A wind farm tower tilt monitoring system and precise wind detection method

Abstract

The present invention discloses a wind farm tower inclination monitoring system and a precise wind direction method, comprising a wind turbine and an annular base, wherein an auxiliary plate is arranged on the wind turbine, and an inclination sensor which can monitor the inclination of the wind turbine in real time is arranged on the auxiliary plate, the wind turbine is located in the annular base, and concrete columns are arranged around the bottom of the annular base, and an anti-deviation mechanism is arranged on the tower of the wind turbine. By arranging the inclination sensor, the inclination angle of the tower deflection when the wind speed is stable can be monitored in real time, so as to accurately identify and calibrate the wind direction, so that the wind turbine can quickly adjust the direction of the fan blades according to the wind direction, so as to achieve precise wind direction, and by arranging the anti-deviation mechanism, the inclined tower can be supported, and with the cooperation of a first electric telescopic rod and a second electric telescopic rod, the length and angle of the supporting square plate can be fine-tuned, so that the inclination of the tower can be corrected.

Description

Technical Field

[0001] The present invention relates to the technical field of wind farm tower tilt monitoring, and in particular to a wind farm tower tilt monitoring system and a precise wind detection method. Background Art

[0002] Wind power generation refers to the conversion of wind kinetic energy into electrical energy. Wind energy is a clean, pollution-free, renewable energy source that has been used by people for a long time, mainly through windmills to pump water, grind flour, etc. Wind power generation is very environmentally friendly and has huge wind energy reserves, so it is increasingly valued. Since the tower of the wind turbine is relatively high, the wind turbine will be subjected to various loads during operation, such as static loads, steady-state loads, cyclic loads, etc., which will cause the wind turbine to sink, tilt, collapse and other accidents. Therefore, a tower tilt monitoring system is needed to monitor the inclination of the tower in real time.

[0003] However, the traditional wind farm tower tilt monitoring system has poor detection accuracy for the tower tilt and is unable to quickly detect the tower tilt. At the same time, it is unable to perform a series of protective support actions when the tower tilts, which can easily cause the tower to tilt excessively and collapse. The inability to accurately detect the tower tilt means that the wind direction cannot be accurately monitored, which means that the wind turbine cannot be accurately directed to the wind, greatly reducing the power generation efficiency. Therefore, a wind farm tower tilt monitoring system and a precise wind direction method are proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a wind farm tower tilt monitoring system and a precise wind direction method to solve the problem that the traditional wind farm tower tilt monitoring system proposed in the above background technology has poor detection accuracy of the tower tilt, cannot quickly detect the tower tilt, and cannot perform a series of protective support actions when the tower tilts, which easily causes the tower to tilt excessively and collapse, and cannot make the wind turbine accurately face the wind.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind farm tower inclination monitoring system, comprising a wind turbine and an annular base, wherein an auxiliary plate is arranged on the wind turbine, and an inclination sensor which can monitor the inclination of the wind turbine in real time is arranged on the auxiliary plate, the wind turbine is located in the annular base, concrete columns are arranged around the bottom of the annular base, a concrete base is arranged at the bottom of the concrete columns, and an anti-deviation mechanism is arranged on the tower of the wind turbine.

[0006] Preferably, the anti-deviation mechanism includes a first rotating bearing rotatably mounted on the tower of the wind turbine generator, the outer ring of the first rotating bearing is fixedly connected to a fixed cylinder, a plurality of groups of teeth are evenly arranged in a ring at the top of the inner cavity of the fixed cylinder, a mounting plate is fixedly connected to one side of the wind turbine generator tower, a motor is embedded in the mounting plate, a gear that can mesh with the teeth is fixedly connected to the output end of the motor, a square hollow column is rotatably mounted on one side of the fixed cylinder, a supporting square plate is slidably arranged in the square hollow column, one end of the supporting square plate is fixedly connected to a positioning seat used in conjunction with the annular base, a square block is fixedly connected to the left side of the square hollow column, a first electric telescopic rod is inserted in the block, one end of the first electric telescopic rod is fixedly connected to a docking plate, and one side of the docking plate is fixedly connected to the supporting square plate.

[0007] Preferably, the anti-deviation mechanism also includes a second rotating bearing rotatably mounted on the wind turbine tower, and the second rotating bearing is located below the first rotating bearing, the outer ring of the second rotating bearing is fixedly connected to an auxiliary ring, and a second electric telescopic rod is rotatably mounted on one side of the auxiliary ring, and the piston rod of the second electric telescopic rod is rotatably mounted on the square hollow column.

