JP2008163745A - Wind power generation device, wind power generation program, and information record medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve self-startability by reducing start resistance, drive only a generator suitable for a wind speed area without being accompanied by power loss in a low wind speed area and a middle wind speed area, and extend the lifetime of each generator. <P>SOLUTION: This device includes blades rotating according to wind power, generators M1, M2, and a rotary force transmission mechanism transmitting rotary force of the blades to each generator and connecting and separating the generators M1, M2 and the blades respectively. The device is provided with a connection and separation data acquisition means C1 for acquiring connection and separation data which can be references for connection and separation of the generators and the blades respectively, and a generator connection and separation means C4 connecting and separating the generators M1, M2 and the blades based on the acquired connection and separation data. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wind power generator, a wind power generation program, and an information recording medium that generate power by rotating a blade with wind power.

  Conventionally, so-called lift type wind turbines can obtain high output in the rated wind speed range, but have a drawback that the torque at the start is small, so that it is difficult to rotate and rise smoothly especially at low wind speeds. A wind turbine generator having the configuration described in Document 1 is disclosed.

  The wind turbine generator described in Patent Document 1 is provided with a centrifugal clutch on a windmill output rotating shaft, and in the case of a slight wind, only the windmill is idled to accumulate rotational energy, and when the windmill reaches a predetermined rotational speed, the centrifugal clutch By connecting the wind turbine output shaft to the generator input shaft by the centrifugal force acting on the wind turbine, the inertia force of the wind turbine was used to overcome the cogging resistance torque at the time of starting the generator and enable self-starting. is there.

However, the centrifugal clutch described above has a very small centrifugal force proportional to the square of the rotational speed when the rotational speed is low, so that it is difficult to reliably achieve the object depending on the rotational speed and the diameter limit.
Further, as disclosed in, for example, Patent Document 2, the Darrieus type windmill has a low self-starting ability because the generated torque is particularly weak at the time of starting. For this reason, a drag-type blade having a large generated torque even at a low speed. A technique is known in which the first starting is performed and the rotational torque generated in the lift type blade is transmitted to the generator by the clutch function after the rotation is increased.

In the above technology, the rotating shaft has an internal / external double structure, and at the start, the rotating shaft torque of the drag type blade is first connected to the generator input shaft by a one-way clutch, and the rotational speed is increased by the lifting type blade to increase the rotational speed. At the moment of catching up with the speed, the rotating shaft of the drag type blade is detached and the rotation starts to be delayed, and the generator input shaft is connected only to the rotating shaft of the lift type blade.
However, in this one-way clutch, the wind turbine output rotating shaft must have a double structure, and the structure becomes complicated. In addition, the drag type blade greatly affects the wind turbine performance, resulting in a decrease in overall wind turbine performance. It is not a good idea in terms of both manufacturing cost and performance.
JP 2002-327678 A JP-A-9-287549

  As another solution, it is possible to use an electromagnetic clutch or a friction clutch in the next position of the torque transmission coupling, but this method cannot eliminate this if the torque transmission coupling itself has a torque resistance. . Moreover, there is a problem that the clutch itself often generates output loss at all times.

  On the other hand, if the generator's rated output is set to a size corresponding to high wind speeds that are less frequently generated in order to recover valuable wind energy when strong winds blow, the starting torque will increase and it will become more difficult to start At the same time, there is always a large power loss at medium and low wind speeds, which occupies most of the operation. For this reason, the generator rated output of the wind turbine generator does not correspond to the generator output during strong winds, which is usually close to 20 (m / sec) in a small wind turbine generator.

  Therefore, the present invention aims to improve the self-startability as well as decrease the starting resistance, and can drive only the generator corresponding to the wind speed region without power loss at low wind speed and medium wind speed, An object of the present invention is to provide a wind turbine generator capable of extending the life of each generator, a wind turbine generator program, and an information recording medium recording the wind generator program.

The configuration of the present invention for achieving the above object is as follows.
The wind turbine generator according to claim 1 is a blade that rotates in accordance with wind power, a plurality of generators, and a rotation that transmits the rotational force of the blades to each generator and that allows each generator and blade to be separately connected to and separated from each other. And a force transmission mechanism, based on the contact / separation data acquisition means for acquiring contact / separation data for acquiring contact / separation data for contacting / separating each generator and blade separately. In addition, a generator contact / separation means is provided that allows each generator and the blade to contact / separate via a rotational force transmission mechanism.

  The wind turbine generator according to claim 2 is provided with a rotation speed detection sensor for detecting the rotation speed of the blade according to claim 1 and an anemometer. The peripheral speed ratio is obtained by acquiring the rotational speed of the blade output from the number detection sensor and the wind speed value output from the anemometer, and calculating the peripheral speed ratio of the blade based on the acquired wind speed value and the rotational speed. Calculation means is provided, and the generator contact / separation means performs contact / separation between the first generator and the blade based on the calculated peripheral speed ratio.

  The wind turbine generator according to claim 3 is provided with the anemometer in the wind turbine generator according to claim 1, and the contact / separation data acquisition means acquires the wind velocity value output from the anemometer, The generator contact / separation means performs contact / separation between the first generator and the blade based on the acquired wind speed value.

  The wind turbine generator according to claim 4 is provided with an output meter for measuring the output value of each generator in the wind turbine generator according to any one of claims 1 to 3, and the contact / separation data acquisition means Acquires the output value output from the output meter, and the generator contact / separation means performs contact / separation between the second and subsequent generators and the blade based on the acquired output value of the generator. It is a feature.

  The wind turbine generator according to claim 5 is provided with an ammeter for measuring a current value flowing through each generator in the wind turbine generator according to any one of claims 1 to 3, and obtains contact / separation data. The means acquires the current value output from the ammeter, and the generator contact / separation means determines the contact / separation between the second and subsequent generators and the blades based on the acquired current value flowing through each generator. It is characterized by doing.

  The wind turbine generator according to claim 6 is the first threshold for bringing the first generator into and out of contact with the blade in the wind turbine generator according to any one of claims 1 to 5; Based on the storage unit storing the second threshold value for bringing the subsequent generator into and out of contact with the blade, and the first threshold value and the data for contact and separation, the first generator is brought into and out of contact with the blade. A second determination unit that determines whether or not the second and subsequent generators are to be brought into and out of contact with the blades based on the first determination unit that determines whether or not and the second threshold value and the contact / separation data. And a generator contact / separation means that contacts and separates each generator and blade according to the determination results of the first and second determination means.

  The wind turbine generator according to claim 7 is the wind turbine generator according to any one of claims 1 to 6, wherein the plurality of generators have a rated output suitable for each preset contact / separation reference region. It is characterized by that.

  The wind turbine generator according to claim 8 is the wind turbine generator according to any one of claims 1 to 7, wherein all or part of the second and subsequent generators among the plurality of generators are other excitation type. It is characterized by having excitation means for exciting the other excitation type generator by another generator connected to the blade.

  The wind turbine generator according to claim 9 is the wind turbine generator according to any one of claims 1 to 8, wherein the rotational force transmission mechanism individually transmits the rotational force to each generator via the electromagnetic force. It is characterized by coupling.

  The wind turbine generator according to claim 10 is the wind turbine generator according to any one of claims 1 to 9, wherein the rotational force transmission mechanism includes a speed increasing mechanism for increasing the number of rotations of the blade and transmitting it to the generator. It is characterized by having.

