CN201250765Y - Assembly type wind generating set - Google Patents

Abstract

The utility model belongs to the field of wind power engines, in particular to a high-power integrated wind power generating set. It includes a wind turbine unit and a rotatable tower composed of a wind wheel, a generator, and a nacelle. It is characterized in that more than two wind generator units are fixed on the rotatable tower through a support frame to form a symmetrical structure; The generator unit is directly arranged on the top of the rotatable tower, and the remaining wind power generator units are arranged at the end of the support frame; the support frame can be arranged horizontally or in a star-like divergent shape; It is composed of impeller, impeller support frame, worm wheel and worm screw, and it is connected with the tower rod or tower through roller bearings; each wind power generator unit can be equipped with a braking device, which occupies a small area and makes full use of the structural space to increase the sweeping capacity. And area, and has high mechanical stability, so as to obtain greater power output, safe and reliable work.

Description

Collective wind turbine

technical field

The utility model belongs to the field of wind power engines, in particular to a high-power integrated wind power generating set.

Background technique

As a renewable and environmentally friendly energy source, wind energy has become a hot spot for human development. The existing wind power generation devices mainly include support frames, wind wheels, generators and wind-facing devices, and most of them are direct-drive wind generators with low power and high speed. However, most of the current combined wind power generators are positive and negative rotation and a plurality of wind wheels drive a generator through the belt pulley. The Chinese patent application 94231576.6 published on March 20, 1996 discloses a combined wind power generator, which is characterized by magnetic The main shafts of the motor and the wind wheel are fixed on the horizontal plate equidistantly. The stator of the magneto is fixed on the main shaft. Installation, the structure on the pulley is the same as the structure on the magneto pulley, this wind turbine does not make full use of its structural space to increase the sweeping area, so that the best power output cannot be obtained, and its footprint is large, mechanical The stability is not high, the safety and reliability are poor, and the power output is affected.

Contents of the invention

The purpose of this utility model is to overcome the above defects and provide an integrated wind power generating set, which occupies a small area, makes full use of the structural space to increase the sweeping area, and has high mechanical stability, so as to obtain greater power output, safe and reliable work.

The technical scheme adopted in the utility model is as follows:

An integrated wind power generating set, including a wind power generator unit composed of a wind rotor, a generator and a nacelle, and a rotatable tower, which is characterized in that more than two wind power generator units are fixed on the rotatable tower through a support frame , forming a symmetrical structure.

In the collective wind power generator set, the wind power generator unit at the top can be directly arranged on the top of the rotatable tower, and the remaining wind power generator units are arranged at the end of the support frame.

For the collective wind power generating set, the supporting frame can be arranged horizontally, or in a star-like diverging shape.

In the collective wind power generator set, the wind power generator units are arranged at the ends of the respective support frames.

Said collective wind power generating set, the total wind-facing device is arranged on the rotatable tower, which is composed of impeller, impeller support frame, worm gear and worm.

In the collective wind power generating set, the rotatable tower can be connected with the tower bar or the tower through a tapered roller bearing.

In the collective wind power generator set, each wind power generator unit is provided with a braking device.

In the collective wind power generator set, electrical control lines are installed in the nacelle of each wind power generator unit, and the DC output wires drawn from it are respectively collected into the positive and negative busbars and led to the ground, or incorporated into the AC power supply of the AC power grid. , and then collected to the total output bus bar and lead to the ground.

For the collective wind power generation unit, the length of the support frame should not be too long, and each wind power generator unit operates independently without interfering with each other.

For the collective wind power generator set, the models of each wind power generator unit may be the same or different, but the wind power generator units of the same model should be arranged symmetrically on both sides of the rotating tower.

For the collective wind power generating set, the AC power output of the AC power grid can be AC400V or AC230V.

