JP2008267272A - Wind power generating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such problems that excessive vibration and pulsation are repeated at high speed due to unbalance of a wind turbine, deterioration of material and crack occur on a blade, and breakage of the blade is brought if internal stress of the material eventually exceeds breakdown point when the wind turbine gets into an unbalance state due to snow, adhesion of contaminant such as flying matter, and wear of the blade, and the wind turbine rotates at high speed due to strong wind such as typhoon in a wind power generating device using natural energy. <P>SOLUTION: The wind power generating device provided with the wind turbine rotating with capturing natural wind, a generator converting rotation energy thereof to electric energy, and an accumulator accumulating electric energy, is provided with a brake device stopping rotation of the wind turbine, and a vibration detection means of the wind turbine. The wind power generating device capable of detecting vibration level of the wind turbine thereby and stopping the wind turbine by the brake device is provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wind turbine vibration detection and stop device in a wind power generator using natural energy.

Conventionally, this type of wind turbine vibration countermeasure has a structure that is provided with a damping means for suppressing vibration of a column supporting the wind turbine in order to prevent rotational vibration of the wind turbine and resonance caused by the rotation. Are known. There is also a method of suppressing vibration by making each layer of the rotating shaft independently and avoiding resonance. One of the methods is a structure in which vibration is suppressed by setting the natural frequency of the damping means for supporting the windmill to be lower than the natural frequency of the windmill support (see, for example, Patent Document 1). On the other hand, the wind turbine rotating shaft is divided into layers and made independent, and each layer is waved alternately by a balance effect, and vibration is controlled by a structure that keeps balance while avoiding resonance (for example, see Patent Document 2). ).
JP 2007-40146 A JP-A-2005-42609

  In such a conventional wind turbine generator, the structure that suppresses the state of vibration is generated, so that when the wind turbine is not in a normal state, for example, flying objects such as snow and dust adhere to the wind turbine, or the blades are worn. When the windmill falls into an unbalanced state and the windmill is rotating at a high speed due to strong winds such as typhoons, excessive vibration and pulsation may occur due to the unbalanced windmill even in a vibration control device. Repeated at high speed, there is a problem that the blade material is deteriorated or cracked, and finally the blade is damaged when the internal stress of the material exceeds the breaking point. For this reason, many measures have been taken in the past, and wind turbines equipped with a variable pitch type in which the pitch of the rotor blades changes so that the wind turbine does not rotate at high winds in strong winds are known, but this is a mechanism that suppresses rotational vibration Therefore, damage to the windmill due to excessive vibration is inevitable. There is also a suspended fixed-pitch method, but since there is no mechanism for suppressing rotational vibration, damage to the windmill due to excessive vibration is inevitable.

  In such a conventional method, it is possible to suppress the rotation, but since there is no understanding of the unbalanced state of the blades, there is a problem that it is necessary to check the wind turbine at the installation site and perform maintenance / maintenance. It was.

  Therefore, the present invention solves such a conventional problem, and it is possible to check the state of the windmill at a remote place, and when it is abnormal, the wind turbine generator does not stop the windmill and damage the windmill. The purpose is to provide.

  In order to solve the above problems, a wind turbine generator according to claim 1 is a windmill that captures and rotates natural wind, a generator that converts the rotational energy into electrical energy, and a storage battery that stores the electrical energy. The wind turbine generator includes a brake device that stops rotation of the windmill, and vibration detection means of the windmill.

  According to a second aspect of the present invention, in the vibration detecting means of the wind turbine generator according to the first aspect, a plurality of the vibration detecting means are mounted so that each can detect a vibration level.

  According to a third aspect of the present invention, in the vibration detection means of the wind turbine generator according to any one of the first to second aspects, the vibration detection means is disposed in the vicinity of a bearing that supports the windmill. .

  According to a fourth aspect of the present invention, in the vibration detection means of the wind turbine generator according to any one of the first to third aspects, when there are a plurality of bearings supporting the windmill, the vibration detection is performed in the vicinity of each bearing. The means is arranged.