[0008] Preferably, the fixing tube and the auxiliary ring are fixedly connected with a plurality of groups of docking poles around their respective peripheries close to each other, and the number of the docking poles is at least five.

[0009] Preferably, the bottoms of the front and back sides of the supporting square plate are fixedly connected with inclined rods, and one end of the inclined rods is fixedly connected to the positioning seat.

[0010] Preferably, the diameter of the concrete column is smaller than the diameter of the concrete base, three groups of concrete tie rods are evenly arranged on the surface of the concrete base, and a concrete plate is arranged at one end of the concrete tie rod away from the concrete base.

[0011] Preferably, the positioning seat is an arc-shaped structure, and the number of the concrete columns is at least four groups.

[0012] A method for accurately aligning a wind farm tower with the wind comprises the following steps:

[0013] S1. The tilt sensor can monitor the tilt angle of the wind turbine tower in real time when the wind speed is stable, and transmit the detection data to the background control terminal, so as to accurately identify and calibrate the wind direction. At this time, the background control terminal can quickly adjust the direction of the fan blades according to the wind direction to achieve accurate wind direction;

[0014] S2. At the same time, after receiving the tilt position and inclination information of the tower transmitted by the tilt sensor, the background control end can quickly start the motor, and at this time the motor can drive the gear to rotate. Since the fixed cylinder can rotate on the first rotating bearing, the gear and the teeth can cooperate to drive the fixed cylinder to rotate around the first rotating bearing, until the square hollow column, the supporting square plate and the positioning seat are rotated to the side where the wind turbine tower is tilted;

[0015] S3. At this time, the background control terminal controls the first electric telescopic rod and the second electric telescopic rod to open. At this time, the second electric telescopic rod can drive the square hollow column, the supporting square plate and the positioning seat to swing. At the same time, the first electric telescopic rod is used to control the telescopic length of the supporting square plate in the square hollow column until the positioning seat quickly contacts the annular base, so as to support the inclined tower. With the continuous control of the first electric telescopic rod and the second electric telescopic rod, the length and angle of the supporting square plate can be further fine-tuned, so that the inclination of the tower can be corrected, which can effectively prevent the tower from being overly tilted and collapsed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by setting an inclination sensor, the inclination sensor can be used to monitor the inclination angle of the tower when the wind speed is stable in real time, so as to accurately identify and calibrate the wind direction, so that the wind turbine can quickly adjust the direction of the fan blades according to the wind direction, so as to achieve accurate wind direction. By setting an anti-deviation mechanism, after receiving the inclination azimuth and inclination information transmitted to the background control end by the inclination sensor, the square hollow column, the supporting square plate and the positioning seat can be rotated to the side of the inclination of the wind turbine tower with the cooperation of the motor, and with the cooperation of the first electric telescopic rod and the second electric telescopic rod, the telescopic length and swing angle of the square hollow column and the supporting square plate can be controlled, so that the positioning seat can quickly contact the annular base and support the inclined tower, and with the cooperation of the first electric telescopic rod and the second electric telescopic rod, the length and angle of the supporting square plate can be fine-tuned so that the inclination of the tower can be corrected, which can effectively prevent the tower from being too tilted, causing the tower to collapse and affecting the normal use of the wind turbine.

[0018] 2. In the present invention, by setting up multiple sets of docking columns, the fixed cylinder and the auxiliary ring can be connected into a whole, so that the fixed cylinder and the auxiliary ring can rotate synchronously to avoid hysteresis. Through the design of the inclined rod, the positioning seat can be supported so that the positioning seat can fit tightly with the annular base. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a wind farm tower tilt monitoring system of the present invention;

[0020] Figure 2This is a rear structural view of a wind farm tower tilt monitoring system according to the present invention;

[0021] Figure 3 It is a structural cross-sectional view of a square hollow column of the present invention;

[0022] Figure 4 It is a partial three-dimensional diagram of the structure of the anti-deviating mechanism of the present invention;

[0023] Figure 5 It is a structural stereogram of the first rotating bearing, the fixing cylinder and the teeth of the present invention;

[0024] Figure 6 A bottom view of the structure of the annular base of the present invention;

[0025] Figure 7 for Figure 1 A magnified view of the structure at center.

