用主成份分析对高维模式空间降维，寻找模式空间电流效率较高的区域；
The optimum region of current efficiency was obtained by principal component analysis(PCA) in poly-dimension and result the optimum point in the optimum area.
我们能看到，所有细节的空间动画分布，就在你打开电流和切断的时候。
We can actually see spatially all the details in the field animated as you turn the current on and off.
为了能有空间装入相机和其他电子设备，梅吉尔的团队开始关注刀鱼，这种鱼可以让身体保持僵硬，来感知水中的电流。
To allow more room for cameras and other electronics, Megill's team took cues from the knifefish, which keeps its body rigid to sense electric currents in the water.
利用麦克斯韦方程组和场的轴对称性，分别对含不稳定电荷源和不稳定电流源的轴对称非静态空间电磁场进行了研究。
By using the Maxwells equations and axial symmetry, the axial symmetric unstable electromagnetic field with unstable charge source and unstable current source is studied.
电荷守恒对应于时间对称性，而电流守恒则对应于空间的对称性。
The conservation of charge corresponds to time symmetry, while conservation of current corresponds to space symmetry.
双空间矢量调制两级协调控制能实现整流级零电流换流，极大地减少了开关损耗，提高了变换器的效率。
Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.
系统采用位置、速度和电流环三环控制，并结合空间矢量脉宽调制（SVPWM）算法。
The servo control system combines position loop, speed loop, current loop with algorithm of space vector pulse width modulation(SVPWM).
本文证明了在似稳恒条件下，全空间的位移电流在任何一点激发的磁场恒为零。
The magnetic field of overall space displacement current excited at any point is always proved tobe zero.
在文中引入了扩展全空间概念，由此得到电荷守恒和电流守恒的一般形式。
This paper introduces the concept of extended total space, and then we extend conservation of charge and conservation of current to general case.
提出了一种基于空间矢量的全数字化预测电流控制SPWM逆变器。
This paper describes a completely digitized predictive current controlled SPWM inverter based on space vector.
利用三维空间矢量，提出了一种新型的无需坐标变换的三相电路畸变电流检测方法。
Using three-dimensional space vectors, this paper describes a simple method for detecting the distorted current without any coordinate transformation.
本文提出了一种基于最优电压空间矢量的有源滤波器滞环电流控制方法。
An optimized space voltage vector (OSVV) Based hysteresis current control method for active power filters is proposed.
不同于传统的模拟滞环比较器，采用基于三维空间矢量脉宽调制(3dSVPWM)法控制补偿电流的产生。
Instead of the conventional analog hysteresis comparator, the compensatory current is produced by 3-dimensional space vector modulation (3d SVPWM) technique.
分别计算和分析了介质阻挡放电中电场、带电粒子浓度以及电流密度在放电空间的分布和随时间的演变过程。
The distribution in discharge space, time change of electric field intensity, electron and ion density and the current density are calculated.
在传统的PWM整流控制的基础上，论文利用开关函数建模法，提出了基于预测电流的PWM电压空间矢量控制方法。
Based on the traditional control on PWM rectifier, space vector PWM predictive current controller is presented using the switching function model.
应用瞬时值对称分量变换，可提取电压、电流故障分量的正序空间向量。
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.
该设备的小尺寸允许它取代较大的电流传感电阻器，从而节省了电路板空间。
The device's small size allows it to replace larger current sensing resistors, saving space on the circuit board.
分析了传统矩阵变换器空间矢量调制策略，提出一种新型的矩阵变换器电流控制策略。
A current control strategy of matrix converter based on conventional space vector control is proposed.
死区效应可被视为一种空间矢量，它由两个因素决定：扇区数和相电流方向。
Dead-time effects can be regarded as a kind of space-vector, which is determined by two factors: sector number and direction of phase current.
位移电流的机理只对反向偏压或要维持空间电荷层所需要的非常弱的正向偏压条件下的电容器才有用。
The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer .
利用这些公式，可以简便地用于判定一次电流场异常成分的一些空间分布规律，对于正确认识异常场的形态特征颇有益处。
These formulas can be used quite simply to determine the spatial distribution of the anomaly of the primary field, which is very helpful in recognizing the characteristics of anomaly field.
其电弧稳定与否，主要取决于电流过零瞬间的电弧空间电离度、电极发射电子能力及再引燃电压的上升速度。
The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.
本文通过对传统滞环电流控制器的分析，结合电压空间矢量调制方式，提出一种改进的滞环电流控制方法。
This paper presents a sort of improved hysteresis current control method through analyzing the traditional hysteresis current controller and combining voltage space vector modulate method.
等离子体片中的粒子被加热和加速后，注入近地空间，产生环电流和极区亚暴。
The particles are heated and accelerated in the plasma sheet, and then injected into the near earth space, and produce the ring current and auroral substorm.
利用可编程逻辑器件克服电压信号和电流信号分时测量所带来的误差，同时也提供了数据存储空间。
Use of programmable logic devices to overcome voltage and current signals by the time of measurement error, and also provided a data storage space.
利用麦克斯韦方程组和场的轴对称性，分别对含不稳定电荷源和不稳定电流源的轴对称非静态空间电磁场进行了研究。
By using the Maxwell's equations and axial symmetry, the axial symmetric unstable electromagnetic field with unstable charge source and unstable current source is studied.
该方案通过电流矢量空间角判断感应电机三相定子电流正负，推导出三相定子电压的补偿量。
This scheme utilize the current vector space Angle to judge the three stator current polarity, deduce the three stator voltage compensations.
针对电压源型空间矢量脉宽调制逆变器的死区效应，提出了一种根据电流矢量判断电流极性的死区补偿方法。
Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.
该文提出了一种采用内环空间矢量电流调节器和外环同步坐标比例积分控制器相级联的三相四桥臂逆变器的控制方案，实现了对三相四桥臂逆变器的解耦控制。
This paper presents a decoupled control scheme for three?phase four?leg inverter through an inner current regulator based on space vector cascaded with an outer synchronous frame PI controller.
慢极化弛豫机构来源于空间电荷和缺陷的扩散，宏观表现为吸收电流，用时域微分谱可解释这一结果。
The mechanisms of slow polarize relaxation come from the diffuse of space charges and traps, it is absorption current in the macroscopic.
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