Sector division method and system for a wind turbine

Abstract

The present application provides a method and system for sector division of a wind turbine, through which wind resources are simulated and calculated to obtain wind condition parameters at each fan in a wind farm; the wind condition parameters include at least a turbulence intensity parameter and a wind shear index. parameters and inflow angle parameters; perform sectoral analysis on the wind condition parameters at each of the fans, and determine the problem-prone sectors where the wind parameters at each of the fans exceed the safety limit value of the fan; the The problem-prone sectors include at least the sector where the turbulence intensity exceeds the standard, the sector where the wind shear index exceeds the standard, and the sector where the inflow angle exceeds the standard. In this application, sector-by-sector analysis is carried out through the wind condition parameters to determine the problem-prone sectors that exceed the safety limit of the fan, and then the special wind conditions of each fan in the wind farm can be found according to the problem-prone sectors. District management provides an accurate basis.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a sector division method and system for a wind turbine. Background technique [0002] In the field of wind power generation, when sector management is performed, sector division is required. [0003] In the prior art, in the calculation and analysis of wind energy resource assessment and micro-site selection of wind farms, long-term corrections are made to wind speed data, and at the same time, wind directions are divided into sectors, and then the main wind direction or main wind energy direction is determined. In terms of sector management for the unit, sector management will also be performed according to the turbulence intensity at the machine station point where the unit is located. [0004] However, wind farms often have some problems such as excessive fan vibration and excessive overspeed shutdowns. This is often caused by the special wind conditions at the ...

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Problems solved by technology

[0004] However, wind farms often have some problems such as excessive fan vibration and excessive overspeed shutdowns. This is often caused by the special wind conditions at the location where the unit is located, but the existing sector division methods cannot accurately analyze Special wind conditions that cause fan problems cannot provide accurate basis for sector management

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