Wind-driven generator blade capable of realizing sectioned furling

Abstract

The invention discloses a wind-driven generator blade capable of realizing sectioned furling. The wind-driven generator blade capable of realizing sectioned furling comprises a blade body, wherein a plurality of blade sectioning units which are sequentially connected are arranged between the blade root of the blade body and the blade tip; a furling shaft extending in the length direction of each blade sectioning unit is arranged in the blade sectioning unit; the front edge part of each blade sectioning unit is fixed, and the rear edge part of each blade sectioning unit is furlable; one side ofeach furlable rear edge part is connected to the corresponding furling shaft, the other side of each furlable rear edge part is lapped onto the corresponding front edge part, and the two ends of eachfurlable rear edge part are slidably installed on guide rails at the two ends of the corresponding blade sectioning unit separately; a sensor is arranged on the surface of each blade sectioning unit,and a control system in signal connection with the corresponding sensor is arranged in each blade sectioning unit; each control system is in signal connection with a power source of the correspondingfurling shaft; and the control systems of the plurality of blade sectioning units are mutually independent. According to the wind-driven generator blade capable of realizing sectioned furling, the wind capture area of the blade can be automatically adjusted according to the actual running condition, and the blade is capable of automatically adjusting the capacity of capturing wind energy under different wind conditions.

Description

technical field [0001] The invention relates to the technical field of wind power generator blades, in particular to a wind power generator blade that can be retracted in segments. Background technique [0002] Wind energy is considered to be one of the cleanest and most environmentally friendly green energy available at present. In recent years, wind power generation has become a boom in the world and has received more and more favor. The principle of wind power generation is to use wind energy to drive the blades of the wind turbine to rotate, and then increase the speed through the speed-increasing gearbox or directly drive the generator to rotate to generate electricity. Convert the kinetic energy of the wind into mechanical energy, and then convert the mechanical energy into electrical energy, which is wind power generation. [0003] As the wind-catching device in the unit, the blade is one of the most critical and important components in the wind turbine. Its cost acc...

AI Technical Summary

Problems solved by technology

The design life of wind turbines is generally 20 or 25 years. During such a long life cycle, extreme wind conditions such as typhoons will be encountered. At present, the measures taken to deal with extreme conditions are generally hard resistance after feathering and shutting down. , which leads to the fact that the blades must be very heavy to meet the requirements for the rigidity and strength of the blade structure, and the power generation during the typhoon period is lost

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