  A wind turbine generator according to an eleventh aspect is characterized in that the rotation transmission mechanism according to any one of the first to tenth aspects is provided with a lifting guide portion that guides the lifting and lowering of the generator.

  The wind power generation program according to claim 12 includes a blade that rotates in accordance with wind power, a plurality of generators, and a rotation that transmits the rotational force of the blades to each generator and that allows each generator and blade to be connected and separated separately. Used for a wind turbine generator having a force transmission mechanism, a contact / separation data acquisition function for acquiring contact / separation data for contacting / separating each generator and blade separately, and the acquired contact / separation data. Based on the separation data, a generator contact / separation function that allows each generator and blade to contact / separate via a rotational force transmission mechanism is realized.

  The wind power generation program according to claim 13 includes a blade that rotates in accordance with wind power, a plurality of generators, and a rotation that transmits the rotational force of the blades to each generator and that can separately contact and separate each generator and blade. Used for a wind turbine generator having a force transmission mechanism, a rotation speed detection sensor for detecting the rotation speed of the blade, and an anemometer, and acquiring the rotation speed of the blade output from the rotation speed detection sensor; Contact / separation data acquisition function for acquiring the wind speed value output from the anemometer, and peripheral speed ratio calculation function for calculating the peripheral speed ratio of the blade based on the blade rotation speed and wind speed value acquired by the contact / separation data acquisition means And a generator contact / separation function for performing contact / separation between the first generator and the blade via a rotational force transmission mechanism based on the calculated peripheral speed ratio of the blade. .

  The wind power generation program according to claim 14 includes a blade that rotates in accordance with wind power, a plurality of generators, and a rotation that transmits the rotational force of the blades to each generator and that allows the generators and blades to be separated from each other Used for wind power generators that have a force transmission mechanism and an anemometer, and for the wind speed value acquired by the contact / separation data acquisition means for acquiring the wind speed value output from the anemometer, Based on this, a generator contact / separation function for performing contact / separation between the first generator and the blade via a rotational force transmission mechanism is realized.

  The wind power generation program according to claim 15 includes a blade that rotates in accordance with wind power, a plurality of generators, and a rotation that transmits the rotational force of the blades to each generator and that allows each generator and blade to be separately connected to and separated from each other. Used for a wind power generation apparatus having a force transmission mechanism and an output meter for measuring the output value of each generator, the data acquisition function for contact / separation for acquiring the output value output from the output meter, and the above acquisition Based on the output value of the generator, a generator contact / separation function for performing contact / separation between the second and subsequent generators and the blades via a rotational force transmission mechanism is realized.

  The wind power generation program according to claim 16 includes a blade that rotates in accordance with wind power, a plurality of generators, and a rotation that transmits the rotational force of the blades to each generator and that allows each generator and blade to be separately connected to and separated from each other. Used for a wind turbine generator having a force transmission mechanism and an ammeter that measures a current value flowing through each generator, and a data acquisition function for contact / separation that obtains a current value output from the ammeter, and the above acquisition Based on the measured current value, a generator contact / separation function for performing contact / separation between the second and subsequent generators and the blades via a rotational force transmission mechanism is realized.

  An information recording medium according to claim 17 records the generator contact / separation program according to any of claims 11 to 15.

  According to the first aspect of the present invention, the starting resistance is reduced and the self-starting property is improved, and only the generator corresponding to the wind speed region is driven without power loss at low and medium wind speeds. In addition, the life of each generator can be extended.

In addition to the effects obtained by the invention described in claim 1, the following effects can be obtained according to the invention described in each claim.
According to the second aspect of the present invention, the rotation speed of the blade output from the rotation speed detection sensor is acquired and the wind speed value output from the anemometer is acquired, and the acquired wind speed value and the rotation speed are obtained. Thus, the peripheral speed ratio of the blade is calculated, and the first generator and the blade are brought into contact with and separated from each other based on the calculated peripheral speed ratio. Can be performed at an optimal timing with good power generation efficiency.

  According to the third aspect of the invention, the wind speed value output from the anemometer is acquired, and the first generator and the blade are brought into contact with and separated from each other based on the acquired wind speed value. Contact and separation between the second generator and the blade can be performed at an optimal timing with good power generation efficiency.

  According to the fourth aspect of the present invention, the output value output from the output meter is acquired, and the contact and separation between the second generator and the blade are determined based on the acquired output value of the generator. As a result, the second and subsequent generators can be connected and separated efficiently, and overloading of each generator can be prevented.

  According to the fifth aspect of the present invention, the current value output from the ammeter is acquired, and the contact and separation between the second and subsequent generators and the blades are based on the acquired current value flowing through each generator. Therefore, the second and subsequent generators can be efficiently connected and separated, and burnout due to overcurrent flowing through each generator can be prevented.

  According to invention of Claim 6, while determining whether the 1st generator is contacted / separated with a blade based on the 1st threshold value and the data for contact / separation, it is said 2nd threshold value. And the contact / separation data to determine whether or not the second and subsequent generators are contacted and separated from the blade, and according to the determination results of the first and second determination means, Because of the contact and separation, each generator can be contacted and separated accurately.

  According to the seventh aspect of the present invention, since the plurality of generators have a rated output suitable for each preset contact / separation reference region, efficient power generation can be performed.

  According to the eighth aspect of the invention, since the other excitation type generator is excited by the other generator connected to the blade, an inexpensive other excitation type generator can be employed. .

  According to the ninth aspect of the present invention, since the electromagnetic force coupling mechanism that individually transmits the rotational force to each generator via the electromagnetic force is adopted as the rotational force transmission mechanism, the startability can be improved. it can.

  According to the tenth aspect of the present invention, since the rotational force transmission mechanism has the speed increasing mechanism for increasing the number of rotations of the blade and transmitting it to the generator, the speed increasing mechanism is separate from the rotational force transmitting mechanism. There is no need to provide a small size, and the size can be reduced.

  According to the eleventh aspect of the invention, since the raising / lowering of the generator is guided by the raising / lowering guide part, when the generator is raised / lowered, the shake in the horizontal direction can be reduced. Therefore, when the generator is moved up and down, the horizontal position of the generator shaft can be reliably maintained with high accuracy even if the generator is moved up and down with an actuator having a simple structure. Vibration problems due to misalignment can be prevented.

  According to the invention described in claim 12, the starting resistance is reduced and the self-starting property is improved, and only the generator corresponding to the wind speed region is driven without the power loss at the low wind speed and the medium wind speed. In addition, the life of each generator can be extended.

  According to the invention described in claim 13, the rotational speed of the blade output from the rotational speed detection sensor is acquired and the wind speed value output from the anemometer is acquired, and the acquired wind speed value and rotational speed are obtained. Thus, the peripheral speed ratio of the blade is calculated, and the first generator and the blade are brought into contact with and separated from each other based on the calculated peripheral speed ratio. Can be performed at an optimal timing with good power generation efficiency.

  According to the invention described in claim 14, the wind speed value output from the anemometer is acquired, and the first generator and the blade are brought into contact with and separated from each other based on the acquired wind speed value. Contact and separation between the second generator and the blade can be performed at an optimal timing with good power generation efficiency.

  According to the invention described in claim 15, the output value output from the output meter is acquired, and the contact and separation between the second and subsequent generators and the blades are determined based on the acquired output value of the generator. As a result, the second and subsequent generators can be connected and separated efficiently, and overloading of each generator can be prevented.

