Adjustable-pitch propeller vertical axis wind turbine rotor

Abstract

An adjustable-pitch propeller vertical axis wind turbine rotor comprises a wind rotor set arranged on a rotating shaft; and a power generator is connected to the bottom of the rotating shaft and connected with a storage battery. The adjustable-pitch propeller vertical axis wind turbine rotor is characterized in that the wind rotor set comprises a lifting force type wind rotor and resistance type wind rotors; the upper portion and the lower portion of the lifting force type wind rotor are each provided with the corresponding resistance type wind rotor; the resistance type wind rotors are directly arranged on the rotating shaft; the lifting force type wind rotor is connected with the rotating shaft through a connection rod; wind indicators are arranged on the tops of blades of the lifting force type wind rotor; sensors are arranged at the front edges of the blades; a control cabinet is further arranged on the rotating shaft; direction adjusting mechanisms are connected to the control cabinet; and the other ends of the direction adjusting mechanisms are connected with the middle portions of the blades of the lifting force type wind rotor. According to the adjustable-pitch propeller vertical axis wind turbine rotor, the wind indicators, the sensors, the direction adjusting mechanisms and controllers jointly act so that the angles of attack of the blades of the lifting force type wind rotor can be kept at the optimal positions all the time, and the wind energy utilizing rate of a vertical axis wind turbine is greatly increased.

Description

technical field [0001] The invention relates to a wind turbine, in particular to a wind wheel of a hybrid adjustable-paddle vertical axis wind turbine. Background technique [0002] The existing vertical axis wind turbines mainly include: vertical axis wind turbines of lift type wind rotors, vertical axis wind turbines of drag type wind rotors and vertical axis wind turbines of hybrid wind rotors. For the vertical axis wind turbine of the lift type rotor, although the output power is higher than that of the drag type, its starting wind speed is higher; while the vertical axis wind turbine of the drag type wind rotor can be started at low wind speed, but the output power is higher than that of the drag type. Small; compared with the first two wind turbines, the hybrid vertical axis wind turbine has both higher output power and lower starting wind speed, but due to the combination of lift blades and drag blades, the drag blades The internal flow field of the lift-type wind ro...

AI Technical Summary

Problems solved by technology

For the vertical axis wind turbine with lift type wind rotor, although the output power is higher than that of the resistance type, its starting wind speed is higher; while the vertical axis wind turbine with drag type wind rotor can start at low wind speed, but the output power is lower. Small; compared with the first two types of wind turbines, the hybrid vertical axis wind turbine has both higher output power and lower starting wind speed, but due to the combination of lift-type blades and drag-type blades, the resistance-type blades The internal flow field of the lift-type wind rotor is affected during rotation, resulting in low wind energy utilization, and all existing vertical axis wind turbines cannot achieve real pitch control

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