  According to a fifth aspect of the present invention, in the vibration detection means of the wind turbine generator according to the first or second aspect, the vibration detection means is arranged in a generator.

  According to a sixth aspect of the present invention, in the vibration detection means of the wind turbine generator according to any one of the first to fifth aspects, the brake is applied when the vibration level detected by the vibration detection means exceeds an arbitrary value. It has a function of operating the device and stopping the windmill.

  According to a seventh aspect of the present invention, in the vibration detection means of the wind turbine generator according to any one of the first to fifth aspects, the vibration level detected by the vibration detection means is a predetermined numerical value or more and continues for an arbitrary time. In addition, a function of automatically operating the brake device to stop the windmill is provided.

  The invention according to claim 8 is the brake device of the wind turbine generator according to claim 6 or 7, wherein after the wind turbine stopped by the brake device has elapsed for a predetermined time, braking of the brake is released and the wind turbine is It is provided with a function for enabling rotation.

  According to a ninth aspect of the present invention, in the brake device for a wind turbine generator according to the eighth aspect, after a predetermined time has passed after the windmill stopped by the brake device, the brake can be released to rotate the windmill. In this case, the brake is provided with a function of not releasing the brake when the state is repeated a predetermined number of times.

  According to a tenth aspect of the present invention, in the vibration detection means of the wind turbine generator according to any one of the first to ninth aspects, the vibration level detected by the vibration detection means can be set at an arbitrary point using radio or wire. A communication device is provided that can transmit or check the vibration level of the vibration detection means from an arbitrary point.

  The invention according to claim 11 is the brake device for a wind turbine generator according to claim 10, characterized in that the brake device can be operated at an arbitrary point using a wireless or wired communication device.

  The invention according to claim 12 is the vibration detection means of the wind turbine generator according to claim 10 or claim 11, wherein the vibration detection means detects that the vibration level detected by the vibration detection means exceeds an arbitrary numerical value or is wirelessly transmitted to an arbitrary point. It is characterized by having a function of performing automatic transmission with a wired communication device.

  According to a thirteenth aspect of the present invention, in the vibration detection means of the wind turbine generator according to any one of the tenth to twelfth aspects, the vibration level detected by the vibration detection means is a predetermined numerical value or more and continues for an arbitrary time. Is classified into “normal”, “maintenance required”, and “abnormal” status, and a function to automatically transmit to any point with a wireless or wired communication device to notify that maintenance or repair is necessary It is characterized by that.

  The invention according to claim 14 is the brake device for a wind turbine generator according to any one of claims 1 to 13, wherein the generator is used as an electromagnetic brake for braking the windmill as the brake device. It is characterized by that.

  As is clear from the above description, according to the present invention, when the windmill is not in a normal state, the windmill is in an unbalanced state due to, for example, flying objects such as snow and dust attached to the windmill or wearing of blades. It is possible to provide a wind turbine generator that does not damage the windmill, if it falls, it can grasp the situation of the windmill from any point without going to the installation site, and can stop the windmill when the windmill is unbalanced It is.

  In addition, because the vibration level is detected, it is possible to automatically transmit the current status such as normal, maintenance-required, abnormal, etc. by communication, so it is possible to determine the maintenance / maintenance time without going to the site. ing.

  The first embodiment of the present invention is a wind turbine generator that includes a windmill that rotates by capturing natural wind, a generator that converts the rotational energy into electrical energy, and a storage battery that stores the electrical energy. The brake device is configured to include a brake device for stopping the rotation of the windmill and vibration detection means of the windmill. Thereby, it is possible to operate the brake device and stop the windmill according to the vibration level of the vibration detecting means.

  According to a second embodiment of the present invention, in the wind turbine generator according to the first embodiment, a plurality of the vibration detection means are mounted so that each can detect a vibration level. If the reliability of the vibration level is low due to the influence of noise and other disturbances when installed alone, the vibration level will be raised, and if the vibration detection means cannot be used due to a failure, multiple vibrations will be installed. Level measurement can be continued.

