阅读说明：本技术 一种飞轮储能一体化风力发电装置及方法 (Flywheel energy storage integrated wind power generation device and method ) 是由 郑建涛 徐越 于 2021-01-07 设计创作，主要内容包括：本发明公开了一种飞轮储能一体化风力发电装置及方法,包括塔筒,塔筒的顶部通过偏航电机连接有机舱,机舱的内部设置有齿轮箱和发电机,所述齿轮箱的输入轴连接至位于机舱外侧的叶片,且输入轴与叶片之间通过变桨电机连接,所述齿轮箱的输出轴与发电机连接,所述发电机的输出端通过第四电缆连接至变流器,同时所述发电机的输出端通过第一电缆连接至电流混合器,电流混合器通过第二电缆连接至飞轮储能装置,同时电流混合器通过第三电缆分别连接至变桨电机和偏航电机。(The invention discloses a flywheel energy storage integrated wind power generation device and method, which comprises a tower barrel, wherein the top of the tower barrel is connected with a cabin through a yaw motor, a gear box and a generator are arranged in the cabin, an input shaft of the gear box is connected to blades positioned on the outer side of the cabin, the input shaft is connected with the blades through a pitch motor, an output shaft of the gear box is connected with the generator, an output end of the generator is connected to a converter through a fourth cable, an output end of the generator is connected to a current mixer through a first cable, the current mixer is connected to a flywheel energy storage device through a second cable, and the current mixer is connected to the pitch motor and the yaw motor through a third cable.)

1. The flywheel energy storage integrated wind power generation device is characterized by comprising a tower barrel (13), wherein the top of the tower barrel (13) is connected with a cabin (2) through a yaw motor (8), a gear box (3) and a generator (4) are arranged inside the cabin (2), an input shaft of the gear box (3) is connected to a blade (1) located on the outer side of the cabin (2), the input shaft is connected with the blade through a pitch motor (7), an output shaft of the gear box (3) is connected with the generator (4), an output end of the generator (4) is connected to a converter through a fourth cable (12), an output end of the generator (4) is connected to a current mixer (14) through a first cable (9), the current mixer (14) is connected to a flywheel energy storage device (5) through a second cable (10), and the current mixer (14) is connected to the pitch motor (7) and the yaw motor (7) through a third cable (11) respectively 8).

2. A flywheel energy storage integrated wind power plant according to claim 1, characterized in that the flywheel energy storage means (5) is arranged in the nacelle (2).

3. The flywheel energy storage integrated wind power generation device according to claim 2, characterized in that the flywheel energy storage device (5) is connected with the nacelle (2) through a base (6).

4. The flywheel energy storage integrated wind power generation device according to claim 1, characterized in that the flywheel energy storage device (5) is arranged in a tower (13).

5. The flywheel energy storage integrated wind power generation device according to claim 4, characterized in that the flywheel energy storage device (5) is connected with the tower (13) through the base (6).

6. A flywheel energy storage integrated wind power plant according to claim 1, characterized in that the current mixer (14) is also connected to other power supply equipment in the nacelle (13) via a third cable (11).

7. The flywheel energy storage integrated wind power generation device as claimed in claim 1, wherein the tower (13) is a steel-concrete integrated tower or a framework tower.

8. A flywheel energy storage integrated wind power generation method adopts the flywheel energy storage integrated wind power generation device as claimed in any one of claims 1 to 7, and is characterized in that a blade (1) rotates to drive a generator (4) to generate power through a gear box (3), a first cable (9) led out from the output end of the generator (4) passes through a current mixer (14) to supply power to the flywheel energy storage device (5) through a second cable (10) on one hand, and to supply power to a pitch motor (7) and a yaw motor (8) through a third cable (11) on the other hand, when the wind power generator is stopped or has a fault and needs an emergency power supply, the flywheel energy storage device (5) supplies power to the pitch motor (7) and the yaw motor (8) through the third cable (11) so as to guarantee the safety of the wind power generation set.

Technical Field

The invention belongs to the field of wind power generation, and particularly relates to a flywheel energy storage integrated wind power generation device and method.

Background

China is a large energy consumption country, but fossil energy is increasingly polluted, and the development of clean and renewable energy is imperative. By the end of 2019, the renewable energy power generation installation accounts for 40%, and the scale and the power generation capacity of the new energy installation are still further increased along with further adjustment of the energy structure. And the wind generating set has gap and fluctuation, and energy storage is required to be added at certain moments as a standby and emergency safety guarantee power supply.

The existing fan energy storage technical scheme mainly comprises storage battery energy storage and capacitor energy storage. Has the problems of large volume, short service life, short discharge time and the like. And the batteries are separated from the fan or are used in a centralized way at a long distance. The installation and debugging are complex and the workload is large.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a flywheel energy storage integrated wind power generation device and method.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a flywheel energy storage integration wind power generation set, includes a tower section of thick bamboo, and the top of a tower section of thick bamboo is connected with the cabin through yaw motor, and the inside in cabin is provided with gear box and generator, the input shaft of gear box is connected to the blade that is located the cabin outside, and is connected through becoming the oar motor between input shaft and the blade, the output shaft and the generator of gear box are connected, the output of generator is connected to the converter through the fourth cable, simultaneously the output of generator is connected to the current mixer through first cable, the current mixer is connected to flywheel energy storage device through the second cable, and the current mixer is connected to become oar motor and yaw motor respectively through the third cable simultaneously.