  According to the sixteenth aspect of the present invention, the current value output from the ammeter is acquired, and the contact / separation between the second and subsequent generators and the blades is based on the acquired current value flowing through each generator. Therefore, the second and subsequent generators can be efficiently connected and separated, and burnout due to overcurrent flowing through each generator can be prevented.

  According to the invention described in claim 17, it is determined whether or not the first generator is brought into contact with or separated from the blade based on the first threshold value and the contact and separation data, and the second threshold value is obtained. And the contact / separation data to determine whether or not the second and subsequent generators are contacted and separated from the blade, and according to the determination results of the first and second determination means, Because of the contact and separation, each generator can be contacted and separated accurately.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an entire configuration of a wind power generation system according to an embodiment of the present invention, FIG. 2 is a front view showing a part of a windmill body in cross section, and FIG. 3 is a plan view of the windmill body. FIG. 4 schematically shows a rotational force transmission mechanism according to an example, (A) is a plan view, and (B) is one of two pinions moved to a meshing position. It is a front view of a state.

  A wind turbine generator A according to an embodiment of the present invention includes a wind turbine body B in which two generators M1 and M2, an electromagnetic coupling D, and two actuators 11 and 12 are incorporated in a base body 10, and a controller C that controls the wind turbine body B. It consists of.

  The base 10 is provided with a mounting portion 14 for mounting on a utility pole or other cylindrical pole 13 at the lower end, and a hollow fixed column 15 with generators M1 and M2 disposed at the upper end, and this hollow. The rotating body 16 is configured to be rotatable about the fixed column 15.

  The mounting portion 14 is formed in a cylindrical shape having an inner diameter that can be crowned on the columnar pole 13 and having an opening at the lower end, so that the base 10 can be firmly fixed on the columnar pole 13. Yes.

The hollow fixed column 15 is formed in a cylindrical shape having both upper and lower end surfaces opened, and in order to lead out the wiring 17 extending from the generators M1 and M2 and the electromagnetic coupling D to the outside in the vicinity of the lower end portion of the side wall 15a. The lead-out hole 15b is formed.
A circular mounting table 18 for mounting generators M 1 and M 2, which will be described in detail later, is fixed to the upper end of the hollow fixed column 15, and the center of the mounting table 18 is for the wiring 17. A lead-out hole 18a is formed.

  The rotary body 16 is formed in a cylindrical shape having a slightly shorter overall length than the hollow fixed column 15 and is rotatably mounted on the hollow fixed column 15 via bearings 19, 20, and 21. And upper and lower support arms 23, 24, which protrude from the upper and lower ends of the hollow rotating column 22 at an angular interval of 90 (°) in plan view and have a streamlined cross section, respectively. It is supported by upper support arms 23 and lower support arms 24 and has four blades 25 that generate rotational torque (rotational force) by converting wind speed into lift.

The hollow rotating column 22 of the rotating body 16 supports the radial force at two locations above and below the upper bearings 19 and 20 and the lower bearing 21 across the wind pressure center position G. Since the distortion can be reduced and the natural frequency can be increased, the possibility of causing a large vibration due to a swing or the like can be reduced.
Further, in the present embodiment, the cantilevered hollow fixed column 15 is projected above the rotating body 16, so that the generators M <b> 1 and M <b> 2 and the electromagnetic coupling D, which will be described in detail later, are provided at the upper end of the hollow fixed column 15. Can be arranged without difficulty.

A torque transmission cylinder 26 is disposed on the upper portion of the rotating body 16.
The torque transmission cylinder 26 has an internal capacity capable of accommodating the mounting table 18 and the electric motors M1 and M2 mounted on the mounting table 18, and has a cylindrical shape with a lower end opened and a top end closed. 26 a is fixed to the upper support arms 23.

  On the lower surface of the upper wall 26b of the torque transmission cylinder 26, there is disposed a gear 27 that forms part of an electromagnetic coupling D for transmitting the rotational torque (rotational force) of the blades 25 to the generators M1, M2. In addition, pinions 30 and 31 that are magnetically engaged with the gear 27 are fixed to the output shafts 28 and 29 of the generators M1 and M2.

  The electromagnetic coupling D includes the gear 27 and the pinions 30 and 31 described above, and the gear 27 and the pinions 30 and 31 are magnetically engaged with each other. The electromagnetic coupling is also called a magnetic gear device.

The gear 27 is formed in an annular shape having substantially the same outer diameter as the mounting table 18, and “S pole” and “N pole” 33 indicated by reference numeral 32 in FIG. Are alternately formed at regular angular intervals.
The pinion 30 (31) is formed in an annular shape having an outer diameter that is approximately half the outer diameter of the gear 27, and an “S pole” 32 and an “N pole” 33 are constant on the surface facing the gear 27. Are formed alternately at an angular interval.
The gear 27 and the pinion 30 (31) are disposed such that a part of the gear 27 and a part of the pinion 30 (31) face each other. In other words, they are opposed to each other so as to form a predetermined meshing region.

In the present embodiment, the gear 27 and the pinions 30 and 31 described above have a function as a speed increasing mechanism for increasing the number of rotations of the blade 25 and transmitting it to the generators M1 and M2.
The speed increasing ratio can be changed by increasing / decreasing the numbers of the S pole 32 and the N pole 33 of the gear 27 and the pinions 30 and 31 described above.

The generators M1 and M2 are of the AC type and have a rated output suitable for each preset wind speed region.
Specifically, the first generator M1 is smaller than the rated output of the second generator M2, and therefore has good startability. In the present embodiment, two generators M1 are provided. The second generator M2 is excited by the first generator M1 and the second generator M2 is excited by the first generator M1. That is, since an inexpensive other excitation type generator can be adopted, the manufacturing cost can be reduced.

The generators M1 and M2 described above are fixed on the mounting table 18 via the actuators 11 and 12, and by controlling the expansion and contraction of the actuators 11 and 12, each of the pinions 30 and 31 is magnetically coupled to the gear 27. It is possible to move to a meshing position (A) meshed with the non-meshing position (B) released from magnetic meshing.
In the present embodiment, the electromagnetic coupling D composed of the gear 27 and the pinions 30 and 31 and the actuators 11 and 12 transmit the rotational force of the blades 25 to the generators M1 and M2, and the generators M1 and M2. And the blades 25... Constitute a rotational force transmission mechanism E capable of contacting and separating the blades 25.

  In the present embodiment, “contact / separation” refers to a state in which the pinions 30 and 31 are brought close to the gear 27 to magnetically engage them, and the rotational torque of the blade 25 is transmitted to the generators M1 and M2. , 31 are separated from the gear 27 to release the magnetic engagement, and the rotational torque of the blades 25 is not transmitted to the generators M1, M2.

Next, the controller C will be described.
On the input side of the controller C, output meters 8, 9, anemometer 36, and rotation speed detection sensor 37 are provided. On the output side, a battery 38, an external memory 39, a monitor 40, a mechanical brake unit 41, and the windmill body B described above. The generators M1 and M2 and the actuators 11 and 12 are connected to each other.

  The output meters 8 and 9 measure the output values of the generators M1 and M2, and the output meter 8 corresponds to the generator M1 and the output meter 9 corresponds to the generator M2.

