Wind power farm group layout method

Abstract

The invention relates to a wind power farm group layout method comprising the following steps of: (1) arranging m*n fans of the same type into a rectangle from an inlet to an outlet of a wind power farm; (2) respectively determining the array pitch and the row pitch of the m*n fans to be aD and bD; (3) determining modeling conditions; (4) modeling, particularly, firstly establishing a momentum absorption model in the wind power farm according to momentum conservation; and secondly establishing a momentum compensation model at the lower course of the wind power farm according to the momentum conservation; and (5) solving the model, particularly, solving the length L of a wake flow of the wind power farm at the upper course by linking the momentum absorption model in the wind power farm with the momentum compensation model at lower course of the wind power farm, wherein the L is the farm space between the wind power farm at the upper course and the wind power farm at the lower course inwind power farm group layout, namely the loss distance of the wake flow of the wind power farm. With the adoption of the wind power farm group layout method, the land utilization efficiency and the generating efficiency of the wind power farm at the lower course can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a layout method of a wind farm group. Background technique [0002] The country vigorously develops wind energy resources. With the development and construction of large-scale wind farms, a reasonable layout design plan for wind farms is needed to guide the actual construction. In the construction of wind farm groups, if the distance between wind farms is too small, the upstream wind farm will have a greater impact on the output of downstream wind farms. Under the shielding effect of upstream wind farms, the power generation capacity of downstream wind farms will be greatly reduced; If the distance between wind farms is too large, it will reduce land utilization and increase infrastructure and management costs. [0003] At present, there are only theories and methods for the layout of single machines in the world, but with the planning and construction of large-scale wind far...

AI Technical Summary

Problems solved by technology

In the construction of wind farm groups, if the distance between wind farms is too small, the upstream wind farm will have a greater impact on the output of downstream wind farms, and under the shielding effect of upstream wind farms, the power generation capacity of downstream wind farms will be greatly reduced; If the distance between wind farms is too large, it will reduce land utilization and increase infrastructure and management costs

[0003] At present, there are only theories and methods for the layout of single machines in the world, but with the planning and construction of large-scale wind farms, the interaction of wake flow between upstream and downstream wind farms has become a very important issue in the design of wind farms. The layout of field groups has not yet determined the theory and method of the distance between groups

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