JP2018059449A - Wind power generator and wind power generator control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind power generator strong for a wind damage by improving the defect of the prior art to associate control methods of kinds organically and complexly thereby to compensate the shortages of the individual control methods.SOLUTION: In a running control method for a wind power generator, the rotation number of a windmill part is controlled within a predetermined range, at least one of control rotation motor part, regenerative brake control means, and mechanical brake means is so controlled in response to one information selected from a wind velocity information, a wind direction information and the rotation speed information of electric generation means that the rotation number of the windmill part may be restricted within a predetermined range.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wind turbine generator and a method for controlling the wind turbine generator, and more particularly, to a medium-sized or small-sized wind turbine generator, which has a simple configuration and low manufacturing cost and reduces power generation efficiency. The present invention relates to a wind turbine generator and a wind turbine generator control method capable of reducing maintenance costs and efficiently preventing damage from wind power.

In general, although the wind power generation device has a long history, there are many accidents in which the wind power generation device is damaged or destroyed by strong winds.
The cause of these damages / destructions is that most of the moment is generated by the wind pressure when the blade part is rotated by receiving strong wind pressure and the centrifugal force accompanying the rotation, resulting in damage to the blade part or collapse of the column. Furthermore, an overcurrent is generated when the rotational speed of the windmill portion becomes too high, which leads to a failure such that the generator is burnt.
Conventionally, for example, the following technologies have been developed and put into practical use as means for preventing the occurrence of various problems as described above.

For example, (1) a technique called pitch control that avoids wind reception by changing the angle of a blade provided in a wind turbine unit to a wind direction.
(2) A technique called upside-down control in which the entire mechanical device is tilted in advance when strong wind is predicted on the nacelle part and the upper part of the column.
(3). Technology called stall control that suppresses the rotation of the blade part by short-circuiting the power generated by the generator during strong winds, or
(4) A technique called furing control that causes the direction of the blade to face the wind direction in a strong wind.
By the way, there are many cases where these technologies are adopted individually and independently, and when they are adopted alone, there are cases where inherent weaknesses are exposed when accidents occurring are verified.

That is, the problem when trying to control the wind power generator only by the pitch control of the above (1) is that the blade portion does not stop when the wind pressure is applied in the rotation direction of the blade portion due to the generated turbulent flow. I have it.
In addition, the up / down control technology (2) has a problem that there are cases where it is not in time for a sudden gust of wind.
Furthermore, although the stall control technique (3) is effective, it cannot prevent the blade portion from rotating due to a certain amount of wind.

On the other hand, in the furing control technology of (4), it is not possible to cope with the change in wind direction that changes every hour as in the case of a typhoon, and the blade part may face the front with respect to the wind direction. It has a problem that it frequently occurs and control becomes difficult.
If mention is made of an example of a specific technical configuration that has been developed in order to eliminate the conventional drawbacks, for example, Japanese Unexamined Patent Application Publication No. 2011-111939 (Patent Document 1) includes a wind direction wind speed device. A technique for performing control to rotate the wind power generator itself or its support so that the rotation plane of the blade portion in the wind turbine portion is parallel to the wind direction during strong wind is disclosed.

However, in such a technology, the wind power generator is reduced by reducing the wind pressure applied to the wind turbine unit by installing the rotation plane of the blade unit in parallel with the wind direction only during a strong wind. Technology that only prevents the destruction and collapse of the device itself is disclosed, and it is a technology that controls the rotation speed of the blade part of the wind turbine part to an appropriate value not only in strong winds but also in cases other than strong winds. With regard to, there is no disclosure at all and no indication suggesting it.
In addition, in a large-scale wind power generator in Japanese Patent Application Laid-Open No. 2007-224879 (Patent Document 2), when the wind is strong, the pitch angle of the blade portion attached to the windmill portion is made parallel to the wind direction. Although the technique for performing the control to change is disclosed, in the Patent Document 2, the pitch angle changing mechanism of the blade portion employs a complicated mechanical configuration, and further, the pitch angle is changed. Since the change mechanism is configured to use both a hydraulic pump and a hydraulic motor, the entire device is enlarged, the manufacturing process is complicated, and maintenance is not easily performed. However, this mechanism can only be used for large wind power generators.

On the other hand, Japanese Patent Application Laid-Open No. 2001-289149 (Patent Document 3) discloses a yaw turning drive control technology for a wind turbine generator that is applied to a large wind turbine generator. There is disclosed a control mechanism capable of arbitrarily changing the direction of the blade portion in the wind turbine unit using the electric motor.
However, in Patent Document 3, the control mechanism is complicated and the manufacturing cost increases, the maintenance is complicated and the work efficiency is low, and the cost must be high. Not only is this technology difficult to adopt, but there is no disclosure or suggestion regarding the control of the rotational speed of the wind turbine section.

Furthermore, in Japanese Patent Application Laid-Open No. 2008-5612 (Patent Document 4), when wind power increases, in order to prevent the rotation speed of the blade part of the windmill part, the wind speed information or the current value of the generator is used. A technique of using both a short-circuit brake (regenerative brake) and an electromagnetic friction brake (mechanical brake) using information is disclosed.
However, in the patent document 4, there is no disclosure or suggestion regarding the technology for controlling using the information on the rotational speed of the blade part, which is the most important technical element for the control of the wind power generation apparatus. It is impossible to control the wind power generator.

JP 2011-111939 A JP 2007-224879 A JP 2001-289149 A JP 2008-5612 A

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and the object of the present invention is, in particular, a medium-sized or small-sized wind power generator, which has a simple configuration and low manufacturing cost. It is an object of the present invention to provide a wind turbine generator and a wind turbine generator control method capable of reducing maintenance costs without lowering efficiency and efficiently preventing wind damage.
Furthermore, another object of the present invention is to systematically combine a plurality of types of control data and a plurality of types of control mechanisms and to organically link the control mechanisms, thereby reducing the disadvantages of the control mechanisms. It is possible to control the moment related to the wind power generator by compensating for the centrifugal force generated in the blade part during strong winds and controlling the rotation speed of the blade part within an appropriate range. In particular, the present invention provides a medium-sized or small-sized wind power generator that can be operated safely and continuously for a long period of time, and a control method thereof.

In order to solve the above-described problems of the prior art and achieve the above-described object of the present invention, the present invention basically adopts the following technical configuration.
That is, the first aspect of the present invention includes a column part, a nacelle part rotatably attached to the uppermost step part of the column part in a horizontal plane, and a plane of the nacelle part on the rotation surface of the nacelle part. In parallel, a rotating shaft portion that is rotatably attached via appropriate support means, and is disposed at one end of the rotating shaft portion in a direction orthogonal to the central axis of the rotating shaft portion. One end is engaged with the wind turbine portion composed of a plurality of blade portions, a rotation transmission mechanism portion provided at an appropriate part of the rotation shaft, and the rotation transmission mechanism portion, and the central axis is A rotation transmission shaft portion arranged so as to hang down the inside of the column portion, a power generation means connected to the lower end portion of the rotation transmission shaft portion, the rotation transmission mechanism portion and the power generation means in the rotation transmission shaft Placed at an appropriate location between A mechanical brake means for controlling the rotation of the rotation transmission shaft part, a control rotation motor part provided at an appropriate part of the support column part and controlling the rotation of the nacelle part through an appropriate gear means, and the support post Wind speed / wind direction measuring means provided at appropriate parts of the unit, regenerative brake control means for applying a regenerative brake to the power generation means, power generation means rotation speed measuring means for measuring the rotation speed of the power generation means, wind speed / wind direction measurement Latest measurement information from the power generation means and the power generation means rotation speed measurement means, and controls at least one of the control rotation motor unit, the regenerative brake control means, and the mechanical brake means in response to the latest measurement information. A wind power generator characterized by comprising wind turbine generator control means functioning as described above, and the second aspect of the present invention is a strut, A nacelle portion that is rotatably attached to the uppermost step portion of the column portion in a horizontal plane, and is rotatably attached to the rotation surface of the nacelle portion via appropriate support means in parallel with the plane of the nacelle portion. A rotating shaft portion, a windmill portion composed of a plurality of blade portions disposed in one direction of the rotating shaft portion in a direction orthogonal to the central axis of the rotating shaft, and an appropriate portion of the rotating shaft. A rotation transmission mechanism portion provided at a portion of the rotation transmission shaft, one end portion of which is engaged with the rotation transmission mechanism portion, and a rotation transmission shaft disposed so that a central axis thereof hangs down from the inside of the support column portion , The power generation means connected to the lower end of the rotation transmission shaft portion, and the rotation transmission disposed at an appropriate portion of the rotation transmission shaft between the rotation transmission mechanism portion and the power generation means. Controls rotation of shaft A mechanical brake means, a control rotation motor part provided in an appropriate part of the support part and controlling the rotation of the nacelle part through an appropriate gear means, a wind speed and a wind direction provided in an appropriate part of the support part In the wind power generator constituted by the measurement means, the regenerative brake control means for applying the regenerative brake to the power generation means, and the power generation means rotation speed measurement means for measuring the rotation speed of the power generation means, the control rotation motor unit, At least one of the regenerative brake control means and the mechanical brake means is selected from the wind speed information, the wind direction information, and the rotation speed information of the power generation means sequentially obtained from the wind speed / wind direction measurement means and the power generation means rotation speed measurement means. In response to at least one selected information, the rotational speed of the wind turbine unit is controlled to be regulated within a predetermined range. It is an operation control method of a wind turbine generator that.

