对两种情况下的输入电流谐波成分进行了动态分析。
In both cases, the harmonic content of the input current have been evaluated analytically.
输入电流谐波含量高是多脉波二极管整流电路的一大缺点。
One of the problems of the most diode rectifiers is that they include large harmonic contents in its input current.
减少了变频器输入电流中包含的高次谐波成份的输出。
It reduces the high hypo syntony wave output part included in the converted input current.
从理论上分析了单相电压源pwm变流器输入电流的谐波特性。
The harmonic characteristic of input current in single-phase voltage source PWM converter is analyzed theoretically.
实验结果表明，应用该电路拓扑的实验装置，其功率因数较高，输入电流的总谐波畸变较低，输出电压纹波小，而且整个装置的效率也比较高。
Experiment result showed, the topology can make the device get to high Power Factor (PF), low Total Harmonic Distortion (THD) of input current, low ripple of output voltage, and high efficiency.
仿真和实验结果表明该系统能够有效抑制三相整流电路交流侧输入电流的谐波，降低输出电压纹波，减小整机体积。
The simulation and experimental results show that this system can restrain harmonics of three-phase rectifier of AC-side input current, reduce the output voltage ripple and decrease the volume.
仿真和实验结果表明：所提出的变换器输入电流和输出电压为正弦，谐波小且输入功率因数可控，并可实现零电压换流。
Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation.
功率因数校正技术对输入电流进行校正，提高设备利用率，减少谐波对电网的污染。
Power Factor Correction (PFC) technique make input current waves sine, improve efficiency of the system and reduce harmonic waves.
然而由于其非线性的特性，导致其输入电流中含有大量奇次谐波，对电网造成了严重的谐波污染。
However, because of its nonlinear characteristics, the switching power supply resulting input current contains a large number of odd harmonics, which cause serious harmonic pollution for the grid.
再将有源滤波器接入点后的线上电流的谐波分量反馈回来，作为调节器的输入，调整前馈控制的误差。
APF then access points al0ng the harmonic current feedback, as a regulator input, adjusted feedforward control error.
再将有源滤波器接入点后的线上电流的谐波分量反馈回来，作为调节器的输入，调整前馈控制的误差。
Active Filter access point and then after the line current harmonics back to the company as the regulator's input, adjusting the feedforward control error.
在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。
Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.
为提高逆变电源的功率因数，必须采用谐波抑制技术降低输入电流的谐波畸变率。
To increase power factor, the current distortion can be reduced by harmonic suppression technology.
基于MA TLAB软件，仿真研究了谐波源输入电流、输出电压及输出电流的谐波特性，为矿井滤波装置的设计提供了理论基础。
Based on the MATLAB software, the harmonic characteristics of input current, output voltage and output current are simulated. Accordingly these results provide a theoretic basis for filter design.
该样机在实验中测得输入电流总谐波畸变率（THD）为4.26%，功率因数为0.998，达到了预期的设计效果。
Themeasured input current THD is 4.26%. Power Factor attains 0.998. Theprototype realizes the expectation.
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。
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.
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。
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。
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.
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