AC/DC switching converters are highly nonlinear. Therefore they draw a non-sinusoidal current with a very low power factor.
DC开关变换器非线性程度很高,输入电流为非正弦形式,功率因数极低。
The converter 1 is controlled as a fundamental sinusoidal current source, and the converter 2 is controlled as a voltage source.
变换器1被控制为一个基波正弦电流源,变换器2被控制为一个可控电压源。
For example, an arc furnace is nonlinear since it will draw a no sinusoidal current (rich in harmonic's) when a sinusoidal voltage is applied.
例如,电弧炉就是一种非线性负荷,因为加上正弦电压后,它将形成非正弦电流(大量谐波)。
The electrical characteristics of the DBD type ozone generator powered by sinusoidal current source are analyzed on the basis of this equivalent circuit.
对正弦波电流供电DBD型臭氧发生器的电气特性进行了深入研究。
The second part is to design the sine wave networks circuits which is composed of sinusoidal current source array and switches, current to voltage converter (I-V converter), two staged LPF, etc.
二是正弦波网络:主要包括正弦量化的电流源整列和开关网络,电流电压转换器,二阶低通滤波器;
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。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
通过采用时变调制比的方法,可以消除不对称输入电压的影响,从而获得对称正弦输出电压或输入电流。
In the multiple-loop control strategy for sinusoidal inverters based on load current feedforward, delay of the feedforward directly impacts the system's performance.
在基于负载电流前馈解耦的正弦波逆变器多环控制策略中,负载电流前馈作用的延迟直接影响着系统的性能。
Adopting sinusoidal instantaneous voltage and current, a new algorithm for measuring sinusoidal electrical parameters has been put forward.
提出了一种利用正弦交流电压和电流的瞬时值测量正弦交流电参量的新算法。
The measurement principle of the average power for non sinusoidal period current circuit is introduced in this paper.
介绍了非正弦周期电流电路的平均功率测量原理。
Using hardware digital synthesis method, the signal source generates three phase sinusoidal voltage and current signal.
该信号源中采用硬件数字合成的办法产生三相电压与三相电流信号正弦波。
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.
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。
Experiments show that the motor phase current controlled by this kind of SPWM inverter can be strictly sinusoidal and the running of the motor can remain steady for the ultra low speed range.
实验结果表明,这种SPWM逆变器控制的电机相电流严格正弦,能在超低速下平稳运行。
Further, the current quadrilateral and admittance quadrilateral, as well as their similarity to the power quadrilateral in non-sinusoidal alternating-current circuits were derived.
由功率四边形进一步确立了非正弦交流电路中的电流四边形和导纳四边形,以及它们和功率四边形的相似关系。
RL circuit is taken into consideration, in which the transient current signal includes a period component varying in sinusoidal waveform and a non-period component varying in exponential waveform.
该算法考虑了RL电路中的暂态电流,假设暂态电流含有一个按正弦规律变化的周期分量和一个按指数规律变化的非周期分量。
The motor drive system almost all use inverter supply power, which output non-sinusoidal voltage-current and produce non-sinusoidal electromagnetic field.
电机传动系统大都采用变频器供电,输出的是非正弦电压、电流,其在电机中产生非正弦磁场。
Then, the effects of current sensor measurement error and non-sinusoidal magnetic field distribution on motor torque fluctuation are theoretically investigated.
然后从理论上研究了电流传感器测量误差和非正弦磁场分布对永磁同步电机转矩波动的影响。
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。
It was found that when the capacitive ignition occurred, arc voltage will keep minimum arcing voltage, but arc current possibly attenuates in sinusoidal form with different circuit parameters.
在火花试验装置上进行爆炸试验,得到本质安全复合电路的放电波形,发现电弧电压基本维持在最小建弧电压,而电容电流随着电路参数的不同而发生振荡。
It was found that when the capacitive ignition occurred, arc voltage will keep minimum arcing voltage, but arc current possibly attenuates in sinusoidal form with different circuit parameters.
在火花试验装置上进行爆炸试验,得到本质安全复合电路的放电波形,发现电弧电压基本维持在最小建弧电压,而电容电流随着电路参数的不同而发生振荡。
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