文档介绍：安徽工业大学
毕业设计(论文)
基于组态王风力发电偏航系统的研究
年级: 电子 092班
专业: 电子信息工程
二零壹叁年六月
摘要
在某种意义上讲,人类社会的发展离不开优质能源的出现和先进能源技术的使用。在当今世界,能源的发展,能源和环境,是全世界、全人类共同关心的话题,也是我国社会发展的重要问题。风能作为一种可持续发展的新能源,不仅可以节约常规能源,而且减少环境污染,具有较好的经济效益和社会效益,越来越受到各国的重视。
由于风能具有能量密度低、随机性和不稳定性等特点,风力发电机组是复杂多变量非线性不确定系统,因此,控制技术是机组安全高效运行的关键。偏航控制系统成为水平轴风力发电机组控制系统的重要组成部分。风力发电机组的偏航控制系统,主要分为两大类:被动迎风偏航系统和主动迎风系统。前者多用于小型的独立风力发电系统,由尾舵控制,风向改变时,被动对风。后者则多用大型并网型风力发电系统,由位于下风向的风向标发出的信号进行主动对风控制。
本文在介绍风力机的偏航控制机构、驱动机构的基础上,采用PLC作为主控单元,设计了风电机组的偏航控制系统。系统根据风向、风速传感器采集的数据,采取逻辑控制主动对风,实现了对风过程可控。
关键词:风力发电机;风向标;偏航控制系统;驱动机构
Abstract
In some sense, the development of human society cannot be separated from the emergence of high-quality energy and advanced energy technologies. In today's world, energy development, energy and the environment, the world, mankind'mon topic of concern, but also the important issue of China's social development. Wind energy as a sustainable development of the new energy, not only can save conventional energy sources, and reducing environmental pollution, good economic and social benefits, ever-increasing importance attached.
As wind energy has low energy density, randomness and non-stability characteristics of wind turbine plex and ever-changing amount of nonlinear uncertain systems, therefore, the control unit technology is the key to safe and efficient operation. Yaw control system es horizontal axis wind turbine control system is an ponent. The wind turbine yaw control system is divided into two categories: passive and active yaw wind wind systems. The former is mostly used for small independent wind power generation system, controlled by the rudder, the wind changes, the passive to the wind. The latter is more of a large-scale grid-connected wind power generation system consisting of the vane located downwind signals for active yaw control.
This paper describes the wind turbine yaw control mechanism, the drive mechanism, based on the use of PLC as the master unit, the design of wind turbine yaw control system. Sy