1)  variable pitch
变桨距
1.
Research on Hydraulic Variable Pitch System of Megawatt Wind Turbine;
兆瓦级风力发电机组液压变桨距系统研究
2.
Through analyzing the aerodynamic performance and the power control modes of variable pitch or fixed pitch blade,and with the actual situation of the wind power plants,this paper finds the problems existing in the wind turbine s erection and operation,and advances some solving methods.
通过对变桨距及定桨距叶片气动性能与功率控制方式的分析,结合风电场的实际情况,寻找出了风力机在安装运行中的问题,并提出了解决办法。
3.
A neural network controller to control major variable pitch wind turbine generator is devised in this paper.
设计了一个神经网络控制器,用来控制变桨距大型风力发电机组,为研究风力发电机组的智能控制提供了一种新方法。
2)  variable propeller pitch
变桨距
1.
PID fuzzy control of variable propeller pitch in direct-drive wind power generation;
直驱风力发电模糊PID变桨距控制
2.
According to the controlling requirement of megawatt wind driven generator with variable propeller pitch of horizon axis,the hydraulic control system of a variable propeller pitch is designed.
针对兆瓦级水平轴变桨距风力发电机的控制要求,设计了变桨距液压控制系统。
3.
Aiming at requirement of control for megawatt wind-driven generator with variable propeller pitch of horizontal axis, a hydraulic control system is designed.
针对兆瓦级水平轴变桨距风力发电机的控制要求,设计了液压控制系统。
3)  adjustable pitch
变桨距
1.
Large-scale variable speed constant frequency wind generation system usually adopts adjustable pitch control technology in order to ensure output power above the rated power and safety of the system.
大型变速恒频风力发电系统通常采用变桨距控制技术,保证额定功率点以上输出功率平稳和机组安全,但风机的强非线性和较大的转动惯量导致了变桨距控制的困难,单纯的模糊控制和PID控制都不能取得良好的控制效果。
2.
The numerical simulating the 3D internal and external mixed flow fields of adjustable pitch horizontal axis wind turbine on conditions of the dynamic parameters was worked out.
利用雷诺平均Navier Stokes方程 ,采用高数值稳定性的代数Baldwin Lomax湍流模型 ,模拟可变桨距水平轴风力涡轮在给定工况下全三维混合型流场 ,比较了计算结果与风洞试验结果 ,探讨了桨叶载荷分布原因 ,分析了风力涡轮流场主要气动特性 ,指出了提高风力涡轮气动性能优化方向。
4)  adjustable-pitch
变桨距
1.
Sliding model control and its application to adjustable-pitch wind power system;
变桨距风力发电系统的滑模变结构控制
5)  pitch control
变桨距
1.
Then the piecewise PID pitch-controlled algorithm and the control strategy for transition between variable speed con- stant frequency(VSCF)and pitch control were used in the test-bed.
针对风力机功率控制的重要性,设计了电液比例变桨距执行机构,并结合风力机设计软件Bladed组建成半物理仿真试验台。
6)  pitch control
变桨距控制
1.
The control strategies and algorithms for variable speed pitch controlled wind turbines were presented in this pa- per.
讨论了额定风速以下的变速运行控制和额定风速以上的变桨距控制以及变速与变桨距两种控制策略的相互耦合关系;分析了风电机组主要部件包括叶轮、传动系统、塔架的各阶振动模态以及它们之间的相互影响力;提出了转矩控制对传动系统扭转振动和变桨距控制对塔架前后振动的影响力及控制方案;应用BLADED和MAT- LAB软件对主要控制环节进行设计及参数调整,并对机组的控制效果进行仿真。
2.
A disturbance accommodating Linear Quadratic Regulator(LQR)method was applied in pitch control system to achieve good performance.
为了获得更好的变桨距控制效果,将扰动校正LQR(Linear Quadratic Regulator)应用到风电机组变桨距控制中,该方法通过设计扰动状态观测器估计出作为扰动量的风速,在输入量中加入一个反馈量来消除风速产生的扰动影响,然后根据LQR控制理论,计算出状态反馈矩阵。
参考词条
补充资料：距来
1.强弩名。
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