Voltage sag not only causes drop of voltage magnitude, but also results in sudden changes of the phase angle, hence the difficulty of compensation is further increased. 电压暂降除了幅值减小外,还往往伴随着相角跳变,这样更增加了补偿难度。
Phase Angle Phase angle refers to the relation between two sine waves which do not pass through zero at the same time. 相角相角指的是两个不同时经过零点的正弦波之间的关系。
And then here we have what we call the phase angle, and I will return to that. 那么这样,就有相位角,我会回过去讲它。
An inter-phase coupling reactor with peculiar structure is studied, which forces its output current to shift a certain phase angle. 研究了一种具有特殊结构的相间耦合电抗器,它可以迫使其输出电流产生一定角度的相移。
A special constant phase angle element ( CPE) exists in the equivalent circuit of the impedance when there exists ASR. 分析表明,碱硅酸反应的特征是在等效电路中存在左旋的常相角元件。
The influence of coherent state strength, phase angle and squeezing parameter on position and momentum entropic squeezing for squeezed even and odd coherent were discussed by numerical calculations. 用数值方法讨论了相干态强度、相位角和压缩参数对压缩奇偶相干态位置熵和动量熵压缩特性的影响。
The correct detection of the voltage sag characteristics ( its magnitude, duration and phase angle jump) is of great importance for the power quality evaluation and its mitigation. 对于电压凹陷的三大特征量幅值、持续时间和相位跳变的准确检测是电压质量评估与抑制干扰首先要解决的重要课题。
It has a magnitude as well as phase angle. 感抗不但有幅值,而且有相角,它是一个复数量。
An algorithm based on the magnitude and phase angle of the generalized phasor to measure instantaneous frequency and swing frequency while the power swing occurred is presented. 提出了一种基于综合相量幅值和相位变化规律实时测量电力系统振荡中振荡频率及瞬时频率的算法,利用三相电流经相应变换获得综合相量。
And what is striking, really remarkable, that this is independent of the amplitude, and it's also independent of this angle phi, this phase angle. 令人惊讶的是,非常值得注意的,这个和振幅,没有关系,也和角度,没有关系,和相位角无关。
Direction of Arrival Estimation Approach Based on Phase Angle Feature of Correlation Function Using RBF Neural Networks 基于互相关函数相角特征的RBF神经网络来波方位估计
Under a certain condition, this interface impendance can be transferred to the constant phase angle ( CPA) impedance. Filters, couplers and baluns are fabricated in the high frequency passive device integration regions. 在一定条件下,此界面阻抗过渡到恒相角阻抗。滤波器、合器和平衡非平衡阻抗转换器系制造在高频被动元件整合区域内。
The technical method is introduced in this paper for the steady state phase angle measurement and the research aspects in applications based on GPS. 介绍了一种基于GPS高精度全网统一时钟的稳态相角测量的硬件方案。
Single-phase adaptive reclosing based on phase angle of fault 基于故障相相角的单相自适应重合闸
If you would have picked the minus, you would have found a different phase angle, but you can't pick minus. 如果你要取负值,你会找到不同的,相角,但是你不能取负。
The essential principle of amplitude division method is a map connection from sine or cosine signal to phase angle. 莫尔条纹信号幅值分割细分法细分原理的实质是两路信号的幅度值与相位值的映射关系。
This paper carries on the error analysis to the present crankshaft phase angle measuring technique, and proposed one kind of measuring error elimination measure. 本文对目前曲轴相位角测量方法进行了误差分析,并提出一种测量误差的消除措施。
There's not much physics in the phase angle. 在计算相位角时,用不到多少物理知识。
The Study of Voltage Phase Angle Measurement Algorithm On GPS 基于GPS的电压相角测量算法研究
If the change in weights up and down the Department of the phase angle of the road can change the direction of raw materials. 若改变上下部的重锤的相位角可改变原料的行进方向。
And now I can ask you x A including the amplitude A, including the phase angle phi? 现在我问你们,关于时间的,函数是什么,,what,now,is,x,as,a,function,of,time,包括振幅,包括相位角φ?
Phase Angle Compensation Control Strategy for Low-voltage Ride Through of Doubly-fed Induction Generator 双馈风力发电机低电压过渡的相角补偿控制策略
That are the amplitude changes of rotation speed frequency, and initial phase angle. 并分析了影响其抑振效果的三个因素:转速变化幅值,频率以及初相角。
The effetes of the original phase angle of the input signal on the output were also analysed. 还分析了输入信号初相角φ对输出的影响。
Amplitude and phase angle of current flowing in a time dependent power load are variant. 电力负载取用的电流在幅值和相位上是时刻变化的。
PLL ( Phase Lock Loop) technology is employed to realize the frequency tracing and constant phase angle control; 通过采用锁相环技术实现了逆变器工作频率的自动跟踪和容性逆变角度的恒值控制;
The results show that dynamic modulus and phase angle of the materials has obvious temperature and frequency dependence. 结果表明,伸缩缝材料的动态模量和相位角具有明显的温度和频率依赖性。
Effects of charging pressure, frequency and phase angle on the performance of PTC are also presented. 本文还计算了充气压力、频率和相位角等参数对制冷机性能的影响。
Thirdly, phase angle with the medium frequency band were used to evaluate protection performance under different supporting systems. 用中频段的相位角评价了各种不同配套体系下三涂层的防护性能。