Vertical axis wind turbine with protective sleeve

Abstract

The invention discloses a vertical axis wind turbine with a protective sleeve. The vertical axis wind turbine with the protective sleeve comprises a power generation device and a protective device. According to the power generation device, a generator, a rotary speed sensor and a PLC are arranged in a barrel. The rotary speed sensor detects the rotary speed of a wind turbine body and outputs pulse signals to the PLC. According to the protective device, an installing hole is formed in the outer side surface of the protective sleeve, installing plates are arranged on the parts, on two sides of the installing hole, of the protective sleeve, and gears connected rotationally are arranged in the installing plates on two sides. Driving motors on the outer sides of the installing plates drive the gears to rotate. Racks engaged with the gears are arranged on the outer side surface of a protective pillar and the portion, extending to the barrel, of the protective pillar. The PLC controls the driving motors to operate through driving interfaces. According to the vertical axis wind turbine with the protective sleeve, the whole power generator unit system is controlled by the PLC, the PLC reads the rotary speed of blades in real time and controls the driving motors so that the protective sleeve can move upwards or downwards, the rotary speed is kept in a stable state, and therefore the purposes of controllable rotary speed, safety, reliability and durability are realized.

Description

technical field [0001] The invention relates to a wind power generator, in particular to a vertical axis wind power generator with a protective cover. Background technique [0002] A wind turbine is an energy conversion device that converts wind energy into electrical energy. According to the position of the wind rotor axis in the space direction, it can be divided into two types: horizontal axis wind turbines and vertical axis wind turbines. At present, most of the wind power generators put into use are horizontal axis wind power generators, and the vertical axis wind power generators have been neglected for a long time due to the general belief that the starting torque of the wind rotor is small and the utilization rate of wind energy is low. Research shows that the wind energy utilization rate of vertical-axis wind turbines is not lower than that of horizontal-axis wind turbines, but when the wind force is too strong, it is difficult to control the speed of vertical-axis ...

AI Technical Summary

Problems solved by technology

At present, most of the wind power generators put into use are horizontal axis wind power generators, and the vertical axis wind power generators have been ignored for a long time because of the small starting torque of the wind rotor and the low utilization rate of wind energy.

Research shows that the wind energy utilization rate of vertical-axis wind turbines is not lower than that of horizontal-axis wind turbines, but when the wind force is too strong, it is difficult to control the speed of vertical-axis wind turbines at high speeds, and at the same time, the force on the windward area of ​​the wind rotor is large , and sometimes the output power of the generator is too large, it is easy to cause damage to the generator beyond the rated power

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