Wind power generator cabin yaw practical training device

Abstract

The utility model relates to a wind power generator cabin yaw practical training device. The technical problem to be solved by the utility model is to provide a wind power generator cabin yaw practical training device. According to the technical scheme, the yaw device comprises a foundation base, a cabin unit and a yaw unit, and the cabin unit comprises a cabin, a wind wheel transmission system, an electrical control system, a wind speed sensor, a wind direction sensor and a warning lamp. The wind wheel transmission system comprises a stepping motor, a speed reducer, a wind wheel main shaft, a main shaft coupling, a speed measurement positioning disc, a simulation wind wheel and an electric push rod, the stepping motor is connected with the speed reducer, and the speed reducer is connected with the wind wheel main shaft through the main shaft coupling. The utility model has the advantages that: the wind turbine wind wheel speed change and yaw actions can be clearly displayed, the model structure is highly similar to a real wind turbine, and students can more easily understand and master complex concepts and operations.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, and particularly relates to a yaw training device for a wind turbine nacelle. Background Technique

[0002] In recent years, with the continuous development of the wind power market, the demand for wind power operation and maintenance skilled talents has been increasing continuously, and the required functions of corresponding wind power operation and maintenance training equipment have been increasing continuously. Especially, better simulation degrees are required in the process display and structural composition of the wind power operation process. At present, there are still certain deficiencies in the clear display of the structural composition and actions of the wind power training model, lacking the sense of reality in the wind power operation process, the operation function display is not comprehensive enough, the control system composition is relatively simple, which is not convenient for the practical training and comprehensive skill cultivation of wind power operation and maintenance talents. Content of the Utility Model

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide a yaw training device for a wind turbine nacelle.

[0004] The technical solution adopted by the yaw training device for a wind turbine nacelle of the utility model is characterized in that it includes a basic base, a nacelle unit and a yaw unit arranged on the basic base. The nacelle unit includes a nacelle, a wind wheel drive system and an electrical control system arranged in the nacelle, a wind speed sensor, a wind direction sensor and a warning light arranged above the nacelle. The wind wheel drive system includes a stepping motor, a reducer, a wind wheel main shaft, a main shaft coupling, a speed measurement and positioning disc and a simulated wind wheel mounted on the wind wheel main shaft, and an electric push rod. The stepping motor is connected with the reducer, the reducer is connected with the wind wheel main shaft through the main shaft coupling, the simulated wind wheel and the speed measurement and positioning disc rotate synchronously. The simulated wind wheel is fixed with simulated blades and a protective cover covering the simulated blades. The speed measurement and positioning disc is provided with an origin detection part and a plurality of speed measurement holes for simulating the speed measurement and position locking of the wind wheel. A first sensor, a second sensor and a third sensor are arranged beside the speed measurement and positioning disc. The first sensor and the second sensor detect the rotation speed and direction of the simulated wind wheel through the speed measurement and positioning disc. The origin detection part performs origin positioning detection of the speed measurement and positioning disc through the third sensor. The front part of the electric push rod is connected with a positioning pin, and the positioning pin performs positioning control of the simulated wind wheel by inserting into the speed measurement hole on the speed measurement and positioning disc.

[0005] The basic base includes a basic bottom plate, universal wheels arranged below the basic bottom plate, columns arranged at four corners of the basic bottom plate, a safety light curtain sensor, a first emergency stop button and a second emergency stop button arranged on the columns. The safety light curtain sensor is used for intrusion alarm, and the first emergency stop button and the second emergency stop button are used for the emergency stop action of the wind turbine model.

[0006] A fourth sensor is also installed beside the speed measurement and positioning disc. The fourth sensor is used for detecting the extension of the positioning pin, and the fourth sensor is fixed in the nacelle by a second bracket.

[0007] The nacelle is fixed on a fixed base plate. A first transparent observation door and a second transparent observation door are provided at the front and rear of the nacelle. Both the first transparent observation door and the second transparent observation door are rotatably fixed on the fixed base plate through hinges.

