Comprehensive wind power generation teaching practical training device

Abstract

The utility model relates to a comprehensive wind power generation teaching practical training device. The technical problem to be solved by the utility model is to provide a comprehensive wind power generation teaching practical training device. According to the technical scheme, the wind turbine model comprises a wind turbine model, a wind source simulation device, an electrical control cabinet and a foundation base, and the wind turbine model comprises a cabin, a wind wheel transmission system, a cabin electrical control system, a yaw transmission system, a wind speed sensor, a wind direction sensor and a warning lamp. The wind source simulation device comprises a fixed arm, a rotating arm, a first fan and a second fan, wherein the first fan and the second fan are fixed at the end part of the rotating arm through a fan fixing frame. The wind turbine model has the advantages that by adopting a reduced structural model of the wind turbine, the speed change and yaw actions of a wind wheel of the wind turbine can be clearly displayed, and the model structure is highly similar to a real wind turbine; 2, the practicability is high; and 3, the comprehensive performance is high, the comprehensive skill training of the wind turbine can be met, and the practical examination of related skills of the wind turbine can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, in particular to a comprehensive wind power generation teaching and training device. Background Art

[0002] In recent years, with the rapid development of the wind power industry, the installed capacity of wind power generation has continued to increase, and the demand for skilled personnel in the installation, commissioning, operation, maintenance and management of wind power generation equipment has continued to increase. The skill requirements of related practitioners have continued to increase, and a wind power generation training and assessment equipment with high simulation and strong functionality is needed for skill training and practical assessment to achieve the purpose of training and selecting wind power talents. At present, wind power generation related teaching equipment focuses on principle demonstration, with relatively simple functions, and has a certain gap with the basic structure and action process of real wind turbines. It is difficult to meet the requirements of wind power skill training and skill assessment such as wind turbine action principle demonstration, wind turbine operation and maintenance, wind power equipment maintenance and troubleshooting. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a comprehensive wind power generation teaching and training device.

[0004] The technical solution adopted by the utility model comprehensive wind power generation teaching and training device: It is characterized by comprising a wind turbine model, a wind source simulation device, an electrical control cabinet and a basic base. The wind turbine model comprises a cabin, a wind wheel transmission system and a cabin electrical control system arranged in the cabin, a yaw transmission system arranged below the cabin, a wind speed sensor, a wind direction sensor and a warning light arranged above the cabin. The wind source simulation device comprises a fixed arm fixed to the side of the electrical control cabinet through a fixed arm bracket, a rotating arm connected to the end of the fixed arm through a rotating arm drive device, and a first fan and a second fan fixed to the end of the rotating arm through a fan fixing bracket. The wind speed sensor is used for collecting the wind speed of the first fan and the second fan, and the wind direction sensor is used for collecting the wind direction of the first fan and the second fan.

[0005] The wind wheel transmission system includes a first stepper motor, a reducer, a wind wheel main shaft, a first coupling, a speed measuring positioning disk, a simulated wind wheel and an electric push rod, the first stepper motor is connected to the reducer, the reducer is connected to the wind wheel main shaft through the first coupling, the wind wheel main shaft is provided with a simulated wind wheel and a speed measuring positioning disk that rotates synchronously with the simulated wind wheel, the simulated wind wheel is provided with simulated blades and a shield, the speed measuring positioning disk is provided with a speed measuring hole and an origin detection member, a first sensor and a second sensor for measuring the rotation speed of the simulated wind wheel, a third sensor and a fourth sensor for origin positioning detection corresponding to the origin detection member are installed next to the speed measuring positioning disk, a positioning pin corresponding to the speed measuring hole is installed at the front end of the electric push rod, the positioning pin is used for positioning control of the simulated wind wheel and the extension of the positioning pin is detected by the fourth sensor.

[0006] The reducer is fixed on the motor fixing seat, the motor fixing seat and the nacelle are fixed via a connecting support, the wind wheel main shaft is installed in the main shaft flange via a main shaft bearing support, and the main shaft flange is fixed on the nacelle.

[0007] The rotating arm driving device is connected to the rotating shaft by a second stepper motor through a second coupling, the rotating shaft is provided with an electric slip ring, the end of the rotating shaft is connected and fixed to the rotating arm by a fastening bolt, the rotating shaft is installed in the rotating arm flange through a rotating shaft bearing, the rotating arm flange is fixed on the rotating drive cover, the rotating arm is driven by the second stepper motor to rotate 360 ​​degrees, the second coupling is provided with a detection piece, and the wind source origin is located by a wind source origin sensor arranged corresponding to the detection piece, and a second transparent visual window is provided at the outer end of the rotating drive cover.

