风力机大型化发展中的总体设计技术

简单介绍当前风能利用的发展，分析风电技术发展的趋势和主要特点；主要讨论风机大型化、柔性化等趋势引起的大型风机总体设计所面临的主要问题，总体设计技术是涉及气动、气动弹性、结构设计等多个学科、多方面的综合性问题，直接决定着大型柔性风机的性能、可靠性和寿命。本文主要分析了攻克总体设计难题所必需优先解决的风力机气动弹性载荷计算、气动弹性稳定性等问题。同时简要阐述了发展海上风机需要优先解决的相关技术问题，指出海上大型风力机分析首先需要着重考虑风—波联合作用下的机组气弹分析问题和考虑到近海风力机桩基特性的波浪载荷问题。

The General Design Technology of Large-Scale Wind Turbines

The current development of wind energy utilization is briefly discussed. The tendency and characteristics of the development of wind energy technology are analyzed. Our focus in this paper is mainly on the general design technology of large-scale flexible wind turbines. The general design technology which involves aerodynamics, aeroelasticity, structural design and other related disciplines, is a comprehensive issue and has a crucial influence on performance, reliability and working lift of wind turbines. In this paper, the aeroelastic loads calculation, aeroelastic stability and other related issues which are the main challenges of the general design of large-scale wind turbines, are systematically analyzed. In addition, the related technical issues for the further development of offshore wind turbine are also discussed. Apart from the aeroelastic analysis of flexible wind turbine sets under the united loads from wind and wave, the wave load model for the pile foundation of offshore sets should be firstly investigated for the large-scale offshore wind turbines.