According to the multiple time-scale of wind speed, the nonlinear mechanical model is built for WECS.
根据风速的多时间尺度特性，建立风能转换系统非线性机理模型。
A wind energy conversion system (WECS) model is presented, including wind turbine and brushless doubly-fed machine working as a generator.
本文首先对包括风力机、无刷双馈发电机的风力发电系统进行建模，并通过同步坐标变换分解为两个解耦子系统。
This thesis mainly discusses direct-driven permanent magnet synchronous wind energy conversion system (WECS) used back-to-back PWM converter.
本文以双pwm变换器控制的直驱式永磁同步风力发电系统为研究对象。
On the basis of blade airfoil curve fitted with triple spline function and the practical process, a kind of program design method is offered to display the section of WECS blades and its structure.
根据风力机叶片设计的实际过程，在三次参数样条曲线拟合叶片翼型曲线的基础上，提出了一种在计算机上能立体显示叶片截面及其结构的程序设计方法。
On the basis of blade airfoil curve fitted with triple spline function and the practical process, a kind of program design method is offered to display the section of WECS blades and its structure.
根据风力机叶片设计的实际过程，在三次参数样条曲线拟合叶片翼型曲线的基础上，提出了一种在计算机上能立体显示叶片截面及其结构的程序设计方法。
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