Intelligent reducing self-starting vertical axis wind power generation device

Abstract

The invention discloses an intelligent reducing self-starting vertical axis wind power generation device. A straight-line wing-shaped structure in a vertical axis wind turbine is adopted; the combined structure of a servo motor and a gear rack is used for controlling and regulating the gyration radius of a wind wheel; when wind speed is lower than cut-in speed, the wind power generation device automatically starts an operation and automatic-switching function; and the gyration radius of the wind wheel is intelligently controlled, the wind power generation device is subjected to self-starting, and safe operation is monitored. From the aspect of changing the gyration radius of the wind wheel of the vertical axis wind turbine, the invention provides an effective method of improving the efficiency of the vertical axis wind wheel and the output power of the wind power generation device, and provides an effective path for the self starting of the wind power generation device when wind speed is lower than the cut-in speed and the self protection of the wind power generation device when wind speed exceeds rated wind speed. The intelligent reducing self-starting vertical axis wind power generation device is especially suitable for wind power generation application occasions with high wind speed and quickly-changed wind speed and wind direction, such as ships, ocean engineering platforms, islands and the like, and has the advantages of compact structure, high control precision of the gyration radius of the wind wheel and stable system stability and is convention to install.

Description

technical field [0001] The invention relates to a wind power generation device, in particular to an intelligent variable diameter self-starting vertical axis wind power generation device. Background technique [0002] Wind energy is a clean and abundant renewable energy, which is essentially a conversion form of solar energy. The types of wind turbines can be divided into horizontal axis wind turbines and vertical axis wind turbines according to the position of the wind turbine rotor shaft and wind direction. Compared with horizontal-axis wind turbines, vertical-axis wind turbines can receive wind from any direction without wind-facing devices. Wind wheels and other components of energy conversion, such as gears and generators, can be easily installed on the ground, thus There is no need to build expensive towers, and it is easy to maintain and maintain, thereby reducing manufacturing and operating costs. Therefore, vertical axis wind turbines have gradually become the fir...

AI Technical Summary

Problems solved by technology

[0005] The blades of the vertical-axis wind turbine with straight-line airfoil structure adopt the cross-sectional shape of the airfoil of the aircraft, and use the rotational moment generated by air lift to work, although the power generation efficiency is higher than that of the drag-type vertical-axis wind turbine that uses air resistance to generate rotational torque , but it has the disadvantage of difficulty in starting

In order to improve the start-up performance of lift-type vertical axis wind turbines, most of the lift-drag composite blade structures are used at present. By adjusting the angle of the blade relative to the rotation tangent, the conversion between lift type and drag type is realized, which makes the wind turbine mechanism too complicated, which is not conducive to Long-term stable operation of wind turbines

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