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1)  Varying pitch propeller
变距桨
2)  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。
3)  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。
4)  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.
Multimode variable pitch control design for wind turbine system
风力发电机组的多模变桨距控制
3.
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。
5)  Variable-pitch
变桨距
1.
The variable-pitch wind turbine through the control of the blade\'s pitch, to ensure a constant power output, which has high power generation efficiency and superior performance, has therefore become the tendance of the wind turbine.
变桨距风力发电机组通过对桨叶的桨距角控制保证系统输出功率恒定,具有较高的发电效率和优越的性能,因此成为风力发电机组的主要发展方向。
2.
A hardware-in-loop simulative platform for variable-speed variable-pitch wind generator systems(VSVP-WGSs) is presented.
为在实验室条件下对风力发电的相关技术进行研究,设计了一种通用的变速变桨距风力发电机组半实物仿真平台。
6)  variable speed-variable pitch
变速-变桨距
补充资料:变距双锥螺旋卸料机
分子式:
CAS号:

性质:贮仓螺旋御料机的一种。它由两个变径变矩的锥形螺旋叶片组成。物料的进入口在贮仓下面,由于螺旋的作用(有搅拌),能防止物料架桥或堵塞。见螺旋给料机。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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