[0008] The speed reducer is fixed on a motor fixing seat. The motor fixing seat is fixed to the nacelle through a connecting support. The wind turbine main shaft is installed in a main shaft flange through a main shaft bearing. The main shaft flange is fixed on the nacelle. The first sensor, the second sensor, and the third sensor are all fixed in the nacelle by a first bracket.

[0009] The yaw unit includes a tower barrel, a slewing bearing, a first yaw reduction motor, a second yaw reduction motor, an optoelectronic encoder for recording the nacelle position and yaw speed, a rotation limit switch, and a yaw origin bracket fixed on the foundation base. The upper part of the slewing bearing is connected to the fixed base plate. The first yaw reduction motor meshes and rotates with the slewing bearing through a first yaw gear. The second yaw reduction motor meshes and rotates with the slewing bearing through a second yaw gear. The slewing bearing drives the nacelle to yaw for wind alignment. The optoelectronic encoder is connected to a speed measurement gear through a speed measurement coupling. The rotation limit switch is provided with a position contact, and a position detection gear is connected to its shaft. When the nacelle yaws, the position detection gear drives the rotation of the rotation limit switch shaft. The continuous rotation of the nacelle can trigger the position contact on the rotation limit switch to perform feedback on the extreme position of cable torsion.

[0010] A yaw guard is installed on the fixed base plate. The yaw guard adopts a hexagonal frame structure, and each side is provided with transparent plexiglass. A yaw origin detection sensor is installed on the yaw guard. The yaw origin detection sensor locates the yaw origin by detecting the in-place information of the yaw origin bracket.

[0011] A transparent viewing window and a cable adapter are installed outside the tower barrel. A wire splitter is installed inside the tower barrel, and the twisting condition of the cable during the rotation of the nacelle can be observed through the transparent viewing window.

[0012] The advantages of the yaw training device for the wind turbine nacelle of the present utility model are as follows: 1. High simulation degree: It can clearly display the variable speed and yaw actions of the wind turbine rotor. The model structure is highly similar to that of a real wind turbine, and it can also display functions such as corresponding overspeed alarm, simulated rotor locking, and extreme protection against cable twisting, which is convenient for students to more easily understand and master complex concepts and operations; 2. Strong practicality: It adopts the structural shape of a scaled-down version of the wind turbine, which is convenient for the operation and maintenance of the variable speed and yaw operation of the wind turbine and the electrical fault repair. At the same time, it has the characteristics of small floor area and low price; 3. High safety: It is equipped with structural components such as a safety light curtain sensor, an emergency stop button, an operation warning light indicator, a transparent observation door for the nacelle, and a yaw guard, with multiple safety protections such as electrical protection and mechanical protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0014] Figure 1 is a schematic structural diagram of the yaw training device for the wind turbine nacelle of the present utility model;

[0015] Figure 2 is a partial cross-sectional view of the yaw training device for the wind turbine nacelle of the present utility model;

[0016] Figure 3 is a schematic structural diagram of a structure of the nacelle unit and the yaw unit of the present utility model;

[0017] Figure 4 is a cross-sectional view of the wind turbine drive system of the present utility model;

[0018] Figure 5 is a partial schematic structural diagram of the wind turbine drive system of the present utility model;

[0019] Figure 6 is a schematic structural diagram of the electrical control system of the present utility model;

[0020] Figure 7 is a schematic internal structure diagram of the nacelle unit of the present utility model;

[0021] Figure 8 is another schematic structural diagram of the nacelle unit and the yaw unit of the present utility model. SPECIFIC EMBODIMENTS

[0022] As Figure 1-8As shown in the figure, the yaw training device for a wind turbine nacelle according to the present utility model includes a basic base 1, a nacelle unit 2 and a yaw unit 3 provided on the basic base 1. The nacelle unit 2 includes a nacelle 14, a wind turbine drive system 12 and an electrical control system 13 provided in the nacelle 14, a wind speed sensor 31, a wind direction sensor 32 and a warning light 33 provided above the nacelle 14. The wind speed sensor 31 is used for giving a signal for adjusting the rotation speed of the wind turbine drive system 12, the wind direction sensor 32 is used for giving a signal for controlling the nacelle yaw of the yaw unit 2, and the warning light 33 is used for warning the operation of the wind turbine model, clearly demonstrating the variable speed and yaw actions of the wind turbine rotor. The model structure is highly similar to that of a real wind turbine, and functions such as corresponding overspeed alarm, simulated wind turbine locking, and extreme protection against cable torsion can be demonstrated, facilitating students to more easily understand and master complex concepts and operations.