When working, it is preferable that the wind power generator unit at the top is directly arranged on the top of the rotatable tower, and the rest of the wind power generator units are fixed on the rotatable tower through a support frame to form a symmetrical structure, and each wind power generator unit operates independently. Braking devices are respectively provided without interfering with each other. The rotatable tower is equipped with a total wind-facing device composed of impeller, impeller support frame, worm wheel and worm. The rotatable tower is connected with the tower rod through a tapered roller bearing. The anti-wind device tracks the change of wind direction to implement anti-wind. During normal operation, the wind rotor of the wind turbine unit is facing the wind direction, and the impeller rotation plane is parallel to the wind direction and will not rotate. If the wind rotor of the wind turbine unit is not aligned with the wind direction, the impeller Under the action of wind, it starts to rotate, the worm on the impeller shaft rotates to drive the worm wheel, and the worm wheel drives the rotatable tower to rotate so that the wind wheel faces the wind direction, and the impeller rotation plane returns to the position parallel to the wind direction. At this time, the impeller realizes the wind direction , so that the wind facing device on each wind turbine unit is omitted, the manufacturing cost of the wind turbine is reduced, and the stability of the system is increased. The device performs speed limit or shutdown control, and each wind turbine unit can output electric energy separately, or output electric energy together.

The integrated wind power generation unit of the utility model occupies a small area, and fully utilizes the frame space to increase the sweeping area. Proportional, can obtain greater power output, its simple structure, good mechanical stability, safe and reliable work, easy to manufacture and assembly, low cost, short production cycle, suitable for mass production and industrial applications, can be widely used in grasslands, Areas such as mountainous areas, islands and border defense are suitable for independent power supply, and are more suitable for building multi-energy complementary systems with diesel generators, solar cells and other renewable energy sources or building wind farms for grid-connected power generation.

Description of drawings

Fig. 1 is a structural schematic diagram of a wind power generator unit;

Fig. 2 is the structural representation of embodiment 1;

Fig. 3 is embodiment 1 top view;

Fig. 4 is the structural representation of embodiment 2;

Fig. 5 is the structural representation of embodiment 3;

Fig. 6 is a schematic structural diagram of embodiment 4.

In the figure, 1 wind wheel, 2 support frame, 3 rotatable tower, 4 tapered roller bearing, 5 tower rod, 6 impeller, 7 worm, 8 worm wheel, 9 impeller support frame, 10 engine room, 11 generator.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Example 1:

As shown in Fig. 1, Fig. 2 and Fig. 3, an integrated wind power generator set includes five wind power generator units composed of a wind wheel 1, a generator 11 and a nacelle 10 and a rotatable tower tube 3, and the rotatable tower There are four horizontally symmetrical support frames 2 on the tube 3, the wind power generator unit at the top is directly arranged on the top of the rotatable tower tube 3, and the remaining four wind power generator units are symmetrically installed on the ends of the four support frames 2 respectively. part, forming a star-shaped structure. The rotatable tower 3 is provided with a total wind-facing device including the impeller 6, the impeller support frame 9, the worm wheel 8 and the worm 7. The rotatable tower 3 can pass through the tapered roller bearing 4 and the tower rod 5. Each wind turbine unit operates independently without interfering with each other. The model of each wind turbine unit is the same. Each wind turbine unit is equipped with a braking device, and an electrical control circuit is installed in the nacelle. The resulting DC output The wires are collected into the positive and negative busbars respectively, and then lead to the ground.

In this way, when working, each wind generator unit operates independently, and the wind direction is tracked by the total wind-facing device to implement facing the wind. During normal operation, the wind wheel 1 of the wind generator unit is facing the wind direction, and the rotation plane of the impeller 6 is parallel to the wind direction. Will not turn. If the wind wheel 1 of the wind power generator unit is not aligned with the wind direction, the impeller 6 starts to rotate under the wind force, the worm 7 on the impeller shaft rotates to drive the worm wheel 8, and the worm wheel 8 drives the rotatable tower 3 to rotate so that the wind wheel is facing the wind direction , the rotation plane of the impeller 6 returns to the position parallel to the wind direction, and the wind facing is completed at this time, which saves the wind facing devices on each wind power generator unit, reduces the manufacturing cost of the wind power generator, and increases the cost of the system. Stability, each wind turbine unit can limit the speed or stop the control through its own braking device according to its needs, and finally the electric energy output by each wind turbine unit is combined to output electric energy.