[0026] In the figure: 1. wind turbine; 2. annular base; 3. concrete column; 4. concrete base; 5. concrete tie rod; 6. inclination sensor; 7. anti-drift mechanism; 701. first rotating bearing; 702. fixing cylinder; 703. teeth; 704. motor; 705. gear; 706. square hollow column; 707. supporting square plate; 708. positioning seat; 709. first electric telescopic rod; 710. docking plate; 711. second electric telescopic rod; 712. second rotating bearing; 713. auxiliary ring; 8. mounting plate; 9. block; 10. inclined tie rod; 11. docking column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1-7The present invention provides a technical solution: a wind farm tower inclination monitoring system, comprising a wind turbine 1 and an annular base 2, an auxiliary plate is provided on the wind turbine 1, and an inclination sensor 6 is provided on the auxiliary plate for real-time monitoring of the inclination of the wind turbine 1, the inclination sensor 6 is designed to monitor the inclination of the tower in real-time when the wind speed is stable, so as to accurately identify and calibrate the wind direction, so that the wind turbine 1 can quickly adjust the direction of the fan blades according to the wind direction, so as to achieve accurate wind direction, the wind turbine 1 is located in the annular base 2, concrete columns 3 are provided around the bottom of the annular base 2, a concrete base 4 is provided at the bottom of the concrete columns 3, an anti-deviation mechanism 7 is provided on the tower of the wind turbine 1, and the anti-deviation mechanism 7 is designed to receive the inclination sensor. After the device 6 transmits the tilt azimuth and inclination information to the background control end, with the cooperation of the motor 704, the square hollow column 706, the supporting square plate 707 and the positioning seat 708 can be rotated to the side of the tilted tower of the wind turbine 1, and with the cooperation of the first electric telescopic rod 709 and the second electric telescopic rod 711, the telescopic length and swing angle of the square hollow column 706 and the supporting square plate 707 can be controlled, so that the positioning seat 708 can quickly contact the annular base 2 and support the tilted tower, and with the cooperation of the first electric telescopic rod 709 and the second electric telescopic rod 711, the length and angle of the supporting square plate 707 can be fine-tuned so that the inclination of the tower can be corrected, which can effectively prevent the tower from being tilted too much, causing the tower to collapse and affecting the normal use of the wind turbine 1.

[0030] Example 2

[0031] See also Figure 1-7The present invention provides a technical solution: a wind farm tower inclination monitoring system, comprising a wind turbine 1 and an annular base 2, an auxiliary plate is provided on the wind turbine 1, and an inclination sensor 6 is provided on the auxiliary plate for real-time monitoring of the inclination of the wind turbine 1, the inclination sensor 6 is designed to monitor the inclination of the tower when the wind speed is stable in real time, so as to accurately identify and calibrate the wind direction, so that the wind turbine 1 can quickly adjust the direction of the fan blades according to the wind direction, so as to achieve accurate wind direction, the wind turbine 1 is located in the annular base 2, concrete columns 3 are provided around the bottom of the annular base 2, a concrete base 4 is provided at the bottom of the concrete column 3, and the diameter of the concrete column 3 is smaller than the diameter of the concrete base 4 The diameter of the concrete base 4 is uniformly provided with three groups of concrete tie rods 5, and a concrete plate is provided at one end of the concrete tie rod 5 away from the concrete base 4. The design of the concrete tie rod 5 and the concrete plate further increases the area of ​​the concrete base 4 embedded in the ground, making the concrete base 4 more firm, and further improving the stability of the annular base 2. An anti-deviation mechanism 7 is provided on the tower of the wind turbine 1. The anti-deviation mechanism 7 includes a first rotating bearing 701 rotatably mounted on the tower of the wind turbine 1, the outer ring of the first rotating bearing 701 is fixedly connected with a fixed cylinder 702, and a plurality of groups of teeth 703 are uniformly provided in an annular shape on the top of the inner cavity of the fixed cylinder 702, and a mounting plate 8 is fixedly connected to one side of the tower of the wind turbine 1. A motor 704 is embedded on the plate 8, and a gear 705 that can mesh with the teeth 703 is fixedly connected to the output end of the motor 704. A square hollow column 706 is rotatably installed on one side of the fixed cylinder 702, and a supporting square plate 707 is slidably arranged in the square hollow column 706. One end of the supporting square plate 707 is fixedly connected to a positioning seat 708 used in conjunction with the annular base 2. The bottom of the front and back sides of the supporting square plate 707 are fixedly connected to an inclined rod 10, and one end of the inclined rod 10 is fixedly connected to the positioning seat 708. The design of the inclined rod 10 can support the positioning seat 708 so that the positioning seat 708 can fit closely with the annular base 2. The left side of the square hollow column 706 is fixedly connected to a block 9, and a first motor is inserted in the block 9. Telescopic rod 709, one end of the first electric telescopic rod 709 is fixedly connected to a docking plate 710 and one side of the docking plate 710 is fixedly connected to the supporting square plate 707, the anti-deviation mechanism 7 also includes a second rotating bearing 712 rotatably mounted on the tower of the wind turbine 1 and the second rotating bearing 712 is located below the first rotating bearing 701, the outer ring of the second rotating bearing 712 is fixedly connected to an auxiliary ring 713, one side of the auxiliary ring 713 is rotatably mounted with a second electric telescopic rod 711, the piston rod of the second electric telescopic rod 711 is rotatably mounted on the square hollow column 706, the design of the anti-deviation mechanism 7, after receiving the tilt position and inclination information transmitted to the background control end by the inclination sensor 6, with the cooperation of the motor 704,The square hollow column 706, the supporting square plate 707 and the positioning seat 708 can be rotated to the side where the tower of the wind turbine 1 is tilted, and with the cooperation of the first electric telescopic rod 709 and the second electric telescopic rod 711, the telescopic length and swing angle of the square hollow column 706 and the supporting square plate 707 can be controlled, so that the positioning seat 708 can quickly contact the annular base 2 and support the tilted tower, and with the cooperation of the first electric telescopic rod 709 and the second electric telescopic rod 711, the length and angle of the supporting square plate 707 can be fine-tuned so that the tilt of the tower can be corrected. Effectively avoid the tower from tilting too much, causing the tower to collapse and affecting the normal use of the wind turbine 1. The fixed cylinder 702 and the auxiliary ring 713 are fixedly connected to multiple groups of docking columns 11 around each other. The number of docking columns 11 is at least five groups. The design of at least five groups of docking columns 11 can connect the fixed cylinder 702 and the auxiliary ring 713 into a whole, so that the fixed cylinder 702 and the auxiliary ring 713 can rotate synchronously to avoid hysteresis. The positioning seat 708 has an arc structure, which can better fit the shape of the annular base 2. The number of concrete columns 3 is at least four groups, which further improves the stability of the annular base 2.

