风力发电机英文介绍.ppt

North China Electric Power University 风力发电机组 Wind turbine generator —— 石家庄铁道大学 机械工程学院 姜 凯 之 KEVIN 学Main contents 1.Application 应用 2.Effcieney and the process of its usage影响和使用步骤 3.What were the issues dealt with while it was being built?它建造时遇到的问题？ 4.Benefits and the negative effects on the users对使用者好处和弊端 5.How did it or will it change people`s lives and the world? 它怎么改变人们生活和世界？ Background and Significance With the consumption of fossil fuels and their serious impact on the environment,the wind energy with the advantages of clean and can be recycled for use is growing importance to many countries and they are actively developing and utilizing its wind resource, China is no exception. The manufacture and maintenance of wind turbines will also become an emerging manufacturing industry in the future. The applicability of small wind turbines is very broad in China. Independent and efficient small wind turbine power generation is realistic for Chinas rural wind energy resource-rich areas, or national electricity grid areas not covered. Introduction 轮毂 齿轮箱 油冷却器 发电机 变桨驱动 旋转罩 机舱 低速轴 热交换器 控制箱 旋转接头 支撑轴承 偏航驱动 机舱座 通风 隔离减震 Structure diagram of wind turbine 一、机组的总体结构 First,the overall structure of the unit Introduction 控 制 系 统 风轮 wind wheel 增速器 speed increaser 发电机 dynamo 主继电器 main relay 主开关 master switch 熔断器 Fuse 变压器 transformer 晶闸管 电网 electrified wire netting 风wind 变桨 Pitch 风速 转速 并网 功率 无功补偿 风 wind 定桨：1.5-2.5叶尖扰流器起脱网停机气动刹车，一般采用双速发电机来提高效率。 变桨：随风速改变攻角，超过额定风速保持额定功率。 设计风轮转速：20-30r/min，通过增速器与发电机匹配。 采用晶闸管软切入并网，并网容易，扰动小。 含微处理器的控制系统。 Introduction 二、风力发电机组的控制技术 Two, wind turbine control technology Fixed pitch stall type units to solve the problems of grid connected wind turbines and the running safety and reliability problems, the soft cut in technology, aerodynamic braking technology, yaw and pitch angle and automatic untwisting technology. The power frequency fixed decision speed, simplify the control and servo drive system. The full blade variab