Further, the flywheel energy storage device is arranged in the nacelle.

Further, the flywheel energy storage device is connected with the engine room through the base.

Further, the flywheel energy storage device is arranged in the tower barrel.

Further, the flywheel energy storage device is connected with the tower barrel through the base.

Further, the current mixer is also connected to other power supply equipment in the nacelle through a third cable.

Further, the tower drum is a steel-concrete integrated tower drum or a framework type tower drum.

A flywheel energy storage integrated wind power generation method is characterized in that blades rotate, a generator is driven to generate power through a gear box, a first cable led out from the output end of the generator passes through a current mixer to supply power to a flywheel energy storage device through a second cable, and supplies power to a pitch motor and a yaw motor through a third cable.

Compared with the prior art, the invention has the following beneficial technical effects:

the flywheel energy storage device is arranged in a cabin of the wind power generator, a current branch is led out from an outlet of the generator to charge the flywheel energy storage device for storing energy, and when the wind power generator needs to supply power to the pitch motor and the yaw motor, the flywheel energy storage device supplies power nearby. The flywheel energy storage device adopted by the invention is an energy storage device for converting mechanical energy into electric energy, breaks through the limitation of chemical batteries, and realizes energy storage by a physical method. Through an electric/power generation reciprocal type bidirectional motor, mutual conversion and storage between electric energy and mechanical kinetic energy of a high-speed running flywheel are realized, and through frequency modulation, rectification, constant voltage and different types of load interfaces, during energy storage, the electric energy is converted through a power converter and then drives a motor to run, the motor drives the flywheel to rotate at an accelerated speed, the flywheel stores the energy in the form of kinetic energy, the energy storage process of conversion from the electric energy to the mechanical energy is completed, and the energy is stored in a flywheel body rotating at a high speed; when releasing energy, the flywheel rotating at high speed drags the motor to generate electricity, current and voltage suitable for loads are output through the power converter, the energy releasing process from mechanical energy to electric energy conversion is completed, the whole flywheel energy storage device realizes the processes of inputting, storing and outputting electric energy, the flywheel energy storage device has high energy density, high working efficiency, small size, light weight, no strict requirement on environmental temperature and long service life, can be integrated into a fan cabin, is assembled and adjusted in a manufacturing plant, saves field workload, and improves the installation quality.

Drawings

FIG. 1 is a schematic structural diagram of a flywheel energy storage integrated wind power generation device of the present invention.

Wherein, 1, a blade; 2. a nacelle; 3. a gear case; 4. a generator; 5. a flywheel energy storage device; 6. a base; 7. a variable pitch motor; 8. a yaw motor; 9. a first cable; 10. a second cable; 11. a third cable; 12. a fourth cable; 13. a tower drum; 14. a current mixer.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

as shown in figure 1, the flywheel energy storage integrated wind power generation device is characterized in that a flywheel energy storage device 5 is arranged in a cabin 2 of a wind power generator and is assembled and adjusted in a manufacturing plant, the field workload is saved, and the installation quality is improved.

The flywheel energy storage device 5 is connected with the engine room 2 of the wind driven generator through the base 6, the flywheel energy storage device 5 and the wind driven generator are integrated, and the position of the flywheel energy storage device can be arranged in the engine room, can also be arranged in a tower barrel of the wind driven generator or can be arranged at any position in a unit. A first cable 9 leading out from the outlet of the generator 4 passes through a current mixer 14 to supply power to the flywheel energy storage device 5 through a second cable 10 on one hand and supply power to the pitch motor 7 and the yaw motor 8 through a third cable 11 on the other hand. When the wind driven generator is shut down or needs an emergency power supply due to failure, the flywheel energy storage device supplies power to the pitch motor 7 and the yaw motor 8 through the third cable 11 to ensure the safety of the wind driven generator set, the power supply range of the flywheel energy storage device 5 comprises but is not limited to the pitch motor 7 and the yaw motor 8, and also comprises other power supply equipment needed by a control cabinet in the engine room 2 and the like.

The following further details the embodiments of the present invention:

the flywheel energy storage device 5 is connected with the cabin 2 of the wind driven generator through a base 6. After passing through a current mixer 14, a first cable 9 led out from the outlet of the generator 4 supplies power to the flywheel energy storage device 5 through a second cable 10 on one hand, and supplies power to the pitch motor 7 and the yaw motor 8 through a third cable 11 on the other hand. When the wind driven generator is shut down or an emergency power supply is needed due to failure, the flywheel energy storage device 5 supplies power to the pitch motor 7 and the yaw motor 8 through the third cable 11 to ensure the safety of the wind driven generator set.