Brushless claw-pole excitation wind power generation device

Abstract

The invention discloses a brushless claw-pole excitation wind power generation device which comprises a fan blade, a generator, a bracket, a wind direction rudder, a slip ring assembly and a fixed seat. The fan blade is fixed on a rotating shaft of the generator by a screw thread; the generator is fixed at one end of the bracket; the other end of the bracket is connected with the slip ring assembly; the slip ring assembly is fixedly connected to the fixed seat; and the wind direction rudder is fixed at one side, which is close to the fan blade, of the bracket. According to the invention, by adopting the brushless claw-pole excitation generator, power generation of the device is not limited by the rotating speed, the device can normally work at different rotating speeds, and working stability of the device in various environments is improved; due to adoption of the structure that the wind direction rudder and the bracket are fixedly connected at the side close to the fan blade, when the wind direction is changed, orientation of the fan blade can be well changed; meanwhile, compared with a conventional wind driven generator, the brushless claw-pole excitation wind power generation device has the characteristic that mechanisms such as a rudder stock and the like are omitted, and thus, the brushless claw-pole excitation wind power generation device has a simple structure and a small working space; and the excitation generator adopts a front-stator and totally sealed structure, so that a motor does not need to be maintained, and the brushless claw-pole excitation wind power generation device has strong adaptability to the environment.

Description

technical field [0001] The invention relates to the field of energy technology, in particular to a brushless claw pole excitation wind power generation device. Background technique [0002] Existing wind generators use permanent magnet generators, equipped with controllers for voltage regulation, batteries for energy storage, and inverters to convert and boost voltages required by household appliances. Since the rotor is a permanent magnet, the magnetic field cannot be controlled and adjusted, and its output power increases with the increase of the wind speed. If the power consumption is less than the power generation, the excess power will be released through the electronic load of the controller. , to control the system voltage. This mode controller has high work intensity and poor reliability. [0003] Permanent magnet wind generators are suitable for use under stable speed and stable load conditions, such as large-scale wind farms, where the wind turbines use automatic...

AI Technical Summary

Problems solved by technology

At the same time, due to the uncontrollable rotor magnetic field of the permanent magnet wind turbine, it is difficult to control the output power of the generator, so it is not suitable for use in areas without power grids, such as islands without electricity, fishing rafts, etc.

Moreover, the permanent magnet is expensive and the cost of the generator is high, the controller is difficult to produce and the price is high, which increases the cost of the permanent magnet wind turbine

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