  The anemometer 36 is disposed in the vicinity of the windmill main body B, and the rotational speed detection sensor 37 detects the rotational speed of the blades 25 (rotating bodies 16).

  The monitor 40 is for displaying the data output from the windmill body B described above, thereby enabling the power generation state of the windmill body B to be checked.

The external memory 39 is a storage unit including a ROM, a RAM, a hard disk, and the like, in which various necessary data are stored, and the first generator M1 is connected to and separated from the blades 25. The threshold value L1 and the second threshold value L2 for bringing the second and subsequent generators M2, etc. into and out of contact with the blades 25 are stored. FIG. 5 is an explanatory diagram for explaining the threshold value.
In the figure, the horizontal axis indicates the wind speed (m / sec), and the vertical axis indicates the shaft end output of the output shaft of the generator and the peripheral speed ratio of the blade 25. Further, the shaft end output of the generator is indicated by a solid line, and the peripheral speed ratio of the blade 25 is indicated by a one-dot chain line.
In this embodiment, an example using two generators M1 and M2 has been described. However, the same drawing also shows a case where a third generator M3 is used.

The first threshold value L1 is a peripheral speed ratio for making contact / separation between the first generator M1 and the blades 25, and is an average peripheral speed ratio for connecting the first generator and the blades. λ = 1.2, and the average peripheral speed ratio λ = 0.8 for separating the first generator and the blade.
The second threshold value L2 is an output value for performing contact / separation between the second generator M2 and the blades 25, and the rated output W1 (Kw) of the first generator M1. The rated output W1 × 0.8 (Kw) of the first generator M1 for separating the generator M2 and the blades 25.
The phrase “connect the generator to the blade 25 (rotary body 26)” means that the generator is magnetically engaged with the blade 25 (rotary body 26) via the electromagnetic coupling D and the blade 25 rotates. This means that torque is transmitted to the generators M1 and M2.

The controller C is configured to include a CPU, a main memory, an interface circuit, and the like (none of which are shown). The controller C performs the following functions by executing the necessary programs described later. Yes.
(1) A contact / separation data acquisition function for acquiring contact / separation data as a reference for contacting / separating the generators M1, M2 and the blades 25 individually. Hereinafter, this function is referred to as contact / separation data acquisition means C1.
In the present embodiment, as the contact / separation data, the rotation speed of the blade 25 (rotary body 26) is acquired from the rotation speed detection sensor 37, and the wind speed value is acquired from the anemometer 36.

(2) A peripheral speed ratio calculation function for calculating a peripheral speed ratio based on the acquired wind speed value and rotation speed. Hereinafter, this function is referred to as a peripheral speed ratio calculating means C2.
The peripheral speed ratio can be obtained by dividing the peripheral speed value calculated by the rotational speed by the wind speed value. Specifically, the average wind speed value for 60 (sec) is used to calculate the average peripheral speed ratio for 10 (sec). In addition, the time for calculating the average value can be set as long or short as appropriate.

(3) A function of determining whether or not the first generator M1 is brought into and out of contact with the blades 25 ... based on the first threshold value L1 and the data for contact and separation. This is referred to as first determination means C3.
In the present embodiment, as the first threshold L1, the average peripheral speed ratio λ = 1.2 for connecting the first generator and the blade described above, and the first generator and the blade are set as follows. An average peripheral speed ratio λ = 0.8 for separating.
When the first generator M1 is not connected to the blades 25 ..., the average peripheral speed ratio for 10 (sec) is compared with the peripheral speed ratio λ = 1.2, and the average peripheral speed ratio is the peripheral speed. It is determined whether or not the ratio λ = 1.2, and when the first generator M1 is connected to the blades 25 ..., the average peripheral speed ratio for 10 (sec) is the peripheral speed ratio. λ = 0.8 is compared, and it is determined whether or not the average peripheral speed ratio is lower than the peripheral speed ratio λ = 0.8.

(4) A function of determining whether or not the second and subsequent generators are brought into and out of contact with the blade based on the second threshold value L2 and the data for making and coming into contact with the blade. This is referred to as second determination means C6.
In the present embodiment, the second threshold value L2 is the first output for separating the rated output W1 (Kw) of the first generator M1, the second generator M2, and the blades 25 ... It consists of the rated output W1 × 0.8 (Kw) of the generator M1.

  When the second generator M2 is not connected to the blade 25 ..., the output of the first generator M1 is compared with the rated output W1 (Kw), and the output of the generator M1 is compared with the rated output W1 (Kw). ), And when the second generator M2 is connected to the blade 25 ..., the output of the first generator M1 and the output of the second generator M2 Are compared with the rated output 0.8 × W1 (Kw), and it is determined whether or not the combined value exceeds the rated output 0.8 × W1 (Kw).

(5) A generator contact / separation function for causing each generator and blade to contact / separate via the rotational force transmission mechanism E based on the acquired contact / separation data. Hereinafter, this function is referred to as a generator contacting / separating means C4.
In the present embodiment, when the first generator M1 is not connected to the blades 25, the average peripheral speed ratio and the peripheral speed ratio λ = 1. 2, when it is determined that the average peripheral speed ratio exceeds the peripheral speed ratio λ = 1.2, the generator M1 is connected to the blades 25 (rotary bodies).
Further, when the first generator M1 is separated from the blades 25 ..., the average peripheral speed ratio for 10 (sec) is compared with the peripheral speed ratio λ = 0.8 to obtain the average peripheral speed. When it is determined that the ratio is lower than the peripheral speed ratio λ = 0.8, the generator M1 is separated from the blades 25 (rotary body).

On the other hand, when the second generator M2 is not connected to the blades 25 ..., the output of the generator M1 is determined by comparing the output of the first generator M1 with the rated output W1 (Kw). When it is determined that the rated output W1 (Kw) has been exceeded, the generator M2 is connected to the blades 25 (rotary body).
When the second generator M2 is connected to the blades 25 ..., the sum of the output of the first generator M1 and the output of the second generator M2 and the rated output 0.8. When it is determined by comparing × W1 (Kw) that the total value is lower than the rated output 0.8 × W1 (Kw), the generator M2 is separated from the blade 25 (rotary body).

(6) An excitation function for exciting the second and subsequent other generators by other generators connected to the blades. Hereinafter, this function is referred to as excitation means C5.
Specifically, the second and subsequent generators of the other excitation system are excited by a battery 38 whose charged state is guaranteed by another generator connected to the blade.
In the present embodiment, the second generator M2 is excited by M1 in the first generator.

  A wind power generation program according to an embodiment of the present invention can transmit a blade rotating according to wind power, a plurality of generators, the rotational force of the blades to each generator, and each generator and blade can be separated from each other. Data acquisition function for acquiring contact / separation data for contacting / separating each generator and blade separately, and the above acquisition Based on the contact / separation data thus obtained, a basic feature is to realize a generator contact / separation function that allows each generator and blade to contact / separate via a rotational force transmission mechanism.

  Specifically, the blade acquired by the contact / separation data acquisition unit that acquires the rotation speed of the blade output from the rotation speed detection sensor and the wind speed value output from the anemometer, and the blade acquired by the contact / separation data acquisition means The peripheral speed ratio calculation function for calculating the peripheral speed ratio of the blades based on the rotational speed and the wind speed value, and the contact and separation between the first generator and the blade based on the calculated peripheral speed ratio of the blades. The generator contact / separation function to be performed via the transmission mechanism is realized.

