它的关键技术是检测出补偿对象电流中的谐波和无功等电流分量。
Its key technology is the current compensation object detected in the other harmonics and reactive current component.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
既能单独检测出畸变电流中的任意电流分量，又能获得谐波和无功电流之和。
It can detect not only any current component in the distorted current, but also the sum of harmonic and reactive currents.
准确检测这些电流分量，正确评价用户电能质量的好坏，已经是非常迫切的问题。
It is urgent to detect the harmonic components and the negative sequence components of current accurately and to evaluate the quality of electric energy correctly.
基于对称分量法理论，提出了基于检测正序、负序、零序电流分量的电动机保护方法。
Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.
实验结果表明，该装置可对三相四线制系统中的谐波、负序、零序等电流分量进行补偿。
Experimental results prove the proposed control method can compensate the harmonic, negative sequence and zero sequence current components in the three phase four wire.
大型电力变压器螺旋线圈的扭转变形主要是由于轴向电流分量和辐向漏磁场共同作用所产生的。
The torsional deflection of spiral winding for the large power transformer is mostly caused by the common effect of the axial current component and the radial leak magnetic field.
为了解决上述问题，本文采用了抑制网侧负序电流分量的控制方案，仿真结果表明采用该方案后输出电流波形满足了正弦化及平衡化的要求。
In this paper, a control system with restraining negative sequence current is adopted simulation results of which demonstrate that output current waveform can meet sinusoidal and balanced demand.
高压输电线路发生故障后的暂态电压或电流分量中包含比工频分量更多的故障信息，充分利用这一信息是构成具有绝对选择性单端无通信保护的前提。
Moreover, it is the basis of constructing a new non communication protection through absolutely utilizing the fault information which is comprised in transient component of fault current or voltage.
直流电流源或电压源。可指定交流分量的大小。
DC current or voltage source. Magnitude of AC component can be specified.
主要用途是将叠加在直流电流上的交流分量限定在某一规定值。
The main purpose is to direct current superimposed on the exchange of a specified weight limit value.
采用含有丰富谐波分量的窄脉冲电流作为励磁信号对非晶丝直接励磁，使传感器具有灵敏度高、响应快的优点。
The magnetic sensor has characteristics of high sensitivity and quick response due to the amorphous wires excited directly by sharp pulse train current containing amount of harmonic signals.
采用基于叠加原理的短路电流计算方法，克服了传统的对称分量法应用于配电网短路电流计算时所遇到的困难。
Furthermore, the superposition theorem is then adopted in the approach, which overcomes the difficulties when applying the symmetrical components to the short circuit calculation.
该电流还有一个交流分量。
该算法可以滤去短路电流中的交流谐波分量，得到直流电流变化率的准确结果。
By this algorithm, the ac harmonic components of short-circuit current can be filtered, and the accurate DC current rate of change can be obtained.
提出了一种新型三相逆变器输出滤波器，它能有效地减少输出电压和电流中的开关谐波分量。
A new inverter output filter is presented. It can reduce efficiently the output voltage and current switching harmonic.
该方法以电网电压为同步信号，在电网电压信号的过零点采样直流侧电容电压，并通过周期离散控制可以获得负荷电流有功分量。
The new control way can realize linear control for DC-bus voltage and get the fundamental component of the load current synchronously with a little of calculation.
探索综合利用故障初始电流、电压行波线模分量实现配电线路双端故障测距的新方法。
A new method of fault location for distribution feeders based on the aerial mode component of fault generating current and voltage traveling waves is discussed.
在此基础上，提出了基于非滤波方式实现泄漏电流工频和脉冲分量分离的方法。
Considering the characteristics of digital filter method and components of leakage current, this paper demonstrates that digital filter method is not suitable for separating impulse component.
结合自动补偿电网的特征，对利用零序电流的附加有功分量进行单相接地故障选线进行了研究与分析。
The paper made research and analysis on the topic of faulted line selecting in an auto compensated distribution network in use of the active part of residual currents.
通过提取各种故障情况下电动机电流序分量的特点，在保护单元内为电动机提供简单完全的保护；
The simple complete protection for a motor in the protection units is described based on characters of motor's sequence currents in case of different faults.
发生发展性故障后，利用保护安装处的全电流减去求得的支路电流得到发展性故障后的故障分量电流。
After an evolved fault occurred, the fault superimposed components can be calculated through subtracting the solved load currents from the currents at the measuring point.
再经过变换得到原电流的基波分量，从原电流中减去基波分量得到要检测的谐波分量。
The fundamental current can be reconstructed by transformation while the harmonic current can be gained by subtracting fundamental components from the original current.
还讨论了在负载电流中引入高频分量时熔断器中的电流分布问题。
The current distribution in fuses is discussed when high frequency components are present in the load current.
文中还给出了当平面波正投射时，同心圆盘-圆环结构上感应电流各分量的幅度分布和散射场分布。
Numerical results are also given for the current distribution and the far radiation patterns of a disc-ring structure.
分析了系统的全局稳定条件和补偿后电流中直流分量的产生机理，研究了系统带不平衡负载和动、稳态补偿性能以及稳定性。
The analysis of the whole region stability condition and the mechanism of the DC off-set in the compensated current of the system is proposed.
同时讨论了定子电流励磁分量给定信号对分岔条件的影响。
Influence ofd axis stator current reference on Hopf bifurcation was also discussed.
MOA阻性电流检测的关键在于电压基波分量与泄漏电流基波分量相位差的检测。
The key to the detection of MOA resistive current is the detection of the phase difference between fundamental component of voltage and fundamental component of leakage current.
MOA阻性电流检测的关键在于电压基波分量与泄漏电流基波分量相位差的检测。
The key to the detection of MOA resistive current is the detection of the phase difference between fundamental component of voltage and fundamental component of leakage current.
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