模糊前馈与模糊PID结合的风力发电机组变桨距控制.pdf

第 30 卷 第 8 期 中 国 电 机 工 程 学 报 Vol.30 No.8 Mar.15, 2010 2010 年 3 月 15 日 Proceedings of the CSEE ©2010 Chin.Soc.for Elec.Eng. 123 文章编号：0258-8013 (2010) 08-0123-06 中图分类号：TP 273 文献标志码：A 学科分类号：470·20 模糊前馈与模糊PID 结合的 风力发电机组变桨距控制 郭鹏 (华北电力大学自动化系，北京市 昌平区 102206) Variable Pitch Control of Wind Turbine Generator Combined With Fuzzy Feed Forward and Fuzzy PID Controller Guo Peng (Department of Automation, North China Electric Power University, Changping District, Beijing 102206, China) ABSTRACT: Large-scale variable pitch wind turbine 不同风速下均有较好的控制结果，而模糊前馈控制器则能够 generator usually uses the PID controller to maintain the output 根据风电机组的桨叶气动特性，在额定风速以上的不同风速 power unchanged above the rated wind speed. One set of PID 段，根据风速给出不同的适当的前馈桨距角，实现动态前馈 parameters can hardly achieve satisfactory control performance 补偿，提高控制系统的响应速度。对一个 300 kW 的变桨距 because the range between rated wind speed and cut out wind 风电机组的仿真表明，该方法在额定风速以上的不同风速段 speed is very large. This paper firstly analyzed the 都能够有效地减小系统的超调量，缩短调节时间，具有较为 shortcomings of PID controller, then a new pitch control 满意的控制效果。 method combined with fuzzy feed forward and fuzzy PID 关键词：变桨距控制系统；模糊 PID 控制器；模糊前馈控 controller was proposed. The fuzzy PID controller can produce 制器；气动特性 a better control result than PID controller. With the analysis of the aerodynamic characteristics of the blade, the fuzzy feed 0 引言 forward controller can give different feed forward pitch angles