Wind power generation device

Abstract

The invention discloses a wind power generation device, which comprises a generator and a tower, the tower is provided with a wind wheel, the wind wheel is rotatably arranged on the tower, and the wind wheel is provided with a breeze driving assembly and a typhoon driving assembly; the breeze driving assembly comprises a supporting frame, breeze fan blades are arranged on the supporting frame, a winding drum is arranged at one ends of the breeze fan blades, and the winding drum is connected with a first motor; the typhoon driving assembly comprises typhoon blades; a wind speed monitor arranged on the tower and connected with the first motor; and when the wind speed monitor detects that the external wind speed is larger than a first set value, the winding drum acts to roll up the breeze fan blades. According to the wind power generation device provided by the invention, the problem that a conventional wind power generation device cannot give consideration to high wind speed and low wind speed at the same time is solved by arranging the breeze fan blades capable of being rolled up, the wind power generation device can achieve full-load output at the very low wind speed, the annual average generating capacity of the wind power generation device is greatly improved, and the wind power generation device can be widely popularized and used nationwide.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a wind power generation device capable of generating power under both breeze and typhoon conditions. Background technique [0002] At present, the wind power generation devices commonly used in the world all use fixed-area blades. This design is due to the fixed area of ​​the blades. When the wind speed is low, the thrust produced by the blades is low, and when the wind speed is high, the thrust generated by the blades is high. When the area of ​​the wind blade is large, the breeze can also generate enough thrust for wind power generation, but in case of strong wind or typhoon, it is easy to damage the wind blade, and even damage the main shaft and generator due to the excessive thrust generated by the wind blade. Therefore, conventional wind power generating devices generally select wind blades with a smaller area according to possible strong winds or typhoons in the local a...

AI Technical Summary

Problems solved by technology

But in this way, the wind power generation device can only be installed and used in the windy area, and when the wind speed is low, the output power is greatly reduced, resulting in low annual power generation hours of the wind power generation device and low equipment utilization. Installed in areas with low wind speed, the hours of power generation will be even lower, and it can even be said that there is no power generation

Images