CN207229300U - High-power wind power generation system - Google Patents

Abstract

The utility model belongs to the technical field of wind power generation, and in particular relates to a high-power wind power generation system. The other end of the low-speed rotating shaft passes through the front rotating shaft through slot and the rear rotating shaft through slot in turn and is located in the rear engine room. The front rotating shaft through slot 1. A sealing sleeve is provided in the through groove of the rear rotating shaft, and the sealing sleeve is set on the outside of the low-speed rotating shaft. The outer surface of the low-speed rotating shaft is provided with a rotor bracket, and the rotor bracket is connected with a rotor. , the top of the stator is connected with an upper mount, the other end of the upper mount is fixed on the top of the rear cabin, the bottom of the stator is connected with a lower mount, and the other end of the lower mount is fixed in the rear cabin In the inner bottom, the other end of the low-speed shaft is connected to a gearbox, the other side of the gearbox is connected to a high-speed shaft, the high-speed shaft is provided with a brake, the other end of the high-speed shaft is connected to a generator, and the gear There is a cooling device between the box and the generator.

Description

High-power wind power generation system

technical field

The utility model belongs to the technical field of wind power generation, in particular to a high-power wind power generation system.

Background technique

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, power generation can be started at a breeze speed (the degree of breeze) 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, and my country is also vigorously promoting it in the western region. The small wind power generation system is very efficient, but it is not only composed of a generator head, but a small system with certain technological content, wind generator + charger + digital inverter. The wind turbine consists of the nose, the rotor, the tail, and the blades. Each part is very important. The functions of each part are that the blades are used to receive the wind and convert it into electrical energy through the nose, and the tail keeps the blades facing the direction of the wind so that To get the maximum wind energy, the swivel can make the nose rotate flexibly to realize the function of adjusting the direction of the empennage. The rotor of the nose is a permanent magnet, and the stator winding cuts the magnetic field lines to generate electric energy.

Because of the unstable wind volume, the wind turbine outputs alternating current of 13-25V, which must be rectified by the charger, and then the storage battery is charged, so that the electrical energy generated by the wind turbine turns into chemical energy. Then use an inverter power supply with a protection circuit to convert the chemical energy in the battery into AC 220V mains power to ensure stable use.

A wind turbine is a device that converts wind energy into electrical energy, and is mainly composed of blades, generators, mechanical components and electrical components. According to the different rotation axes, wind turbines are mainly divided into two types: horizontal axis wind turbines and vertical axis wind turbines. At present, horizontal axis wind turbines occupy the mainstream position in the market.

Since the rotor in the wind turbine rotates, it is easy to drive the stator to rotate together, so the position of the stator needs to be fixed. At present, the general method is to fix the stator on the gearbox. Since the gearbox itself is also suspended in the inner compartment, Therefore, the bearing capacity is limited. After fixing the stator to the gearbox, it is easy to cause damage to the gearbox.

Contents of the invention

The utility model provides a high-power wind power generation system to solve the problem of unreasonable stator fixing structure proposed in the above-mentioned background technology.

The technical problem solved by the utility model adopts the following technical solutions to realize:

A high-power wind power generation system includes a wind generator, the wind generator includes a base, a tower is arranged above the base, a yaw device is arranged on the top of the tower, and a yaw device is arranged above the yaw device. There is a rear cabin, one side of the rear cabin is provided with a front cabin, the front cabin is provided with blades, the outer surface of the front cabin is provided with a blade through groove, one end of the blade passes through the blade through groove, and the other end is connected to a A wheel hub, one side of the wheel hub is connected with a low-speed shaft, one side of the front nacelle is provided with a front shaft through slot, and the opposite side of the rear nacelle is provided with a rear shaft through slot, and the other end of the low-speed shaft passes through the Pass through the front shaft through groove and the rear shaft through groove and be located in the rear nacelle, the front shaft through groove and the rear shaft through groove are provided with sealing sleeves, and the sealing sleeve is sleeved on the outside of the low-speed rotating shaft, and the low-speed rotating shaft The outer surface is provided with a rotor bracket, the rotor bracket is connected with the rotor, the rotor is provided with a stator outside, the top of the stator is connected with an upper fixing frame, and the other end of the upper fixing frame is fixed on the top of the rear nacelle. The bottom of the stator is connected with a lower fixing frame, the other end of the lower fixing frame is fixed at the bottom of the rear nacelle, the other end of the low-speed rotating shaft is connected with a gear box, and the other side of the gear box is connected with a high-speed rotating shaft. A brake is provided on the high-speed rotating shaft, a generator is connected to the other end of the high-speed rotating shaft, and a cooling device is provided between the gear box and the generator.

It also includes a frequency converter, a control device, a protection device, and a transformer. The wind power generator is connected to the frequency converter, and the other end of the frequency converter is connected to the control device, protection device, and transformer at the same time, and the transformer is connected to the grid.

An anemometer is also arranged on the top of the rear cabin.

The beneficial effects of the utility model are:

1. In this technical solution, the stator is fixed on the inner wall of the rear nacelle through a fixing frame, which can not only fix the stator, but also avoid damage to the gear box. The structure design is reasonable and the implementation effect is very ideal.

2 The setting of the sealing sleeve can realize the effective sealing of the front engine room and the rear engine room, and at the same time can protect the rotating shaft from wear.

