Wind power generation method based on low-speed wind

Abstract

The invention discloses a wind power generation method based on low-speed wind. The method comprises the following steps that a wind power generation device is installed, a wind gathering device is installed, wind energy is gathered and conveyed, wind energy drives an impeller to rotate, and a generator generates power. The wind gathering device is installed at the air inlet of the wind power generation device, according to the Bernoulli theorem, in the non-sticky and non-heat-conduction steady movement of fluid, the total energy of the fluid of unit mass is kept unchanged along the same flowline, so that the flow speed of the low-speed wind in the wind gathering device is increased, and the effect of improving wind energy is achieved; the wind speed of the low-speed wind entering the airinlet of the wind power generation device is increased based on the funnelling theory, rotation of the impeller is more efficient, large-scale efficient power generation can be conveniently achievedin low-wind-speed areas such as roofs of high-rise buildings, and the problem that a traditional wind power generation method cannot continuously and stably output electric energy in a low-wind-speedenvironment is solved; and power supply stability of rear-end electric equipment is ensured to a certain degree, and wind energy development and utilization in a low-wind-speed area are met to a greatdegree.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a wind power generation method based on low-speed wind. Background technique [0002] Wind energy is the kinetic energy generated by air flow, which is a form of solar energy conversion. Due to the uneven heating of various parts of the earth's surface due to solar radiation, the pressure distribution in the atmosphere is unbalanced. Under the action of the horizontal pressure gradient, the air moves along the horizontal direction. Forming wind, wind energy is a renewable clean energy with large reserves and wide distribution, but its energy density is low and unstable. Under certain technical conditions, wind energy can be developed and utilized as an important energy source. China has rich wind energy resources, but due to the large span of latitude and longitude, the geographical environment between regions is also different, resulting in large differences in win...

AI Technical Summary

Problems solved by technology

[0002] Wind energy is the kinetic energy generated by air flow, which is a form of solar energy conversion. Due to the uneven heating of various parts of the earth's surface due to solar radiation, the pressure distribution in the atmosphere is unbalanced. Under the action of the horizontal pressure gradient, the air moves along the horizontal direction. Forming wind, wind energy is a renewable clean energy with large reserves and wide distribution, but its energy density is low and unstable. Under certain technical conditions, wind energy can be developed and utilized as an important energy source. China has rich wind energy resources, but due to the large span of latitude and longitude, the geographical environment between regions is also different, resulting in large differences in wind energy resources;

[0003] For areas with abundant wind energy resources and stable wind characteristics and prevailing wind direction, it is less difficult to utilize wind energy, and traditional wind power generation methods can meet the requirements. Hours, it is impossible to drive the fan blades of the wind power generation equipment to rotate, and if the wind is intermittent, it will also cause the electric energy of the generator of the wind power generation equipment to be unable to output continuously and stably, resulting in unstable power output. There is a problem of unstable power supply, so the traditional wind power generation method alone cannot satisfy the development and utilization of wind energy in low-wind areas. Therefore, the present invention proposes a wind power generation method based on low-speed wind to solve the problems existing in the prior art

Images