Direct-drive type double-stator oblique-pole double-freedom-degree permanent magnet generator for ocean energy power generation

Abstract

The invention relates to a direct-drive type double-stator oblique-pole double-freedom-degree permanent magnet generator for ocean energy power generation. An inner-outer-layer double-stator structureis adopted, and the winding directions of two sets of windings in two sets of stators are perpendicular to each other, and the two sets of windings are wound in the circumferential direction and theaxial direction respectively; a circular shaft and a waterproof outer shell are connected through a linear motion bearing and an embedded rotary bearing, and the linear and rotary relative motion of arotor is realized; permanent magnets are embedded in the rotor, the magnetizing directions of the adjacent permanent magnets in the axial direction are opposite, and the permanent magnets are arranged in the circumferential direction of the oblique poles; the wave energy is converted into linear motion mechanical energy of the rotor through a floater, a turnover magnetic field is generated in theaxial direction, and electromotive force is induced in the circumferential coil, so that wave energy power generation can be realized; the tidal energy is converted into the rotor rotating mechanicalenergy through an impeller; by virtue of the permanent magnet oblique poles, a turnover magnetic field is generated in the circumferential direction, an electromotive force is induced in the axial coil, and tidal energy power generation is realized; and the oblique poles reduce the positioning force of tooth grooves, so that the power generation quality is improved. According to the generator, the wave energy and the tidal energy can be utilized at the same time, so that the characteristic of high power generation efficiency can be realized, and the generator is suitable for popularization and application.

Description

technical field [0001] The invention relates to a direct-drive ocean energy power generation double-stator oblique pole double-degree-of-freedom permanent magnet generator, specifically a double-stator and mover oblique-pole structure, which can be directly and simultaneously utilized through the linear and rotational double-degree-of-freedom motion of the mover. Permanent magnet generator for wave energy and tidal energy generation. Background technique [0002] Ocean energy is currently one of the most concerned new energy power generation fields. my country's mainland has a coastline of 18,000 kilometers. Reasonable use of ocean energy for power generation can effectively solve my country's energy shortage problem and has great market prospects. [0003] Wave energy and tidal energy are the most important components of ocean energy. At present, there have been many research works on wave energy and tidal energy power generation systems and generators. However, since th...

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Problems solved by technology

However, since the direct-drive wave energy generator is mainly a linear motor, it can only use the mechanical energy of linear motion; the direct-drive tidal generator is mainly a rotating motor, which can only use the mechanical energy of rotating motion; currently, a single generator can only use two types of ocean energy. One of the limiting energy efficiency

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