  According to a third embodiment of the present invention, in the wind turbine generator according to the first to second embodiments, the vibration detection means is arranged near a bearing that supports the windmill. It is possible to measure the vibration level with high accuracy by arranging it near the bearing that supports the wind turbine that generates vibration.

  According to a fourth embodiment of the present invention, in the wind turbine generator according to the first to third embodiments, when there are a plurality of bearings that support the windmill, the vibration detection is performed in the vicinity of each bearing. In this configuration, all the vibration levels of the bearings supporting the wind turbine can be measured.

  In the fifth embodiment of the present invention, in the wind turbine generator according to the first to second embodiments, the vibration detecting means is arranged in the generator, so that a small horizontal axis is provided. Even in a device such as a windmill that does not have a bearing alone, the vibration level can be measured by arranging the vibration detection means in a generator driven coaxially with the windmill.

  According to a sixth embodiment of the present invention, in the wind turbine generator according to the first to fifth embodiments, the brake is applied when the vibration level detected by the vibration detection means exceeds an arbitrary value. It is configured to have a function of operating the device and stopping the windmill, and it is possible to stop the windmill without going to the installation site in the event of an abnormality and prevent damage to the windmill.

  In the seventh embodiment of the present invention, in the wind turbine generator according to the first to fifth embodiments, the vibration level detected by the vibration detection means is not less than a predetermined numerical value and continues for an arbitrary time. In addition, it is configured to have a function of automatically operating the brake device to stop the windmill, and it is possible to increase the accuracy of the abnormal state by detecting the magnitude and duration of the vibration level. In addition, it is possible to stop the windmill without going to the installation site and prevent the windmill from being damaged.

  According to an eighth embodiment of the present invention, in the wind turbine generator according to the sixth embodiment or the seventh embodiment, braking of the brake is performed after a predetermined time has elapsed for the wind turbine stopped by the brake device. The windmill is configured to have a function of opening the windmill so that the windmill can rotate, and when a flying object is temporarily attached, a situation in which the windmill is temporarily stopped is created. It can be peeled off naturally from the windmill and dropped.

  According to a ninth embodiment of the present invention, in the wind turbine generator according to the eighth embodiment, after the wind turbine stopped by the brake device has elapsed for a predetermined time, braking of the brake is released to rotate the wind turbine. It is configured with a function that does not release the brake when a possible state is repeated for a predetermined number of times, and the windmill is repeatedly stopped and started due to abnormal vibration, so that the material deterioration of the windmill and It is possible to prevent cracks from occurring and breakage.

  According to a tenth embodiment of the present invention, in the wind turbine generator according to the first to ninth embodiments, the vibration level detected by the vibration detection unit is set to an arbitrary point using wireless or wired communication. It is configured to include a communication device that can transmit or check the vibration level of the vibration detection means from an arbitrary point, and the vibration level of the windmill can be confirmed from a remote place.

  According to an eleventh embodiment of the present invention, in the wind turbine generator according to the tenth embodiment, the brake device can be operated at an arbitrary point using a wireless or wired communication device. Can be stopped from a remote location.

  According to a twelfth embodiment of the present invention, in the wind turbine generator according to the tenth or eleventh embodiment, when the vibration level detected by the vibration detection means exceeds an arbitrary numerical value, the wireless or wired connection to an arbitrary point is performed. The communication device is provided with a function of performing automatic transmission, and the vibration level can be confirmed without going to the installation site.

  In the thirteenth embodiment of the present invention, in the wind turbine generator according to the first to twelfth embodiments, the vibration level detected by the vibration detecting means is equal to or greater than a predetermined value and continues for an arbitrary time. Is classified into “normal”, “maintenance required”, and “abnormal” status, and a function to automatically transmit to any point with a wireless or wired communication device to notify that maintenance or repair is necessary It is possible to check the status of the wind turbine without going to the installation site, and to grasp the maintenance and the maintenance time.