[0023] The wind turbine drive system 12 includes a stepper motor 40, a speed reducer 39, a wind turbine main shaft 35, a main shaft coupling 44, a speed measurement and positioning disk 37 and a simulated wind turbine 24 mounted on the wind turbine main shaft 35, and an electric push rod 53. The stepper motor 40 is connected to the speed reducer 39, and the speed reducer 39 is connected to the wind turbine main shaft 35 through the main shaft coupling 44. The simulated wind turbine 24 and the speed measurement and positioning disk 37 rotate synchronously. A simulated blade 23 and a protective cover 11 covering the simulated blade 23 are fixed on the simulated wind turbine 24. An origin detection element 45 and a plurality of speed measurement holes 43 for measuring the speed and position locking of the simulated wind turbine 24 are provided on the speed measurement and positioning disk 37. A first sensor 47, a second sensor 48 and a third sensor 46 are installed beside the speed measurement and positioning disk 37. The first sensor 47 and the second sensor 48 detect the rotation speed and direction of the simulated wind turbine 24 through the speed measurement and positioning disk 37. The origin detection element 45 performs origin positioning detection of the speed measurement and positioning disk 37 through the third sensor 46. The front part of the electric push rod 53 is connected with a positioning pin 52, and the positioning pin 52 performs positioning control of the simulated wind turbine 24 by inserting into the speed measurement hole 43 on the speed measurement and positioning disk 37. Adopting a scaled-down structure of the wind turbine, it is convenient for performing variable speed operation and maintenance of the wind turbine and electrical fault repair, and at the same time has the characteristics of small footprint and low cost.

[0024] The basic base 1 includes a basic bottom plate 5, universal wheels 4 provided below the basic bottom plate 5, columns 6 provided at four corners of the basic bottom plate 5, a safety light curtain sensor 7, a first emergency stop button 8 and a second emergency stop button 9 provided on the columns 6. The safety light curtain sensor 7 is used for intrusion alarm, and the first emergency stop button 8 and the second emergency stop button 9 are used for the emergency stop action of the wind turbine model, with high safety and effectively preventing students from being injured during practice.

[0025] There is also a fourth sensor 49 installed beside the speed measurement and positioning disc 37. The fourth sensor 49 is used for detecting the extension of the positioning pin 52, and the fourth sensor 49 is fixed in the nacelle 14 by a second bracket 50.

[0026] The nacelle 14 is fixed on the fixed bottom plate 25. A first transparent observation door 10 and a second transparent observation door 16 are provided at the front and rear of the nacelle 14. Both the first transparent observation door 10 and the second transparent observation door 16 are flip - fixed on the fixed bottom plate 25 through hinges 15, which is convenient for students to observe and practice operations.

[0027] The speed reducer 39 is fixed on the motor fixing seat 38. The motor fixing seat 38 is fixed to the nacelle 14 through a connecting support 41. The wind turbine main shaft 35 is installed in the main shaft flange 36 through a main shaft bearing 34. The main shaft flange 36 is fixed on the nacelle 14. The first sensor 47, the second sensor 48, and the third sensor 46 are all fixed in the nacelle 14 by a first bracket 51.

