风电机组塔架的脉动风速时程模拟

摘要

In this paper, an autoregressive model(AR model) is used to simulate wind speed time series. e spectrum of simulated wind speed time series is found in agreement with the target spectrum, Davenport wind speed spectrum. Samples of the uctuating wind load on the nodes of a structure are obtained. Using the WAWS, the article builds an AR model to calculate the model order and edit a simulation program. rough the analysis on some wind turbines tower, the feasibility and e ciency of this simulation model is veri ed.%　　本文简述了谐波合成法中的自回归模型(AR)模拟出给定风速功率谱的风速时程序列，并验证其与目标谱(Davenport谱)的一致性，从而得到作用在各节点的脉动风荷载时程样本的方法。本文采用谐波合成法，建立了脉动风速时程的 AR 模型，编辑出脉动风速时程模拟程序，并对某风电机组塔架进行脉动时程分析，验证了该脉动风速时程模拟的可行性与有效性。