A novel method of instantaneous phase analysis based on empirical mode decomposition is presented.
提出了基于经验模态分解的瞬时相位分析的新方法。
The PLL system could obtain basic component of the input, track the instantaneous phase of basic component, and output instantaneous Angle frequency.
该方法通过一个改进锁相环系统实时跟踪输入信号的基波瞬时相位，输出基波瞬时角频率，进而得到输入信号的基本频率估计。
Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
首先介绍从信号幅度、相位、频率及功率谱等特性中提取的三种特征参数，应用这三种参数采用人工神经网络对模拟调制信号进行了识别。
The appearances of BSRs oon near-offset profile, stacked profile, migration profile, migration profile, instantaneous amplitude profile and instantaneous phase profile are compared and described.
比较了近炮检距剖面、叠加剖面、偏移剖面、瞬时振幅剖面与瞬时相位剖面上BSR的显示特征。
It has four dials, which offer the following measurements: "instantaneous jump hour, concentric retrograde minutes, retrograde date and bi-hemisphere moon phase."
它有四个表盘分别执行以下功能：“瞬间跳时、同心逆拨分针、逆跳日期指针、双半球月相”简而言之，这块表有记录着两个日期，两个时间的双套时间表盘。
In this paper, we propose and discuss two new control methods for three phase shunt APFs: the sinusoidal line current control method and the instantaneous reactive power compensation control method.
本论文提出三相并联型有源滤波器的两种新的控制方法，即正弦波化控制和瞬时无功功率的控制方法。
This paper presents four-phase transmission harmonic current detecting method based on instantaneous reactive power theory.
该文提出了基于瞬时无功功率理论的四相输电谐波电流检测方法。
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。
After the coating broke off, the instantaneous heat builds up and softens the substrate's bonding phase, which results in breaking off of hard phase particles and sharp wear of substrate.
涂层剥落后，切削区产生的瞬时热量聚集使基体粘结相软化，从而导致硬质相颗粒脱落和基体的剧烈磨损。
Further more, the switches reclose at optimal reclosing time by phase for instantaneous fault and shut down reclosure for permanent fault.
瞬时故障时在最佳重合时刻分相重合，永久故障时闭锁重合闸。
The way for defining the instantaneous release and the continuous release, and the criteria for determining the passive phase of the transition of the heavy gas are put forward.
提供了确定瞬时泄漏和连续泄漏的方法，以及判定重气扩散时转变为中性阶段的准则。
The results showed that both pre eutectic Zn rich phase and Al rich phase have the same features of instantaneous nucleation but have different characteristic growth.
结果表明，先共晶富锌相和先共晶富铝相都具有瞬时形核特点，但生长规律不同。
Provision may be made for the clock patterns to be selected taking into consideration the instantaneous rotary angle position of the phase vector.
也可以规定在考虑相矢 量的瞬时的旋转角度位置下选择该节拍模式。
Instantaneous mass transfer of gas-microdroplet two-phase flow is one of the most important procedures in the field of chemical engineering, colloid science and environment science.
气雾两相流瞬态传质现象广泛存在于多相反应器、燃烧、空气污染物控制和大气运动等化工、环境和气溶胶科学领域。
In this paper, a simple and practical instantaneous harmonic current detecting method based on the phase distinguishing technology is introduced.
介绍了一种简单实用的基于鉴相原理的瞬时谐波电流检测方法。
How to define instantaneous reactive current and reactive power in three-phase non-sinusoidal asymmetrical systems is still a concerned problem by academia.
如何定义三相系统的瞬时无功电流、瞬时无功功率一直是学术界关心的问题。
The interpretation of active and reactive currents in non-sinusoidal and unbalanced three-phase four-wire systems is given based on the generalized instantaneous reactive power theory.
以通用瞬时无功功率理论为基础，阐述了电压不对称和非正弦条件时的有功和无功电流的物理意义。
A new harmonic detection way based on the single-three phase method and instantaneous reactive power theory was adopted to detect single-phase power system.
采用了单相-三相构造法和瞬时无功理论的谐波检测方法来检测单相系统。
The A302 Manual Starter is a 3-phase manual motor starter and protector with instantaneous magnetic short circuit trip mechanism.
A302手动起动器是三相手动电动机起动器和保护装置，带有瞬间磁性短路跳闸机制。
In the paper, a novel instantaneous frequency measure method, which is applicable for the frequency measure system of frequency hopping radar, is presented according to the digital phase-shift theory.
本文根据时钟数字移相原理，提出了一种新的瞬时测频方法，适用于捷变频雷达测频系统。
In this paper, the instantaneous model of zero-sequence circulating current between parallel three-phase inverters with three-pole reactors and three-pole transformers is established.
该文基于三磁柱变压器及三磁柱电感的动态方程建立了带三磁柱电感及三磁柱变压器的三相逆变器瞬时零序分量模型。
Subsequently, a novel controller for DC bus voltage regulation is put forward according to the small signal model based on the instantaneous power balance in AC and DC sides of three-phase SAPF.
然后根据交流侧和直流侧的功率平衡方程，推导了电压环的小信号模型。最后基于该模型设计了一种高动态性能的直流电压调节器。
The relay is made up of integrated circuits. The line instantaneous overcurrent protection and overcurrent protection are combined with the once 3-phase reclosure application to form a whole body.
该继电器采用集成电路构成，集线路的速断保护、过电流保护及三相一次重合闸于一体。
The instantaneous reactive power theory is widely used in the detections of harmonic and reactive current in three-phase active power filter.
在该控制系统中实施了基于瞬时无功理论的瞬时功率和瞬时电流的检测算法以及一种开闭环相结合的复合控制策略。
Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.
首先运用对称分量法将单相异步电动机分为正序系统和负序系统，然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。
To overcome the disadvantage of higher torque ripple in Gearing Motor, one method of instantaneous torque control by optimum profiling of the phase currents is presented.
仿真结果表明，此方法对分析啮合电动机及其驱动系统在各种控制方式下的运行性能具有一定的参考价值。
To overcome the disadvantage of higher torque ripple in Gearing Motor, one method of instantaneous torque control by optimum profiling of the phase currents is presented.
仿真结果表明，此方法对分析啮合电动机及其驱动系统在各种控制方式下的运行性能具有一定的参考价值。
应用推荐