Vertical axis wind driven generator with blades being opened and closed automatically

Abstract

The invention belongs to the technical field of wind power generation equipment, and in particular relates to a vertical axis wind generator with automatic blade opening and closing. The upper end of the vertical rod is provided with an impeller shaft. The upper and lower discs are set on the impeller shaft. The bottom surface of the upper and lower discs is fixed with a blade bracket. The blade bracket is provided with a wind panel. The wind panel includes two blades and a rotating shaft. , one is a moving blade, the moving blade rotates around the rotating shaft, the center position of the outermost edge of the blade support is provided with a suspension line, and the other end of the suspension line is arranged at the top of the impeller shaft. Compared with the existing wind turbine, the present invention realizes The automatic opening and closing of the blades reduces the cost and improves the power generation efficiency.

Description

technical field [0001] The invention belongs to the technical field of wind power generation equipment, in particular to a vertical shaft wind power generator with automatic opening and closing of blades. Background technique [0002] Under the increasingly severe pressure of environmental protection, the extensive use of renewable energy has become the general trend. Green development is the core of the national development strategy. Continuously enhancing wind power generation is the key direction of national industrial adjustment. Restricting coal power or phasing out coal power is not only a policy In addition, there must be economic advantages. Wind power must also have the ability to compete with coal power in terms of cost, not only in the first and second areas of wind resources, but also in the third and fourth areas. There is still a lot of room for expansion in the scale of domestic wind power generation and utilization of wind resources. However, there is an ind...

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Problems solved by technology

However, there is an indicator that is unfavorable to the development of wind power generation in my country. The average wind abandonment rate is 10.5%. The reason is that the grid load in the wind area is low; another bottleneck restricting wind power generation is cost.

At present, most of the wind turbines used in my country are horizontal axis wind turbines and vertical axis wind turbines. The power of horizontal axis wind turbines has been enlarged and matured, and the cost can no longer be greatly reduced on this basis; vertical axis wind turbines The research of the vertical axis wind turbine started relatively late, and there is no large-scale vertical-axis wind turbine at present. type, type, type, Type, the main consideration is that the blade increases the output when riding the wind, and reduces the resistance when the wind is headwind. For the fixed resistance type blade, the area of ​​the blade should be increased to increase the power, and the headwind resistance will also increase. To solve this problem Contradictions, someone proposed a resistance-type vertical shaft wind turbine with blade opening and closing function that mechanically controls the blades

The principle is that several single blades of the blades on the blade support in the windward section are closed to form an overall wind panel, which can achieve the maximum wind output, while in the upwind section, a single blade is opened to form a downwind channel, and the upwind resistance is minimized. The maximum power of the airflow, and the input of the mechanical device also increases the cost of the vertical axis wind turbine

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