[0008] The yaw transmission system includes a tower, a slewing bearing, a first yaw reduction motor, a second yaw reduction motor, a photoelectric encoder, a rotation limit switch and a yaw origin bracket. The lower part of the tower is fixed on the basic base, and a slewing bearing is installed on the upper part of the tower. The upper part of the slewing bearing is connected to the bottom of the cabin. The first yaw reduction motor is connected to a first yaw gear, and the second yaw reduction motor is connected to a second yaw gear. The first yaw gear and the second yaw gear are respectively meshed and rotated with the slewing bearing to drive the cabin to yaw against the wind. The photoelectric encoder is connected to the speed measuring gear through a speed measuring coupling. The rotation limit switch is provided with a position contact, and a position detection gear is connected to its shaft.

[0009] The slewing bearing outer cover is provided with a yaw shield, which adopts a hexagonal frame structure and has transparent plexiglass on each side. The yaw shield is also provided with a yaw origin detection sensor, which locates the yaw origin by detecting the in-place information of the yaw origin bracket. The outside of the tower is provided with a first transparent visual window, and the inside of the tower is provided with a splitter, through which the twisting of the cable when the cabin rotates can be observed.

[0010] The bottom of the basic base is equipped with universal wheels, and non-slip footstools are placed in front and behind it. Profile columns are installed at the four corners of the basic base. Safety light curtain sensors for misentry alarm are provided on the profile columns. An emergency stop button is also provided on the top of the profile column for emergency shutdown.

[0011] The advantages of the utility model comprehensive wind power generation teaching and training device are: 1. It adopts the structural modeling of a reduced version of the wind turbine, which can clearly display the speed change and yaw action of the wind turbine rotor. The model structure is highly similar to the real wind turbine, and can display corresponding functions such as overspeed alarm, simulated wind rotor locking, and twisted cable limit protection; 2. It contains typical mechanisms and action control processes of wind turbines, which is convenient for the operation and maintenance of wind turbine speed change and yaw operation and electrical fault inspection and repair. At the same time, it has the characteristics of small footprint and economical price, and has strong practicality; 3. It integrates wind turbine rotor speed control, cabin yaw and unwinding control, simulated wind source control, wind turbine operation data monitoring, safety chain control, uninterruptible power supply control, electrical control cabinet temperature control and other functions. It is highly comprehensive and can meet the comprehensive skill training of wind turbines, as well as the practical assessment of wind turbine-related skills, which is convenient for students to learn. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a front structural schematic diagram of the utility model comprehensive wind power generation teaching and training device;

[0014] Figure 2 It is a schematic diagram of the internal structure of the wind turbine model of the utility model;

[0015] Figure 3 It is a schematic diagram of the external structure of the wind turbine model of the utility model;

[0016] Figure 4 It is a cross-sectional view of the wind wheel transmission system of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the wind wheel transmission system of the utility model;

[0018] Figure 6It is a schematic diagram of the internal back structure of the cabin electrical control system of the utility model;

[0019] Figure 7 It is a schematic diagram of the internal structure of the cabin of the utility model;

[0020] Figure 8 It is another structural schematic diagram of the wind turbine model of the utility model;

[0021] Fig. 9 It is a structural schematic diagram of the wind source simulation device of the utility model;

[0022] Fig.10 It is a partial cross-sectional view of the rotary arm driving device of the utility model;

[0023] Fig.11 It is a schematic diagram of the internal structure of the electrical control cabinet of the utility model;

[0024] Fig.12 It is a schematic diagram of the back structure of the utility model wind power generation teaching and training device. DETAILED DESCRIPTION

[0025] like Figure 1-12 As shown, the utility model involves a comprehensive wind power generation teaching and training device, including a wind turbine model 1, a wind source simulation device 2, an electrical control cabinet 3 and a basic base 4, the wind turbine model 1 includes a nacelle 9, a wind wheel transmission system 6 and a nacelle electrical control system 7 arranged in the nacelle 9, a yaw transmission system 8 arranged below the nacelle 9, a wind speed sensor 20, a wind direction sensor 21 and a warning light 22 arranged above the nacelle 9, the wind source simulation device 2 includes a fixed arm 72 fixed to the side of the electrical control cabinet 3 through a fixed arm bracket 71, a rotating arm 75 connected to the end of the fixed arm 72 through a rotating arm driving device 73, a first fan 76 and a second fan 77 fixed to the end of the rotating arm 75 through a fan fixing frame 78, the wind speed sensor 20 is used for collecting the wind speed of the first fan 76 and the second fan 77, and the wind direction sensor 21 is used for collecting the wind direction of the first fan 76 and the second fan 77.

