风力发电机偏航系统控制【毕业论文，绝对精品】.docVIP

风力发电机偏航系统控制 摘 要关键词： Wind turbine yaw control system Abstract Energy, the environment is the development of human survival and the urgency of the problem to be solved. Wind power as a new source of energy for sustainable development, not only can save conventional energy sources, and reducing environmental pollution, good economic and social benefits, ever-increasing importance attached. As the wind with a low energy density, random and non-stability characteristics of wind turbine is complex and ever-changing amount of nonlinear uncertain systems, therefore, the control unit technology is the key to safe and efficient operation. Yaw control system as a horizontal axis wind turbine control system for an important part of. The wind turbine yaw control system is divided into two categories: passive and active yaw wind wind systems. In this paper, the design is based on large-scale wind turbine anemometer, wind vane, such as sensor data, on the wind, braking, and determine the starting gate opening to synchronous speed for some time, and network operations to begin power generation. In this paper, the wind turbine yaw control mechanism, drive mechanism, based on the use of single-chip PLC as the main control unit, designed for wind turbine yaw control system. Systems based on wind direction, wind speed data collected by sensors, logic control to take the initiative on the wind, to achieve controllability of the wind process. Papers are given based on the wind direction, wind speed sensor yaw control system hardware and software design. Key words: Wind turbine ；Wind vane；Yaw control system；Drive mechanism 目 录 摘 要 I Abstract II 第一章 概述 1 1.1 课题的背景和意义 1 1.2 国外风力发电的发展 3 1.2.1 世界风电资源的开发与利用 3 1.2.2 世界风力发电现状 3 1.2.3 世界风电发展最快的地区 6 1.3 国内风力发电的发展 9 1.4 风电发展的展望 12 第二章 风力发电机组系统构成及功能简介 14 2.1 传统风力发电机 14 2.1.1 笼型异步发电机 14 2.1.2 绕线式异步发电机 14 2.2 现代风机 15 2.3 风力发电的原理 16 2.4 风力发电机系统组成部分简介 18 2.4.1 风力机桨叶系统 18 2.4.2 风力机齿轮箱系统 19 2.4.3 发电机系统 20 2.4.4 偏航系统 21 2.4.5 解缆装置 21 2.4.6 刹车系统 22 2.4