Since the wind power generation apparatus and the operation control method for the wind power generation apparatus according to the present invention employ the technical configuration as described above, they improve the problems of the prior art and can be manufactured while having a simple configuration. There is provided a wind turbine generator and a wind turbine generator control method that are low in cost, low in power generation efficiency, low in maintenance cost, and capable of effectively preventing wind damage.
Furthermore, in the present invention, a plurality of types of control data and a plurality of types of control mechanisms are systematically combined and integrated, and the respective control mechanisms are organically linked to compensate for the disadvantages of the respective control mechanisms. In addition, it is possible to control the moment related to the wind power generator by controlling the rotation speed of the blade part within an appropriate range while suppressing the centrifugal force generated in the blade part during strong wind. The present invention provides a wind power generator that is safe, can be efficiently and continuously operated over a long period of time, has excellent durability, and particularly has a medium or small size, and a control method thereof.

Further, in the present invention, it is possible to efficiently and economically prevent a wind power generation apparatus from being damaged or destroyed due to frequent accidents caused by strong winds, but the power generation efficiency is not reduced. In addition to providing a reliable and reliable wind power generator, a device that can prevent natural pollution caused by power generation by wind power and that can convert natural energy into electric power and a control method thereof are provided. It is what is done.

FIG. 1 is a block diagram illustrating a configuration example of a specific example of a wind turbine generator according to the present invention. FIG. 2 is an external view of a configuration example of a specific example of the wind turbine generator according to the present invention as seen from the front. FIG. 3 is an external view of a configuration example of a specific example of the wind turbine generator according to the present invention as seen from the front. FIG. 4 shows that the mechanical brake means and the power generation means are engaged via the rotation shaft portion of the windmill portion and the rotation transmission shaft portion orthogonal to the rotation shaft portion in one specific example of the wind power generator according to the present invention. It is a perspective view which shows the example of a state. FIG. 5 is a perspective view showing an example of a nacelle control mechanism in a specific example of the wind turbine generator according to the present invention. FIG. 6 is a flowchart for explaining an operation procedure for executing the method for controlling a wind turbine generator according to the present invention.

The configuration of each specific example of the wind turbine generator and the method for controlling the wind turbine generator according to the present invention will be described in detail below with reference to the drawings.
First, the configuration of a specific example of the wind turbine generator 1 according to the present invention will be described.
That is, FIG. 1 is a side view showing the configuration of a specific example of the wind turbine generator 1 according to the present invention. In the figure, the support column 2 and the uppermost step portion 21 of the support column 2 are arranged in a horizontal plane. Rotatingly attached to the nacelle part 3 that is rotatably attached, on the rotational plane 4 of the nacelle part 3, in parallel with the rotational plane 4 of the nacelle part 3 via appropriate support means 5. A wind turbine unit 10 including a plurality of blade units 9 disposed in a direction orthogonal to the central axis 8 of the rotation shaft unit 6 at one end 7 of the shaft unit 6 and the rotation shaft unit 6; One end 12 is engaged with the rotation transmission mechanism 11 provided at an appropriate part of the rotation shaft 6, and the rotation transmission mechanism 11, and the central axis 13 extends inside the column 2. Rotation transmission shaft portion 14 arranged so as to hang down, the rotation transmission shaft The power generation means 16 connected to the lower end 15 of the portion 14 and the rotation transmission disposed at an appropriate portion of the rotation transmission shaft 14 between the rotation transmission mechanism 11 and the power generation means 16. Mechanical brake means 17 for controlling the rotation of the shaft portion 15, a control rotation motor portion 19 provided at an appropriate part of the support column portion 2 and controlling the rotation of the nacelle portion 3 via an appropriate gear device 18, the support column Wind speed / wind direction measuring means 20 provided at appropriate parts of the unit 2, regenerative brake control means 22 for applying a regenerative brake to the power generation means 16, and power generation means rotation speed measurement means 23 for measuring the rotation speed of the power generation means 16 , Receiving the latest measurement information from the wind speed / wind direction measurement means 20 and the power generation means rotation speed measurement means 23, and in response to the latest measurement information, the control rotation motor 19, the regenerative braking control means 22 and the mechanical wind turbine generator 1 and a wind power generator control unit 24 for functioning so as to control at least one brake means 17 is shown.

In FIG. 1, reference numeral 13 denotes a flat tail for wind direction provided on a part of the appropriate support means 5 on the nacelle section 3, which is made of an arbitrary material. The flat portion of the flat plate 13 is arranged and attached so as to be perpendicular to the flat portion of the nacelle portion 3, and the flat portion of the flat plate of the tail 13 is provided in the nacelle portion 3. It is arranged in a direction that coincides with the direction of the central axis of the rotary shaft 6 that is rotatably arranged between the pair of support means 5, 5.

  That is, the wind turbine generator 1 according to the present invention has conventionally been the main device of the wind turbine generator, and the so-called wind turbine unit having the blade portion has a diameter of 15 m to 20 m. Large wind turbine generators with an installation position of 15m or more from the ground have the major problem that they are often subject to significant restrictions from the installation location, and the wind turbine generator itself is expensive to manufacture and is There is a problem that the construction cost is also high, and furthermore, the main drive part of the wind turbine generator is installed in the air that is out of the reach of workers from the ground. It has the disadvantage that maintenance costs increase, and at the same time, various controls are complicated, causing power generation efficiency to decrease. And low frequency occurrence of problems caused such as to contain, the wind turbine generator of the large-size, at present, have yet to aggressively employ Sarukoto as in main power source to the respective countries.

On the other hand, the wind turbine generator 1 according to the present invention is different from such a conventional large wind turbine generator in that the maximum diameter of the wind turbine portion composed of the plurality of blades is 10 m or less. In addition, the power generation mechanism in the wind turbine generator 1 is provided at the upper end of the support column of 8 m at most, with a simple configuration, low product cost, and easy comprehensive maintenance work. Because it can be performed, the maintenance cost can be significantly reduced, wind damage can be effectively prevented, noise generation is low, low-frequency problems can be suppressed, and there are restrictions on the installation location. By carrying out fine control operations that rarely occur and the rotation of the wind turbine unit in the wind power generator 1 is organically linked with a plurality of control devices, power generation costs are reduced and power generation efficiency is improved. By means lines to reduce the power required for the control and is obtained by realizing a wind turbine generator 1 having an economic size or medium-size standards.

