风力发电机传动系统的优化设计.doc

风力发电机传动系统的优化设计 摘 要：风力发电机的风轮在风中只有20转/分的转速，无法满足发电机每分钟上千转转速的要求，因此在传动过程中需要设置增速箱增速来达到发电机发电的速度要求。增速箱是保证风机高可靠性、易维护性及经济性的重要部件。风力发电机传动系统需要增速箱能够实现重量轻，体积小，效率高等条件。目前所有传动方案中最能实现这些要求的传动技术便是行星齿轮传动系统。因此风力发电机增速箱常采用行星齿轮传动。本论文的研究对象便是一级双联行星传动加一级定轴传动组合。这次设计目标以1.5MW风力发电机增速箱为优化对象，主要工作有分析其结构形式、传动比的优化设计并利用Matlab求解最优值，最后根据优化结果对各部件进行设计，并写出增速速箱的设计说明书。 关键词: 风力发电机传动系统，增速箱，行星齿轮传动，优化 Optimization Design Of Wind Power Transmission System Abstract：The breeze round of the wind driver generator twirls at only 20 a RPM speed in the wind, which fails to meet the requirement of the wind generator’s speed of one thousands RPM . As a result, a speed increasing box is needed to be installed to need the speed requirement of the driver generator. Speed increasing box is an important component to guarantee the wind generators high–reliability maintainability and economical efficiency. Speed increasing box need to achieve light weight, small size and higher efficiency in wind power transmission system. At present the most appropriate one among all the transmission plans is the planetary gear transmission system. Therefore, the wind increasing box usually uses the planetary gear transmission. This paper focuses on two fixed axis gear transmission and a duplex planetary gear transmission combining with a fixed axis gear transmission. This design aims at optimizing the 1.5MW wind generator speed increasing box, whose main work is to analyze its structural models, the optimal design of the transmission ratio and use Matlab to work out the optimal value. The last step is to design the various components in accordance with the optimal result，and write the design instructions of the speed increasing box. Keys: wind power transmission system, speed increasing box, planetary gear transmission, optimization 目 录 1绪论 1 1.1本文研究的背景和意义 1 1.2 国内外的研究和发展现状 2 1.3 风力发电机发电原理 3 1.4 行星齿轮传动的优点 4 1.5 本文研究的主要内容 5 2 传动方案选型 7 2.1 选取传动类型和传动简图 7 2.2 由已知条件推导得出的确定条件 8 3 传动比的优化设计 9 3.1 优化设计方法概述 9 3.2 优化设计目标函数的建立 9 3.3 优化设计约束条件的建立 10 3.3.