  According to a fourteenth embodiment of the present invention, in the wind turbine generator according to the first to thirteenth embodiments, the generator is used as an electromagnetic brake to brake the windmill as the brake device. It is configured to be used, and the dedicated generator is not provided, and the generator is also used as the brake device, so that the installation space and the number of parts can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

  Hereinafter, an embodiment of a streetlight device using the wind power generator of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of an overall outline of a wind turbine generator according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the wind turbine generator equipped with vibration detection means of the wind turbine generator according to the first embodiment of the present invention. FIG. 3 is a partial sectional view of the wind power generator provided with a plurality of vibration detecting means of the wind power generator according to the second embodiment of the present invention, and FIG. 4 shows the vicinity of the bearing of the wind power generator according to the third embodiment of the present invention. FIG. 5 is a partial cross-sectional view of the wind power generator equipped with vibration detecting means in the vicinity of each bearing of the wind power generator according to the fourth embodiment of the present invention. FIG. 6 is a perspective view showing an overall outline of the wind power generator provided with vibration detecting means in the generator of the horizontal axis wind turbine of the wind power generator according to the fifth embodiment of the present invention, and FIG. FIG. 8 shows the wind power generation according to the seventh embodiment of the present invention. FIG. 9 is a graph showing the relationship between the vibration level and automatic transmission of the wind turbine generator according to the eighth embodiment of the present invention, and FIG. 10 is a diagram of the wind turbine generator according to the ninth embodiment of the present invention. FIG. 11 is a graph showing the relationship between the vibration level and the brake operation, FIG. 11 is a graph showing the relationship between the vibration level and the brake operation of the wind turbine generator according to the tenth embodiment of the present invention, and FIG. 12 is the wind power according to the eleventh embodiment of the present invention. FIG. 13 is a flowchart showing the relationship between the vibration level of the power generation device and the brake operation and the brake release, FIG. 13 is a flowchart showing the relationship between the vibration level of the wind power generation device of the twelfth embodiment of the present invention and the brake operation and the brake release, and FIG. FIG. 15 is a flowchart showing the relationship of automatic communication according to the vibration level state classification of the wind turbine generator according to the thirteenth embodiment of the present invention, and FIG. 15 shows the brake function of the wind turbine generator according to the fourteenth embodiment of the present invention. It is a partial cross-sectional view of a generator set to.

Example 1
FIG. 1 is a perspective view of an overall outline of a wind turbine generator according to an embodiment of the present invention, and FIG. 2 is a partial cross-sectional view of the wind turbine generator having vibration detection means of the wind turbine generator according to the first embodiment of the present invention. is there.

  The overall configuration of the wind turbine generator according to the present embodiment includes a windmill 1, a power generator 30 that converts rotational energy of the windmill 1 into electrical energy, a power storage device 40 that stores electric power generated by the power generator 30, and a power storage device 40. And an illuminating device 50 that is lit using the electric power stored in the battery. And the windmill 1, the electric power generating apparatus 30, the electrical storage apparatus 40, and the illuminating device 50 are each hold | maintained at predetermined height from the ground so that it may be inserted | pinched between the two poles 2. FIG. The pole 2 is installed on the ground by a mounting base 3, and the mounting base 3 is installed by a fixture such as an anchor bolt.

  The lower end of the windmill 1 is connected coaxially with the rotating shaft of the generator 5 provided in the power generator 30. The windmill 1 includes a rotating shaft 7 to which a generator 5 is connected via a joint 6, and a plurality of windmill blades 8 arranged around the rotating shaft 7. Bearings 9 are respectively provided at the upper and lower portions of the rotating shaft 7, and the rotating shafts 7 are held by the respective bearings 9. The bearings 9 are respectively provided inside the upper casing 20 and the power generation device 30. Yes.

  A lighting device 50 is attached to the lower part of the power generation device 30, and the lighting 11 is provided inside.

  A control box and a lead storage battery are provided inside the power storage device 40, and can be automatically turned on and off by an illuminance sensor. The power storage device 40 includes an inspection door 14 for performing maintenance.

