A class of compensating current calculating circuit based on instantaneous power theory is presented.
介绍一类基于瞬时功率理论的实时无功电流计算电路。
The curve abnormity extent with compensating current is larger than the extent without compensating current;
存在补偿电流的曲线异常幅度大于无补偿电流的异常幅度;
A new method to calculate the source current reference and the compensating current reference for shunt active power filter (APF) is presented.
提出了一种计算并联型有源电力滤波器电源电流参考信号和补偿电流指令信号的新方法。
It detects each harmonic current and generates the compensating current with the controlled current source, then it injects the current into the compensating winding.
它检测各次谐波电流并用可控电流源一一产生相对应的补偿电流注入各个补偿绕组。
For the simple-phase feature of traction grid and the active power circulating between the two arms, an improved method of simple-phase compensating current detecting is used.
对于牵引网的单相性以及实现两臂负荷有功功率的流通,采用了改进型的单相补偿电流检测方法;
The STATCOM based on the multi-level converter technology becomes a trend with fast dynamic response, extensive range of regulation, smaller volume, and high quality waveform of compensating current.
基于电力电子逆变技术的静止同步无功补偿器(STATCOM)具有动态响应速度快、调节范围广、装置体积小、补偿电流波形品质高等优点,成为无功补偿的发展趋势。
That will lead to currency crises and cross-border disputes like the current spat between Iceland, Britain and the Netherlands over the bill for compensating depositors in Icelandic Banks.
这会造成货币危机和跨境争端,比如当下冰岛、英国和荷兰就补偿冰岛银行存款者所引发的争端。
A method of current detect and control for the new active power filter (APF) is presented, which has the ability of canceling harmonic and compensating reactive power at the same time.
提出了一种新型的有源电力滤波器电流检测和控制方法,在补偿谐波电流的同时还可以进行无功补偿。
The study on shunt active power filter, which is a novel device compensating harmonics and reactive power current simultaneously, is the focus in the field of power quality control.
并联有源电力滤波器作为一种新型的谐波、无功综合补偿系统,是电能质量控制领域中的研究热点。
Precisely measuring and tracing is a precondition and basis of arc-suppression coil with automatic tuning accurately compensating system capacitive current and efficiently quenching ground arc.
精确的测量和跟踪是自动调谐式消弧线圈精确地补偿系统电容电流、有效地熄灭接地点电弧的前提和基础。
This paper mainly deals with the design of APF based on harmonic current compensating approaches.
本论文重点研究了基于不同谐波电流补偿方法的滤波器的设计。
The relationship between the dead-time voltage sector and the stator current sector is analyzed and a method for compensating the stator voltage sector is proposed based on the reconstructed current.
分析了死区电压矢量和定子电流矢量的关系,由此得到一种根据重构电流矢量来补偿定子电压矢量的方法。
A new method of detecting compensating reference current for active power filters by frequency multiplication modulation (FMM) is presented in this paper.
提出了一种电力有源滤波器补偿参考电流的倍频调制检测新方法。
To improve further the dynamic characteristic, the non-linear PI arithmetic with the load-current forward compensating (LCFC) control is also improved.
为了进一步提高系统的动态性能,在非线性PI算法中加入了负载电流前馈补偿控制。
Therefore, it is demonstrated that the shunt or series APF should be used for compensating the current or the voltage harmonic source.
从而说明对电流型或电压型谐波源进行谐波补偿,应该分别使用并联型或串联型apf。
Aim at an-arc suppression reactor earthing power system, we design a suit of microcomputer system for compensating single-phase earthing current and selecting line.
针对中性点经消弧线圈接地的小电流接地系统,设计了一套单相接地补偿及选线的微机保护装置。
For compensating reactive power and harmful currents in low voltage power system, the paper proposed two control schemes for STATCOM, which are indirect-current control and direct-current control.
本文针对低压配电网络的无功补偿和有害电流滤除问题,提出采用间接和直接电流控制两种STATCOM方案。
Aim at an-arc suppression reactor earthing power system, a suit of microcomputer system for compensating single-phase earthing current and selecting line was designed.
针对中性点经消弧线圈接地的小电流接地系统,设计了一套单相接地补偿及选线的微机保护装置。
The electric current and voltage are close to the phase after compensating, namely the power factor is close to 1, so the purpose of dynamic var compensation is achieved.
由于补偿后的电流与电压在相位上接近,即补偿后的功率因数接近1,所以达到了动态无功功率补偿的目的。
CONCLUSION: the shield guard method for wires and the output current compensating method for current source can effectively improve the stability of current source's output current.
结论:所采取的电极导线屏蔽驱动和输出电流补偿的方法可以达到有效提高恒流源输出电流稳定度的目的。
Using zero compensating line of two direct-current amplifiers as a reference line was suggested.
建议用两路直流放大器的零补偿线作为参考线。
Using zero compensating line of two direct-current amplifiers as a reference line was suggested.
建议用两路直流放大器的零补偿线作为参考线。
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