-power generation unit 400 is a value _obtained by multiplying the efficiency (η _m ) of the hydraulic motor unit 300 by the efficiency (η _g ) of the power generation unit 400. Corresponds to

Referring to FIG. 6, in a section in which the efficiency η _mg of the hydraulic motor 300-power generation unit 400 is lower than the predetermined efficiency η _mg1 , the hydraulic motor 300 is stopped. In a section in which the efficiency (η _mg ) of the hydraulic motor unit 300-power generation unit 400 is higher than the predetermined efficiency (η _mg1 ) and lower than the maximum efficiency (η _{mg max} ), the hydraulic motor unit 300 is operated. It may be set to an interval.

Here, the predetermined efficiency η _mg1 is an efficiency at an arbitrary point b, which corresponds to a constant, and may be arbitrarily set in consideration of various conditions.

On the other hand, the control unit 700a sends an operation start signal to the swash plate angle adjusting unit 800 when the pressure P of the accumulator part is equal to or higher than the pressure corresponding to the level of the available capacity of the accumulator 600. According to an operation start signal, the swash plate angle may be provided to gradually open.

The controller 700a calculates data on the pressure P of the accumulator and data on the flow rate Q, and the controller 700a has a PQ / η _mg1 value of b + (( Continue to open the swash plate angle until the value corresponding to ab) / 2) point, and then adjust the swash plate angle according to the changing PQ / η _mg1 value.

In addition, the swash plate adjustment method is a percentage of the value obtained by subtracting the value b from the value a in FIG. 6 from the value _P in the control part 700a, that is, PQ * 100 / (η _mg1 * (ab)). By calculating the swash plate angle is a method of sending a signal to open the swash plate angle corresponding to the percentage of the maximum operating angle to the swash plate angle control unit 800.

Here, the control unit 700a is the output value (PQ / η _mg1 ) is lower than the operating interval, that is, below the value corresponding to the point b in Figure 6 or the pressure detected from the pressure sensor 610 is When the pressure is lower than the pressure corresponding to the lowest level of the available capacity 600, the swash plate angle control unit 800 sends a stop signal, the swash plate angle control unit 800 adjusts the swash plate angle to 0 degrees By stopping the operation of the hydraulic motor unit 300.

In this way, by controlling the swash plate angle adjusting unit 800, the efficiency of the hydraulic motor-generator can be improved, and as a result, the utilization rate can be improved, and the hydraulic energy is stably changed to electric power to provide the electric power. This has the effect of improving quality.

In addition, the control unit 700a may control 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 rotational speed of the hydraulic motor unit 300 is increased.

And, if the swash plate angle is gradually reduced, the flow rate (Q) flowing into the hydraulic motor unit 300 is also reduced, so that the rotational speed of the hydraulic motor unit 300 is slowed.

That is, when the wind speed is irregular, when the wind speed is high, the power is generated using some fluid, and the remaining fluid is stored in the accumulator 600 to accumulate hydraulic pressure, and when the wind speed is low, the hydraulic pressure stored in the accumulator 600 Since it can be generated by using, through this, it is possible not only to obtain a constant power generation output, but also improve the power generation efficiency.

Referring to FIG. 2, the hydraulic motor unit 300 may be provided in plural, and each hydraulic motor unit 300 may be provided with hydraulic motors having different capacities and connected to the accumulator 600, respectively. have.

That is, when the wind speed changes with time, since the storage amount of the fluid stored in the accumulator 600 is different from each other, the most efficient hydraulic motor unit 300 in consideration of the storage amount of the fluid stored in the accumulator 600. It can be provided to drive.

For example, if the hydraulic motor provided in the hydraulic motor unit 300 is four, and each of the capacity of the hydraulic motor is 6.25%, 12.5%, 25%, 50% of the total capacity, when the wind speed is the weakest 6.25% capacity of the hydraulic motor can be driven, and when the wind speed is the strongest, it can be arranged to drive the hydraulic motor that selects and combines the small capacity sequentially from the large capacity.

Here, the controller 700b may be further configured to control 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 capacity of the hydraulic motor is only one example, the number and capacity are not limited thereto.

This has the effect of obtaining the maximum power generation efficiency at the wind speed.

On the other hand, as described above, the control unit 700a for controlling the stop or operation of the generator in accordance with the pressure and the flow rate of the accumulator 600, and the hydraulic pressure of the relatively high efficiency in accordance with the flow rate of the plurality of hydraulic motor unit 300 The control unit 700b for driving the motor unit 300 may be provided as one control unit or may be provided 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 in common with the hydraulic wind power device is replaced with the above description.