That is, in the present invention, the above-described defects of the prior art are improved, a plurality of types of wind damage countermeasure technologies are systematically combined, and the plurality of types of control means provided in the wind power generator are organically combined. By interlocking with each other, the shortcomings of each technology can be compensated for each other, and the moment related to the wind turbine generator can be controlled by controlling the rotation speed of the wind turbine unit, so that it can be operated safely and for a long time against wind damage. It was learned that a wind turbine generator can be provided, and at the same time, a method for controlling the wind turbine generator 6.
Accordingly, the wind power generator 1 that is a target in the present invention is a medium-sized or small-sized wind power generator, and the manufacturing cost is low, and the maintenance cost can be reduced without reducing the power generation efficiency. This is a wind power generator 1 that can efficiently prevent damage caused by wind power.
That is, the wind turbine generator 1 according to the present invention is a specific example in which it is desirable to have a small or medium size standard in which the maximum diameter of the wind turbine portion configured by the plurality of blades is 16 m or less. .

Although the structure in the basic individual parts of the wind power generator 1 according to the present invention is not specified, basically, the height of 5 m to 12 m from the ground surface as shown in FIG. A nacelle having a suitable structure and design and having a suitable structure or design, and a nacelle that is rotatably mounted on an upper end surface portion 21 of the relevant strut 2 via an appropriate rotation support member 50. A portion 3 is provided, and a pair of support means 5, 5 disposed on an appropriate portion of the rotation plane portion 4 of the nacelle portion 3 on the rotation plane portion 4 on the upper surface of the nacelle portion 3. A windmill portion 9 having a rotating shaft portion 6 supported in parallel with the rotating plane 4 and a plurality of blade portions 8 fixed to one end portion of the rotating shaft portion 6. Furthermore, it is provided at an appropriate part of the rotary shaft 6. One end portion 12 is engaged with the rotation transmission mechanism portion 11 and the rotation transmission mechanism portion 11, and the central axis line 8 ′ is disposed so as to hang down inside the column portion 2. The power generation means 16 connected to the lower end 15 of the rotation transmission shaft portion 14 and the appropriate portion between the rotation transmission mechanism portion 11 and the power generation means 16 in the rotation transmission shaft 14 are arranged. It is desirable to include a mechanical brake means 17 that controls the rotation of the rotation transmission shaft portion 15.

The mechanical brake means 17 used in the present invention is not particularly limited, and any mechanical brake means that is generally used can be used. It is preferable to use a simple and inexpensive brake means utilizing the above.
Hydraulic brake means or the like is not a preferable brake means because the mechanism is complicated, maintenance is complicated and expensive.
As will be described later, the mechanical brake means 17 according to the present invention is basically incorporated in a system controlled by computer program control, but is extremely urgent. In addition, a manual emergency stop means 50 may be separately connected in order to allow the on-site worker to forcibly stop the rotation of the wind turbine unit 9 by his / her own judgment. .

On the other hand, the regenerative brake control means 22 used in the present invention can also use a regenerative brake control means generally used, and in response to predetermined information, the power generation means 17 It is desirable to include a changeover switch means 52 connected to a suitable load means 51 for applying a predetermined load to the load.
On the other hand, as a specific example of the configuration of the wind power generator 1 according to the present invention, as shown in FIG. 1, a control rotation for accurately rotating the disk-shaped nacelle portion 3 in an arbitrary direction by an arbitrary angle. The motor unit 19 is provided in a part of the support column, and the control rotation motor unit 19 is provided with a pinion 54 having an appropriate gear at the tip of the rotation output shaft unit 53, and the pinion 54 However, by engaging with the gear portion 56 provided on the peripheral edge of the disc-shaped nacelle portion 3, the nacelle portion 3 is configured to be arbitrarily controlled in rotation.

That is, in the present invention, the predetermined gear means 18 is configured by the pinion 54 and the gear portion 56 provided at the peripheral edge portion of the nacelle portion 3.
The configuration of the control rotary motor unit 19 is not specified, and any structure can be used as long as it is a well-known electric motor means capable of finely controlling the rotation speed or having performance. It goes without saying that it is possible.
Further, in the present invention, in order to confirm at which position the nacelle part 3 is present, for example, a predetermined part of the column part 2 and a preset in the nacelle part 3 are set. It is also preferable to provide a nacelle portion position detecting means 60 for measuring the position of the measurement site of the nacelle unit 3 with respect to the origin portion determined from the measurement site to be measured. It is.
The nacelle position detection means 60 is not particularly limited in its structure or system. For example, an appropriate code mark is attached to the peripheral part of the nacelle part 3, and the code mark is optically or electromagnetically attached. It is also possible to employ a system configured to grasp the turning position information of the nacelle section 3 by means of an encoder means that reads automatically.

Further, in the present invention, the wind speed / wind direction measuring means 20 is provided on a part of the support column, and the configuration of the wind speed / wind direction measuring means 20 is not particularly limited. Any device can be used as long as it has a function capable of measuring the wind direction, converting the information into digital data, and transmitting it to the wind power generator control means 24 described later.
Further, in the present invention, in order to measure the rotation speed of the power generation means 16 corresponding to the rotation speed of the wind turbine section 10, the power generation means rotation speed measurement means 23 is provided at an appropriate portion of the rotation transmission shaft portion 14. It is a specific example that it is desirable to be provided.

The configuration of the power generation means rotation speed measurement means 23 used in the present invention is not particularly limited, but the rotation speed of the wind turbine unit 10 is measured and the information is converted into digital data, which will be described later. Any device can be used as long as it has a function of transmitting to the wind power generator control means 24.
As another specific example in the present invention, in order to directly measure the rotational speed of the wind turbine unit 10 instead of the power generating means rotational speed measuring means 23 in order to achieve the object of the present invention. It is also a desirable specific example that the wind turbine rotation speed measuring means 23 ′ is provided at an appropriate part of the rotating shaft portion 6.

In the present invention, the relatively heavy members such as the power generation means 16, the mechanical brake means 17, and the control rotary motor portion 19 are appropriately supported frames or support plates provided inside the support column portion 2. It is desirable to hold them individually by any one of 61 to 64.
Further, the rotation transmission mechanism unit 11 used in the present invention is the rotation transmission shaft arranged accurately and orthogonally to the rotational movement of the rotation shaft unit 6 rotated by the windmill unit 10. Although it has a mechanism for transmitting to the unit 14 and its configuration is not particularly limited, any configuration that can accurately perform the above functions can be used. Is possible.
For example, it is desirable to use means that uses a rotary motion transmission mechanism using a cross shaft gear mechanism, a worm gear gear mechanism, or the like.

Furthermore, in the present invention, the wind turbine unit 10 of the wind turbine generator 1 can be rotated efficiently according to the information on the wind speed and the wind direction without reducing the power generation efficiency. A wind power generator control means 24 is provided separately for performing appropriate control in order to drive to prevent the occurrence of wind damage under energy saving conditions.
The wind power generator control means 24 has a storage means 70 containing a preset control program for the wind power generator 1 as described later, and the power generation means rotation speed measuring means 23 described above. (In some cases, the wind turbine rotational speed measuring means 23 ') is electrically connected to the wind speed / wind direction measuring means 20 so that the latest measurement data is always received from the measuring means 23 and 20. It is configured.

On the other hand, the wind power generator control means 24 is electrically connected to the mechanical brake means 17, the regenerative brake control means 22, and the control rotation motor unit 19, and the wind power generator control means 24 is Based on the latest data received from the power generation means rotation speed measurement means 23 or the wind speed / wind direction measurement means 20, an appropriate calculation means (CPU) 71 provided in the wind power generator control means 24, Various control data, which are the results calculated using the control program stored in the storage means 70, are stored in the mechanical brake means 17, the regenerative brake control means 22, and the control rotary motor unit 19. It is configured to transmit to at least one selected one and execute control of the selected controlled means.

As a more specific configuration of the wind power generator 1 in the present invention, the regenerative brake control means 22 includes the wind speed information output by the wind speed / wind direction measuring means 20 and the power generation means rotation speed measuring means 23. It is preferable that the control is performed in response to the rotational speed information of the power generation means 16 output by the above.
On the other hand, in the wind turbine generator 1 according to the present invention, the mechanical brake means 17 is preferably controlled in response to the wind speed information output by the wind speed / wind direction measuring means. It is a specific example.