[0032] A method for accurately aligning a wind farm tower with the wind comprises the following steps:

[0033] S1. The tilt sensor 6 can monitor the tilt angle of the tower of the wind turbine 1 in real time when the wind speed is stable, and transmit the detection data to the background control terminal, so as to accurately identify and calibrate the wind direction. At this time, the background control terminal can quickly adjust the direction of the fan blades according to the wind direction to achieve accurate wind direction;

[0034] S2. At the same time, after receiving the tilt azimuth and inclination information of the tower transmitted by the tilt sensor 6, the background control end can quickly start the motor 704. At this time, the motor 704 can drive the gear 705 to rotate. Since the fixed cylinder 702 can rotate on the first rotating bearing 701, the gear 705 and the teeth 703 cooperate to drive the fixed cylinder 702 to rotate around the first rotating bearing 701 until the square hollow column 706, the supporting square plate 707 and the positioning seat 708 are rotated to the side where the tower of the wind turbine 1 is tilted;

[0035] S3. At this time, the background control terminal controls the first electric telescopic rod 709 and the second electric telescopic rod 711 to open. At this time, the second electric telescopic rod 711 can drive the square hollow column 706, the supporting square plate 707 and the positioning seat 708 to swing. At the same time, the first electric telescopic rod 709 is used to control the telescopic length of the supporting square plate 707 in the square hollow column 706 until the positioning seat 708 quickly contacts the annular base 2, so that the inclined tower can be supported. With the continuous control of the first electric telescopic rod 709 and the second electric telescopic rod 711, the length and angle of the supporting square plate 707 can be further fine-tuned, so that the inclination of the tower can be corrected, which can effectively prevent the tower from being overly tilted and collapsed.