First, in the fluid supply unit 200 connected to the rotating unit 100 provided with the blade 110 and provided with the cylinder 210 and the piston 220, the piston of the fluid supply unit 200 according to the rotation of the rotating unit 100. 220 is driven to form hydraulic 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 accumulator 600 is connected to the plurality of fluid supply unit 200, the storage unit 600 for storing the fluid supplied from each of the fluid supply unit 200 to provide a fluid of a predetermined pressure to the hydraulic motor unit 300 The hydraulic motor unit 300 may be provided to rotate.

In addition, in order to supply a constant hydraulic pressure to the hydraulic motor unit 300, the fluid supply unit 200 is provided in a plurality arranged radially, one side of the fluid supply unit 200 is connected to the rotating unit 100, The other side may be provided to be connected to the hydraulic motor unit 300 through a fourth flow passage 212 (d) provided as one flow passage.

The specification of the present invention, the present embodiment and the accompanying drawings only clearly show some of the technical ideas included in the present invention, and those skilled in the art within the scope of the technical ideas included in the specification and drawings of the present invention. Modifications and specific embodiments that can be easily inferred will be apparently included in the scope of the invention.

Claims

A rotating part provided with a blade and rotated by wind;

A fluid supply unit connected to the rotating unit and provided with a cylinder and a piston to supply fluid by driving the piston according to the rotation of the rotating unit;

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 power generation unit connected to the hydraulic motor unit and generating electricity according to the rotation of the hydraulic motor unit;

Hydraulic wind power generation device comprising a.
The method of claim 1,

In order to supply a constant hydraulic pressure to the hydraulic motor unit, the fluid supply unit is provided in a plurality and radially arranged, one side of the fluid supply unit is connected to the rotating part, the other side is connected to the hydraulic motor unit through one flow path Hydraulic wind power generator, characterized in that.
The method of claim 2,

And a connection plate having an opening formed in a center thereof, the plurality of connecting fluid supply parts being connected to each other.

A drive shaft formed in a horizontal direction is coupled to an opening of the connecting plate, and a rotation shaft formed in a horizontal direction spaced apart from the drive shaft by a predetermined distance is coupled to the blade, and an end of the drive shaft and an end of the rotation shaft are formed in a vertical direction. Connected by connecting shaft,

According to the rotation of the rotating unit, the center of the connecting plate is a hydraulic wind power generator, characterized in that rotating in a circle with a radius of the spaced apart interval between the rotating shaft and the drive shaft.
The method according to any one of claims 1 to 3,

The rotating unit and the fluid supply unit is provided with a tower,

The tower may be provided in plurality, and may be connected to a fluid supply unit installed in each of the plurality of towers, and after storing the pressure of the fluid supplied from each of the fluid supply units, the accumulator unit for supplying a fluid having a predetermined pressure to the hydraulic motor unit. Hydraulic wind turbine further comprises a.
The method of claim 4, wherein

The hydraulic motor unit is provided in plural, each hydraulic motor unit is provided with a hydraulic motor having a different capacity, the hydraulic wind power generator, characterized in that connected to each of the accumulator.
The method of claim 5,

And a control unit for controlling a hydraulic motor having a relatively high energy efficiency according to the pressure accumulated in the accumulator among the hydraulic motors having different capacities.
The method of claim 4, wherein

The accumulator is provided with a pressure sensor, a flow sensor is installed between the accumulator and the hydraulic motor, the level value obtained by converting the pressure value measured by the pressure sensor is the maximum of the available capacity of the accumulator. Drive the generator when the water level is reached,

And a control unit operable to stop the operation of the generator when the output value is less than or equal to the operation section or when the pressure detected from the pressure sensor is a pressure corresponding to the lowest level of the accumulator.
The method of claim 7, wherein

The hydraulic motor unit is provided with a swash plate angle control unit for adjusting the flow rate to control the rotation of the hydraulic motor unit during operation, the control unit is characterized in that the hydraulic wind power generator characterized in that for controlling the angle adjustment of the swash plate angle control unit.
A hydraulic pressure is formed by driving the piston of the fluid supply part according to the rotation of the rotation part in the fluid supply part connected to the rotation part provided with the blade and the cylinder and the piston;

Rotating the hydraulic motor part by the pressure of the fluid supplied from the fluid supply part; And

Generating electricity from a generator according to the rotation of the hydraulic motor unit;

Hydraulic wind power generation method comprising a.
The method of claim 9,

And a pressure accumulating unit connected to a plurality of fluid supply units and storing the fluid supplied from each of the fluid supply units, supplying a fluid having a predetermined pressure to the hydraulic motor unit.
The method of claim 10,

The fluid supply part is provided in a plurality and radially arranged to supply a constant hydraulic pressure to the hydraulic motor unit, one side of the fluid supply unit is connected to the rotating part, the other side is connected to the hydraulic motor unit through one flow path Hydraulic wind power generation method characterized by.