Further, the control rotary motor unit 19 in the present invention includes the wind speed information output from the wind speed / wind direction measuring unit, the wind direction information, and the nacelle unit output from the nacelle position detecting unit 60 provided separately. In a preferred embodiment, the current position information is controlled in response to at least one piece of information.
Further, the wind power generator control means 24 in the present invention is provided with a storage means 70 containing a preset program for executing at least some of the control operations described above. This is a preferred embodiment.
On the other hand, the wind power generator 1 according to the present invention is further preferably provided with a nacelle position detecting means 60 for detecting current position information of the nacelle part 3.

Further, in the wind power generator control means 24 in the present invention, the wind speed / wind direction measuring means 20 and the power generating means rotation speed measuring means 23 (according to circumstances) transmitted to the wind power generator control means 24 are included. The wind turbine rotation speed measuring means 23 ') and at least one of the latest measurement data from the control rotary motor unit 19 and the like are displayed in real time, and the mechanical brake means 17, the regenerative brake control means 22 and There may be provided monitoring means 72 for displaying the current driving status of the control rotary motor unit 19 in real time, and further, the wind power generator control means 24 is executed by the software. Manual operation to allow the operator to manually operate the control and perform the desired control on an ad hoc basis as needed. Be one board portion 73 is provided may be.

In the manual operation board unit 73, when an emergency occurs, it is necessary for an operator to immediately stop the rotation of the wind turbine unit 10 or the rotation of the power generation unit 16 in the wind power generator 1. In this case, for example, an emergency switch means 101 for forcibly stopping either the mechanical brake means 17 and / or the power generation means 16 is also a preferable specific example.
1 is an appropriate battery means for accumulating the electric power generated by the power generation means 16.

By the way, the inventor of the present application will improve the above-described problems of the prior art and develop a practical, inexpensive and economical wind power generator, particularly in the medium and small wind power generators 1. At the same time, in order to prevent the wind turbine generator from being damaged due to wind damage, many experiments and tests have been conducted in earnest, and as a result, the rotation of the wind turbine unit 10 is finely controlled step by step in response to the wind speed. As a result, the structure of a wind power generation apparatus that is simple, economical, and can be practically used for a long period of time and its control method have been known.
For example, as a result of studying the rotation control method of the blade 9 during normal and strong winds of the wind power generator 1, the entire nacelle unit 3 is rotated by the rotary gear 53 and the control rotary motor unit 19, and the normal wind direction is normal. It was found that it is one of the desirable control methods to control in the direction of 90 degrees with respect to the wind direction in a strong wind and in a non-facing state.

In another experimental result, when the rotational speed of the blade portion 9 of the wind power generator 1 is increased by a strong wind and increases to a certain rotational speed, an appropriate load is applied to the power generation means 16. As a result, it has been found that it is desirable to provide a mechanism that suppresses the rotation speed of the generator 16 and suppresses the rotation speed of the interlocking blade portion 9.
Further, from other experimental results, when the wind power generator 1 is inspected or when the wind speed is low and the wind speed does not reach the rotation start wind speed of the wind turbine section 10, the rotating shaft section 6 is forcibly tightened to generate the power. It was found that it is desirable to provide a mechanism for completely stopping the rotation of the means 16 and the wind turbine unit 10.

In order to achieve the object of the present invention, as a result of further numerous experiments, the present invention pursues an appropriate control condition for the wind speed of the wind turbine generator 1 based on the above various findings. Has obtained further knowledge that the control conditions are preferable as shown below.
That is, for example, at a normal wind speed, that is, about 10 m or less, the wind power generator can be continuously generated without any problem as long as it is designed and manufactured according to a predetermined standard.
However, when a wind exceeding 10 m is blown, an irregular gust of wind is generated, and an abnormal load or impact load is applied to the entire wind power generator, and it has recently been generated from a wind speed of 30 m as when passing through a typhoon. Even when the wind speed is 70 m, a load moment that cannot be clarified by the structural calculation as described above is generated.

Therefore, first, for example, at a wind speed of about 0 m to 3 m, there is no energy that exhibits power generation capability even if the wind turbine unit 10 having the blade 9 starts to rotate. It has been found that 10 is preferably a mechanism that does not rotate.
Even if the wind speed is, for example, about 0 m to 3 m, the wind turbine unit 10 normally rotates and slightly generates power. However, for that purpose, various control means are separately driven, so that extra power is generated. Since there is a problem that it is consumed, in order to save the extra power consumption, it is one of the desirable specific examples that the rotation of the wind turbine unit 10 is intentionally stopped at this stage. .
For example, by releasing the driving of the brake means 17 when the wind speed exceeds 3 m, the wind turbine unit 10 and the power generation unit 16 become free, and the rotation of the wind turbine unit 10 is started.
Further, for example, when the wind speed is about 4 m, power generation energy is generated from the power generation means 16, so that the power generation of the power generation means 16 is started and the state is called cut-in.

In the present invention, the wind speed level is defined as the first threshold value X1, and for example, the first threshold value X1 can be set to 3 m of wind speed.
At the same time, it has been found that it is a desirable specific example to sense the wind direction obtained from the wind speed / wind direction measuring means 20 and control the wind turbine unit 10 together with the nacelle unit 3 so as to always face the wind direction. .
Further, as a result of examination, for example, although the wind speed is maintained up to about 10 m, for example, when the wind speed exceeds about 10 m, the rotational speed of the wind turbine unit 10 is increased and a lot of centrifugal force is generated. It has been found that the load moment related to the support column 2 increases.

Therefore, in the present invention, such a wind speed level is defined as the second threshold value X2, and for example, the second threshold value X2 can be set to a wind speed of 10 m.
Therefore, in order to reduce the rotational speed of the wind turbine unit 10 from this side, for example, the present invention provides an appropriate generator when the rotational speed rises above a certain rotational speed based on the rotational speed information of the power generation means 16. The control means, for example, the regenerative brake control means 22 using the load current is operated, specifically, the appropriate switch means 52 provided in the regenerative brake control means 22 is driven, and the appropriate pseudo load is driven. Another preferred control method is to connect the device 51 to the power generation means 16 and control the power generation means 16 to have a safe rotation speed by reducing the rotation speed of the power generation means 16 by applying a load. Things turned out.

That is, a predetermined threshold value is required for the rotational speed of the wind turbine unit or the rotational speed of the power generation means 16 that needs to be determined at this stage.
In the present invention, this threshold value is set to the rotation speed reference value Y. Specifically, it can be set to 60 rpm in terms of the rotation speed of the wind turbine unit 10, for example. .
Further, according to the experiment result of the present inventor, when the wind speed is, for example, 16 m or more, the wind turbine unit 10 again has a high rotational speed even though the similar load device 51 is operating. Will rotate.

Therefore, in the present invention, such a wind speed level is defined as a third threshold value X3, and for example, the third threshold value X3 can be set to a wind speed of 16 m.
Therefore, the inventor needs the nacelle unit 3 via the gear train 18 by operating the control rotary motor unit 19 based on the wind speed signal sent from the wind speed / wind direction measuring unit 20. By rotating the wind turbine unit 10 by a specific angle, the wind receiving plane part of the wind turbine part 10 or the central axis 8 of the rotary shaft part 6 is rotated and displaced by 90 degrees from the wind direction, and the operation of making them non-facing to the wind direction is performed. We have obtained knowledge that this is also a desirable control method.

Further, as a result of continuing further additional experiments, the present invention adopts such a control method. As a result, even if wind force with a wind speed of around 70 m is generated, the wind turbine unit 10 remains at a low speed and strong winds are generated. It turns out that it will continue to operate safely until it disappears.
After that, it was found that it is one of the specific examples that it is desirable to control to automatically return to the normal operation based on the signal from the wind speed / wind direction measuring means 20 again when the strong wind is over. .