3. The wind power generation system disclosed in this technical solution can be applied to high-power wind power generation. Since wind energy is used as a power source, energy can be effectively saved and energy can be recycled, and it can be popularized and used on a large scale.

4 The cooling device is mainly used to ensure that the temperature in the rear engine room will not be too high, so as to ensure the normal use of the equipment.

5 The function of the yaw device can adjust the direction of the blade according to the wind direction and wind force, so as to maximize the energy conversion efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural block diagram of the utility model;

In the figure: 1-base, 2-tower, 3-yaw device, 4-blade, 5-blade slot, 6-hub, 7-front shaft slot, 8-rear shaft slot, 9-low speed Shaft, 10-seal sleeve, 11-rotor bracket, 12-rotor, 13-stator, 14-upper fixed frame, 15-lower fixed frame, 16-gearbox, 17-high-speed shaft, 18-brake, 19-cooling Device, 20-generator, 21-wind gauge, 22-front engine room, 23-rear engine room.

Detailed ways

A high-power wind power generation system, including a wind generator, the wind generator includes a base 1, a tower 2 is arranged above the base 1, a yaw device 3 is arranged on the top of the tower 2, and a rear end is arranged above the yaw device 3. Nacelle 23, rear nacelle 23 side is provided with front nacelle 22, and front nacelle 22 is provided with blade 4, and the outer surface of front nacelle 22 is provided with blade through groove 5, and one end of blade 4 passes through blade through groove 5, and the other end is connected with wheel hub 6. One side of the hub 6 is connected with a low-speed rotating shaft 9, the side of the front nacelle 22 is provided with a front shaft through-slot 7, and the opposite side of the rear nacelle 23 is provided with a rear shaft through-slot 8, and the other end of the low-speed rotating shaft 9 passes through in sequence The front rotating shaft through groove 7 and the rear rotating shaft through groove 8 are located in the rear nacelle 23, the front rotating shaft through groove 7 and the rear rotating shaft through groove 8 are provided with a sealing sleeve 10, and the sealing sleeve sleeve 10 is outside the low speed rotating shaft 9. The outer surface of the rotating shaft 9 is provided with a rotor bracket 11, the rotor bracket 11 is connected with the rotor 12, the rotor 12 is provided with a stator 13, the top of the stator 13 is connected with an upper mount 14, and the other end of the upper mount 14 is fixed in the rear nacelle 23 The top and the bottom of the stator 13 are connected with a lower fixed frame 15, the other end of the lower fixed frame 15 is fixed at the bottom of the rear nacelle 23, the other end of the low-speed rotating shaft 9 is connected with a gear box 16, and the other side of the gear box 16 is connected with a high-speed rotating shaft 17, the high-speed rotating shaft 17 is provided with a brake 18, the other end of the high-speed rotating shaft 17 is connected with a generator 20, a cooling device 19 is provided between the gear box 16 and the generator 20, and the top of the rear nacelle 23 is provided with an anemometer 21.

It also includes a frequency converter, a control device, a protection device, and a transformer. The wind power generator is connected to the frequency converter, and the other end of the frequency converter is connected to the control device, protection device, and transformer at the same time, and the transformer is connected to the power grid.

The embodiments of the present utility model have been described in detail above, but the content is only the preferred embodiment of the present utility model, and cannot be considered as limiting the scope of implementation of the present utility model, and all equality made according to the application scope of the present utility model Changes and improvements, etc., should still belong to the scope of patent coverage of the present utility model.

Claims (3)

1. A kind of 1. high-power wind power generation system, it is characterised in that：Including wind-driven generator, the wind-driven generator includes base Seat, the pedestal top are equipped with pylon, and the pylon top is equipped with yaw device, rear cabin is equipped with above the yaw device, Cabin side is equipped with forward engine room after described, is equipped with blade in the forward engine room, the forward engine room outer surface is equipped with blade straight slot, institute State blade one end and pass through blade straight slot, the other end is connected with wheel hub, and the side of the wheel hub is connected with low speed shaft, the preceding machine Cabin side is equipped with front rotary shaft straight slot, and the opposite side of the rear cabin is equipped with rear shaft straight slot, the other end of the low speed shaft Sequentially pass through front rotary shaft straight slot, rear shaft straight slot and be equipped with rear cabin, in the front rotary shaft straight slot, rear shaft straight slot close Big envelope cylinder, the seal sleeve are sleeved on the outside of low speed shaft, and the low speed shaft outer surface is equipped with rotor field spider, the rotor Stent is connected with rotor, is equipped with stator outside the rotor, upper holder, fixed frame are connected with the top of the stator The other end be fixed on rear cabin inner top, the bottom of the stator is connected with lower fixed frame, the other end of the lower fixed frame Bottom in rear cabin is fixed on, the other end of the low speed shaft is connected with gear-box, and the gear-box opposite side is connected with height Fast shaft, the high speed rotating shaft are equipped with brake, and the high speed rotating shaft other end is connected with generator, the gear-box, power generation Cooling device is equipped between machine.
2. A kind of 2. high-power wind power generation system according to claim 1, it is characterised in that：Further include frequency converter, control Device, protective device, transformer, the wind-driven generator are connected with frequency converter, and the frequency converter other end is filled with control at the same time Put, the connection of protective device, transformer, the transformer is connected with power grid.
3. A kind of 3. high-power wind power generation system according to claim 2, it is characterised in that：The top of the rear cabin is also Equipped with anemometer.