[0026] The wind wheel transmission system 6 includes a first stepper motor 35, a reducer 34, a wind wheel main shaft 30, a first coupling 39, a speed measuring positioning disk 32, a simulated wind wheel 28 and an electric push rod 46. The first stepper motor 35 is connected to the reducer 34, and the reducer 34 is connected to the wind wheel main shaft 30 through the first coupling 39. The wind wheel main shaft 30 is provided with a simulated wind wheel 28 and a speed measuring positioning disk 32 that rotates synchronously with the simulated wind wheel 28. The simulated wind wheel 28 is equipped with simulated blades 19 and a shield 5. The speed measuring positioning disk 32 is provided with a speed measuring hole 38 and an origin detection member 40. The first sensor 42 and The second sensor 43, the third sensor 41 and the fourth sensor 44 used for origin positioning detection relative to the origin detection member 40, the front end of the electric push rod 46 is equipped with a positioning pin 45 corresponding to the speed measuring hole 38, the positioning pin 45 is used for positioning control of the simulated wind wheel 28 and the extension detection of the positioning pin 45 is performed by the fourth sensor 44, the reducer 34 is fixed on the motor fixing seat 33, the motor fixing seat 33 and the nacelle 9 are fixed by the connecting support 36, the wind wheel main shaft 30 is supported and installed in the main shaft flange 31 through the main shaft bearing 29, and the main shaft flange 31 is fixed on the nacelle 9 to ensure that the rotation of the simulated wind wheel 28 is more stable and accurate. The positioning and speed measurement of the simulated wind wheel are more accurate, which helps to improve the reliability of the experimental data.

[0027] The cabin electrical control system 7 includes a first power switch 48, a cabin PLC 49, a first stepper driver 52, a first thermal protector 51, a first contactor 50, a first lighting lamp 53, a first switch power supply 54, an overspeed simulation relay 55, a first optical fiber transceiver 56 and a first power adapter 62. The cabin PLC 49 controls the speed change and yaw action of the model. The first stepper driver 52 is used in conjunction with the first stepper motor 35 to control the speed change of the simulated wind wheel 28. The first thermal protector 51 is used for the operation protection of the yaw reduction motor. The first lighting lamp 5 3 is used for lighting inside the cabin 9, which is convenient for observing the operation of components inside the cabin 9. The overspeed simulation relay 55 collects the measurement information of the first sensor 42 and the second sensor 43, and converts it into analog information corresponding to the speed and transmits it to the cabin PLC49. When the speed of the simulated wind wheel 28 is measured to be overspeed, there is a switch output. The wind speed information collected by the wind speed sensor 20 controls the speed of the simulated wind wheel 28 through the cabin PLC49, and the wind direction information collected by the wind direction sensor 21 is used by the cabin PLC49 to control the yaw of the cabin 9 to the wind.

[0028] The rotating arm driving device 73 is connected to the rotating shaft 84 by the second stepper motor 79 through the second coupling 80. The rotating shaft 84 is provided with an electric slip ring 85. The end of the rotating shaft 84 is connected and fixed to the rotating arm 75 by a fastening bolt 88. The rotating shaft 84 is supported and installed in the rotating arm flange 83 through a rotating shaft bearing 86. The rotating arm flange 83 is fixed on the rotating drive cover 87. The rotating arm 75 is driven by the second stepper motor 79 to rotate 360 ​​degrees. The second coupling 80 has a detection piece 81, and the wind source origin is located by a wind source origin sensor 82 arranged corresponding to the detection piece 81. The outer end of the rotating drive cover 87 is provided with a second transparent visual window 74, which enhances the flexibility of the wind source simulation device 2.

[0029] The yaw transmission system 8 includes a tower 10, a slewing bearing 65, a first yaw reduction motor 57, a second yaw reduction motor 60, a photoelectric encoder 58, a rotation limit switch 61 and a yaw origin bracket 64. The lower part of the tower 10 is fixed on the basic base 4, and a slewing bearing 65 is installed on the upper part thereof. The upper part of the slewing bearing 65 is connected to the bottom of the nacelle 9. The first yaw reduction motor 57 is connected to the first yaw gear 63, and the second yaw reduction motor 60 is connected to the second yaw gear 67. The first yaw gear 63 and the second yaw gear 67 are respectively engaged and rotated with the slewing bearing 65 to drive the nacelle 9 to yaw and perform wind-facing action. The photoelectric encoder 58 is connected to the speed measuring gear 66 through the speed measuring coupling 59. The rotation limit switch 61 is provided with a position contact, and a position detection gear 68 is connected to its shaft.