  In addition, based on the contact / separation data acquisition function for acquiring the output value output from the output meter and the acquired output value of the generator, the contact force of the second and subsequent generators and blades is transmitted to the rotational force. It realizes the generator contact / separation function to be performed through the mechanism.

  The above-described wind power generation program is stored in the external memory 39 composed of ROM, RAM, hard disk, etc., and is also stored in a portable information recording medium composed of, for example, a magnetic disk, magneto-optical disk, optical disk, portable hard disk, etc. Can be recorded.

Next, a detailed contact / separation operation of the present apparatus will be described with reference to FIGS. FIGS. 6 and 7 are flowcharts showing contact and separation operations when two generators are provided.
First, in a state where a system power supply (not shown) is turned off, the operation standby mode in which only the wind speed value by the anemometer 36 and the rotation speed of the blades 25 are measured.

Step 1 (indicated by “S1” in the figure. The same applies hereinafter): An average wind speed value for 60 (sec) is calculated, and the process proceeds to Step 2.
Step 2: It is determined whether or not the average wind speed value for 60 (sec) is larger than 1 (m / sec). If it is determined that the average wind speed value is larger, the process proceeds to Step 3;

Step 3: Based on the wind speed value and the rotational speed of the blade 25, an average peripheral speed ratio for 10 (sec) is calculated, and the process proceeds to Step 5.
After this step 3, the operation mode is to calculate the average wind speed value for 60 (sec) and the average peripheral speed ratio for 10 (sec) from the measured wind speed value and the rotation speed of the blade. .

Step 4: It is determined whether or not the average wind speed value is larger than 0.5 (m / sec). If it is determined that the average wind speed value is larger, the process returns to Step 2, and if not, the process returns to Step 1.
Step 5: It is determined whether or not the average peripheral speed ratio for 10 (sec) is larger than 1.2. If it is determined that the average peripheral speed ratio is large, the process proceeds to Step 6, and if not, Step 5 is repeatedly performed.
Step 6: Connect the first generator M1 to the blades 25...

Step 7: It is determined whether or not the average peripheral speed ratio for 10 (sec) is greater than 0.8. If it is determined that the average peripheral speed ratio is greater than 0.8, the process proceeds to Step 10, and so on. If not, go to Step 8.
Step 8: The first generator M1 is moved away from the blades 25, and the process proceeds to Step 9.
Step 9: It is determined whether or not the average wind speed value for 60 (sec) is larger than 0.5 (m / sec). If it is determined that the average wind speed value is larger, the process returns to Step 5; . During this time, the operation mode is continued.
Step 10: It is determined whether or not the output of the first generator M1 is larger than the threshold value L1. If it is determined that the output is larger, the process proceeds to Step 11; otherwise, the process returns to Step 8.
The “threshold value L1” is the rated output of the generator M1 in the present embodiment, but is not limited to this, and may be set within a range of several percent above and below centering on the rated output. It may be output.
Step 11: Connect the second generator M2 to the blades 25, and proceed to Step 12.

Step 12: It is determined whether or not the combined calculation force of the first and second generators M1 and M2 is equal to or greater than a value obtained by multiplying the threshold value L1 of the first generator M1 by 0.8. If it is determined that the value is equal to or greater than the value obtained by multiplying the threshold value L1 of the second generator M1 by 0.8, the process proceeds to step 13;
Step 13: It is determined whether or not the battery voltage exceeds the upper limit voltage. If the battery voltage exceeds the upper limit voltage, the process proceeds to Step 14, and if not, the process proceeds to Step 15.

Step 14: The operation of the blades 25 is stopped by the mechanical brake unit 41 and the process is terminated.
Step 15: It is determined whether or not the average peripheral speed ratio for 10 (sec) is greater than 0.8. If it is determined that the average peripheral speed ratio is greater than 0.8, the process returns to Step 12, and so on. If not, go to Step 16.

  Step 16: The second generator M2 is separated from the blades 25, and the process proceeds to Step 17.

  Step 17: It is determined whether or not the average peripheral speed ratio for 10 (sec) is larger than 0.8. If it is determined that the average peripheral speed ratio is larger than 0.8, the process returns to Step 11, and so on. If not, return to Step 8.

Next, a wind turbine body according to another example will be described. FIG. 8 is a front view of a section of a windmill body according to another example.
A windmill body B ′ according to another example includes a base body 50, two generators M1 and M2, and two actuators 11 and 12. The controller C, the generators M1 and M2, the actuators 11 and 12, the electromagnetic coupling D, and the rotational force transmission mechanism E that control the windmill body B 'are the same as those in the above-described embodiment. The same reference numerals are given and description thereof is omitted.

  The base body 50 has a hollow fixed column 52 fixed to the gantry 51 at the lower end, a rotation support shaft 53 that is coaxially disposed on the hollow fixed column 52 and is rotatable with respect to the hollow fixed column 52, and the rotation support. The shaft 53 and the rotating body 54 that can rotate integrally are configured.

  The gantry 51 has a cylindrical shape with an internal capacity capable of accommodating the above-described electric motors M1 and M2 and closed upper and lower surfaces, and a loose insertion hole 55a for loosely inserting the rotation support shaft 53 in the center of the upper wall 55. And a bearing 57 for supporting the lower end portion of the rotation support shaft 53 loosely inserted into the loose insertion hole 55a.

  Generators M1 and M2 are arranged on the lower wall 56 of the gantry 51 via the actuators 11 and 12 described above, and the output shafts 28 and 29 of the generators M1 and M2 are connected to the gears 27 and 27, respectively. Pinions 30 and 31 that mesh magnetically are fixed.

  The hollow fixed column 52 is formed in a cylindrical shape with upper and lower surfaces opened, and a lower end is fixed to the upper wall 55.

The rotation support shaft 53 is rotatably supported by the pedestal 51 via a bearing 57, and the lower end portion transmits the rotational torque (rotational force) of the blades 25 to each of the generators M1, M2. A gear 27 forming a part of the electromagnetic coupling D is disposed.
An outer cylinder 60 that forms part of the rotating body 54 is fixed to the upper wall 58 of the upper end portion via a flexible joint 59.

  The rotating body 54 has upper and lower and lower support arms 23, 61, 24, and so on in a streamlined cross-section projecting from the upper and lower ends of the outer casing 60 at an angular interval of 90 (°) in plan view. .. Are supported by the corresponding upper, middle, and lower support arms 23, 61, 24, and have four blades 25 that generate rotational torque (rotational force) by converting wind speed into lift. It is.

  The outer cylinder 60 has a cylindrical shape with a slightly shorter overall length than the hollow fixed column 52 and a closed upper surface, and is rotatably mounted on the hollow fixed column 52 via bearings 19, 20, and 21.

According to the wind turbine main body according to this other example, the generators M1 and M2 can be directly installed on the foundation, and the generators M1 and M2 can be disposed in a free space directly below the rotating body 54. The size and layout can be designed freely.
Furthermore, vibration can be easily suppressed, the generators M1 and M2 can be easily enlarged, and the possibility of realizing a design with a high degree of freedom is widened. Since 20 and 21 are arranged, it is not necessary to extend the rotation support shaft 53 long and the stable operation with a small load and bending moment for vibrating the rotation support shaft 53 can be easily maintained.

