风力发电机组液压变桨距控制系统建模及研究  

Modeling and Research on Hydraulic Variable Pitch Control System of Wind Power Generator

作　　者：贾瀚方 胡建军 高伟政[3] 

机构地区：[1]新乡新航集团116厂,河南新乡453000 [2]徐工集团徐州液压件厂,江苏徐州221004 [3]太原科技大学,山西太原030024

出　　处：《机床与液压》2011年第2期85-86,89,共3页Machine Tool & Hydraulics

摘　　要：选用电液比例阀作为变桨距控制系统的主阀,对比例阀的流量方程、液压缸的流量连续方程以及系统的动力平衡方程等按实际情况进行适当的简化,摒弃以往建模时引入的负载压力和负载流量,建立变桨距系统在开、关桨时的相对精确的数学模型。A electro-hydraulic proportional valve was selected as main valve for variable pitch control system. According to the actual situation, an appropriate simplifications were conducted for the flow equation of proportional valve, hydraulic cylinder flow continuity equation and the system dynamic equilibrium equation. Load pressure and load flow those were introduced to the mathematical model in the past were rejected. The relatively precise mathematical models were established during on/off time of oar in the variable pitch control system.

关 键 词：变桨距控制 比例阀 数学建模 

分 类 号：TH137.1[机械工程—机械制造及自动化]