【摘要】 变桨距风力发电机比定桨距风力发电机具有更好的风能捕捉特性,现代的大型风力发电机大多采用变桨距控制。针对Zond—40液压变桨距风力机,采用可编程序控制器(PLC)作为风力发电机的变桨距控制器。这种变桨控制器具有控制方式灵活、编程简单、抗干扰能力强等特点。介绍了液压变桨距系统的工作原理,设计了变桨控制器的软件系统。最后在Zond—40风力发电机组上做了实验,验证了该变桨距控制器可以在变桨距风力机上安全、稳定运行。更多还原

【Abstract】 The variable pitch wind turbine has better wind power capture capacity than fixed pitch wind turbine, so most of modern large scale wind turbines are variable pitch wind turbine. A Programmer Logic Controller (PLC) is used in the variable pitch Zond—40 wind turbine as pitch controller. It has many merits,su ch as flexible control,simple program and strong anti-interference in practice. In this paper the hydraulic variable pitch system was introduced and the pitch c ontrolled software was designed. Experiment was done on Zond-40 Wind Turbine, th e experiment results show that the controller can operate staidly and safely.更多还原