This paper presents the design and implementation of a zero-voltage-transition power factor correction (PFC) converter having high power factor, high efficiency, and low harmonic line current.
本文研制一个具有高功率因数、高效率、低谐波且可操作于高频之零电压切换升压型功因修正器。
This paper presents an intelligence test set built by microcomputer technics to monitor and measure the harmonic and surge voltages in the power network and source, on-line and with a real time.
本文提出利用微机技术构造一种在线实时监视和测量电网、电源客观存在的谐波电压和浪涌电压的智能测试仪。
The harmonic screw type valve is driven by the double wave harmonic screw. It can transform circle movement to line movement for the closing and opening of the valve.
谐波螺旋式阀门采用双波谐波螺旋传动，实现由圆周运动向直线运动的转化，实现阀门的启闭。
Harmonic wave analysis method is the insulator medium consume factor on line method and discussed hte effect on the main factor of the medium consume on line supervision precision.
谐波分析法是绝缘介质损耗因数在线测的方法，相应讨论影响介损在线监测精度的主要因素。
Applying feedforward control of harmonic voltage to hybrid active power filter of finite harmonic impedance can restrain line harmonic voltage.
有限阻抗型混合有源电力滤波器中应用电压谐波前馈控制，能加强对网侧电压的谐波抑制。
It is thoroughly considered in this new method that harmonic attenuation, reactive power compensation, mistuning, background harmonic and resonance with power line impedance.
该方法较全面地考虑了谐波治理、无功补偿、背景谐波、失谐、与电网阻抗的串并联谐振等问题。
Based on analyzing user loads running characteristic and power system topology structure, this paper presents a new harmonic source separation method that is on-line search zero iterative method.
然后在分析用户负载运行特性的基础上，根据供电网络拓扑结构，提出一种新的谐波源分离方法—在线寻零迭代法。
Even if it worked with three-phase sine, three-phase line current would have non-sine aberrance and produce harmonic wave-electricity.
即使在三相正弦激励的作用下，三相线电流也将发生非正弦畸变，产生谐波电流。
I believe that your peculiar harmonic rhyme that is my one-line poems.
我相信，你那奇特的谐韵，就是我的另一行诗章。
A distorted sine signal is simulated in the system, and the on-line harmonic monitoring is carried out through this system, revealing the state of its basic wave and harmonic waves.
该系统模拟生成一畸变正弦信号，并运用该系统实现谐波的在线监测分析，得出其基波与谐波的情况。
If the time harmonic source is assumed to be constant voltage, the summed pulse propagation is the impulse response along the line.
若各频率成份之电源为定电压，则所得时域脉波即脉冲电压源在传输线上之脉冲响应。
Experimental results show that if the active filter is installed on the end bus of the radial power distribution line, it successfully performs harmonic damping throughout the distribution line.
实验结果证明，将有源滤波器安装在放射状配电网的末端母线上，可在整个配电网上有效地抑制谐波。
Using the periodic orbit theory, we computed the quantum level density of a particle in the two-dimensional harmonic oscillator potential with and without the magnetic flux line for different cases.
利用周期轨道理论，我们计算了在不同情况下，一个粒子在二维谐振子势中存在和不存在磁通量时的量子能级密度。
On the based of artificial neural network, the active power filter can work properly to cancel load's line harmonic current. Only few readily available parameters are used in the method.
通过预测负载网侧输入电流的基波成分，控制有源滤波器产生用以抵消非线性负载的谐波电流。
In this paper the development of power line harmonic analyzer based on ind us-trial PC is introduced, and the working principle and design method are given.
介绍了以工业控制计算机为核心的电能质量分析仪，阐述了仪器的工作原理和设计要点。
Experimental results show that three-phase PWM converters are advantageous in high power factor, small input-line current harmonic distortion and bi-directional power flow.
实验表明，作为双馈感应发电机转子励磁电源的三相pwm变换器具有功率因数高、网侧电流谐波小、能量双向流等优点。
The background harmonic voltage is related with not only the power of harmonic sources and variation of power line voltages but also the power system structure and capability.
背景谐波电压不仅与电网中谐波源强弱、网压变化有关，而且与电网容量、结构有关。由于其直接决定电网承受畸变负荷的能力，所以有必要对各种电网的背景谐波状况作全面了解和测量。
In order to solve this problem, a harmonic suppression method using spur-line is introduced. Moreover spur-line will not increase the design complexity.
本文提出了一种马刺线抑制天线谐波的方法，马刺线蚀刻在馈线上面不会增加整个电路板的尺寸。
In the present paper, the resonant response of a vertical mooring-line in case of neutrally buoyancy, for a given harmonic longitudinal excitation, is discussed. The law of stress-strain is nonlinear.
本文讨论垂直的中和浮力系留素在浮体的纵向激励处于谐振的情形下的共振响应问题，其中应力应变关系为非线性的。
The harmonic current in the windings on the line side under practical running condition is analyzed.
该电流在上下桥的阀侧绕组中表现为不对称的两相负载运行。
The design of input differential-mode (DM) EMI filter for the reduction of total-harmonic-distortion (THD) for line current has been developed in considerations of practical design limitations.
而设计加入一个差模EMI滤波器以提升系统电路的功率因数并降低总电流谐波量以符合相关的规范。
Harmonic content of the input currents depends on the rectifier voltage gain m defined as ratio of the output voltage and the input line voltage as well as the employed control.
输入电流的谐波量有赖于整流器的电压获取值m，即输出电压和输入电压的比值，也有赖于操作人员的控制。
The time harmonic voltage and current wave propagation along a transmission line can readily be transferred from frequency domain voltage and current phasor distribution along the line.
由传输线上电压及电流沿线分布之频域相量，可转换为传输线上各频率成份弦波电压及电流沿线之时域传播。
The time harmonic voltage and current wave propagation along a transmission line can readily be transferred from frequency domain voltage and current phasor distribution along the line.
由传输线上电压及电流沿线分布之频域相量，可转换为传输线上各频率成份弦波电压及电流沿线之时域传播。
应用推荐