Wind turbine generator set capable of automatically yawing and aligning wind

Abstract

The invention discloses a wind turbine generator set capable of automatically yawing and aligning wind. The wind turbine generator set comprises an iron tower, a first wind aligning mechanism is arranged in the iron tower, a machine cabin is arranged at the upper end of the iron tower, a wind indicator is arranged at the upper end of the machine cabin, a generator is arranged in the machine cabin,and a high-speed rotating shaft is arranged at the output end of the generator; a high-speed gear sleeves the middle of the high-speed rotating shaft, a low-speed gear is arranged at the upper end ofthe high-speed gear, a low-speed rotating shaft is arranged at the end, away from the generator, of the low-speed gear, a supporting block is arranged in the middle of the low-speed rotating shaft, and a second wind aligning mechanism is arranged at the end, away from the low-speed gear, of the low-speed rotating shaft; and a rotor is arranged at the end, away from the machine cabin, of the second wind aligning mechanism, and a plurality of impellers are arranged on the periphery of the rotor. When the wind turbine generator set is used, if the wind direction change is small, the second windaligning mechanism is used for completing the wind alignment process, and when the wind direction change is large, the first wind aligning mechanism is used for completing the wind alignment process,so that the energy consumption required by yawing wind alignment is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a wind turbine with autonomous yaw to face the wind. Background technique [0002] The wind turbine includes a wind rotor and a generator. The wind rotor is composed of blades, hubs, reinforcements, etc. It has functions such as the blades are rotated by the wind to generate electricity, and the head of the generator rotates. It is composed of tower, battery charging controller, inverter, unloader, grid-connected controller, battery pack, etc. [0003] The yaw system, also known as the wind-facing device, is a part of the wind turbine nacelle. Its function is to quickly and smoothly align the wind direction when the direction of the wind speed vector changes, so that the wind rotor can obtain the maximum wind energy. [0004] The yaw system used in the existing wind turbines needs to rotate the entire nacelle during yaw, so that the impellers are facing the directi...

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Problems solved by technology

[0004] The yaw system used in the existing wind turbines needs to rotate the entire nacelle during yaw, so that the impellers are facing the direction of the wind, so that the impellers can collect wind energy and convert the wind energy into electrical energy for storage. Correspondingly, it is also relatively large. If you want to drive the nacelle, rotor, impeller, generator and other devices, you need to consume a lot of electric energy. It is said that the efficiency of converting wind energy is reduced, and the wind direction rotates at a small angle within a certain period of time, and the wind direction changes at any time. Using the yaw system in the traditional wind turbine to face the wind requires the cabin to constantly change the angle. There is a great test for the stability of the components in the cabin;

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