[0028] The yaw unit 3 includes a tower barrel 17 fixed on the foundation base 1, a slewing bearing 72, a first yaw reduction motor 65, a second yaw reduction motor 68, an optoelectronic encoder 66 for recording the position and yaw speed of the nacelle 14, a rotation limit switch 69, and a yaw origin bracket 71. The upper part of the slewing bearing 72 is connected to the fixed bottom plate 25. The first yaw reduction motor 65 meshes and rotates with the slewing bearing 72 through a first yaw gear 70. The second yaw reduction motor 68 meshes and rotates with the slewing bearing 72 through a second yaw gear 74. The slewing bearing 72 drives the nacelle 14 to yaw for wind alignment. The optoelectronic encoder 66 is connected to a speed measurement gear 73 through a speed measurement coupling 67. The rotation limit switch 69 is provided with position contacts, and a position detection gear 75 is connected to its shaft. When the nacelle 14 yaws, the position detection gear 75 drives the shaft of the rotation limit switch 69 to rotate. The continuous rotation of the nacelle 14 can trigger the position contacts on the rotation limit switch 69 for twist cable extreme position feedback, which is convenient for wind turbine yaw operation and maintenance and electrical fault repair. At the same time, it occupies a small area and has a low price.

[0029] A yaw guard 29 is installed on the fixed bottom plate 25. The yaw guard 29 adopts a hexagonal frame structure, and each side is provided with transparent plexiglass 28. A yaw origin detection sensor 26 is installed on the yaw guard 29. The yaw origin detection sensor 26 locates the yaw origin by detecting the in - place information of the yaw origin bracket 71, which is convenient for students to observe, learn, and practice.

[0030] A transparent viewing window 27 and a cable adapter 18 are installed outside the tower barrel 17, and a wire splitter 77 is installed inside the tower barrel 17. The twisting condition of the cable 76 during the rotation of the nacelle 14 can be observed through the transparent viewing window 27, which is convenient for students to observe, learn and practice.

[0031] The electrical control system 13 includes a power switch 55, a PLC unit 56, a stepper driver 57, a thermal protector 58, a contactor 59, a lighting lamp 60, a switching power supply 61, an overspeed analog relay 62, an optical fiber transceiver 63, and a power adapter 64. The PLC unit 56 controls the speed change and yaw movement of the model and can communicate with other control systems through the optical fiber transceiver 63. The optical fiber transceiver 63 is powered by power conversion through the power adapter 64. The stepper driver 57 is used in cooperation with the stepper motor 40 to control the speed change of the simulated wind turbine 24. The thermal protector 58 is used for the operation protection of the yaw reduction motor. The lighting lamp 60 is used for the lighting inside the nacelle 14, which is convenient for observing the operation of the components inside the nacelle 14. The overspeed analog relay 62 collects the measurement information of the first sensor 47 and the second sensor 48 and converts it into analog quantity information corresponding to the speed and transmits it to the PLC unit 56. When the measured speed of the simulated wind turbine 24 is overspeed, a switching quantity is output.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A yaw training device for a wind turbine nacelle, characterized in that: It includes a basic base (1), a nacelle unit (2) and a yaw unit (3) provided on the basic base (1). The nacelle unit (2) includes a nacelle (14), a wind turbine drive system (12) and an electrical control system (13) provided in the nacelle (14), a wind speed sensor (31), a wind direction sensor (32) and a warning light (33) provided above the nacelle (14). The wind turbine drive system (12) includes a stepper motor (40), a speed reducer (39), a wind turbine main shaft (35), a main shaft coupling (44), a speed measurement and positioning disk (37) and a simulated wind turbine (24) mounted on the wind turbine main shaft (35), and an electric push rod (53). The stepper motor (40) is connected to the speed reducer (39), and the speed reducer (39) is connected to the wind turbine main shaft (35) through the main shaft coupling (44). The simulated wind turbine (24) and the speed measurement and positioning disk (37) rotate synchronously. A simulated blade (23) and a protective cover (11) covering the simulated blade (23) are fixed on the simulated wind turbine (24). An origin detection member (45) and a plurality of speed measurement holes (43) for speed measurement and position locking of the simulated wind turbine (24) are provided on the speed measurement and positioning disk (37). A first sensor (47), a second sensor (48) and a third sensor (46) are installed beside the speed measurement and positioning disk (37). The first sensor (47) and the second sensor (48) detect the rotation speed and direction of the simulated wind turbine (24) through the speed measurement and positioning disk (37). The origin detection member (45) performs origin positioning detection of the speed measurement and positioning disk (37) through the third sensor (46). The front part of the electric push rod (53) is connected with a positioning pin (52), and the positioning pin (52) performs positioning control of the simulated wind turbine (24) by inserting into the speed measurement hole (43) on the speed measurement and positioning disk (37).

