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Mixed type vertical axis wind driven generator

A generator and vertical axis technology, applied in the direction of wind turbines, wind motor combinations, wind turbine control, etc., can solve problems affecting system efficiency, loss, poor performance, etc.

Inactive Publication Date: 2011-11-30
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the blades of the S-type wind rotor in the traditional hybrid wind turbine are all fixed. Because the performance of the S-type wind rotor is not good at high wind speeds, it cannot run at high speed. Therefore, when the S-type wind rotor drives the lift type After the normal operation of the wind turbine, when the overall system reaches a relatively high speed, the starting wind wheel (S-type wind wheel) loses its beneficial effect and becomes the load of the system, which affects the lift-type Darrieus wind turbine. The operating efficiency of the system has a "delay" effect on the entire system, affecting the overall efficiency of the system
In today's research on hybrid wind turbines, there are few methods to solve the "trailing" effect of S-type wind turbines

Method used

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  • Mixed type vertical axis wind driven generator
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  • Mixed type vertical axis wind driven generator

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0024] Such as figure 1 , 2 , 3, the S-shaped wind wheel automatic closing system 4 in this embodiment is made up of a connecting rod 12, a sphere 10, and a spring 11. The sphere 10 is connected to the S-shaped wind rotor blade 9 through the connecting rod 12, one end of the spring 11 is connected to the sphere 10, and the other end is fixed on the upper partition 13 of the S-shaped wind rotor 5, and the S-shaped wind rotor blade 9 is on the top. The partition 13 or the blade rail 17 on the lower partition 24 moves inside. The S-shaped wind rotor automatic closing system 4 plays a role in enabling the S-shaped wind rotor blades 9 to change the windward area of ​​the blades according to the requirements of the rotational speed: when the entire system starts from a standstill, the S-shaped wind rotor automatically closes The spring 11 in the system 4 pulls the sphere 10, and through the action of the connecting rod 12 connecting the S-shaped wind rotor blade 9, the S-shaped wi...

no. 2 example

[0026] Such as Figure 4 , 5 Shown, this automatic closing system 8 is made up of short connecting rod 21, long connecting rod 23, hinge 14, spheroid 22. One end of the long connecting rod 23 is connected with the sphere 22, the other end is hinged with the short connecting rod 21, and the middle part is fixed on the upper partition 13 of the S-shaped wind wheel through the hinge 14. The other end of the short connecting rod 21 is connected with the S-shaped wind rotor blade 9 , and the S-shaped wind rotor blade 9 moves in the blade track 17 on the upper partition 13 or the lower partition 24 . The automatic closing system 8 plays the role of enabling the S-shaped wind rotor blades 9 to change the windward area of ​​the S-shaped wind rotor 5 according to the requirements of the rotating speed: when the entire wind power generator system starts from standstill, the automatic closing system 8 The sphere 22 in the center has no centrifugal force, and its gravity is through the ...

no. 3 example

[0028] Such as Figure 6 , 7As shown, the automatic closing system 15 is composed of a drive motor 16 , a gear mechanism 18 , an electronic control system controller 19 and a rotational speed sensor 20 . The rotational speed sensor 20 transmits the rotational speed signal to the electronic control system controller 19, and the electronic control system controller 19 sends an electric signal to the drive motor 16, and the drive motor 16 makes the S-shaped wind rotor blade 9 be arranged on the upper partition 13 or the lower partition. The blade track 17 on the plate 24 moves inside to change the position of the S-shaped wind rotor blade 9, and the gear mechanism 18 is arranged on the upper partition 13, which meshes with the two S-shaped wind rotor blades 9 respectively, so as to ensure the smooth movement of the two blades. synchronicity. The automatic closing system 15 plays a role in making the S-shaped wind rotor blades 9 change the windward area of ​​the S-shaped wind ro...

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Abstract

The invention provides a small mixed type vertical axis wind driven generator, which mainly comprises a Darrieus wind wheel (1), a Darrieus wind wheel connecting rod (2), an S-shaped wind wheel (5), a rotating shaft (3), automatic closing systems (4, 8 and 15) of the S-shaped wind wheel and a generator (7), wherein the S-shaped wind wheel (5) comprises a partition board (6) and S-shaped air wheelblades (9). The S-shaped air wheel blades (9) can move in blade tracks (17) on an upper partition board (13) or a lower partition board (24), the automatic closing systems (4, 8 and 15) of the S-shaped wind wheel are arranged on the upper partition board (13) or the lower partition board (24) of the S-shaped air wheel (5) and can change the relative positions of the S-shaped air wheel blades (9) according to the state of the generator and further change the frontal area of the S-shaped air wheel (5) so as to reduce the resistance in normal operation in the condition of not changing the maximum starting torque of the whole generator system and make the whole system more efficient in normal operation. The mixed type vertical axis generator provides the concept of the movable S-shaped air wheel blade, has simple structure, is easy to implement, has high reliability, and is suitable for various occasions of wind power generation.

Description

technical field [0001] The invention relates to a hybrid vertical-axis wind power generator, in particular to a Darrieux-S type hybrid vertical-axis wind power generator capable of closing S-shaped wind rotor blades. technical background [0002] A wind turbine, referred to as a wind turbine, is a mechanical device that converts wind energy into electrical energy. With the rise of new energy applications, wind turbines have attracted more and more attention. The hybrid vertical axis wind turbine is a typical vertical axis wind turbine, which is being widely used in various small and independent grid power supply systems. In traditional hybrid vertical-axis wind turbines, the lift-type Darrieus wind turbine often does not have the ability to self-start due to the relatively high start-up wind speed requirement, and the S-type wind rotor is required as the start-up wind rotor. But at present, the blades of the S-type wind rotor in the traditional hybrid wind turbine are all ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D7/06
CPCY02E10/72Y02E10/74
Inventor 罗小兵姚家伟桂许龙刘胜
Owner HUAZHONG UNIV OF SCI & TECH