zero vector

Direct torque control of permanent magnet synchronous motor based on fuzzy zero-vector

基于模糊零矢量永磁同步电机直接转矩控制

Finally, the difference between them is analyzed from the angle of the effect to synthesis of flux and dead-time due to the different distributing ways of zero-vector.

通过对电压空间矢量脉宽调制(SVPWM)原理的介绍及算法的分析,在TMS320LF2407上分别以2种方法实现了SVPWM波形的输出,并对这2种实现方法的输出效果进行了比较,同时就零矢量分布方式的不同对磁链合成及死区的影响角度分析了两者之间的差异。

Aiming at LIM control, a flux linkage locus PWM control method is presented based on zero-vector carrier, which optimizes traditional SVPWM, reduces harmonic of motor side voltage and torque ripple of motor.

针对直线感应电机控制,提出了一种零矢量载波磁链轨迹PWM控制方法,优化了传统的七段式SVPWM,减小了电机侧电压的谐波含量和电机的转矩脉动。

Owing to the absence of the slip in the permasyn motor control variable,the electromagnetic torque is controlled by the incremental quantity of the torque angles while the effect of null vector on torque an.

由于永磁同步电机控制变量中没有转差的概念,电磁转矩变化受控于功角与功角的增量,而零电压矢量对功角增量的作用很弱,因此一般从转矩的动态控制效果认为,零矢量不适合在永磁同步电机直接转矩控制中应用。

The 11 properties of null vector, null frame , spinor and spin frame are proved strictly.

严格证明了关于零矢量、零标架、旋量及旋标架的11个性质,对旋量与张量、旋标架与零标架进行了比较研究,表明旋量对于研究黑洞的零曲面性质是比张量更为优越的工具。

In this paper, a novel discontinuous space vector PWM (DSVPWM) control of five-phase inverter is proposed by arranging the two zero vectors reasonably.

本文在五相逆变器连续空间矢量PWM(CSVPWM)控制的基础上,通过对两个零矢量的合理使用,提出了一类新的五相逆变器不连续空间矢量PWM(DSVPWM)控制方法。

In the space vector PWM technology a large number of PWM methods can be generated with different distributions of the two zero vectors which would have great influence on the inverter characteristic.

空间矢量PWM控制技术中两个零矢量的不同分配方案会产生多种PWM方式,并且会对逆变器的控制特性产生重要影响。

An improved HCC is put forward, which has the advantages of limited maximum current error,simplified choice of outer band and switching frequency by adding three effective voltage vectors and a zero vector in every region.

基于空间矢量调制的三相滞环电流控制器的外滞环宽度较小时不能有效的控制三相电流最大误差,针对这个问题,提出了一种改进滞环电流控制器,它在每一个区间内采用了三个有效电压矢量和零矢量来控制三相电流的变化,从而能有效的控制三相最大电流误差,简化了外滞环宽度的选择,降低了三相总开关次数;并做了仿真试验,试验结果也证明了以上其优点。

V-BLAST detection based on nulling vector set searching;

基于迫零矢量集搜索的V-BLAST检测算法

The circulating current can be effectively inhibited by controlling the operation time for different zero vectors in each PWM cycle.

在该模型的基础上分析并网逆变器并联运行时的相互影响,以及并网逆变器采用空间矢量脉宽调制(SVPWM)算法时零矢量对环流的影响。

A Method of Zero Vector and Variable Delay Randomized PWM

一种零矢量-变延时随机PWM方法

Direct torque control of permanent magnet synchronous motor based on vectors subdivision

基于零矢量插入的矢量细分的PMSM直接转矩控制研究

Direct torque control of permanent magnet synchronous motor based on fuzzy zero-vector

基于模糊零矢量永磁同步电机直接转矩控制

Research on Zero-Watermarking of Chinese Texts Based on Vector Feature

基于矢量特征的中文文本零水印研究

A Chinese Texts Zero-Watermarking Algorithm Based on Vector Graphics

基于矢量图形的中文文本零水印算法

Zero-Sequence Signal of Space Vector Modulation for Three-Level Neutral-Point-Clamped Inverter Based on Vector Diagram Partition

基于矢量分区的三电平SVPWM模式零序分量分析

Researches on Machine Drawing Vectorization and Image Mosaic;

机械零件图纸的矢量化及拼接技术研究

Frame Rate Up-Conversion Algorithm Based on Zero Detection and Vector Filter

基于零检测和矢量滤波的帧频提升算法

As mentioned above, we have not explicitly used the first condition for equilibrium, that the vector sum of the forces be zero.

如上所述，我们没有直接应用第一平衡条件，即力的矢量和为零。

Research on the SVPWM Strategies of Six-phase Induction Motor Based on Zero-sequence Balancing Vectors

基于零序平衡矢量的六相感应电动机SVPWM策略研究

OpenCV and Image Processing Based Mechanical Components Vectorization System

基于OpenCV与图像处理技术的机械零部件矢量化系统研究

A one - dimensional array.

矢量，矢径一维数组

An axial vector may itself enter into a vector product.

轴矢量自身可参与矢积。

A vector multiplied by a scalar quantity is a vector in the same direction as the original vector.

乘以标量的矢量是一个与原矢量同向的矢量。

In a dynamic situation the vector sum of the forces acting on the body vanished as in the static case.

在动力学状态下，作用在物体上的力和矢量和与静力学情形一样化为零。

Notes on the Bra Vector and Ket Vector, Reciprocal Basis Vectors and Reciprocal Vectors, Covariant Vectors and Contravariant Vectors;

关于左矢、右矢和相伴基矢、相伴矢量以及协变矢量、逆变矢量的几点注记

unbalance vector measuring device

不平衡矢量测量装置

vector analysis

矢量分析, 向量解析