CN202768276U - Hurricane-proof wind-driven generator - Google Patents

Abstract

The utility model relates to the field of generators, in particular to a wind power generator. A hurricane-proof wind generator, the wind generator also includes a wind direction measuring device, a yaw driving motor, a controller and a wind measuring device, the wind direction measuring device and the wind measuring device are installed outside the nacelle, and the yaw driving The motor and the controller are installed in the nacelle, the input end of the controller is connected with the wind direction measuring device and the wind force measuring device, the control end of the controller is connected with the yaw driving motor, and the yaw driving motor passes between the nacelle and the tower through the transmission mechanism connected to the hinge axis. The utility model is equipped with a wind force measuring device. When the wind force measured by the wind force measuring device exceeds the upper limit that the generator can bear, the yaw driving motor will drive the nacelle to turn so that the blades are parallel to the wind direction, reducing the impact on the generator. The force ensures that the generator will not be damaged in the hurricane environment.

Description

Hurricane-proof wind turbine

technical field

The utility model relates to the field of generators, in particular to a wind power generator.

Background technique

It is a power machine that converts wind energy into mechanical work, also known as a windmill. Broadly speaking, it is a thermal energy utilization engine that uses the sun as the heat source and the atmosphere as the working medium. Wind power utilizes natural energy.

The principle of wind power generation is to use the wind to drive the blades of the windmill to rotate, and then increase the speed of rotation through the speed increaser to drive the generator to generate electricity. According to the current windmill technology, electricity can be generated at a breeze speed of about three meters per second. Wind power is becoming a craze around the world because it has no fuel issues and doesn't produce radiation or air pollution. Wind power is very popular in Finland, Denmark and other countries; my country is also vigorously promoting it in the western region.

Existing wind generators are mainly composed of nose, swivel, empennage and blades. Every part is very important, and the functions of each part are: the blades are used to receive wind force and convert it into electrical energy through the nose; the empennage makes the blades always face the direction of the wind to obtain the maximum wind energy; The function of the empennage to adjust the direction; the rotor of the nose is a permanent magnet, and the stator winding cuts the magnetic field lines to generate electric energy. It is obvious that the power generated by a wind turbine is related to the size of the wind. Usually, the greater the wind, the better the power generation efficiency. Therefore, most wind turbines are installed in areas with strong winds all year round. However, because the mechanical structure has an upper limit on the force, when the wind is too strong It may cause damage to the wind turbine, so some safety devices are needed.

Contents of the invention

The technical problem to be solved by the utility model is to provide a hurricane-proof wind power generator, the generator is equipped with a wind force measuring device, when the wind force exceeds the upper limit that the generator can withstand, the yaw drive motor will drive the cabin to turn, Make the blades parallel to the wind direction, reduce the force on the generator, and ensure that the generator will not be damaged in the hurricane environment.

The utility model is realized in the following way: a hurricane-proof wind-driven generator comprises a tower frame, a nacelle, a stator, a rotor and blades, the nacelle is installed on the tower frame through a hinged shaft, and the rotor is hinged in the nacelle. The stator is covered outside the rotor, and the stator is fixedly connected to the inner wall of the nacelle. There is a certain gap between the stator and the rotor, which is arranged coaxially. It is characterized in that: the wind generator also includes a wind direction measuring device, a yaw driving motor, a controller and a wind force measuring device, the wind direction measuring device and the wind force measuring device are installed outside the nacelle, and the yaw driving motor and the controller are installed In the nacelle, the input end of the controller is connected with the wind direction measuring device and the wind force measuring device, the control end of the controller is connected with the yaw driving motor, and the yaw driving motor is connected with the hinge shaft between the nacelle and the tower through the transmission mechanism.

The outer blade and the inner blade are an integrated structure and form a whole.

The stator includes a stator frame, a stator core and a stator winding. The stator frame is fixedly installed in the nacelle through a machine base. The stator core is an annular iron core, and the stator core is fixedly installed on the stator frame. Above, the stator winding is set on the stator core.

The rotor includes a rotor frame, a rotor yoke and permanent magnet poles, the rotor frame is fixedly installed on the rotating shaft, and the rotating shaft is hinged in the nacelle through the frame, the rotor yoke and the permanent magnet poles are ring-shaped, and the rotor magnetic The yoke is fixedly set outside the rotor frame, and the permanent magnet pole is fixedly set outside the rotor yoke.

The several blades are uniformly distributed in the circumferential direction of the hub and fixedly installed on the rotating shaft.

The wind generator also includes a wind measuring device, a yaw driving motor and a controller, the wind measuring device is installed outside the nacelle, the yaw driving motor and the controller are installed in the nacelle, the input end of the controller is connected The devices are connected, the control end of the wind measuring device is connected with the yaw drive motor, and the yaw drive motor is connected with the hinge shaft between the nacelle and the tower through the transmission mechanism.

The hurricane-proof wind power generator of the utility model is equipped with a wind force measuring device. When the wind force measured by the wind force measuring device exceeds the upper limit that the generator can withstand, the yaw driving motor will drive the nacelle to turn so that the blades are parallel to the wind direction. , to reduce the force on the generator and ensure that the generator will not be damaged in the hurricane environment.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model hurricane-resistant wind power generator.