The present invention organically combines the rotation control methods for a plurality of types of wind turbine units 10 based on the above-described many experimental results, and uses each operation procedure and each operation result in cooperation with each other. , Combined to produce maximum efficiency.
In other words, the present invention uses the wind turbine unit control software programmed so that the control processing is automatically executed by linking the above-described plurality of control methods to each other, and the operation of the software It is a feature of the present invention that the rotational speed of the wind turbine unit 10 in the wind power generator 1 is automatically controlled by normal operation.

The specific numerical values of the first threshold value X1, the second threshold value X2, and the third threshold value X3, and further the rotation speed reference value Y used in the present invention are particularly set in advance. The wind power generator 1 is not set, but is appropriately changed depending on the configuration and performance of the wind power generator 1 or the environmental conditions in which the wind power generator 1 is installed, but the wind power generator 1 according to the present invention described above. When the various test data related to the above are combined, the first threshold value X1 is preferably set to 2 to 4 m, for example, and the second threshold value X2 is set to 8 m to 12 m, for example. Further, it is preferable that the third threshold value X3 is set to, for example, 15 m to 18 m.

On the other hand, the rotation speed reference value Y is preferably set to 40 rpm to 80 rpm, for example.
That is, the basic technical configuration in the second aspect according to the present invention is, for example, a column part 2, a nacelle part 3 that is rotatably attached to the uppermost step part 21 of the column part 2 in a horizontal plane, One of the rotating shaft part 6 and the rotating shaft part 6 which is rotatably mounted on the rotating surface 4 of the nacelle part 3 in parallel with the plane of the nacelle part 3 through appropriate support means 5 and 5. Is provided at an appropriate portion of the rotary shaft 6 at a wind turbine portion 10 composed of a plurality of blade portions 9 disposed in a direction orthogonal to the central axis 8 of the rotary shaft 6. The rotation transmission mechanism 11 and the rotation transmission mechanism 11, one end of which is engaged with the rotation transmission mechanism 11, and the rotation transmission shaft that is arranged so that the center axis 13 hangs down inside the column 2. 14 is connected to the lower end portion 15 of the rotation transmission shaft portion 14. The power generation means 16 and the rotation transmission shaft 14 are arranged at an appropriate position between the rotation transmission mechanism 11 and the power generation means 16. A mechanical brake means 17 for controlling the number of revolutions, a control rotary motor part 19 that is provided at an appropriate part of the support column 2 and controls the rotation of the nacelle part 3 via an appropriate gear unit 18, Wind speed / wind direction measuring means 20 provided at appropriate parts, regenerative brake control means 22 for applying regenerative brake to the power generation means 16, and power generation for measuring the rotation speed of the power generation means 16 corresponding to the rotation speed of the wind turbine section. The means rotational speed measuring means 23 or the wind turbine rotational speed measuring means 23 'provided at an appropriate part of the rotary shaft 6 in order to directly measure the rotational speed of the wind turbine part. In the constructed wind power generator 1, at least one of the control rotation motor unit 19, the regenerative brake control means 22 and the mechanical brake means 17 is the wind speed / wind direction measurement means 20 and the power generation means rotation speed measurement. In response to at least one information selected from the wind speed information, the wind direction information, and the power generation means 16 or the rotational speed information of the wind turbine unit 10 sequentially obtained from the means 23 or the wind turbine rotational speed measurement means 23 ′, It is an operation control method characterized by being configured to be controlled so that the rotational speed of the wind turbine unit 10 is regulated within a predetermined range.

That is, in the wind power generator 1 according to the present invention, instead of the power generation means rotation speed measurement means 23, the rotation speed of the wind turbine unit 10 corresponding to the rotation speed of the power generation means 16 is measured. The wind turbine rotational speed measuring means 23 ′ is provided on at least a part of the rotating shaft portion 6 connected to the wind turbine section 10, and the power generating means rotational speed measuring means 23 for measuring the rotational speed of the power generating means 16. It is also a desirable specific example that the output information is replaced with the output information of the wind turbine rotation speed measuring means 23 ′.

In the present invention, as will be described later, at least two different threshold values Xn different from each other are set in the wind speed information output from the wind speed / wind direction measuring means 20. Things are desirable.
On the other hand, in the present invention, as described later, the rotational speed information of the power generation means 16 output from the power generation means rotational speed measurement means 23 or the windmill output from the windmill rotational speed measurement means 23 ′ or the like. It is desirable that at least one kind of predetermined rotational speed reference value Y is set in the rotational speed information of the unit 10.

As a more specific configuration of the operation control method of the wind power generator in the second aspect of the present invention, when the wind speed is equal to or less than a predetermined first threshold value X1, the mechanical brake means The first step of activating the wind turbine unit 10 to stop the rotation of the wind turbine unit 10, the center of the rotating shaft unit 6 in the wind turbine unit 10 when the wind speed exceeds the first threshold value X1 A second step of controlling the control rotation motor unit 19 so that the nacelle unit 3 is turned by a predetermined rotation angle so that the axis 8 coincides with the wind direction indicated by the wind direction information; The third step of releasing the mechanical brake means 17 and permitting the rotation of the windmill unit 10 when the first threshold value X1 is not less than the first threshold value X1 and the predetermined second threshold value X2 is not exceeded. , The wind speed is the predetermined second When the value is equal to or greater than X2 and does not exceed the predetermined third threshold value X3, and the wind turbine rotation speed or the rotation speed of the power generation means is the power generation means rotation speed measurement means 23 or the wind turbine rotation In the case where the rotational speed reference value Y is set to be greater than or equal to the rotational speed reference value Y set in the number measurement means 23 ′, the regenerative brake control means 22 is released, and the wind speed is the fourth step of continuing the rotation of the windmill unit 10. When the predetermined second threshold value X2 or more and not exceeding the predetermined third threshold value X3, the wind turbine rotational speed or the rotational speed of the power generation means is the power generation means rotational speed measurement means or A fifth step of reducing the rotational speed of the wind turbine unit 10 by driving the regenerative brake control means 22 when the rotational speed reference value Y is not less than the rotational speed reference value Y set in the wind turbine rotational speed measuring means; When the speed is equal to or higher than the predetermined second threshold value X2 and exceeds the predetermined third threshold value X3, the wind direction information indicates the central axis 8 of the rotating shaft portion 6 in the windmill portion 10. Wind power generation configured from a sixth step of controlling the control rotation motor unit 19 so as to turn the nacelle unit 3 by a predetermined rotation angle so as to be set in a direction orthogonal to the wind direction shown. This is an operation control method for the apparatus.

Hereinafter, an example of a specific procedure of the operation control method for the wind turbine generator according to the second aspect of the present invention described above will be described in detail with reference to the flowchart of FIG.
That is, after the start, it is determined in step 1 (S1) whether or not it is in the power generation mode. If NO in step 1 (S1), that is, it is determined that the power generation operation is stopped. If it is NO, it becomes END. If YES in step 1 (S1), the process proceeds to step 2 (S2), and the wind speed measurement operation is started.
Next, the process proceeds to step 3 (S3), where it is determined whether or not the value of the wind speed is equal to or less than the first threshold value X1, and if YES, the process proceeds to step 4 (S4) and the mechanical brake means 17 is reached. In step 5 (S5), the rotation of the wind turbine unit 10 is forcibly stopped, and then the process returns to step 1 (S1) to continue the above operations.

On the other hand, if the answer is NO in step 3 (S3), the process proceeds to step 6 (S6) to measure the wind direction, and in step 7 (S7), the rotation shaft 6 of the windmill unit 10 is measured. It is determined whether or not the central axis coincides with the measured direction information of the wind direction, and if NO, the process proceeds to step 8 (S8) to control the control rotary motor unit 19 to control the nacelle unit 3 The yaw rotation is performed, and the turning operation is performed so that the center axis of the rotation shaft 6 of the windmill unit 10 and the measured direction information of the wind direction coincide with each other, and then the process returns to Step 7 (S7).
In step 7 (S7), it is determined again whether or not the center axis of the rotating shaft 6 of the wind turbine unit 10 matches the measured direction information of the wind direction. If NO, the above operation is repeated. If YES, the process proceeds to step 9 (S9) to determine whether or not the current wind speed is equal to or lower than the second threshold value X2.

