低温条件下变桨距液压系统启动特性测量方法研究

Study of Starting Characteristics on Hydraulic System of the Variable-pitch Wind Turbine in Cold Condition

分析了低温环境对风机发电机组电液变桨距控制系统的影响,提出了测量低温条件下液压系统电机启动电流及液压缸空载启动摩擦力的方法,并介绍了检测原理和系统组成,该方法具有结构简单,测试精确,自动化程度高。

This paper analyses the influence of cold condition to the hydraulic cylinder on the variable-pitch wind turbine, at the same time, it provides some methods that help measuring the starting circuit and friction, the measuring method has simple structure, high measurement precision and high degree of automation.