Vertical-axis wind generating set

Abstract

The invention provides a vertical-axis wind generating set which comprises blades, a spindle, a permanent-magnetic direct-drive generator, a base and a power electronic device. The spindle is installed on the base. The blades are arranged around the spindle. Each blade is of a curved surface structure and is installed on the spindle through an installation side edge, and therefore the spindle can be driven to rotate through rotation of the blades. The spindle is connected to the permanent-magnetic direct-drive generator in a coupled mode, and thus the mechanical energy of the spindle can be transferred to the permanent-magnetic direct-drive generator when the spindle rotates. The permanent-magnetic direct-drive generator is used for converting the received mechanical energy into electric energy so as to generate induced currents, and transferring the generated induced currents to the power electronic device. The power electronic device is used for conducting rectification and inversion on the induced currents and transferring the rectified and inverted electric energy to a power grid.

Description

technical field [0001] The present invention relates to the field of new energy power generation, more specifically, the present invention relates to a brand-new vertical-axis wind power generating set, which adopts a permanent magnet direct-drive generator and has no yaw or pitch change device. Background technique [0002] At present, the mainstream of wind turbines is the horizontal axis fan, which has the advantages of large single-unit capacity and long service life, but its yaw and pitch change devices are relatively complicated. When the wind direction and wind speed change, the central controller needs to control the direction and propeller A series of controls such as distance and angle make the control method more complicated. Since most horizontal-axis wind turbines use double-fed generators, a speed-increasing gearbox needs to be added to the front end, resulting in a high failure rate of the gearbox, which seriously affects the normal operation of the wind turbi...

AI Technical Summary

Problems solved by technology

[0002] At present, the mainstream of wind turbines is the horizontal axis fan, which has the advantages of large single-unit capacity and long service life, but its yaw and pitch change devices are relatively complicated. When the wind direction and wind speed change, the central controller needs to control the direction and propeller A series of controls such as distance and angle, resulting in a more complicated control method

Since most horizontal axis wind turbines use double-fed generators, the front end needs to be equipped with a speed-up gearbox, which makes the failure rate of the gearbox high and seriously affects the normal operation of the wind turbine.

The height of the nacelle of the horizontal axis fan varies from tens of meters due to its capacity, which makes the maintenance work more complicated and more dangerous

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