Next, with reference to FIG. 9, the contacting / separating operation when three generators are provided will be described. FIG. 9 is a flowchart showing a part of the contact / separation operation when three generators are provided. In addition, the flowchart shown in FIG. 9 is a continuation from step 15 shown in FIG.
In step 15 shown in FIG. 7, it is determined whether or not the average peripheral speed ratio for 10 (sec) is greater than 0.8. If it is determined that the average peripheral speed ratio is greater than 0.8, step 18 is performed. Otherwise go to step 16.

Step 18: It is determined whether or not the combined calculation force of the first and second generators M1 and M2 is equal to or greater than the threshold value L2 of the first generator M1, and the first and second generators are generated. If it is determined that the combined calculation force of the machines M1 and M2 is greater than or equal to the threshold value L2, the process proceeds to step 19; otherwise, the process returns to step 15.
The “threshold value L2” is the rated output of the generator M2 in the present embodiment, but is not limited to this, and may be set within a range of several percent above and below centering on the rated output. It may be output.

Step 19: Connect the third generator M3 to the blades 25...
Step 20: It is determined whether or not the combined calculation force of the first and second generators M1 and M2 is not less than a value obtained by multiplying the threshold value L2 of the second generator M2 by 0.8. If it is determined that the threshold value L2 of the second generator M2 is greater than or equal to 0.8, the process proceeds to step 21; otherwise, the process proceeds to step 24.

Step 21: It is determined whether or not the battery voltage exceeds the upper limit voltage. If the battery voltage exceeds the upper limit voltage, the process proceeds to Step 22, and if not, the process proceeds to Step 23.
Step 22: The operation of the blades 25 is stopped by the mechanical brake unit 41 and the process is terminated.
Step 23: It is determined whether or not the average peripheral speed ratio for 10 (sec) is greater than 0.8. If it is determined that the average peripheral speed ratio is greater than 0.8, the process returns to Step 20, and so on. Otherwise, go to step 24.

Step 24: The third generator M3 is moved away from the blades 25, and the process proceeds to Step 25.
Step 25: It is determined whether or not the average peripheral speed ratio for 10 (sec) is greater than 0.8. If it is determined that the average peripheral speed ratio is greater than 0.8, the process returns to Step 18, and so on. If not, return to Step 16.

A torque transmission mechanism according to another example will be described with reference to FIG. FIG. 10 is a front view showing a part of a rotational force transmission mechanism according to another example in cross section.
A rotational force transmission mechanism G according to another example is applied to a windmill body B ′ according to another example shown in FIG. 8, and includes a gear 100 fixed to the lower end of the rotation support shaft 53, generators M <b> 1 and M <b> 2. Clutch mechanisms 101 and 102 fixed to the output shafts 28 and 29, and pinions 103 and 104 connected to the output shafts 28 and 29 of the generators M1 and M2 through the clutch mechanisms 101 and 102, respectively. ing.

In the present embodiment, the gear 100 and the pinions 103 and 104 described above also have a function as a speed increasing mechanism for increasing the number of rotations of the blade 25 and transmitting it to the generators M1 and M2.
The speed increasing ratio can be changed by increasing or decreasing the number of gears of the gear 100 and the pinions 103 and 104 described above.

  The above-described generators M1 and M2 are configured to transmit the rotational force of the pinions 30 and 31 to the generators M1 and M2 and to cancel the transmission by controlling the clutches 101 and 102 by the controller C. .

With reference to FIGS. 11-13, the rotational force transmission mechanism provided with the raising / lowering guide part which concerns on an example is demonstrated. FIG. 11 is a cross-sectional view of a rotational force transmission mechanism including an elevation guide unit according to an example, and FIG. 12 is an explanatory diagram illustrating an operation of the rotational force transmission mechanism including the elevation guide unit according to the example illustrated in FIG. 13 is a sectional view taken along line XX shown in FIG.
In addition, about the thing equivalent to what was demonstrated in embodiment mentioned above, the code | symbol same as them is attached | subjected and detailed description is abbreviate | omitted.

  A rotational force transmission mechanism (hereinafter simply referred to as “rotational force transmission mechanism”) H provided with an elevating guide portion according to an example adopts a lift-type linear wing type vertical axis wind turbine as shown in FIG. It is used for small-scale wind power generation systems.

  The rotational force transmission mechanism H includes a support frame 200, a slide frame 201, a bellows tank 251 that is an actuator, and generators M1 and M2. In the following, an example in which the rotational force transmission mechanism H is applied to the generator M1 will be described, but the description is omitted because it is the same for the generator M2.

  The support frame 200 is fixed on the mounting table 18 described above, and the four side plates 202 erected so as to form a substantially rectangular frame in plan view, and a plan view fixed between the upper ends of these side plates 202. The bottom plate 204 fixed between the lower ends of the square top plate 203 and the side plates 202 is a slightly vertically long rectangular tube.

The side plate 202 is formed to have a longer vertical length than a side plate 205 of a slide frame body 201 described later, and is in sliding contact with the outer surface of the side plate 205 of the slide frame body 201.
A guide groove 202a extending in the vertical direction is provided between the upper and lower end surfaces corresponding to the guide protrusions 205a formed on the side plate 205 of the slide frame 201 on the inner surface of the side plate 202.
At the center of the top plate 203, a circular opening 203a for projecting the output shaft 28 of the generator M1 is formed.

The slide frame 201 is composed of four side plates 205 erected so as to form a substantially rectangular frame in plan view, a top plate 206 having a rectangular shape in plan view fixed to the upper ends of these side plates 205, and upper ends of the side plates 205. The base plate 207 is fixed to the bottom plate 207 and is formed into a slightly vertically long rectangular tube shape, in which the generator M1 is accommodated.
A guide projection 205a extending in the vertical direction is formed on the outer surface of the side plate 205 at the center between the upper and lower end surfaces thereof, and is slidably fitted into the guide groove 202a.
In the center of the top plate 206, a circular opening 206a for projecting the output shaft 28 of the generator M1 is formed.
The bottom plate 207 forms a space for accommodating a part of the slide drive mechanism 250 between the bottom end of the generator M1.
In the present example, the guide groove 202a of the side plate 202 and the guide projection 205a of the side plate 205 constitute an elevation guide portion 300 that guides the raising and lowering of the generator M1.

  By providing the elevating guide portion 300, the guide protrusion 205a of the slide frame 201 is slidably fitted in the guide groove 202a of the support frame 200 that supports the generator M1, thereby generating the generator M1. It is possible to reduce the shake in the horizontal direction when moving up and down. Thereby, an actuator having a simple structure such as the bellows tank 251 can be employed, which can contribute to cost reduction.

A return spring 208 is interposed between the bottom plate 204 of the support frame 200 and the bottom plate 207 of the slide frame 201.
The return spring 208 is made of a coil spring, for example, and elastically biases the slide frame body 201 upward. In other words, the slide frame 201 is elastically urged in the electromagnetic coupling D direction.

  The slide drive mechanism 250 includes a bellows tank 251 and an air supply / exhaust pipe 252 and slides (slids) the slide frame body 201 in the vertical direction using the air pressure by the air supply pump P (see FIG. 11). It has a function.

  The bellows tank 251 is formed in a cylindrical shape with a peripheral wall molded into a bellows shape so that it can be elastically deformed in the vertical direction according to the increase or decrease of the internal air pressure, and slides with the lower end surface 251a abutting against the bottom plate 207. The frame 201 is housed inside.