[0036] However, as is well known to those skilled in the art, the working principles and wiring methods of the inclination sensor 6, the motor 704, the first electric telescopic rod 709 and the second electric telescopic rod 711 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind farm tower tilt monitoring system, comprising a wind turbine (1) and an annular base (2), characterized in that: The wind turbine (1) is provided with an auxiliary plate, and the auxiliary plate is provided with an inclination sensor (6) capable of real-time monitoring of the inclination of the wind turbine (1). The wind turbine (1) is located in an annular base (2), and concrete columns (3) are provided around the bottom of the annular base (2). A concrete base (4) is provided at the bottom of the concrete columns (3). An anti-deviation mechanism (7) is provided on the tower of the wind turbine (1), and the anti-deviation mechanism (7) comprises a rotationally mounted on the wind turbine (1). A first rotating bearing (701) on the tower, the outer ring of the first rotating bearing (701) is fixedly connected to a fixed cylinder (702), the top of the inner cavity of the fixed cylinder (702) is evenly provided with a plurality of groups of teeth (703) in an annular shape, one side of the tower of the wind turbine (1) is fixedly connected to a mounting plate (8), the mounting plate (8) is embedded with a motor (704), the output end of the motor (704) is fixedly connected to a gear (705) that can mesh with the teeth (703), and one side of the fixed cylinder (702) is fixedly connected to a mounting plate (8). The movable device is provided with a square hollow column (706), a supporting square plate (707) is slidably arranged in the square hollow column (706), one end of the supporting square plate (707) is fixedly connected to a positioning seat (708) used in conjunction with the annular base (2), a square block (9) is fixedly connected to the left side of the square hollow column (706), a first electric telescopic rod (709) is inserted in the square block (9), one end of the first electric telescopic rod (709) is fixedly connected to a docking plate (710), and one side of the docking plate (710) is fixedly connected to The anti-deviating mechanism (7) is connected to the supporting square plate (707), and further comprises a second rotating bearing (712) rotatably mounted on the tower of the wind turbine (1), and the second rotating bearing (712) is located below the first rotating bearing (701), and the outer ring of the second rotating bearing (712) is fixedly connected to an auxiliary ring (713), and a second electric telescopic rod (711) is rotatably mounted on one side of the auxiliary ring (713), and the piston rod of the second electric telescopic rod (711) is rotatably mounted on the square hollow column (706).

2. A wind farm tower tilt monitoring system according to claim 1, characterized in that: The fixing tube (702) and the auxiliary ring (713) are fixedly connected to multiple groups of docking poles (11) around their mutually adjacent peripheries, and the number of the docking poles (11) is at least five groups.

3. A wind farm tower tilt monitoring system according to claim 1, characterized in that: The bottoms of the front and back sides of the supporting square plate (707) are fixedly connected with inclined rods (10), and one end of the inclined rods (10) is fixedly connected to the positioning seat (708).

4. A wind farm tower tilt monitoring system according to claim 1, characterized in that: The diameter of the concrete column (3) is smaller than the diameter of the concrete base (4); three groups of concrete tie rods (5) are evenly arranged on the surface of the concrete base (4); and a concrete plate is arranged at one end of the concrete tie rod (5) away from the concrete base (4).

5. A wind farm tower tilt monitoring system according to claim 1, characterized in that: The positioning seat (708) is an arc-shaped structure, and the number of the concrete columns (3) is at least four groups.

6. A precise wind detection method for a wind farm tower tilt monitoring system according to any one of claims 1 to 5, characterized in that: The steps include: S1. The tilt sensor (6) can monitor the tilt angle of the tower of the wind turbine (1) in real time when the wind speed is stable, and transmit the detection data to the background control terminal, so as to accurately identify and calibrate the wind direction. At this time, the background control terminal can quickly adjust the direction of the fan blades according to the wind direction to achieve accurate wind direction; S2. After receiving the information about the tilt position and tilt of the tower transmitted by the tilt sensor (6), the backstage control terminal can quickly start the motor (704). At this time, the motor (704) can drive the gear (705) to rotate. Since the fixed cylinder (702) can rotate on the first rotating bearing (701), the gear (705) and the teeth (703) can cooperate to drive the fixed cylinder (702) to rotate around the first rotating bearing (701) until the square hollow column (706), the supporting square plate (707) and the positioning seat (708) are rotated to the side where the tower of the wind turbine (1) is tilted. S3. At this time, the backstage control terminal controls the first electric telescopic rod (709) and the second electric telescopic rod (711) to open. At this time, the second electric telescopic rod (711) can drive the square hollow column (706), the supporting square plate (707) and the positioning seat (708) to swing. At the same time, the first electric telescopic rod (709) is used to control the telescopic length of the supporting square plate (707) in the square hollow column (706) until the positioning seat (708) quickly contacts the annular base (2), so that the tilted tower can be supported. With the continuous control of the first electric telescopic rod (709) and the second electric telescopic rod (711), the length and angle of the supporting square plate (707) can be further fine-tuned, so that the inclination of the tower can be corrected, which can effectively prevent the tower from being overly tilted and collapsed.

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