  The power generation device 30 and the lighting device 50 are electrically connected to the power storage device 40 via a control box, and the power generated by the rotational energy of the windmill 1 is stored in the power storage device 40 and stored in the power storage device 40. Electric power is supplied to the lighting device 50 to light it.

  In this embodiment, the appearance of the arrangement of the vibration detection means 4 is shown in FIG. In FIG. 2, the vibration detection means 4 is fixed to the sheet metal part to which the generator 5 is attached so as to detect the vibration level. In this embodiment, an acceleration sensor is used as the vibration detecting means.

  Hereinafter, another embodiment of the wind turbine generator of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the structure which has the same function as the said Example, and description is abbreviate | omitted. Other configurations not shown in the following embodiment are the same as those in the above embodiment.

(Example 2)
FIG. 3 is a partial cross-sectional view of the wind turbine generator provided with a plurality of vibration detecting means of the wind turbine generator according to the second embodiment of the present invention. As shown in FIG. 3, two vibration detection means 4 are arranged on the sheet metal part to which the generator 5 is attached to detect the vibration level. Thereby, when the vibration detection means 4 is used alone, when the reliability of the vibration level is low due to the influence of a disturbance such as noise, the vibration level accuracy is improved by mounting a plurality of vibration detection means 4 and the vibration detection means. When the 4 becomes unable to be used due to a failure, the vibration level can be continuously measured by installing a plurality of 4.

(Example 3)
FIG. 4 is a partial cross-sectional view of the wind turbine generator provided with vibration detecting means near the bearing 9 of the wind turbine generator according to the third embodiment of the present invention. As shown in FIG. 4, the vibration detecting means 4 is arranged in the vicinity of the bearing 9 supporting the windmill 1 so as to detect the vibration level. Thereby, it is possible to improve the accuracy of the vibration level by detecting at a position close to the vibration source.

Example 4
FIG. 5 is a partial cross-sectional view of the wind turbine generator provided with vibration detecting means near each bearing of the wind turbine generator according to the fourth embodiment of the present invention. As shown in FIG. 5, the vibration detecting means 4 is arranged on both the upper and lower bearings 9 supporting the windmill 1 so as to detect the vibration level. Thereby, since a plurality of detections are performed at a position close to the vibration source, the accuracy of the vibration level can be improved.

(Example 5)
FIG. 6 is an overall schematic perspective view of the wind power generator provided with vibration detecting means in the generator of the horizontal axis wind turbine of the wind power generator according to the fifth embodiment of the present invention. As shown in FIG. 6, the vibration detection means 4 is arranged in the generator 5 so as to detect the vibration level. As a result, the vibration level can be measured even in a device such as a small horizontal axis windmill that does not have the bearing 9 alone.

(Example 6)
FIG. 7 shows a communication device portion of the vibration level of the wind turbine generator according to the sixth embodiment of the present invention.

  As shown in FIG. 7, the vibration level detected by the vibration detection means 4 is relayed through the communication device 12 provided in the power generation device 30 and transmitted from the antenna 13 attached to the pole 2 to an arbitrary point, or from an arbitrary point. Can be received. Thereby, the vibration level of the windmill 1 can be confirmed from an arbitrary point without going to the installation site.

  Note that the communication device 12 can use wired communication in addition to wireless communication when an arbitrary point is a short distance.

(Example 7)
FIG. 8 shows a communication device portion of a brake device of a wind turbine generator according to a seventh embodiment of the present invention.

  As shown in FIG. 8, the brake device 10 provided in the power generation device 30 and sandwiching the disc brake 10 a fixed coaxially with the rotating shaft 7 with the brake caliper 10 b brakes the windmill 1 electrically connected to the communication device 12. The antenna 13 attached to the pole 2 communicates from an arbitrary point so that the brake device 10 can be operated. As a result, it is possible to operate the brake from any point without going to the installation site.

  Note that the communication device 12 can use wired communication in addition to wireless communication when an arbitrary point is a short distance.