[0030] The outer cover of the slewing bearing 65 is provided with a yaw shield 24, and the yaw shield 24 adopts a hexagonal frame structure, with transparent organic glass 25 on each side. The yaw shield 24 is also provided with a yaw origin detection sensor 27, which locates the yaw origin by detecting the in-place information of the yaw origin bracket 64. The tower 10 is provided with a first transparent visual window 26 on the outside, and a splitter 69 is provided inside the tower 10. The twisting of the cable 70 when the cabin 9 rotates can be observed through the first transparent visual window 26, so that the operator can observe the operating status inside the equipment in real time, which is convenient for students to learn and practice intuitively.

[0031] The bottom of the basic base 4 is equipped with universal wheels 114, and non-slip footstools 118 are placed in front and behind it. Profile columns 119 are installed at the four corners of the basic base 4. The profile columns 119 are provided with safety light curtain sensors 117 for misentry alarm. The top of the profile column 119 is also provided with an emergency stop button 120 for emergency shutdown, which increases the mobility and stability of the equipment, facilitates the layout and adjustment in the laboratory, and enhances safety.

[0032] The electrical control cabinet 3 is installed on the basic base 4, with profile columns 89 around it, an electrical component installation plate 97 in the front, and the interior of the control cabinet is separated by an upper partition 111. The electrical control cabinet has an upper cabinet door 107 and a lower cabinet door 112 at the back, and two operating indicator lights 106 on the top. Wherein: the electrical component installation board 97 is installed with a power switch 90, a button 91, a main control PLC 92, a second optical fiber transceiver 93, a contactor 94, an intermediate relay 95, a power inverter 96, a touch screen 98, two safety relays 99, a DC speed regulator 100, a fire safety emergency module 101, two temperature relays 102, a second stepper driver 103, and a frequency converter 105. A battery 113 and an uninterruptible power supply 115 are installed inside the electrical control cabinet 3. The touch screen 98 can control the operation and data monitoring of the wind turbine by communicating with the main control PLC 92. The main control PLC 92 collects and outputs the control signal of the wind turbine. It can communicate with the cabin PLC 49 through the connection between the second optical fiber transceiver 93 and the first optical fiber transceiver 56. The safety relay 99 can control the operation of the wind turbine. Safety chain control during operation, the output of the frequency converter 105 is filtered by the filter 104, the DC speed regulator 100 controls the rotation speed of the first fan 76 and the second fan 77 to control the wind speed, the second stepper driver 103 controls the action position of the second stepper motor 79 to perform analog control of the wind direction, the battery 113 and the fire safety emergency module 101 are used together as a DC 24V power backup, the power inverter 96 can invert the DC power output by the fire safety emergency module 101 into AC 220V as backup power for the uninterruptible power supply 115, a cooling fan 108 is installed on the right side of the electrical control cabinet 3, and a heater 109 is installed on the upper partition 111 inside the electrical control cabinet, which can be combined with the temperature relay 102 and the temperature mechanical switch 110 to control the temperature of the electrical control cabinet 3.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A comprehensive wind power generation teaching and training device, characterized by: The invention comprises a wind turbine model (1), a wind source simulation device (2), an electrical control cabinet (3) and a base (4), wherein the wind turbine model (1) comprises a nacelle (9), a wind wheel transmission system (6) and a nacelle electrical control system (7) arranged in the nacelle (9), a yaw transmission system (8) arranged below the nacelle (9), a wind speed sensor (20), a wind direction sensor (21) and a warning light (22) arranged above the nacelle (9), and the wind source simulation device (2) comprises a wind turbine model (1), a wind turbine model (1) and a base (4), wherein the wind turbine model (1 ...) and a wind turbine model (1) fixed to the nacelle (9) by a fixed arm bracket (71) A fixed arm (72) on the side of the electrical control cabinet (3), a rotating arm (75) connected to the end of the fixed arm (72) via a rotating arm driving device (73), a first fan (76) and a second fan (77) fixed to the end of the rotating arm (75) via a fan fixing frame (78), the wind speed sensor (20) being used to collect wind speeds of the first fan (76) and the second fan (77), and the wind direction sensor (21) being used to collect wind directions of the first fan (76) and the second fan (77).

