大型风力机变桨距加载系统流量补偿方法研究  

Research on flow compensation method for variable pitch loading system of large wind turbine

作　　者：甄亮[1] 党坤 程明杰[1] 方占萍[1] 李玉宏[1] Zhen Liang;Dang Kun;Cheng Mingjie;Fang Zhanping;Li Yuhong(Gansu Key Laboratory of Solar Power Generation System Project,Jiuquan Vocational and Technical College,Jiuquan 735000,China)

机构地区：[1]酒泉职业技术学院甘肃省太阳能发电系统重点实验室,甘肃酒泉735000

出　　处：《可再生能源》2021年第8期1057-1062,共6页Renewable Energy Resources

基　　金：国家自然科学基金项目(51365028);甘肃省高等学校产业支撑引导项目(2019C-20);甘肃省新能源职教集团研究项目(XNY-20A003)。

摘　　要：对于大型风力机变桨距加载系统,由于变桨距负载位置的扰动产生了流量波动,文章对此进行了研究。采用压力伺服阀和流量伺服阀并联结构,补偿了产生的强迫流量,从而减小了加载系统产生的多余力。通过MATLAB仿真,在加载频率增大到10 Hz时,产生的多余力小于给定输入的10%,多余力的抑制效果明显,满足动态加载系统所要求的性能指标。仿真结果表明,采用双阀并联结构有效地补偿了流量波动,抑制了加载系统产生的多余力。In this paper,it is aimed at the variable-pitch loading system of large wind turbines,and studied the positional disturbance of the variable-pitch load the fluctuation of raw flow.It proposed a structure that uses a pressure servo valve and a flow servo valve in parallel,and compensated for flow fluctuations caused by pitch position disturbance,thereby reducing the excess force generated by the loading system.Through MATLAB simulation,when the loading frequency is increased to 10 Hz,the excess force generated is less than 10%of the given input,the suppression effect of excess force is obvious,it meeted the performance indicators required by the dynamic loading system.The results show,the dual-valve parallel structure effectively compensated for flow fluctuations,and suppressed the excess force generated by the loading system.

关 键 词：大型风力机 加载系统 双阀并联 多余力抑制 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]