The air supply / exhaust pipe 252 is installed in the mounting table 18 described above, passes through the bottom plate 204 of the support frame 200 and the bottom plate 207 of the slide frame 201, and has one end connected to the bellows tank 251. The other end is connected to the air supply pump P. As a result, air can be supplied to and exhausted from the inside of the bellows tank 251.
The air supply pump P is installed on the ground or the like in the vicinity of the mounting table 18 described above to supply and exhaust air to and from the bellows tank 251.

The bellows tank 251 is restricted inside the slide frame 201 by the attachment frame 253.
The mounting frame 253 is formed in a U-shape and is fitted near the lower end portion of the side plate 205 of the slide frame body 201 and the side plate 202 of the support frame body 200, and a part of the mounting frame 253 protrudes into the slide frame body 201. The frame includes a base frame 254 and a seat plate 255 fixed to the base frame 254 and in contact with the upper end surface of the bellows tank 251.
According to said structure, since a special member is not arrange | positioned in the electromagnetic coupling D vicinity, shortening of the installation space | interval of a linear wing type | mold vertical axis windmill and generator M1 (M2) is not inhibited.

  The above-described generator M1 (M2) transmits the rotational force of the pinion 30 (31) to the generator M1 (M2) by controlling the air supply pump P by the controller C, and cancels the transmission. It has become.

In order to move the pinion 30 of the electromagnetic coupling D to the non-engagement position (b), as shown in FIG. 11, the air feed pump P of the slide drive mechanism 250 is driven and air is sent from the air feed pipe 252 to the bellows tank 251. To air.
The bellows tank 251 to which air is supplied extends in the vertical direction and slides the slide frame 201 downward in the support frame 200. As a result, the generator M1 accommodated in the slide frame 201 is lowered, and the pinion 30 of the electromagnetic coupling D is moved to the non-meshing position (B).

On the other hand, in order to move the electromagnetic coupling D to the meshing position (A), as shown in FIG. 12, the driving of the air supply pump P is stopped and the air in the bellows tank 251 is exhausted from the air supply / exhaust pipe 252.
The bellows tank 251 from which the air has been exhausted contracts in the vertical direction and causes the slide frame body 201 to slide upward within the support frame body 200. As a result, the generator M1 accommodated in the slide frame 201 is raised, and the pinion 30 of the electromagnetic coupling D is moved to the meshing position (A).
The rising of the slide frame 201 is assisted by the return spring 208. Therefore, the pinion 30 of the electromagnetic coupling D can be moved to the meshing position (A) at high speed without actively sucking and exhausting air from the bellows tank 251.

  In this configuration, since the generator M1 itself is slid together with the slide frame body 201 by the slide drive mechanism 250, the entire structure can be prevented from becoming complicated and large in the radial direction (lateral direction in the drawing). Therefore, it is simplified and miniaturized so as to be suitable for a wind power generation system employing a straight blade type vertical axis wind turbine.

Since the drive of the air supply pump P is stopped when the electromagnetic coupling D having a relatively long time is connected, the driving energy of the slide drive mechanism 250 for intermittent connection of the electromagnetic coupling D is reduced. For example, a smaller capacity air supply pump P can be employed.
In addition, since the non-contact type electromagnetic coupling D is employed, the intermittent operation range is short, so that the electromagnetic coupling D can be intermittently performed at a high speed and the drive energy of the slide drive mechanism 250 is reduced. Also useful.
Furthermore, since the bellows tank 251 using the air pressure is employed, no mechanical friction is generated, so that unnecessary heat and static electricity around the generator M1 can be prevented.

  14 and 15 show a rotational force transmission mechanism provided with a lifting guide portion according to another example, and FIG. 14 is a cross-sectional view of the rotational force transmission mechanism provided with a lifting guide portion according to another example. 15 is an explanatory view showing the operation of the rotational force transmission mechanism including the lifting guide portion according to another example shown in FIG. In addition, about the thing equivalent to what is shown to FIGS. 11-13, the code | symbol same as them is attached | subjected and description is abbreviate | omitted.

  The rotational force transmission mechanism provided with the raising / lowering guide part which concerns on another example omits the attachment frame 253 shown in FIGS. 11-13, and between the top plate 206 of the slide frame 201 and the top plate 203 of the support frame 200. In this configuration, the slide frame 201 is pressed and biased in the opposite direction to the electromagnetic coupling D through the return spring 208.

In order to move the pinion 30 of the electromagnetic coupling D to the non-meshing position (b), as shown in FIG. 15, the driving of the air pump P of the slide drive mechanism 250 is stopped and the air in the bellows tank 251 is sent and exhausted. Exhaust from the pipe 252.
The bellows tank 251 from which the air has been exhausted contracts in the vertical direction, and slides the slide frame body 201 inside the support frame body 200. As a result, the generator M1 accommodated in the slide frame 201 is lowered, and the pinion 30 of the electromagnetic coupling D is moved to the non-engagement position (B).
Note that the slide descent of the slide frame 201 is assisted by the return spring 208. Therefore, the electromagnetic coupling D can be disconnected at high speed without actively sucking and exhausting air from the bellows tank 251 of the slide drive mechanism 250.

On the other hand, in order to move the electromagnetic coupling D to the meshing position (A), as shown in FIG. 14, the air supply pump P is driven and air is supplied from the air supply / exhaust pipe 252 to the bellows tank 251.
The bellows tank 251 to which the air has been supplied extends in the vertical direction, and slides and raises the slide frame 201 inside the support frame 200. As a result, the generator M1 accommodated in the slide frame 201 is raised, and the pinion 30 of the electromagnetic coupling D is moved to the meshing position (A).
The entire structure can be further simplified and miniaturized as compared with the rotational force transmission mechanism including the lifting guide portion according to the example described in FIGS. In addition to the illustrated examples, it is also possible to use an oil pressure for the slide drive mechanism 250.

Note that the present invention is not limited to the above-described embodiment, and the following modifications can be made.
a) In the above-described embodiment, the example in which the generator contact / separation unit performs contact / separation between the first generator and the blade based on the calculated peripheral speed ratio has been described. The wind speed value output from the anemometer is acquired by the means, and the generator contacting / separating means may perform contact / separation between the first generator and the blade based on the acquired wind speed value. Good.

b) The wind power generator described above is provided with an ammeter for measuring the current value flowing through each generator, and the contact / separation data acquisition means acquires the current value output from the ammeter, and the generator contact / separation The means may perform contact / separation of the generators and blades of the second and subsequent generators based on the acquired value of the current flowing through each generator.

c) In the above-described embodiment, the second generator M2 is of the other excitation type, and the second generator M2 is excited by the first generator M1. In the case where three or more generators are provided, the second and subsequent other generators may be excited by another generator connected to the blade.

