Determination method and system for design loads of basic ring of foundation of wind turbine generator

Abstract

The invention provides a determination method and system for design loads of a basic ring of a foundation of a wind turbine generator. The determination method comprises the following steps of establishing a simulation model of the wind turbine generator, conducting simulating calculation on the simulation model of the wind turbine generator according to design demands and obtaining the time series design loads of the tower bottom of the wind turbine generator under extreme conditions; calculating the dominant design loads of the transient design loads and the dominant design loads of the continuous design loads of the basic ring of the foundation of the wind turbine generator, and using the larger dominant design loads as the extreme design loads of the basic ring of the foundation of thewind turbine generator. According to the provided technical scheme, various factors affecting the design loads of the basic ring of the foundation of the wind turbine generator are taken into account, and the influence of the non-dominant design loads on the design loads can be effectively avoided, so that the design loads are safer and more reliable.

Description

technical field [0001] The invention belongs to the technical field of wind power generation equipment, and in particular relates to a method and a system for determining the design load of a foundation ring of a wind power unit foundation. Background technique [0002] With the increase in the installed capacity of wind turbines in recent years, the diameter of wind turbine rotors has gradually increased, and the height of the hub has also gradually increased. The amount of foundation used in wind turbines has also increased sharply, and its proportion in the total investment of wind turbines has also increased. Increase. [0003] For the base ring wind turbine foundation, the design load of the tower and main engine is transmitted to the foundation through the base ring. As the steel part pre-embedded in the foundation concrete, the foundation ring is the transition component connecting the foundation and the steel tower, and also the key construction for the connection b...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for determining the design load of the foundation ring of a wind turbine, which is used to solve the problem of calculation due to incomplete consideration of factors when calculating the design load of the foundation ring of a wind turbine in the prior art. The problem that there is a large error between the result and the actual result

Images