基于PLC的风力发电控制系统设计.docVIP

学号： 座机电话号码44 浙 江 大 学 毕业设计（论文） 题 目 基于PLC的风力发电控制系统设计 学 生 学 院 专业班级 校内指导教师 专业技术职务 校外指导老师 专业技术职务 二○ The Control System of Wind Power Based on PLC Abstract：In recent years, with the continuous development of the economy and people’s living standards continue to improve, in the scope of world petroleum, oil and coal these non-renewable resource consumption was significantly more than the environment can stand. Combustion power generation of pollutants generated also produced negative effect to the environment of the earth. However, the wind energy is a clean, renewable energy power generation, it has tremendous development potential and business activity in this area. With the progress of science and technology, computer and programmable control of the level of scientific research in ascension, for wind power control research provides a new way. In this paper, aiming at these characteristics of uncertainty and randomness wind energy, we can use Siemens programmable controller S7-200 to wind power control. The main contents include drawing the corresponding electrical schematic diagram and the flow chart, selecting the PLC and electrical components, turbine start-up control, yaw control, temperature control, transformer control and so on. In this paper, it gives detailed explanation of the control principle and the function of each module and control program. Finally, it needs testing and simulation, using of STEP7-Micro/WIN32 programming software for the PLC program debugging, simulation and online diagnosis and so on, so that the simulation results meet the design requirements. Key words：wind power generation; programmable controller; yaw; temperature control 目 录 摘 要 I 目 录 III 1 引言 1 1.1 选题背景与意义 1 1.2 国内外发展现状 2 1.2.1 国内发展状况 2 1.2.2 国外发展状况 3 1.3 主要内容及章节安排 4 2 风电机组组成与风能理论 6 2.1 风电机组组成部分介绍 6 2.1.1 风轮及其组件 6 2.1.2 机舱及其组件 7 2.1.3 塔架部件 8 2.1.4 控制系统 8 2.2 风能理论简介 9 2.2.1 风速和风能 9 2.3 本章小结 9 3 设计方案和电气元件选型 10 3.1 设计方案 10 3.1.1 系统整体设计 10 3.1.2 具体模块设计 11 3.2 I/O地址分配与电气元