If “YES” in the step 9 (S9), the process proceeds to a step 10 (S10), the mechanical brake means 17 is released (OFF), and the process proceeds to a step 11 (S11) to start the rotation of the wind turbine unit 10. In step 12 (S12), the power generation operation of the power generation means 16 is continued, and then the process returns to step 1 (S1) to continue each operation described above.
On the other hand, if “NO” in the step 9 (S9), the process proceeds to a step 13 (S13) to determine whether or not the wind speed at that time is equal to or lower than the third threshold value X3, and the step 13 (S13). If YES, the process proceeds to step 14 (S14), and an operation for measuring the rotational speed of the wind turbine unit 10 is executed. Thereafter, the process proceeds to step 15 (S15), and the wind turbine unit 10 at that time is It is determined whether or not the rotational speed is greater than the rotational speed reference value Y. If NO, the process proceeds to step 16 (S16) to release the regenerative brake control means 22, and then step 1 (S1). Returning to, each operation described above is continued.

On the other hand, if “YES” in the step 15 (S15), the process proceeds to a step 17 (S17) to operate the change-over switch means 52 in the regenerative brake control means 22 to operate the appropriate load means 51. Is applied to the power generation means 16 to drive the regenerative brake to reduce the rotation speed of the power generation means 16 or the rotation speed of the wind turbine unit 10, and then the process returns to step 15 (S15). Each of the above steps is repeated.
If NO in step 13 (S13), the process proceeds to step 18 (S18), the wind speed at that time is measured, and it is certain that the wind speed is equal to or higher than the third threshold value X3. Then, the process proceeds to step 18 (S18), and the nacelle part 3 is driven and controlled so that the rotating shaft part 6 of the windmill part 10 is in a state orthogonal to the wind direction at that time. Then, the turning operation is executed with a necessary rotation angle, and then the operation proceeds to step 19 (S19) to continue the operation of rotating the wind turbine unit 10 at a low speed, and then the operation returns to step 1 (S1) to Each operation is continued.

As described above, according to the present invention, it is possible to effectively and economically prevent accidents caused by wind in a small-sized or medium-sized wind power generation apparatus that frequently caused accidents. As a result, it is possible to provide a small-sized or medium-sized wind power generator with high reliability, and at the same time, the wind power generator according to the present invention can generate natural power without generating pollution when generating power with wind power. Energy can be efficiently and inexpensively converted to electric power.

DESCRIPTION OF SYMBOLS 1 ... Wind power generator 2 ... Column part 21 ... Uppermost step part 3 ... Nacelle part 4 ... Rotation plane 5 ... Support means 6 ... Rotating shaft part 7 ... One end 8 of the said rotating shaft part ... Rotating shaft part The central axis 8 'of the rotation transmission shaft portion 9 ... the blade portion 10 ... the windmill portion 11 ... the rotation transmission mechanism portion 14 ... the rotation transmission shaft portion 12 ... the one end portion 13 of the rotation transmission shaft portion ... the tail blade 15 ... rotation Lower end 16 of transmission shaft portion ... Power generation means 17 ... Mechanical brake means 18 ... Gear means 19 ... Control rotation motor part 20 ... Wind speed / wind direction measurement means 22 ... Regenerative brake control means 23 '... Windmill part rotation speed measurement means DESCRIPTION OF SYMBOLS 23 ... Electric power generation means rotation speed measurement means 24 ... Wind power generator control means 50 ... Rotation support member 60 ... Nacelle part position detection means 70 ... Storage means 72 ... Monitor means 73 ... Manual operation board part 71 ... CPU (arithmetic processing means)
51 ... Load means 52 ... Switching means 61-64 ... Support plate

The present invention basically adopts the following technical configuration in order to solve the above-described problems of the prior art and achieve the above-described object of the present invention.
That is, as a first aspect according to the present invention, a support column, a nacelle unit rotatably attached to the uppermost step of the support column in a horizontal plane, a rotation surface of the nacelle unit, In parallel with the plane, a rotary shaft portion that is rotatably mounted via an appropriate support means, and disposed at one end of the rotary shaft portion in a direction perpendicular to the central axis of the rotary shaft portion One end of the wind turbine unit composed of a plurality of blade portions, a rotation transmission mechanism unit provided at an appropriate portion of the rotation shaft, and the rotation transmission mechanism unit are engaged with each other. A rotation transmission shaft portion arranged so as to hang down from the inside of the column portion, power generation means connected to the lower end portion of the rotation transmission shaft portion, the rotation transmission mechanism portion in the rotation transmission shaft, and the Appropriate part between the power generation means A mechanical brake means for controlling the rotation of the rotation transmission shaft portion, and a control rotation motor portion which is provided at an appropriate portion of the support column portion and controls the rotation of the nacelle portion via an appropriate gear means. Wind speed / wind direction measuring means for measuring wind speed and wind direction provided at appropriate portions of the struts, regenerative brake control means for applying a regenerative brake to the power generating means, and power generating means rotation for measuring the rotation speed of the wind turbine part And a nacelle position detecting means for detecting current position information of the nacelle section, and further, the wind speed / wind direction measuring means, the power generation means rotation speed measuring means, and the nacelle position detecting means , receiving the latest measurement information from, in response to the latest of each measurement information, the control rotation motor section, the regenerative braking control means and said mechanical brake means Next, it is a wind power generator provided with a wind power generator control means that functions to control individually or simultaneously combined, and the regenerative brake control means is controlled by the wind speed / wind direction measuring means. It is configured to be controlled in response to the output wind speed information and the rotation speed information of the wind turbine unit output by the power generation means rotation speed measurement means, and the mechanical brake means, It is configured to be controlled in response to the wind speed information output by the wind speed / wind direction measuring means, and the control rotation motor unit is configured to control the wind speed information output from the wind speed / wind direction measuring means, It is configured to be controlled in response to at least one information of the wind direction information and the nacelle part current position information output from the nacelle part position detecting means. In addition, the second aspect of the present invention includes a support column, a nacelle unit rotatably attached to the uppermost step of the support column in a horizontal plane, and a rotation surface of the nacelle unit, A rotating shaft portion that is rotatably mounted via an appropriate support means in parallel with the plane of the nacelle portion, a direction orthogonal to the central axis of the rotating shaft portion at one end of the rotating shaft portion A windmill portion composed of a plurality of blade portions, a rotation transmission mechanism portion provided at an appropriate portion of the rotation shaft, and one end portion engaged with the rotation transmission mechanism portion, A rotation transmission shaft portion arranged so that its central axis hangs down from the inside of the column portion, power generation means connected to the lower end portion of the rotation transmission shaft portion, and the rotation transmission mechanism in the rotation transmission shaft Between the power generator and the power generation means Mechanical brake means for controlling the rotation of the rotation transmission shaft portion disposed at the position, and a control rotation motor provided at an appropriate part of the support column portion and controlling the rotation of the nacelle portion via an appropriate gear means , Wind speed / wind direction measuring means for measuring the wind speed and wind direction provided at appropriate portions of the struts, regenerative brake control means for applying a regenerative brake to the power generation means, and power generation means for measuring the rotation speed of the windmill part A rotation speed measuring means, a nacelle position detecting means for detecting current position information of the nacelle section, and a wind speed / wind direction measuring means, a power generation means rotation speed measuring means, and a nacelle position detecting means. Receiving the latest measurement information from the control unit, and responding to the latest measurement information, the control rotary motor unit, the regenerative brake control means, and the mechanical brake means A wind power generation apparatus provided with wind power generator control means that functions to control sequentially, individually or simultaneously, and the regenerative brake control means is controlled by the wind speed / wind direction measuring means. It is configured to be controlled in response to the output wind speed information and the rotation speed information of the wind turbine unit output by the power generation means rotation speed measurement means, and the mechanical brake means, It is configured to be controlled in response to the wind speed information output by the wind speed / wind direction measuring means, and the control rotation motor unit is configured to control the wind speed information output from the wind speed / wind direction measuring means, In a wind turbine generator configured to be controlled in response to at least one information of wind direction information and the nacelle part current position information output from the nacelle part position detection means, For the wind speed information output from the wind speed / wind direction measuring means, at least three types, which are set to different predetermined values from the low speed level to the high speed level according to the wind speed, that is, The first threshold value, the second threshold value, and the third threshold value are set. On the other hand, the rotation speed information of the power generation means output from the power generation means rotation speed measurement means is at least one kind. A reference value set to a predetermined value is set in advance, and the latest wind speed information and wind direction sequentially output from each of the wind speed / wind direction measuring means, the nacelle position detecting means, and the power generation means rotation speed measuring means, respectively. Information, the nacelle part current position information and the rotation speed information of the power generation means are sequentially received, and the latest wind speed information is individually compared with the first threshold value to the third threshold value. result Correspondingly, the mechanical brake means
On / off control, and according to the comparison result, the rotation speed information of the power generation means is further compared with the reference value, and the regenerative brake means is turned on / off according to the comparison result. In accordance with the comparison result, the control rotation motor unit is controlled in consideration of the wind direction information so that the rotation speed of the wind turbine unit is regulated within a predetermined range. It is the operation control method of the wind power generator characterized by being comprised so that it may be controlled.

