大型风力机变桨距加载系统多余力抑制方法研究  

Research on the Suppression Method of Excess Force Generated in Variable Pitch Loading System of Large Wind Turbine

作　　者：甄亮[1,2] 方占萍[1,2] 

机构地区：[1]酒泉职业技术学院新能源工程系,甘肃酒泉735000 [2]甘肃省太阳能发电系统工程重点实验室,甘肃酒泉735000

出　　处：《自动化仪表》2016年第11期31-34,共4页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(编号:51365028)

摘　　要：对大型风力机变桨距加载系统产生的多余力抑制方法进行了研究,提出了一个将变桨距位置系统等效为倒立单摆负载的方法以减小多余力。考虑到单摆负载的位置系统与加载系统之间的耦合关系,采用了双微分结构解耦补偿控制策略。Matlab仿真结果证明,采用双微分结构解耦补偿控制策略后,当加载频率达到10 Hz时,多余力从±22 N左右减小到±4 N左右,满足加载系统的性能指标。仿真结果表明了采用双微分结构解耦补偿控制策略抑制多余力的有效性。The suppression methods of excess force generated in variable pitch loading system of large wind turbine are researched, and toreduce the excess force,the method with which the variable pitch position system is equivalent to the inverted simple pendulum load is proposed.Considering about the coupling relationship between the position system of simple pendulum load and the loading system, the decouplingcompensation control strategy with double differential structure is adopted. The results of Matlab simulation prove that after adopting thedecoupling compensation control strategy with double differential structure,when the loading frequency reaches 10Hz,the excess force reducesfrom ±22 N to ±4 N around,this meets the performance index of loading system. The simulation result shows the effectiveness of such controlstrategy for suppressing excess force.

关 键 词：大型风力机 电液伺服系统 变桨距 传感器 PID控制 单摆负载 双微分结构 解耦补偿 

分 类 号：TH-3[机械工程] TP273.3[自动化与计算机技术—检测技术与自动化装置]