Example 2:

Same as Embodiment 1, the difference is that an integrated wind power generating set includes three wind power generator units composed of a wind wheel 1, a generator 11 and a nacelle 10 and a rotatable tower 3, and the rotatable tower 3 There are two symmetrical support frames 2 that diverge in a star shape, the top wind power generator unit is directly set on the top of the rotatable tower 3, and the remaining two wind power generator units are symmetrically installed on the top of the two support frames 2. At the end, electrical control lines are installed in the nacelle of each wind turbine unit, and the DC output wires drawn from them are respectively output and merged into the AC power of the AC400V AC power grid, and then collected to the total output busbar and led to the ground, as shown in Figure 1 and shown in Figure 4.

Example 3:

Same as Embodiment 2, the difference is that an integrated wind power generating set includes four wind power generator units composed of wind rotor 1, generator 11 and nacelle 10, and rotatable tower 3, rotatable tower 3 Four star-shaped diverging support frames 2 are arranged symmetrically on the top, and the four wind turbine units are symmetrically installed at the ends of the four support frames 2. Electrical control lines are installed in the nacelle of each wind turbine unit, and the DC output drawn from them is The wires respectively output the AC power that is merged into the AC230V AC power grid, and then gather to the total output bus bar and lead to the ground, as shown in Figure 1 and Figure 5.

Example 4:

Same as Embodiment 2, the difference is that an integrated wind power generating set includes five wind power generator units composed of wind rotor 1, generator 11 and nacelle 10 and a rotatable tower 3, and the rotatable tower Four star-shaped diverging support frames 2 are arranged symmetrically on the cylinder 3, the wind power generator unit at the top is directly set on the top of the rotatable tower 3, and the remaining four wind power generator units are symmetrically arranged on the ends of the four support frames 2 respectively. The electrical control circuit is installed in the nacelle of each wind turbine unit, and the DC output wires drawn from it are collected to the positive and negative busbars respectively, and then lead to the ground, as shown in Figure 1 and Figure 6.

The specific examples of the utility model have disclosed its preferred implementation, but are not limited to this implementation. Those skilled in the art can easily comprehend the spirit of the present invention based on the above-mentioned embodiments, and make different extensions and changes, but as long as they do not deviate from the spirit of the present invention, they all fall within the protection scope of this patent.

Claims (8)

1, a kind of assembly type wind power generating set, comprise wind-driven generator unit and the rotatable tower tube formed by wind wheel, generator and cabin, it is characterized in that: plural wind-driven generator unit is fixed on the rotatable tower tube by supporting frame, forms symplex structure.

2, assembly type wind power generating set according to claim 1 is characterized in that: the wind-driven generator unit on top is set directly at rotatable tower tube top, and remaining wind-driven generator unit is arranged on the end of supporting frame.

3, assembly type wind power generating set according to claim 1 is characterized in that: supporting frame is horizontally disposed with or becomes starlike divergent shape setting.

4, assembly type wind power generating set according to claim 1 is characterized in that: the end of wind-driven generator unit setting supporting frame separately.

5, assembly type wind power generating set according to claim 1 is characterized in that: always be provided with on the rotatable tower tube wind apparatus is made up of impeller, impeller supporting frame, worm gear and worm screw.

6, assembly type wind power generating set according to claim 1 is characterized in that: rotatable tower tube is connected with tower bar or pylon by tapered roller bearing.

7, assembly type wind power generating set according to claim 1 is characterized in that: each wind-driven generator unit is provided with braking device respectively.

8, assembly type wind power generating set according to claim 1, it is characterized in that: in the cabin of each wind-driven generator unit electrical control circuit is set, its direct current of drawing output electric wire is pooled to the both positive and negative polarity bus respectively and guides to ground, or export the ac power supply of incorporating the Alternating Current Power Supply electrical network into, be pooled to total output bus row again and guide to ground.

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