The configuration of each specific example of the wind turbine generator and the method for controlling the wind turbine generator according to the present invention will be described in detail below with reference to the drawings.
First, the configuration of a specific example of the wind turbine generator 1 according to the present invention will be described.
That is, FIG. 1 is a side view showing the configuration of a specific example of the wind turbine generator 1 according to the present invention. In the figure, the support column 2 and the uppermost step portion 21 of the support column 2 are arranged in a horizontal plane. Rotatingly attached to the nacelle part 3 that is rotatably attached, on the rotational plane 4 of the nacelle part 3, in parallel with the rotational plane 4 of the nacelle part 3 via appropriate support means 5. A wind turbine unit 10 including a plurality of blade units 9 disposed in a direction orthogonal to the central axis 8 of the rotation shaft unit 6 at one end 7 of the shaft unit 6 and the rotation shaft unit 6; One end portion 12 is engaged with the rotation transmission mechanism portion 11 provided at an appropriate part of the rotation shaft 6 and the rotation transmission mechanism portion 11, and the central axis 8 ′ is the inside of the column portion 2. Rotation transmission shaft portion 14 arranged so as to hang down, the rotation transmission shaft The power generation means 16 connected to the lower end 15 of the portion 14 and the rotation transmission disposed at an appropriate portion of the rotation transmission shaft 14 between the rotation transmission mechanism 11 and the power generation means 16. A mechanical brake means 17 for controlling the rotation of the shaft portion 14, a control rotation motor portion 19 provided at an appropriate part of the support column portion 2 and controlling the rotation of the nacelle portion 3 via an appropriate gear device 18, the support column Wind speed / wind direction measuring means 20 provided at appropriate parts of the unit 2, regenerative brake control means 22 for applying a regenerative brake to the power generation means 16, and power generation means rotation speed measurement means 23 for measuring the rotation speed of the power generation means 16 , Receiving the latest measurement information from the wind speed / wind direction measurement means 20 and the power generation means rotation speed measurement means 23, and responding to the latest measurement information, the control rotary motor unit 9, the regenerative braking control means 22 and the mechanical wind turbine generator 1 and a wind power generator control unit 24 for functioning so as to control at least one brake means 17 is shown.

In FIG. 1, reference numeral 13 denotes a flat tail for wind direction provided on a part of the appropriate support means 5 on the nacelle section 3, which is made of an arbitrary material. The flat portion of the flat plate 13 is arranged and attached so as to be perpendicular to the flat portion of the nacelle portion 3, and the flat portion of the flat plate of the tail 13 is provided in the nacelle portion 3. It is arranged in a direction that coincides with the direction of the central axis of the rotary shaft portion 6 that is rotatably arranged between the pair of support means 5, 5.

That is, in the present invention, the above-described defects of the prior art are improved, a plurality of types of wind damage countermeasure technologies are systematically combined, and the plurality of types of control means provided in the wind power generator are organically combined. By interlocking with each other, the shortcomings of each technology can be compensated for each other, and the moment related to the wind turbine generator can be controlled by controlling the rotation speed of the wind turbine unit, so that it can be operated safely and for a long time against wind damage. It was learned that a wind turbine generator can be provided, and at the same time, a method for controlling the wind turbine generator 6.
Accordingly, the wind power generator 1 that is a target in the present invention is a medium-sized or small-sized wind power generator, and the manufacturing cost is low, and the maintenance cost can be reduced without reducing the power generation efficiency. This is a wind power generator 1 that can efficiently prevent damage caused by wind power.
That is, the wind turbine generator 1 according to the present invention is a specific example in which it is desirable to have a small or medium size standard in which the maximum diameter of the wind turbine portion configured by the plurality of blades is 16 m or less. .

The mechanical brake means 17 used in the present invention is not particularly limited, and any mechanical brake means that is generally used can be used. It is preferable to use a simple and inexpensive brake means utilizing the above.
Hydraulic brake means or the like is not a preferable brake means because the mechanism is complicated, maintenance is complicated and expensive.
As will be described later, the mechanical brake means 17 according to the present invention is basically incorporated in a system controlled by computer program control, but is extremely urgent. In addition, a manual emergency stop means 55 may be separately connected in order to allow an on-site worker to forcibly stop the rotation of the wind turbine unit 9 based on his / her own judgment. .

As a more specific configuration of the operation control method of the wind power generator in the second aspect of the present invention, when the wind speed is equal to or less than a predetermined first threshold value X1, the mechanical brake means The first step of activating the wind turbine unit 10 to stop the rotation of the wind turbine unit 10, the center of the rotating shaft unit 6 in the wind turbine unit 10 when the wind speed exceeds the first threshold value X1 A second step of controlling the control rotation motor unit 19 so that the nacelle unit 3 is turned by a predetermined rotation angle so that the axis 8 coincides with the wind direction indicated by the wind direction information; The third step of releasing the mechanical brake means 17 and permitting the rotation of the windmill unit 10 when the first threshold value X1 is not less than the first threshold value X1 and the predetermined second threshold value X2 is not exceeded. , The wind speed is the predetermined second When the value is equal to or greater than X2 and does not exceed the predetermined third threshold value X3, and the wind turbine rotation speed or the rotation speed of the power generation means is the power generation means rotation speed measurement means 23 or the wind turbine rotation When the rotational speed reference value Y is less than or equal to the rotational speed reference value Y set in the number measuring means 23 ′, the regenerative brake control means 22 is released, and the wind speed is the fourth step of continuing the rotation of the wind turbine unit 10. When the predetermined second threshold value X2 or more and not exceeding the predetermined third threshold value X3, the wind turbine rotational speed or the rotational speed of the power generation means is the power generation means rotational speed measurement means or A fifth step of reducing the rotational speed of the wind turbine unit 10 by driving the regenerative brake control means 22 when the rotational speed reference value Y is not less than the rotational speed reference value Y set in the wind turbine rotational speed measuring means; Wind Is greater than or equal to the predetermined second threshold value X2 and exceeds the predetermined third threshold value X3, the wind direction information indicates the central axis 8 of the rotating shaft portion 6 in the windmill portion 10. A wind power generator configured by a sixth step of controlling the control rotation motor unit 19 so as to turn the nacelle unit 3 by a predetermined rotation angle so as to be set in a direction orthogonal to the wind direction. This is an operation control method.

