2、件系统。最后在国外某知名风电公司风力发电机组上做了实验,验证了将该变桨距控制器可以在变桨距风力机上安全、稳定运行的。 关键词:变桨距;风力发电机;可编程控制器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 (
3、PLC) is used in the variable pitch well-known foreign wind power companies wind turbine as pitch controller. It has many merits,such as flexible control,simple program and strong anti-interference in practice.In this paper the hydraulic variable pitch system was introduced and the pitch controlled
4、 software was designed. Experiment was done on well-known foreign wind power companies Wind Turbine, the experiment results shown that the controller can operate staidly and safely.Key words:Variable pitch, Wind turbine generator, PLC1 引言 随着风电技术的不断成熟与发展,变桨距风力发电机的优越性显得更加突出:既能提高风力机运行的可靠性,又能保证高的风能利用