查询词典 vector flux

In this paper a new speed sensor-less vector control system based on stator-flux-oriented is researched and analyzed.

本文对一种新型的基于定子磁链定向的无速度传感器矢量控制系统作了研究和分析。

Compared with Vector Control, the main advantage of DTC is that it directly controls flux and torque.

与矢量控制相比，直接转矩控制的主要优点是直接对电机的磁链和转矩进行控制。

Building of the operation rules of curl and divergence for vector field in R 3 space;2. Analysing by mathematics and the concepts of flux and curl , we can get the differential form of gauss s theorems in electrostatic field and ampere s cycle theorem in electrostatic field.

电动力学中的内容一般是从电磁学最基本的实验规律出发，由静电场中的库仑定律得到静电场的高斯定理和环路定理，利用通量与散度、环流与旋度的关系，得到静电场的高斯定理和坏路定理的微分形式。

This paper provided a control way based on magnetic-flux and double space vector for the synchronous motor.

摘 要：提出基于磁链参考矢量和双空间矢量调制的矩阵变换器在船用永磁同步电机控制中的策略。

It is shown from the preliminary discussions that the sea bottom friction vector is not opposite to the horizontal current flux vector.

初步讨论表明，海底摩擦矢量与水平流通量矢量并不在相反的方向上。

According to the principle of vector control used in an asynchronous motor, a simulation model of the asynchronous motor in electric vehicle and vector control system in rotor flux orientation was established with the help of Matlab/Simulink software.

根据异步电机矢量控制原理，建立了电动汽车用异步电机的仿真模型和转子磁场定向下的矢量控制系统模型，并在Matlab/Simulink软件环境下对其进行建模。

It was decided to replace an imprinting technology described in [1-5] with cross-magnetic inserts having a flux vector directed at 90 degrees to the primary magnetization vector of the stator and rollers.

这是决定取代印迹技术介绍[ 1-5 ]跨磁插入了磁通矢量针对90度的主要载体的磁化定子和压路机。

On the detailed analysis of PMSM DTC principle, the function of zero voltage vector and the choice method of voltage vector in EV driving are proposed. Restricted condition about stator flux linkage under DTC is analyzed.

在详细分析DTC应用于PMSM的基本原理基础上，研究了零电压矢量在PMSM DTC中的作用并提出电动汽车用PMSM电压空间矢量的选择方法。

The speed-sensorless vector control and the identification of motor parameters in this paper are the two novel research of vector control.Using asynchronous machine's mathematic model in three-phase static reference frame, this paper has derived it's mathematic model in two-phase static reference frameand in two-phase rotating reference frame, and got the coordinate transformance formulus based on the constant magnetic force and power force, by compared different field orientation methods, we can find that field orientation at rotor field can realize the decoupling of the stator current flux component

无速度传感器矢量控制和电机参数辨识是矢量控制的两个新的研究方向，本文利用异步电机在三相静止坐标系下的数学模型推导出两相静止坐标系、两相同步旋转坐标系下的数学模型，根据磁动势守恒和功率守恒的原则，得出各坐标变换公式；通过不同磁场定向方式的比较发现，异步电机按转子磁场定向时定子电流励磁分量和转矩分量可以比较方便地实现解耦。

Then the DTC theory of PMSM and the voltage vector table are analyzed. A new DTC scheme for PMSM is proposed in this paper, which is based on the area voltage vector. And the paper offers the available modulation algorithm between torque and flux.

拓展了一种基于区域电压矢量表的新型控制策略用于永磁同步电机直接转矩控制，并给出了转矩、磁链作用分量协调可控的电压矢量选取调制算法，基于理论分析和MatLab6。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。