High-cost-performance magnetic suspension horizontal shaft wind generating set

Abstract

The invention discloses a wind generator of a horizontal shaft semi-magnetic suspension structure. A generator permanent magnet rotor body directly generates a magnetic suspension force, a wind thrust is automatically balanced, so that the friction loss generated in a bearing by the wind thrust is eliminated, the efficiency of the generating set is improved, more energy can be obtained from wind, the wearing and noises of the bearing are simultaneously reduced, the maintenance cost is lowered, and the service lifetime of the generating set is prolonged. Two kinds of external forces, the gravity and the wind thrust, are usually applied to the wind generator, both the two kinds of forces generate friction losses, the semi-magnetic suspension structure can be used for eliminating the wind thrust friction loss of the horizontal shaft generating set or eliminating the gravity friction loss of a vertical shaft generating set. The other force still needs to be restrained and positioned by an improved bearing, the magnetic field of the generator is enabled to have a magnetic suspension function, and the magnetic suspension reconstruction cost is substantially lowered, so that wearing can be reduced by half, the excellent mechanical property is realized, the high cost performance is achieved, the performance is excellent, and the practical value is high.

Description

technical field [0001] The invention belongs to the technical field of turbine generators, in particular, it proposes a structure of a permanent magnet wind power generating set with magnetic levitation characteristics. Background technique [0002] In the field of wind power generation technology, the turbine generator converts the kinetic energy in the wind into electrical energy, and the turbine and generator are indispensable electromechanical energy conversion devices. In order to get more energy from the wind, under the premise that the turbine is determined, it is hoped that the electromechanical system will have smaller frictional resistance, higher unit efficiency, longer operating life, lower mechanical noise, and fewer mechanical failures . The wind power generator with magnetic suspension bearing can obtain above-mentioned many advantages at the same time. However, after adding the usual full magnetic levitation device, the cost of the entire wind turbine will ...

AI Technical Summary

Problems solved by technology

However, after adding the usual full magnetic levitation device, the cost of the entire wind turbine will rise sharply, and the cost performance will decrease, which will increase the cost of electricity, which is not conducive to the popularization and application of wind power generators. Therefore, it is necessary to develop a new structure of magnetic suspension bearings with high cost performance and low cost. Wind turbines to meet the needs of the high-end wind power market

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