Double-stator permanent magnetic wind power generation system

Abstract

The invention discloses a double-stator permanent magnetic wind power generation system. The system comprises a wind turbine; one end of the wind turbine is connected with a multistage acceleration gear box; the wind turbine collects wind energy by utilizing impellers of the wind turbine, and is accelerated through the multistage acceleration gear box, and the wind energy is fed into a permanent magnetic synchronous generator; the wind energy acts on a rotor of the permanent magnetic synchronous generator; the rotor of the permanent magnetic synchronous generator is driven to rotate to convert mechanical energy to electric energy; and the obtained electric energy is processed by a power converter, a filter and a boost transformer and then is input into a power grid. The double-stator permanent magnetic wind power generation system, provided by the invention, is an intelligent, modular and mechanical device; the multistage acceleration gear box and the wind turbine are connected, so that the acceleration purpose on the wind turbine is achieved; all fixed blades and movable blades of the wind turbine form an integrated wing blade; and lift of air power is used for working to obtain higher utilization rate of the wind energy.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a double-stator permanent magnet wind power generation system. Background technique [0002] Wind power is an effective way to utilize clean energy on a large scale. Due to its outstanding role in reducing environmental pollution, improving energy structure, and solving the problem of electricity consumption for residents in remote areas, it has attracted more and more attention from all over the world. In recent years, wind power technology has made great progress and development, and large-scale and large-capacity wind farms have been put into operation one after another around the world. However, since the output power of wind turbines is mainly affected by wind speed, air pressure, temperature and other aspects, it often fluctuates. When the wind power access capacity reaches a certain proportion, the random fluctuation of its output power will bring some negative effect...

AI Technical Summary

Problems solved by technology

In addition to the same advantages as the double-fed power generation system, the brushless doubly-fed wind power generation system and the doubly-fed power generation system, the motor rotor is a cage structure, eliminating the need for collector rings and brushes, reducing the cost of the motor and improving the operating reliability of the system. However, the design theory of the brushless doubly-fed wind power system motor body is relatively complicated, difficult to manufacture, and the technology is relatively immature. It is still in the experimental research stage and has not been applied on a large scale. The stator of the reluctance generator is equipped with concentrated windings, without rotor windings, that is, without independent excitation windings. The system makes the stator windings work in the excitation and power generation operating states through time-sharing control. Therefore, the design of the controller of the system is relatively complicated and needs further research. It can be seen that the permanent magnet wind power generation system has broad development prospects due to its significant advantages in the field of large-capacity wind power generation.

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