(Example 8)
FIG. 9 is a graph showing the relationship between the vibration level and automatic transmission of the wind turbine generator according to the eighth embodiment of the present invention. As shown in FIG. 9, when the detected vibration level exceeds a predetermined abnormal level, automatic transmission is performed to an arbitrary point. Thereby, it is possible to check the abnormal state of the vibration level of the windmill 1 without going to the installation site.

Example 9
FIG. 10 is a graph showing the relationship between the vibration level and the brake operation of the wind turbine generator according to the ninth embodiment of the present invention. As shown in FIG. 10, the brake operation is automatically performed when the detected vibration level exceeds a predetermined abnormal level. Thereby, the windmill 1 can be stopped by the automatic operation of the brake device 10 without going to the installation site when the vibration level of the windmill 1 is abnormal, and the windmill 1 can be prevented from being damaged.

(Example 10)
FIG. 11 is a graph showing the relationship between the vibration level and the brake operation of the wind turbine generator according to the tenth embodiment of the present invention. As shown in FIG. 11, when the detected vibration level continues a predetermined abnormal level for a predetermined time, the brake operation is automatically performed. Thereby, the accuracy of the abnormal state of the vibration level of the windmill 1 is increased, and the windmill 1 can be stopped by the automatic operation of the brake device 10 without going to the installation site, thereby preventing the windmill 1 from being damaged.

(Example 11)
FIG. 12 is a graph showing the relationship between the vibration level of the wind turbine generator of the eleventh embodiment of the present invention and the brake operation and brake release. As shown in FIG. 12, when the wind turbine 1 stopped by the brake device 10 elapses for a predetermined time, braking of the brake is released. As a result, when a flying object is temporarily attached to the windmill 1, a situation where the windmill 1 is temporarily stopped is created so that the flying object naturally peels off from the windmill 1 and the flying object 1 rotates. It is possible to make it the state which has not adhered.

(Example 12)
FIG. 13 is a flowchart showing the relationship between the vibration level of the wind turbine generator of the twelfth embodiment of the present invention and the brake operation and brake release. As shown in FIG. 13, the brake is not released when the wind turbine 1 is stopped and rotated a predetermined number of times due to an abnormal vibration level. Thereby, since the windmill 1 is not repeatedly stopped and rotated under an abnormal vibration level, the material is not deteriorated or cracked, and the windmill 1 can be prevented from being damaged.

(Example 13)
FIG. 14 is a flowchart showing the relationship of automatic communication based on the vibration level state classification of the wind turbine generator according to the thirteenth embodiment of the present invention. As shown in FIG. 14, the detected vibration levels are classified into “normal”, “maintenance required”, and “abnormal” states with predetermined numerical values, and automatic transmission is performed by the communication device 12. Thereby, the status of the windmill 1 can be confirmed without going to the installation site, and the maintenance / maintenance time can be grasped.

(Example 14)
FIG. 15 is a partial cross-sectional view of a generator that also serves as a brake in a wind power generator according to a fourteenth embodiment of the present invention. As shown in FIG. 15, the generator 5 is used as an electromagnetic brake to provide a braking function and brake the windmill 1. Thereby, the installation space and the number of parts can be reduced.

  The blades of the windmill 1 of the present invention may be other than Savonius and propeller, and do not stick to the shape of the blades as long as they rotate by natural wind.

  Although the present invention relates to protection of wind turbine blades when subjected to natural wind, the present invention can also be applied to those rotating by water flow or other fluids.

