Brake mechanism for magnetic control over starting boosting and speed reduction for vertical axis wind turbine

Abstract

The invention belongs to wind turbines, and relates to a brake mechanism for magnetic control over starting boosting and speed reduction for a vertical axis wind turbine. Permanent magnets are assembled on the outer side faces of vertical blades, support rods are fixedly arranged at the outer side portion positions of the vertical blades, and electromagnets, distance and rotation speed sensors and single-chip microcomputer controllers are arranged on the support rods. The electromagnets are matched with the permanent magnets. The distance and rotation speed sensors are matched with the vertical blades. The single-chip microcomputers are connected with the electromagnets and the distance and rotation speed sensors through wires correspondingly. Distance and rotation speed receiving and processing programs and electromagnet polarity changing regulation and control programs are set in the single-chip microcomputer controllers. The brake mechanism is novel, reasonable and simple in structure, the draught fan starting boosting and speed reduction braking effects are good, the regulation and control automation degree is high, and the draught fan using efficiency and safety are high.

Description

technical field [0001] The invention belongs to wind turbines, and mainly relates to a magnetic force control mechanism for starting boosting and deceleration braking, which is equipped on a vertical axis wind turbine. Background technique [0002] When the natural wind force is small, it is quite difficult to start the vertical axis wind turbine, the start-up time is long, and the production efficiency is low. When the natural wind is strong, it is easy to cause the vertical blades to rotate too fast during the operation of the vertical axis wind turbine, and even an operation accident occurs, resulting in equipment damage. In order to solve the above problems, such as mechanically retractable sail-type vertical axis wind turbine start-up booster and deceleration brake mechanism have been developed, but there are technical defects such as complex structure, lagging control action, and high failure rate that need to be solved. Contents of the invention [0003] The purpos...

AI Technical Summary

Problems solved by technology

[0002] When the natural wind force is small, the start-up of the vertical axis wind turbine is quite difficult, the start-up time is long, and the production efficiency is low

When the natural wind force is strong, it is easy to cause the vertical blades to rotate too fast during the operation of the vertical axis wind turbine, or even cause an operation accident, resulting in equipment damage.

In order to solve the above problems, such as mechanically retractable sail-type vertical axis wind turbine start-up boosting and deceleration braking mechanisms have been developed, but there are technical defects such as complex structure, lagging control action, and high failure rate that need to be solved

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