该系统建立在同步旋转坐标系下，数学模型较为简单。
The proposed system is constructed in a synchronously rotating reference frame and is very simple.
事实上，即使旋转坐标系到某个平面，还是可以做到一样的东西。
In fact, if I rotated my coordinates to fit with any other plane, I could still do the same things.
在同步旋转坐标系下，建立了直线感应电动机的矢量控制数学模型。
The vector control mathematical model of linear induction motor is established under the synchronization reference frame.
研究旋转型超声电动机在线性坐标平台和旋转坐标转台中的应用技术。
Researches on the technology of application ultrasonic motors in linear coordinate slider and rotary coordinate rotor.
根据电梯运行特点，首先提出基于假定旋转坐标法的转子位置检测方法。
According to the characteristics of elevator traction system, the rotor position detection based on hypothetical rotate frame strategy is introduced.
利用旋转坐标系的方法，计算了各向异性铁磁体的磁化强度和共振频率。
The magnetization and the resonant frequency of the anisotropic ferromagnet are calculated by means of rotation of the coordinate system.
在第②步中，采用旋转坐标轴的方法来计算非结构网格单元各边的通量。
In the gas evolution step, with the axis rotation, the flux through each side of the triangular element is obtained.
本文用旋转坐标系系法对二能级系统的在旋转磁场中的演化和几何相进行了研究。
In this paper we discussed the evolution of two states system and geometric phase in a rotating magnetic field by using the method of coordinate transformation.
介绍基于旋转型超声电动机的线性坐标平台和旋转坐标转台系统组成及其控制方式。
Introduces its makeup and control mode of linear coordinate slider and rotary coordinate rotor basing on rotary USM.
同时对传统正负序分量瞬时计算方法和正负序同步旋转坐标轴定向方法进行了改进。
The thesis also improved the method of the instantaneous power component computation and the synchronous coordinate orientation.
本文首先研究了交流励磁发电机的三相静止坐标系数学模型和两相旋转坐标系数学模型。
In this paper, the mathematical models of ACEG in static three-phase coordinates and in rotary two-phase coordinates are studied.
建立了三相异步电动机在旋转坐标系下的数学模型，论述了空间矢量脉宽调制技术原理。
The mathematical model of three-phase asynchronous motor in rotating coordinate system is established, and PWM technology of space vector is discussed.
在分析两相同步旋转坐标系下逆变器输出侧数学模型的基础上，提出一种新型闭环控制策略。
The proposed control strategy is developed through analyzing the mathematical model of the inverter output terminal under two-phase synchronous rotary coordinates.
该文以同步旋转坐标系模型为基础，设计了三相电压型PWM整流器的级联式非线性PI控制器。
This paper proposes a cascaded nonlinear PI controller for three-phase voltage source PWM rectifier, which is based on its model in synchronous reference frame.
在电压型PWM整流器的控制中，广泛采用在同步旋转坐标系下的直接电流控制方法和双闭环控制结构。
In the control of voltage source PWM rectifier, direct current control and dual close loop control structure ind-q synchronous reference frame are widely adopted.
根据裂纹曲轴运动的特点及工作过程中裂纹开闭的实际情况，提出在旋转坐标系下建立其非线性振动模型。
The breathing behavior of the crack and the motion characteristic of crankshaft under operating condition were studied, and a model of nonlinear motion was established in a rotating coordinate system.
旋翼阻抗由旋翼在固定坐标系中的运动方程得到，这个运动方程由旋翼旋转坐标系中的桨叶模态方程导出。
The rotor impedance is calculated from the rotor equations of motion in the fixed- coordinate system derived from the modal equations of blade in the rotating-coordinate system.
在研究叶轮机械转动部件非定常旋涡脱落频谱特性时，难以避免会遇到旋转坐标系向绝对坐标系转换的问题。
The problem of altering the rotating coordinate system to absolute coordinate system is often encountered when the frequency characteristics of unsteady vortex shedding in turbine engine is studied.
在分析了传统死区时间补偿方法的缺点之后，提出了适合于通用变频器的基于旋转坐标变换的死区时间补偿方法。
Based on the analysis of traditional compensation methods, a method compensating the dead-time in a synchronous rotating reference frame is proposed, which fits for general-purpose inverters.
为改善逆变器系统在严重不平衡负载情况下输出电压的对称性，文中提出一种新颖的控制策略——旋转坐标系下的PIR - P双环控制。
This paper presents a new method that PIR-P dual loop control based on rotating coordinates to improve the output voltage symmetry of inverter under the serious unbalanced load condition.
由于文件名和坐标绑定在一起，因此需要准确地将已旋转的图像块转换成适当的旋转后位置。
This development of a filename tied to a coordinate is required to accurately translate the rotated tiles to their proper post-rotation position.
在转换和旋转后点的三维绝对坐标。
3d absolute coordinates of the points after the shift and rotation.
接下来，旋转和恢复这个矩阵；然后，使用translate设置与当前坐标系统的偏移量(这是从之前旋转和转换的矩阵应用的)，并绘制一个红色椭圆。
Next, rotate and store this matrix; then, offset from the current coordinate system with translate (which is applied from the previously rotated and translated matrices), and draw a red ellipse.
重力探测器B也证实了“坐标系拖曳效应”，地球的旋转使时空产生扭曲。
The satellite also confirmed the frame-dragging effect, in which the rotating Earth twists the surrounding spacetime.
极坐标是关于r，θ的,用r，θ代替平面上一点的x，y坐标，是从原点到那一点的距离，，which，is，the，distance，from，the，origin，to，a，point，θ是由x轴逆时针旋转,而得到的夹角。
Remember that polar coordinates are about replacing x and y as coordinates for a point on a plane by instead r, r and theta,which is the angle measured counterclockwise from the positive x-axis.
如果您希望旋转已有的对象，那么您需要更新这个对象对应的坐标系统。
If you wanted to rotate the object in place, you would need to update the coordinate system to account for this.
而旋度度量了，运动中的旋转情况，这跟坐标系的选择有关。
And when I say that the curl measures the rotation in a motion, well, that depends on which coordinates you use.
而旋度度量了，运动中的旋转情况，这跟坐标系的选择有关。
And when I say that the curl measures the rotation in a motion, well, that depends on which coordinates you use.
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