1 is a perspective view of an overall outline of a wind turbine generator according to an embodiment of the present invention. 1 is a partial cross-sectional view of a wind power generator equipped with vibration detection means of the wind power generator according to the first embodiment of the present invention. Partial sectional view of the wind turbine generator provided with a plurality of vibration detecting means of the wind turbine generator of the second embodiment of the present invention. Partial sectional view of the wind turbine generator provided with vibration detecting means near the bearing of the wind turbine generator of the third embodiment of the present invention. Partial sectional view of the wind turbine generator provided with vibration detecting means near each bearing of the wind turbine generator of the fourth embodiment of the present invention. Whole outline perspective view of the wind power generator provided with vibration detecting means in the generator of the horizontal axis wind turbine of the wind power generator of the fifth embodiment of the present invention. The figure which shows the communication apparatus part of the vibration level of the wind power generator of 6th Example of this invention. The figure which shows the communication apparatus part of the brake device of the wind power generator of 7th Example of this invention. The graph which shows the relationship between the vibration level of the wind power generator of the 8th Example of this invention, and automatic transmission The graph which shows the relationship between the vibration level of the wind power generator of 9th Example of this invention, and a brake action | operation The graph which shows the relationship between the vibration level of the wind power generator of 10th Example of this invention, and a brake action | operation The graph which shows the relationship between the vibration level of the wind power generator of the 11th Example of this invention, brake operation, and brake release. The flowchart which shows the relationship between the vibration level of the wind power generator of 12th Example of this invention, a brake action, and brake release. The flowchart which shows the relationship of the automatic communication by the vibration level state classification | category of the wind power generator of 13th Example of this invention. The fragmentary sectional view of the generator used also as the brake of the wind power generator of the 14th embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Windmill 2 Pole 3 Mounting stand 4 Vibration detection means 5 Generator 6 Joint 7 Rotating shaft 8 Windmill blade 9 Bearing 10 Brake device 10a Disc brake 10b Brake caliper 11 Illumination 12 Communication device 13 Antenna 14 Inspection door 20 Upper casing 30 Power generation device 40 Power storage device 50 Lighting device

Claims (14)

In a wind power generator comprising a windmill that rotates by capturing natural wind, a generator that converts the rotational energy into electric energy, and a storage battery that stores the electric energy, a brake device that stops the rotation of the windmill, A wind turbine generator comprising wind turbine vibration detecting means. The wind turbine generator according to claim 1, wherein a plurality of the vibration detection means are mounted so that each can detect a vibration level. The wind turbine generator according to claim 1 or 2, wherein the vibration detecting means is disposed near a bearing that supports the windmill. The wind turbine generator according to any one of claims 1 to 3, wherein a plurality of bearings for supporting the wind turbine are provided, and the vibration detecting means is arranged in the vicinity of each bearing. The wind power generator according to claim 1 or 2, wherein the vibration detection means is arranged in a generator. 6. The function according to claim 1, further comprising a function of operating the brake device and stopping the windmill when a vibration level detected by the vibration detection unit exceeds an arbitrary numerical value. Wind power generator. 2. A function according to claim 1, further comprising a function of automatically operating the brake device to stop the wind turbine when the vibration level detected by the vibration detection means continues for an arbitrary time at a predetermined numerical value or more. The wind power generator according to any one of 5. 8. The wind power according to claim 6, further comprising a function of releasing the braking of the wind turbine stopped by the brake device and allowing the wind turbine to rotate after a predetermined time has elapsed. Power generation device. When the wind turbine stopped by the brake device has passed a predetermined time, the brake is released and the brake is released for a predetermined number of times. The wind power generator according to claim 8, wherein 2. A communication apparatus capable of transmitting a vibration level detected by the vibration detection unit to an arbitrary point using wireless or wired communication, or confirming the vibration level of the vibration detection unit from an arbitrary point. The wind power generator according to claim 9. The wind turbine generator according to claim 10, wherein the brake device is operable at an arbitrary point using a wireless or wired communication device. The wind power according to claim 10 or 11, further comprising a function of automatically transmitting to an arbitrary point by a wireless or wired communication device when a vibration level detected by the vibration detection unit exceeds an arbitrary numerical value. Power generation device. The vibration level detected by the vibration detection means is classified as “normal”, “maintenance required”, or “abnormal” when the vibration level is longer than a predetermined value and continued for an arbitrary time, and there is a need for maintenance or repair. The wind power generator according to any one of claims 10 to 12, further comprising a function of performing automatic transmission to a desired point using a wireless or wired communication device. The wind power generator according to any one of claims 1 to 13, wherein, as the brake device, the generator is used as an electromagnetic brake to brake the windmill.

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