2. The yaw training device for a wind turbine nacelle according to claim 1, wherein: The basic base (1) includes a basic bottom plate (5), universal wheels (4) provided below the basic bottom plate (5), columns (6) provided at four corners of the basic bottom plate (5), a safety light curtain sensor (7), a first emergency stop button (8) and a second emergency stop button (9) provided on the columns (6). The safety light curtain sensor (7) is used for intrusion alarm, and the first emergency stop button (8) and the second emergency stop button (9) are used for the emergency stop action of the wind turbine model.

3. The yaw training device for a wind turbine nacelle according to claim 1, wherein: A fourth sensor (49) is also installed beside the speed measurement and positioning disk (37). The fourth sensor (49) is used for detecting the extension of the positioning pin (52), and the fourth sensor (49) is fixed in the nacelle (14) by a second bracket (50).

4. The yaw training device for a wind turbine nacelle according to claim 1, characterized in that: The nacelle (14) is fixed on a fixed bottom plate (25). A first transparent observation door (10) and a second transparent observation door (16) are provided at the front and rear of the nacelle (14). The first transparent observation door (10) and the second transparent observation door (16) are both rotatably fixed on the fixed bottom plate (25) through hinges (15).

5. The yaw training device for a wind turbine nacelle according to claim 1, characterized in that: The reducer (39) is fixed on the motor fixing base (38), the motor fixing base (38) is fixed to the nacelle (14) through a connecting support (41), the wind turbine main shaft (35) is installed in the main shaft flange (36) through a main shaft bearing (34), the main shaft flange (36) is fixed on the nacelle (14), and the first sensor (47), the second sensor (48) and the third sensor (46) are all fixed in the nacelle (14) through a first bracket (51).

6. The yaw training device for a wind turbine nacelle according to claim 4, characterized in that: The yaw unit (3) includes a tower barrel (17) fixed on the foundation base (1), a slewing bearing (72), a first yaw reduction motor (65), a second yaw reduction motor (68), an optical encoder (66) for recording the position and yaw speed of the nacelle (14), a rotation limit switch (69) and a yaw origin bracket (71). The upper part of the slewing bearing (72) is connected to the fixed bottom plate (25). The first yaw reduction motor (65) meshes and rotates with the slewing bearing (72) through a first yaw gear (70). The second yaw reduction motor (68) meshes and rotates with the slewing bearing (72) through a second yaw gear (74). The slewing bearing (72) drives the nacelle (14) to yaw for wind alignment. The optical encoder (66) is connected to a speed measuring gear (73) through a speed measuring coupling (67). The rotation limit switch (69) is provided with position contacts, and a position detection gear (75) is connected to its shaft. When the nacelle (14) yaws, the position detection gear (75) drives the shaft of the rotation limit switch (69) to rotate. The continuous rotation of the nacelle (14) can trigger the position contacts on the rotation limit switch (69) to perform feedback on the extreme position of cable twisting.

7. The yaw training device for a wind turbine nacelle according to claim 6, characterized in that: A yaw guard (29) is installed on the fixed bottom plate (25). The yaw guard (29) adopts a hexagonal frame structure, and each side is provided with transparent plexiglass (28). A yaw origin detection sensor (26) is installed on the yaw guard (29). The yaw origin detection sensor (26) locates the yaw origin by detecting the in-place information of the yaw origin bracket (71).

8. The yaw training device for a wind turbine nacelle according to claim 6, characterized in that: A transparent viewing window (27) and a cable adapter (18) are installed outside the tower barrel (17). A wire splitter (77) is installed inside the tower barrel (17). The twisting condition of the cable (76) when the nacelle (14) rotates can be observed through the transparent viewing window (27).

Images