In the figure: 1 tower, 2 engine room, 31 stator frame, 32 stator core, 33 stator winding, 41 rotor frame, 42 rotor yoke, 43 permanent magnetic pole, 5 blades, 6 rotating shaft, 7 base, 8 hub , 9 wind direction measuring device, 10 yaw drive motor, 11 controller, 12 wind force measuring device.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Example 1

As shown in Figure 1, a kind of anti-hurricane wind generator comprises tower 1, nacelle 2, stator, rotor and blade 5, and described nacelle 2 is installed on tower 1 by hinge shaft, and described rotor is hinged on nacelle Inside, the stator cover is outside the rotor, the stator is fixedly connected to the inner wall of the nacelle 2, and there is a certain gap between the stator and the rotor. Fixedly installed on the rotating shaft 6, the wind generator also includes a wind direction measuring device 9, a yaw driving motor 10, a controller 11 and a wind measuring device 12, and the wind direction measuring device 9 and the wind measuring device 12 are installed outside the nacelle 2, The yaw driving motor 10 and the controller 11 are installed in the nacelle 2, the input end of the controller 11 is connected with the wind direction measuring device 9 and the wind force measuring device 12, the control end of the controller 11 is connected with the yaw driving motor 10, and the yaw driving motor 10 is connected to each other. The aviation drive motor 10 is connected with the hinge shaft between the nacelle 2 and the tower 1 through a transmission mechanism.

In this embodiment, in order to ensure the structural strength of the blade 5 as a whole, the outer blade 51 and the inner blade 52 are integrated and formed as a whole.

The utility model can be further described as, the stator includes a stator frame 31, a stator core 32 and a stator winding 33, and the stator frame 31 is fixedly installed in the nacelle 2 through the frame 7, and the stator core 32 is an annular iron core, the stator iron core 32 is fixedly installed on the stator frame 31 , and the stator winding 33 is embedded on the stator iron core 32 .

The utility model can be further described as, the rotor includes a rotor frame 41, a rotor yoke 42 and a permanent magnet pole 43, the rotor frame 41 is fixedly mounted on the rotating shaft 6, and the rotating shaft 6 is hinged to the nacelle 2 through the frame 7 Inside, the rotor yoke 42 and the permanent magnet pole 43 are ring-shaped, the rotor yoke 42 is fixedly set outside the rotor frame 41 , and the permanent magnet pole 43 is fixedly set outside the rotor yoke 42 .

In this embodiment, in order to securely install the blades 5 on the rotating shaft 6 and facilitate disassembly and maintenance, the plurality of blades 5 are uniformly distributed and fixed on the rotating shaft 6 through the hub 8 in the circumferential direction.

Claims (4)

1. anti-hurricane shape wind-driven generator, comprise pylon (1), cabin (2), stator, rotor and blade (5), described cabin (2) is installed on the pylon (1) by hinging shaft, described rotor is hinged in the cabin, described stator case is outside rotor, stator and cabin (2) inwall is fixedly linked, between stator and the rotor the coaxial setting of certain interval is arranged, rotating shaft (6) fixedly is equipped with at the place, axle center of rotor, total several circumferential uniform being fixedly mounted in the rotating shaft (6) of described blade (5), it is characterized in that: this wind-driven generator also comprises direction measuring apparatus (9), driftage drive motor (10), controller (11) and wind-force measuring device (12), described direction measuring apparatus (9) and wind-force measuring device (12) are installed in outside the cabin (2), described driftage drive motor (10) and controller (11) are installed in the cabin (2), the input end of controller (11) links to each other with wind-force measuring device (12) with direction measuring apparatus (9), the control end of controller (11) links to each other with driftage drive motor (10), and the drive motor (10) of going off course links to each other with hinging shaft between cabin (2) and the pylon (1) by driving mechanism.

2. anti-hurricane shape wind-driven generator as claimed in claim 1, it is characterized in that: described stator comprises stator frame (31), stator iron core (32) and staor winding (33), described stator frame (31) is fixedly mounted in the cabin (2) by support (7), described stator iron core (32) is annular core, stator iron core (32) is fixedly mounted on the stator frame (31), and described staor winding (33) is set on the stator iron core (32).

3. anti-hurricane shape wind-driven generator as claimed in claim 1, it is characterized in that: described rotor comprises rotor frame (41), rotor rim (42) and permanent-magnet pole (43), described rotor frame (41) is fixedly mounted in the rotating shaft (6), rotating shaft (6) is hinged in the cabin (2) by support (7), described rotor rim (42) and permanent-magnet pole (43) all are annular, rotor rim (42) is fixedly set in outside the rotor frame (41), and permanent-magnet pole (43) is fixedly set in outside the rotor rim (42).

4. anti-hurricane shape wind-driven generator as claimed in claim 1 is characterized in that: described several blades (5) are by circumferential uniform being fixedly mounted in the rotating shaft (6) of wheel hub (8).

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