2. The comprehensive wind power generation teaching and training device according to claim 1 is characterized in that: The wind wheel transmission system (6) comprises a first stepper motor (35), a speed reducer (34), a wind wheel main shaft (30), a first coupling (39), a speed measuring positioning disk (32), a simulated wind wheel (28), and an electric push rod (46); the first stepper motor (35) is connected to the speed reducer (34); the speed reducer (34) is connected to the wind wheel main shaft (30) via the first coupling (39); the wind wheel main shaft (30) is provided with a simulated wind wheel (28) and a speed measuring positioning disk (32) that rotates synchronously with the simulated wind wheel (28); the simulated wind wheel (28) is provided with simulated blades (19) and a shield (5); the speed measuring positioning disk (32) is connected to the simulated wind wheel (28) via the first coupling (39); A speed measuring hole (38) and an origin detection member (40) are provided on the speed positioning plate (32); a first sensor (42) and a second sensor (43) for measuring the rotation speed of the simulated wind wheel (28), and a third sensor (41) and a fourth sensor (44) for origin positioning detection corresponding to the origin detection member (40) are installed next to the speed measuring positioning plate (32); a positioning pin (45) corresponding to the speed measuring hole (38) is installed at the front end of the electric push rod (46); the positioning pin (45) is used for positioning control of the simulated wind wheel (28), and the extension detection of the positioning pin (45) is performed through the fourth sensor (44).

3. The comprehensive wind power generation teaching and training device according to claim 2 is characterized in that: The reducer (34) is fixed on the motor fixing seat (33), the motor fixing seat (33) and the nacelle (9) are fixed via a connecting support (36), the wind wheel main shaft (30) is supported and installed in the main shaft flange (31) via a main shaft bearing (29), and the main shaft flange (31) is fixed on the nacelle (9).

4. The comprehensive wind power generation teaching and training device according to claim 1 is characterized in that: The rotating arm driving device (73) is connected to a rotating shaft (84) by a second stepping motor (79) through a second coupling (80); an electric slip ring (85) is provided on the rotating shaft (84); an end of the rotating shaft (84) is connected and fixed to the rotating arm (75) through a fastening bolt (88); the rotating shaft (84) is supported and installed in a rotating arm flange (83) through a rotating shaft bearing (86); the rotating arm flange (83) is fixed to a rotating drive housing (87); the rotating arm (75) is driven by the second stepping motor (79) to rotate 360 ​​degrees; the second coupling (80) is provided with a detection sheet (81); a wind source origin sensor (82) provided corresponding to the detection sheet (81) is used to locate the wind source origin; and a second transparent visual window (74) is provided at an outer end of the rotating drive housing (87).

5. The comprehensive wind power generation teaching and training device according to claim 1 is characterized in that: The yaw transmission system (8) comprises a tower (10), a slewing bearing (65), a first yaw reduction motor (57), a second yaw reduction motor (60), a photoelectric encoder (58), a rotation limit switch (61) and a yaw origin bracket (64), wherein the lower portion of the tower (10) is fixed to the base base (4), and the upper portion thereof is provided with a slewing bearing (65), the upper portion of the slewing bearing (65) is connected to the bottom of the nacelle (9), and the first yaw reduction motor (57) is connected to a The first yaw gear (63) and the second yaw reduction motor (60) are connected to a second yaw gear (67). The first yaw gear (63) and the second yaw gear (67) are respectively meshed and rotated with the slewing bearing (65) to drive the nacelle (9) to yaw and perform wind-facing movements. The photoelectric encoder (58) is connected to the speed measuring gear (66) via a speed measuring coupling (59). The rotary limit switch (61) is provided with a position contact, and a position detection gear (68) is connected to its shaft.

6. The comprehensive wind power generation teaching and training device according to claim 5 is characterized by: The outer cover of the slewing bearing (65) is provided with a yaw shield (24), the yaw shield (24) adopts a hexagonal frame structure, and each side has transparent organic glass (25). The yaw shield (24) is also provided with a yaw origin detection sensor (27), and the yaw origin is located by detecting the position information of the yaw origin bracket (64). The tower (10) is provided with a first transparent visual window (26) on the outside, and a splitter (69) is provided inside the tower (10), and the twisting of the cable (70) when the cabin (9) rotates can be observed through the first transparent visual window (26).

7. The comprehensive wind power generation teaching and training device according to claim 1 is characterized in that: The bottom of the base (4) is provided with universal wheels (114), and anti-slip footrests (118) are placed in front and behind the base. Profile columns (119) are installed at the four corners of the base (4). Safety light curtain sensors (117) for misentry alarm are provided on the profile columns (119), and an emergency stop button (120) for emergency shutdown is also provided at the top of the profile column (119).

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