1 is a block diagram illustrating an overall configuration of a wind power generation system according to an embodiment of the present invention. It is a front view which shows a part of windmill main body in cross section. It is a top view of a windmill main body same as the above. FIG. 1 schematically shows a rotational force transmission mechanism according to an example, (A) is a plan view, and (B) is a front view of a state where one of two pinions is moved to a meshing position. is there. It is explanatory drawing for demonstrating a threshold value. It is a flowchart which shows operation | movement at the time of providing two generators. It is a flowchart which shows operation | movement at the time of providing two generators. It is the front view which made some windmill main bodies concerning other examples into the section. It is a flowchart which shows a part of contact / separation operation | movement at the time of providing three generators. It is a front view which shows a part of rotational force transmission mechanism which concerns on another example in a cross section. It is sectional drawing of the rotational force transmission mechanism provided with the raising / lowering guide part which concerns on an example. It is explanatory drawing which shows operation | movement of the rotational force transmission mechanism provided with the raising / lowering guide part which concerns on an example shown in FIG. 13 is a cross-sectional view taken along line XX shown in FIG. It is sectional drawing of the rotational force transmission mechanism provided with the raising / lowering guide part which concerns on another example. It is explanatory drawing which shows operation | movement of the rotational force transmission mechanism provided with the raising / lowering guide part which concerns on the other example shown in FIG.

Explanation of symbols

25 Blade 36 Anemometer 37 Rotational speed detection sensor 39 Storage unit (external memory)
C1 Contact / separation data acquisition means C2 Peripheral speed ratio calculation means C3 First determination means C4 Generator contact / separation means C5 Excitation means C6 Second determination means D Electromagnetic coupling E, G, H Rotational force transmission mechanisms M1, M2 , M3 generator

Claims (17)

A wind power generator having a blade that rotates according to wind power, a plurality of generators, and a rotational force transmission mechanism that transmits the rotational force of the blades to each generator and that allows each generator and blade to be connected to and separated from each other. And
Contact / separation data acquisition means for acquiring contact / separation data for contacting / separating each generator and blade separately,
A wind turbine generator comprising a generator contacting / separating means for performing contact / separation between each generator and a blade via a rotational force transmission mechanism based on the acquired contact / separation data. The wind power generator according to claim 1 is provided with a rotation speed detection sensor for detecting the rotation speed of the blade and an anemometer,
The contact / separation data acquisition means acquires the rotation speed of the blade output from the rotation speed detection sensor and acquires the wind speed value output from the anemometer,
Peripheral speed ratio calculating means for calculating the peripheral speed ratio of the blade according to the obtained wind speed value and the number of rotations is provided,
The generator contact / separation means performs contact / separation between the first generator and the blade based on the calculated peripheral speed ratio. An anemometer is provided in the wind turbine generator according to claim 1,
The data acquisition means for contact / separation acquires the wind speed value output from the anemometer,
The wind turbine generator according to claim 1, wherein the generator contact / separation means performs contact / separation between the first generator and the blade based on the acquired wind speed value. The wind power generator according to any one of claims 1 to 3 is provided with an output meter for measuring an output value of each generator,
The data acquisition means for contact / separation acquires the output value output from the output meter,
The generator contact / separation means performs contact / separation between the second and subsequent generators and the blades based on the acquired output value of the generator. The wind power generator according to any one of claims 1 to 3 is provided with an ammeter for measuring a current value flowing through each generator,
The contact / separation data acquisition means acquires the current value output from the ammeter, and the generator contact / separation means causes the second and subsequent generators and blades to flow through the acquired generators. A wind power generator, which is performed based on a current value. The wind power generator according to any one of claims 1 to 5, wherein the first threshold value for bringing the first generator into contact with and separating from the blade and the second and subsequent generators from and coming into contact with the blade A storage unit storing the second threshold of
First determination means for determining whether or not the first generator is brought into and out of contact with the blade, based on the first threshold value and the data for contact and separation;
Based on the second threshold value and the contact / separation data, a second determination unit that determines whether or not the second and subsequent generators are contacted and separated from the blade, and
The generator contacting / separating means contacts and separates each generator and the blade according to the determination results of the first and second determining means.   The wind power generator according to any one of claims 1 to 6, wherein the plurality of generators have a rated output suitable for each wind speed region. In the wind power generator according to any one of claims 1 to 7, all or a part of the second and subsequent generators among the plurality of generators are of other excitation type,
A wind power generator characterized by having excitation means for exciting the other excitation type generator by another generator connected to a blade.   The wind power generator according to any one of claims 1 to 8, wherein the rotational force transmission mechanism is an electromagnetic coupling that individually transmits the rotational force to each generator via an electromagnetic force. apparatus.   The wind power generator according to any one of claims 1 to 9, wherein the rotational force transmission mechanism includes a speed increasing mechanism for increasing the number of rotations of the blade and transmitting it to the generator. apparatus.   The wind power generator according to any one of claims 1 to 10, wherein the rotation transmission mechanism is provided with a lifting guide portion that guides the lifting and lowering of the generator. Used for a wind turbine generator having a blade that rotates according to wind power, a plurality of generators, and a torque transmission mechanism that transmits the rotational force of the blades to each generator and that allows each generator and blade to be connected to and separated from each other. A wind power program,
Contact / separation data acquisition function for acquiring contact / separation data for contacting / separating each generator and blade separately,
Wind power used in a wind power generator characterized by realizing a generator contact / separation function for performing contact / separation between each generator and blade via a rotational force transmission mechanism based on the acquired contact / separation data Power generation program. Blades that rotate according to wind power, multiple generators, a rotational force transmission mechanism that transmits the rotational force of the blades to each generator and that allows the generators and blades to be separated from each other, and detects the rotational speed of the blades A wind power generation program for use in a wind power generator having a rotation speed detection sensor and an anemometer,
A data acquisition function for contact and separation that acquires the rotational speed of the blade output from the rotational speed detection sensor and the wind speed value output from the anemometer,
A peripheral speed ratio calculating function for calculating a peripheral speed ratio of the blade based on the rotation speed of the blade and the wind speed value acquired by the data acquisition means for contact and separation
Wind power generation characterized by realizing a generator contact / separation function for performing contact / separation between the first generator and the blade via a rotational force transmission mechanism based on the calculated peripheral speed ratio of the blade Wind power generation program used for equipment. Wind power having a blade that rotates according to wind force, a plurality of generators, a rotational force transmission mechanism that transmits the rotational force of the blades to each generator and that can separately connect and separate each generator and blade, and an anemometer A wind power generation program used for a power generation device,
Contact / separation data acquisition function to acquire the wind speed value output from the anemometer,
Based on the wind speed value acquired by the data acquisition means for contact / separation, a generator contact / separation function for performing contact / separation between the first generator and the blade via a rotational force transmission mechanism is realized. Wind power generation program used for wind power generators. Blades that rotate in accordance with wind power, multiple generators, rotational force transmission mechanism that can transmit the rotational force of the blades to each generator, and each generator and blade can be connected to and separated from each other, and the output value of each generator A wind power generation program for use in a wind power generator having an output meter for measuring
Contact / separation data acquisition function to acquire the output value output from the output meter,
A wind power generator that realizes a generator contact / separation function that allows a second and subsequent generators and blades to contact / separate via a rotational force transmission mechanism based on the acquired output value of the generator. Wind power generation program used for power generation equipment. Blades that rotate according to wind power, a plurality of generators, a rotational force transmission mechanism that transmits the rotational force of the blades to each generator and that can separately connect and separate each generator and blades, and current that flows to each generator A wind power generation program used for a wind turbine generator having an ammeter for measuring a value, and a data acquisition function for contact / separation for acquiring a current value output from the ammeter,
A wind turbine generator characterized by realizing a generator contact / separation function for causing a second and subsequent generators and blades to contact / separate via a rotational force transmission mechanism based on the acquired current value Wind power program used.   An information recording medium in which the generator contact / separation program according to any one of claims 12 to 16 is recorded.