DESCRIPTION OF SYMBOLS 1 ... Wind power generator 2 ... Column part 21 ... Uppermost step part 3 ... Nacelle part 4 ... Rotation plane 5 ... Support means 6 ... Rotating shaft part 7 ... One end 8 of the said rotating shaft part ... Rotating shaft part The central axis 8 'of the rotation transmission shaft portion 9 ... the blade portion 10 ... the windmill portion 11 ... the rotation transmission mechanism portion 14 ... the rotation transmission shaft portion 12 ... the one end portion 13 of the rotation transmission shaft portion ... the tail blade 15 ... rotation Lower end 16 of transmission shaft portion ... Power generation means 17 ... Mechanical brake means 18 ... Gear means 19 ... Control rotation motor part 20 ... Wind speed / wind direction measurement means 22 ... Regenerative brake control means 23 '... Windmill part rotation speed measurement means DESCRIPTION OF SYMBOLS 23 ... Electric power generation means rotation speed measurement means 24 ... Wind power generator control means 50 ... Rotation support member 60 ... Nacelle part position detection means 70 ... Storage means 72 ... Monitor means 73 ... Manual operation board part 71 ... CPU (arithmetic processing means)
51 ... Load means 52 ... Switching means
55 ... Emergency stop means 61-64 ... Support plate

Claims (15)

A support part, a nacelle part rotatably mounted in a horizontal plane on the uppermost part of the support part, and a rotation surface of the nacelle part, which is rotated in parallel with the plane of the nacelle part, through appropriate support means A rotating shaft portion that is freely attached, a windmill portion that includes a plurality of blade portions disposed at one end of the rotating shaft portion in a direction orthogonal to the central axis of the rotating shaft portion, One end portion is engaged with the rotation transmission mechanism portion provided at an appropriate part of the rotation shaft, and the rotation transmission mechanism portion is arranged so that the central axis line hangs down the inside of the column portion. The rotation transmission shaft portion, the power generation means connected to the lower end of the rotation transmission shaft portion, and the rotation transmission shaft portion disposed at an appropriate portion between the rotation transmission mechanism portion and the power generation means. The rotation transmission shaft Mechanical brake means for controlling the rotation of the part, provided at an appropriate part of the support part, and a control rotation motor part for controlling the rotation of the nacelle part through an appropriate gear means, provided at an appropriate part of the support part Wind speed / wind direction measuring means, regenerative brake control means for applying regenerative brake to the power generation means, power generation means rotation speed measuring means for measuring the rotation speed of the wind turbine unit, wind speed / wind direction measurement means, and power generation means rotation speed Wind power generation that receives the latest measurement information from the measurement means and functions to control at least one of the control rotation motor unit, the regenerative brake control means, and the mechanical brake means in response to the latest measurement information A wind power generator characterized by comprising a machine control means. 2. The wind power generator according to claim 1, wherein the wind turbine generator has a small or medium size standard in which a maximum diameter of the wind turbine portion configured by the plurality of blades is 10 m or less. . The regenerative brake control means is controlled in response to the wind speed information output from the wind speed / wind direction measuring means and the rotation speed information of the wind turbine unit output from the power generation means rotation speed measuring means. The wind power generator according to claim 1 or 2, characterized by things. The wind turbine generator according to any one of claims 1 to 3, wherein the mechanical brake means is controlled in response to the wind speed information output by the wind speed / wind direction measuring means. The control rotary motor unit includes at least one information of the wind speed information output from the wind speed / wind direction measuring unit, the wind direction information, and the nacelle unit current position information output from the separately provided nacelle unit position detecting unit. The wind turbine generator according to any one of claims 1 to 4, wherein the wind turbine generator is controlled in response. The wind power generator control means is provided with a storage means containing a preset program for executing at least the control operation defined in any of claims 2 to 5. The wind power generator according to any one of claims 1 to 5. The wind power generator according to any one of claims 1 to 6, wherein the wind power generator is further provided with nacelle position detecting means for detecting current position information of the nacelle. The wind power generator according to any one of claims 1 to 7, wherein the wind power generator control means is provided with an operation board for execution by the wind power generator. The wind power generator control means includes the latest measurement result information of the wind speed / wind direction measurement means and / or the power generation means rotation speed measurement means and / or rotation position information of the nacelle section, operation information of the regenerative brake control means, and 9. The wind turbine generator according to claim 1, further comprising monitor means for displaying at least one latest information selected from operation information of the mechanical brake means. The rotational speed of the wind turbine unit is determined based on the output information of the wind turbine rotational speed measuring means provided on at least a part of the rotating shaft portion instead of the power generation means rotational speed measuring means. The wind power generator according to any one of claims 1 to 9. A support part, a nacelle part rotatably mounted in a horizontal plane on the uppermost part of the support part, and a rotation surface of the nacelle part, which is rotated in parallel with the plane of the nacelle part, through appropriate support means A rotating shaft portion that is freely attached, a windmill portion that includes a plurality of blade portions that are arranged at one end of the rotating shaft portion in a direction orthogonal to the central axis of the rotating shaft, One end is engaged with the rotation transmission mechanism portion provided at an appropriate part of the rotation shaft, and the rotation transmission mechanism portion is arranged so that the center axis line hangs down inside the column portion. The rotation transmission shaft portion, the power generation means connected to the lower end portion of the rotation transmission shaft portion, and the rotation transmission shaft portion disposed at an appropriate portion between the rotation transmission mechanism portion and the power generation means. , The rotation transmission shaft Mechanical brake means for controlling the rotation of the column, provided at an appropriate part of the column part, and a control rotation motor part for controlling the rotation of the nacelle part via an appropriate gear means, provided at an appropriate part of the column part. Wind speed / wind direction measuring means, regenerative brake control means for applying a regenerative brake to the power generation means, and power generation means rotation speed measurement means for measuring the rotation speed of the power generation means corresponding to the rotation speed of the wind turbine unit. In the wind power generator, wind speed information obtained by the at least one of the control rotation motor unit, the regenerative brake control means, and the mechanical brake means sequentially from the wind speed / wind direction measurement means and the power generation means rotation speed measurement means, etc. In response to at least one information selected from the wind direction information and the rotational speed information of the power generation means, the rotational speed of the wind turbine unit is regulated within a predetermined range. Operation control method of a wind turbine generator, characterized in that is configured as to be controlled to. The wind power generator operation control method according to claim 11, wherein at least two different threshold values are set in the wind speed information output from the wind speed / wind direction measuring means. The operation of the wind turbine generator according to claim 11 or 12, characterized in that at least one reference value is set in the rotation speed information of the power generation means output from the power generation means rotation speed measurement means. Control method. In place of the power generation means rotation speed measurement means, a wind turbine rotation speed measurement means for measuring the rotation speed of the wind turbine section corresponding to the rotation speed of the power generation means is connected to the wind turbine section. It is provided at least in part, and is configured to replace the output information of the power generation means rotation speed measurement means for measuring the rotation speed of the power generation means with the output information of the wind turbine rotation speed measurement means. The operation control method for a wind turbine generator according to any one of claims 11 to 14. In the operation control method of the wind turbine generator defined in any one of claims 11 to 14, when the wind speed is equal to or lower than a predetermined first threshold, the mechanical brake means is operated, In the first step of stopping the rotation of the windmill part, when the wind speed exceeds the first threshold, the central axis of the rotation shaft part in the windmill part is the wind direction direction indicated by the wind direction information A second step of controlling the control rotary motor unit so as to match, and if the wind speed is not less than the predetermined first threshold and does not exceed the predetermined second threshold, the machine A third step of releasing the type brake means and permitting the rotation of the windmill unit, wherein the wind speed is equal to or higher than the predetermined second threshold and does not exceed the predetermined third threshold. , The number of revolutions of the windmill or the power generation means When the rotation speed is equal to or greater than the rotation speed reference value set in the power generation means rotation speed measurement means or the wind turbine rotation speed measurement means, the regenerative brake control means is released and the wind turbine unit continues to rotate. A fourth step, wherein the wind speed is equal to or higher than the predetermined second threshold and does not exceed the predetermined third threshold, and the wind turbine rotational speed or the rotational speed of the power generation means is When the power generation means rotation speed measurement means or the wind turbine rotation speed measurement means is equal to or higher than the rotation speed reference value, the regenerative brake control means is driven to reduce the rotation speed of the wind turbine section. Step 5, when the wind speed is equal to or higher than the predetermined second threshold and exceeds the predetermined third threshold, the wind direction information indicates the central axis of the rotating shaft portion in the windmill portion. Wind direction shown As it will be set in a direction perpendicular, running control method for a wind turbine generator that is characterized in that is composed of a sixth step of controlling the rotation control motor unit.

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