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.
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.
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.
提出了在同步旋转坐标系下的电压源型有源电力滤波器简单控制方法。
A simple control method of voltage source shunt active power filters is proposed in the synchronous rotating reference orthogonal coordinate system.
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.
DSTATCOM的控制系统采用基于旋转坐标系的直接电流控制方法。
The direct current control based on synchronous reference frame coordinates is employed in DSTATCOM control system.
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.
介绍了一种基于同步旋转坐标系的以dsp为核心的数模混合型谐波检测设计方案。
This paper presents an improved high accuracy harmonic detection system based on DSP for active power filter.
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.
建立了基于FESS的DVR变换的数学模型，设计了同步旋转坐标系下的双矢量控制器。
The state space model of the DVR with the FESS is established, the double vector control algorithm in dq synchronous reference frame is designed.
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.
首先，介绍双馈发电机的基本工作原理，建立在两相同步旋转坐标系下双馈发电机的数学模型。
First of all, the theory of double-fed induction generator is introduced. Mathematical model of double-fed induction generator in the two-phase synchronous rotating coordinate system is established.
介绍了永磁同步电机的结构和模型，并在静止坐标系和旋转坐标系中建立数学模型和状态方程。
The structure and permanent magnet synchronous motor model is presented, and then the mathematical model and state equation are structured based on the stationary and rotating coordinate system.
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.
旋翼阻抗由旋翼在固定价值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.
在同步旋转坐标系下，包含LC低通滤波器的VSC-HVDC系统表现出强耦合、非线性特性，不利于控制器设计。
The strong coupling and nonlinearity of VSC-HVDC system with the LC filter in the synchronous rotating frame brings difficulty to the design of its controller.
通过选择磁场同步旋转坐标系下定子电流和永磁体磁链为状态变量，构建估算转子永磁体磁链幅值和方向的卡尔曼滤波器。
To estimate flux magnitude and direction, a Kalman filter is built by using stator current and PM flux as state variables under magnetic field oriented coordinate.
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.
提出了采用旋转坐标系的方法，以保持叶型头部原有的形状及流道内流线的相对位置不变，经验证得到了很好的结果，可以应用于大多数轴流压气机的计算与分析。
A method is proposed, using rotating coordinate to keep the head with leaf-like shape and to hold the relative position of streamlines in flow channel. The method is effectively tested and can...
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.
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.
如果物体通过几何变换而被放置在世界坐标系中，比如通过平移和旋转，那么视图跟踪他在世界坐标系中位置变换的轨迹可能会是一个艰难的工作。
If the object is positioned in the world through geometric transformations, such as translations and rotations, then keeping track of its position in world coordinates can be a hard task.
实现卧式加工中心机床在零件加工过程中，工作台任意角度旋转后，工件坐标系原点得到自动补偿与设定。
During machining on the horizontal machining center, the automatic compensate and setting of the workpiece coordinate origin is performed after the workbench's arbitrary Angle revolving.
实现卧式加工中心机床在零件加工过程中，工作台任意角度旋转后，工件坐标系原点得到自动补偿与设定。
During machining on the horizontal machining center, the automatic compensate and setting of the workpiece coordinate origin is performed after the workbench's arbitrary Angle revolving.
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